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NRG Energy

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FY2017 Annual Report · NRG Energy
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2017 

Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form 10-K

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the Fiscal Year ended December 31, 2017.

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the Transition period from                      to                       .

Commission file No. 001-15891

     NRG Energy, Inc.
(Exact name of registrant as specified in its charter)

Delaware
(State or other jurisdiction of incorporation or organization)

41-1724239
(I.R.S. Employer Identification No.)

804 Carnegie Center, Princeton, New Jersey
(Address of principal executive offices)

08540
(Zip Code)

(609) 524-4500

(Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class

Name of Exchange on Which Registered

Common Stock, par value $0.01

New York Stock Exchange

     Securities registered pursuant to Section 12(g) of the Act:
None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes 

    No 

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act.    Yes 

    No 

Indicate by check mark whether the registrant (1) has filed all reports to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 
12 months  (or  for  such  shorter  period  that  the  registrant  was  required  to  file  such  reports),  and  (2) has  been  subject  to  such  filing  requirements  for  the  past 
90 days.    Yes 

    No 

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be 
submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant 
was required to submit and post such files).    Yes 

    No 

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not contained herein, and will not 
be contained, to the best of the registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any 
amendment to this Form 10-K.    

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or emerging 
growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of 
the Exchange Act.

Large accelerated filer 

Accelerated filer 

Non-accelerated filer 

Smaller reporting company 

(Do not check if a smaller reporting
company)

Emerging growth company 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any 

new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. 

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    Yes 

    No 

As of the last business day of the most recently completed second fiscal quarter, the aggregate market value of the common stock of the registrant held 

by non-affiliates was approximately $4,880,501,096 based on the closing sale price of $17.22 as reported on the New York Stock Exchange.

Indicate the number of shares outstanding of each of the registrant's classes of common stock as of the latest practicable date.

Class
Common Stock, par value $0.01 per share

Outstanding at January 31, 2018
317,637,917

Documents Incorporated by Reference:
Portions of the Registrant's definitive Proxy Statement relating to its 2018 Annual Meeting of Stockholders
are incorporated by reference into Part III of this Annual Report on Form 10-K

1

Stockholder information 

STOCK TRANSFER AGENT AND REGISTRAR 

Shareholder correspondence should be mailed to:  
Computershare  
P.O. BOX 505000 
Louisville, KY 40233-5000

STOCKHOLDER INQUIRIES 

Overnight correspondence should be sent to:  
Computershare  
462 South 4th Street, Suite 1600 
Louisville, KY 40202 

1.866.214.2213

Email: shareholder@computershare.com

Online inquires: https://www-us.computershare.com/investor/Contact

Website: www.computershare.com/investor 

Send certificates for transfer and address changes to: 
Computershare  
P.O. BOX 505000 
Louisville, KY 40233-5000

STOCK LISTING 
NRG’s common stock is listed on the New York Stock Exchange  
under the ticker symbol NRG.

FINANCIAL INFORMATION 
NRG’s Annual Report on Form 10-K, Proxy Statement and other SEC Filings  
are available at www.nrg.com under the Investors section. 

 
 
 
 
TABLE OF CONTENTS

Glossary of Terms

GLOSSARY OF TERMS

PART I
  Item 1 — Business
  Item 1A — Risk Factors Related to NRG Energy, Inc. 
  Item 1B — Unresolved Staff Comments
  Item 2 — Properties
  Item 3 — Legal Proceedings
  Item 4 — Mine Safety Disclosures
PART II

Item 5 — Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity 
Securities

Item 6 — Selected Financial Data

Item 7 — Management's Discussion and Analysis of Financial Condition and Results of Operations

Item 7A — Quantitative and Qualitative Disclosures About Market Risk
Item 8 — Financial Statements and Supplementary Data

Item 9 — Changes in and Disagreements With Accountants on Accounting and Financial Disclosure

Item 9A — Controls and Procedures

Item 9B — Other Information

PART III

Item 10 — Directors, Executive Officers and Corporate Governance

Item 11 — Executive Compensation

Item 12 — Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Item 13 — Certain Relationships and Related Transactions, and Director Independence

Item 14 — Principal Accounting Fees and Services

PART IV

Item 15 — Exhibits, Financial Statement Schedules

Item 16 — Form 10-K Summary

EXHIBIT INDEX

3

10

10

34

53

54

58

58

59

59

61

62

112
116

116

116

118

119

119

122

122

122

123

124

124

239

228

2

        When the following terms and abbreviations appear in the text of this report, they have the meanings indicated below:

2023 Term Loan Facility

The Company's $1.9 billion term loan facility due 2023, a component of the Senior Credit
Facility

AEP

American Electric Power

Adjusted EBITDA

Adjusted earnings before interest, taxes, depreciation and amortization

ARO

ASC

ASU

Asset Retirement Obligation

The FASB Accounting Standards Codification, which the FASB established as the source of 
authoritative GAAP

Accounting Standards Updates – updates to the ASC

August 2017 Drop Down
Assets

Average realized prices

The remaining 25% interest in NRG Wind TE Holdco, which was sold to NRG Yield, Inc.
on August 1, 2017

Volume-weighted average power prices, net of average fuel costs and reflecting the impact
of settled hedges

AZNMSNV

Backlog

BACT

Bankruptcy Code

Bankruptcy Court

Baseload

BETM

BTU

Business Solutions

CAA

CAIR

CAISO

Carlsbad

CASPR

CCF

CDD

CDWR

CEC

CenterPoint

CFTC

Chapter 11 Cases

C&I

CES

Cleco

CO2
CO2e
COD

ComEd

Company

CPP
CPS

Arizona, New Mexico and Southern Nevada

Projects that are under construction, contracted, or awarded and represents a higher level of
execution certainty
Best Available Control Technology

Chapter 11 of Title 11 of the U.S. Bankruptcy Code

United States Bankruptcy Court for the Southern District of Texas, Houston Division

Units expected to satisfy minimum baseload requirements of the system and produce
electricity at an essentially constant rate and run continuously

Boston Energy Trading and Marketing LLC

British Thermal Unit

NRG's business solutions group, which includes demand response, commodity sales,
energy efficiency and energy management services

Clean Air Act

Clean Air Interstate Rule

California Independent System Operator

Carlsbad Energy Center, a 527 MW natural gas fired project located in Carlsbad, CA

Competitive Auctions with Sponsored Resources
Carbon Capture Facility

Cooling Degree Day

California Department of Water Resources

California Energy Commission

CenterPoint Energy Houston Electric, LLC

U.S. Commodity Futures Trading Commission

Voluntary cases commenced by the GenOn Entities under the Bankruptcy Code in the
Bankruptcy Court

Commercial, industrial and governmental/institutional

Clean Energy Standard

Cleco Energy LLC
Carbon Dioxide

Carbon Dioxide Equivalents

Commercial Operation Date

Commonwealth Edison

NRG Energy, Inc.

Clean Power Plan
Combined Pollutant Standard

3

 
 
 
 
 
 
CPUC

CSAPR

CVSR

CWA

D.C. Circuit

DGPV Holdco 1

DGPV Holdco 2

DGPV Holdco 3

Distributed Solar

DNREC

Dominion

Drop Down Assets

California Public Utilities Commission

Cross-State Air Pollution Rule

California Valley Solar Ranch

Clean Water Act

U.S. Court of Appeals for the District of Columbia Circuit

NRG DGPV Holdco 1 LLC

NRG DGPV Holdco 2 LLC

NRG DGPV Holdco 3 LLC

Solar  power  projects  that  primarily  sell  power  to  customers  for  usage  on  site,  or  are 
interconnected to sell power into a local distribution grid

Delaware Department of Natural Resources and Environmental Control

Dominion Resources, Inc.

Collectively, the  June  2014  Drop  Down Assets, the  January  2015  Drop  Down Assets, the 
November 2015 Drop Down Assets, the September 2016 Drop Down Assets, the March 2017 
Drop Down Assets, the August 2017 Drop Down Assets, and the November 2017 Drop Down 
Assets

DSI

DSU

Dry Sorbent Injection 

Deferred Stock Unit

Economic gross margin

Sum of energy revenue, capacity revenue, retail revenue and other revenue, less cost of fuels 
and other cost of sales

El Segundo Energy Center

NRG West Holdings LLC, the subsidiary of Natural Gas Repowering LLC, which owns the 
El Segundo Energy Center project

EME

EMAAC

Edison Mission Energy

Eastern Mid-Atlantic Area Council

Energy Plus Holdings

Energy Plus Holdings LLC

EPA

EPC

EPSA

ERCOT

ERISA

ESP

ESPP

ESPS

EWG

U.S. Environmental Protection Agency

Engineering, Procurement and Construction

The Electric Power Supply Association

The Employee Retirement Income Security Act of 1974

Electrostatic Precipitator

NRG Energy, Inc. Amended and Restated Employee Stock Purchase Plan

Existing Source Performance Standards

Exempt Wholesale Generator

Exchange Act

The Securities Exchange Act of 1934, as amended

FASB

FERC

FGD

FPA

Fresh Start

FTRs

GAAP

GenConn

GenOn

Financial Accounting Standards Board

Federal Energy Regulatory Commission

Flue gas desulfurization

Federal Power Act

Reporting requirements as defined by ASC-852, Reorganizations

Financial Transmission Rights

Accounting principles generally accepted in the U.S.

GenConn Energy LLC

GenOn Energy, Inc.

GenOn Americas Generation

GenOn Americas Generation, LLC

GenOn Americas Generation
Senior Notes

GenOn Americas Generation's $695 million outstanding unsecured senior notes consisting of 
$366 million of 8.5% senior notes due 2021 and $329 million of 9.125% senior notes due 
2031

GenOn Entities

GenOn Mid-Atlantic

GenOn Senior Notes

GenOn and certain of its wholly owned subsidiaries, including GenOn Americas Generation, 
that  filed  voluntary  petitions  for  relief  under  Chapter  11  of  the  Bankruptcy  Code  in  the 
Bankruptcy Court on June 14, 2017

GenOn Mid-Atlantic, LLC and, except where the context indicates otherwise, its subsidiaries, 
which include the coal generation units at two generating facilities under operating leases

GenOn's $1.8 billion outstanding unsecured senior notes consisting of $691 million of 7.875% 
senior  notes  due  2017,  $649  million  of  9.5%  senior  notes  due  2018,  and  $489  million  of 
9.875% senior notes due 2020

GHG

GIP

Greenhouse Gas

Global Infrastructure Partners

Green Mountain Energy

Green Mountain Energy Company

GW

GWh

HAP

HDD

Heat Rate

HLBV

IASB

IFRS

IPA

IPPNY

ISO

ISO-NE

ITC

Gigawatt

Gigawatt Hour

Hazardous Air Pollutant

Heating Degree Day

A measure of thermal efficiency computed by dividing the total BTU content of the fuel burned 
by the resulting kWhs generated. Heat rates can be expressed as either gross or net heat rates, 
depending whether the electricity output measured is gross or net generation and is generally 
expressed as BTU per net kWh

Hypothetical Liquidation at Book Value

International Accounting Standards Board

International Financial Reporting Standards

Illinois Power Agency

Independent Power Producers of New York

Independent System Operator, also referred to as RTOs

ISO New England Inc.

Investment Tax Credit

January 2015 Drop Down
Assets

The Laredo Ridge, Tapestry and Walnut Creek projects, which were sold to NRG Yield,
Inc. on January 2, 2015

kWh

LaGen

LIBOR

LSE

LTIPs

LTSA

MAAC

Kilowatt-hour

Louisiana Generating LLC

London Inter-Bank Offered Rate

Load Serving Entities

Collectively, the NRG LTIP and the NRG GenOn LTIP

Long-Term Service Agreement

Mid-Atlantic Area Council

March 2017 Drop Down Assets

(i) 16% interest in the Agua Caliente solar project and (ii) NRG's interests in seven utility-
scale solar projects located in Utah, which were sold to NRG Yield, Inc. on March 27, 2017

Marsh Landing

Mass Market

MATS

MDE

MDth

Merger

Merger Agreement

NRG Marsh Landing, LLC (formerly known as GenOn Marsh Landing, LLC)

Residential and small commercial customers

Mercury and Air Toxics Standards promulgated by the EPA

Maryland Department of the Environment

Thousand Dekatherms

The merger completed on December 14, 2012 by NRG and GenOn pursuant to the Merger
Agreement

The agreement by and among NRG, GenOn and Plus Merger Corporation, dated as of July
20, 2012

Electric  Reliability  Council  of  Texas,  the  Independent  System  Operator  and  the  regional 
reliability coordinator of the various electricity systems within Texas

June 2014 Drop Down Assets

The High Desert, Kansas South and El Segundo Energy Center projects, which were sold to
NRG Yield, Inc. on June 30, 2014

4

5

 
 
 
 
 
 
Midwest Generation

Midwest Generation, LLC

MISO

MMBtu

MOPR

MSU

MW

MWh

MWt

NAAQS

NEPGA

NEPOOL

NERC

Net Capacity Factor

Net Exposure

Net Generation

NJDEP
NOL

NOV

November 2015 Drop Down
Assets
November 2017 Drop Down
Assets
NOx
NPDES
NPNS

NQSO

NRC

NRG

Midcontinent Independent System Operator, Inc.

Million British Thermal Units

Minimum Offer Price Rule

Market Stock Unit

Megawatts

Saleable megawatt hour net of internal/parasitic load megawatt-hour

Megawatts Thermal Equivalent

National Ambient Air Quality Standards

New England Power Generators Association

New England Power Pool

North American Electric Reliability Corporation

The net amount of electricity that a generating unit produces over a period of time divided by 
the net amount of electricity it could have produced if it had run at full power over that time 
period. The net amount of electricity produced is the total amount of electricity generated 
minus the amount of electricity used during generation

Counterparty credit exposure to NRG, net of collateral

The net amount of electricity produced, expressed in kWhs or MWhs, that is the total amount 
of electricity generated (gross) minus the amount of electricity used during generation

New Jersey Department of Environmental Protection

Net Operating Loss

Notice of Violation

75% of the Class B interests of NRG Wind TE Holdco, which owns a portfolio of 12 wind 
facilities totaling 814 net MW
A 38 MW solar portfolio primarily comprised of assets from SPP funds, in addition to other
projects developed by NRG, which were sold to NRG Yield, Inc. on November 1, 2017

Nitrogen Oxides

National Pollutant Discharge Elimination System
Normal Purchase Normal Sale

Non-Qualified Stock Option

U.S. Nuclear Regulatory Commission

NRG Energy, Inc.

NRG GenOn LTIP

NRG 2010 Stock Plan for GenOn Employees (formerly the GenOn Energy, Inc. 2010 Omnibus 
Incentive Plan, which was assumed by NRG in connection with the Merger)

NRG LTIP

NRG Energy, Inc. Amended and Restated Long-Term Incentive Plan

NRG Wind TE Holdco

NRG Wind TE Holdco LLC

NRG Yield

Reporting segment including the projects owned by NRG Yield, Inc.

NRG Yield 2019 Convertible
Notes

$345 million aggregate principal amount of 3.50% Convertible Senior Notes due 2019
issued by NRG Yield, Inc.

NRG Yield 2020 Convertible
Notes

$287.5 million aggregate principal amount of 3.25% Convertible Notes due 2020 issued by
NRG Yield, Inc.

NRG Yield, Inc.

NRG Yield Operating 2024
Senior Notes

NRG Yield Operating 2026
Senior Notes

NRG Yield LLC

NRG Yield, Inc., the owner of 53.7% of the economic interests of NRG Yield LLC with a 
controlling interest, and issuer of publicly held shares of Class A and Class C common stock

NRG Yield Operating LLC's $500 million of 5.375% unsecured senior notes due 2024

NRGY Yield Operating LLC's $350 million of 5.00% unsecured senior notes due 2026

NRG Yield LLC, which owns, through its wholly owned subsidiary, NRG Yield Operating 
LLC, all of the assets set forth in the NRG Yield segment

NSPS
NSR

New Source Performance Standards
New Source Review

6

Nuclear Decommissioning
Trust Fund

Nuclear Waste Policy Act

NYAG

NYISO

NYMEX

NYSPSC
OCI/OCL

Peaking

PER

Petition Date

Pipeline

PJM

PPA

PSD

PSU

PTC

PUCT

PUHCA

PURPA

QF

RCRA

Reliant Energy

REMA

Restructuring Support
Agreement

Retail

Revolving Credit Facility

RFP

RGGI

RMR

ROFO

ROFO Agreement

RPM

RPS

RPSU

RPV Holdco

RSU

RTO

NRG's nuclear decommissioning trust fund assets, which are for the Company's portion of
the decommissioning of the STP, units 1 & 2

U.S. Nuclear Waste Policy Act of 1982

State of New York Office of Attorney General
New York Independent System Operator

New York Mercantile Exchange

New York State Public Service Commission
Other Comprehensive Income/(Loss)

Units expected to satisfy demand requirements during the periods of greatest or peak load
on the system
Peak Energy Rent

June 14, 2017

Projects that range from identified lead to shortlisted with an offtake, and represents a
lower level of execution certainty
PJM Interconnection, LLC

Power Purchase Agreement

Prevention of Significant Deterioration

Performance Stock Unit

Production Tax Credit

Public Utility Commission of Texas

Public Utility Holding Company Act of 2005

Public Utility Regulatory Policies Act of 1978

Qualifying Facility under PURPA

Resource Conservation and Recovery Act of 1976

Reliant Energy Retail Services, LLC

NRG REMA LLC, which leases a 100% interest in the Shawville generating facility and 16.7% 
and 16.5% interests in the Keystone and Conemaugh generating facilities, respectively

Restructuring Support and Lock-Up Agreement, dated as of June 12, 2017 and as amended 
on October 2, 2017, by and among GenOn Energy, Inc., GenOn Americas Generation, LLC, 
and subsidiaries signatory thereto, NRG Energy, Inc. and the noteholders signatory thereto

Reporting segment that includes NRG's residential and small commercial businesses which 
go to market as Reliant, NRG and other brands owned by NRG, as well as Business Solutions

The Company's $2.5 billion revolving credit facility, a component of the Senior Credit Facility.  
The revolving credit facility consists of $289 million of Tranche A Revolving Credit Facility, 
due 2018, and $2.2 billion of Tranche B Revolving Credit Facility, due 2021

Prior  to  June  30,  2016,  the  Company's  $2.5  billion  revolving  credit  facility  due  2018,  a 
component of the Senior Credit Facility.  On June 30, 2016, the Company replaced the Senior 
Credit Facility, including the Revolving Credit Facility

Request For Proposal

Regional Greenhouse Gas Initiative

Reliability Must-Run

Right of First Offer

Second Amended and Restated Right of First Offer Agreement by and between NRG
Energy, Inc. and NRG Yield, Inc.
Reliability Pricing Model

Renewable Portfolio Standards

Relative Performance Stock Unit

NRG RPV Holdco 1 LLC

Restricted Stock Unit

Regional Transmission Organization

7

 
 
 
 
 
 
RTR

SCE

SCR

SDG&E

SEC

Securities Act

Senior Credit Facility

Senior Notes

Services Agreement

Settlement Agreement

September 2016 Drop Down
Assets
SIFMA

SNF

SO2
South Central

SPP

S&P
STP

STPNOC

Tax Act

TCPA

Term Loan Facility

Texas Genco

Thermal Business

TSA

TSR

TVA

TWCC

TWh

UNFCCC
UPMC

U.S.
U.S. DOE

Renewable Technology Resource

Southern California Edison Company

Selective Catalytic Reduction Control System

San Diego Gas & Electric

U.S. Securities and Exchange Commission

The Securities Act of 1933, as amended

NRG's senior secured credit facility, comprised of the Revolving Credit Facility and the 2023 
Term Loan Facility

Prior to June 30, 2016, the Company's senior secured facility, comprised of the Term Loan 
Facility and the Revolving Credit Facility.  On June 30, 2016, the Company replaced the Senior 
Credit Facility with the 2016 Senior Credit Facility

As of December 31, 2017, NRG's $4.8 billion outstanding unsecured senior notes consisting 
of $992 million of 6.25% senior notes due 2022, $733 million of 6.25% senior notes due 2024, 
$1.0 billion of the 7.25% senior notes due 2026, $1.25 billion of the 6.625% senior notes due 
2027, and $870 million of 5.75% senior notes due 2028

NRG provided GenOn with various management, personnel and other services, which
include human resources, regulatory and public affairs, accounting, tax, legal, information
systems, treasury, risk management, commercial operations, and asset management, as set
forth in the services agreement with GenOn

A settlement agreement and any other documents necessary to effectuate the settlement
among NRG, GenOn, and certain holders of senior unsecured notes of GenOn Americas
Generations and GenOn, and certain of GenOn's direct and indirect subsidiaries

The CVSR Holdco interest, which was sold to NRG Yield, Inc. on September 1, 2016

Securities Industry and Financial Markets Association

Spent Nuclear Fuel

Sulfur Dioxide

NRG's South Central business, which owns and operates a 3,555 MW portfolio of generation 
assets consisting of 225 MW Bayou Cove, 430 MW Big Cajun-I, 1,461 MW Big Cajun-II, 
1,263 MW Cottonwood and 176 MW Sterlington, and serves a customer base of cooperatives, 
municipalities and regional utilities under load contracts.

Solar Power Partners

Standard & Poor's

South Texas Project — nuclear generating facility located near Bay City, Texas in which
NRG owns a 44% interest

South Texas Project Nuclear Operating Company

The Tax Cuts and Jobs Act of 2017

Telephone Consumer Protection Act

Prior to June 30, 2016, the Company's $2.0 billion term loan facility due 2018.

Texas Genco LLC

NRG Yield, Inc.’s thermal business, which consists of thermal infrastructure assets that provide 
steam,  hot  water  and/or  chilled  water,  and  in  some  instances  electricity,  to  commercial 
businesses, universities, hospitals and governmental units
Transportation Services Agreement

Total Shareholder Return

Tennessee Valley Authority

Texas Westmoreland Coal Co.

Terawatt Hour

United Nations Framework Convention on Climate Change

University of Pittsburgh Medical Center

United States of America
U.S. Department of Energy

8

Utility-Scale Solar

Solar power projects, typically 20 MW or greater in size (on an alternating current basis), that 
are interconnected into the transmission or distribution grid to sell power at a wholesale level

VaR

VCP

VIE

WECC

WST

Value at Risk

Voluntary Clean-Up Program

Variable Interest Entity

Western Electricity Coordinating Council

Washington-St. Tammany Electric Cooperative, Inc.

Yield Operating

NRG Yield Operating LLC

9

 
 
 
 
 
 
 PART I

Transformation Plan

Item 1 — Business

General

NRG Energy, Inc., or NRG or the Company, is a leading integrated power company built on the strength of a diverse 
competitive electric generation portfolio and leading retail electricity platform.  NRG aims to create a sustainable energy future 
by producing, selling and delivering electricity and related products and services in major competitive power markets in the 
U.S. in a manner that delivers value to all of NRG's stakeholders. The Company owns and operates approximately 30,000 MW 
of  generation;  engages  in  the  trading  of  wholesale  energy,  capacity  and  related  products;  transacts  in  and  trades  fuel  and 
transportation services; and directly sells energy, services, and innovative, sustainable products and services to retail customers 
under the names “NRG”, "Reliant" and other retail brand names owned by NRG. NRG was incorporated as a Delaware corporation 
on May 29, 1992.

Strategy

NRG's strategy is to maximize stockholder value through the safe production and sale of reliable power to its customers 
in the markets served by the Company, while positioning the Company to provide fully integrated solutions to the end-use energy 
consumer. This strategy is intended to enable the Company to create and maintain growth at reasonable margins while de-risking 
the Company in terms of reduced and mitigated exposure to cyclical commodity price risk. At the same time, the Company's 
relentless commitment to safety for its employees, customers and partners continues unabated.

To effectuate the Company’s strategy, NRG is focused on: (i) excellence in operating performance of its existing assets 
including repowering its power generation assets at premium sites and optimal hedging of generation assets and retail load 
operations; (ii) serving the energy needs of end-use residential, commercial and industrial customers in competitive markets 
through multiple brands and channels with a variety of retail energy products and services differentiated by innovative features, 
premium service, sustainability, and loyalty/affinity programs; (iii) deploying innovative and renewable energy solutions for 
consumers within its retail businesses; and (iv) engaging in a proactive capital allocation plan focused on achieving the regular 
return of and on stockholder capital within the dictates of prudent balance sheet management, including reducing consolidated 
debt and pursuing selective acquisitions, joint ventures, divestitures and investments. 

NRG is in the process of executing its Transformation Plan, which is designed to significantly strengthen earnings and 
cost competitiveness, lower risk and volatility, and create significant shareholder value. The Company expects to fully implement 
the Transformation Plan by the end of 2020 with significant completion by the end of 2018. The three-part, three-year plan is 
comprised of the following targets and the Company's progress toward achieving such targets are as follows:

Operations and cost excellence
Cost savings and margin enhancement of $1,065 million recurring, which consists of $590 million of annual cost savings, a 
$215 million net margin enhancement program, $50 million annual reduction in maintenance capital expenditures, and $210 
million in permanent selling, general and administrative expense reduction associated with asset sales.

• During the year ended December 31, 2017, the Company realized annual cost savings of $150 million.

Portfolio optimization
Targeting  up  to  $3.2  billion  of  asset  sale  cash  proceeds,  including  divestitures  of  6  GWs  of  conventional  generation  and 
businesses (excluding GenOn) and the expected monetization of 100% of its interest in NRG Yield, Inc. and its renewables 
platform.

• On February 6, 2018, NRG announced agreements to sell (i) NRG's full ownership interest in NRG Yield, Inc. and NRG's 
renewables platform, a 3,440 MW portfolio, for cash of $1.375 billion, subject to certain adjustments; and (ii) NRG's 
South Central business, a 3,555 MW portfolio of generation assets, for cash of $1.0 billion, subject to certain adjustments. 
The transactions are subject to customary closing conditions and are expected to close in the second half of 2018.

• Also on February 6, 2018, NRG entered into agreements with NRG Yield, Inc. to sell Carlsbad Energy Center, a 527 
MW natural gas fired project, for cash of $365 million, subject to certain adjustments, and Buckthorn Solar, a 154 MW 
solar facility, for cash of $42 million, subject to certain adjustments. 

• On February 23, 2018, NRG entered into an agreement to sell BETM for $70 million. The transaction is subject to 
customary closing conditions and is expected to close in the second half of 2018.

• In 2017, NRG executed asset sales of 322 MW for aggregate cash of $150 million, which includes sales to NRG Yield, 
Inc. and sale of Minnesota wind projects to third parties.

Capital structure and allocation enhancement
A prioritized capital allocation strategy that targets a reduction in consolidated debt from approximately $19.5 billion ($18 
billion net debt) to approximately $6.5 billion ($6 billion net debt). Following the completion of the contemplated asset sales, 
the Company expects approximately $5.3 billion in excess cash to be available for allocation through 2020, after achieving its 
targeted 3.0x net debt / Adjusted EBITDA corporate credit ratio.

• During 2017, NRG reduced its net corporate debt by $604 million. 

•  Expected  reduction  in  non-recourse  debt  related  to  the  sale  of  NRG's  ownership  in  NRG Yield,  Inc.  and  the  NRG 
renewables platform and the sales of Carlsbad Energy Center and Buckthorn Solar, which represented $7.1 billion as of 
December 31, 2017.

Working Capital and Costs to Achieve

The  Company  expects  to  realize  (i)  $370  million  of  non-recurring  working  capital  improvements  through  2020,  and  (ii) 
approximately $290 million one-time costs to achieve. 

• During 2017, NRG realized $221 million of working capital improvements and $44 million of one-time costs to achieve.

10

11

 
 
 
 
 
 
 
Business Overview

As of December 31, 2017, the Company’s core businesses include (i) wholesale conventional generation, (ii) retail electricity 
for residential and commercial, including personal power solutions and Business Solutions, which includes C&I customers and 
other distributed and reliability products (included in the Retail segment, effective in January 2017), (iii) contracted generation 
owned by NRG Yield, Inc. (included in the NRG Yield segment) and (iv) renewable utility scale and distributed generation 
assets that are constructed or in development and that are not otherwise owned by NRG Yield, Inc. (included in the Renewables 
segment). On June 14, 2017, NRG deconsolidated GenOn for financial reporting purposes as a result of the GenOn bankruptcy 
filings.

Generation

The  Company’s  wholesale  power  generation  business  includes  plant  operations,  commercial  operations,  EPC,  energy 
services and other critical related functions. In addition to the traditional functions, the wholesale power generation business 
also includes NRG’s conventional distributed generation business, consisting of reliability, combined heat and power and large-
scale distributed generation. 

The wholesale generation business is capital-intensive and commodity-driven with numerous industry participants that 
compete on the basis of the location of their plants, fuel mix, plant efficiency and the reliability of the services offered. The 
Company has a diversified power generation portfolio, with approximately 28,000 MW of fossil fuel and nuclear generation 
capacity at 51 plants as of December 31, 2017.  The Company's power generation assets are diversified by fuel-type, dispatch 
level and region, which helps mitigate the risks associated with fuel price volatility and market demand cycles.  NRG's U.S. 
baseload and intermediate facilities provide the Company with a significant source of cash flow, while its peaking facilities 
provide NRG with opportunities to capture significant upside potential that can arise during periods of high demand, which 
typically drive higher energy prices. As of December 31, 2017, less than 25% of the Company's consolidated operating revenues 
were derived from coal-fired operating assets. As noted above, the Company expects to sell its 3,555 MW South Central business 
in the second half of 2018.

Wholesale power generation is a regional business that is currently highly fragmented and diverse in terms of industry 
structure. As such, there is a wide variation in terms of the capabilities, resources, nature and identities of the companies the 
Company competes with depending on the market. Competitors include regulated utilities, municipalities, cooperatives, other 
independent power producers, and power marketers or trading companies, including those owned by financial institutions.  Many 
of the Company's generation assets, however, are located within densely populated areas that tend to have higher wholesale 
pricing as a result of relatively favorable local supply-demand balance.  The Company has generation assets located in or near 
major metropolitan areas. The Company believes that its extensive generation portfolio provides asset optimization opportunities. 
The Company currently has over 500 MW targeted for repowering initiatives, all of which are under development or construction. 
In addition, the Company evaluates opportunities for new generation, on both a merchant and contracted basis.

Retail 

Retail provides energy and related services to residential, industrial and commercial consumers through various brands 
and sales channels across the U.S. In 2017, Retail delivered approximately 63 TWhs and served approximately 2.9 million
customers. Retail's results make it one of the largest competitive energy retailers in the U.S. The majority of Retail's sales come 
in the competitive retail energy markets of Texas, Pennsylvania, Connecticut, Delaware, Illinois, Maryland, Massachusetts, New 
Jersey, New York and Ohio, as well as the District of Columbia. Retail's brands collectively are the largest providers of electricity 
in Texas.

Residential  and  small  commercial  (Mass  Market)  consumers  make  purchase  decisions  based  on  a  variety  of  factors, 
including price, customer service, brand, product choices and value-added features.  These consumers purchase products through 
a variety of sales channels, including direct sales, call centers, websites, brokers and brick-and-mortar stores.  Through its broad 
range  of  service  offerings  and  value  propositions,  Retail  is  able  to  attract,  retain,  and  increase  the  value  of  its  customer 
relationships. Retail's brands are recognized for exemplary customer service, innovative smart energy and technology product 
offerings and environmentally friendly solutions. 

Included in Retail is the Company's Business Solutions group, which includes demand response, commodity sales, energy 
efficiency  and  energy  management  solutions. An  integrated  provider  of  supply  and  distributed  energy  resources,  Business 
Solutions focuses on distributed products and services as businesses seek greater reliability, cleaner power or other benefits that 
they cannot obtain from the grid.  These solutions include system power, distributed generation, solar and wind products, carbon 
management and specialty services, backup generation, storage and distributed solar, demand response and energy efficiency 
and advisory services. In providing on-site energy solutions, the Company often benefits from its ability to supply energy products 
from its wholesale generation portfolio to commercial and industrial retail customers. In 2017, Business Solutions delivered 
approximately 21 TWhs of electricity and managed approximately 1,500 MWs of demand response positions across its portfolio.

Renewables and NRG Yield

As described above, NRG expects to sell its Renewables operating and development platform and its full ownership interest 
in NRG Yield, Inc. in the second half of 2018. The following description reflects the historical view of these businesses as a 
part of NRG’s business strategy through its announcement of the Transformation Plan in 2017. 

Renewables

The Company’s renewables business focuses on the acquisition, development and operation and maintenance of utility 
scale wind and solar, community solar and distributed solar generation assets as well as the management and operations of the 
renewable generation assets owned by NRG Yield, Inc. In 2017, the Company acquired 209 MW of utility scale solar and wind 
projects and 82 MW of distributed generation and community solar projects that are currently under development or in operation 
across three states.  The renewables business has in-house expertise that covers the full spectrum of development capabilities 
to execute on utility, distributed generation, and community solar projects. The asset management and operations and maintenance 
groups within the renewables business manage a portfolio of wind and solar assets across 27 states, serving as the primary 
commercial asset manager on the vast majority of assets owned by NRG and NRG Yield, Inc. In addition, the operations and 
maintenance group self-performs plant operations on 2,689 MW of the consolidated fleet of assets owned by NRG and NRG 
Yield, Inc. and 224 MW of assets owned by third parties.

The utility wind and solar generation business targets strategic partnerships with utilities, municipalities and large national 
corporations  for  offsite  wind  and  solar  solutions.  The  distributed  solar  business  targets  partnerships  with  companies, 
municipalities,  schools  and  communities  to  provide  on-site  and  virtual  net  metering  off-site  renewable  generation.    The 
community solar business targets relationships with companies and municipalities as well as residential homeowners to provide 
off-site solar generation under community solar regulations and tariffs. In addition to assets in operation, as of December 31, 
2017, the Company held a backlog of in-construction, contracted and awarded projects of 1,500 MW, and a pipeline of 5,742 
MW across the utility, community solar and distributed solar renewables markets. 

The renewables business also competes for new generation opportunities through both RFPs and bilateral solicitations. 
The renewables business selects markets and projects based on resource relative to the value of the power, while seeking to 
make use of NRG capabilities in a competitive landscape. The number and type of competitors vary based on location, generation 
type, project size and counterparty.  The renewables business competes with traditional utilities as well as companies that provide 
products and services in the downstream solar and wind energy value chains. 

NRG Yield

NRG Yield, Inc. is a publicly-traded, dividend growth-oriented company that has historically served as the primary vehicle 
through which NRG owns, operates and acquires diversified contracted renewable and conventional generation and thermal 
infrastructure assets.  As of December 31, 2017, NRG owns a 55.1% voting interest in the outstanding common stock of NRG 
Yield, Inc. and receives distributions from NRG Yield LLC through its 46.3% ownership of Class B and Class D units. NRG 
Yield, Inc.’s contracted generation portfolio collectively represents 5,118 net MW as of December 31, 2017. Each of the assets 
sells most of its output pursuant to long-term, fixed-price offtake agreements with creditworthy counterparties. NRG Yield, Inc. 
also  owns  thermal  infrastructure  assets  with  an  aggregate  steam  and  chilled  water  capacity  of  1,319  net  MWt  and  electric 
generation capacity of 123 net MW. These thermal infrastructure assets provide steam, hot water and/or chilled water, and in 
some  instances  electricity,  to  commercial  businesses,  universities,  hospitals  and  governmental  units  in  multiple  locations, 
principally through long-term contracts or pursuant to rates regulated by state utility commissions.

12

13

 
 
 
 
 
 
GenOn Chapter 11 Cases

NRG Operations

The NRG businesses described above are supported through the NRG operational infrastructure, which begins with the 
Company’s asset fleet and the associated commercial and retail operations.  The images below illustrate NRG's U.S. power 
generation, net capacity and retail capabilities as of December 31, 2017: 

As disclosed in Item 15 - Note 1, Nature of Business, to the Consolidated Financial Statements, on June 14, 2017, or the 
Petition Date, GenOn, along with GenOn Americas Generation and certain of their directly and indirectly-owned subsidiaries, 
or collectively the GenOn Entities, filed voluntary petitions for relief under Chapter 11, or the Chapter 11 Cases, of the U.S. 
Bankruptcy Code, or the Bankruptcy Code, in the U.S. Bankruptcy Court for the Southern District of Texas, Houston Division, 
or the Bankruptcy Court. GenOn Mid-Atlantic, as well as its consolidated subsidiaries, REMA and certain other subsidiaries, 
did not file for relief under Chapter 11.

As a result of the bankruptcy filings and beginning on June 14, 2017, GenOn and its subsidiaries were deconsolidated 
from NRG’s consolidated financial statements. NRG recorded its investment in GenOn under the cost method with an estimated 
fair value of zero. NRG determined that this disposal of GenOn and its subsidiaries is a discontinued operation; and, accordingly, 
the financial information for all historical periods has been recast to reflect GenOn as a discontinued operation.  In connection 
with the disposal, NRG recorded a loss on deconsolidation of $208 million during the quarter ended June 30, 2017, which is 
included within the total loss from discontinued operations of $789 million for the year ended December 31, 2017. See Note 3, 
Discontinued Operations, Acquisitions and Dispositions, for more information. In addition, upon GenOn's emergence from 
bankruptcy, the Company will recognize an estimated $9.5 billion worthless stock deduction for tax purposes. 

On June 29, 2017, the GenOn Entities filed the initial plan of reorganization and the disclosure statement with the Bankruptcy 
Court consistent with the Restructuring Support Agreement. On September 18, 2017 and October 2, 2017, the GenOn Entities 
filed amendments to the plan of reorganization and the disclosure statement which primarily provided the GenOn Entities with 
the flexibility to complete sales of certain assets pursuant to the amended plan of reorganization and removed the GenOn Entities' 
requirement to conduct a rights offering in connection with the GenOn Entities' exit financing. 

On October 31, 2017, the GenOn Entities announced that they entered into a Consent Agreement with certain holders of 
GenOn’s Senior Notes and GenOn Americas  Generation's  Senior Notes, collectively, the Consenting Holders, whereby the 
GenOn Entities and the Consenting Holders agreed to extend the milestones in the Restructuring Support Agreement, by which 
the plan of reorganization must become effective, or the Effective Date.  Specifically, the Consent Agreement extended the 
Effective Date milestone to June 30, 2018 or September 30, 2018, if regulatory approvals are still pending, or the Extended 
Effective Dates.

On  December  12,  2017,  the  Bankruptcy  Court  entered  an  order  confirming  the  plan  of  reorganization,  and  effective 
December 12, 2017, GenOn and NRG entered into agreements concerning (i) timeline and transition, (ii) cooperation and co-
development matters, (iii) post-employment and retiree health and welfare benefits and pension benefits, (iv) tax matters, and 
(v) intercompany balances, consistent with the Restructuring Support Agreement, which among other things, provide for the 
transition of GenOn to a standalone enterprise, resolution of substantial intercompany claims between GenOn and NRG, and 
the allocation of certain costs and liabilities between GenOn and NRG. The principal terms of these agreements are described 
further in Note 3, Discontinued Operations, Acquisitions and Dispositions. On December 12, 2017, the Bankruptcy Court also 
entered an order giving effect to the Consent Agreement.

14

15

 
 
 
 
 
 
 
The following table summarizes NRG's global generation portfolio as of December 31, 2017: 

Commercial Operations Overview

Generation Type
Natural gas(g)
Coal

Oil

Nuclear
Wind(h)
Utility Scale Solar

Distributed Solar
Total generation capacity(i)
Capacity attributable to 
noncontrolling interest(i)
Total net generation capacity

Global Generation Portfolio(a)(b)
(In MW)

Generation
Gulf Coast(j) East/West (c)
4,939

7,464

Renewables (d)(k)
—

NRG Yield (e)(k) Other(f)(k)
—
1,878

5,114

—

1,136

—

—

—

3,870

3,642

—

—

—

—

13,714

12,451

—

13,714

—

12,451

—

—

—

648

738

179

1,565

(685)

880

—

190

—

2,206

921

52

5,247

(2,359)

2,888

—

—

—

—

—

114

114

—

114

Total Global

14,281

8,984

3,832

1,136

2,854

1,659

345

33,091

(3,044)

30,047

(a)  All Utility Scale Solar and Distributed Solar facilities are described in MW on an alternating current basis.  MW figures provided represent nominal 
summer net MW capacity of power generated as adjusted for the Company's owned or leased interest excluding capacity from inactive/mothballed units.

(b)  GenOn, which represented 16,423 MW of global generation at December 31, 2016, was deconsolidated from NRG for financial reporting purposes on 

June 14, 2017.

(c)  Includes International.

(d)  Includes Distributed Solar capacity from assets held by DGPV Holdco 1, DGPV Holdco 2 and DGPV Holdco 3. 

(e)  Does not include NRG Yield, Inc.'s thermal converted (MWt) capacity, which is part of the NRG Yield operating segment.

(f)  The Distributed Solar figure within "Other" includes the aggregate production capacity of installed and activated residential solar energy systems. Also 

includes capacity from operating portfolios of residential solar assets held by RPV Holdco.

(g)  Natural gas generation does not include 51 MW related to the Miramar and El Cajon sites which were part of the San Diego Combustion Turbines and 
retired on January 1, 2017, 106 MW related to Encina Unit 1 which was deactivated on March 31, 2017 and 371 MWs related to Greens Bayou 5 which 
was mothballed on May 29, 2017 following ERCOT's termination of the RMR agreement.  Greens Bayou 5 was retired in January 2018.

(h)   In 2017 and 2018, NRG sold 111 and 10 MWs, respectively, to third parties related to certain Minnesota wind assets. 

(i)   NRG Yield's total generation capacity includes 6 MWs for noncontrolling interest for Spring Canyon II and III. NRG Yield's total generation capacity net 

of this noncontrolling interest was 5,241 MWs.

(j)   On February 6, 2018, NRG announced the sale of its South Central business, which owns and operates a 3,555 MW portfolio of generation assets in Gulf 

Coast.  NRG will lease back the 1,263 MW Cottonwood facility.

(k)  On February 6, 2018, NRG announced the sale of its full ownership in NRG Yield, Inc. and its Renewables operating and development platform, which 

represents 3,440 MW.

NRG's portfolio diversification and commercial operations hedging strategy provides the Company with reliable future 
cash flows.  NRG has hedged a portion of its coal and nuclear capacity with decreasing hedge levels through 2021.  In addition, 
NRG's capacity revenues not only enhance the reliability of future cash flows but are not correlated to natural gas prices. As of 
December 31, 2017, the Company had purchased fuel forward under fixed price contracts, with contractually-specified price 
escalators, for approximately 41% of its expected coal requirement from 2018 to 2021.  The Company enters into additional 
hedges when it believes market conditions are favorable. 

The Company also has the advantage of being able to supply its retail businesses with its own generation, which can reduce 
the need to sell and buy power from other institutions and intermediaries, resulting in lower transaction costs and credit exposures.  
This combination of generation and retail allows for a reduction in actual and contingent collateral, through offsetting transactions 
and by reducing the need to hedge the retail power supply through third parties.  

The generation and retail combination also provides stability in cash flows, as changes in commodity prices generally have 
offsetting impacts between the two businesses.  The offsetting nature of generation and retail, in relation to changes in market 
prices, is an integral part of NRG's goal of providing a reliable source of future cash flow for the Company. 

When developing new renewable and conventional power generation facilities, NRG typically secures long-term PPAs, 
which insulate the Company from commodity market volatility and provide future cash flow stability.  These PPAs are typically 
contracted with high credit quality local utilities and typically have durations from 10 years to as much as 25 years.

NRG seeks to maximize profitability and manage cash flow volatility through the marketing, trading and sale of energy, 
capacity and ancillary services into spot, intermediate and long-term markets and through the active management and trading 
of emissions allowances, fuel supplies and transportation-related services.  The Company's principal objectives are the realization 
of the full market value of its asset base, including the capture of its extrinsic value, the management and mitigation of commodity 
market risk and the reduction of cash flow volatility over time.

NRG enters into power sales and hedging arrangements via a wide range of products and contracts, including PPAs, fuel 
supply contracts, capacity auctions, natural gas derivative instruments and other financial instruments. In addition, because 
changes in power prices in the markets where NRG operates are generally correlated to changes in natural gas prices, NRG uses 
hedging strategies that may include power and natural gas forward sales contracts to manage the commodity price risk primarily 
associated with the Company's coal and nuclear generation assets. The objective of these hedging strategies is to stabilize the 
cash flow generated by NRG's portfolio of assets. 

In addition to power sales and hedging arrangements, NRG trades electric power, natural gas and related commodity and 
financial products, including forwards, futures, options and swaps. The Company seeks to generate profits from volatility in the 
price of electricity, capacity, fuels and transmission congestion by buying and selling contracts in wholesale markets under 
guidelines approved by the Company's risk management committee. 

Coal and Nuclear Operations

The following table summarizes NRG's U.S. coal and nuclear capacity and the corresponding revenues and average natural 
gas prices and positions resulting from coal and nuclear hedge agreements extending beyond December 31, 2017, and through 
2021 for the Company's Gulf Coast region:

Gulf Coast

2018

2019

2020

2021

Annual
Average for
2018-2021

Net Coal and Nuclear Capacity (MW) (a)
Forecasted Coal and Nuclear Capacity (MW) (b)
Total Coal and Nuclear Sales (GWh) (c)
Percentage Coal and Nuclear Capacity Sold Forward (d)
Total Forward Hedged Revenues (e)
Weighted Average Hedged Price ($ per MWh) (e)
Average Equivalent Natural Gas Price ($ per MMBtu) (e) 

Gross Margin Sensitivities

(Dollars in millions unless otherwise stated)

6,250

4,558

33,394

6,250

4,402

8,203

6,250

4,303

7,348

6,250

4,114

7,977

6,250

4,344

14,231

84%

21%

19%

22%

37%

$ 1,399

$ 41.90

$ 3.17

$

$

$

$

422

$ 399

$ 429

51.47

$54.36

$53.74

4.47

$ 4.79

$ 5.01

134

$ 136

$ 138

$

$

$

$

$

$

$

—

—

—

—

—

—

—

Gas Price Sensitivity Up $0.50/MMBtu on Coal and Nuclear Units

$

5

Gas Price Sensitivity Down $0.50/MMBtu on Coal and Nuclear Units

$ — $

(150)

$ (148)

$ (126)

Heat Rate Sensitivity Up 1 MMBtu/MWh on Coal and Nuclear Units

Heat Rate Sensitivity Down 1 MMBtu/MWh on Coal and Nuclear Units

$

$

57

(38)

$

$

90

(74)

$

$

94

(78)

$

$

96

(79)

(a)  Net coal and nuclear capacity represents nominal summer net MW capacity of power generated as adjusted for the Company's current ownership position 

excluding capacity from inactive/mothballed units, see Item 2 - Properties for units scheduled to be deactivated.

(b)  Forecasted generation dispatch output (MWh) based on forward price curves as of December 31, 2017, which is then divided by number of hours in a 

(c) 

given year to arrive at MW capacity. The dispatch takes into account planned and unplanned outage assumptions.
Includes amounts under power sales contracts and natural gas hedges. The forward natural gas quantities are reflected in equivalent GWh based on forward 
market implied heat rate as of December 31, 2017, and then combined with power sales to arrive at equivalent GWh hedged.  The coal and nuclear sales 
include swaps and delta of options sold which is subject to change.  For detailed information on the Company's hedging methodology through use of 
derivative instruments, see discussion in Item 15 - Note 5, Accounting for Derivative Instruments and Hedging Activities, to the Consolidated Financial 
Statements.  Includes inter-segment sales from the Company's wholesale power generation business to the retail business.

(d)  Percentage hedged is based on total coal and nuclear sales as described in (c) above divided by the forecasted coal and nuclear capacity.
(e)  Represents U.S. coal and nuclear sales, including energy revenue and demand charges.

16

17

 
 
 
 
 
 
 
The following table summarizes NRG's U.S. coal capacity and the corresponding revenues and average natural gas prices 
and positions resulting from coal hedge agreements extending beyond December 31, 2017 and through 2021 for the East/West 
region:

East/West

2018

2019

2020

2021

Annual
Average for
2018-2021

Net Coal Capacity (MW) (a)
Forecasted Coal Capacity (MW) (b)
Total Coal Sales (GWh) (c)
Percentage Coal Capacity Sold Forward (d)
Total Forward Hedged Revenues (e)
Weighted Average Hedged Price ($ per MWh) (e)
Average Equivalent Natural Gas Price ($ per MMBtu) (e)

Gross Margin Sensitivities

Gas Price Sensitivity Up $0.50/MMBtu on Coal Units

Gas Price Sensitivity Down $0.50/MMBtu on Coal Units

Heat Rate Sensitivity Up 1 MMBtu/MWh on Coal Units

Heat Rate Sensitivity Down 1 MMBtu/MWh on Coal Units

(Dollars in millions unless otherwise stated)

3,267

1,579

12,520

3,267

1,456

1,521

3,267

1,258

644

3,267

881

46

3,267

1,294

3,683

91%

12%

6%

1%

27%

$

408

$

46

$

20

$

1

$

$ 32.60

$ 30.57

$ 30.68

$ — $

$

2.76

$

2.84

$

2.73

$ — $

$

$

$

$

47

(36)

31

(23)

$

$

$

$

113

(96)

66

(59)

$

$

$

$

114

(91)

64

(56)

$

$

$

$

118

(71)

66

(49)

$

$

$

$

—

—

—

—

—

—

—

(a)  Net coal capacity represents nominal summer net MW capacity of power generated as adjusted for the Company's current ownership position excluding 

capacity from inactive/mothballed units, see Item 2 - Properties for units scheduled to be deactivated.

(b)  Forecasted generation dispatch output (MWh) based on forward price curves as of December 31, 2017, which is then divided by number of hours in a 

given year to arrive at MW capacity. The dispatch takes into account planned and unplanned outage assumptions.

(c) 

Includes amounts under power sales contracts and natural gas hedges. The forward natural gas quantities are reflected in equivalent GWh based on forward 
market implied heat rate as of December 31, 2017, and then combined with power sales to arrive at equivalent GWh hedged. The coal sales include swaps 
and delta of options sold which is subject to change.  For detailed information on the Company's hedging methodology through use of derivative instruments, 
see discussion in Item 15 - Note 5, Accounting for Derivative Instruments and Hedging Activities, to the Consolidated Financial Statements. Includes 
inter-segment sales from the Company's wholesale power generation business to the retail business.

(d)  Percentage hedged is based on total coal sales as described in (c) above divided by the forecasted coal capacity.

(e)  Represents U.S. coal sales, including energy revenue and demand charges, excluding revenues derived from capacity auctions.  

Capacity and Other Contracted Revenue Sources

NRG's revenues and cash flows benefit from capacity/demand payments and other contracted revenue sources, originating 
from market clearing capacity prices, Resource Adequacy contracts, tolling arrangements, PPAs and other long-term contractual 
arrangements:  

•  Capacity auctions — The Company's largest sources of capacity revenues are capacity auctions in PJM, ISO-NE, and 
NYISO.  Both ISO-NE and PJM operate a pay-for-performance model where capacity payments are modified based 
on real-time performance, where NRG's actual revenues will be the combination of revenues based on the cleared 
auction MWs plus the net of any over- and under-performance of NRG's fleet. In addition, MISO has an annual auction, 
known as the Planning Resource Auction, or PRA. The Gulf Coast assets situated in the MISO market may participate 
in this auction.  

•  Resource adequacy and bilateral contracts — In California, there is a resource adequacy requirement that is primarily 
satisfied through bilateral contracts. Such bilateral contracts are typically short-term resource adequacy contracts. When 
bilateral contracting does not satisfy the resource adequacy need, such shortfalls can be addressed through procurement 
tools administered by the CAISO, including the capacity procurement mechanism or reliability must-run contracts. In 
addition,  NRG  earns  demand  payments  from  its  long-term  full-requirements  load  contracts  with  nine  Louisiana 
distribution cooperatives, which expire in 2025. Demand payments from the current long-term contracts are tied to 
summer peak demand and provide a mechanism for recovering a portion of the costs associated with new or changed 
environmental laws or regulations. In Texas, capacity and contracted revenues are through bilateral contracts with load 
serving entities. 

• 

Long-term PPAs — Output from the majority of renewable energy assets and certain conventional energy plants is sold 
through long-term PPAs and tolling agreements to a single counterparty, which is often a utility or commercial customer.

Fuel Supply and Transportation

NRG's fuel requirements consist of various forms of fossil fuel (including coal, natural gas and oil) and nuclear fuel. The 
prices of fossil fuels are highly volatile. The Company obtains its fossil fuels from multiple suppliers and through multiple 
transporters. Although availability is generally not an issue, localized shortages, transportation availability, delays arising from 
extreme weather conditions and supplier financial stability issues can and do occur.  The preceding factors related to the sources 
and availability of raw materials are fairly uniform across the Company's businesses and fuel products used.

Coal — The  Company  believes  it  is  adequately  hedged,  using  forward  coal  supply  agreements,  for  its  domestic  coal 
consumption for 2018.  NRG actively manages its coal requirements based on forecasted generation, market volatility and its 
inventory on site.  As of December 31, 2017, NRG had purchased forward contracts to provide fuel for approximately 41% of 
the Company's expected requirements from 2018 through 2021, including expected coal inventory draw down.  NRG purchased 
approximately 21 million tons of coal in 2017, almost all of which was Powder River Basin coal. For fuel transport, NRG has 
entered into various rail and barge transportation and rail car lease agreements with varying tenures that provide for most of the 
Company's transportation requirements of Powder River Basin coal for the next 4 years. 

The following table shows the percentage of the Company's coal requirements from 2018 through 2021 that have been 

purchased forward as of December 31, 2017:

2018
2019
2020
2021

(a) 

Includes expected coal inventory draw down.

Percentage of
Company's
Requirement (a)

97%
40%
26%
—%

Natural Gas — NRG operates a fleet of mid-merit and peaking natural gas plants across all its U.S. wholesale regions.  
Fuel needs are managed on a spot basis, especially for peaking assets, as the Company does not believe it is prudent to forward 
purchase natural gas for these types of units, the dispatch of which is highly unpredictable. The Company contracts for natural 
gas storage services as well as natural gas transportation services to deliver natural gas when needed.

Nuclear Fuel — STP's owners satisfy their fuel supply requirements by: (i) acquiring uranium concentrates and contracting 
for conversion of the uranium concentrates into uranium hexafluoride; (ii) contracting for enrichment of uranium hexafluoride; 
and (iii) contracting for fabrication of nuclear fuel assemblies. Through its proportionate participation in STPNOC, which is the 
NRC-licensed operator of STP and responsible for all aspects of fuel procurement, NRG is party to a number of long-term 
forward purchase contracts with many of the world's largest suppliers covering STP's requirements for uranium concentrates 
with only approximately 25% of STP's requirements outstanding for the duration of the original operating license.  Similarly, 
NRG is party to long-term contracts to procure STP's requirements for conversion and enrichment services and fuel fabrication 
for the life of the operating license. Since the operating license was renewed for another 20 years in September 2017, STPNOC 
has begun to review a second phase of fuel purchasing.

Retail Operations

In 2017, NRG's retail businesses sold electricity to residential, commercial and industrial consumers at either fixed, indexed 
or variable prices.  Residential and smaller commercial consumers typically contract for terms ranging from one month to five 
years while industrial contracts are often between one year and five years in length.  In 2017, NRG's retail businesses sold 
approximately 63 TWhs of electricity. In any given year, the quantity of TWhs sold can be affected by weather, economic 
conditions and competition.  The wholesale supply is typically purchased as the load is contracted from a combination of NRG's 
wholesale portfolio and other third parties.  The ability to choose supply from the market or the Company's portfolio allows for 
an optimal combination to support and stabilize retail margins.

18

19

 
 
 
 
 
 
 
 
Operational Statistics

The generation performance by region for the three years ended December 31, 2017, 2016 and 2015, is shown below: 

The following are industry statistics for the Company's fossil and nuclear plants, as defined by the NERC, and are more 

fully described below:

Annual Equivalent Availability Factor, or EAF — Measures the percentage of maximum generation available over time 
as the fraction of net maximum generation that could be provided over a defined period of time after all types of outages and 
deratings, including seasonal deratings, are taken into account.

Net Heat Rate — The net heat rate represents the total amount of fuel in BTU required to generate one net kWh provided.

Net Capacity Factor — The net amount of electricity that a generating unit produces over a period of time divided by the 
net amount of electricity it could have produced if it had run at full power over that time period. The net amount of electricity 
produced is the total amount of electricity generated minus the amount of electricity used during generation.

The tables below present these performance metrics for the Company's global power generation portfolio, including leased 

facilities and those accounted for through equity method investments, for the years ended December 31, 2017 and 2016:

Year Ended December 31, 2017

Fossil and Nuclear Plants

Net Generation 

Net Owned
Capacity (MW)

(MWh)                 

(In thousands) (b)

Annual Equivalent
Availability Factor

Average Net Heat
Rate BTU/kWh

Net Capacity
Factor

Generation
Gulf Coast
East/West
Renewables
NRG Yield (a)

Generation
Gulf Coast
East/West
Renewables
NRG Yield (a)

13,714
12,451
1,565
5,247

49,573
13,373
3,836
10,686

89.5%
85.4
94.7
95.5

10,106
10,757
—
8,938

38.9%
12.2
38.2
21.4

Year Ended December 31, 2016

Fossil and Nuclear Plants

Net Generation 

Net Owned
Capacity (MW)

(MWh)                 

(In thousands) (b)

Annual Equivalent
Availability Factor

Average Net Heat
Rate BTU/kWh

Net Capacity
Factor

14,085
12,519
1,788
3,310

47,827
17,114
3,827
11,230

88.2%
78.3
96.9
96.6

10,028
10,258
—
8,848

38.6%
15.7
35.3
22.6

Generation

Gulf Coast

Coal
Gas
Nuclear (a)
Total Gulf Coast
East/West

Coal
Oil
Gas

Total East/West

Renewables
Solar
Wind

Total Renewables

NRG Yield
Solar
Wind
Gas and Dual-Fuel (b)
Total NRG Yield

2017

Net Generation
2016
(In thousands of MWh)

2015

28,622
11,442
9,509
49,573

8,407
319
4,647
13,373

1,740
2,096
3,836

1,248
5,597
3,841
10,686

25,197
13,071
9,559
47,827

11,096
318
5,700
17,114

1,634
2,193
3,827

1,281
6,010
3,939
11,230

29,301
16,288
8,573
54,162

19,155
567
4,909
24,631

1,027
2,281
3,308

1,332
4,479
4,731
10,542

(a)  MWh information reflects the Company's undivided interest in total MWh generated by STP.
(b)  Gas and Dual-Fuel includes thermal heating and chilled water generation as well as assets contracted under tolling agreements.

(a)  NRG Yield includes thermal generation.
(b)  Net generation excludes equity method investments.

20

21

 
 
 
 
 
 
 
 
 
 
 
 
Segment Review

The Company's segment structure reflects how management currently makes financial decisions and allocates resources. 
Effective January 2017, the Company's businesses are segregated as follows: Generation , which includes generation, international 
and BETM; Retail which includes Mass customers and Business Solutions, which includes C&I customers and other distributed 
and reliability products; Renewables, which includes solar and wind assets, excluding those in NRG Yield; NRG Yield; and 
corporate activities. Intersegment sales are accounted for at market. The Company has recast data from prior periods to reflect 
changes in reportable segments to conform to the current year presentation. 

During 2017, NRG Yield acquired several projects totaling 555 MW for cash consideration of approximately $245 million 
from NRG. These acquisitions were accounted for as transfers of entities under common control and accordingly, all historical 
periods have been recast to reflect this change. 

On June 14, 2017, NRG deconsolidated GenOn for financial reporting purposes. The financial information for all historical 

periods have been recast to present GenOn as discontinued operations within the corporate segment. 

  Revenues

The following table contains a summary of NRG's operating revenues by segment for the years ended December 31, 2017, 
2016 and 2015, as discussed in Item 15 — Note 18, Segment Reporting, to the consolidated financial statements.  Refer to that 
footnote for additional financial information about NRG's business segments including a profit measure and total assets. In 
addition, refer to Item 2 — Properties, to the consolidated financial statements for information about facilities in each of NRG's 
business segments.

Generation
Retail
Renewables
NRG Yield
Corporate and Eliminations (b)

Total

Year Ended December 31, 2017

Energy
Revenues

Capacity
Revenues

Retail
Revenues

Mark-to-
Market
Activities

Contract
Amortization

Other
Revenues(a)

Total
Operating
Revenues(b)

$

$ 2,636
—
359
554
(1,088)

851
—
—
346
(11)

$

— $

6,385
—
—
3

(In millions)
37
$
(4)
(12)
—
218

$ 2,461

$ 1,186

$

6,388

$

239

$

$

14
(1)
—
(69)
—
(56) $

235
—
77
178
(79)
411

$

3,773
6,380
424
1,009
(957)
$ 10,629

(a)  Primarily consists of revenues generated by the Thermal business (NRG Yield segment), operation and maintenance revenues and unrealized trading 

activities, primarily at BETM (Generation segment).

(b)  Energy revenues include inter-segment sales primarily between Generation and Retail. 

Year Ended December 31, 2016

Energy
Revenues

Capacity
Revenues

Retail
Revenues

Mark-to-
Market
Activities

Contract
Amortization

Other
Revenues(c)

Total
Operating
Revenues(d)

3,833
Generation
6,335
Retail
406
Renewables
1,035
NRG Yield
Corporate and Eliminations (d)
(1,097)
$ 10,512
Total
(c)  Primarily consists of revenues generated by the Thermal business (NRG Yield segment), operation and maintenance revenues and unrealized trading 

$ 3,171
—
369
582
(991)
$ 3,131

891
—
—
345
(11)
$ 1,225

15
(1)
(1)
(69)
—
(56) $

6,336
—
—
21
6,357

322
—
44
177
(46)
497

— $

$

$

$

$

$

$

(In millions)
(566) $
—
(6)
—
(70)
(642) $

activities, primarily at BETM (Generation segment).

(d)  Energy revenues include inter-segment sales primarily between Generation and Retail.

Year Ended December 31, 2015

Energy
Revenues

Capacity
Revenues

Retail
Revenues(f)

Mark-to-
Market
Activities

Contract
Amortization

Other
Revenues(e)

Total
Operating
Revenues(f)

5,179
Generation
6,913
Retail
383
Renewables
968
NRG Yield
Corporate and Eliminations(f)
(1,115)
$ 12,328
Total
(e)  Primarily consists of revenues generated by the Thermal business (NRG Yield segment), operation and maintenance revenues and unrealized trading 

$ 4,072
—
356
495
(1,056)
$ 3,867

$ 1,027
—
—
341
(7)
$ 1,361

15
(1)
—
(54)
—
(40) $

6,910
—
—
(43)
6,867

207
—
30
188
(18)
407

— $

$

$

$

$

$

(In millions)
(142) $
4
(3)
(2)
9
(134) $

activities, primarily at BETM (Generation segment).

(f)  Energy revenues include inter-segment sales primarily between Generation and Retail.

Seasonality and Price Volatility

Annual and quarterly operating results of the Company's wholesale power generation segments can be significantly affected 
by weather, including wind resource availability, and energy commodity price volatility.  Significant other events, such as the 
demand for natural gas, interruptions in fuel supply infrastructure and relative levels of hydroelectric capacity can increase 
seasonal fuel and power price volatility.  The preceding factors related to seasonality and price volatility are fairly uniform across 
the Company's wholesale generation business segments.

The sale of electric power to retail customers is also a seasonal business with the demand for power generally peaking 
during the summer months.  As a result, net working capital requirements for the Company's retail operations generally increase 
during summer months along with the higher revenues, and then decline during off-peak months.  Weather may impact operating 
results and extreme weather conditions could materially affect results of operations.  The rates charged to retail customers may 
be impacted by fluctuations in total power prices and market dynamics like the price of natural gas, transmission constraints, 
competitor actions, and changes in market heat rates.

Market Framework 

Organized Energy Markets in CAISO, ERCOT, ISO-NE, MISO, NYISO and PJM 

The majority of NRG's fleet operates in one of the organized energy markets, known as RTOs or ISOs. Each organized 
market  administers  day-ahead  and  real-time  centralized  bid-based  energy  and  ancillary  services  markets  pursuant  to  tariffs 
approved by FERC, or in the case of ERCOT, market rules approved by the PUCT.  These tariffs and rules dictate how the energy 
markets operate, how market participants make bilateral sales with one another, and how entities with market-based rates are 
compensated.  Established prices reflect the value of energy at the specific location and time it is delivered, which is known as 
the Locational Marginal Price, or LMP.  Each market is subject to market mitigation measures designed to limit the exercise of 
locational market power.  These market structures facilitate NRG's sale of power and capacity products at market-based rates.    

Other than ERCOT, each of the ISO regions also operates a capacity or resource adequacy market that provides an opportunity 
for generating and demand response resources to earn revenues to offset their fixed costs that are not recovered in the energy 
and ancillary services markets.  The ISOs are also responsible for transmission planning and operations.   

Gulf Coast

NRG's Gulf Coast wholesale power generation business is located in the ERCOT and MISO markets.  The ERCOT market 
is  one  of  the  nation's  largest  and  historically  fastest  growing  power  markets.  ERCOT  is  an  energy  only  market,  and  has 
implemented market rule changes to provide pricing more reflective of higher energy value when operating reserves are scarce 
or constrained.  NRG also operates generation assets that are located within MISO, participating in the MISO day-ahead and 
real-time energy and ancillary services markets. Additionally, MISO employs a one-year forward resource adequacy construct, 
in  which  capacity  resources  can  compete  for  fixed  cost  recovery  in  the  capacity  auction.   NRG  continues  to  provide  full 
requirements service to LSEs, including cooperatives and municipalities in the MISO region.

22

23

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
East/West 

Regulatory Matters 

NRG's generation and demand response assets located in the East region of the U.S. are within the control areas of ISO-
NE, NYISO and PJM.  Each of the market regions in the East region provides for robust competition in the day-ahead and real-
time energy and ancillary services markets.  Additionally, the East region receives a significant portion of its revenues from 
capacity markets in ISO-NE, NYISO and PJM.  PJM and ISO-NE use a three-year forward capacity auction, while NYISO uses 
a month-ahead capacity auction.  Capacity market prices are sensitive to design parameters, as well as additions of new capacity.  
Both ISO-NE and PJM operate a pay-for-performance model where capacity payments are modified based on real-time generator 
performance.  In such markets, NRG’s actual revenues will be the combination of cleared auction prices times the quantity of 
MWs cleared, plus the net of any over-performance “bonus payments” and any under-performance charges. In both markets, 
bidding rules allow for the incorporation of a risk premium into generator bids. 

In the West region, NRG operates a fleet of natural gas fired facilities located entirely within the CAISO footprint.  The 
CAISO  operates  day-ahead  and  real-time  locational  markets  for  energy  and  ancillary  services,  while  managing  congestion 
primarily through nodal prices.  The CAISO system facilitates NRG's sale of power, ancillary services and capacity products at 
market-based rates, either within the CAISO's centralized energy and ancillary service markets or bilaterally pursuant to tolling 
arrangements or other capacity sales with California's LSEs.  The CPUC also determines capacity requirements for LSEs and 
for specified local areas utilizing inputs from the CAISO.  Both the CAISO and CPUC rules require LSEs to contract with 
sufficient generation resources in order to maintain minimum levels of generation within defined local areas.  Additionally, the 
CAISO has independent authority to contract with needed resources under certain circumstances, typically either when LSEs 
have failed to procure sufficient resources, or system conditions change unexpectedly. 

Renewables

NRG  operates  a  fleet  of  utility  scale  and  distributed  renewable  generating  assets  across  the  U.S.    Many  states  have 
implemented their own renewable portfolio standards requiring LSEs to provide a given percentage of their energy sales from 
renewable resources.  As a result, a number of LSEs have entered into long-term PPAs with NRG's utility scale renewable 
generating facilities.  There are examples of states increasing their RPS from initially stated levels, such as California’s 50%
RPS by 2030 and Hawaii’s goal of achieving 100% renewables by 2045. In addition, given the cost competitiveness of renewables, 
LSEs are procuring renewables in excess of their RPS obligations. In December 2015, the U.S. Congress extended the 30%
solar ITC so that projects which begin construction in 2016 through 2019 will continue to qualify for the 30% ITC.  Projects 
beginning construction in 2020 and 2021 will be eligible for the ITC at the rates of 26% and 22%, respectively.  The same 
legislation also extended the 10-year wind PTC for wind projects which begin construction in years 2016 through 2019.  Wind 
projects which begin construction in the years 2017, 2018 and 2019 are eligible for PTC at 80%, 60% and 40% of the statutory 
rate per kWh, respectively. 

Retail 

NRG's retail businesses sell energy and related services as well as portable power and battery solutions to customers across 
the country. In most of the states that have introduced retail competition, NRG's retail businesses competitively offer retail power, 
natural gas, portable power or other value-enhancing services to end-use customers. Each retail choice state establishes its own 
retail competition laws and regulations, and the specific operational, licensing, and compliance requirements vary on a state-
by-state basis. In the East markets, incumbent utilities currently provide default service and as a result typically serve a majority 
of residential customers. In Texas, NRG’s retail business activities are subject to standards and regulations adopted by the PUCT 
and ERCOT, including the requirement for retailers to be certified by the PUCT in order to contract with end-users to sell 
electricity. A majority of the retail load is in the ERCOT market region and is served by competitive retail suppliers, except 
certain areas that are served by municipal utilities and electric cooperatives that have not opted into competitive choice. Regulated 
terms and conditions of default service, as well as any movement to replace default service with competitive services, as is done 
in ERCOT, can affect customer participation in retail competition.  The attractiveness of NRG's retail offerings in each state 
may be impacted by the rules, regulations, market structure and communication requirements from public utility commissions 
across the country.

As owners of power plants and participants in wholesale and retail energy markets, certain NRG entities are subject to 
regulation by various federal and state government agencies.  These include the CFTC, FERC, NRC and the PUCT, as well as 
other public utility commissions in certain states where NRG's generating, thermal, or distributed generation assets are located.  
In addition, NRG is subject to the market rules, procedures and protocols of the various ISO and RTO markets in which it 
participates.  Likewise, certain NRG entities participating in the retail markets are subject to rules and regulations established 
by the states in which NRG entities are licensed to sell at retail.  NRG must also comply with the mandatory reliability requirements 
imposed by NERC and the regional reliability entities in the regions where NRG operates.  

NRG's operations within the ERCOT footprint are not subject to rate regulation by FERC, as they are deemed to operate 
solely within the ERCOT market and not in interstate commerce.  These operations are subject to regulation by the PUCT, as 
well as to regulation by the NRC with respect to NRG's ownership interest in STP.

Federal Energy Regulation

FERC

FERC regulates the transmission and the wholesale sale by public utilities of electricity in interstate commerce under the 
authority of the FPA.  Under existing regulations, FERC determines whether an entity owning a generation facility is an EWG 
as defined in the PUHCA. FERC also determines whether a generation facility meets the ownership and technical criteria of a 
QF under PURPA.  The transmission of electric energy occurring wholly within ERCOT is not subject to FERC's rate jurisdiction 
under Sections 203 or 205 of the FPA.  Each of NRG's non-ERCOT U.S. generating facilities either qualifies as a QF, or the 
subsidiary owning the facility qualifies as an EWG.

Public utilities are required to obtain FERC's acceptance, pursuant to Section 205 of the FPA, of their rate schedules for 
the wholesale sale of electricity.  Generally all of NRG's non-QF generating and power marketing entities located outside of 
ERCOT make sales of electricity pursuant to market-based rates, as opposed to traditional cost-of-service regulated rates.

Derivatives Regulatory Reforms

In the U.S., the CFTC regulates the trading of swaps, futures and many commodities under the Commodity Exchange Act, 
or CEA. In recent years, there have been a number of reforms to the regulation of the derivatives markets, both in the U.S. and 
internationally.   These  regulations,  and  any  further  changes  thereto,  or  adoption  of  additional  regulations,  including  any 
regulations relating to position limits on futures and other derivatives or margin for derivatives, could negatively impact NRG’s 
ability to hedge its portfolio in an efficient, cost-effective manner by, among other things, potentially decreasing liquidity in the 
forward commodity and derivatives markets or limiting NRG’s ability to utilize non-cash collateral for derivatives transactions.

Department of Energy's Proposed Grid Resiliency Pricing Rule — On September 29, 2017, the Department of Energy 
issued a proposed rulemaking titled the "Grid Resiliency Pricing Rule." The rulemaking proposed that FERC take action to 
reform the ISO/RTO markets to value certain reliability and resiliency attributes of electric generation resources. On October 
23, 2017, NRG filed comments encouraging FERC to act expeditiously to modernize energy and capacity markets in a manner 
compatible with robust competitive markets. On January 8, 2018, FERC terminated the proposed rulemaking and opened a new 
rulemaking asking each ISO/RTO to address specific questions focused on grid resilience.

State Energy Regulation

In Texas, NRG's operations within the ERCOT footprint are not subject to rate regulation by FERC, because they operate 
solely within the ERCOT market.  These operations are subject to regulation by the PUCT, as well as to regulation by the NRC 
with respect to NRG's ownership interest in STP.

In New York, NRG's generation subsidiaries are electric corporations subject to "lightened" regulation by the NYSPSC.  
As  such,  the  NYSPSC  exercises  its  jurisdictional  authority  over  certain  non-rate  aspects  of  the  facilities,  including  safety, 
retirements, and the issuance of debt secured by recourse to NRG's generation assets located in New York. 

In California, NRG's generation subsidiaries are subject to regulation by the CPUC with regard to certain non-rate aspects 
of the facilities, including health and safety, outage reporting and other aspects of the facilities' operations.  Additionally, the 
competitiveness of many of NRG's businesses depends on state competition and other policies.

24

25

 
 
 
 
 
 
State Out-Of-Market Subsidy Proposals — Certain states in the areas of the country in which NRG operates, including 
New Jersey, Ohio and Pennsylvania have considered but have not enacted proposals to provide out-of-market subsidy payments 
to potentially uneconomic nuclear and fossil generating units.  NRG has opposed efforts to provide out-of-market subsidies, 
and intends to continue opposing them in the future.   

Nuclear Operations

NRG South Texas LP owns 44% of a joint undivided interest in STP. The other owners of STP are the City of Austin, Texas 
(16%) and the City Public Service Board of San Antonio (40%).  STP Nuclear Operating Company, or STPNOC, was founded 
by the then-owners in 1997 to operate the plant and it is the operator, licensee and holder of the Facility Operating Licenses 
NPF-76 and NPF-80. STPNOC is a nonstock, nonprofit, nonmember corporation. Each owner of STP appoints a board member 
(and the three directors then choose a fourth director who also serves as the chief executive officer of STPNOC). A participation 
agreement establishes an owners' committee with voting interests consistent with ownership interests. 

As a holder of an ownership interest in STP, NRG South Texas LP is an NRC licensee and is subject to NRC regulation.  
The NRC license gives the Company the right only to possess an interest in STP but not to operate it.  As a possession-only 
licensee, i.e., non-operating co-owner, the NRC's regulation of NRG South Texas LP is primarily focused on the Company's 
ability  to  meet  its  financial  and  decommissioning  funding  assurance  obligations.    In  connection  with  the  NRC  license,  the 
Company and its subsidiaries have a support agreement to provide up to $120 million to support operations at STP. 

 Decommissioning Trusts — Upon expiration of the operating licenses for the two generating units at STP, recently extended 
until 2047 and 2048, respectively, the co-owners of STP are required under federal law to decontaminate and decommission the 
STP facility. Under NRC regulations, a power reactor licensee generally must pre-fund the full amount of its estimated NRC 
decommissioning obligations unless it is a rate-regulated utility, or a state or municipal entity that sets its own rates, or has the 
benefit of a state-mandated non-bypassable charge available to periodically fund the decommissioning trust such that the trust, 
plus allowable earnings, will equal the estimated decommissioning obligations by the time the decommissioning is expected to 
begin.

 NRG South Texas LP, through its 44% ownership interest, is the beneficiary of decommissioning trusts that have been 
established to provide funding for decontamination and decommissioning of STP. CenterPoint and AEP collect, through rates 
or other authorized charges to their electric utility customers, amounts designated for funding NRG South Texas LP's portion 
of the decommissioning of the facility. See also Item 15 — Note 6, Nuclear Decommissioning Trust Fund, to the Consolidated 
Financial Statements for additional discussion.

If the funds from the trusts are ultimately determined to be inadequate to decommission the STP facilities, the original 
owners of the Company's STP interests, CenterPoint and AEP, each will be required to collect, through their PUCT-authorized 
non-bypassable rates or other charges to customers, additional amounts required to fund NRG South Texas LP's obligations 
relating to the decommissioning of the facility.  Following the completion of the decommissioning, if surplus funds remain in 
the  decommissioning  trusts,  those  excesses  will  be  refunded  to  the  respective  rate  payers  of  CenterPoint  or AEP,  or  their 
successors. 

 Regional Regulatory Developments

NRG is affected by rule/tariff changes that occur in the ISO regions.  For further discussion on regulatory developments 

see Item 15 — Note 23, Regulatory Matters, to the Consolidated Financial Statements.

Gulf Coast

MISO 

Revisions to MISO Capacity Construct — On February 28, 2018, FERC issued two orders on MISO’s capacity market 
design, which together, re-affirm MISO’s existing capacity market structure.  FERC also held that, even though there was a 
period of time between where MISO’s capacity market structure may not have just and reasonable, that FERC exercised its 
remedial authority not to rerun past auctions.  The Company has 30 days to seek an administrative rehearing with FERC.  The 
eventual outcome of this proceeding will affect capacity prices in MISO and the incentive for generators in MISO to sell capacity 
into neighboring markets.

East/West

FERC’s Fast-Start Pricing Dockets — On December 28, 2017, notices were published regarding FERC’s initiation of FPA 
section 206 proceedings for the NYISO, PJM, and SPP to investigate these ISO pricing practices for fast-start generating resources.  
FERC found that the practices of each ISO regarding the pricing of fast-start resources may be unjust and unreasonable because 
the practices do not allow prices to reflect the marginal cost of serving load. FERC also terminated its generic rulemaking into 
these issues. The proceeding is ongoing. The outcome of this proceeding could affect price formation in the respective energy 
markets.

PJM 

Minimum Offer Price Rule Exemption Appeal — On July 7, 2017, the D.C. Circuit vacated a FERC order from 2013 related 
to an exemption to the Minimum Offer Price Rule, or MOPR, and remanded the issue back to FERC.  On October 23, 2017, 
PJM re-filed its initial 2012 MOPR. On December 8, 2017, FERC rejected PJM's filing and directed PJM to submit a compliance 
filing reinstating the MOPR in effect prior to PJM's December 2012 filing. PJM submitted a compliance filing modifying certain 
PJM tariff sections, retaining the unit-specific exception, which FERC has accepted.

Generators’  Complaint  on  Existing  Generation  MOPR  —  On  January  9,  2017,  NRG,  its  trade  association  and  other 
generators filed a joint amendment to the pending complaint seeking to apply the MOPR in the capacity market to existing 
resources that receive out-of-market subsidies.  This filing amends the March 21, 2016 complaint filed by NRG and other 
companies  related  to  ratepayer-funded  subsidies  approved  by  the  PUCO.   The  national  trade  association  sought  expedited 
treatment to implement countermeasures to protect consumers and wholesale power markets from the negative effects of out-
of-market subsidies, like the Zero Emission Credit.  The complaint is pending at FERC.

2020/2021 PJM Auction Results — On May 23, 2017, PJM announced the results of its 2020/2021 Base Residual Auction.  
NRG cleared approximately 3,992 MW of Capacity Performance product. NRG’s expected capacity revenues from the Base 
Residual Auction for the 2020/2021 delivery year are approximately $268 million. 

The table below provides a detailed description of NRG’s 2020/2021 base residual auction results from May 23, 2017: 

Zone

Cleared Capacity (MW)(a)

Price ($/MW-day)

Capacity Performance Product

COMED

EMAAC

MAAC
Total

3,315

519

158

3,992

  $

  $

  $

188.12

187.87

86.04

(a) Includes imports. Does not include capacity sold by NRG Curtailment Solutions. 

PJM Seasonal Capacity Proceeding — On November 17, 2016, PJM proposed to allow winter- and summer-peaking 
capacity resources to “aggregate” their seasonal capacity into an annual capacity product eligible to participate as Capacity 
Performance resources. NRG filed comments specifically supporting PJM’s proposal to modify the aggregation rules to allow 
seasonal capacity resources to aggregate across LDAs and to allow aggregations through RPM auctions. On January 23, 2017, 
PJM amended its proposal to address questions from FERC. On March 21, 2017, FERC issued a decision accepting PJM's 
seasonal capacity aggregation filing pursuant to FERC staff's delegated authority, since FERC did not have a quorum at the time. 
On February 23, 2018, FERC re-affirmed its prior order.  Rehearings are pending at FERC. The outcome of this proceeding 
could have a material impact on future PJM capacity prices.

Complaints Related to Extension of Base Capacity — In 2015, FERC approved changes to PJM’s capacity market, which 
included moving from the Base Capacity product to the higher performance Capacity Performance product over the course of 
a five year transition.  Under this transition, as of the May 2017 BRA, the Base Capacity product will no longer be available.  
Several parties have filed complaints at FERC seeking to maintain the RPM Base Capacity product for at least one more delivery 
year or until such time as PJM develops a model for seasonal resources to participate.  If the transition is delayed, capacity prices 
could be materially impacted.  The matters are pending at FERC.

26

27

 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
Complaints Regarding Pseudo-Ties for Capacity — On April 6, 2017, Potomac Economics, the market monitor for MISO 
and NYISO, filed a complaint against PJM regarding the participation of external capacity resources in PJM’s auction. Currently, 
external resources must enter into a pseudo-tie agreement in order to sell capacity into PJM. The complaint alleges that the 
pseudo-tie  requirement  is  causing  market  inefficiencies  in  PJM,  New  York  and  MISO  and  suggests  a  new  protocol  for 
incorporating external resources into PJM’s markets. In addition, other market participants have filed separate complaints at 
FERC against MISO or PJM, respectively, for issues resulting from pseudo-tied generators. The complainants argue that the 
generation owners with pseudo-ties from MISO to PJM are receiving double-charges for congestion. The outcome could impact 
the PJM, NYISO and MISO capacity markets.

Midwest  Generation  Reactive  Power  Compensation  —  On  June  21,  2016,  FERC  issued  an  order  directing  Midwest 
Generation to make a compliance filing setting forth refunds for payments received in violation of its 2004 reactive power 
settlement or to show cause why it has not violated the settlement. FERC also ordered Midwest Generation to revise its tariff 
to reflect the costs of units continuing to provide reactive power or show cause why it should not be required to do so. FERC 
also referred this matter to FERC's Office of Enforcement. On June 30, 2016, Midwest Generation filed a revised tariff, and on 
July 22, 2016, Midwest Generation made a compliance filing as ordered by FERC. On October 13, 2016, FERC found that 
Midwest Generation should only be liable for refunds that accrued after bankruptcy on April 1, 2014 through June 30, 2016.   
On November 16, 2017, Midwest Generation filed its Offer of Settlement, which was approved by FERC on February 22, 2018.   
In addition, FERC's Office of Enforcement has closed the investigation into Midwest Generation without further action.

New England

Competitive Auctions with Sponsored Resources Proposal (CASPR) — On January 8, 2018, ISO-NE filed the CASPR 
proposal which attempts to accommodate state sponsored resources while maintaining competitive market pricing.  On January 
29,  2018,  NRG  protested  certain  aspects  of  the  proposal  and  also  supported  ISO-NE’s  beginning  attempts  to  address  state 
sponsored resources entering the capacity market.  The outcome of this proceeding will potentially affect future capacity market 
prices.  

Renewable Technology Resource (RTR) Exemption — In 2014, FERC approved a package of revisions that included a 
renewables exemption called the RTR Exemption.  After FERC denied rehearing, the case was appealed to the D.C. Circuit.  
After a voluntary remand motion, the Court remanded the case back to FERC.  In 2016, FERC issued an order reaffirming its 
decision.  In 2017, a group of generators, including NRG, filed a petition for review with the D.C. Circuit.  Briefing is complete.  
Oral argument is scheduled for April 13, 2018.   

Challenge to ISO-NE’s Capacity Carry Forward Rule — On February 2, 2018, the D.C. Circuit remanded a FERC order 
regarding how generators that previously received a seven-year “price lock” should be priced in future auctions, known as the 
Capacity Carry Forward Rule.  The price-lock mechanism permits qualified new resources that clear the auction to receive their 
first-year clearing price for seven years.  Because the underlying orders focused on the implementation of the Capacity Carry 
Forward Rule, this remand does not implicate the validity of the underlying price-lock.  Because several auctions have been 
held under the existing rules, any subsequent order from FERC could affect future capacity prices in New England, as well as 
affect the price that non-price locked resources could receive from prior capacity auction.

2021/2022 ISO-NE Auction Results — On February 6, 2018, ISO-NE announced the results of its 2021/2022 forward 
capacity auction.  NRG cleared 1,529 MW at $4.631 kW-month providing expected annualized capacity revenues of $85 million.  
The 333 MWs at Canal Unit 3, which previously cleared the tenth forward capacity auction with a seven year price lock at a 
price of $7.03 kW-month for the 2021/2022 deliverability year, are excluded from these results. 

Massachusetts GHG Regulations — On September 11, 2017, multiple generators, including GenOn Energy, Inc. and the 
New England Power Generators Association, or NEPGA, filed complaints regarding the Massachusetts GHG regulations with 
the Superior Court in Massachusetts.  The complaint alleges that the final regulation does not demonstrate a lowering of emissions 
and that the regulation violates the state’s Global Warming Solutions Act law.  On January 30, 2018, the Massachusetts Supreme 
Judicial Court transferred the superior court cases to the Supreme Judicial Court for Suffolk County.  At the same time, the Court 
stayed two pending appeals of siting certificates, one of which is the certificate of NRG’s Canal 3 development.  The outcome 
of the matter may affect generators’ abilities to run their plants without violating environmental regulations. 

Northern Pass Siting Application — On February 1, 2018, the New Hampshire Site Evaluation Committee denied the 
application for Northern Pass to cross the state with a 160-mile transmission line from Quebec into southern New Hampshire.  
The Northern Pass transmission line project had previously been awarded a contract by the State of Massachusetts, which is 
now in doubt.  The addition of 1,000 MW of additional Canadian hydropower associated with Northern Pass would have affected 
energy and capacity prices. 

Peak Energy Rent Adjustment Complaint — On September 30, 2016, the New England Power Generators Association, or 
NEPGA, filed a complaint against ISO-NE asking FERC to find the Peak Energy Rent, or PER, unjust and unreasonable. The 
PER adjustment reduces capacity payments on days where energy prices exceed a pre-defined level, known as the "PER strike 
price." On January 9, 2017, FERC granted NEPGA’s complaint requiring a change to the methodology used to calculate the 
PER strike price. FERC also directed the parties to determine any refunds for PER paid between September 30, 2016 and May 
31, 2018. On July 26, 2017, NEPGA filed settlement documents at FERC, which NRG supported. On February 20, 2018, FERC 
accepted the settlement and directed ISO-NE to submit a compliance filing setting out the PER calculation.

New York

Independent Power Producers of New York (IPPNY) Complaint — On January 9, 2017, EPSA requested FERC to promptly 
direct the NYISO to file tariff provisions to address pending market concerns related to out-of-market payments to existing 
generation in the NYISO.  This request was prompted by the ZEC program initiated by the NYSPSC.  This request follows 
IPPNY’s complaint at FERC against the NYISO on May 10, 2013, as amended on March 25, 2014.  The generators asked FERC 
to direct the NYISO to require that capacity from existing generation resources that would have exited the market but for out-
of-market payments be mitigated. Failure to implement buyer-side mitigation measures could result in uneconomic entry, which 
artificially decreases capacity prices below competitive market levels.

New York Public Service Commission Retail Energy Market Proceedings — On February 23, 2016, the NYSPSC issued 
what it refers to as its “Retail Reset” order, or Reset Order, in docket 12-M-0476 et al. Among other things, the Reset Order 
placed a price cap on energy supply offers and required many retail providers to seek affirmative consent from certain retail 
customers. Various parties have challenged the NYPSC’s ability to regulate rates charged by competitive suppliers in New York 
state court. In conjunction with the court challenges, the NYPSC noticed both an evidentiary and a collaborative track to address 
the functioning of the competitive retail markets. An administrative hearing commenced on November 29, 2017 as part of the 
evidentiary track, which is ongoing. The outcome of the evidentiary and collaborative processes, combined with the outcome 
of the appeal of the Reset Order, could affect the viability of the New York retail energy market.

CAISO

Puente Power Project — On October 5, 2017, the California Energy Commission, or CEC, the agency responsible for 
permitting  the  Puente  Power  Project,  issued  a  statement  on  behalf  of  the  committee  of  two  Commissioners  overseeing  the 
permitting process stating their intention to issue a proposed decision that would deny a permit for the Puente Power Project. 
On October 16, 2017, NRG filed a motion to suspend the permitting proceeding for at least six months, which was granted on 
November 3, 2017.  During the six month suspension period, which could be extended, NRG will evaluate the progress of a 
procurement process initiated by SCE to replace the Puente Power Project.

Environmental Matters  

NRG is subject to numerous environmental laws in the development, construction, ownership and operation of projects. 
These laws generally require that governmental permits and approvals be obtained before construction and during operation of 
power plants.  Federal and state environmental laws historically have become more stringent over time.  Future laws may require 
the addition of emissions controls or other environmental controls or impose restrictions on our operations, which could affect 
the Company's operations. Complying with environmental laws often involves significant capital and operating expenses, as 
well as occasionally curtailing operations. NRG decides to invest capital for environmental controls based on the relative certainty 
of the requirements, an evaluation of compliance options, and the expected economic returns on capital.  

A number of regulations that may affect the Company are under review by the EPA, including ESPS for GHGs, ash disposal 
requirements, NAAQS revisions and implementation and effluent limitation guidelines.  NRG will evaluate the impact of these 
regulations as they are revised but cannot fully predict the impact of each until anticipated legal challenges are resolved.  

Air 

The CAA and the resulting regulations (as well as similar state and local requirements) have the potential to affect air 
emissions, operating practices and pollution control equipment required at power plants. Under the CAA, the EPA sets NAAQS 
for certain pollutants including SO2, ozone, and PM2.5. Many of the Company's facilities are located in or near areas that are 
classified by the EPA as not achieving certain NAAQS (non-attainment areas). The relevant NAAQS have become more stringent. 
The Company maintains a comprehensive compliance strategy to address continuing and new requirements. Complying with 
increasingly stringent air regulations could require the installation of additional emissions control equipment at some NRG 
facilities or retiring of units if installing such controls is not economic. Significant changes to air regulatory programs affecting 
the Company are described below. 

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Ozone  NAAQS  —  On  October  26,  2015,  the  EPA  promulgated  a  rule  that  reduces  the  ozone  NAAQS  to  0.070  ppm.  
Challenges to this rule have been stayed at the request of the EPA so that it can evaluate the rule. If the rule is not altered by the 
EPA and survives legal challenges, this more stringent NAAQS will obligate the states to develop plans to reduce NOx (an ozone 
precursor), which could affect some of the Company's units.

Cross-State Air Pollution Rule — The EPA finalized CSAPR in 2011, which was intended to replace CAIR in January 
2012, to address certain states' obligations to reduce emissions so that downwind states can achieve federal air quality standards. 
In December 2011, the D.C. Circuit stayed the implementation of CSAPR and then vacated CSAPR in August 2012 but kept 
CAIR in place until the EPA could replace it. In April 2014, the U.S. Supreme Court reversed and remanded the D.C. Circuit's 
decision. In October 2014, the D.C. Circuit lifted the stay of CSAPR. In response, the EPA in November 2014 amended the 
CSAPR compliance dates. Accordingly, CSAPR replaced CAIR on January 1, 2015. On July 28, 2015, the D.C. Circuit held 
that the EPA had exceeded its authority by requiring certain reductions that were not necessary for downwind states to achieve 
federal standards. Although the D.C. Circuit kept the rule in place, the court ordered the EPA to revise the Phase 2 (or 2017) (i) 
SO2 budgets for four states including Texas and (ii) ozone-season NOx budgets for 11 states including Maryland, New Jersey, 
New York, Ohio, Pennsylvania and Texas. On October 26, 2016, the EPA finalized the CSAPR Update Rule, which reduces 
future NOx allocations and discounts the current banked allowances to account for the more stringent 2008 Ozone NAAQS and 
to address the D.C. Circuit's July 2015 decision. This rule has been challenged in the D.C. Circuit. The Company believes its 
investment in pollution controls and cleaner technologies leave the fleet well-positioned for compliance. 

MATS — In 2012, the EPA promulgated standards (the MATS rule) to control emissions of HAPs from coal and oil-fired 
electric generating units. The rule established limits for mercury, non-mercury metals, certain organics and acid gases, which 
had to be met beginning in April 2015 (with some units getting a 1-year extension). In June 2015, the U.S. Supreme Court issued 
a decision in the case of Michigan v. EPA, and held that the EPA unreasonably refused to consider costs when it determined that 
it was "appropriate and necessary" to regulate HAPs emitted by electric generating units. The U.S. Supreme Court did not vacate 
the MATS rule but rather remanded it to the D.C. Circuit for further proceedings. In December 2015, the D.C. Circuit remanded 
the MATS rule to the EPA without vacatur. On April 25, 2016, the EPA released a supplemental finding that the benefits of this 
regulation outweigh the costs to address the U.S. Supreme Court's ruling that the EPA had not properly considered costs. This 
finding has been challenged in the D.C. Circuit. On April 18, 2017, the EPA asked the D.C. Circuit to postpone oral argument 
that had been scheduled for May 18, 2017 because the EPA is closely reviewing the supplemental finding to determine whether 
it should reconsider all or part of the rule. On April 27, 2017, the D.C. Circuit granted the EPA's request to postpone the oral 
argument and hold the case in abeyance. While NRG cannot predict the final outcome of this rulemaking, NRG believes that 
because it has already invested in pollution controls and cleaner technologies, the fleet is well-positioned to comply with the 
MATS rule.

Clean Power Plan — The attention in recent years on GHG emissions has resulted in federal regulations and state legislative 
and regulatory action. In October 2015, the EPA finalized the Clean Power Plan, or CPP, addressing GHG emissions from existing 
EGUs. On February 9, 2016, the U.S. Supreme Court stayed the CPP. The D.C. Circuit heard oral argument on the legal challenges 
to the CPP in September 2016. At the EPA's request, the D.C. Circuit agreed on April 28, 2017 to hold the case in abeyance. On 
October 16, 2017, the EPA proposed a rule to repeal the CPP. The Company believes the CPP is not likely to survive.

Greenhouse Gas Emissions — NRG emits CO2 and small quantities of other greenhouse gases, or GHGs, when generating 
electricity at most of its facilities. The graphs presented below illustrate NRG's domestic emissions of CO2e for 2015, 2016 and 
2017. A significant majority (>99%) of NRG's emission sources are subject to federal (U.S. EPA) GHG reporting requirements 
programs. NRG anticipates further reductions in CO2e emissions as the Company modernizes the fleet. From 2016 to 2017, the 
Company's CO2e emissions decreased from 48 million metric tons to approximately 46 million metric tons, representing a 4% 
reduction year over year. The primary factor leading to the decreased emissions include reductions in fleet wide annual net 
generation due to a continued market-driven shift towards increased generation from natural gas over coal. The Company's goal 
is to reduce CO2e emissions by 50% by 2030, and 90% by 2050, using 2014 as a baseline.

The effects from federal, regional or state regulation of GHGs on the Company's financial performance will depend on a 

number of factors, including the outcome of the legal challenges and actions of the current U.S. presidential administration.

 Byproducts, Wastes, Hazardous Materials and Contamination

In April 2015, the EPA finalized the rule regulating byproducts of coal combustion (e.g., ash and gypsum) as solid wastes 
under the RCRA. On September 13, 2017, the EPA granted the petition for reconsideration that the Utility Solid Waste Activities 
Group filed in May 2017. The Company has evaluated the impact of the new rule on the Company's consolidated financial 
position, results of operations, or cash flows and has accrued its environmental and asset retirement obligations under the rule 
based on current estimates as of December 31, 2017.

Domestic Site Remediation Matters

Under certain federal, state and local environmental laws, a current or previous owner or operator of any facility, including 
an electric generating facility, may be required to investigate and remediate releases or threatened releases of hazardous or toxic 
substances  or  petroleum  products.  NRG  may  be  responsible  for  property  damage,  personal  injury  and  investigation  and 
remediation costs incurred by a party in connection with hazardous material releases or threatened releases.  These laws, including 
the  Comprehensive  Environmental  Response,  Compensation  and  Liability  Act  of  1980  as  amended  by  the  Superfund 
Amendments and Reauthorization Act of 1986, or SARA, impose liability without regard to whether the owner knew of or 
caused the presence of the hazardous substances, and the courts have interpreted liability under such laws to be strict (without 
fault) and joint and several.  Cleanup obligations can often be triggered during the closure or decommissioning of a facility, in 
addition  to  spills  during  its  operations.    Further  discussions  of  affected  NRG  sites  can  be  found  in  Item 15 — Note  24, 
Environmental Matters, to the Consolidated Financial Statements.

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Nuclear Waste — The federal government's program to construct a nuclear waste repository at Yucca Mountain, Nevada 
was discontinued in 2010. Since 1998, the U.S. DOE has been in default of the federal government's obligations to begin accepting 
spent nuclear fuel, or SNF, and high-level radioactive waste, or HLW, under the U.S. Nuclear Waste Policy Act of 1982, or the 
Nuclear Waste Policy Act. Owners of nuclear plants, including the owners of STP, had been required to enter into contracts 
setting out the obligations of the owners and the U.S. DOE, including the fees to be paid by the owners for the U.S. DOE's 
services to license a spent fuel repository. Effective May 16, 2014, the U.S. DOE stopped collecting the fees.  

On February 5, 2013, STPNOC entered into a settlement agreement with the U.S. DOE for payment of damages relating 
to the U.S. DOE's failure to accept SNF and HLW under the Nuclear Waste Policy Act through December 31, 2013, which was 
extended through an addendum dated January 24, 2014, to December 31, 2016.  On December 12, 2016, STPNOC received the 
federal government's offer of another three-year extension of payment for continued failure to accept SNF and HLW.  The 
proposal was reviewed and accepted. There are no facilities for the reprocessing or permanent disposal of SNF currently in 
operation in the U.S., nor has the NRC licensed any such facilities. STPNOC currently stores all SNF generated by its nuclear 
generating facilities in on-site storage pools.  Since STPNOC's SNF storage pools do not have sufficient storage capacity for 
the life of the units, STPNOC is proceeding to construct dry cask storage capability on-site. STPNOC plans to continue to assert 
claims against the U.S. DOE for damages relating to the U.S. DOE's failure to accept SNF and HLW.

Under the federal Low-Level Radioactive Waste Policy Act of 1980, as amended, the state of Texas is required to provide, 
either on its own or jointly with other states in a compact, for the disposal of all low-level radioactive waste generated within 
the state.  STP's warehouse capacity is adequate for on-site storage until a site in Andrews County, Texas becomes fully operational. 

Water 

Clean  Water  Act  —  The  Company  is  required  under  the  CWA  to  comply  with  intake  and  discharge  requirements, 
requirements for technological controls and operating practices.  As with air quality regulations, federal and state water regulations 
have become more stringent and imposed new requirements.  

Once Through Cooling Regulation — In August 2014, EPA finalized the regulation regarding the use of water for once 
through cooling at existing facilities to address impingement and entrainment concerns.  NRG anticipates that more stringent 
requirements will be incorporated into some of its water discharge permits over the next several years as NPDES permits are 
renewed.

Effluent Limitations Guidelines — In November 2015, the EPA revised the Effluent Limitations Guidelines for Steam 
Electric Generating Facilities, which would have imposed more stringent requirements (as individual permits were renewed) 
for wastewater streams from flue gas desulfurization, or FGD, fly ash, bottom ash, and flue gas mercury control. In April 2017, 
the EPA granted two petitions to reconsider the rule and also administratively stayed some of the deadlines. On September 18, 
2017, the EPA promulgated a final rule that (i) postpones the compliance dates to preserve the status quo for FGD wastewater 
and bottom ash transport water by two years to November 2020 until the EPA completes its next rulemaking and (ii) withdrew 
the April 2017 administrative stay. The legal challenges have been suspended while the EPA reconsiders and likely modifies the 
rule. Accordingly, the Company has largely eliminated its estimate of the environmental capital expenditures that would have 
been required to comply with permits incorporating the revised guidelines. The Company will revisit these estimates after the 
rule is revised. 

Regional Environmental Developments

New Source Review —  In 2007, Midwest Generation received an NOV from the EPA alleging that past work at Crawford, 
Fisk,  Joliet,  Powerton,  Waukegan  and  Will  County  generating  stations  violated  NSR  and  other  regulations.  These  alleged 
violations are the subject of litigation described in Item 15 — Note 22, Commitments and Contingencies.  Additionally, in April 
2013, the Connecticut Department of Energy and Environmental Protection issued four NOVs alleging that past work at oil-
fired combustion turbines at the Torrington Terminal, Franklin, Branford and Middletown generating stations violated regulations 
regarding NSR. 

Burton Island Old Ash Landfill — In January 2006, NRG's Indian River Power LLC was notified that it may be a potentially 
responsible party with respect to Burton Island Old Ash Landfill, a historic captive landfill located at the Indian River facility.  
On October 1, 2007, NRG signed an agreement with DNREC to investigate the site through the Voluntary Clean-up Program, 
or the VCP.  On February 4, 2008, DNREC issued findings that no further action was required in relation to surface water and 
that a previously planned shoreline stabilization project would satisfactorily address shoreline erosion.  The landfill itself required 
a Remedial Investigation and Feasibility Study to determine the type and scope of any additional required work.  DNREC 
approved the Feasibility Study in December 2012.  In January 2013, DNREC proposed a remediation plan based on the Feasibility 
Study.  The remediation plan was approved in October 2013.  In December 2015, DNREC approved the Company's remediation 
design,  the  Company's  Closure  Report  and  the  Company's  Long Term  Stewardship  Plan. The  cost  of  completing  the  work 
required by the approved remediation plan is consistent with amounts budgeted in early 2016 and remediation was completed 
in 2017.  The estimated cost to comply with the Long-Term Stewardship Plan was added to the liability in December 2016.  

In  addition  to  the VCP,  on  May  29,  2008,  DNREC  requested  that  NRG's  Indian  River  Power  LLC  participate  in  the 
development  and  performance  of  a  Natural  Resource  Damage Assessment  at  the  Burton  Island  Old Ash  Landfill.    NRG  is 
currently working with DNREC and other trustees to close out the assessment process. 

RGGI — The Company operates generating units in Connecticut, Delaware, Maryland, and New York that are subject to 
RGGI, which is a regional cap and trade system. In 2013, each of these states finalized a rule that reduced and will continue to 
reduce the number of allowances through 2020. The nine RGGI states re-evaluated the program and published a model rule to 
further reduce the number of allowances. The revisions being currently contemplated could adversely impact NRG's results of 
operations, financial condition and cash flows. 

Texas Regional Haze — On October 17, 2017, the EPA promulgated a final rule creating a Texas-only SO2 cap-and-trade 
program to address regional haze. The program is scheduled to begin on January 1, 2019. Several of the Company's units in 
Texas will be affected by this rule. The rule has been challenged by several environmental groups in the Fifth Circuit of the U.S. 
Court of Appeals.

Customers

NRG sells to a wide variety of customers. No individual customer accounted for 10% or more of NRG's total revenue in 
2017. The Company owns and operates power plants to generate and sell power to wholesale customers such as utilities and 
other intermediaries. The Company also directly sells to end-use customers in the residential, commercial and industrial sectors.  
NRG also receives significant revenues from PJM in its capacity as the regional transmission organization for the PJM footprint.

Employees

As  of  December 31,  2017,  NRG  and  its  consolidated  subsidiaries,  including  NRG Yield,  Inc.,  had  5,940  employees, 
approximately 24% of whom were covered by U.S. bargaining agreements. During 2017, the Company did not experience any 
labor stoppages or labor disputes at any of its facilities.

Available Information

NRG's annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments to 
those reports filed or furnished pursuant to section 13(a) or 15(d) of the Exchange Act are available free of charge through the 
Company's website, www.nrg.com, as soon as reasonably practicable after they are electronically filed with, or furnished to, the 
SEC.  The Company also routinely posts press releases, presentations, webcasts, sustainability reports and other information 
regarding the Company on the Company's website. The information posted on the Company's website is not a part of this report. 

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Item 1A — Risk Factors Related to NRG Energy, Inc.

Risks Related to the Operation of NRG's Business

The GenOn Entities filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code, and NRG is subject to the 
risks and uncertainties associated with bankruptcy proceedings. 

On the Petition Date, the GenOn Entities filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code. GenOn 

Mid-Atlantic, as well as its consolidated subsidiaries, and REMA, did not file for relief under Chapter 11. 

NRG is subject to a number of risks and uncertainties associated with the Chapter 11 Cases, which may lead to potential 
adverse effects on NRG’s business, results of operations, or financial condition. NRG cannot assure you of the outcome of the 
Chapter 11 Cases. Potential risks to NRG associated with the Chapter 11 Cases include the following:

• 

• 

• 

the length of time the GenOn Entities will operate under the Chapter 11 proceedings and their ability to successfully 
emerge, including with respect to obtaining any necessary regulatory approvals;

the ability of the GenOn Entities to consummate their plan of reorganization;

risks associated with third party motions, proceedings and litigation in the Chapter 11 proceedings, which may interfere 
with the GenOn Entities’ plan of reorganization;

•  NRG’s  and  the  GenOn  Entities’  ability  to  manage  contracts  that  are  critical  to  NRG’s  operations,  and  to  obtain  and 

maintain appropriate credit and other terms with customers, suppliers and service providers;

•  NRG’s ability to attract, retain and motivate key employees;

•  NRG’s ability to fund and execute its business plan;

• 

the disposition or resolution of all pre-petition claims against NRG and the GenOn Entities; and

•  NRG’s ability to maintain existing customers and vendor relationships and expand sales to new customers.

The Settlement Agreement may not be consummated if certain conditions are not met. If the Settlement Agreement is not 
consummated, NRG may not be entitled to receive certain benefits contemplated by the Restructuring Support Agreement and 
plan of reorganization.

Under the Restructuring Support Agreement to which GenOn, NRG and certain of GenOn's and GenOn Americas Generation's 
senior unsecured noteholders are parties, each of them agreed to support Bankruptcy Court approval of the Settlement Agreement, 
subject to conditions. 

While the Bankruptcy Court approved the Settlement Agreement and confirmed the proposed plan of reorganization on 
December 12, 2017, there can be no assurance that the conditions to the effectiveness of either the Settlement Agreement or plan 
of reorganization will be satisfied. In addition, GenOn is entitled to terminate the Restructuring Support Agreement and consider 
alternative  transactions  in  accordance  with  its  fiduciary  duties.  If  the  Settlement Agreement  or  plan  of  reorganization  is  not 
consummated, NRG may not receive certain of the benefits contemplated by the Restructuring Support Agreement.

The Chapter 11 Cases may disrupt NRG's business and may materially and adversely affect NRG's operations.

NRG has attempted to minimize the adverse effect of the GenOn Entities’ Chapter 11 Cases on NRG's relationships with its 
employees, suppliers, customers and other parties. Nonetheless, NRG's relationships with its employees, suppliers, customers and 
other parties may be adversely impacted by negative publicity or otherwise and NRG's operations could be materially and adversely 
affected. In addition, the Chapter 11 Cases could negatively affect NRG's ability to attract new employees and retain existing high 
performing employees or executives, which could materially and adversely affect NRG's operations.

As a result of the Chapter 11 Cases, NRG's historical financial information will not be indicative of NRG's future financial 
performance.

NRG's corporate structure will be significantly altered under any plan of reorganization. As of June 14, 2017, GenOn and 
its consolidated subsidiaries were deconsolidated from NRG's financial statements. Consequently, NRG's results of operations 
following  the  deconsolidation  will  not  be  comparable  to  the  financial  condition  and  results  of  operations  reflected  in  NRG's 
historical financial statements for periods prior to the deconsolidation.

NRG adopted and initiated the Transformation Plan. If the Transformation Plan does not achieve its expected benefits, there 
could be negative impacts to NRG’s business, results of operations and financial condition. 

NRG adopted and initiated the Transformation Plan, designed to significantly strengthen earnings and cost competitiveness, 
lower risk and volatility, and create significant shareholder value. The three-part, three-year plan is comprised of the following 
components: (i) operations and cost excellence; (ii) portfolio optimization; and (iii) capital structure and allocation enhancements.

As part of the Transformation, Plan, on February 6, 2018, NRG and GIP entered into a purchase and sale agreement for NRG 
to sell its ownership in NRG Yield, Inc. and its renewables platform to GIP for cash of $1.375 billion, subject to certain adjustments. 
Also on February 6, 2018, NRG and Cleco entered into a purchase and sale agreement for NRG to sell its South Central business 
to Cleco for cash of $1.0 billion, subject to certain adjustments. Both of these transactions are subject to various closing conditions 
and approvals. 

NRG may be unable to fully implement the components of the Transformation Plan, in which case, NRG would not realize 
the anticipated benefits. Alternatively, such components of the Transformation Plan, even if implemented, may not result in the 
anticipated benefits to NRG’s business, results of operations and financial condition in a timely manner if at all. Further, NRG 
could  experience  unexpected  delays,  business  disruptions  resulting  from  supporting  these  initiatives  during  and  following 
completion of these activities, decreased productivity, adverse effects on employee morale and employee turnover as a result of 
such initiatives, any of which may impair NRG’s ability to achieve anticipated results or otherwise harm NRG’s business, results 
of operations and financial condition. 

The proposed sales of assets to GIP and Cleco could be delayed or fail to close, or otherwise cause unanticipated issues, which 
could adversely affect NRG's business, results of operations and financial condition.

As described above, on February 6, 2018, NRG entered into a purchase and sale agreement with GIP pursuant to which NRG 
agreed to sell its ownership interest in NRG Yield, Inc. and NRG’s Renewables platform.  Also on February 6, 2018, NRG and 
Cleco entered into a purchase and sale agreement for Cleco to purchase NRG's South Central business.  The proposed sales are 
subject to numerous closing conditions, including, among others, the receipt of certain consents and regulatory approvals.  A 
number of the closing conditions are outside of NRG’s control and it cannot be predicted with certainty whether all of the required 
closing conditions will be satisfied or waived or if other uncertainties may arise.  In addition, regulators could impose additional 
requirements or obligations as conditions for their approval, which may be burdensome.  If such closing conditions are not met 
or additional obligations are imposed, the proposed sales may not be consummated at all or may encounter delays or other roadblocks 
that are not currently anticipated. Planning and executing the proposed separation and sale of NRG’s renewables platform will 
require  significant  time,  effort,  and  expense,  and  may  divert  management’s  attention  from  other  aspects  of  NRG’s  business 
operations, and any delays in completion of the proposed sale may increase the amount of time, effort, and expense that NRG 
devotes to the transactions, which could adversely affect NRG’s other operations. The current price of NRG’s stock may reflect 
an assumption that the pending sales will occur and failure to complete the proposed sales could result in a decline in NRG’s stock 
price. In addition, even if NRG completes the proposed sales, the actual impacts on NRG's business and financial results may 
differ from the anticipated results.

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NRG's financial performance may be impacted by price fluctuations in the wholesale power and natural gas, coal and oil 
markets and other market factors that are beyond the Company's control.

Market  prices  for  power,  capacity,  ancillary  services,  natural  gas,  coal  and  oil  are  unpredictable  and  tend  to  fluctuate 
substantially. Unlike most other commodities, electric power can only be stored on a very limited basis and generally must be 
produced  concurrently  with  its  use. As  a  result,  power  prices  are  subject  to  significant  volatility  due  to  supply  and  demand 
imbalances, especially in the day-ahead and spot markets. Long- and short-term power prices may also fluctuate substantially due 
to other factors outside of the Company's control, including:

• 

• 

• 

• 

• 

• 

changes in generation capacity in the Company’s markets, including the addition of new supplies of power as a result of 
the development of new plants, expansion of existing plants, the continued operation of uneconomic power plants due 
to state subsidies, or additional transmission capacity;

environmental regulations and legislation;

electric supply disruptions, including plant outages and transmission disruptions;

changes in power transmission infrastructure;

fuel transportation capacity constraints or inefficiencies;

changes in law, including judicial decisions;

•  weather conditions, including extreme weather conditions and seasonal fluctuations, including the effects of climate 

change;

• 

• 

• 

• 

• 

• 

• 

• 

• 

changes in commodity prices and the supply of commodities, including but not limited to natural gas, coal and oil;

changes in the demand for power or in patterns of power usage, including the potential development of demand-side 
management tools and practices, distributed generation, and more efficient end-use technologies;

development of new fuels, new technologies and new forms of competition for the production of power;

fuel price volatility;

economic and political conditions;

regulations and actions of the ISOs and RTOs; 

federal and state power regulations and legislation;

changes in prices related to RECs; and

changes in capacity prices and capacity markets.

Such factors and the associated fluctuations in power prices have affected the Company's wholesale power operating results 

in the past and will continue to do so in the future.

Many of NRG's power generation facilities operate, wholly or partially, without long-term power sale agreements.

Many of NRG's facilities operate as "merchant" facilities without long-term power sales agreements for some or all of their 
generating capacity and output and therefore are exposed to market fluctuations. Without the benefit of long-term power sales 
agreements for these assets, NRG cannot be sure that it will be able to sell any or all of the power generated by these facilities at 
commercially attractive rates or that these facilities will be able to operate profitably. This could lead to future impairments of the 
Company's property, plant and equipment or to the closing of certain of its facilities, resulting in economic losses and liabilities, 
which could have a material adverse effect on the Company's results of operations, financial condition or cash flows.

NRG's costs, results of operations, financial condition and cash flows could be adversely impacted by disruption of its fuel 
supplies.

NRG relies on natural gas, coal and oil to fuel a majority of its power generation facilities. Delivery of these fuels to the 
facilities  is  dependent  upon  the  continuing  financial  viability  of  contractual  counterparties  as  well  as  upon  the  infrastructure 
(including rail lines, rail cars, barge facilities, roadways, riverways and natural gas pipelines) available to serve each generation 
facility. As a result, the Company is subject to the risks of disruptions or curtailments in the production of power at its generation 
facilities if no fuel is available at any price or if a counterparty fails to perform or if there is a disruption in the fuel delivery 
infrastructure. 

NRG has sold forward a substantial portion of its coal and nuclear power in order to lock in long-term prices that it deemed 
to be favorable at the time it entered into the forward power sales contracts. In order to hedge its obligations under these forward 
power sales contracts, the Company has entered into long-term and short-term contracts for the purchase and delivery of fuel. 
Many of the forward power sales contracts do not allow the Company to pass through changes in fuel costs or discharge the power 
sale obligations in the case of a disruption in fuel supply due to force majeure events or the default of a fuel supplier or transporter. 
Disruptions in the Company's fuel supplies may therefore require it to find alternative fuel sources at higher costs, to find other 
sources of power to deliver to counterparties at a higher cost, or to pay damages to counterparties for failure to deliver power as 
contracted. Any such event could have a material adverse effect on the Company's financial performance.

NRG also buys significant quantities of fuel on a short-term or spot market basis. Prices for all of the Company's fuels 
fluctuate, sometimes rising or falling significantly over a relatively short period of time. The price NRG can obtain for the sale of 
energy may not rise at the same rate, or may not rise at all, to match a rise in fuel or delivery costs. This may have a material 
adverse effect on the Company's financial performance. Changes in market prices for natural gas, coal and oil may result from the 
following:

•  weather conditions;

• 

• 

• 

• 

• 

• 

• 

• 

• 

seasonality;

demand for energy commodities and general economic conditions;

disruption or other constraints or inefficiencies of electricity, gas or coal transmission or transportation;

additional generating capacity;

availability and levels of storage and inventory for fuel stocks;

natural gas, crude oil, refined products and coal production levels;

changes in market liquidity;

federal, state and foreign governmental regulation and legislation; and

the creditworthiness and liquidity and willingness of fuel suppliers/transporters to do business with the Company.

NRG's plant operating characteristics and equipment, particularly at its coal-fired plants, often dictate the specific fuel quality 
to be combusted. The availability and price of specific fuel qualities may vary due to supplier financial or operational disruptions, 
transportation disruptions and force majeure. At times, coal of specific quality may not be available at any price, or the Company 
may not be able to transport such coal to its facilities on a timely basis. In this case, the Company may not be able to run the coal 
facility even if it would be profitable. Operating a coal facility with different quality coal can lead to emission or operating problems. 
If the Company had sold forward the power from such a coal facility, it could be required to supply or purchase power from 
alternate sources, perhaps at a loss. This could have a material adverse impact on the financial results of specific plants and on the 
Company's results of operations.

Changes in the price of coal and natural gas could cause the Company to hold excess coal inventories and incur contract 
termination costs. 

Low natural gas prices can cause natural gas to be the more cost-competitive fuel compared to coal for generating electricity. 
Because the Company enters into guaranteed supply contracts to provide for the amount of coal needed to operate its base load 
coal-fired generating facilities, the Company may experience periods where it holds excess amounts of coal if fuel pricing results 
in the Company reducing or idling coal-fired generating facilities. In addition, the Company may incur costs to terminate supply 
contracts for coal in excess of its generating requirements. 

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Volatile power supply costs and demand for power could adversely affect the financial performance of NRG's retail businesses.

Although NRG is the primary provider of its retail businesses' wholesale electricity supply requirements, the retail businesses 
purchase a significant portion of their supply requirements from third parties. As a result, financial performance depends on the 
ability to obtain adequate supplies of electric generation from third parties at prices below the prices it charges its customers. 
Consequently, the Company's earnings and cash flows could be adversely affected in any period in which the retail businesses' 
wholesale electricity supply costs rise at a greater rate than the rates it charges to customers. The price of wholesale electricity 
supply purchases associated with the retail businesses' energy commitments can be different than that reflected in the rates charged 
to customers due to, among other factors:

• 

• 

• 

• 

• 

varying supply procurement contracts used and the timing of entering into related contracts;

subsequent changes in the overall price of natural gas;

daily, monthly or seasonal fluctuations in the price of natural gas relative to the 12-month forward prices;

transmission constraints and the Company's ability to move power to its customers; and

changes in market heat rate (i.e., the relationship between power and natural gas prices).

The retail businesses' earnings and cash flows could also be adversely affected in any period in which its customers' actual 
usage of electricity significantly varies from the forecasted usage, which could occur due to, among other factors, weather events, 
competition and economic conditions.

There may be periods when NRG will not be able to meet its commitments under forward sale obligations at a reasonable cost 
or at all.

A substantial portion of the output from NRG's coal and nuclear facilities has been sold forward under fixed price power 
sales contracts through 2018 and the Company also sells forward the output from its intermediate and peaking facilities when it 
is commercially advantageous to do so. The Company also sells fixed price gas as a proxy for power. Because the obligations 
under most of these agreements are not contingent on a unit being available to generate power, NRG is generally required to deliver 
power to the buyer, even in the event of a plant outage, fuel supply disruption or a reduction in the available capacity of the unit. 
To the extent that the Company does not have sufficient lower-cost capacity to meet its commitments under its forward sale 
obligations, the Company would be required to supply replacement power either by running its other, higher cost power plants or 
by obtaining power from third-party sources at market prices that could substantially exceed the contract price. If NRG fails to 
deliver the contracted power, it would be required to pay the difference between the market price at the delivery point and the 
contract price, and the amount of such payments could be substantial.

In the Gulf Coast region, NRG has long-term contracts with rural cooperatives that require it to serve all of the cooperatives' 
requirements at prices for energy that generally reflect the cost of coal-fired generation.  On December 19, 2013, the Entergy 
region joined the MISO RTO, which employs a two settlement market in which NRG submits bids for energy to cover its load 
obligations  and  submits  offers  to  sell  energy  from  its  resources.   Given  the  “full  requirements”  obligation  contained  in  the 
cooperative contracts, and the possibility of unplanned forced outages of its generation, NRG may be exposed to locational market 
prices as a net buyer of energy for certain periods, which could have a negative impact on NRG's financial returns from its Gulf 
Coast region.

NRG's trading operations and use of hedging agreements could result in financial losses that negatively impact its results of 
operations.

The Company typically enters into hedging agreements, including contracts to purchase or sell commodities at future dates 
and at fixed prices, to manage the commodity price risks inherent in its power generation operations. These activities, although 
intended to mitigate price volatility, expose the Company to other risks. When the Company sells power forward, it gives up the 
opportunity to sell power at higher prices in the future, which not only may result in lost opportunity costs but also may require 
the Company to post significant amounts of cash collateral or other credit support to its counterparties. The Company also relies 
on counterparty performance under its hedging agreements and is exposed to the credit quality of its counterparties under those 
agreements. Further, if the values of the financial contracts change in a manner that the Company does not anticipate, or if a 
counterparty fails to perform under a contract, it could harm the Company's business, operating results or financial position.

NRG does not typically hedge the entire exposure of its operations against commodity price volatility. To the extent it does 
not hedge against commodity price volatility, the Company's results of operations and financial position may be improved or 
diminished based upon movement in commodity prices.

NRG may engage in trading activities, including the trading of power, fuel and emissions allowances that are not directly 
related to the operation of the Company's generation facilities or the management of related risks. These trading activities take 
place in volatile markets and some of these trades could be characterized as speculative. The Company would expect to settle 
these trades financially rather than through the production of power or the delivery of fuel. This trading activity may expose the 
Company to the risk of significant financial losses which could have a material adverse effect on its business and financial condition.

NRG may not have sufficient liquidity to hedge market risks effectively.

The Company is exposed to market risks through its power marketing business, which involves the sale of energy, capacity 
and related products and the purchase and sale of fuel, transmission services and emission allowances. These market risks include, 
among other risks, volatility arising from location and timing differences that may be associated with buying and transporting fuel, 
converting fuel into energy and delivering energy to a buyer.

NRG  undertakes  these  marketing  activities  through  agreements  with  various  counterparties.  Many  of  the  Company's 
agreements with counterparties include provisions that require the Company to provide guarantees, offset of netting arrangements, 
letters of credit, a first lien on assets and/or cash collateral to protect the counterparties against the risk of the Company's default 
or insolvency. The amount of such credit support that must be provided typically is based on the difference between the price of 
the commodity in a given contract and the market price of the commodity. Significant movements in market prices can result in 
the Company being required to provide cash collateral and letters of credit in very large amounts. The effectiveness of the Company's 
strategy may depend on the amount of collateral available to enter into or maintain these contracts, and liquidity requirements may 
be greater than the Company anticipates or will be able to meet. Without a sufficient amount of working capital to post as collateral 
in support of performance guarantees or as a cash margin, the Company may not be able to manage price volatility effectively or 
to implement its strategy. An increase in the amount of letters of credit or cash collateral required to be provided to the Company's 
counterparties may negatively affect the Company's liquidity and financial condition.

Further, if any of NRG's facilities experience unplanned outages, the Company may be required to procure replacement 
power  at  spot  market  prices  to  fulfill  contractual  commitments.  Without  adequate  liquidity  to  meet  margin  and  collateral 
requirements, the Company may be exposed to significant losses, may miss significant opportunities, and may have increased 
exposure to the volatility of spot markets.

The accounting for NRG's hedging activities may increase the volatility in the Company's quarterly and annual financial 
results.

NRG engages in commodity-related marketing and price-risk management activities in order to financially hedge its exposure 

to market risk with respect to electricity sales from its generation assets, fuel utilized by those assets and emission allowances.

NRG generally attempts to balance its fixed-price physical and financial purchases and sales commitments in terms of 
contract volumes and the timing of performance and delivery obligations through the use of financial and physical derivative 
contracts. These derivatives are accounted for in accordance with the FASB ASC 815, Derivatives and Hedging, or ASC 815, 
which requires the Company to record all derivatives on the balance sheet at fair value with changes in the fair value resulting 
from fluctuations in the underlying commodity prices immediately recognized in earnings, unless the derivative qualifies for cash 
flow hedge accounting treatment. Whether a derivative qualifies for cash flow hedge accounting treatment depends upon it meeting 
specific criteria used to determine if the cash flow hedge is and will remain appropriate for the term of the derivative. All economic 
hedges may not necessarily qualify for cash flow hedge accounting treatment. As a result, the Company's quarterly and annual 
results are subject to significant fluctuations caused by changes in market prices.

Competition in wholesale power markets may have a material adverse effect on NRG's results of operations, cash flows and 
the market value of its assets.

NRG has numerous competitors in all aspects of its business, and additional competitors may enter the industry. Because 
many of the Company's facilities are old, newer plants owned by the Company's competitors are often more efficient than NRG's 
aging plants, which may put some of the Company's plants at a competitive disadvantage to the extent the Company's competitors 
are able to consume the same or less fuel as the Company's plants consume. Over time, the Company's plants may be squeezed 
out of their markets or may be unable to compete with these more efficient plants.

In NRG's power marketing and commercial operations, NRG competes on the basis of its relative skills, financial position 
and access to capital with other providers of electric energy in the procurement of fuel and transportation services, and the sale of 
capacity, energy and related products. In order to compete successfully, the Company seeks to aggregate fuel supplies at competitive 
prices from different sources and locations and to efficiently utilize transportation services from third-party pipelines, railways 
and other fuel transporters and transmission services from electric utilities.

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Other companies with which NRG competes may have greater liquidity, greater access to credit and other financial resources, 
lower cost structures, more effective risk management policies and procedures, greater ability to incur losses, longer-standing 
relationships with customers, greater potential for profitability from ancillary services or greater flexibility in the timing of their 
sale of generation capacity and ancillary services than NRG does.

NRG's competitors may be able to respond more quickly to new laws or regulations or emerging technologies, or to devote 
greater resources to the construction, expansion or refurbishment of their power generation facilities than NRG can. In addition, 
current and potential competitors may make strategic acquisitions or establish cooperative relationships among themselves or with 
third parties. Accordingly, it is possible that new competitors or alliances among current and new competitors may emerge and 
rapidly gain significant market share. There can be no assurance that NRG will be able to compete successfully against current 
and future competitors, and any failure to do so would have a material adverse effect on the Company's business, financial condition, 
results of operations and cash flow.

Operation of power generation facilities involves significant risks and hazards customary to the power industry that could have 
a material adverse effect on NRG's revenues and results of operations, and NRG may not have adequate insurance to cover 
these risks and hazards.

The ongoing operation of NRG's facilities involves risks that include the breakdown or failure of equipment or processes, 
performance below expected levels of output or efficiency and the inability to transport the Company's product to its customers 
in an efficient manner due to a lack of transmission capacity. Unplanned outages of generating units, including extensions of 
scheduled outages due to mechanical failures or other problems occur from time to time and are an inherent risk of the Company's 
business. Unplanned outages typically increase the Company's operation and maintenance expenses and may reduce the Company's 
revenues as a result of selling fewer MWh or non-performance penalties or require NRG to incur significant costs as a result of 
running one of its higher cost units or obtaining replacement power from third parties in the open market to satisfy the Company's 
forward power sales obligations. NRG's inability to operate the Company's plants efficiently, manage capital expenditures and 
costs, and generate earnings and cash flow from the Company's asset-based businesses could have a material adverse effect on 
the Company's results of operations, financial condition or cash flows. While NRG maintains insurance, obtains warranties from 
vendors and obligates contractors to meet certain performance levels, the proceeds of such insurance, warranties or performance 
guarantees may not be adequate to cover the Company's lost revenues, increased expenses or liquidated damages payments should 
the Company experience equipment breakdown or non-performance by contractors or vendors.

Power generation involves hazardous activities, including acquiring, transporting and unloading fuel, operating large pieces 
of  rotating  equipment  and  delivering  electricity  to  transmission  and  distribution  systems.  In  addition  to  natural  risks  such  as 
earthquake, flood, lightning, hurricane and wind, other hazards, such as fire, explosion, structural collapse and machinery failure 
are inherent risks in the Company's operations. These and other hazards can cause significant personal injury or loss of life, severe 
damage to and destruction of property, plant and equipment, contamination of, or damage to, the environment and suspension of 
operations. The occurrence of any one of these events may result in NRG being named as a defendant in lawsuits asserting claims 
for substantial damages, including for environmental cleanup costs, personal injury and property damage and fines and/or penalties. 
NRG maintains an amount of insurance protection that it considers adequate, but the Company cannot provide any assurance that 
its insurance will be sufficient or effective under all circumstances and against all hazards or liabilities to which it may be subject. 
A successful claim for which the Company is not fully insured could hurt its financial results and materially harm NRG's financial 
condition. NRG cannot provide any assurance that its insurance coverage will continue to be available at all or at rates or on terms 
similar to those presently available. Any losses not covered by insurance could have a material adverse effect on the Company's 
financial condition, results of operations or cash flows.

Maintenance,  expansion  and  refurbishment  of  power  generation  facilities  involve  significant  risks  that  could  result  in 
unplanned power outages or reduced output and could have a material adverse effect on NRG's results of operations, cash 
flows and financial condition.

Many of NRG's facilities are old and require periodic maintenance and repair. Any unexpected failure, including failure 

associated with breakdowns, forced outages or any unanticipated capital expenditures could result in reduced profitability.

NRG cannot be certain of the level of capital expenditures that will be required due to changing environmental and safety 
laws (including changes in the interpretation or enforcement thereof), needed facility repairs and unexpected events (such as natural 
disasters or terrorist attacks). The unexpected requirement of large capital expenditures could have a material adverse effect on 
the Company's liquidity and financial condition.

If NRG significantly modifies a unit, the Company may be required to install the best available control technology or to 
achieve the lowest achievable emission rates as such terms are defined under the new source review provisions of the CAA, which 
would likely result in substantial additional capital expenditures.

The Company may incur additional costs or delays in the development, construction and operation of new plants, improvements 
to existing plants, or the implementation of environmental control equipment at existing plants and may not be able to recover 
their investment or complete the project.

The  Company  is  developing  or  constructing  new  generation  facilities,  improving  its  existing  facilities  and  adding 
environmental controls to its existing facilities. The development, construction, expansion, modification and refurbishment of 
power generation facilities involve many risks, including:

• 

• 

• 

• 

• 

• 

inability to obtain sufficient funding on reasonable terms and/or necessary government financial incentives;

delays in obtaining necessary permits and licenses;

inability to sell down interests in a project or develop successful partnering relationships;

environmental remediation of soil or groundwater at contaminated sites;

interruptions to dispatch at the Company's facilities;

supply interruptions;

•  work stoppages;

• 

labor disputes;

•  weather interferences;

• 

• 

• 

• 

unforeseen engineering, environmental and geological problems, including those related to climate change;

unanticipated cost overruns;

exchange rate risks; and

failure of contracting parties to perform under contracts, including EPC contractors.

Any of these risks could cause NRG's financial returns on new investments to be lower than expected or could cause the 
Company to operate below expected capacity or availability levels, which could result in lost revenues, increased expenses, higher 
maintenance costs and penalties. Insurance is maintained to protect against these risks, warranties are generally obtained for limited 
periods relating to the construction of each project and its equipment in varying degrees, and contractors and equipment suppliers 
are obligated to meet certain performance levels. The insurance, warranties or performance guarantees, however, may not be 
adequate to cover increased expenses. As a result, a project may cost more than projected and may be unable to fund principal and 
interest payments under its construction financing obligations, if any. A default under such a financing obligation could result in 
the Company losing its interest in a power generation facility. 

Furthermore, where the Company has partnering relationships with a third party, the Company is subject to the viability and 
performance of the third party.  The Company's inability to find a replacement contracting party, particularly an EPC contractor, 
where the original contracting party has failed to perform, could result in the abandonment of the development and/or construction 
of such project, while the Company could remain obligated on other agreements associated with the project, including PPAs.

If the Company is unable to complete the development or construction of a facility or environmental control, or decides to 
delay, downsize, or cancel such project, it may not be able to recover its investment in that facility or environmental control.  
Furthermore, if construction projects are not completed according to specification, the Company may incur liabilities and suffer 
reduced plant efficiency, higher operating costs and reduced net income.

NRG and its subsidiaries have guaranteed the performance of third parties, which may result in substantial costs in the event 
of non-performance. 

NRG and its subsidiaries have issued certain guarantees of the performance of others, which obligate NRG and its subsidiaries 
to perform in the event that the third parties do not perform. In the event of non-performance by the third parties, NRG could incur 
substantial cost to fulfill their obligations under these guarantees. Such performance guarantees could have a material impact on 
the operating results, financial condition, or cash flows of the Company. 

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The Company's development programs are subject to financing and public policy risks that could adversely impact NRG's 
financial performance or result in the abandonment of such development projects.

While NRG currently intends to develop and finance its more capital intensive projects on a non-recourse or limited recourse 
basis through separate project financed entities and intends to seek additional investments in most of these projects from third 
parties, NRG anticipates that it will need to make significant equity investments in these projects. NRG may also decide to develop 
and finance some of the projects using corporate financial resources rather than non-recourse debt, which could subject NRG to 
significant capital expenditure requirements and to risks inherent in the development and construction of new generation facilities. 
In addition to providing some or all of the equity required to develop and build the proposed projects, NRG's ability to finance 
these projects on a non-recourse basis is contingent upon a number of factors, including the terms of the EPC contracts, construction 
costs,  PPAs  and  fuel  procurement  contracts,  capital  markets  conditions,  the  availability  of  tax  credits  and  other  government 
incentives for certain new technologies. To the extent NRG is not able to obtain non-recourse financing for any project or should 
credit rating agencies attribute a material amount of the project finance debt to NRG's credit, the financing of the development 
projects could have a negative impact on the credit ratings of NRG.

NRG may also choose to undertake the repowering, refurbishment or upgrade of current facilities based on the Company's 
assessment that such activity will provide adequate financial returns. Such projects often require several years of development 
and capital expenditures before commencement of commercial operations, and key assumptions underpinning a decision to make 
such an investment may prove incorrect, including assumptions regarding construction costs, timing, available financing and future 
fuel and power prices.

Furthermore, the viability of the Company's renewable development projects are contingent on public policy mechanisms 
including production and investment tax credits, cash grants, loan guarantees, accelerated depreciation tax benefits, renewable 
portfolio standards, or RPS, and carbon-related mandates or controls. These mechanisms have been implemented at the state and 
federal levels to support the development of renewable generation, demand-side and smart grid, and other clean infrastructure 
technologies. The availability and continuation of public policy support mechanisms will drive a significant part of the economics 
and viability of the Company's development program and expansion into clean energy investments.

The Company’s renewables business has a pipeline of projects across the utility scale and distributed generation markets, 
including both organically developed projects and projects acquired from third-parties.  If a number of the projects fail to 
proceed  to  construction  or  are  not  completed,  the  Company’s  business,  financial  condition  or  operating  results  could  be 
materially adversely affected.

The  development  process  is  long  and  includes  many  steps  such  as  project  siting,  financing,  construction,  permitting, 
government approvals and the negotiation of project development agreements.  There can be no assurance that the projects in the 
Company’s renewables project pipeline will be completed on schedule or within budget, generate revenues, or receive the necessary 
financing for construction, among other risks. As the Company develops its renewables project pipeline, some of the projects in 
the pipeline may not be completed or proceed to construction as a result of various factors. These factors may include changes in 
applicable laws and regulations, including government incentives, environmental concerns regarding a project or changes in the 
economics related to a project, including the ability to finance a particular project. If a number of projects are not completed, the 
Company’s business, financial condition or operating results could be materially adversely affected.

Supplier and/or customer concentration at certain of NRG's facilities may expose the Company to significant financial credit 
or performance risks.

NRG often relies on a single contracted supplier or a small number of suppliers for the provision of fuel, transportation of 
fuel and other services required for the operation of certain of its facilities. If these suppliers cannot perform, the Company utilizes 
the marketplace to provide these services. There can be no assurance that the marketplace can provide these services as, when and 
where required or at comparable prices.

At times, NRG relies on a single customer or a few customers to purchase all or a significant portion of a facility's output, 
in some cases under long-term agreements that account for a substantial percentage of the anticipated revenue from a given facility. 
The Company has also hedged a portion of its exposure to power price fluctuations through forward fixed price power sales and 
natural gas price swap agreements. Counterparties to these agreements may breach or may be unable to perform their obligations. 
NRG may not be able to enter into replacement agreements on terms as favorable as its existing agreements, or at all. If the 
Company was unable to enter into replacement PPAs, the Company would sell its plants' power at market prices. If the Company 
is unable to enter into replacement fuel or fuel transportation purchase agreements, NRG would seek to purchase the Company's 
fuel requirements at market prices, exposing the Company to market price volatility and the risk that fuel and transportation may 
not be available during certain periods at any price.

The failure of any supplier or customer to fulfill its contractual obligations to NRG could have a material adverse effect on 
the Company's financial results. Consequently, the financial performance of the Company's facilities is dependent on the credit 
quality of, and continued performance by, suppliers and customers.

The Company's retail businesses may lose a significant number of retail customers due to competitive marketing activity by 
other retail electricity providers which could adversely affect the financial performance of the Company's retail businesses. 

The Company's retail businesses face competition for customers.  Competitors may offer different products, lower prices, 
and other incentives, which may attract customers away from NRG's retail businesses.  In some retail electricity markets, the 
principal competitor may be the incumbent utility.  The incumbent utility has the advantage of long-standing relationships with 
its customers and strong brand recognition.  Furthermore, NRG's retail businesses may face competition from a number of other 
energy service providers, other energy industry participants, or nationally branded providers of consumer products and services, 
who may develop businesses that will compete with NRG and its retail businesses. 

NRG relies on power transmission facilities that it does not own or control and that are subject to transmission constraints 
within a number of the Company's core regions. If these facilities fail to provide NRG with adequate transmission capacity, 
the Company may be restricted in its ability to deliver wholesale electric power to its customers and the Company may either 
incur additional costs or forego revenues. Conversely, improvements to certain transmission systems could also reduce revenues.

NRG depends on transmission facilities owned and operated by others to deliver the wholesale power it sells from the 
Company's power generation plants to its customers. If transmission is disrupted, or if the transmission capacity infrastructure is 
inadequate,  NRG's  ability  to  sell  and  deliver  wholesale  power  may  be  adversely  impacted.  If  a  region's  power  transmission 
infrastructure is inadequate, the Company's recovery of wholesale costs and profits may be limited. If restrictive transmission 
price regulation is imposed, the transmission companies may not have sufficient incentive to invest in expansion of transmission 
infrastructure.  The  Company  also  cannot  predict  whether  transmission  facilities  will  be  expanded  in  specific  markets  to 
accommodate competitive access to those markets.

In addition, in certain of the markets in which NRG operates, energy transmission congestion may occur and the Company 
may be deemed responsible for congestion costs if it schedules delivery of power between congestion zones during times when 
congestion occurs between the zones. If NRG were liable for such congestion costs, the Company's financial results could be 
adversely affected.

The Company has a significant amount of generation located in load pockets, making that generation valuable, particularly 
with respect to maintaining the reliability of the transmission grid. Expansion of transmission systems to reduce or eliminate these 
load pockets could negatively impact the value or profitability of the Company's existing facilities in these areas.

The Company’s use and enjoyment of real property rights for its projects may be adversely affected by the rights of lienholders 
and leaseholders that are superior to those of the grantors of those real property rights to the Company.

Solar and wind projects generally are, and are likely to be, located on land occupied by the project pursuant to long-term 
easements and leases. The ownership interests in the land subject to these easements and leases may be subject to mortgages 
securing loans or other liens (such as tax liens) and other easement and lease rights of third parties (such as leases of oil or mineral 
rights) that were created prior to the project’s easements and leases. As a result, the project’s rights under these easements or leases 
may be subject, and subordinate, to the rights of those third parties. The Company performs title searches and obtains title insurance 
to protect itself against these risks. Such measures may, however, be inadequate to protect the Company against all risk of loss of 
its rights to use the land on which the renewable projects are located, which could have a material adverse effect on the Company’s 
business, financial condition and results of operations.

One of the Company's subsidiaries, NRG Yield, Inc., is a publicly traded corporation, which may involve a greater exposure 
to legal liability than the Company's historic business operations. 

One of the Company's subsidiaries is NRG Yield, Inc., a publicly traded corporation. NRG's controlling voting interest in 
NRG Yield, Inc. and the position of certain of its executive officers that are serving on the Board of Directors of NRG Yield, Inc. 
or as executive officers may increase the possibility of claims of breach of fiduciary duties including claims of conflicts of interest 
related to NRG Yield, Inc. Any liability resulting from such claims could have a material adverse effect on NRG's future business, 
financial condition, results of operations and cash flows. 

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Because NRG owns less than a majority of the ownership interests of some of its project investments, the Company cannot 
exercise complete control over their operations.

The Company may potentially be affected by emerging technologies that may over time affect change in capacity markets and 
the energy industry overall with the inclusion of distributed generation and clean technology.  

NRG has limited control over the operation of some project investments and joint ventures because the Company's investments 
are in projects where it beneficially owns less than a majority of the ownership interests. NRG seeks to exert a degree of influence 
with respect to the management and operation of projects in which it owns less than a majority of the ownership interests by 
negotiating to obtain positions on management committees or to receive certain limited governance rights, such as rights to veto 
significant actions. However, the Company may not always succeed in such negotiations. NRG may be dependent on its co-
venturers to operate such projects. The Company's co-venturers may not have the level of experience, technical expertise, human 
resources management and other attributes necessary to operate these projects optimally. The approval of co-venturers also may 
be required for NRG to receive distributions of funds from projects or to transfer the Company's interest in projects.

NRG may be unable to integrate the operations of acquired entities in the manner expected.

NRG  enters  into  acquisitions  that  result  in  various  benefits,  including,  among  other  things,  cost  savings  and  operating 
efficiencies. Achieving the anticipated benefits of these acquisitions depends on whether the businesses can be integrated into 
NRG in an efficient and effective manner. The integration process could take longer than anticipated and could result in the loss 
of  valuable  employees,  the  disruption  of  NRG's  businesses,  processes  and  systems  or  inconsistencies  in  standards,  controls, 
procedures, practices, policies and compensation arrangements, any of which could adversely affect the Company's ability to 
achieve the anticipated benefits of the acquisitions. NRG may have difficulty addressing possible differences in corporate cultures 
and management philosophies. Failure to achieve these anticipated benefits could result in increased costs or decreases in the 
amount of expected revenues and could adversely affect NRG's future business, financial condition, operating results and prospects.

Future acquisition or disposition activities could involve unknown risks and may have materially adverse effects.

NRG may in the future make acquisitions or dispositions of businesses or assets or pursue other business activities, directly 
or indirectly through subsidiaries, that involve a number of risks. The acquisition of companies and assets is subject to substantial 
risks, including the failure to identify material problems during due diligence, the risk of over-paying for assets, the ability to 
retain customers and the inability to arrange financing for an acquisition as may be required or desired. Further, the integration 
and  consolidation  of  acquisitions  requires  substantial  human,  financial  and  other  resources  and,  ultimately,  the  Company's 
acquisitions  may  not  be  successfully  integrated.  In  the  case  of  dispositions,  such  risks  may  relate  to  employment  matters, 
counterparties, regulators and other stakeholders in the disposed business, risks relating to separating the disposed assets from 
NRG’s business, risks related to the management of NRG’s ongoing business, risks unknown to NRG at the time, and other 
financial, legal and operational risks related to such disposition. Any such risk may result in one or more costly disputes or litigation.  
There can be no assurances that any future acquisitions will perform as expected or that the returns from such acquisitions will 
support  the  indebtedness  incurred  to  acquire  them  or  the  capital  expenditures  needed  to  develop  them. There  can  also  be  no 
assurances that NRG will realize the anticipated benefits from any such dispositions. The failure to realize the anticipated returns 
or benefits from an acquisition or disposition could adversely affect NRG's results of operations, cash flows and financial condition.

NRG's business, financial condition and results of operations could be adversely impacted by strikes or work stoppages by its 
unionized employees or inability to replace employees as they retire.

As of December 31, 2017, approximately 24% of NRG's employees at its U.S. generation plants were covered by collective 
bargaining agreements. In the event that the Company's union employees strike, participate in a work stoppage or slowdown or 
engage in other forms of labor strife or disruption, NRG would be responsible for procuring replacement labor or the Company 
could experience reduced power generation or outages. Although NRG's ability to procure such labor is uncertain, contingency 
staffing planning is completed as part of each respective contract negotiations.  Strikes, work stoppages or the inability to negotiate 
future  collective  bargaining  agreements  on  favorable  terms  could  have  a  material  adverse  effect  on  the  Company's  business, 
financial condition, results of operations and cash flows. In addition, a number of the Company's employees at NRG's plants are 
close to retirement. The Company's inability to replace retiring workers could create potential knowledge and expertise gaps as 
such workers retire.

Changes in technology may impair the value of NRG's power plants.

Research and development activities are ongoing to provide alternative and more efficient technologies to produce power, 
including wind, photovoltaic (solar) cells, energy storage, and improvements in traditional technologies and equipment, such as 
more efficient gas turbines. Advances in these or other technologies could reduce the costs of power production to a level below 
what the Company has currently forecasted, which could adversely affect its cash flows, results of operations or competitive 
position.

Some emerging technologies like distributed renewable energy technologies, broad consumer adoption of electric vehicles 
and energy storage devices could affect the price of energy.  These emerging technologies may affect the financial viability of 
utility counterparties and could have significant impacts on wholesale market prices, which could ultimately have a material 
adverse effect on NRG's financial condition, results of operations and cash flows.

Risks that are beyond NRG's control, including but not limited to acts of terrorism or related acts of war, natural disaster, 
hostile cyber intrusions or other catastrophic events could  have a material adverse effect on NRG's financial condition, results 
of operations and cash flows. 

NRG's generation facilities and the facilities of third parties on which they rely may be targets of terrorist activities, as well 
as events occurring in response to or in connection with them, that could cause environmental repercussions and/or result in full 
or partial disruption of the facilities ability to generate, transmit, transport or distribute electricity or natural gas. Strategic targets, 
such as energy-related facilities, may be at greater risk of future terrorist activities than other domestic targets. Hostile cyber 
intrusions, including those targeting information systems as well as electronic control systems used at the generating plants and 
for  the  distribution  systems,  could  severely  disrupt  business  operations  and  result  in  loss  of  service  to  customers,  as  well  as 
significant expense to repair security breaches or system damage. Any such environmental repercussions or disruption could result 
in a significant decrease in revenues or significant reconstruction or remediation costs, beyond what could be recovered through 
insurance policies which could have a material adverse effect on the Company's financial condition, results of operations and cash 
flows. In addition, significant weather events or terrorist actions could damage or shut down the power transmission and distribution 
facilities upon which the Company's retail businesses are dependent. Power supply may be sold at a loss if these events cause a 
significant loss of retail customer load.

The operation of NRG’s businesses is subject to cyber-based security and integrity risk. 

Numerous  functions  affecting  the  efficient  operation  of  NRG’s  businesses  depend  on  the  secure  and  reliable  storage, 
processing and communication of electronic data and the use of sophisticated computer hardware and software systems. The 
operation  of  NRG’s  generation  plants,  including  STP,  and  of  NRG's  energy  and  fuel  trading  businesses  rely  on  cyber-based 
technologies and, therefore, subject to the risk that such systems could be the target of disruptive actions, particularly through 
cyber-attack  or  cyber  intrusion,  including  by  computer  hackers,  foreign  governments  and  cyber  terrorists,  or  otherwise  be 
compromised  by  unintentional  events. As  a  result,  operations  could  be  interrupted,  property  could  be  damaged  and  sensitive 
customer information could be lost or stolen, causing NRG to incur significant losses of revenues, other substantial liabilities and 
damages,  costs  to  replace  or  repair  damaged  equipment  and  damage  to  NRG's  reputation.  In  addition,  NRG  may  experience 
increased capital and operating costs to implement increased security for its cyber systems and plants. 

The Company's retail businesses are subject to the risk that sensitive customer data may be compromised, which could result 
in an adverse impact to its reputation and/or the results of operations of the Company's retail businesses.

The Company's retail businesses require access to sensitive customer data in the ordinary course of business.  Examples of 
sensitive customer data are names, addresses, account information, historical electricity usage, expected patterns of use, payment 
history, credit bureau data, credit and debit card account numbers, driver's license numbers, social security numbers and bank 
account information.  NRG's retail businesses may need to provide sensitive customer data to vendors and service providers, who 
require access to this information in order to provide services, such as call center operations, to NRG's retail businesses.  If a 
significant breach occurred, the reputation of NRG and its retail businesses may be adversely affected, customer confidence may 
be diminished, or NRG and its retail businesses may be subject to legal claims, any of which may contribute to the loss of customers 
and have a negative impact on the business and/or results of operations. 

Risks Related to Governmental Regulation and Laws

NRG's business is subject to substantial energy regulation and may be adversely affected by legislative or regulatory changes, 
as well as liability under, or any future inability to comply with, existing or future energy regulations or requirements.

NRG's business is subject to extensive U.S. federal, state and local laws and foreign laws. Compliance with the requirements 
under these legal and regulatory regimes may cause the Company to incur significant additional costs, and failure to comply with 
such requirements could result in the shutdown of a non-complying facility, the imposition of liens, fines, and/or civil or criminal 
liability.

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Public utilities under the FPA are required to obtain FERC acceptance of their rate schedules for wholesale sales of electricity. 
Except for ERCOT generating facilities and power marketers, all of NRG's non-qualifying facility generating companies and 
power marketing affiliates in the U.S. make sales of electricity in interstate commerce and are public utilities for purposes of the 
FPA. FERC has granted each of NRG's generating and power marketing companies that make sales of electricity outside of ERCOT 
the authority to sell electricity at market-based rates. FERC's orders that grant NRG's generating and power marketing companies 
market-based rate authority reserve the right to revoke or revise that authority if FERC subsequently determines that NRG can 
exercise market power in transmission or generation, create barriers to entry, or engage in abusive affiliate transactions. In addition, 
NRG's market-based sales are subject to certain market behavior rules, and if any of NRG's generating and power marketing 
companies were deemed to have violated those rules, they are subject to potential disgorgement of profits associated with the 
violation and/or suspension or revocation of their market-based rate authority. If NRG's generating and power marketing companies 
were to lose their market-based rate authority, such companies would be required to obtain FERC's acceptance of a cost-of-service 
rate schedule and could become subject to the accounting, record-keeping, and reporting requirements that are imposed on utilities 
with cost-based rate schedules. This could have a material adverse effect on the rates NRG charges for power from its facilities.

Substantially all of the Company's generation assets are also subject to the reliability standards promulgated by the designated 
Electric Reliability Organization (currently NERC) and approved by FERC.  If NRG fails to comply with the mandatory reliability 
standards, NRG could be subject to sanctions, including substantial monetary penalties and increased compliance obligations. 
NRG is also affected by legislative and regulatory changes, as well as changes to market design, market rules, tariffs, cost allocations, 
and bidding rules that occur in the existing ISOs. The ISOs that oversee most of the wholesale power markets impose, and in the 
future may continue to impose, mitigation, including price limitations, offer caps, non-performance penalties and other mechanisms 
to address some of the volatility and the potential exercise of market power in these markets. These types of price limitations and 
other regulatory mechanisms may have a material adverse effect on the profitability of NRG's generation facilities that sell energy 
and capacity into the wholesale power markets.

The regulatory environment has undergone significant changes in the last several years due to state and federal policies 
affecting wholesale and retail competition and the creation of incentives for the addition of large amounts of new renewable 
generation and, in some cases, transmission.  These changes are ongoing, and the Company cannot predict the future design of 
the wholesale power markets or the ultimate effect that the changing regulatory environment will have on NRG's business. In 
addition, in some of these markets, interested parties have proposed material market design changes, including the elimination of 
a single clearing price mechanism, as well as proposals to reinstate the vertical monopoly utility of the markets or require divestiture 
by generating companies to reduce their market share.  If competitive restructuring of the electric power markets is reversed, 
discontinued, or delayed, the Company's business prospects and financial results could be negatively impacted.  In addition, since 
2010, there have been a number of reforms to the regulation of the derivatives markets, both in the United States and internationally.  
These regulations, and any further changes thereto, or adoption of additional regulations, including any regulations relating to 
position limits on futures and other derivatives or margin for derivatives, could negatively impact NRG’s ability to hedge its 
portfolio in an efficient, cost-effective manner by, among other things, potentially decreasing liquidity in the forward commodity 
and derivatives markets or limiting NRG’s ability to utilize non-cash collateral for derivatives transactions.

NRG’s business may be affected by state interference in the competitive wholesale marketplace.  

NRG’s legacy generation and competitive retail businesses rely on a competitive wholesale marketplace.  The competitive 
wholesale marketplace may be undermined by out-of-market subsidies provided by states or state entities, including bailouts of 
uneconomic nuclear plants, imports of power from Canada, renewable mandates or subsidies, as well as out-of-market payments 
to new generators.  These out-of-market subsidies to existing or new generation undermine the competitive wholesale marketplace, 
which can lead to premature retirement of existing facilities, including those owned by the Company.  If these measures continue, 
capacity and energy prices may be suppressed, and the Company may not be successful in its efforts to insulate the competitive 
market from this interference.  

Government  regulations  providing  incentives  for  renewable  generation  could  change  at  any  time  and  such  changes  may 
adversely impact NRG's business, revenues, margins, results of operations and cash flows.

The Company's growth strategy depends in part on government policies that support renewable generation and enhance the 
economic viability of owning renewable electric generation assets.  Renewable generation assets currently benefit from various 
federal, state and local governmental incentives such as ITCs, PTCs, cash grants in lieu of ITCs, loan guarantees, RPS programs, 
modified accelerated cost-recovery system of depreciation and bonus depreciation. For example, in December 2015, the U.S. 
Congress enacted an extension of the 30% solar ITC so that projects which began construction in 2016 through 2019 will continue 
to qualify for the 30% ITC.  Projects beginning construction in 2020 and 2021 will be eligible for the ITC at the rates of 26% and 
22%, respectively.  The same legislation also extended the 10-year wind PTC for wind projects which began construction in 2016 
through 2019.  Wind projects which begin construction in the years 2017, 2018 and 2019 are eligible for PTCs at 80%, 60% and 
40% of the statutory rate per kWh, respectively. 

Many states have adopted RPS programs mandating that a specified percentage of electricity sales come from eligible sources 
of renewable energy.  However, the regulations that govern the RPS programs, including pricing incentives for renewable energy, 
or reasonableness guidelines for pricing that increase valuation compared to conventional power (such as a projected value for 
carbon reduction or consideration of avoided integration costs), may change.  If the RPS requirements are reduced or eliminated, 
it could lead to fewer future power contracts or lead to lower prices for the sale of power in future power contracts, which could 
have a material adverse effect on the Company's future growth prospects. 

Such material adverse effects may result from decreased revenues, reduced economic returns on certain project company 
investments,  increased  financing  costs,  and/or  difficulty  obtaining  financing.  Furthermore,  the ARRA  included  incentives  to 
encourage investment in the renewable energy sector, such as cash grants in lieu of ITCs, bonus depreciation and expansion of 
the U.S. DOE loan guarantee program. It is uncertain what loan guarantees may be made by the U.S. DOE loan guarantee program 
in the future. In addition, the cash grant in lieu of ITCs program only applies to facilities that commenced construction prior to 
December 31, 2011, which commencement date may be determined in accordance with the safe harbor if more than 5% of the 
total cost of the eligible property was paid or incurred by December 31, 2011.

If the Company is unable to utilize various federal, state and local government incentives to acquire additional renewable 
assets in the future, or the terms of such incentives are revised in a manner that is less favorable to the Company, it may suffer a 
material adverse effect on the business, financial condition, results of operations and cash flows. 

The integration of the Capacity Performance product into the PJM market and the Pay-for-Performance mechanism in ISO-
NE could lead to substantial changes in capacity income and non-performance penalties, which could have a material adverse 
effect on NRG’s results of operations, financial condition and cash flows.

Both ISO-NE and PJM operate a pay-for-performance model where capacity payments are modified based on real-time 
generator performance.  Capacity market prices are sensitive to design parameters, as well as additions of new capacity.  NRG 
may experience substantial changes in capacity income and non-performance penalties, which could have a material adverse effect 
on NRG’s results of operations, financial condition and cash flows.

Certain of NRG's long-term bilateral contracts result from state-mandated procurements and could be declared invalid by a 
court of competent jurisdiction.

A significant portion of NRG’s revenues are derived from long-term bilateral contracts with utilities that are regulated by 
their  respective  states,  and  have  been  entered  into  pursuant  to  certain  state  programs.    Certain  long-term  contracts  that  other 
companies have with state-regulated utilities have been challenged in federal court and have been declared unconstitutional on 
the grounds that the rate for energy and capacity established by the contracts impermissibly conflicts with the rate for energy and 
capacity established by FERC pursuant to the FPA. If certain of the Company's state-mandated agreements with utilities are ever 
held to be invalid, NRG may be unable to replace such contracts, which could have a material adverse effect on NRG's business, 
financial condition, results of operations and cash flows. 

NRG's  ownership  interest  in  a  nuclear  power  facility  subjects  the  Company  to  regulations,  costs  and  liabilities  uniquely 
associated with these types of facilities.

Under the Atomic Energy Act of 1954, as amended, or AEA, ownership and operation of STP, of which NRG indirectly owns 
a 44% interest, is subject to regulation by the NRC.  Such regulation includes licensing, inspection, enforcement, testing, evaluation 
and modification of all aspects of nuclear reactor power plant design and operation, environmental and safety performance, technical 
and financial qualifications, decommissioning funding assurance and transfer and foreign ownership restrictions.  The current 
facility operating licenses for STP expire on August 20, 2047 (Unit 1) and December 15, 2048 (Unit 2). 

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There are unique risks to owning and operating a nuclear power facility.  These include liabilities related to the handling, 
treatment, storage, disposal, transport, release and use of radioactive materials, particularly with respect to spent nuclear fuel, and 
uncertainties  regarding  the  ultimate,  and  potential  exposure  to,  technical  and  financial  risks  associated  with  modifying  or 
decommissioning a nuclear facility.  The NRC could require the shutdown of the plant for safety reasons or refuse to permit restart 
of the unit after unplanned or planned outages.  New or amended NRC safety and regulatory requirements may give rise to additional 
operation and maintenance costs and capital expenditures.  Additionally, aging equipment may require more capital expenditures 
to keep each of these nuclear power plants operating efficiently.  This equipment is also likely to require periodic upgrading and 
improvement.  Any unexpected failure, including failure associated with breakdowns, forced outages, or any unanticipated capital 
expenditures, could result in reduced profitability.  STP will be obligated to continue storing spent nuclear fuel if the U.S. DOE 
continues to fail to meet its contractual obligations to STP made pursuant to the U.S. Nuclear Waste Policy Act of 1982 to accept 
and dispose of STP's spent nuclear fuel.  See also Item 1 — Regulatory Matters — Nuclear Operations - Decommissioning Trusts 
and  Item  1  —  Environmental  Matters — Federal  Environmental  Initiatives — Nuclear  Waste  for  further  discussion.    Costs 
associated with these risks could be substantial and could have a material adverse effect on NRG's results of operations, financial 
condition or cash flow to the extent not covered by the Decommissioning Trusts or recovered from ratepayers.  In addition, to the 
extent that all or a part of STP is required by the NRC to permanently or temporarily shut down or modify its operations, or is 
otherwise subject to a forced outage, NRG may incur additional costs to the extent it is obligated to provide power from more 
expensive alternative sources — either NRG's own plants, third party generators or the ERCOT — to cover the Company's then 
existing forward sale obligations.  Such shutdown or modification could also lead to substantial costs related to the storage and 
disposal of radioactive materials and spent nuclear fuel.

While STP maintains property and liability insurance for losses related to nuclear operations, there may be limitations on 
the amounts and types of insurance commercially available.  See also Item 15 — Note 22, Commitments and Contingencies, 
Nuclear Insurance.  An accident at STP or another nuclear facility could have a material adverse effect on NRG's financial condition, 
its operational results, or liquidity as losses may exceed the insurance coverage available and/or may result in the obligation to 
pay retrospective premium obligations.  

NRG is subject to environmental laws that impose extensive and increasingly stringent requirements on the Company's ongoing 
operations,  as  well  as  potentially  substantial  liabilities  arising  out  of  environmental  contamination.  These  environmental 
requirements and liabilities could adversely impact NRG's results of operations, financial condition and cash flows. 

NRG is subject to the environmental laws of foreign and U.S., federal, state and local authorities.  The Company must comply 
with numerous environmental laws and obtain numerous governmental permits and approvals to build and operate the Company's 
plants.  Federal and state environmental laws generally have become more stringent over time, although this trend could slow or 
pause. Should NRG fail to comply with any environmental requirements that apply to its operations, the Company could be subject 
to administrative, civil and/or criminal liability and fines, and regulatory agencies could take other actions seeking to curtail the 
Company's operations.  In addition, when new requirements take effect or when existing environmental requirements are revised, 
reinterpreted or subject to changing enforcement policies, NRG's business, results of operations, financial condition and cash flows 
could be adversely affected.

NRG's businesses are subject to physical, market and economic risks relating to potential effects of climate change. 

Climate change is producing changes in weather and other environmental conditions, including temperature and precipitation 
levels, and thus may affect consumer demand for electricity. In addition, the potential physical effects of climate change, such as 
increased frequency and severity of storms, floods and other climatic events, could disrupt NRG's operations and supply chain, 
and cause them to incur significant costs in preparing for or responding to these effects. These or other meteorological changes 
could lead to increased operating costs, capital expenses or power purchase costs. NRG's commercial and residential customers 
may also experience the potential physical impacts of climate change and may incur significant costs in preparing for or responding 
to these efforts, including increasing the mix and resiliency of their energy solutions and supply. 

Climate change could also affect the availability of a secure and economical supply of water in some locations, which is 
essential for the continued operation of NRG's generation plants. Water risk is monitored by the risk owners (individual plant 
operators) and reported to Company management upon changes with a significance threshold of 20% in water consumption and 
withdrawal levels.   If it is determined that a water supply risk exists that could impact projected generation levels at any plant 
within the subsequent two year time frame, risk mitigation efforts are identified and economically evaluated for implementation. 
Water risk regarding the impact for barge delivery is evaluated on a daily basis, with contingency plans developed as needed.  

GHG regulation could increase the cost of electricity generated by fossil fuels, and such increases could reduce demand for 
the power NRG generates and markets. Also, demand for NRG's energy-related services could be similarly impacted by consumers’ 
preferences or market factors favoring energy efficiency, low-carbon power sources or reduced electricity usage. 

Policies at the national, regional and state levels to regulate GHG emissions, as well as mitigate climate change, could adversely 
impact NRG's results of operations, financial condition and cash flows.

NRG's GHG emissions for 2017 can be found in Item 1, Business — Environmental Matters.  In 2015, the EPA promulgated 
the final GHG emissions rules for new and existing fossil-fuel-fired electric generating units, which have been stayed by the U.S. 
Supreme Court and the EPA has proposed repealing. 

The Company operates generating units in Connecticut, Delaware, Maryland, and New York that are subject to RGGI, which 
is a regional cap and trade system. In 2013, each of these states finalized a rule that reduced and will continue to reduce the number 
of allowances through 2020.  The nine RGGI states re-evaluated the program and published a model rule to further reduce the 
number of allowances. The revisions being currently contemplated could adversely impact NRG's results of operations, financial 
condition and cash flows. 

California has a CO2 cap and trade program for electric generating units greater than 25 MW. The impact on the Company 

depends on the cost of the allowances and the ability to pass these costs through to customers.  

Hazards customary to the power production industry include the potential for unusual weather conditions, which could affect 
fuel pricing and availability, the Company's route to market or access to customers, i.e., transmission and distribution lines, or 
critical plant assets. The contribution of climate change to the frequency or intensity of weather-related events could affect NRG's 
operations and planning process.

NRG's retail businesses are subject to changing state rules and regulations that could have a material impact on the profitability 
of its business lines.

The competitiveness of NRG's retail businesses partially depends on state regulatory policies that establish the structure, 
rules, terms and conditions on which services are offered to retail customers.  These state policies, which can include controls on 
the retail rates NRG's retail businesses can charge, the imposition of additional costs on sales, restrictions on the Company's ability 
to obtain new customers through various marketing channels and disclosure requirements, which can affect the competitiveness 
of NRG's retail businesses.  Additionally, state or federal imposition of net metering or RPS programs can make it more or less 
expensive for retail customers to supplement or replace their reliance on grid power.  NRG's retail businesses have limited ability 
to influence development of these policies, and its business model may be more or less effective, depending on changes to the 
regulatory environment.   

The Company's international operations are exposed to political and economic risks, commercial instability and events beyond 
the Company's control in the countries in which it operates, which risks may negatively impact the Company's business.

The Company's international operations depend on products manufactured, purchased and sold in the U.S. and internationally, 
including in countries with political and economic instability.  In some cases, these countries have greater political and economic 
volatility and greater vulnerability to infrastructure and labor disruptions than in NRG's other markets.  The Company's business 
could be negatively impacted by adverse fluctuations in freight costs, limitations on shipping and receiving capacity, and other 
disruptions in the transportation and shipping infrastructure at important geographic points of exit and entry for the Company's 
products. Operating and seeking to expand business in a number of different regions and countries exposes the Company to a 
number of risks, including:

•  multiple and potentially conflicting laws, regulations and policies that are subject to change;

• 

• 

• 

• 

imposition of currency restrictions on repatriation of earnings or other restraints;

imposition of burdensome tariffs or quotas;

national and international conflict, including terrorist acts; and

political and economic instability or civil unrest that may severely disrupt economic activity in affected countries.

The occurrence of one or more of these events may negatively impact the Company's business, results of operations and 

financial condition.

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Risks Related to Economic and Financial Market Conditions

NRG's level of indebtedness could adversely affect its ability to raise additional capital to fund its operations or return capital 
to stockholders. It could also expose it to the risk of increased interest rates and limit its ability to react to changes in the 
economy or its industry.

NRG's substantial debt could have negative consequences, including:

increasing NRG's vulnerability to general economic and industry conditions;

requiring a substantial portion of NRG's cash flow from operations to be dedicated to the payment of principal and interest 
on its indebtedness, therefore reducing NRG's ability to pay dividends to holders of its preferred or common stock or to 
use its cash flow to fund its operations, capital expenditures and future business opportunities;

limiting NRG's ability to enter into long-term power sales or fuel purchases which require credit support;

exposing NRG to the risk of increased interest rates because certain of its borrowings, including borrowings under its 
senior secured credit facility are at variable rates of interest;

limiting NRG's ability to obtain additional financing for working capital including collateral postings, capital expenditures, 
debt service requirements, acquisitions and general corporate or other purposes; and

limiting NRG's ability to adjust to changing market conditions and placing it at a competitive disadvantage compared to 
its competitors who have less debt.

• 

• 

• 

• 

• 

• 

The indentures for NRG's notes and senior secured credit facility contain financial and other restrictive covenants that may 
limit the Company's ability to return capital to stockholders or otherwise engage in activities that may be in its long-term best 
interests.  Furthermore, financial and other restrictive covenants contained in any project level subsidiary debt may limit the ability 
of NRG to receive distributions from such subsidiary. NRG's failure to comply with those covenants could result in an event of 
default which, if not cured or waived, could result in the acceleration of all of the Company's indebtedness.

In addition, NRG's ability to arrange financing, either at the corporate level, a non-recourse project-level subsidiary or 

otherwise, and the costs of such capital, are dependent on numerous factors, including:

• 

• 

• 

general economic and capital market conditions;

credit availability from banks and other financial institutions;

investor confidence in NRG, its partners and the regional wholesale power markets;

•  NRG's financial performance and the financial performance of its subsidiaries;

•  NRG's level of indebtedness and compliance with covenants in debt agreements;

•  maintenance of acceptable credit ratings;

• 

• 

cash flow; and

provisions of tax and securities laws that may impact raising capital.

NRG may not be successful in obtaining additional capital for these or other reasons. The failure to obtain additional capital 

from time to time may have a material adverse effect on its business and operations.

Adverse economic conditions could adversely affect NRG’s business, financial condition, results of operations and cash flows.

Adverse economic conditions and declines in wholesale energy prices, partially resulting from adverse economic conditions, 
may impact NRG’s earnings. The breadth and depth of negative economic conditions may have a wide-ranging impact on the U.S. 
business environment, including NRG’s businesses. In addition, adverse economic conditions also reduce the demand for energy 
commodities. Reduced demand from negative economic conditions continues to impact the key domestic wholesale energy markets 
NRG serves. The combination of lower demand for power and increased supply of natural gas has put downward price pressure 
on wholesale energy markets in general, further impacting NRG’s energy marketing results. In general, economic and commodity 
market conditions will continue to impact NRG’s unhedged future energy margins, liquidity, earnings growth and overall financial 
condition. In addition, adverse economic conditions, declines in wholesale energy prices, reduced demand for power and other 
factors may negatively impact the trading price of NRG’s common stock and impact forecasted cash flows, which may require 
NRG to evaluate its goodwill and other long-lived assets for impairment. Any such impairment could have a material impact on 
NRG’s financial statements. 

Goodwill and/or other intangible assets not subject to amortization that NRG has recorded in connection with its acquisitions 
are subject to mandatory annual impairment evaluations and as a result, the Company could be required to write off some or 
all of this goodwill and other intangible assets, which may adversely affect the Company's financial condition and results of 
operations.

In accordance with ASC 350, Intangibles — Goodwill and Other, or ASC 350, goodwill is not amortized but is reviewed 
annually or more frequently for impairment and other intangibles are also reviewed at least annually or more frequently, if certain 
conditions exist, and may be amortized. Any reduction in or impairment of the value of goodwill or other intangible assets will 
result in a charge against earnings which could materially adversely affect NRG's reported results of operations and financial 
position in future periods.

A valuation allowance may be required for NRG's deferred tax assets.

A  valuation  allowance  may  need  to  be  recorded  against  the  Company's  remaining  net  deferred  tax  assets,  which  are 
predominantly related to NRG Yield, Inc., that the Company estimates as more likely than not to be unrealizable, based on available 
evidence including cumulative and forecasted pretax book earnings at the time the estimate is made.  Currently, the Company has 
recorded a valuation allowance of approximately $1.8 billion against NRG's net deferred tax assets that are not related to NRG 
Yield, Inc.  A valuation allowance related to deferred tax assets can be affected by changes to tax laws, statutory tax rates and 
future taxable income levels. In the event that the Company determines that it would not be able to realize all or a portion of its 
net deferred tax assets in the future, the Company would reduce such amounts accordingly through a charge to income tax expense 
in the period in which that determination was made, which could have a material adverse impact on the Company's financial 
condition and results of operations.

The Company has made investments, and may continue to make investments, in new business initiatives predominantly focused 
on consumer products and in markets that may not be successful, may not achieve the intended financial results or may result 
in product liability and reputational risk that could adversely affect the Company.

NRG continues to pursue growth in its existing businesses and markets and further diversification across the competitive 
energy value chain. NRG is continuing to pursue investment opportunities in renewables, consumer products and distributed 
generation.  Such initiatives may involve significant risks and uncertainties, including distraction of management from current 
operations, inadequate return on capital, and unidentified issues not discovered in the diligence performed prior to launching an 
initiative or entering a market.  

As part of these initiatives, the Company may be liable to customers for any damage caused to customers’ homes, facilities, 
belongings or property during the installation of Company products and systems, such as residential solar systems and mass market 
back-up generators. In addition, shortages of skilled labor for Company projects could significantly delay a project or otherwise 
increase its costs.  The products that the Company sells or manufactures may expose the Company to product liability claims 
relating to personal injury, death, or environmental or property damage, and may require product recalls or other actions. Although 
the Company maintains liability insurance, the Company cannot be certain that its coverage will be adequate for liabilities actually 
incurred or that insurance will continue to be available to the Company on economically reasonable terms, or at all.  Further, any 
product liability claim or damage caused by the Company could significantly impair the Company’s brand and reputation, which 
may result in a failure to maintain customers and achieve the Company’s desired growth initiatives in these new businesses.

50

51

 
 
 
 
 
 
CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

•  NRG's ability to achieve its strategy of regularly returning capital to stockholders;

•  NRG's ability to obtain and maintain retail market share;

•  NRG's ability to successfully evaluate investments and achieve intended financial results in new business and growth 

initiatives;

•  NRG's ability to successfully integrate, realize cost savings and manage any acquired businesses; and

•  NRG's ability to develop and maintain successful partnering relationships.

Forward-looking statements speak only as of the date they were made, and NRG Energy, Inc. undertakes no obligation to 
publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.  The 
foregoing review of factors that could cause NRG's actual results to differ materially from those contemplated in any forward-
looking statements included in this Annual Report on Form 10-K should not be construed as exhaustive.

Item 1B — Unresolved Staff Comments

None.

This Annual Report on Form 10-K of NRG Energy, Inc., or NRG or the Company, includes forward-looking statements 
within the meaning of Section 27A of the Securities Act of 1933, as amended, or Securities Act, and Section 21E of the Securities 
Exchange Act of 1934, as amended, or Exchange Act.  The words "believes," "projects," "anticipates," "plans," "expects," "intends," 
"estimates" and similar expressions are intended to identify forward-looking statements.  These forward-looking statements involve 
known and unknown risks, uncertainties and other factors that may cause NRG's actual results, performance and achievements, 
or industry results, to be materially different from any future results, performance or achievements expressed or implied by such 
forward-looking statements.  These factors, risks and uncertainties include the factors described under Item 1A — Risk Factors 
Related to NRG Energy, Inc. and the following:

•  NRG's ability to achieve the expected benefits of its Transformation Plan;
•  NRG's ability to engage in successful sales and divestitures as well as mergers and acquisitions activity;

•  The potential adverse effects of the GenOn Entities' filings under Chapter 11 of the Bankruptcy Code and restructuring 
transactions on NRG's operations, management and employees and the risks associated with operating NRG's business 
during the restructuring process;

•  Risks and uncertainties associated with the GenOn Entities' Chapter 11 Cases including the ability to achieve 

anticipated benefits therefrom;

•  General economic conditions, changes in the wholesale power markets and fluctuations in the cost of fuel;

•  Volatile power supply costs and demand for power;

•  Changes in law, including judicial decisions;

•  Hazards customary to the power production industry and power generation operations such as fuel and electricity price 
volatility, unusual weather conditions (including wind and solar conditions), catastrophic weather-related or other damage 
to  facilities,  unscheduled  generation  outages,  maintenance  or  repairs,  unanticipated  changes  to  fuel  supply  costs  or 
availability due to higher demand, shortages, transportation problems or other developments, environmental incidents, 
or electric transmission or gas pipeline system constraints and the possibility that NRG may not have adequate insurance 
to cover losses as a result of such hazards;

•  The effectiveness of NRG's risk management policies and procedures, and the ability of NRG's counterparties to satisfy 

their financial commitments;

•  Counterparties' collateral demands and other factors affecting NRG's liquidity position and financial condition;

•  NRG's ability to operate its businesses efficiently and generate earnings and cash flows from its asset-based businesses 

in relation to its debt and other obligations;

•  NRG's ability to enter into contracts to sell power and procure fuel on acceptable terms and prices;

•  The liquidity and competitiveness of wholesale markets for energy commodities;

•  Government regulation, including changes in market rules, rates, tariffs and environmental laws;

• 

Price mitigation strategies and other market structures employed by ISOs or RTOs that result in a failure to adequately 
and fairly compensate NRG's generation units;

•  NRG's ability to mitigate forced outage risk for units subject to capacity performance requirements in PJM, performance 

incentives in ISO-NE, and scarcity pricing in ERCOT;

•  NRG's ability to borrow funds and access capital markets, as well as NRG's substantial indebtedness and the possibility 

that NRG may incur additional indebtedness going forward;

•  Operating and financial restrictions placed on NRG and its subsidiaries that are contained in the indentures governing 
NRG's outstanding notes, in NRG's Senior Credit Facility, and in debt and other agreements of certain of NRG subsidiaries 
and project affiliates generally;

•  Cyber terrorism and inadequate cybersecurity, or the occurrence of a catastrophic loss and the possibility that NRG 

may not have adequate insurance to cover losses resulting from such hazards or the inability of NRG's insurers to 
provide coverage;

•  NRG's ability to develop and build new power generation facilities;

•  NRG's ability to develop and innovate new products as retail and wholesale markets continue to change and evolve;

•  NRG's ability to implement its strategy of finding ways to meet the challenges of climate change, clean air and protecting 

natural resources while taking advantage of business opportunities;

•  NRG's ability to increase cash from operations through operational and commercial initiatives, corporate efficiencies, 

asset strategy, and a range of other programs throughout NRG to reduce costs or generate revenues;

•  NRG's ability to sell assets to NRG Yield, Inc. and to close drop-down transactions;

52

53

 
 
 
 
 
 
Item 2 — Properties 

Listed below are descriptions of NRG's interests in facilities, operations and/or projects owned or leased as of December 31, 
2017.  The MW figures provided represent nominal summer net MW capacity of power generated as adjusted for the Company's 
owned  or  leased  interest  excluding  capacity  from  inactive/mothballed  units  as  of  December 31,  2017.  The  following  table 
summarizes NRG's power production and cogeneration facilities by region:

Power Market

Plant Type

Primary Fuel

Location

Rated MW
Capacity

Net MW 
Capacity(a)

%
Owned

Name of Facility

      Gulf Coast
Bayou Cove(i)
Big Cajun I(i)
Big Cajun II(i)
Big Cajun II(i)
Big Cajun II(i)
Cedar Bayou

Cedar Bayou 4
Cottonwood(i)
Greens Bayou

Gregory

Limestone

Petra Nova Cogen

San Jacinto
South Texas Project(b)
Sterlington(i)
T.H. Wharton

W.A. Parish

W.A. Parish

     East/West

Arthur Kill

Astoria Turbines

Conemaugh & Keystone

Conemaugh & Keystone

Connecticut Jet Power

Devon

Doga
Encina(f)
Fisk

Gladstone

Indian River

Indian River
Joliet(c)
Long Beach

Middletown

Midway-Sunset

Montville

Oswego
Powerton(c)
Saguaro

MISO

MISO

MISO

MISO

MISO

ERCOT

ERCOT

MISO

ERCOT

ERCOT

ERCOT

ERCOT

ERCOT

ERCOT

MISO

ERCOT

ERCOT

ERCOT

NYISO

NYISO

PJM

PJM

ISO-NE

ISO-NE

CAISO

PJM

PJM

PJM

PJM

CAISO

ISO-NE

CAISO

ISO-NE

NYISO

PJM

WECC

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Natural Gas

Natural Gas

Coal

Natural Gas

Coal

Natural Gas

Natural Gas

Natural Gas

Natural Gas

Natural Gas

Coal

Natural Gas

Natural Gas

Nuclear

Uranium

Natural Gas

Natural Gas

Coal

Natural Gas

LA

LA

LA

LA

LA

TX

TX

TX

TX

TX

TX

TX

TX

TX

LA

TX

TX

TX

225

430

580

540

588

1,495

498

1,263

344

388

1,689

44

162

2,582

176

1,025

2,504

1,145

225

430

580

540

341

1,495

249

1,263

344

388

1,689

22

162

1,136

176

1,025

2,504

1,145

Total Gulf Coast

15,678

13,714

NY

NY

PA

PA

CT

CT

Turkey

CA

IL

AUS

DE

DE

IL

CA

CT

CA

CT

NY

IL

NV

Natural Gas

Natural Gas

Coal

Oil

Oil

Oil

Natural Gas

Natural Gas

Oil

Coal

Coal

Oil

Natural Gas

Natural Gas

Oil

Natural Gas

Oil

Oil

Coal

Natural Gas

54

858

404

3,343

20

142

133

180

859

172

1,613

410

16

1,326

260

770

226

494

1,639

1,538

92

858

404

125

1

142

133

144

859

172

605

410

16

1,326

260

770

113

494

1,639

1,538

46

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

100.0

100.0

100.0

100.0

58.0

100.0

50.0

100.0

100.0

100.0

100.0

50.0

100.0

44.0

100.0

100.0

100.0

100.0

100.0

100.0

3.7

3.7

100.0

100.0

80.0

100.0

100.0

37.5

100.0

100.0

100.0

100.0

100.0

50.0

100.0

100.0

100.0

50.0

Name of Facility

Power Market

Plant Type

Primary Fuel

Location

Rated MW
Capacity

Net MW 
Capacity(a)

%
Owned

     East/West (continued)
San Diego Turbines(d)
SMECO

Sunrise

Vienna

Watson

Waukegan

Waukegan

Will County

CAISO

PJM

CAISO

PJM

CAISO

PJM

PJM

PJM

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Fossil

Natural Gas

Natural Gas

Natural Gas

Oil

Natural Gas

Coal

Oil

Coal

CA

MD

CA

MD

CA

IL

IL

IL

61

78

586

167

416

682

108

510

61

78

586

167

204

682

108

510

Total East/West

17,103

12,451

     Renewables
Agua Caliente(g)(j)
Blythe II
Broken Bow(g)
Cedro Hill(g)
Crofton Bluffs(g)
Distributed Solar
Eastridge(h)
Guam(j)
Ivanpah(g)(j)
Langford Wind Farm
Mountain Wind I(g)
Mountain Wind II(g)
Sherbino Wind Farm(j)
Spanish Town(j)
Stadiums(j)

     NRG Yield
Agua Caliente(g)
Alpine

Alta Wind

Avenal

Avra Valley

Blythe

Borrego

Buffalo Bear

CAISO/WECC

Renewable

Solar

CAISO

MISO

ERCOT

MISO

Renewable

Solar

Renewable Wind

Renewable Wind

Renewable Wind

AZNMSNV/WECC Renewable

Solar

MISO

CAISO

ERCOT

WECC

WECC

ERCOT

Renewable Wind

Renewable

Solar

Renewable

Solar

Renewable Wind

Renewable Wind

Renewable Wind

Renewable Wind

Renewable

Solar

Renewable

Solar

CAISO/WECC

Renewable

Solar

CAISO

CAISO

CAISO

CAISO

CAISO

CAISO

SPP

Renewable

Solar

Renewable Wind

Renewable

Solar

Renewable

Solar

Renewable

Solar

Renewable

Solar

Renewable Wind

California Valley Solar Ranch CAISO/WECC

Renewable

Solar

Crosswinds

Desert Sunlight

Distributed Solar

Dover Cogeneration

El Segundo

Elbow Creek

Elkhorn Ridge

Forward

Four Brothers Solar

MISO

CAISO

Various

PJM

CAISO

ERCOT

MISO

PJM

WECC

Renewable Wind

Renewable

Solar

Renewable

Solar

Fossil

Fossil

Natural Gas

Natural Gas

Renewable Wind

Renewable Wind

Renewable Wind

Renewable

Solar

55

AZ

CA

NE

TX

NE

various

MN

Guam

CA

TX

WY

WY

TX

USVI

various

290

20

80

150

42

179

10

26

392

150

61

80

150

4

6

102

20

13

47

8

179

10

26

196

150

19

25

75

4

6

Total Renewables

1,640

880

AZ

CA

CA

CA

AZ

CA

CA

OK

OK

CA

IA

various

DE

CA

TX

NE

PA

UT

290

66

947

45

26

21

26

19

250

21

550

27

103

550

122

81

29

320

46

66

947

23

26

21

26

19

250

21

138

27

103

550

122

54

29

160

100.0

100.0

100.0

100.0

49.0

100.0

100.0

100.0

35.0

100.0

16.0

31.0

20.0

100.0

99.0

100.0

50.1

100.0

31.0

31.0

50.0

100.0

100.0

16.0

100.0

100.0

50.0

100.0

100.0

100.0

100.0

100.0

99.0

25.0

100.0

100.0

100.0

100.0

66.7

100.0

50.0

 
 
 
 
 
 
Name of Facility

Power Market

Plant Type

Primary Fuel

Location

Rated MW
Capacity

Net MW 
Capacity(a)

%
Owned

Thermal Facilities

ISO-NE

ISO-NE

ERCOT

WECC

MISO

WECC

WECC

WECC

MISO

PJM

CAISO

MISO

PJM

PJM

PJM

WECC

MISO

SPP

Various

ERCOT

WECC

WECC

SPP

WECC

ISO-NE

ERCOT

CAISO

     NRG Yield (continued)

GenConn Devon

GenConn Middletown

Goat Mountain Wind

Granite Mountain

Hardin

High Desert

Iron Springs

Kansas South

Laredo Ridge

Lookout

Marsh Landing

Odin

Paxton Creek Cogeneration

Pinnacle
Princeton Hospital(e)
Roadrunner

San Juan Mesa

Sleeping Bear

SPP projects

South Trent Wind Farm

Spanish Fork, UT

Spring Canyon II and III

Taloga

Tucson Convention Center

University of Bridgeport

Wildorado

Walnut Creek

Other

Residential solar

Fossil

Fossil

Dual-fuel

Dual-fuel

Renewable Wind

Renewable

Solar

Renewable Wind

Renewable

Solar

Renewable

Solar

Renewable

Solar

Renewable Wind

Renewable Wind

Fossil

Natural Gas

Renewable Wind

Fossil

Natural Gas

Renewable Wind

Fossil

Natural Gas

Renewable

Solar

Renewable Wind

Renewable Wind

Renewable

Solar

Renewable Wind

Renewable Wind

Renewable Wind

Renewable Wind

Fossil

Fossil

Natural Gas

Natural Gas

Renewable Wind

Fossil

Natural Gas

CT

CT

TX

UT

IA

CA

UT

CA

NE

PA

CA

MN

PA

WV

NJ

NM

NM

OK

various

TX

UT

CO

OK

AZ

CT

TX

CA

Total NRG Yield

NRG's Noncontrolling Interest

Net NRG Yield

50.0

50.0

100.0

50.0

99.0

100.0

50.0

100.0

100.0

100.0

100.0

99.9

100.0

100.0

100.0

100.0

75.0

100.0

100.0

100.0

100.0

90.1

100.0

100.0

100.0

100.0

100.0

190

190

150

130

15

20

80

20

80

38

95

95

150

65

15

20

40

20

80

38

720

720

20

12

55

5

20

120

95

25

101

19

60

130

2

1

161

485

6,437

20

12

55

5

20

90

95

25

101

19

54

130

2

1

161

485

5,241

(2,353)

2,888

Renewable

Solar

various

Total Other

114

114

114

114

100.0

Total

40,972

30,047

(a)  Actual capacity can vary depending on factors including weather conditions, operational conditions, and other factors. Additionally, ERCOT requires periodic 

demonstration of capability, and the capacity may vary individually and in the aggregate from time to time.

(b)  Generation capacity figure consists of the Company's 44% interest in the two units at STP.
(c)  NRG leases 100% interests in the Powerton facility and Units 7 and 8 of the Joliet facility through facility lease agreements expiring in 2034 and 2030, 

respectively.  NRG owns 100% interest in Joliet Unit 6.  NRG operates the Powerton and Joliet facilities.

(d)  These units are located on property owned by SDG&E under an annual license agreement. The Miramar and El Cajon sites (51 MW) retired on January, 1, 

2017.

(e)  The output of Princeton Hospital is primarily dedicated to serving the hospital.  Excess power is sold to the local utility under its state-jurisdictional tariff.
(f)  Encina Unit 1 was deactivated on March 31, 2017.
(g)  Capacity attributable to noncontrolling interest for these Renewables facilities was 685 MWs as of December 31, 2017. 
(h) 
(i)  Assets that are part of NRG's South Central business.
(j)  Assets that are not included in the announced sale of NRG's ownership in NRG Yield, Inc.  Agua Caliente remains as a ROFO asset under the ROFO 

In January 2018, NRG sold the Eastridge assets to a third party.

Agreement between NRG and NRG Yield, Inc.

The Company's thermal businesses in Pittsburgh, Harrisburg and San Francisco are regulated by their respective state's Public 
Utility Commission. The other thermal businesses are subject to contract terms with their customers.  The Company's thermal 
businesses are owned by NRG Yield LLC.  The following table summarizes NRG's thermal steam and chilled water facilities as 
of December 31, 2017:

Name and Location of
Facility
NRG Energy Center Minneapolis,
MN

NRG Energy Center San
Francisco, CA

NRG Energy Center Omaha, NE

NRG Energy Center Harrisburg,
PA

NRG Energy Center Phoenix, AZ

Thermal Energy
Purchaser
Approx 100 steam and
55 chilled water
customers
Approx 180 steam
customers

Approx 60 steam and
65 chilled water
customers

Approx 125 steam and
5 chilled water
customers

Approx 35 chilled
water customers

NRG Energy Center Pittsburgh, PA Approx 25 steam and

NRG Energy Center San Diego,
CA

NRG Energy Center Dover, DE

NRG Energy Center Princeton, NJ

25 chilled water
customers
Approx 20 chilled
water customers

Kraft Foods Inc. and
Procter & Gamble
Company

Princeton HealthCare
System

Total Generating
Capacity (MWt)

%
Owned
100

100

Rated Megawatt
Thermal
Equivalent
Capacity (MWt)

Net Megawatt
Thermal
Equivalent
Capacity (MWt)

Generating
Capacity

322
136

133

322
136

133

Steam: 1,100 MMBtu/hr.
Chilled water: 38,700 tons

Steam: 454 MMBtu/hr.

100
12(a)                                                                                                                                      
100
0(a)
100

Steam: 485 MMBtu/hr
Steam: 250 MMBtu/hr
Chilled water: 22,000 tons
Chilled water:  7,250 tons

142
9
77
0

142
73
77
26

108
13

108
13

Steam: 370 MMBtu/hr.
Chilled water: 3,600 tons

24(a)
100
12(a)
0(a)

100

100

100

100

5
104
14
28

88
49

31

66

21
17

1
104
2
0

88
49

Steam: 17 MMBtu/hr
Chilled water: 29,600 tons
Chilled water:  3,920 tons
Chilled water: 8,000 tons

Steam: 302 MMBtu/hr.
Chilled water: 13,874 tons

31 Chilled water: 8,825 tons

66

Steam: 225 MMBtu/hr.

21
17

Steam: 72 MMBtu/hr.
Chilled water: 4,700 tons

1,453

1,319

(a)  Net MWt capacity excludes 134 MWt available under the right-to-use provisions contained in agreements between two of NRG Yield Inc.'s thermal facilities 

and certain of its customers.

Other Properties

NRG owns several real properties and facilities related to its generation assets, other vacant real property unrelated to the 
Company's generation assets, interests in construction projects, and properties not used for operational purposes. NRG believes 
it has satisfactory title to its plants and facilities in accordance with standards generally accepted in the electric power industry, 
subject to exceptions that, in the Company's opinion, would not have a material adverse effect on the use or value of its portfolio.

NRG leases its financial and commercial corporate headquarters at 804 Carnegie Center, Princeton, New Jersey, its operational 

headquarters in Houston, Texas, its retail business offices and call centers, and various other office space.

56

57

 
 
 
 
 
 
Item 3 — Legal Proceedings

PART II

See Item 15 — Note 22, Commitments and Contingencies, to the Consolidated Financial Statements for discussion of the 

Item 5 — Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

material legal proceedings to which NRG is a party.

Item 4 — Mine Safety Disclosures

Not applicable.

Market Information and Holders and Dividends

NRG's authorized capital stock consists of 500,000,000 shares of NRG common stock and 10,000,000 shares of preferred 
stock.  A total of 25,000,000 shares of the Company's common stock are authorized for issuance under the NRG LTIP.  No shares 
of NRG common stock were available for future issuance under the NRG GenOn LTIP.  For more information about the NRG 
LTIP and the NRG GenOn LTIP, refer to Item 12 — Security Ownership of Certain Beneficial Owners and Management and 
Related Stockholder Matters and Item 15 — Note 20, Stock-Based Compensation, to the Consolidated Financial Statements. 

NRG's common stock is listed on the New York Stock Exchange and has been assigned the symbol: NRG.  The high and 
low sales prices, as well as the closing price for the Company's common stock on a per share basis for 2017 and 2016 are set forth 
below:

Common Stock Price
High
Low
Closing
Dividends Per
Common Share

Fourth
Quarter
2017

Third
Quarter
2017

Second
Quarter
2017

First
Quarter
2017

Fourth
Quarter
2016

Third
Quarter
2016

Second
Quarter
2016

First
Quarter
2016

$

$

29.78
24.55
28.48

$

26.25
15.95
25.59

$

19.07
14.52
17.22

$

18.95
12.19
18.70

$

13.06
9.84
12.26

$

16.02
10.70
11.21

$

18.32
11.69
14.99

14.47
8.92
13.01

$

0.030

$

0.030

$

0.030

$

0.030

$

0.030

$

0.030

$

0.030

$

0.145

NRG had 316,743,089 shares outstanding as of December 31, 2017.  As of January 31, 2018, there were 317,637,917 shares 

outstanding, and there were 21,150 common stockholders of record.

On January 19, 2018, NRG declared a quarterly dividend on the Company's common stock of $0.030 per share, or $0.12

per share on an annualized basis, payable on February 15, 2018, to stockholders of record as of February 1, 2018.    

The Company's common stock dividends are subject to available capital, market conditions, and compliance with associated 

laws and regulations. 

58

59

 
 
 
 
 
 
Stock Performance Graph 

The performance graph below compares NRG's cumulative total stockholder return on the Company's common stock for 
the period December 31, 2012 through December 31, 2017 with the cumulative total return of the Standard & Poor's 500 Composite 
Stock Price Index, or S&P 500, and the Philadelphia Utility Sector Index, or UTY.  NRG's common stock trades on the New York 
Stock Exchange under the symbol "NRG."

The performance graph shown below is being furnished and compares each period assuming that $100 was invested on 
December 31, 2012, in each of the common stock of NRG, the stocks included in the S&P 500 and the stocks included in the UTY, 
and that all dividends were reinvested. 

Comparison of Cumulative Total Return

NRG Energy, Inc. 
S&P 500
UTY

Dec-2012

Dec-2013

Dec-2014

Dec-2015

Dec-2016

Dec-2017

$

$

100.00
100.00
100.00

$

127.02
132.39
110.98

$

121.33
150.51
143.09

54.56
152.59
134.14

$

58.06
170.84
157.47

$

135.68
208.14
177.66

Item 6 — Selected Financial Data 

The following table presents NRG's historical selected financial data.  This historical data should be read in conjunction with 
the Consolidated Financial Statements and the related notes thereto in Item 15 and Item 7, Management's Discussion and Analysis 
of Financial Condition and Results of Operations.  The Company has completed several acquisitions and dispositions, as described 
in Item 15 — Note 3, Discontinued Operations, Acquisitions and Dispositions.

Year Ended December 31,

2017

2016

2015

2014

2013

(In millions except ratios and per share data)

$ 8,820

(8,944)

$ 12,810
(13,033)
(15)
895

(459)

198

(99)

(308)

(43)
(386)

323

323

324

$

—
(72)
204
134

334

339

337

0.23

0.54

$ (1.22)

0.45

34.68

$ 32.33

1,559

2,757

0.98

0.89

$ 1,149

2,767

0.36

0.36

$

$

$

$

Statement of income data:
Total operating revenues
Total operating costs and other expenses (a)
Impairment losses (b)
Operating (loss)/income

Impairment losses on investments

Loss from continuing operations, net

(Loss)/income from discontinued operations, net
Net (loss)/income attributable to NRG Energy, Inc. 
Common share data:
Basic shares outstanding — average

Diluted shares outstanding — average

Shares outstanding — end of year
Per share data:

$ 10,629

$ 10,512

$ 12,328

(10,484)

(10,633)

(12,612)

(1,709)

(587)

(79)

(1,548)

(789)
$ (2,153)

317

317

317

(702)

266

(268)

(983)

92
(774)

316

316

315

(4,860)

(4,051)

(56)

(6,331)

(105)
$ (6,382)

329

329

314

$

Net (loss)/income attributable to NRG — basic and diluted

$ (6.79)

$ (2.22)

$ (19.46)

Dividends declared per common share

Book value
Business metrics:

Cash flow from operations
Liquidity position (c)
Ratio of earnings to fixed charges

Ratio of earnings to fixed charges and preferred dividends

Return on equity

Ratio of debt to total capitalization
Balance sheet data:

Current assets

Current liabilities

Property, plant and equipment, net
Total assets
Long-term debt, including current maturities, and capital

leases

Total stockholders' equity

(a)  Excludes impairment losses and impairment losses on investments.

0.12

6.20

$

0.24

0.58

$ 14.09

$ 17.29

$ 1,387

$ 2,088

$ 1,349

3,210

(0.52)

(0.52)

2,373

0.29

0.29

2,418

(4.01)

(3.88)

(109.40)% (17.41)% (117.45)%

1.15%

(3.69)%

88.70 %

77.75 %

72.58 %

56.98%

52.81 %

$ 4,415

$ 6,714

$ 7,619

$

8,784

$ 7,776

3,317

13,908
23,318

4,702

15,369
30,682

4,602

15,901
33,125

5,236

19,321
40,856

4,381

16,676
34,081

16,404

16,473

16,698

17,047

13,485

$ 1,968

$ 4,446

$ 5,434

$ 11,676

$ 10,467

(b) 

Includes goodwill impairment as described in Item 15 - Note 11, Goodwill and Other Intangibles, to the Consolidated Financial Statements.

(c)  Liquidity position is determined as disclosed in Item 7, Management's Discussion and Analysis of Financial Condition and Results of Operations, Liquidity 
and  Capital  Resources,  Liquidity  Position.  It  excludes  collateral  funds  deposited  by  counterparties  of  $37  million,  $2  million,  and  $91  million  as  of 
December 31, 2017, 2016 and 2015, respectively, which represents cash held as collateral from hedge counterparties in support of energy risk management 
activities. It is the Company's intention to limit the use of these funds for repayment of the related current liability for collateral received in support of energy 
risk management activities.

60

61

 
 
 
 
 
 
The following table provides the details of NRG's operating revenues:

Item 7 — Management's Discussion and Analysis of Financial Condition and Results of Operations

Energy revenue 
Capacity revenue 
Retail revenue 
Mark-to-market for economic hedging activities
Contract amortization
Other revenues
Corporate/Eliminations
Total operating revenues(a)

2017

3,549
1,197
6,385
21
(56)
490
(957)
10,629

$

$

$

$

(a) Inter-segment sales and net derivative gains and losses included in operating revenues.

2014

2016

$

Year Ended December 31,
2015
(In millions)
4,923
$
1,368
6,910
(143)
(40)
425
(1,115)
12,328

4,122
1,236
6,336
(572)
(56)
543
(1,097)
10,512

$

$

4,960
1,201
7,372
690
(12)
536
(1,937)
12,810

$

$

2013

3,638
936
6,315
(185)
(32)
287
(2,139)
8,820

Energy revenue consists of revenues received from third parties as well as from the Company's retail businesses, for sales 
of electricity in the day-ahead and real-time markets, as well as bilateral sales.  It also includes energy sold through long-term 
PPAs for renewable facilities.  In addition, energy revenue includes revenues from the settlement of financial instruments and net 
realized trading revenues.

Capacity revenue consists of revenues received from a third party at either the market or negotiated contract rates for making 
installed generation capacity available in order to satisfy system integrity and reliability requirements.  Capacity revenue also 
includes revenues from the settlement of financial instruments.  In addition, capacity revenue includes revenues received under 
tolling arrangements, which entitle third parties to dispatch NRG's facilities and assume title to the electrical generation produced 
from that facility.

Retail  revenue,  representing  operating  revenues  of  NRG's  retail  businesses,  consists  of  revenues  from  retail  sales  to 
residential, small business, commercial, industrial and governmental/institutional customers, revenues from the sale of excess 
supply into various markets, primarily in Texas, as well as product sales.

Mark-to-market for economic hedging activities includes asset-backed hedges that have not been designated as cash flow 

hedges and ineffectiveness on cash flow hedges.

Contract amortization revenue consists of the amortization of the intangible assets for net in-market C&I contracts established 
in  connection  with  the  acquisitions  of  Reliant  Energy  and  Green  Mountain  Energy,  as  well  as  acquired  power  contracts,  gas 
derivative instruments, and certain power sales agreements assumed at Fresh Start and Texas Genco purchase accounting dates 
related to the sale of electric capacity and energy in future periods.  These amounts are amortized into revenue over the term of 
the underlying contracts based on actual generation or contracted volumes. 

Other revenues include revenues generated by the Thermal Business consisting of revenues received from the sale of steam, 
hot and chilled water generally produced at a central district energy plant and sold to commercial, governmental and residential 
buildings for space heating, domestic hot water heating and air conditioning.  It also includes the sale of high-pressure steam 
produced  and  delivered  to  industrial  customers  that  is  used  as  part  of  an  industrial  process.    Other  revenues  also  consists  of 
operations and maintenance fees, or O&M fees, construction management services, or CMA fees, sale of natural gas and emission 
allowances, and revenues from ancillary services. O&M fees consist of revenues received from providing certain unconsolidated 
affiliates with services under long-term operating agreements.  CMA fees are earned where NRG provides certain management 
and oversight of construction projects pursuant to negotiated agreements such as for the GenConn, Cedar Bayou 4 and certain 
solar construction projects.  Ancillary services are comprised of the sale of energy-related products associated with the generation 
of electrical energy such as spinning reserves, reactive power and other similar products.  Other revenues also include unrealized 
trading activities. 

The discussion and analysis below has been organized as follows:

•  Executive Summary, including the business environment in which NRG operates, a discussion of regulation, weather, 
competition and other factors that affect the business, and significant events that are important to understanding the results 
of operations and financial condition;

•  Results of operations, including an explanation of significant differences between the periods in the specific line items 

of NRG's Consolidated Statements of Operations;

• 

Financial  condition  addressing  credit  ratings,  liquidity  position,  sources  and  uses  of  cash,  capital  resources  and 
requirements, commitments, and off-balance sheet arrangements; and

•  Critical accounting policies which are most important to both the portrayal of the Company's financial condition and 

results of operations, and which require management's most difficult, subjective or complex judgment.

As you read this discussion and analysis, refer to NRG's Consolidated Statements of Operations to this Form 10-K, which 
presents the results of the Company's operations for the years ended December 31, 2017, 2016, and 2015, and also refer to Item 1 
to this Form 10-K for more detailed discussion about the Company's business.

Executive Summary

NRG  Energy,  Inc.,  or  NRG  or  the  Company,  is  a  leading  integrated  power  company  built  on  the  strength  of  a  diverse 
competitive electric generation portfolio and leading retail electricity platform.  NRG aims to create a sustainable energy future 
by producing, selling and delivering electricity and related products and services in major competitive power markets in the U.S. 
in a manner that delivers value to all of NRG's stakeholders. The Company owns and operates approximately 30,000 MW of 
generation; trades wholesale energy, capacity and related products; transacts in and trades fuel and transportation services; and 
directly sells energy, services, and innovative, sustainable products and services to retail customers under the names “NRG”, 
"Reliant" and other retail brand names owned by NRG.

Business Environment

The industry dynamics and external influences affecting the Company and its businesses, and the power generation and 

retail energy industry in general in 2017 and for the future medium term include:

Capacity Markets — Capacity markets are a major source of revenue for the Company.  Centralized capacity markets exist 
in ISO-NE, MISO, NYISO and PJM. Bilateral markets exist in CAISO and MISO.  These auctions are either an annual market 
held three years ahead of the delivery period as in the case of PJM and ISO-NE, or six months to one month ahead as in the case 
of NYISO.  Many variables affect the prices derived in these auctions.  These variables include the load forecast, the target reserve 
margin, rules surrounding demand response, capacity performance penalties, capacity imports and exports from the region, new 
generation  entrants,  slope  of  the  demand  curve,  generation  retirements,  the  cost  of  retrofitting  old  generation  to  meet  new 
environmental rules, expected profitability of the units themselves in the energy market and various other auction rules.  In theory, 
a high capacity price indicates that the ISO doesn't have sufficient generation capacity against its needed reserve margin and new 
construction should enter the market.  Similarly, a low capacity price suggests the market is over-built and units should retire.  The 
Company has seen many swings in the pricing for capacity markets and the rules in many of the markets are undergoing significant 
changes, as discussed in this Management's Discussion and Analysis of Financial Condition and Results of Operations.  

Commodities Markets — The price of natural gas plays an important role in setting the price of electricity in many of the 
regions where NRG operates power plants.  Natural gas prices are driven by variables including demand from the industrial, 
residential, and electric sectors, productivity across natural gas supply basins, costs of natural gas production, changes in pipeline 
infrastructure, and the financial and hedging profile of natural gas consumers and producers.  In 2017, average natural gas prices 
at Henry Hub were 26.3% higher than in 2016.

If long-term gas prices decrease, the Company is likely to encounter lower realized energy prices, leading to lower energy 
revenues as higher priced hedge contracts mature and are replaced by contracts with lower gas and power prices.  NRG's retail 
gross margins have historically improved as natural gas prices decline and are likely to partially offset the impact of declining gas 
prices on conventional wholesale power generation.  To further mitigate this impact, NRG may increase its percentage of coal and 
nuclear  capacity  sold  forward  using  a  variety  of  hedging  instruments,  as  described  under  the  heading  "Energy-Related 
Commodities" in Item 15 — Note 5, Accounting for Derivative Instruments and Hedging Activities, to the Consolidated Financial 
Statements.

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63

 
 
 
 
 
 
 
Natural gas prices are a primary driver of coal demand.  The low priced commodity environment has stressed coal equities, 
leading coal suppliers to file for bankruptcy protection, launch debt exchanges, rationalize assets, and cut production.  If multiple 
parties withdraw from the market, liquidity could be challenged in the short term.  Inventory overhang will be utilized to offset 
production losses.  Coal prices are typically affected by the price of natural gas.  

 Electricity Prices — The price of electricity is a key determinant of the profitability of the Company.  Many variables such 
as the price of different fuels, weather, load growth and unit availability all coalesce to impact the final price for electricity and 
the Company's profitability. The following table summarizes average on-peak power prices for each of the major markets in which 
NRG operates for the years ended December 31, 2017, 2016, and 2015.  For the year ended December 31, 2017 as compared to 
the same period in 2016, the average on-peak power prices increased primarily due to the increase in natural gas prices.  For the 
year ended December 31, 2016 as compared to the same period in 2015 the average on-peak power prices decreased primarily 
due to the decrease in natural gas prices.

Region
Gulf Coast (a)

ERCOT - Houston(b)
ERCOT - North(b)
MISO - Louisiana Hub(c)

East/West

NY J/NYC(c)
NEPOOL(c)
COMED (PJM)(c)
PJM West Hub(c)
CAISO - NP15(c)
CAISO - SP15(c)

Average on Peak Power Price ($/MWh)

Year Ended December 31
2016

2015

2017

2017 vs 2016
Change %

2016 vs 2015
Change %

$

33.95

$

26.91

$

25.86
40.02

38.34

37.18

32.46

34.14

35.68

36.48

24.53
34.30

35.29

35.05

32.11

33.79

31.73

31.17

28.15

27.61
34.55

46.42

48.25

34.13

41.97

35.50

32.45

26%

5%
17%

9%

6%

1%

1%

12%

17%

(4)%

(11)%
(1)%

(24)%

(27)%

(6)%

(19)%

(11)%

(4)%

(a) Gulf Coast region also transacts in PJM - West Hub.
(b) Average on-peak power prices based on real time settlement prices as published by the respective ISOs.
(c) Average on-peak power prices based on day ahead settlement prices as published by the respective ISOs.

The following table summarizes average realized power prices for each region in which NRG operates for the years ended 

December 31, 2017, 2016, and 2015, which reflects the impact of settled hedges. 

Region
Gulf Coast
East/West

Average Realized Power Price ($/MWh)

Year Ended December 31
2016

2015

2017

2017 vs 2016
Change %

2016 vs 2015
Change %

$

$

36.43
62.07

$

43.34
64.16

42.89
68.79

(16)%
(3)%

1 %
(7)%

Though the average on peak power prices have increased on average by 9% for the year ended December 31, 2017 as 
compared to the same period in 2016, and decreased on average by 15% for the year ended December 31, 2016 as compared to 
the same period in 2015, average realized prices by region for the Company were driven by the Company's multi-year hedging 
program and the success of the Company's commercial operations team in optimizing the value of the Company's assets on a 
daily basis.

Environmental Regulatory Landscape — The MATS rule, finalized in 2012, had been the primary regulatory force behind 
the decision to retrofit, repower or retire uncontrolled coal fired power plants. In June 2015, the U.S. Supreme Court held that the 
EPA unreasonably refused to consider costs when it determined to regulate HAPs emitted by electric generating units. The U.S. 
Supreme Court did not vacate the MATS rule but rather remanded it to the D.C. Circuit for further proceedings.  In December 
2015, the D.C. Circuit remanded the MATS rule to the EPA without vacatur. On April 25, 2016, the EPA released a supplemental 
finding that the benefits of this regulation outweigh the costs to address the U.S. Supreme Court's ruling that the EPA had not 
properly considered costs. This finding has been challenged in the D.C. Circuit. On April 18, 2017, the EPA asked the D.C. Circuit 
to postpone oral argument that had been scheduled for May 18, 2017 because the EPA is closely reviewing the supplemental 
finding to determine whether it should reconsider all or part of the rule. On April 27, 2017, the D.C. Circuit granted the EPA's 
request to postpone the oral argument and hold the case in abeyance. A number of regulations on GHGs, ambient air quality, coal 
combustion byproducts and water use with the potential for increased capital costs or operational impacts have been finalized and 
are under review by the courts and being re-evaluated by the current Administration. The design, timing and stringency of these 
regulations  and  the  legal  outcomes  will  affect  the  decision  to  retrofit  or  retire  existing  fossil  plants.  See  Item  1—  Business, 
Environmental Matters, for further discussion.

Public Policy Support and Government Financial Incentives for Clean Infrastructure Development — Policy mechanisms 
including production and investment tax credits, cash grants, loan guarantees, accelerated depreciation tax benefits, RPS, and 
carbon trading plans have been implemented at the state and federal levels to support the development of renewable generation, 
demand-side and smart grid, and other clean infrastructure technologies.  The availability and continuation of public policy support 
mechanisms will drive a significant part of the economics of the Company's development program.  In December 2015, the U.S. 
Congress enacted an extension of the 30% solar ITC so that projects that began construction in 2016 through 2019 will continue 
to qualify for the 30% ITC.  Projects beginning construction in 2020 and 2021 will be eligible for the ITC at the rates of 26% and 
22% respectively.  The same legislation also extended the 10 year wind PTC for wind projects that began construction in years 
2016 through 2019.  Wind projects that begin construction in the years 2017, 2018 and 2019 are eligible for PTC at 80%, 60% 
and 40% of the statutory rate per kilowatt hour respectively. 

Weather — Weather conditions in the regions of the U.S. in which NRG does business influence the Company's financial 
results.  Weather conditions can affect the supply and demand for electricity and fuels.  Weather may also impact the availability 
of the Company's generating assets.  Changes in energy supply and demand may impact the price of these energy commodities in 
both the spot and forward markets, which may affect the Company's results in any given period. Typically, demand for and the 
price of electricity is higher in the summer and the winter seasons, when temperatures are more extreme. The demand for and 
price of natural gas is also generally higher in the winter.  However, all regions of the U.S. typically do not experience extreme 
weather conditions at the same time, thus NRG is typically not exposed to the effects of extreme weather in all parts of its business 
at once.

Wind and Solar Resource Availability — The availability of the wind and solar resources affects the financial performance 
of the wind and solar facilities, which may impact the Company’s overall financial performance. Due to the variable nature of the 
wind and solar resources, the Company cannot predict the availability of the wind and solar resources and the potential variances 
from expected performance levels from quarter to quarter. To the extent the wind and solar resources are not available at expected 
levels, it could have a negative impact on the Company’s financial performance for such periods.

ERCOT Retirements — A number of announced retirement notices of coal generating facilities owned by others in Texas 
could lower reserve margins in ERCOT. This trend of retirement notices could have an effect on the Company’s results of operations 
and future business performance, particularly in the ERCOT market.

Net Impact of Tax Reform — The Tax Cuts and Jobs Act of 2017, or the Tax Act, which was signed into law on December 
22, 2017, makes significant changes to the taxation of U.S. businesses.  These changes include a permanent reduction to the federal 
corporate income tax rate, changes in the deductibility of interest on certain debt obligations and limiting the amount of NOL 
available to offset taxable income, among other things.  The Tax Act requires the Company to revalue its deferred tax assets, which 
reduced the Company’s deferred tax assets by $733 million offset by valuation allowance of $660 million.  In addition, the Company 
established a non-current receivable for its refundable AMT credits of $64 million, net of sequestration.  The net impact of the 
Tax Act on net income is a decrease of $9 million due to the expense of $73 million resulting from the Company's revaluation of 
its net deferred tax asset, partially offset by a $64 million benefit from establishing the AMT credit receivable.

64

65

 
 
 
 
 
 
 
 
Other Factors — A number of other factors significantly influence the level and volatility of prices for energy commodities 

Significant Events

and related derivative products for NRG's business.  These factors include:

NRG Transformation Plan

• 

• 

• 

• 

• 

• 

• 

seasonal, daily and hourly changes in demand;

extreme peak demands;

available supply resources;

transportation and transmission availability and reliability within and between regions;

location of NRG's generating facilities relative to the location of its load-serving opportunities;

procedures used to maintain the integrity of the physical electricity system during extreme conditions; and

changes in the nature and extent of federal and state regulations.

•  NRG is in process of executing its Transformation Plan. The three-part, three-year plan is comprised of targets in the 
areas of operational and cost excellence, portfolio optimization, and capital structure and allocation enhancement.  For 
further discussion, refer to Item 1 - Business.

•  During 2017, NRG received cash proceeds from asset sales in the amount of $150 million, which includes the sales to 
NRG Yield, Inc. (also included below in Transfers of Assets Under Common Control) and sale of Minnesota wind projects 
to third parties.

•  On February 6, 2018, NRG entered into a purchase and sale agreement with GIP to sell NRG's ownership in NRG Yield, 

These factors can affect energy commodity and derivative prices in different ways and to different degrees.  These effects 

Inc. and NRG's renewables platform for a total purchase price of $1.375 billion, subject to certain conditions. 

may vary throughout the country as a result of regional differences in:

•  weather conditions;

•  market liquidity;

• 

• 

• 

capability and reliability of the physical electricity and gas systems;

local transportation systems; and

the nature and extent of electricity deregulation.

Environmental Matters, Regulatory Matters and Legal Proceedings — Details of environmental matters are presented in 
Item 15 — Note  24,  Environmental  Matters,  to  the  Consolidated  Financial  Statements  and  Item 1—  Business, Environmental 
Matters,  section.  Details  of  regulatory  matters  are  presented  in  Item 15 — Note  23,  Regulatory  Matters,  to  the  Consolidated 
Financial  Statements  and  Item 1—  Business, Regulatory  Matters,  section.    Details  of  legal  proceedings  are  presented  in 
Item 15 — Note 22, Commitments and Contingencies, to the Consolidated Financial Statements.  Some of this information relates 
to costs that may be material to the Company's financial results.

•  On February 6, 2018, NRG entered into a purchase and sale agreement with Cleco to sell NRG's South Central business 

for a total purchase price of $1.0 billion, subject to certain adjustments. 

•  On January 24, 2018, the Company entered into an agreement with NRG Yield, Inc. to sell 100% of its ownership interest 

in Buckthorn Solar for cash consideration of $42 million, subject to other adjustments. 

•  On February 6, 2018, the Company entered into an agreement with NRG Yield, Inc. to sell 100% of the membership 
interests in Carlsbad Energy Holdings LLC, which owns the Carlsbad project, a 527 MW natural gas fired project in 
Carlsbad,  CA,  pursuant  to  the  ROFO Agreement.  The  purchase  price  for  the  transaction  is  $365  million  in  cash 
consideration, subject to customary working capital and other adjustments. 

•  On  February  23,  2018,  the  Company  entered  into  an  agreement  to  sell  BETM  to  a  third  party  for  $70  million. The 
transaction is expected to close in the second half of 2018 and is subject to various customary closing conditions, approvals 
and consents.

GenOn Chapter 11 Bankruptcy Filing 

•  On June 14, 2017, the GenOn Entities filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code in the 
Bankruptcy Court. On December 12, 2017, the Bankruptcy Court entered an order confirming the plan of reorganization. 
For further discussion, refer to Item 15 — Note 1, Nature of Business,  Note 3, Discontinued Operations, Acquisitions 
and Dispositions, and Note 21, Related Party Transactions, to the Consolidated Financial Statements. 

Tax Act

•  As of December 31, 2017, as a result of the Tax Act, the Company reduced its deferred tax assets by $733 million offset 
by valuation allowance of $660 million.  In addition, the Company established a non-current receivable for its refundable 
AMT credits of $64 million, net of sequestration.  The net impact of the Tax Act on net income is a decrease of $9 million 
primarily due to the expense of $73 million resulting from the Company's revaluation of its net deferred tax asset, partially 
offset by a $64 million benefit from establishing the AMT credit receivable.

Transfers of Assets Under Common Control

•  During 2017, the Company completed the sale of several projects totaling 555 MW to NRG Yield, Inc. for aggregate 
cash  consideration  of  approximately  $245  million,  as  discussed  in  more  detail  in  Item  15  —  Note  3,  Discontinued 
Operations, Acquisitions and Dispositions, to the Consolidated Financial Statements.

Financing Activities

•  Debt Issuances — During 2017, the Company issued approximately $0.9 billion in recourse debt, approximately $0.8 
billion in non-recourse debt and repriced the 2023 Term Loan Facility as discussed in more detail in Item 15 - Note 12, 
Debt and Capital Leases, to the Consolidated Financial Statements.

•  Debt Repurchases — During 2017, the Company repurchased $1.5 billion in aggregate principal of outstanding Senior 
Notes for approximately $1.5 billion, including accrued interest, as discussed in more detail in Item 15 - Note 12, Debt 
and Capital Leases, to the Consolidated Financial Statements.

66

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Extreme Weather Events

• 

• 

In late August 2017, Hurricane Harvey made landfall on the Texas coast.  During the third quarter of 2017, the Company’s 
Retail business was impacted by Hurricane Harvey by approximately $20 million.

In addition, during August 2017, NRG's Cottonwood generating station was damaged when the Sabine River Authority 
opened the floodgates of the Toledo Bend reservoir, which resulted in downstream flooding of the Sabine River. The 
generating station was returned to service during the fourth quarter of 2017. The Company estimates the impact of the 
Cottonwood damage and Hurricane Harvey on Gulf Coast Generation to be approximately $20 million.

Impairments

• 

• 

Impairment losses — During 2017, the Company recorded impairment losses of $1.7 billion as discussed in more detail 
in Item 15 — Note 10, Asset Impairments and Note 11, Goodwill and Other Intangibles, to the Consolidated Financial 
Statements.

Impairment losses on Investments — During 2017, the Company recorded impairment losses of $79 million related 
primarily to Petra Nova, as discussed in more detail in Item 15 — Note 10, Asset Impairments, to the Consolidated 
Financial Statements.

Operational Matters

Bacliff Project 

On June 16, 2017, the Company provided notice to BTEC New Albany, LLC that NRG Texas Power LLC was exercising 
its right to terminate the Amended and Restated Membership Interest Purchase Agreement, or MIPA, due to the Bacliff Project, 
a new peaking facility at the former P.H. Robinson Electric Generating Station, not achieving commercial completion by the 
contractual expiration date of May 31, 2017. On July 14, 2017, the Company gave notice to BTEC New Albany, LLC that it owes 
NRG Texas Power LLC approximately $48 million under the terminated MIPA, consisting of $38 million in purchaser incurred 
costs and $10 million in liquidated damages. On July 18, 2017, BTEC filed a lawsuit alleging that NRG Texas Power LLC breached 
the MIPA by improperly terminating it, and seeks a declaratory judgment as to the rights and obligations of the parties.  On August 
14, 2017, NRG filed its answer.  On September 7, 2017, NRG filed a counterclaim for breach of contract seeking damages in 
excess of $48 million. 

  Consolidated Results of Operations for the years ended 2017 and 2016

The following table provides selected financial information for the Company:

(in millions except otherwise noted)
Operating Revenues
Energy revenue (a)
Capacity revenue (a)
Retail revenue
Mark-to-market for economic hedging activities
Contract amortization
Other revenues (b)

Total operating revenues
Operating Costs and Expenses
Cost of sales (b)
Mark-to-market for economic hedging activities
Contract and emissions credit amortization (c)
Operations and maintenance
Other cost of operations

Total cost of operations

Depreciation and amortization
Impairment losses
Selling, general and administrative
Reorganization costs
Development costs

Total operating costs and expenses

Other income - affiliate
Gain/(loss) on sale of assets

Operating (Loss)/ Income
Other Income/(Expense)

Equity in earnings of unconsolidated affiliates
Impairment losses on investments
Other income, net
Net loss on debt extinguishment
Interest expense

Total other (expense)/income

Loss from Continuing Operations Before Income Taxes

Income tax expense

Loss from Continuing Operations

(Loss)/income from discontinued operations, net of income tax

Net Loss

Less: Net loss attributable to noncontrolling interests and redeemable
noncontrolling interests

Net Loss Attributable to NRG Energy, Inc. 
Business Metrics
Average natural gas price — Henry Hub ($/MMBtu)

Includes realized gains and losses from financially settled transactions.
Includes unrealized trading gains and losses.  

(a) 
(b) 
(c)   Includes amortization of SO2 and NOx credits and excludes amortization of RGGI credits.

Year Ended December 31,

2017

2016

Change

$

2,461
1,186
6,388
239
(56)
411
10,629

5,698
46
34
1,393
365
7,536
1,056
1,709
907
44
67
11,319
87
16
(587)

31
(79)
38
(53)
(890)
(953)
(1,540)
8
(1,548)
(789)
(2,337)

$

3,131
1,225
6,357
(642)
(56)
497
10,512

5,827
(508)
43
1,599
340
7,301
1,172
702
1,095
—
89
10,359
193
(80)
266

27
(268)
34
(142)
(895)
(1,244)
(978)
5
(983)
92
(891)

(670)
(39)
31
881
—
(86)
117

129
(554)
9
206
(25)
(235)
116
(1,007)
188
(44)
22
(960)
(106)
96
(853)

4
189
4
89
5
291
(562)
3
(565)
(881)
(1,446)

(184)
(2,153) $

(117)
(774) $

(67)
(1,379)

3.11

$

2.46

26%

$

$

$

68

69

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Gross Margin

The Company calculates gross margin in order to evaluate operating performance as operating revenues less cost of sales, 
which includes cost of fuel, other costs of sales, contract and emission credit amortization and mark-to-market for economic 
hedging activities. 

Economic Gross Margin

In addition to gross margin, the Company evaluates its operating performance using the measure of economic gross margin, 
which is not a GAAP measure and may not be comparable to other companies’ presentations or deemed more useful than the 
GAAP information provided elsewhere in this report.  Economic gross margin should be viewed as a supplement to and not a 
substitute for the Company's presentation of gross margin, which is the most directly comparable GAAP measure.  Economic 
gross margin is not intended to represent gross margin.  The Company believes that economic gross margin is useful to investors 
as it is a key operational measure reviewed by the Company's chief operating decision maker.  Economic gross margin is defined 
as the sum of energy revenue, capacity revenue and other revenue, less cost of fuels and other cost of sales.

Economic  gross  margin  does  not  include  mark-to-market  gains  or  losses  on  economic  hedging  activities,  contract 

amortization, emission credit amortization, or other operating costs.

The tables below present the composition and reconciliation of gross margin and economic gross margin which reflects the 

Company's current view of reporting segments for the years ended December 31, 2017 and 2016:

Year Ended December 31, 2017

(In millions except otherwise noted)

Energy revenue

Capacity revenue

Retail revenue

Mark-to-market for economic hedging activities

Contract amortization
Other revenue(b)

Operating revenue

Cost of fuel
Other costs of sales(c) 

Mark-to-market for economic hedging
activities

Contract and emission credit amortization

Generation

Gulf
Coast

East/
West(a)

$ 1,806

$

266

—

72

14

186

2,344

(994)

(344)

(20)

(30)

830

585

—

(35)

—

49

1,429

(401)

(238)

11

(4)

Subtotal

Retail

Renewables

$ 2,636

$

— $

359

$

851

—

37

14

235

3,773

(1,395)

—

6,385

(4)

(1)

—

6,380

(12)

(582)

(4,756)

(9)

(34)

181

—

—

—

(12)

—

77

424

(4)

(11)

—

—

NRG
Yield

Corporate/
Eliminations

Total

554

346

—

—

(69)

178

1,009

(35)

(28)

—

—

$

(1,088) $

(11)

3

218

—

(79)

(957)

45

1,080

(218)

—

2,461

1,186

6,388

239

(56)

411

10,629

(1,401)

(4,297)

(46)

(34)

Gross margin

$

956

$

797

$ 1,753

$ 1,793

$

409

$

946

$

(50) $

4,851

Less: Mark-to-market for economic hedging
activities, net

Less: Contract and emission credit amortization,
net

52

(16)

(24)

28

177

(4)

(20)

(1)

(12)

—

—

(69)

—

—

193

(90)

Economic gross margin

$

920

$

825

$ 1,745

$ 1,617

$

421

$ 1,015

$

(50) $

4,748

Business Metrics

MWh sold (thousands)(d)(e)
MWh generated (thousands)(f)

53,802

49,574

19,954

13,373

3,836

3,836

6,880

8,761

(a) Includes International, BETM and Generation eliminations.
(b) Renewables Other revenue includes $29 million of intercompany revenue to NRG Yield.  
(c) Includes purchased energy, capacity and emissions credits.
(d) MWh sold excludes generation at facilities in the West and NRG Yield that generate revenue under tolling agreements. 
(e) Does not include MWh of 35 thousand or MWt of 1,926 thousand for thermal sold by NRG Yield.
(f) Does not include MWh of 108 thousand or MWt of 1,926 thousand for thermal generated by NRG Yield.

Year Ended December 31, 2016

Generation

Gulf
Coast

East/
West(a)

Subtotal

Retail

Renewables

NRG
Yield

Corporate/
Eliminations

Total

$ 2,073

$ 1,098

$ 3,171

$

— $

369

$

Mark-to-market for economic hedging activities

(518)

(In millions except otherwise noted)

Energy revenue

Capacity revenue

Retail revenue

Contract amortization
Other revenue (b)

Operating revenue

Cost of fuel
Other costs of sales(c) 

Mark-to-market for economic hedging
activities

Contract and emission credit amortization

293

—

15

237

598

—

(48)

—

85

2,100

1,733

(938)

(387)

71

(29)

(469)

(299)

2

(5)

891

—

(566)

15

322

—

6,336

—

(1)

—

3,833

(1,407)

6,335

(8)

(686)

(4,679)

73

(34)

365

(6)

—

—

(6)

(1)

44

406

(3)

(11)

—

—

Gross margin

$

817

$

962

$ 1,779

$ 2,007

$

392

$

968

$

Less: Mark-to-market for economic hedging
activities, net

Less: Contract and emission credit amortization,
net

(447)

(46)

(493)

365

(14)

(5)

(19)

(7)

(6)

(1)

—

(75)

Economic gross margin

$ 1,278

$ 1,013

$ 2,291

$ 1,649

$

399

$ 1,043

$

Business Metrics

MWh sold (thousands)(d)(e)

MWh generated (thousands)(f)

52,929

47,828

25,995

17,114

3,827

3,827

7,363

9,264

(a) Includes International, BETM and Generation eliminations.
(b) Renewables Other revenue includes $19 million of intercompany revenue to NRG Yield.
(c) Includes purchased energy, capacity and emissions credits.
(d) MWh sold excludes generation at facilities in the West and NRG Yield that generate revenue under tolling agreements. 
(e) Does not include MWh of 71 thousand or MWt of 1,966 thousand for thermal sold by NRG Yield.
(f) Does not include MWh of 275 thousand or MWt of 1,966 thousand for thermal generated by NRG Yield.

The table below represents the weather metrics for 2017 and 2016:

582

345

—

—

(69)

177

$

(991) $

(11)

21

(70)

—

(46)

1,035

(1,097)

(33)

(28)

—

(6)

3,131

1,225

6,357

(642)

(56)

497

10,512

(1,321)

(4,506)

508

(43)

$

5,150

(134)

(99)

$

5,383

130

898

70

3

4

—

3

1

Years ended
December 31,

Quarters ended
December 31,

Quarters ended
September 30,

Quarters ended
June 30,

Quarters ended
March 31,

Weather Metrics

Gulf 
Coast(b)

East/West

Gulf 
Coast(b)

East/West

Gulf 
Coast(b)

East/West

Gulf 
Coast(b)

East/West

Gulf 
Coast(b)

East/West

2017
CDDs(a)
HDDs(a)

2016

CDDs

HDDs

10 year average

CDDs

HDDs

2,949

1,383

2,966

1,529

2,904

1,903

1,155

3,199

1,169

3,191

1,043

3,504

296

710

362

545

249

736

84

1,157

71

1,145

67

1,227

1,528

1

1,655

—

1,617

6

770

34

806

23

705

40

921

41

873

53

957

75

281

380

273

410

254

438

204

631

76

931

81

1,086

20

1,628

19

1,613

17

1,799

(a) National Oceanic and Atmospheric Administration-Climate Prediction Center - A Cooling Degree Day, or CDD, represents the number of degrees that the mean temperature for a 
particular day is above 65 degrees Fahrenheit in each region.  A Heating Degree Day, or HDD, represents the number of degrees that the mean temperature for a particular day is 
below 65 degrees Fahrenheit in each region.  The CDDs/HDDs for a period of time are calculated by adding the CDDs/HDDs for each day during the period.

(b) CDDs/HDDs for the Gulf Coast region represent an average of cumulative population-weighted CDDs/HDDs for Texas and the West South-Central Climate region.

70

71

 
 
 
 
 
 
 
 
Generation gross margin and economic gross margin

Generation gross margin decreased $26 million and economic gross margin decreased $546 million, both of which 

include intercompany sales, during the year ended December 31, 2017 compared to the same period in 2016.

The tables below describe the changes in Generation gross margin and in economic gross margin:

Gulf Coast Region

Lower gross margin due to a 14% decrease in average realized prices primarily in Texas due to lower hedged

power prices

Lower energy margins due to increased supply cost on load contracts

Lower capacity margins on contract expirations and lower demand in South Central business

Lower gross margin due to lower gas generation driven by the current mothball status of Gregory in Texas

Lower gross margin due to a 24% decrease in ISO capacity prices and a 76% decrease in volume
Higher gross margin due to a 17% increase in coal generation mainly in Texas driven by the timing of planned

and unplanned outages

Other
Decrease in economic gross margin

Increase in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open

positions related to economic hedges

Decrease in contract and emission credit amortization
Increase in gross margin

East/West Region

Lower gross margin from commercial optimization activities
Lower gross margin due to a decrease in generation driven by lower economic generation due to milder

weather conditions and the Will County outage

Lower gross margin due to lower load contracted prices coupled with slightly lower volumes

Lower gross margin due to a lower cost of market adjustment for fuel oil inventory

Lower gross margin by BETM due to higher gains in 2016 on over the counter strategies, offset in small part by

higher gains in 2017 congestion strategies

Other
Decrease in economic gross margin

Increase in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open

positions related to economic hedges

Increase in contract and emission credit amortization
Decrease in gross margin

(In millions)

$

$

(315)
(48)
(27)
(17)
(14)

68
(5)
(358)

499
(2)
139

(In millions)

$

$

$

(59)

(54)
(28)
(33)

(20)
6
(188)

22

1
(165)

Retail gross margin and economic gross margin

The following is a discussion of gross margin and economic gross margin for Retail.

(In millions except otherwise noted)

Retail revenue
Supply management revenue
Capacity revenues
Customer mark-to-market
Contract amortization
Other
Operating revenue (a)
Cost of sales (b)
Mark-to-market for economic hedging activities
Contract amortization
Gross margin
Less: Mark-to-market for economic hedging activities, net
Less: Contract and emission credit amortization
Economic gross margin

Business Metrics

Mass electricity sales volume (GWh) - Gulf Coast
Mass electricity sales volume (GWh) - All other regions
C&I electricity sales volume  (GWh) All regions (c)
Natural gas sales volumes (MDth)
Average Retail Mass customer count (in thousands)
Ending Retail Mass customer count (in thousands)

$

$

$

Years ended December 31,

2017

2016

$

$

$

6,115
187
83
(4)
(1)
—
6,380
(4,768)
181
—
1,793
177
(1)
1,617

36,169
6,221
20,400
3,212
2,863
2,876

6,100
154
82
—
(1)
—
6,335
(4,687)
365
(6)
2,007
365
(7)
1,649

35,102
6,764
18,906
2,199
2,778
2,818

(a) 
(b) 
(c) 

Includes intercompany sales of $5 million and $4 million in 2017 and 2016, respectively, representing sales from Retail to the Gulf Coast region.
Includes intercompany purchases of $1,035 million and $850 million in 2017 and 2016, respectively.
Includes volumes for 2017 for one customer that self-supplied their volumes for all of 2016 versus only two months in 2017.

Retail  gross  margin  decreased  $214  million  and  economic  gross  margin  decreased  $32  million  for  the  year  ended 

December 31, 2017, compared to the same period in 2016, due to:

Lower gross margin due to lower rates to customers driven by customer product, term, and mix of $103
million or approximately $1.60 per MWh, partially offset by lower supply costs of $28 million or
approximately $0.50 per MWh driven primarily by a decrease in power prices at the time of procurement
Lower gross margin due to milder weather conditions in 2017 as compared to 2016 resulting in a reduction in

load of  350,000 MWh

Lower gross margin related to the impact of Hurricane Harvey in 2017, driven by $9 million due to a

reduction in load of 200,000 MWh, and the unfavorable impact of selling back excess supply along with $7
million of customer relief

Higher gross margin driven by higher average customer counts of 85,000 along with higher average usage due

to customer mix

Decrease in economic gross margin

Decrease in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open

positions related to economic hedges

Increase in contract and emission credit amortization
Decrease in gross margin

Renewables gross margin and economic gross margin 

(In millions)

$

$

$

(75)

(11)

(16)

70
(32)

(188)
6
(214)

Renewables  gross  margin  increased  $17  million  and  economic  gross  margin  increased  $22  million  for  the  year  ended 
December 31, 2017, compared to the same period in 2016,  primarily driven by new distributed generation solar projects placed 
in service, increased margin in operations and maintenance agreements which focus on servicing NRG Yield assets and receipt 
of insurance proceeds offsetting lower volume at the Ivanpah solar plant.

72

73

 
 
 
 
 
 
 
 
NRG Yield gross margin and economic gross margin

NRG Yield  gross  margin  decreased  $22  million  and  economic  gross  margin  decreased  $28  million  for  the  year  ended 
December 31, 2017, compared to the same period in 2016,  primarily due to a 5% decrease in volume generated at our Alta Wind 
and NRG Wind TE Holdco projects, due to lower wind resources.

Mark-to-market for Economic Hedging Activities

Mark-to-market for economic hedging activities includes asset-backed hedges that have not been designated as cash flow 
hedges.  Total net mark-to-market results increased by $327 million during the year ended December 31, 2017, compared to the 
same period in 2016.

The breakdown of gains and losses included in operating revenues and operating costs and expenses by region was as follows: 

Generation

Gulf
Coast

East/
West

Year Ended December 31, 2017

Retail

Renewables

Elimination (a)

Total

(In millions)

Mark-to-market results in operating revenues

Reversal of previously recognized unrealized losses/

(gains) on settled positions related to economic hedges

$

107

$

(40) $

(2) $

1

$

64

$

(35)

5

(2)

(13)

154

$

72

$

(35) $

(4) $

(12)

$

218

$

130

109

239

Net unrealized (losses)/gains on open positions related to

economic hedges

Total mark-to-market gains/(losses) in operating

revenues

Mark-to-market results in operating costs and

expenses

Reversal of previously recognized unrealized gains on

settled positions related to economic hedges

Net unrealized (losses)/gains on open positions related to

economic hedges

Total mark-to-market (losses)/gains in operating costs

and expenses

(a)  Represents the elimination of the intercompany activity between Retail and Generation.

$

(17) $

(1) $

(1) $

— $

(64) $

(83)

(3)

12

182

—

(154)

37

$

(20) $

11

$

181

$

— $

(218) $

(46)

Year Ended December 31, 2016

Generation

Gulf
Coast

East/
West

Retail

Renewables

(In millions)

NRG
Yield

Elimination(a)

Total

Mark-to-market results in operating

revenues

Reversal of previously recognized unrealized
(gains)/losses on settled positions related to
economic hedges

Net unrealized (losses)/gains on open positions

related to economic hedges

Total mark-to-market losses in operating

revenues

Mark-to-market results in operating costs

and expenses

Reversal of previously recognized unrealized
losses/(gains) on settled positions related to
economic hedges

Reversal of acquired gain positions related to

economic hedges

Net unrealized gains/(losses) on open positions

related to economic hedges

Total mark-to-market gains in operating

costs and expenses

$

(389) $

(89) $

(2) $

— $

— $

33

$

(447)

(129)

41

2

(6)

—

(103)

(195)

$

(518) $

(48) $

— $

(6) $

— $

(70) $

(642)

$

31

$

16

$

305

$

— $

— $

(33) $

319

—

40

(12)

(2)

—

60

—

—

—

—

—

103

$

71

$

2

$

365

$

— $

— $

70

$

(12)

201

508

(a) Represents the elimination of the intercompany activity between Retail and Generation.

Mark-to-market results consist of unrealized gains and losses on contacts that are yet to be settled.  The settlement of these 

transactions is reflected in the same revenue or cost caption as the items being hedged.

The reversals of acquired gain or loss positions were valued based upon the forward prices on the acquisition date.

For the year ended December 31, 2017, the $239 million gain in operating revenues from economic hedge positions was 
driven primarily by the reversal of previously recognized unrealized losses on contracts that settled during the period and an 
increase in value of open positions as a result of decreases in gas prices.  The $46 million loss in operating costs and expenses 
from economic hedge positions was driven primarily by the reversal of previously recognized unrealized gains on contracts that 
settled during the period partially offset by an increase in the value of open positions as a result of increases in ERCOT heat rate.  

In accordance with ASC 815, the following table represents the results of the Company's financial and physical trading of 
energy commodities for the years ended December 31, 2017 and 2016.  The realized and unrealized financial and physical trading 
results  are  included  in  operating  revenue. The  Company's  trading  activities  are  subject  to  limits  within  the  Company's  Risk 
Management Policy and are primarily transacted through BETM.

(In millions)

Trading gains/(losses)

Realized

Unrealized

Total trading gains

Year ended December 31,

2017

2016

$

$

43
(11)
32

$

$

71

28

99

74

75

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operations and Maintenance Expense 

Depreciation and Amortization

Generation

Gulf Coast

East/West

Retail

Renewables

NRG
Yield

Corporate Eliminations

Total

(In millions)

Generation

Retail

Renewables

NRG
Yield

Corporate

Total

(In millions)

Year Ended December 31, 2017

Year Ended December 31, 2016

$

$

515

577

$

$

371

488

$

$

222

245

$

$

118

122

$

$

196

176

$

$

15

27

$

$

(44) $

(36) $

1,393

1,599

Year Ended December 31, 2017

Year Ended December 31, 2016

$

$

377

516

$

$

117

111

$

$

196

185

$

$

334

303

$

$

32

57

$

$

1,056

1,172

Operations and maintenance expenses decreased by $206 million for the year ended December 31, 2017, compared to the 

same period in 2016, due to the following:

Depreciation and amortization expense decreased by $116 million for the year ended December 31, 2017, compared to the 

same period in 2016, due to the Jewett Mine being fully depreciated in December 2016 as well as impairments in 2016.

(In millions)

Impairment Losses

Decrease in operation and maintenance expenses due to major maintenance activities and environmental

control work at Midwest Generation offset by higher variable operating costs

Decrease in operations and maintenance expenses due to timing of planned outages in Texas

Decrease in operations and maintenance expenses due to lower expenses at Big Cajun II in 2017

Decrease in operations and maintenance expenses due to the deactivation of the Huntley and Dunkirk facilities

in 2016

Decrease in Retail operation and maintenance expenses due to reduced headcount

Decrease in operations and maintenance expense due to a reduction in headcount related to the sale of the

engine services business

Operations and maintenance expense increased due to forced outages at Walnut Creek and El Segundo in 2017

Other

Other Cost of Operations 

$

$

(96)
(32)
(24)

(18)
(22)

(10)
20
(24)
(206)

Generation

Gulf Coast

East/West

Retail

Renewables

NRG
Yield

Corporate

Total

For the year ended December 31, 2017, the Company recorded impairment losses of $1,709 million related to various facilities 
as further described in Item 15 — Note 10, Asset Impairments and Note 11, Goodwill and Other Intangibles, to the Consolidated 
Financial Statements.

In 2016, the Company recorded impairment losses of $702 million related to various facilities, as well as goodwill for its 
Texas reporting units, as further described in Item 15 — Note 10, Asset Impairments and Note 11, Goodwill and Other Intangibles, 
to the Consolidated Financial Statements. 

Selling, General and Administrative Expenses

Year Ended December 31, 2017
Year Ended December 31, 2016

$
$

207
265

$
$

452
498

$
$

(In millions)

56
61

$
$

22
17

$
$

170
254

$
$

907
1,095

Generation

Retail

Renewables

NRG Yield

Corporate

Total

Selling, general and administrative expenses decreased by $188 million for the year ended December 31, 2017 compared 

to the same period in 2016.  The decrease in year over year expenses is due primarily to a reduction in personnel costs and 
selling and marketing activities as the Company continues to focus on cost management.

(In millions)

Reorganization Costs

Year Ended December 31, 2017

Year Ended December 31, 2016

$

$

101

95

$

$

76

66

$

$

100

93

$

$

21

20

$

$

67

65

$

$

— $

1

$

365

340

Other cost of operations, increased by $25 million for the year ended December 31, 2017, compared to the same period in 

2016.

Increase in asset retirement expenses of $18 million in the East, offset by a reduction in property taxes at

Huntley and Dunkirk

Increase in expense due to a $10 million sales tax audit settlement received in 2016, offset slightly by a

decrease in gross receipt taxes in 2017

Increase of $14 million in reclamation expenses at the Jewett Mine, offset by favorable tax assessments related

to coal plants in Texas

Other

(In millions)

$

$

10

7

4

4

25

Reorganization costs of $44 million, primarily related to employee costs were incurred as part of the Transformation Plan 

announced in 2017.

Other Income - Affiliate

Other income - affiliate represents the services fees charged to GenOn for shared services under the Services Agreement  

through the June 14, 2017, the date of deconsolidation. 

Gain/(Loss) on Sale of Assets

During the year ended December 31, 2017, the Company sold land and certain wind assets which resulted in gains of $16 
million. During the year ended December 31, 2016, the Company sold a majority interest in its EVgo business to Vision Ridge 
Partners, which resulted in a loss on sale as described in Item 15 — Note 3, Discontinued Operations, Acquisitions and Dispositions, 
to the Consolidated Financial Statements. 

Impairment Losses on Investments

For the year ended December 31, 2017, the Company recorded other-than-temporary impairment losses of $79 million, 
which is primarily due to an other-than-temporary impairment of the Company's investment in Petra Nova Parish Holdings, as 
further described in Item 15 — Note 10, Asset Impairments, to the Consolidated Financial Statements.

For the year ended December 31, 2016, the Company recorded other-than-temporary impairment losses of $268 million, 
which is primarily due to other-than-temporary impairments on the Company's interests in Petra Nova Parish Holdings, Sherbino 
and  Community Wind  North,  as  further  described  in  Item  15  —  Note  10,  Asset  Impairments,  to  the  Consolidated  Financial 
Statements.

76

77

 
 
 
 
 
 
Loss on Debt Extinguishment 

Income from Discontinued Operations, Net of Income Tax

For the year ended December 31, 2017, NRG recorded loss from discontinued operations, net of income tax (benefit)/expense 
of  $789  million,  related  to  GenOn,  as  further  described  in  Item  15  —  Note  3,  Discontinued  Operations,  Acquisitions  and 
Dispositions.

For the year ended December 31, 2016, NRG recorded income from discontinued operations, net of income tax (benefit)/

expense of $92 million, related to GenOn, as further described in Item 15 — Note 3, Discontinued Operations, Acquisitions and 
Dispositions. 

Net loss attributable to noncontrolling interests and redeemable noncontrolling interests

Net loss attributable to noncontrolling interests and redeemable noncontrolling interests was $184 million for the year ended 
December 31, 2017, compared to $117 million for the year ended December 31, 2016. For the years ended December 31, 2017, 
and 2016, the net losses attributable to noncontrolling interests primarily reflect losses allocated to tax equity investors using the  
hypothetical liquidation at book value, or HLBV, method, offset in part by NRG Yield, Inc.'s share of income for the period.

A loss on debt extinguishment of $53 million was recorded for the year ended December 31, 2017, primarily driven by the 

redemption of NRG Senior Notes at a price above par value.

A loss on debt extinguishment of $142 million was recorded for the year ended December 31, 2016, primarily driven by the 
repurchase of NRG Senior Notes at a price above par value and the write-off of the unamortized debt issuance costs related to the 
replacement of the 2018 Term Loan Facility with the new 2023 Term Loan Facility.

Income Tax Expense

For the year ended December 31, 2017, NRG recorded income tax expense of $8 million on a pre-tax loss of $1,540 million.  
For the same period in 2016, NRG recorded income tax expense of $5 million on a pre-tax loss of $978 million.  The effective 
tax rate was (0.5)% and (0.5)% for the years ended December 31, 2017 and 2016, respectively. 

For the year ended December 31, 2017, NRG's overall effective tax rate was different than the statutory rate of 35% primarily 
due to tax expense recorded from the revaluation of the existing net deferred tax asset and state taxes, partially offset by the change 
in valuation allowance, establishing the AMT credit receivable and the generation of PTC's from various wind facilities. The tax 
expense recorded for revaluation of the net deferred tax asset is required to reflect the reduction in the corporate income tax rate 
from 35% to 21% in accordance with the Tax Act.

Year Ended December 31,

2017

2016

(In millions
except as otherwise stated)

Loss before income taxes

$

(1,540)

$

Tax at 35%
State taxes
Foreign operations
Tax Act - corporate income tax rate change
Valuation allowance due to corporate income tax rate change
Valuation allowance - current period activities
Impact of non-taxable entity earnings
Book goodwill impairment
Net interest accrued on uncertain tax positions
Production tax credits
Recognition of uncertain tax benefits
Tax expense attributable to consolidated partnerships
State rate change including true-up to current period activity
AMT refundable credit
Other
Income tax expense
Effective income tax rate

(539)
19
2
733
(660)
482
(5)
30
—
(20)
(5)
4
18
(64)
13
8
(0.5)%

$

$

(978)

(342)
—
10
—
—
398
22
—
1
(26)
2
(1)
(59)
—
—
5
(0.5)%

The effective income tax rate may vary from period to period depending on, among other factors, the geographic and business 
mix of earnings and losses and changes in valuation allowances in accordance with ASC 740, Income Taxes, or ASC 740. These 
factors and others, including the Company's history of pre-tax earnings and losses, are taken into account in assessing the ability 
to realize deferred tax assets.

78

79

 
 
 
 
 
 
 
 
 
Consolidated Results of Operations for the years ended 2016 and 2015

Gross Margin

The following table provides selected financial information for the Company:

(In millions except otherwise noted)
Operating Revenues
Energy revenue (a)
Capacity revenue (a)
Retail revenue
Mark-to-market for economic hedging activities
Contract amortization
Other revenues (b)

Total operating revenues
Operating Costs and Expenses
Cost of sales (a)
Mark-to-market for economic hedging activities
Contract and emissions credit amortization (c)
Operations and maintenance
Other cost of operations

Total cost of operations

Depreciation and amortization
Impairment losses
Selling, general and administrative
Development costs

Total operating costs and expenses

Other income - affiliate
Loss on sale of assets

   Gain on postretirement benefits curtailment
Operating Income/(Loss)
Other Income/(Expense)

Equity in earnings of unconsolidated affiliates
Impairment losses on investments
Other income, net
Loss on sale of equity method investment
Net (loss)/gain on debt extinguishment
Interest expense

Total other expense

Loss from Continuing Operations Before Income Taxes

Income tax expense

Net Loss from Continuing Operations

Income/(loss) from discontinued operations, net of tax
Net Loss
Less: Net loss attributable to noncontrolling interests and redeemable
noncontrolling interests

Net Loss Attributable to NRG Energy, Inc. 
Business Metrics
Average natural gas price — Henry Hub ($/MMBtu)

Includes realized gains and losses from financially settled transactions.  

(a) 
(b)   Includes unrealized trading gains and losses.
(c)   Includes amortization of SO2 and NOx credits and excludes amortization of RGGI.

$

$

$

Year Ended December 31,

2016

2015

Change

$

3,131
1,225
6,357
(642)
(56)
497
10,512

5,827
(508)
43
1,599
340
7,301
1,172
702
1,095
89
10,359
193
(80)
—
266

27
(268)
34
—
(142)
(895)
(1,244)
(978)
5
(983)
92
(891)

3,867
1,361
6,867
(134)
(40)
407
12,328

6,870
59
41
1,657
373
9,000
1,351
4,860
1,228
154
16,593
193
—
21
(4,051)

36
(56)
26
(14)
10
(937)
(935)
(4,986)
1,345
(6,331)
(105)
(6,436)

$

(736)
(136)
(510)
(508)
(16)
90
(1,816)

1,043
567
(2)
58
33
1,699
179
4,158
133
65
6,234
—
(80)
(21)
4,317

(9)
(212)
8
14
(152)
42
(309)
4,008
1,340
5,348
197

5,545

(63)

5,608

(117)
(774) $

(54)
(6,382) $

2.46

$

2.66

(8)%

The Company calculates gross margin in order to evaluate operating performance as operating revenues less cost of sales, 
which includes cost of fuel, other costs of sales, contract and emission credit amortization and mark-to-market for economic 
hedging activities. 

Economic Gross Margin

In addition to gross margin, the Company evaluates its operating performance using the measure of economic gross margin, 
which is not a GAAP measure and may not be comparable to other companies’ presentations or deemed more useful than the 
GAAP information provided elsewhere in this report.  Economic gross margin should be viewed as a supplement to and not a 
substitute for the Company's presentation of gross margin, which is the most directly comparable GAAP measure.  Economic 
gross margin is not intended to represent gross margin.  The Company believes that economic gross margin is useful to investors 
as it is a key operational measure reviewed by the Company's chief operating decision maker.  Economic gross margin is defined 
as the sum of energy revenue, capacity revenue and other revenue, less cost of fuels and other cost of sales.

Economic  gross  margin  does  not  include  mark-to-market  gains  or  losses  on  economic  hedging  activities,  contract 

amortization, emission credit amortization, or other operating costs.

The tables below present the composition and reconciliation of gross margin and economic gross margin which reflects the 

Company's current view of reporting segments for the years ended December 31, 2016 and 2015:

Year Ended December 31, 2016

Generation

Gulf
Coast

East/
West

Subtotal

Retail

Renewables

NRG
Yield

Corporate/
Eliminations

Total

$ 2,073

$ 1,098

$ 3,171

$

— $

369

$

Mark-to-market for economic hedging activities

(518)

(In millions except otherwise noted)

Energy revenue

Capacity revenue

Retail revenue

Contract amortization
Other revenue (a)

Operating revenue

Cost of fuel
Other costs of sales(b) 

Mark-to-market for economic hedging
activities

Contract and emission credit amortization

293

—

15

237

598

—

(48)

—

85

2,100

1,733

(938)

(387)

71

(29)

(469)

(299)

2

(5)

891

—

(566)

15

322

—

6,336

—

(1)

—

3,833

(1,407)

6,335

(8)

(686)

(4,679)

73

(34)

365

(6)

—

—

(6)

(1)

44

406

(3)

(11)

—

—

Gross margin

$

817

$

962

$ 1,779

$ 2,007

$

392

$

968

$

Less: Mark-to-market for economic hedging
activities, net

Less: Contract and emission credit amortization,
net

(447)

(46)

(493)

365

(14)

(5)

(19)

(7)

(6)

(1)

—

(75)

Economic gross margin

$ 1,278

$ 1,013

$ 2,291

$ 1,649

$

399

$ 1,043

$

Business Metrics

MWh sold (thousands)(c)(d)
MWh generated (thousands)(e)

52,929

47,828

25,995

17,114

3,827

3,827

7,363

9,264

(a) Renewables Other revenue includes $19 million of intercompany revenue to NRG Yield.
(b) Includes purchased energy, capacity and emissions credits.
(c) MWh sold excludes generation at facilities in the West and NRG Yield that generate revenue under tolling agreements. 
(d) Does not include MWh of 71 thousand or MWt of 1,966 thousand for thermal sold by NRG Yield.
(e) Does not include MWh of 275 thousand or MWt of 1,966 thousand for thermal generated by NRG Yield.

582

345

—

—

(69)

177

$

(991) $

(11)

21

(70)

—

(46)

1,035

(1,097)

(33)

(28)

—

(6)

3,131

1,225

6,357

(642)

(56)

497

10,512

(1,321)

(4,506)

508

(43)

$

5,150

(134)

(99)

$

5,383

130

898

70

3

4

—

3

1

80

81

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(In millions except otherwise noted)

Energy revenue

Capacity revenue

Retail revenue

Mark-to-market for economic hedging activities

Contract amortization
Other revenue (a)

Operating revenue

Cost of fuel
Other costs of sales(b) 

Mark-to-market for economic hedging
activities

Contract and emission credit amortization

Year Ended December 31, 2015

Generation

Gulf
Coast

East/
West

Subtotal

Retail

Renewables

NRG
Yield

Corporate/
Eliminations

Total

$ 2,443

$ 1,629

$ 4,072

$

— $

356

$

290

—

(66)

15

207

2,889

(1,137)

(355)

(17)

(28)

737

—

(76)

—

—

2,290

(715)

(442)

(29)

(7)

1,027

—

(142)

15

207

5,179

(1,852)

—

6,910

4

(1)

—

6,913

(9)

(797)

(5,236)

(46)

(35)

(4)

(6)

—

—

(3)

—

30

383

(4)

(12)

—

—

495

341

—

(2)

(54)

188

968

(43)

(28)

—

—

$

(1,056) $

(7)

(43)

9

—

(18)

(1,115)

152

959

(9)

—

3,867

1,361

6,867

(134)

(40)

407

12,328

(1,756)

(5,114)

(59)

(41)

Gross margin

$ 1,352

$ 1,097

$ 2,449

$ 1,658

$

367

$

897

$

(13) $

5,358

Less: Mark-to-market for economic hedging
activities, net

Less: Contract and emission credit amortization,
net

(83)

(105)

(188)

(13)

(7)

(20)

—

(7)

(3)

—

(2)

(54)

—

—

(193)

(81)

Economic gross margin

$ 1,448

$ 1,209

$ 2,657

$ 1,665

$

370

$

953

$

(13) $

5,632

Business Metrics

MWh sold (thousands)(c)(d)

MWh generated (thousands)(e)

58,127

54,162

37,403

24,623

3,685

3,739

6,760

9,247

(a) Renewables Other revenue includes $11 million of intercompany revenue to NRG Yield.
(b) Includes purchased energy, capacity and emissions credits.
(c) MWh sold excludes generation at facilities in the West and NRG Yield that generate revenue under tolling agreements. 
(d) Does not include MWh of 297 thousand or MWt of 1,946 thousand for thermal sold by NRG Yield.
(e) Does not include MWh of 297 thousand or MWt of 1,946 thousand for thermal generated by NRG Yield.

The table below represents the weather metrics for 2016 and 2015:

Years ended
December 31,

Quarter ended
December 31,

Quarter ended
September 30,

Quarter ended
June 30,

Quarter ended
March 31,

Weather Metrics

Gulf 
Coast(b)

East/West

Gulf 
Coast(b)

East/West

Gulf 
Coast(b)

East/West

Gulf 
Coast(b)

East/West

Gulf 
Coast(b)

East/West

2016
CDDs(a)
HDDs(a)

2015

CDDs

HDDs

10 year average

CDDs

HDDs

2,967

1,529

2,870

1,887

2,897

1,928

1,169

3,190

1,223

3,322

1,028

3,556

362

545

286

556

240

754

71

1,145

107

1,029

65

1,233

1,655

—

1,652

—

1,597

4

806

23

798

16

688

49

873

53

892

47

969

77

273

410

293

390

259

448

76

931

41

1,285

90

1,092

19

1,613

25

1,887

16

1,827

(a)  National Oceanic and Atmospheric Administration-Climate Prediction Center - A Cooling Degree Day, or CDD, represents the number of degrees that the 
mean temperature for a particular day is above 65 degrees Fahrenheit in each region. A Heating Degree Day, or HDD, represents the number of degrees that 
the mean temperature for a particular day is below 65 degrees Fahrenheit in each region. The CDDs/HDDs for a period of time are calculated by adding the 
CDDs/HDDs for each day during the period.

(b)  CDDs/HDDs for the Gulf Coast region represent an average of cumulative population-weighted CDDs/HDDs for Texas and the West South-Central Climate 

region.

Generation gross margin and economic gross margin

Generation gross margin decreased $670 million and economic gross margin decreased $366 million, both of which include 

intercompany sales, during the year ended December 31, 2016, compared to the same period in 2015.

The tables below describe the decrease in Generation gross margin and economic gross margin:

Gulf Coast Region

Lower gross margin resulting from lower average realized energy prices due to a decline in natural gas prices

and increased wind generation in Texas

Lower gross margin primarily due to 11% lower coal generation and 21% lower gas generation in Texas, which
was driven by lower gas prices, increased wind generation in Texas, an increase in unplanned outages and
timing of planned outages

Higher gross margin resulting from a 12% increase in nuclear generation driven by reduced unplanned outages

and the timing of planned outages

Other
Decrease in economic gross margin

Decrease in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open
positions related to economic hedges

Decrease in contract and emission credit amortization
Decrease in gross margin

East/West Region 

Lower gross margin due to a 24% decrease in generation primarily driven by the environmental control work at

Powerton and fuel conversion projects at Joliet

Lower gross margin due to decreased realized capacity prices in New York due to a change in the mix of

capacity resources and a 15% decrease in PJM cleared auction prices

Lower gross margin due to the deactivation of the Huntley and Dunkirk facilities as well as the sale of the

Rockford

Lower gross margin due to lower contracted volumes

Lower gross margin due to a decrease in realized energy prices due to the decline in natural gas prices

Lower gross margin due to a 7% decrease in resource adequacy capacity volumes sold in California due to unit

retirements and a 4% decrease in price

Higher gross margin by BETM due to higher gains in 2016 on over the counter strategies

Changes in commercial optimization activities

Other
Decrease in economic gross margin

Increase in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open

positions related to economic hedges

Increase in contract and emission credit amortization
Decrease in gross margin

(In millions)

$

(148)

(82)

55

5
(170)

(364)
(1)
(535)

$

$

(In millions)

$

(141)

(79)

(66)
(12)
(12)

(10)

88

50
(14)
(196)

59

2
(135)

$

$

82

83

 
 
 
 
 
 
 
 
  Retail gross margin and economic gross margin

 Renewables gross margin and economic gross margin 

Years ended December 31,

2016

2015

Renewables  gross  margin  increased  $25  million  and  economic  gross  margin  increased  $29  million  for  the  year  ended 
December 31, 2016, compared to the same period in 2015,  primarily driven by a 15% increase in generation at both the Mountain 
Wind I and II facilities, a 4% increase in generation at the Ivanpah solar plant and generation from the Guam solar plant that 
reached COD in the third quarter of 2015.

The following is a discussion of gross margin and economic gross margin for Retail.

(In millions except otherwise noted)

Retail revenue
Supply management revenue
Capacity revenues
Customer mark-to-market
Contract amortization
Other
Operating revenue (a)
Cost of sales (b)
Mark-to-market for economic hedging activities
  Contract amortization
Gross margin
Less: Mark-to-market for economic hedging activities, net
Less: Contract and emission credit amortization
Economic gross margin

Business Metrics

Mass electricity sales volume (GWh) - Gulf Coast
Mass electricity sales volume (GWh) - All other regions
C&I electricity sales volume  (GWh) All regions
 Natural gas sales volumes (MDth)
Average Retail Mass customer count (in thousands)
Ending Retail Mass customer count (in thousands)

$

$

$

$

$

$

6,100
154
82
—
(1)
—
6,335
(4,687)
365
(6)
2,007
365
(7)
1,649

25,102
6,674
18,906
2,199
2,778
2,818

6,629
165
116
4
(1)
—
6,913
(5,245)
(4)
(6)
1,658
—
(7)
1,665

34,600
8,090
19,342
1,901
2,775
2,755

(a) 
(b) 

Includes intercompany sales of $4 million and $3 million in 2016 and 2015, respectively, representing sales from Retail to the Gulf Coast region.
Includes intercompany purchases of $850 million and $895 million in 2016 and 2015, respectively.

Retail  gross  margin  increased  $350  million  and  economic  gross  margin  decreased  $15  million  for  the  year  ended 

December 31, 2016, compared to the same period in 2015, due to: 

Higher gross margin due to lower supply costs of $452 million or approximately $7.00 per MWh driven by a
decrease in natural gas prices, partially offset by lower rates to customers of $431 million or approximately
$6.50 per MWh

Lower gross margin of $19 million due to the unfavorable impact of selling back excess supply and $3 million

in lower margin from a reduction in load of 86,000 MWhs due to milder weather conditions in 2016 as
compared to 2015

Lower gross margin due to lower volumes driven by lower average customer usage and mix
Decrease in economic gross margin

Increase in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open

positions related to economic hedges

Increase in gross margin

$

$

$

21

(22)
(14)
(15)

365

350

NRG Yield gross margin and economic gross margin

NRG Yield  gross  margin  increased  $71  million  and  economic  gross  margin  increased  $90  million  for  the  year  ended 
December 31, 2016, compared to the same period in 2015, primarily related to a 26% increase in volume generated at Alta wind 
projects as well as an increase in price per MWh at Alta X and XI wind projects as the PPAs began in January 2016 compared to 
merchant prices in 2015.

Mark-to-market for Economic Hedging Activities

Mark-to-market for economic hedging activities includes asset-backed hedges that have not been designated as cash flow 
hedges. Total net mark-to-market results increased by $59 million in the year ended December 31, 2016, compared to the same 
period in 2015.

The breakdown of gains and losses included in operating revenues and operating costs and expenses by region are as follows:

Generation

Year Ended December 31, 2016

Gulf Coast

East/West

Retail

Renewables

NRG Yield

Elimination(a)

Total

(In millions)

Mark-to-market results in operating

revenues

Reversal of previously recognized

unrealized (gains)/losses on settled
positions related to economic hedges

Net unrealized (losses)/gains on open

positions related to economic hedges

Total mark-to-market losses in operating

revenues

and expenses

Reversal of previously recognized

unrealized losses/(gains) on settled
positions related to economic hedges

Reversal of acquired gain positions related

to economic hedges

Net unrealized gains/(losses) on open

positions related to economic hedges

Total mark-to-market gains in operating

costs and expenses

$

$

$

(389) $

(89) $

(2) $

— $

— $

33

$

(447)

(129)

41

2

(6)

—

(103)

(195)

(518) $

(48) $ — $

(6) $

— $

(70) $

(642)

31

$

16

$

305

$

— $

— $

(33) $

319

—

40

(12)

(2)

—

60

—

—

—

—

—

103

(12)

201

$

71

$

2

$

365

$

— $

— $

70

$

508

(a)  Represents the elimination of the intercompany activity between Retail and Generation.

(In millions)

Mark-to-market results in operating costs

84

85

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Generation

Year Ended December 31, 2015

Gulf Coast

East/West

Retail

Renewables

NRG Yield

Elimination(a)

Total

(In millions)

Operations and Maintenance Expense

Generation

Gulf Coast

East/West

Retail

Renewables

NRG
Yield

Corporate Eliminations

Total

(In millions)

Year Ended December 31, 2016

Year Ended December 31, 2015

$

$

577

654

$

$

488

487

$

$

245

225

$

$

122

96

$

$

176

180

$

$

27

25

$

$

(36) $

(10) $

1,599

1,657

(408) $

(158) $

(1) $

(3) $

(2) $

45

$

(527)

Operations and maintenance expenses decreased by $58 million for the year ended December 31, 2016, compared to 

the same period in 2015, due to the following:

342

82

(66) $

(76) $

5

4

—

—

(36)

393

$

(3) $

(2) $

9

$

(134)

Decrease in Gulf Coast operations and maintenance expense primarily related to the timing of planned outages

at the Texas coal plants and STP

Decrease in East operations and maintenance expense due to unit deactivations at Huntley, Dunkirk, and Will

County

34

$

3

$

373

$

— $

— $

(45) $

365

Decrease in West operations and maintenance expense primarily due to the retirement of the El Segundo

—

(51)

(18)

(14)

(4)

(373)

—

—

—

—

—

36

(22)

(402)

$

(17) $

(29) $

(4) $

— $

— $

(9) $

(59)

facility and lower operation and maintenance costs at Encina

Increase in East operations and maintenance expense due to the Joliet conversion project and environmental

control work at Midwest Generation, offset by lower variable operating costs due to the decreased generation
volumes.

Increase in Renewables operating costs due primarily to increased production at the Ivanpah solar plant,

Mountain Wind I and II facilities and the Guam solar plant which reached COD in the fourth quarter of 2015

Mark-to-market results in operating

revenues

Reversal of previously recognized

unrealized (gains)/losses on settled
positions related to economic hedges

Net unrealized gains/(losses) on open

positions related to economic hedges

Total mark-to-market (losses)/gains in

operating revenues

Mark-to-market results in operating

costs and expenses

Reversal of previously recognized

unrealized losses/(gains) on settled
positions related to economic hedges

Reversal of acquired gain positions related

to economic hedges

Net unrealized (losses)/gains on open

positions related to economic hedges

Total mark-to-market losses in operating

costs and expenses

$

$

$

(In millions)

$

$

(66)

(19)

(8)

20

9

6
(58)

Other

Other cost of operations

Generation

Gulf Coast

East/West

Retail

Renewables

(In millions)

NRG
Yield

Corporate

Total

Year Ended December 31, 2016

Year Ended December 31, 2015

$

$

95

94

$

$

66

74

$

$

93

112

$

$

20

21

$

$

65

72

$

$

1

$

— $

340

373

Other cost of operations, comprised of asset retirement expense, insurance expense and property tax expense, decreased 

by $33 million for the year ended December 31, 2016, compared to the same period in 2015, primarily due to a decrease in 
gross tax receipts taxes of $10 million related to lower retail revenue and $10 million favorable settlement of Texas sales tax 
audit.

(a)  Represents the elimination of the intercompany activity between Retail and Generation.

Mark-to-market results consist of unrealized gains and losses on contracts that are not yet settled. The settlement of these 

transactions is reflected in the same revenue or cost caption as the items being hedged.

The reversals of acquired gain or loss positions were valued based upon the forward prices on the acquisition date.

For the year ended December 31, 2016, the $642 million loss in operating revenues from economic hedge positions was 
driven primarily by the reversal of previously recognized unrealized gains on contracts that settled during the period and a decrease 
in value of open positions as a result of increases in gas prices. The $508 million gain in operating costs and expenses from 
economic hedge positions was driven primarily by the reversal of previously recognized unrealized losses on contracts that settled 
during the period and an increase in the value of open positions as a result of increases in coal and gas prices partially offset by 
the reversal of acquired contracts.

In accordance with ASC 815, the following table represents the results of the Company's financial and physical trading of 
energy commodities for the years ended December 31, 2016 and 2015. The realized and unrealized financial and physical trading 
results  are  included  in  operating  revenues. The  Company's  trading  activities  are  subject  to  limits  within  the  Company's  Risk 
Management Policy.

Trading gains/(losses)

Realized
Unrealized

Total trading gains/(losses)

Year Ended December 31,

2016

2015

(In millions)

$

$

71
28
99

$

$

57
(76)
(19)

86

87

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Depreciation and Amortization

Interest Expense

Generation

Retail

Renewables

NRG
Yield

Corporate

Total

(In millions)

NRG's interest expense decreased by $42 million for the year ended December 31, 2016, compared to the same period 

in 2015, due to the following:

Year Ended December 31, 2016

Year Ended December 31, 2015

$

$

516

693

$

$

111

132

$

$

185

176

$

$

303

303

$

$

57

47

$

$

1,172

1,351

Depreciation and amortization expense decreased by $179 million for the year ended December 31, 2016, compared to the 
same period in 2015, primarily due to a $116 million decrease related to the impairment of the Limestone and W.A. Parish facilities 
located in the Gulf Coast region in 2015 and a $68 million decrease related to the impairment of the Dunkirk and Huntley facilities 
located in the East region in 2015.

Impairment Losses

In 2016, the Company recorded impairment losses of $702 million related to various facilities, as well as goodwill for its 
Texas reporting unit, as further described in Item 15 — Note 10, Asset Impairments and Note 11, Goodwill and Other Intangibles, 
to the Consolidated Financial Statements.

In 2015, the Company recorded impairment losses of $4,860 million related to various facilities, as well as goodwill for its 
Texas and Home Solar reporting units, as further described in Item 15 - Note 10, Asset Impairments and Note 11, Goodwill and 
Other Intangibles, to the Consolidated Financial Statements.

Selling, General and Administrative Expenses

Year Ended December 31, 2016
Year Ended December 31, 2015

$
$

265
159

$
$

498
546

$
$

(In millions)

61
54

$
$

17
15

$
$

254
454

$
$

1,095
1,228

Generation

Retail

Renewables

NRG Yield

Corporate

Total

Selling, general and administrative expenses decreased by $133 million for the year ended December 31, 2016 compared 

to the same period in 2015, primarily due to a decrease in advertising and the continued focus on cost management.

Development Costs

Development costs decreased by $65 million for the year ended December 31, 2016, compared to the same period in 2015, 
due to the strategic decision for a more focused development program primarily related to Renewables and the sale of EVgo in 
2016.

Loss on Sale of Assets

During the year ended December 31, 2016, the Company sold a majority interest in its EVgo business to Vision Ridge 
Partners, which resulted in a loss on sale as described in Item 15 — Note 3, Discontinued Operations, Acquisitions and Dispositions, 
to the Consolidated Financial Statements. 

Impairment Losses on Investments

For the year ended December 31, 2016, the Company recorded other-than-temporary impairment losses of $268 million, 
which is primarily due to other-than-temporary impairments on the Company's interests in Petra Nova Parish Holdings, Sherbino 
and  Community Wind  North,  as  further  described  in  Item  15  —  Note  10,  Asset  Impairments,  to  the  Consolidated  Financial 
Statements.

For the year ended December 31, 2015, the Company recorded other-than-temporary impairment losses on certain of its cost 
and equity method investments of $56 million, as further described in Item 15 — Note 10, Asset Impairments, to the Consolidated 
Financial Statements.

Loss on Debt Extinguishment

A loss on debt extinguishment of $142 million was recorded for the year ended December 31, 2016, primarily driven by the 
repurchase of NRG senior notes at a price above par value and the write-off of the unamortized debt issuance costs related to the 
replacement of the 2018 Term Loan Facility with the new 2023 Term Loan Facility.

Decrease due to the repurchases of Senior Notes at the end of 2015 and 2016

Decrease in derivative interest expense from changes in fair value of interest rate swaps

Decrease due to the redemption of outstanding bonds related to NRG Peakers Finance Company

Decrease due to the termination of Alta X and XI term loans and the related interest rate swaps in 2015

Increase due to the replacement of the 2018 Term Loan Facility with the 2023 Term Loan Facility

Increase due to the issuance of NRG Yield Inc. 3.25% Convertible Senior Notes due 2020 and NRG Yield
Operating LLC Revolving Credit Facility issued in 2015

Increase due to the issuance of NRG Yield Operating LLC 5.00% Senior Notes due 2026

Increase due to $200 million of debt issued by CVSR Holdco in August 2016

Other

Income Tax Expense

(In millions)

(40)
(19)
(8)
(6)
9

8

7

4

3
(42)

$

$

For the year ended December 31, 2016, NRG recorded an income tax expense of $5 million on a pre-tax loss of $978 million.  
For the same period in 2015, NRG recorded an income tax expense of $1,345 million on pre-tax loss of $4,986 million.  The 
effective tax rate was (0.5)% and (27.0)% for the years ended December 31, 2016 and 2015, respectively.

For the year ended December 31, 2016, NRG's overall effective tax rate was different than the statutory rate of 35% primarily 
due to recording of a valuation allowance on the federal and certain state net deferred tax assets that may not be realizable under 
a “more likely than not” measurement. In addition, a portion of the book goodwill impairment is classified as a permanent reversal 
impacting the effective tax rate.

(Loss) before income taxes
Tax at 35%
State taxes
Foreign operations
Federal and state tax credits, excluding PTCs
Valuation allowance - current period activities
Impact of non-taxable entity earnings
Book goodwill impairment
Net interest accrued on uncertain tax positions
Production tax credits
Recognition of uncertain tax benefits
Tax expense attributable to consolidated partnerships
State rate change including true-up to current period activity
Other
Income tax expense
Effective income tax rate

Year Ended December 31,

2016

2015

(In millions
except as otherwise stated)

$

$

(978)
(342)
—
10
—
398
22
—
1
(26)
2
(1)
(59)
—
5
(0.5)%

(4,986)
(1,745)
(215)
1
(5)
3,023
(10)
340
(3)
(33)
(15)
12
(7)
2
1,345
(27.0)%

$

$

The effective income tax rate may vary from period to period depending on, among other factors, the geographic and business 
mix of earnings and losses and changes in valuation allowances in accordance with ASC 740. These factors and others, including 
the Company's history of pre-tax earnings and losses, are taken into account in assessing the ability to realize deferred tax assets.

88

89

 
 
 
 
 
 
 
 
 
Income/(Loss) from Discontinued Operations, Net of Income Tax

For the year ended December 31, 2016, NRG recorded income from discontinued operations, net of income tax (benefit)/
expense of $92 million related to GenOn, as further described in Item 15 — Note 3, Discontinued Operations, Acquisitions and 
Dispositions.

For the year ended December 31, 2015, NRG recorded loss from discontinued operations, net of income tax (benefit)/expense 
of $105 million related to GenOn, as further described in Item 15 — Note 3, Discontinued Operations, Acquisitions and Dispositions.

Net loss attributable to noncontrolling interests and redeemable noncontrolling interests

Net loss attributable to noncontrolling interests and redeemable noncontrolling interests was $117 million for the year ended 
December 31, 2016, compared to $54 million for the year ended December 31, 2015.  For the years ended December 31, 2016
and 2015, the net losses attributable to noncontrolling interests primarily reflect losses allocated to tax equity investors using the 
hypothetical liquidation at book value, or HLBV, method, as well as NRG Yield, Inc.'s share of losses for the period.

 Liquidity and Capital Resources

Liquidity Position

As  of  December 31,  2017  and  2016,  NRG's  liquidity,  excluding  collateral  funds  deposited  by  counterparties,  was 

approximately $3.2 billion and $2.4 billion, respectively, comprised of the following:

Cash and cash equivalents:

NRG excluding NRG Yield
NRG Yield and subsidiaries

Restricted cash - operating
Restricted cash - reserves (a)
Total

Total credit facility availability

Total liquidity, excluding collateral funds deposited by counterparties

(a) 

Includes reserves primarily for debt service, performance obligations, and capital expenditures.

As of December 31,

2017

2016

(In millions)

$

$

843
148
71
437
1,499
1,711
3,210

$

$

621
317
56
390
1,384
989
2,373

For the year ended December 31, 2017, total liquidity, excluding collateral funds deposited by counterparties, increased by 
$837  million.    Changes  in  cash  and  cash  equivalent  balances  are  further  discussed  hereinafter  under  the  heading  Cash  Flow 
Discussion.  Cash and cash equivalents at December 31, 2017, were predominantly held in money market funds invested in treasury 
securities, treasury repurchase agreements or government agency debt.  

Management believes that the Company's liquidity position and cash flows from operations will be adequate to finance 
operating and maintenance capital expenditures, to fund dividends to NRG's common stockholders, and to fund other liquidity 
commitments.  Management continues to regularly monitor the Company's ability to finance the needs of its operating, financing 
and investing activity within the dictates of prudent balance sheet management.

On July 12, 2017, NRG announced its Transformation Plan, which is described further in Item 1 — Business.

Credit Ratings

On October 6, 2017, Moody's upgraded the NRG rating outlook to positive from stable and affirmed NRG's Ba3 Corporate 

Family Rating. 

The following table summarizes the Company's current credit ratings:

NRG Energy, Inc. 
6.25% Senior Notes, due 2022
6.25% Senior Notes, due 2024
7.25% Senior Notes, due 2026
6.625% Senior Notes, due 2027
5.75% Senior Notes, due 2028
Term Loan Facility, due 2023
NRG Yield, Inc.
5.375% NRG Yield Operating LLC Senior Notes, due 2024
5.00% NRG Yield Operating LLC Senior Notes, due 2026

S&P
BB- Stable
BB-
BB-
BB-
BB-
BB-
BB+
BB
BB
BB

Moody's
Ba3 Positive
B1
B1
B1
B1
B1
Baa3
Ba2
Ba2
Ba2

90

91

 
 
 
 
 
 
 
 
 
 
Sources of Liquidity

2023 Term Loan Facility 

The principal sources of liquidity for NRG's future operating and capital expenditures are expected to be derived from cash 
on hand, cash flows from operations, cash proceeds from future sales of assets, including sales to NRG Yield, Inc. and financing 
arrangements. As  described  in  Item 15 — Note  12, Debt  and  Capital  Leases,  to  the  Consolidated  Financial  Statements,  the 
Company's financing arrangements consist mainly of the Senior Credit Facility, the Senior Notes, the NRG Yield 2019 Convertible 
Notes, the NRG Yield 2020 Convertible Notes, the Yield Operating 2020 senior unsecured notes, the NRG Yield, Inc. revolving 
credit facility, and project-related financings.

Sale of Ownership in NRG Yield, Inc. and Renewables Platform

On February 6, 2018, NRG and Global Infrastructure Partners, or GIP, entered into a purchase and sale agreement for GIP 
to purchase NRG's ownership in NRG Yield, Inc. and NRG's renewables platform for cash of $1.375 billion, subject to certain 
adjustments. The purchase and sale agreement includes the sale of all of NRG's ownership in NRG Yield, Inc., NRG's renewable 
energy development and operations platforms and NRG's renewable energy non-ROFO backlog and pipeline. 

In connection with the transaction, the Company entered into a Consent and Indemnity Agreement with NRG Yield, Inc. 
and GIP setting forth key terms and conditions of NRG Yield, Inc.'s consent to the transaction.  As part of the Consent and Indemnity 
Agreement, NRG has agreed to indemnify GIP and NRG Yield, Inc. and its project companies for any increase in property taxes 
at the California-based solar projects resulting from the transaction.

The transaction is expected to close  in  the second half  of 2018 and is subject to various  customary closing conditions, 
approvals and consents. Upon the closing of the transaction, NRG’s Ivanpah asset will no longer be part of the NRG Yield ROFO 
assets. 

On January 24, 2017, NRG repriced the 2023 Term Loan Facility, reducing the interest rate margin by 50 basis points to 
LIBOR plus 2.25%, the LIBOR floor remains 0.75%.  As a result of the repricing, the Company realized interest savings of 
approximately $9 million in 2017 and expects approximately $60 million in interest savings over the life of the loan.

Issuance of 2028 Senior Notes 

On December 7, 2017, NRG issued $870 million of aggregate principal amount at par of 5.75% senior unsecured notes due 
2028. The 2028 Senior Notes are senior unsecured obligations of NRG and are guaranteed by certain of its subsidiaries. Interest 
is paid semi-annually beginning on July 15, 2018, until the maturity date of January 15, 2028.  The proceeds from the issuance of 
the 2028 Senior Notes were utilized to redeem the Company's 6.625% Senior Notes due 2023.

Carlsbad Project Financing

On May 26, 2017, Carlsbad Energy Holdings LLC entered into a note payable agreement with financial institutions for the 
issuance of up to $407 million of senior secured notes, that bear interest at a rate of 4.12%, and mature on October 31, 2038.  As 
of December 31, 2017, $407 million of these notes were outstanding.  

Also on May 26, 2017, Carlsbad Energy Holdings, LLC entered into a credit agreement, or the Carlsbad Financing Agreement,  
with the issuing banks, for a $194 million construction loan, that will convert to a term loan upon completion of the project.  The 
Carlsbad Financing Agreement also includes a letter of credit facility not to exceed an aggregate amount of $83 million, and a 
working capital loan facility with an aggregate principal amount not to exceed $4 million.  As of December 31, 2017, $20 million 
was outstanding under the construction loan and $29 million in letters of credit in support of the project were issued.

Sale of South Central Business

Asset Dispositions

On February 6, 2018, NRG and Cleco Energy LLC, or Cleco, entered into a purchase and sale agreement for Cleco to purchase 
NRG's South Central business for cash of $1.0 billion, subject to certain adjustments. The transaction is expected to close in the 
second half of 2018 and is subject to various customary closing conditions, approvals and consents. The South Central business 
owns and operates a 3,555 MW portfolio of generation assets in the Gulf Coast region. Upon the closing of the transaction, NRG 
will enter into a sale leaseback agreement for the Cottonwood plant through May 2025.

Sale of BETM 

On February 23, 2018, the Company entered into an agreement to sell BETM to a third party for $70 million. The transaction 

is expected to close in the second half of 2018 and is subject to various customary closing conditions, approvals and consents.

Sale of Assets to NRG Yield, Inc. 

On February 6, 2018, the Company entered into an agreement with NRG Yield, Inc. to sell 100% of the membership interests 
in Carlsbad Energy Holdings LLC, which owns the Carlsbad project,  a 527 MW natural gas fired project in Carlsbad, CA, pursuant 
to the ROFO Agreement. The purchase price for the transaction is $365 million in cash consideration, subject to customary working 
capital and other adjustments. The transaction is expected to close during the fourth quarter of 2018.

On January 24, 2018, the Company entered into an agreement with NRG Yield, Inc. to sell 100% of its ownership interest 
in Buckthorn Solar for cash consideration of $42 million, subject to other adjustments. The transaction is expected to close during 
the first quarter of 2018.

On November 1, 2017, NRG completed the sale of a 38 MW solar portfolio primarily comprised of assets from SPP funds, 
in addition to other projects developed by NRG, to NRG Yield, Inc. for cash consideration of $71 million, plus $3 million in 
working capital adjustments.

On August 1, 2017, NRG closed on its sale of the remaining 25% interest in NRG Wind TE Holdco, a portfolio of 12 wind 
projects, to NRG Yield, Inc. for total cash consideration of $44 million. The transaction also includes potential additional payments 
to NRG dependent on actual energy prices for merchant periods beginning in 2027.

On March 27, 2017, the Company sold (i) a 16% interest in the Agua Caliente solar project, representing ownership of 
approximately 46 net MW of capacity and (ii) NRG's interests in seven utility-scale solar projects located in Utah representing 
265 net MW of capacity which have reached commercial operations to NRG Yield, Inc. NRG Yield, Inc. paid cash consideration 
of $130 million, plus $1 million in working capital adjustments, and assumed non-recourse project debt of approximately $328 
million. 

During the year ended December 31, 2017, the Company received proceeds of $87 million, primarily related to the

sale of certain equipment, sale of certain Minnesota wind assets and the sale of the Crawford site.

First Lien Structure

NRG has granted first liens to certain counterparties on a substantial portion of the Company's assets, excluding assets 
acquired in the GenOn and EME (including Midwest Generation) acquisitions, assets held by NRG Yield, Inc. and NRG's assets 
that have project-level financing.  NRG uses the first lien structure to reduce the amount of cash collateral and letters of credit 
that it would otherwise be required to post from time to time to support its obligations under out-of-the-money hedge agreements 
for forward sales of power or gas used as a proxy for power.  To the extent that the underlying hedge positions for a counterparty 
are out-of-the-money to NRG, the counterparty would have claim under the first lien program.  The first lien program limits the 
volume that can be hedged, not the value of underlying out-of-the-money positions.  The first lien program does not require NRG 
to post collateral above any threshold amount of exposure.  Within the first lien structure, the Company can hedge up to 80% of 
its coal and nuclear capacity and 10% of its other assets with these counterparties for the first 60 months and then declining 
thereafter.  Net exposure to a counterparty on all trades must be positively correlated to the price of the relevant commodity for 
the first lien to be available to that counterparty.  The first lien structure is not subject to unwind or termination upon a ratings 
downgrade of a counterparty and has no stated maturity date.

The Company's first lien counterparties may have a claim on its assets to the extent market prices exceed the hedged prices.  

As of December 31, 2017, all hedges under the first liens were in-the-money on a counterparty aggregate basis.

The following table summarizes the amount of MW hedged against the Company's coal and nuclear assets and as a percentage 

relative to the Company's coal and nuclear capacity under the first lien structure as of December 31, 2017: 

Equivalent Net Sales Secured by First Lien Structure (a)
In MW
As a percentage of total net coal and nuclear capacity (b)
(a)  Equivalent Net Sales include natural gas swaps converted using a weighted average heat rate by region.
(b)  Net coal and nuclear capacity represents 80% of the Company's total coal and nuclear assets eligible under the first lien, which excludes coal assets 
acquired in the GenOn  and EME (including Midwest Generation) acquisitions, assets in NRG Yield, Inc. and NRG's assets that have project-level 
financing.

719
13%

—
—%

—
—%

2018

2019

2020

2021

—
—%

92

93

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Uses of Liquidity

Debt Service Obligations 

The Company's requirements for liquidity and capital resources, other than for operating its facilities, can generally be categorized 
by the following: (i) commercial operations activities; (ii) debt service obligations, as described more fully in Item 15 — Note 12, Debt 
and  Capital  Leases,  to  the  Consolidated  Financial  Statements;  (iii) capital  expenditures,  including  repowering  and  renewable 
development, and environmental; and (iv) allocations in connection with acquisition opportunities, debt repayments, return of capital 
and dividend payments to stockholders, as described in Item 15 — Note 15, Capital Structure, to the Consolidated Financial Statements.

Restructuring Support Agreement

As described in Note 3, Discontinued Operations, Acquisitions and Dispositions, NRG, the GenOn Entities and certain holders 
of the GenOn and GenOn Americas Generation Senior Notes entered into a Restructuring Support Agreement that provides for a 
restructuring and recapitalization of GenOn through a prearranged plan of reorganization.  Certain principal terms of the Restructuring 
Support Agreement include that NRG will provide settlement consideration to GenOn of $261.3 million, which will be paid in cash 
less any amounts owed to NRG under the intercompany secured revolving credit facility. As of June 30, 2017, GenOn owed NRG 
approximately $125 million under the intercompany secured revolving credit facility. NRG agreed to provide GenOn with a letter of 
credit facility during the pendency of the Chapter 11 Cases, to be utilized for required letters of credit in lieu of the intercompany 
secured revolving credit facility. GenOn can no longer utilize the intercompany secured revolving credit facility and, on July 27, 2017, 
the letter of credit facility was terminated, as GenOn has obtained a separate letter of credit facility with a third party financial institution. 
In addition, NRG will retain the pension liability for GenOn employees for service provided prior to the completion of the reorganization. 
GenOn’s net pension liability as of December 31, 2017, was approximately $92 million. NRG will also retain the liability for GenOn’s 
post-employment and retiree health and welfare benefits, in an amount up to $25 million, which was recorded as a liability as of 
December 31, 2017.

Commercial Operations

The Company's commercial operations activities require a significant amount of liquidity and capital resources. These liquidity 
requirements  are  primarily  driven  by:  (i) margin  and  collateral  posted  with  counterparties;  (ii)  margin  and  collateral  required  to 
participate in physical markets and commodity exchanges; (iii) timing of disbursements and receipts (i.e. buying fuel before receiving 
energy revenues); (iv) initial collateral for large structured transactions; and (v) collateral for project development.  As of December 31, 
2017, commercial operations had total cash collateral outstanding of $187 million and $515 million outstanding in letters of credit to 
third parties primarily to support its commercial activities for both wholesale and retail transactions.   As of December 31, 2017, total 
collateral held from counterparties was $38 million in cash and $17 million of letters of credit.  

 Future liquidity requirements may change based on the Company's hedging activities and structures, fuel purchases, and future 
market conditions, including forward prices for energy and fuel and market volatility. In addition, liquidity requirements are dependent 
on the Company's credit ratings and general perception of its creditworthiness.

2017 Senior Note Redemptions 

During the year ended  December 31, 2017, the Company redeemed $1.5 billion in aggregate principal of its Senior Notes for 
$1.5  billion,  which  included  accrued  interest  of  $29  million.    In  connection  with  the  redemptions,  a  $49  million  loss  on  debt 
extinguishment was recorded, which included the write-off of previously deferred financing costs of $7 million.  In addition, the 
Company expects to save approximately $55 million in annualized interest, after consideration of the issuance of the 2028 Senior Note.

Amount in millions, except rates
7.625% senior notes due 2018 
7.875% senior notes due 2021
6.625% senior notes due 2023
Total

(a) Includes payment for accrued interest.

Principal
Repurchased

Cash Paid (a) 

Average Early Redemption
Percentage

$

$

398
206
869
1,473

$

$

411
218
915
1,544

101.42%
102.63%
103.57%

Principal payments on debt and capital leases as of December 31, 2017 are due in the following periods:

Description

 Recourse Debt:
Senior notes, due 2022

Senior notes, due 2024

Senior notes, due 2026

Senior notes, due 2027

Senior notes, due 2028

Term loan facility, due 2023

Tax-exempt bonds

Subtotal Recourse Debt

 Non-Recourse Debt:
NRG Yield Operating LLC Senior Notes, due 2024

NRG Yield Operating LLC Senior Notes, due 2026

NRG Yield Inc. Convertible Senior Notes, due 2019
NRG Yield Inc. Convertible Senior Notes, due 2020

Yield LLC and Yield Operating LLC Revolving Credit Facility, due
2019

El Segundo Energy Center, due 2023

Marsh Landing, due 2023

Alta Wind I-V lease financing arrangements, due 2034 and 2035

Walnut Creek, term loans due 2023

Utah Portfolio, due 2022

Tapestry, due 2021

CVSR, due 2037

CVSR Holdco, due 2037

Alpine, due 2022

Energy Center Minneapolis, due 2025 and 2031

Viento, due 2023

NRG Yield Other

Subtotal NRG Yield debt (non-recourse to NRG) (a)

Ivanpah, due 2033 and 2038
Carlsbad Energy Project (a)

Agua Caliente, due 2037

Agua Caliente Borrower 1, due 2038
Cedro Hill, due 2029 (a)

Midwest Generation, due 2019
NRG Other Renewables (a)

NRG Other

Subtotal other non-recourse debt

Subtotal all non-recourse debt

Subtotal long-term debt

Capital Leases:

Capital leases

      Subtotal Capital Leases

Total Debt and Capital Leases

2018

2019

2020

2021
(In millions)

2022

Thereafter

Total

$

— $

— $

— $

— $

992

$

— $

—

—

—

—

19

—

19

—

—

—
—

—

48

55

40

45

12

11

26

6

8

7

16

32

306

41

—

32

3

12

103

166

9

366

672

691

4

4
695

$

$

—

—

—

—

19

—

19

—

—

345
—

55

49

57

42

47

13

11

24

6

8

11

18

36

—

—

—

—

19

—

19

—

—

—
288

—

53

60

43

49

14

11

21

6

8

11

15

77

—

—

—

—

19

—

19

—

—

—
—

—

57

62

45

52

13

129

23

7

8

11

16

32

722

656

455

42

19

33

3

12

49

24

9

191

913

932

1

1
933

$

44

1

34

3

12

—

27

9

130

786

805

—

—
805

$

45

—

35

3

12

—

27

10

132

587

606

—

—
606

—

—

—

—

19

—

1,011

—

—

—
—

—

63

65

47

55

226

—

25

9

103

11

17

33

654

47

—

35

3

13

—

83

8

733

1,000

1,250

870

1,777

465

6,095

500

350

—
—

—

130

19

709

19

—

—

627

160

—

157

81

369

3,121

854

407

649

74

90

—

320

135

992

733

1,000

1,250

870

1,872

465

7,182

500

350

345
288

55

400

318

926

267

278

162

746

194

135

208

163

579

5,914

1,073

427

818

89

151

152

647

180

189

843

1,854

2,529

5,650

3,537

9,451

11,745

16,633

—

—

5

—
$ 1,854

$

—
11,745

5
$16,638

(a)  Debt associated with the asset sales announced in February 2018.

In addition to the debt and capital leases shown in the above table, NRG had issued $733 million of letters of credit under the 

Company's $2.5 billion Revolving Credit Facility as of December 31, 2017.  

94

95

 
 
 
                        
 
 
 
Capital Expenditures

The following table and descriptions summarize the Company's capital expenditures for maintenance, environmental, and 
growth investments, for the year ended December 31, 2017, and the estimated capital expenditure and growth investments forecast 
for 2018. 

Generation

Gulf Coast
East/West (a)

Retail
Renewables
NRG Yield
Corporate

Total cash capital expenditures for the year ended 

December 31, 2017

  Funding from debt financing, net of fees
  Other investments(b)
Total capital expenditures and investments, net of financings

Estimated capital expenditures for 2018 (c)
  Funding from debt financing, net of fees
  Other investments(b)
Estimated capital expenditures for 2018, net of financings

Maintenance

Environmental

Growth
Investments

Total

(In millions)

$

$

$

$

95
22
29
5
27
15

193
—
—
193

221
—
—
221

$

$

$

$

1
24
—
—
—
—

25
—
—
25

3
—
—
3

$

$

$

$

4
321
52
506
4
6

893
(1,076)
267
84

500
(391)
86
195

$

$

$

$

100
367
81
511
31
21

1,111
(1,076)
267
302

724
(391)
86
419

(a)  Includes International
(b) Other investments include restricted cash activity and acquisitions
(c) Maintenance capital expenditures includes approximately $66 million related to announced asset sales 

•  Environmental capital expenditures — For the year ended December 31, 2017, the Company's environmental capital 
expenditures included the final payments for DSI/ESP upgrades at the Powerton facility and the Joliet gas conversion to 
satisfy CPS.

•  Growth Investments capital expenditures — For the year ended December 31, 2017, the Company's growth investment 
capital expenditures included $414 million for solar projects, $324 million for repowering projects, $93 million for wind 
projects, and $62 million for the Company's other growth projects. 

Environmental Capital Expenditures Estimate

NRG estimates that environmental capital expenditures from 2018 through 2022 required to comply with environmental 
laws will be approximately $82 million, which includes  $14 million for Midwest Generation.  These costs are primarily associated 
with the cost of complying with anticipated CCR requirements and NOx Controls.

The table below summarizes the status of NRG's coal fleet with respect to air quality controls.  Planned investments are 
either in construction or budgeted in the existing capital expenditures budget.  Changes to regulations could result in changes to 
planned installation dates.  NRG uses an integrated approach to fuels, controls and emissions markets to meet environmental 
standards.

Units

State

Control
Equipment

Install
Date

Control
Equipment

Install
Date

Control
Equipment

Install
Date

Control
Equipment

Install Date

SO2

NOx

Mercury

Particulate

Big Cajun II 1

Big Cajun II 2

Big Cajun II 3

Conemaugh 1-2

Indian River 4

Keystone 1-2

Limestone 1-2

Powerton 5

Powerton 6

W.A. Parish 5, 6, 7

W.A. Parish 8(a)

Waukegan 7

Waukegan 8

Will County 4

LA

LA

LA

PA

DE

PA

TX

IL

IL

TX

TX

IL

IL

IL

DSI

Gas
Conversion

PAL

FGD

CDS

FGD

FGD

DSI

DSI

FF co-
benefit

FGD

DSI

DSI

DSI

2015

2015

2013

LNBOFA/
SNCR
LNBOFA/
SNCR
LNBOFA/
SNCR

2005/2014

ACI

2004/2014

Gas
Conversion

2002/2014

ACI

2015

2015

2015

ESP/upgrade

1981/2015

Gas
Conversion

2015

ESP/upgrade

1983/2015

1994, 95

SCR

2014

FGD/ESP/
SCR

1994,95/
2014

ESP

1970, 1971

LNBOFA/
SCR

1999/2011

ACI/CDS/FF

2008/2011

ESP/FF

1980/2011

SCR

2003

FGD/ESP/
SCR

2011

2009

2016

2014

1988

1982

1985-86

LNBOFA

2002/2022

OFA/SNCR

2003/2012

OFA/SNCR

2002/2012

SCR

SCR

2004

2004

2002

2014

LNBOFA

2015

LNBOFA

1999

2017

LNBOFA/
SNCR

1999,2001/
2012

ACI

ACI

ACI

ACI

ACI

ACI

ACI

ACI

2003

2015

2009

2009

2015

2015

ESP

ESP

1967, 1968

1985-1986

ESP/upgrade

1973/2016

ESP/upgrade

1976/2014

FF

FF

2008

ESP/upgrade

2008

ESP/upgrade

2009

ESP/upgrade

1988

1988

1958/2002,
2014

1962/1999,
2015

1963,72/
2000

(a) Unit expected to be converted into a cogeneration facility to provide power and steam to the Petra Nova CCF.

ACI -  Activated Carbon Injection
CDS - Circulating Dry Scrubber
DSI - Dry Sorbent Injection with Trona
ESP - Electrostatic Precipitator
FGD - Flue Gas Desulfurization (wet)
FF- Fabric Filter

LNBOFA - Low NOx Burner with Overfire Air
OFA - Overfire Air
PAL - Plantwide Applicability Limit 
SCR - Selective Catalytic Reduction
SNCR - Selective Non-Catalytic Reduction

The following table summarizes the estimated environmental capital expenditures for the referenced periods by region:

2018
2019
2020
2021
2022
Total

Gulf Coast

East
(excluding
MWG)

 MWG

Total

$

$

— $
7
4
3
7
21

$

(In millions)

3
2
—
23
19
47

$

$

— $

1
7
6
—
14

$

3
10
11
32
26
82

NRG's current contracts with the Company's rural electrical customers in the Gulf Coast region allow for recovery of a 
portion of the region's capital costs once in operation, along with a capital return incurred by complying with any change in law, 
including interest over the asset life of the required expenditures.  The actual recoveries will depend, among other things, on the 
timing of the completion of the capital projects and the remaining duration of the contracts. 

96

97

 
 
 
 
 
 
 
 
Common Stock Dividends

The following table lists the dividends paid during 2017:

Cash Flow Discussion

2017 compared to 2016 

Fourth Quarter
2017

Third Quarter
2017

Second
Quarter 2017

First Quarter
2017

The following table reflects the changes in cash flows for the comparative years: 

Dividends per Common Share

$

0.030

$

0.030

$

0.030

$

0.030

On January 19, 2018, NRG declared a quarterly dividend on the Company's common stock of $0.03 per share, or $0.12 per 
share on an annualized basis, payable on February 15, 2018, to stockholders of record as of February 1, 2018.  The Company's 
common stock dividends are subject to available capital, market conditions, and compliance with associated laws and regulations.    
The Company expects that, based on current circumstances, comparable cash dividends will continue to be paid in the foreseeable 
future. 

Share Repurchases

The Company’s board of directors has authorized the repurchase of up to $1 billion of the Company's common stock, with 
the first $500 million program to begin in the first quarter of 2018.  Following completion of the initial program, and as NRG 
progresses towards the closing of the announced asset sales, the Company expects to execute the remaining $500 million of the 
$1 billion share repurchase program.

Fuel Repowerings 

Carlsbad —The Company is currently overseeing construction of the Carlsbad project, which when completed will consist 
of approximately 527 MWs of net generation capacity.   On February 6, 2018, the Company entered into an agreement with NRG 
Yield, Inc. to sell the Carlsbad project pursuant to the ROFO Agreement. The transaction is expected to close during the fourth 
quarter of 2018. 

Canal 3 — The Company is currently overseeing construction of the Canal 3 project, a dual-fueled peaking facility, which 
when completed will consist of approximately 333 MWs of net generating capacity.  In January 2018, Final Notice To Proceed 
was issued, and construction commenced with an anticipated COD by summer 2019.  Under a cooperation agreement with GenOn, 
GenOn has the right to purchase the project from NRG until March 31, 2018.

Puente  Power  Project  —  On  October  5,  2017,  the  California  Energy  Commission,  or  CEC,  the  agency  responsible  for 
permitting the Puente Power Project, issued a statement on behalf of the committee of two Commissioners overseeing the permitting 
process stating their intention to issue a proposed decision that would deny a permit for the Puente Power Project. On October 16, 
2017, NRG filed a motion to suspend the permitting proceeding for at least six months, which was granted on November 3, 2017.  
During the six month suspension period, which could be extended, NRG will evaluate the progress of a procurement process 
initiated by SCE to replace the Puente Power Project.

(In millions)

Net cash provided by operating activities

Net cash used by investing activities

Net cash used by financing activities

Net Cash Provided By Operating Activities

Year ended December 31,

2017

2016

Change

$

$

1,387
(1,066)
(485)

$

2,088
(792)
(915)

(701)
(274)
430

Changes to net cash provided by operating activities were driven by:

(In millions)

Changes in cash collateral in support of risk management activities due to changes in commodity prices

$

Other changes in working capital
Decrease in operating income adjusted for non-cash items
Increase in accounts receivable due to the timing of cash receipts

Decrease in prepaid expenses and total current assets due to reduced spending

Decrease in inventory as a result of initiatives related to the Transformation Plan

Cash provided by discontinued operations

Increase in accounts payable as a result of initiatives related to the Transformation Plan

 Net Cash Used By Investing Activities

Changes to net cash used by investing activities were driven by:

$

(478)
(284)
(172)
(92)
56

72

81

116
(701)

Change in discontinued operations cash primarily related to the sale of the Aurora, Shelby and Seward in 2016
Decrease in capital expenditures related to environmental projects at Powerton and Joliet, as well as a decrease

in maintenance capital expense in our generation businesses, offset by an increase in growth capital
expenditures related to our solar and repowering projects

Decrease in cash grants received in 2017

Increase in other investments
Increase in investments in unconsolidated affiliates related primarily to investments in the utility-scale solar

portfolio

Other

Proceeds from sale of assets

Net increase in nuclear decommissioning trust fund activity due to a decrease in purchases of securities

Proceeds from sale of emissions allowances

Decrease in cash paid for acquisitions in 2017 compared to 2016 primarily due to acquisition of assets from

SunEdison in 2016

(In millions)

$

(350)

(135)
(28)

(17)

(17)
(6)
14

30

67

168

$

(274)

98

99

 
 
 
 
 
 
Net Cash Used By Financing Activities

2016 compared to 2015 

Changes in net cash used by financing activities were driven by:

  The following table reflects the changes in cash flows for the comparative years: 

(In millions)

Net decrease in borrowings, Increase in borrowings, primarily related to Agua Caliente Borrower 1 & 2, 2038
Senior Notes and the Carlsbad project financing as well as reduced payments due to repurchases of Senior
Notes in 2016 as compared to 2017

$

Increase in cash contributions, net of distributions from noncontrolling interest primarily due to tax equity

financing

Change due to repurchase of preferred stock in 2016
Decrease in debt extinguishment costs due to fewer debt repurchases in 2017 as compared to 2016
Decrease in payment of dividends, due to the annualized dividend rate being reduced from $0.58/share to

$0.12/share in the first quarter of 2016

Change in debt issuance costs is primarily due to the refinancing of the senior credit facility and the issuance of

the 2026 and 2027 Senior Notes in 2016

Payment for affiliate receivable - GenOn

Change in discontinued operations cash  related to an increase in  long term deposits and financing fees in 2017

Other

$

303

251

226
79

38

26
(125)
(364)
(4)
430

(In millions)

Net cash provided by operating activities

Net cash used by investing activities

Net cash used by financing activities

Net Cash Provided By Operating Activities

Changes to net cash provided by operating activities were driven by:

Year ended December 31,

2016

2015

Change

$

$

2,088
(792)
(915)

$

1,349
(1,528)
(432)

739

736
(483)

Change in cash collateral in support of risk management activities

Decrease in accounts payable primarily related to lower operations and maintenance expense in 2016
Decrease in inventory primarily related to plant fuel conversions at  Joliet and Unit 2 at the Big Cajun II facility

and deactivations of the Huntley and Dunkirk facilities

Other changes in working capital driven by various timing differences

Cash used by discontinued operations

Increase in accounts receivable due to timing of receipts

Decrease in accrued interest primarily driven by redemption of Senior Notes in late 2015 and 2016
Increase in prepaid expense primarily related to timing of property tax and insurance payments that occurred in

the first half of the year, and state tax receivables

Decrease in operating income adjusted for non-cash items

 Net Cash Used By Investing Activities

Changes to net cash used by investing activities were driven by:

(In millions)

$

$

766

141

130
54
(181)
(120)
(27)

(23)
(1)
739

(In millions)

Cash provided by discontinued operations
Decrease in investments in unconsolidated affiliates in 2016 compared to 2015, primarily related to the 25%

investment in Desert Sunlight of $285 million, as well as, Petra Nova and Altenex in 2015

$

Proceeds from the sale of assets related to the majority interest sale of EVgo and the sale of real property at the

Potrero generating station in 2016

Decrease in capital expenditures, primarily related to environmental projects at the Powerton and Joliet

facilities

Insurance proceeds primarily related to the Cottonwood generation station outage in 2016

Increase in cash paid for acquisitions in 2016 compared to 2015
Decrease in cash grants received as the final Ivanpah cash grant amount was received in 2015 after resolution of

all open inquiries

Net decrease in nuclear decommissioning trust fund activity due to increase in purchases of securities in Q4

2016

Net decrease in emission allowances activity
Other

$

556

361

72

53

27
(178)

(46)

(43)
(42)
(24)
736

100

101

 
 
 
 
 
 
Net Cash Used By Financing Activities

Changes in net cash used by financing activities were driven by:

Repurchases of treasury stock in 2015

Cash provided by discontinued operations
Decrease in payment of dividends which reflects the reduction to the annualized dividend rate in 2016 from

$0.58/share to $0.12/share

Decrease in cash contributions from noncontrolling interest in 2016, primarily related to the NRG Yield, Inc.

public offering in 2015 which had proceeds of $599 million

Repurchase of preferred stock in 2016

Increase in debt extinguishment costs
Increase in debt issuance costs primarily due to the refinancing of the senior credit facility and the issuance of

the 2026 and 2027 Senior Notes

Net decrease in borrowings, offset by debt payments, which includes debt repurchases in 2016

Decrease in settlement of financing element related to acquired derivatives

Other

(In millions)

$

$

437

195

125

(803)
(226)
(121)

(68)
(23)
(8)
9
(483)

NOLs, Deferred Tax Assets and Uncertain Tax Position Implications, under ASC 740

As of December 31, 2017, the Company had domestic pre-tax book loss of $1,557 million and foreign pre-tax book income 
of $17 million.  For the year ended December 31, 2017, the Company generated an NOL of $630 million due to a current year 
taxable loss.  As of December 31, 2017, the Company has cumulative domestic federal NOL carryforwards of $2.8 billion, which 
will begin expiring in 2026 and cumulative state NOL carryforwards of $2.2 billion for financial statement purposes.  In addition, 
NRG  has  cumulative  foreign  NOL  carryforwards  of  $224  million,  which  do  not  have  an  expiration  date.   As  a  result  of  the 
Company's tax position, including the benefit of a worthless stock deduction of $9.5 billion upon GenOn emerging from bankruptcy 
and upon evaluation of the Tax Cuts and Jobs Act potential impact on taxable income and based on current forecasts, the Company 
anticipates income tax payments, primarily due to state and local jurisdictions, of up to $20 million in 2018.

The Company has recorded a long term receivable of $64 million representing refundable alternative minimum tax credits 
from the IRS, net of sequestration, which are anticipated to be received from 2019 through 2022 pursuant to the 50% annual 
limitation as enacted by the Tax Act upon repeal of corporate AMT effective January 1, 2018.

In addition to these amounts, the Company has $30 million of tax effected uncertain tax benefits for which the Company 
has recorded a non-current tax liability of $33 million until such final resolution with the related taxing authority. The $33 million
non-current tax liability for uncertain tax benefits is from positions taken on various state returns, including accrued interest.

The Company is no longer subject to U.S. federal income tax examinations for years prior to 2015.  With few exceptions, 

state and local income tax examinations are no longer open for years before 2010.

Off-Balance Sheet Arrangements

Obligations under Certain Guarantee Contracts

NRG and certain of its subsidiaries enter into guarantee arrangements in the normal course of business to facilitate commercial 
transactions with third parties. These arrangements include financial and performance guarantees, stand-by letters of credit, debt 
guarantees, surety bonds and indemnifications. See also Item 15 — Note 26, Guarantees, to the Consolidated Financial Statements 
for additional discussion.

Retained or Contingent Interests

NRG does not have any material retained or contingent interests in assets transferred to an unconsolidated entity.

Obligations Arising Out of a Variable Interest in an Unconsolidated Entity

Variable interest in Equity investments — As of December 31, 2017, NRG has several investments with an ownership interest 
percentage of 50% or less in energy and energy-related entities that are accounted for under the equity method of accounting. 
Several of these investments are variable interest entities for which NRG is not the primary beneficiary.

NRG's  pro-rata  share  of  non-recourse  debt  held  by  unconsolidated  affiliates  was  approximately  $606  million  as  of 
December 31, 2017.  This indebtedness may restrict the ability of these subsidiaries to issue dividends or distributions to NRG. 
See also Item 15 — Note 16, Investments Accounted for by the Equity Method and Variable Interest Entities, to the Consolidated 
Financial Statements for additional discussion.

102

103

 
 
 
 
 
 
Contractual Obligations and Commercial Commitments

Fair Value of Derivative Instruments

NRG has a variety of contractual obligations and other commercial commitments that represent prospective cash requirements 
in addition to the Company's capital expenditure programs. The following tables summarize NRG's contractual obligations and 
contingent  obligations  for  guarantees.  See  also  Item 15 — Note  12,  Debt  and  Capital  Leases,  Note  22,  Commitments  and 
Contingencies, and Note 26, Guarantees, to the Consolidated Financial Statements for additional discussion. 

NRG  may  enter  into  power  purchase  and  sales  contracts,  fuel  purchase  contracts  and  other  energy-related  financial 
instruments to mitigate variability in earnings due to fluctuations in spot market prices and to hedge fuel requirements at generation 
facilities or retail load obligations. In addition, in order to mitigate interest rate risk associated with the issuance of the Company's 
variable rate and fixed rate debt, NRG enters into interest rate swap agreements.

Contractual Cash Obligations

Long-term debt (including estimated interest)
Capital lease obligations (including estimated

interest)

Operating leases

Fuel purchase and transportation obligations

Fixed purchased power commitments
Pension minimum funding requirement (b)
Other postretirement benefits minimum funding 

requirement (c)
Other liabilities (d)
Total

By Remaining Maturity at December 31,

2017

Under
1 Year

1-3 Years

3-5 Years

Over
5 Years

Total (a)

2016 Total

(In millions)

$

1,521

$

3,315

$

3,913

$ 14,738

$ 23,487

$ 24,863

4

79

527

21

29

7

75

1

157

338

26

48

16

151

—

138

215

21

42

16

116

—

707

296

—

86

35

309

5

1,081

1,376

68

205

74

651

7

982

1,476

87

375

80

917

$

2,263

$

4,052

$

4,461

$ 16,171

$ 26,947

$ 28,787

(a)  Excludes $30 million non-current payable relating to NRG's uncertain tax benefits under ASC 740 as the period of payment cannot be reasonably 

estimated. Also excludes $771 million of asset retirement obligations which are discussed in Item 15 — Note 13, Asset Retirement Obligations, to the 
Consolidated Financial Statements.

(b)  These amounts represent the Company's estimated minimum pension contributions required under the Pension Protection Act of 2006. These amounts 

represent estimates that are based on assumptions that are subject to change.

(c)  These amounts represent estimates that are based on assumptions that are subject to change. The minimum required contribution for years after 2027 are 

currently not available.
Includes water right agreements, service and maintenance agreements, stadium naming rights, LTSA commitments and other contractual obligations.

(d) 

Guarantees

Letters of credit and surety bonds(a)
Asset sales guarantee obligations
Other guarantees
Total guarantees

By Remaining Maturity at December 31,

2017

Under
1 Year

1-3 Years

3-5 Years

Over
5 Years

Total

2016 Total

$

$

1,467
—
—
1,467

$

$

66
—
32
98

$

$

(In millions)

7
257
—
264

$

$

93
55
613
761

$

$

1,633
312
645
2,590

$

$

1,837
677
253
2,767

(a)  Excludes  $92  million  and  $272  million  of  letters  of  credit  issued  under  the  intercompany  revolving  credit  agreement  between  NRG  and  GenOn  as  of 

December 31, 2017 and 2016, respectively.

NRG's trading activities are subject to limits in accordance with the Company's Risk Management Policy. These contracts 
are recognized on the balance sheet at fair value and changes in the fair value of these derivative financial instruments are recognized 
in earnings.

The tables below disclose the activities that include both exchange and non-exchange traded contracts accounted for at fair 
value in accordance with ASC 820, Fair Value Measurements and Disclosures, or ASC 820. Specifically, these tables disaggregate 
realized and unrealized changes in fair value; disaggregate estimated fair values at December 31, 2017, based on their level within 
the fair value hierarchy defined in ASC 820; and indicate the maturities of contracts at December 31, 2017.  For a full discussion 
of the Company's valuation methodology of its contracts, see Derivative Fair Value Measurements in Item 15 — Note 4, Fair 
Value of Financial Instruments, to the Consolidated Financial Statements.

Derivative Activity (Losses)/Gains
Fair value of contracts as of December 31, 2016
Contracts realized or otherwise settled during the period
Derivatives reclassified to held for sale
Changes in fair value
Fair value of contracts as of December 31, 2017

(In millions)
$

(128)
37
(14)
151
46

Fair Value of Contracts as of December 31, 2017

Maturity

$

Fair value hierarchy (Losses)/Gains

1 Year or Less

Greater Than 1
Year to 3 Years

Greater Than 3
Years to 5
Years

(In millions)

Greater Than
5 Years

Total Fair
Value

Level 1
Level 2
Level 3
Total

$

$

(22) $
98
(5)
71

$

(41) $
49
(6)
2

$

(3) $
—
(6)
(9) $

— $
(3)
(15)
(18) $

(66)
144
(32)
46

The Company has elected to disclose derivative assets and liabilities on a trade-by-trade basis and does not offset amounts 
at the counterparty master agreement level. Also, collateral received or posted on the Company's derivative assets or liabilities are 
recorded on a separate line item on the balance sheet. Consequently, the magnitude of the changes in individual current and non-
current derivative assets or liabilities is higher than the underlying credit and market risk of the Company's portfolio. As discussed 
in Item 7A — Quantitative and Qualitative Disclosures About Market Risk, Commodity Price Risk, NRG measures the sensitivity 
of the Company's portfolio to potential changes in market prices using VaR, a statistical model which attempts to predict risk of 
loss based on market price and volatility. NRG's risk management policy places a limit on one-day holding period VaR, which 
limits  the  Company's  net  open  position.   As  the  Company's  trade-by-trade  derivative  accounting  results  in  a  gross-up  of  the 
Company's derivative assets and liabilities, the net derivative assets and liability position is a better indicator of NRG's hedging 
activity.  As of December 31, 2017, NRG's net derivative asset was $46 million, an increase to total fair value of $174 million as 
compared to December 31, 2016.  This increase was primarily driven by gains in fair value and roll off trades that were settled 
during the period, partially offset by derivatives reclassified to held for sale.

Based on a sensitivity analysis using simplified assumptions, the impact of a $0.50 per MMBtu increase in natural gas prices 
across the term of the derivative contracts would result in an increase of approximately $64 million in the net value of derivatives 
as of December 31, 2017.

The impact of a $0.50 per MMBtu decrease in natural gas prices across the term of the derivative contracts would result 

in a decrease of approximately $67 million in the net value of derivatives as of December 31, 2017.

104

105

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Critical Accounting Policies and Estimates

Derivative Instruments

NRG's discussion and analysis of the financial condition and results of operations are based upon the Consolidated Financial 
Statements,  which  have  been  prepared  in  accordance  with GAAP.  The  preparation  of  these  financial  statements  and  related 
disclosures in compliance with GAAP requires the application of appropriate technical accounting rules and guidance as well as 
the  use  of  estimates  and  judgments  that  affect  the  reported  amounts  of  assets,  liabilities,  revenues  and  expenses,  and  related 
disclosures  of  contingent  assets  and  liabilities. The  application  of  these  policies  involves  judgments  regarding  future  events, 
including the likelihood of success of particular projects, legal and regulatory challenges, and the fair value of certain assets and 
liabilities. These judgments, in and of themselves, could materially affect the financial statements and disclosures based on varying 
assumptions, which may be appropriate to use. In addition, the financial and operating environment may also have a significant 
effect, not only on the operation of the business, but on the results reported through the application of accounting measures used 
in preparing the financial statements and related disclosures, even if the nature of the accounting policies have not changed.

On  an  ongoing  basis,  NRG  evaluates  these  estimates,  utilizing  historic  experience,  consultation  with  experts  and  other 
methods the Company considers reasonable. In any event, actual results may differ substantially from the Company's estimates. 
Any effects on the Company's business, financial position or results of operations resulting from revisions to these estimates are 
recorded in the period in which the information that gives rise to the revision becomes known.

NRG's significant accounting policies are summarized in Item 15 — Note 2, Summary of Significant Accounting Policies, 
to the consolidated financial statements. The Company identifies its most critical accounting policies as those that are the most 
pervasive and important to the portrayal of the Company's financial position and results of operations, and that require the most 
difficult, subjective and/or complex judgments by management regarding estimates about matters that are inherently uncertain.

Accounting Policy
Derivative Instruments

Income Taxes and Valuation Allowance for Deferred Tax Assets

Impairment of Long-Lived Assets and Investments

Goodwill and Other Intangible Assets

Contingencies

Judgments/Uncertainties Affecting Application
Assumptions used in valuation techniques
Assumptions used in forecasting generation
Assumptions used in forecasting borrowings
Market maturity and economic conditions
Contract interpretation
Market conditions in the energy industry, especially the
effects of price volatility on contractual commitments
Ability to be sustained upon audit examination of taxing
authorities
Interpret existing tax statute and regulations upon
application to transactions
Ability to utilize tax benefits through carry backs to prior
periods and carry forwards to future periods
Recoverability of investment through future operations
Regulatory and political environments and requirements
Estimated useful lives of assets
Environmental obligations and operational limitations
Estimates of future cash flows
Estimates of fair value
Judgment about impairment triggering events
Estimated useful lives for finite-lived intangible assets
Judgment about impairment triggering events
Estimates of reporting unit's fair value
Fair value estimate of intangible assets acquired in
business combinations
Estimated financial impact of event(s)
Judgment about likelihood of event(s) occurring
Regulatory and political environments and requirements

The Company follows the guidance of ASC 815 to account for derivative instruments. ASC 815 requires the Company to 
mark-to-market all derivative instruments on the balance sheet and recognize changes in the fair value of non-hedge derivative 
instruments immediately in earnings.  In certain cases, NRG may apply hedge accounting to the Company's derivative instruments. 
The criteria used to determine if hedge accounting treatment is appropriate are: (i) the designation of the hedge to an underlying 
exposure; (ii) whether the overall risk is being reduced; and (iii) if there is a correlation between the changes in fair value of the 
derivative instrument and the underlying hedged item.  Changes in the fair value of derivatives instruments accounted for as hedges 
are deferred and recorded as a component of OCI and subsequently recognized in earnings when the hedged transactions occur.

For purposes of measuring the fair value of derivative instruments, NRG uses quoted exchange prices and broker quotes.  
When external prices are not available, NRG uses internal models to determine the fair value.  These internal models include 
assumptions of the future prices of energy commodities based on the specific market in which the energy commodity is being 
purchased or sold, using externally available forward market pricing curves for all periods possible under the pricing model.  In 
order  to  qualify  the  derivative  instruments  for  hedged  transactions,  NRG  estimates  the  forecasted  generation  and  forecasted 
borrowings for interest rate swaps occurring within a specified time period. Judgments related to the probability of forecasted 
generation occurring are based on available baseload capacity, internal forecasts of sales and generation, and historical physical 
delivery on similar contracts.  Judgments related to the probability of forecasted borrowings are based on the estimated timing of 
project construction, which can vary based on various factors.  The probability that hedged forecasted generation and forecasted 
borrowings will occur by the end of a specified time period could change the results of operations by requiring amounts currently 
classified in OCI to be reclassified into earnings, creating increased variability in the Company's earnings.  These estimations are 
considered to be critical accounting estimates.

Certain derivative instruments that meet the criteria for derivative accounting treatment also qualify for a scope exception 
to derivative accounting, as they are considered to be NPNS.  The availability of this exception is based upon the assumption that 
NRG has the ability and it is probable to deliver or take delivery of the underlying item.  These assumptions are based on available 
baseload capacity, internal forecasts of sales and generation and historical physical delivery on contracts.  Derivatives that are 
considered to be NPNS are exempt from derivative accounting treatment and are accounted for under accrual accounting.  If it is 
determined that a transaction designated as NPNS no longer meets the scope exception due to changes in estimates, the related 
contract would be recorded on the balance sheet at fair value combined with the immediate recognition through earnings.

Income Taxes and Valuation Allowance for Deferred Tax Assets

As of December 31, 2017, NRG had a valuation allowance of $1.8 billion. This amount is comprised of domestic federal 
net deferred tax assets of approximately $1.5 billion, domestic state net deferred tax assets of $267 million, foreign net operating 
loss carryforwards of $66 million, and foreign capital loss carryforwards of approximately $1 million.  The Company believes it 
is more likely than not that the results of future operations will not generate sufficient taxable income which includes the future 
reversal of existing taxable temporary differences to realize deferred tax assets, requiring a valuation allowance to be recorded.  
In December 2017, the SEC staff issued Staff Accounting Bulletin No. 118, which addresses how a company may recognize 
provisional amounts for the effect of the changes related to the Tax Act. Consistent with that guidance, the Company recognized 
provisional amounts based upon our interpretation of the tax laws and estimates which require significant judgments.

NRG continues to be under audit for multiple years by taxing authorities in other jurisdictions.  Considerable judgment is 
required to determine the tax treatment of a particular item that involves interpretations of complex tax laws including the impact 
of the Tax Cuts and Jobs Act effective December 22, 2017.  NRG is subject to examination by taxing authorities for income tax 
returns filed in the U.S. federal jurisdiction and various state and foreign jurisdictions including operations located in Australia.  

The Company is no longer subject to U.S. federal income tax examinations for years prior to 2015.  With few exceptions, 

state and local income tax examinations are no longer open for years before 2010.

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Evaluation of Assets for Impairment and Other-Than-Temporary Decline in Value

The Company also recorded the following impairments in 2017 based on specific triggering events that occurred:

In accordance with ASC 360, Property, Plant, and Equipment, or ASC 360, NRG evaluates property, plant and equipment 
and certain intangible assets for impairment whenever indicators of impairment exist. Examples of such indicators or events are:

• 

• 

Significant decrease in the market price of a long-lived asset;

Significant adverse change in the manner an asset is being used or its physical condition;

•  Adverse business climate;

•  Accumulation of costs significantly in excess of the amount originally expected for the construction or acquisition of an 

asset;

•  Current period loss combined with a history of losses or the projection of future losses; and

•  Change in the Company's intent about an asset from an intent to hold to a greater than 50% likelihood that an asset will 

be sold or disposed of before the end of its previously estimated useful life.

Recoverability of assets to be held and used is measured by a comparison of the carrying amount of the assets to the future 
net cash flows expected to be generated by the asset, through considering project specific assumptions for long-term power pool 
prices, escalated future project operating costs and expected plant operations. If such assets are considered to be impaired, the 
impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the 
assets by factoring in the probability weighting of different courses of action available to the Company. Generally, fair value will 
be determined using valuation techniques such as the present value of expected future cash flows. NRG uses its best estimates in 
making these evaluations and considers various factors, including forward price curves for energy, fuel costs and operating costs. 
However, actual future market prices and project costs could vary from the assumptions used in the Company's estimates, and the 
impact of such variations could be material.

For assets to be held and used, if the Company determines that the undiscounted cash flows from the asset are less than the 
carrying amount of the asset, NRG must estimate fair value to determine the amount of any impairment loss. Assets held-for-sale 
are reported at the lower of the carrying amount or fair value less the cost to sell. The estimation of fair value under ASC 360, 
whether in conjunction with an asset to be held and used or with an asset held-for-sale, and the evaluation of asset impairment 
are, by their nature, subjective. NRG considers quoted market prices in active markets to the extent they are available. In the 
absence of such information, the Company may consider prices of similar assets, consult with brokers, or employ other valuation 
techniques. NRG will also discount the estimated future cash flows associated with the asset using a single interest rate representative 
of the risk involved with such an investment or employ an expected present value method that probability-weights a range of 
possible outcomes. The use of these methods involves the same inherent uncertainty of future cash flows as previously discussed 
with respect to undiscounted cash flows. Actual future market prices and project costs could vary from those used in the Company's 
estimates, and the impact of such variations could be material.  

Annually,  during  the  fourth  quarter,  the  Company  revises  its  views  of  power  and  fuel  prices  including  the  Company's 
fundamental  view  for  long  term  prices,  forecasted  generation  and  operating  and  capital  expenditures,  in  connection  with  the 
preparation of its annual budget.  Changes to the Company’s views of long term power and fuel prices impacted the Company’s 
projections of profitability, based on management's estimate of supply and demand within the sub-markets for each plant and the 
physical and economic characteristics of each plant. During the fourth quarter of 2017, the Company completed its annual budget 
and revised its view of long-term power and fuel prices and the corresponding impact on estimated cash flows associated with its 
long-lived assets. The most significant impact was a decrease in the Company’s long-term view of natural gas prices which resulted 
in a reduction to long-term power prices and had a negative impact on the Company’s coal, nuclear and renewable facilities. 

As a result, the following long-lived asset impairments were recorded during the fourth quarter of 2017, as further described 

in Item 15 —Note 10, Asset Impairments, to the consolidated financial statements:

•  South Texas Project, or STP - The Company recognized an impairment loss of $1,248 million related to its interest in 

STP as a result of the decrease in the Company's view of long-term power prices in ERCOT.

•  Indian River - The Company recognized an impairment loss of $36 million for Indian River as a result of the decrease 

in the Company's view of long-term power prices in PJM.

•  Keystone and Conemaugh - The Company recognized impairment losses of $35 million for Keystone and $35 million 

for Conemaugh as a result of the decrease in the Company's view of long-term power prices in PJM.

•  Wind Facilities - The Company recorded impairment losses of $110 million, $26 million and $4 million for Langford, 
Elbow Creek and Forward, respectively, as a result of the decrease in the Company's view of long-term merchant power prices 
in ERCOT and PJM. While Elbow Creek and Forward have contracts to sell power, the significant decrease in estimated power 
prices had an impact on cash flows in post-contract periods.

•  Bacliff Project - On June 16, 2017, NRG Texas Power LLC provided notice to BTEC New Albany, LLC that it was 
exercising its right to terminate the Amended and Restated Membership Interest Purchase Agreement, or MIPA, due to the 
Bacliff Project, a new peaking facility at the former P.H. Robinson Electric Generating Station, not achieving commercial 
completion by the contractual expiration date of May 31, 2017.  As a result of the MIPA termination, the Company recorded 
an impairment loss of $41 million to reduce the carrying amount of the related construction in progress to zero during the second 
quarter of 2017.

•  Other Impairments - During the second, third and fourth quarters of 2017, the Company recorded impairment losses 
of approximately $22 million, $14 million and $15 million, respectively, in connection with the Company's Renewables business.  
These impairment losses were primarily to record the value of certain long-lived assets, including property, plant and equipment 
and intangible assets, at fair market value at acquisition date or in connection with an impairment indicator. 

NRG is also required to evaluate its equity method and cost method investments to determine whether or not they are impaired 
in accordance with ASC 323, Investments - Equity Method and Joint Ventures, or ASC 323.  The standard for determining whether 
an impairment must be recorded under ASC 323 is whether a decline in the value is considered an other-than-temporary decline 
in value.  The evaluation and measurement of impairments under ASC 323 involves the same uncertainties as described for long-
lived assets that the Company owns directly and accounts for in accordance with ASC 360.  Similarly, the estimates that NRG 
makes with respect to its equity and cost-method investments are subjective, and the impact of variations in these estimates could 
be material.  Additionally, if the projects in which the Company holds these investments recognize an impairment under the 
provisions of ASC 360, NRG would record its proportionate share of that impairment loss and would evaluate its investment for 
an other-than-temporary decline in value under ASC 323.  During the year ended December 31, 2016, the Company recorded 
impairment losses on its equity method and cost method investments of $79 million due to other-than-temporary declines in value, 
including the following:

During the fourth quarter of 2017, in connection with the preparation of the annual budget, management revised its view 
of oil production expectations with respect to Petra Nova Parish Holdings. As a result, the Company reviewed its 50% interest 
in Petra Nova Parish Holdings for impairment utilizing the other-than-temporary impairment model. In determining fair value, 
the Company utilized an income approach and considered project specific assumptions for the future project cash flows. The 
carrying amount of the Company's equity method investment exceeded the fair value of the investment and the Company 
concluded that the decline is considered to be other-than-temporary. As a result, the Company measured the impairment loss 
as the difference between the carrying amount and the fair value of the investment and recorded an impairment loss of $69 
million.

Goodwill and Other Intangible Assets 

At December 31, 2017, NRG reported goodwill of $539 million, consisting of $165 million associated with the acquisition 

of EME, $341 million for retail business acquisitions, and $33 million associated with other business acquisitions. 

The Company applies ASC 805, Business Combinations, or ASC 805, and ASC 350, to account for its goodwill and intangible 
assets.  Under these standards, the Company amortizes all finite-lived intangible assets over their respective estimated weighted-
average useful lives, while goodwill has an indefinite life and is not amortized.  Goodwill and all intangible assets not subject to 
amortization are tested for impairments at least annually, or more frequently whenever an event or change in circumstances occurs 
that would more likely than not reduce the fair value of a reporting unit below its carrying amount.  The Company tests goodwill 
for impairment at the reporting unit level, which is identified by assessing whether the components of the Company's operating 
segments constitute businesses for which discrete financial information is available and whether segment management regularly 
reviews the operating results of those components.  The Company performs the annual goodwill impairment assessment as of 
December 31 or when events or changes in circumstances indicate that the carrying value may not be recoverable. The Company 
first assesses qualitative factors to determine whether it is more likely than not that impairment has occurred.  In the absence of 
sufficient qualitative factors, the Company performs a quantitative assessment by determining the fair value of the reporting unit 
and comparing to its book value. If it is determined that the fair value of a reporting unit is below its carrying amount, where 
necessary, the Company's goodwill will be impaired at that time.

The Company performed its qualitative assessment of macroeconomic, industry and market events and circumstances, and 
the overall financial performance of the NRG Business Solutions (NRG Curtailment Solutions) and Retail Mass reporting units.  
The Company determined it was not more likely than not that the fair value of the goodwill attributed to these reporting units were 
less than their carrying amount and accordingly, no impairment existed for the year ended December 31, 2017.

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The Company performed a quantitative assessment for the reporting units in the following table.  The Company determined 
the fair value of these reporting units using primarily an income approach.  Under the income approach, the Company estimated 
the fair value of the reporting units' invested capital exceeds its carrying value and, as such, the Company concluded that goodwill 
associated with the reporting units in the following table is not impaired as of December 31, 2017: 

Recent Accounting Developments

See Item 15 — Note 2,  Summary of Significant Accounting Policies, to the consolidated financial statements for a discussion 

of recent accounting developments.

Reporting Unit

Midwest Generation (Generation Segment)

Texas Non-Commodity - excluding Goal Zero (Retail Segment)

Goal Zero (Retail Segment)

% Fair Value Over
Carrying Value

133%

325%

141%

The Company believes the methodology and assumptions used in its quantitative assessment are consistent with the views 

of market participants.  Significant inputs to the determination of fair value were as follows:

•  The Company applied a discounted cash flow methodology to the long-term budgets for all of the plants in the region. 
The significant assumptions used to derive the long-term budgets used in the income approach are affected by the following 
key inputs:  

  The Company's views of power and fuel prices consider market prices for the first five-year period and the 
Company's fundamental view for the longer term, which reflect the Company's long-term view of the price of 
natural gas.  The Company's fundamental view for the longer term reflects the implied power price and heat rate 
that would support new build of a combined cycle gas plant. The price of natural gas plays an important role in 
setting the price of electricity in many of the regions where NRG operates power plants.  Hedging is included 
to the extent of contracts already in place; 

  The  Company's  estimate  of  generation,  fuel  costs,  capital  expenditure  requirements  and  the  existing  and 

anticipated impact of environmental regulations; 

  The Company's fundamental view for the longer term, cash flows for the plants in the region were included in 

the fair value calculation through the end of each plants' estimated useful life; and

Projected generation and resulting energy gross margin in the long-term budgets is based on an hourly dispatch 
that simulates dispatch of each unit into the power market.  The dispatch simulation is based on power prices, 
fuel prices, and the physical and economic characteristics of each plant. 

•  The Company applied a discounted cash flow methodology to the long-term budgets for the Texas Non-Commodity and 
Goal Zero reporting units.  The significant assumptions used to derive the long-term budgets used in the income approach 
are affected by the following key inputs: a terminal value utilizing assumed growth rates and discount rates that reflect 
the inherent cash flow risk for each reporting unit.

During the fourth quarter of 2017, the Company concluded that BETM was held for sale in connection with board approval 
and advanced negotiations to sell the business.  Accordingly, the Company recorded the assets and liabilities at fair market value 
as of December 31, 2017, which resulted in an impairment loss of $90 million to record BETM's goodwill at fair market value.

During the fourth quarter of 2017, NRG sold its interests in certain SPP projects to NRG Yield.  The goodwill recorded 
during the SPP acquisition was related primarily to its development pipeline, which was not sold to NRG Yield.  As the Company 
does not expect to separately develop these projects and accordingly, has no cash flow stream associated with the goodwill, an 
impairment loss of $12 million was recorded to reduce the value to zero as of December 31, 2017.

Fair value determinations require considerable judgment and are sensitive to changes in underlying assumptions and factors.  
As a result, there can be no assurance that the estimates and assumptions made for purposes of the annual goodwill impairment 
test will prove to be accurate predictions of the future. 

Contingencies

NRG records reserves for estimated losses from contingencies when information available indicates that a loss is probable 
and the amount of the loss, or range of loss, can be reasonably estimated. Gain contingencies are not recorded until management 
determines it is certain that the future event will become or does become a reality.  Such determinations are subject to interpretations 
of current facts and circumstances, forecasts of future events, and estimates of the financial impacts of such events.  NRG describes 
in detail its contingencies in Item 15 — Note 22, Commitments and Contingencies, to the consolidated financial statements.

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Item 7A — Quantitative and Qualitative Disclosures About Market Risk 

Interest Rate Risk

NRG is exposed to several market risks in the Company's normal business activities.  Market risk is the potential loss that 
may result from market changes associated with the Company's merchant power generation or with an existing or forecasted 
financial or commodity transaction.  The types of market risks the Company is exposed to are commodity price risk, interest rate 
risk, liquidity risk, credit risk and currency exchange risk.  In order to manage these risks, the Company uses various fixed-price 
forward purchase and sales contracts, futures and option contracts traded on NYMEX, and swaps and options traded in the over-
the-counter financial markets to:

•  Manage and hedge fixed-price purchase and sales commitments;

•  Manage and hedge exposure to variable rate debt obligations;

•  Reduce exposure to the volatility of cash market prices, and

•  Hedge fuel requirements for the Company's generating facilities.

Commodity Price Risk

Commodity price risks result from exposures to changes in spot prices, forward prices, volatilities, and correlations between 
various commodities, such as natural gas, electricity, coal, oil, and emissions credits.  NRG manages the commodity price risk of 
the Company's merchant generation operations and load serving obligations by entering into various derivative or non-derivative 
instruments  to  hedge  the  variability  in  future  cash  flows  from  forecasted  sales  and  purchases  of  electricity  and  fuel.   These 
instruments include forwards, futures, swaps, and option contracts traded on various exchanges, such as NYMEX and ICE, as 
well as over-the-counter markets.  The portion of forecasted transactions hedged may vary based upon management's assessment 
of market, weather, operation and other factors. 

While some of the contracts the Company uses to manage risk represent commodities or instruments for which prices are 
available from external sources, other commodities and certain contracts are not actively traded and are valued using other pricing 
sources and modeling techniques to determine expected future market prices, contract quantities, or both.  NRG uses the Company's 
best estimates to determine the fair value of those derivative contracts.  However, it is likely that future market prices could vary 
from those used in recording mark-to-market derivative instrument valuation and such variations could be material.

NRG measures the risk of the Company's portfolio using several analytical methods, including sensitivity tests, scenario 
tests, stress tests, position reports, and VaR.  NRG uses a Monte Carlo simulation based VaR model to estimate the potential loss 
in the fair value of the Company's energy assets and liabilities, which includes generation assets, load obligations, and bilateral 
physical and financial transactions.  The key assumptions for the Company's VaR model include: (i) lognormal distribution of 
prices; (ii) one-day holding period; (iii) 95% confidence interval; (iv) rolling 36-month forward looking period; and (v) market 
implied volatilities and historical price correlations.

 As of December 31, 2017, the VaR for NRG's commodity portfolio, including generation assets, load obligations and bilateral 

physical and financial transactions calculated using the VaR model was $46 million.

The following table summarizes average, maximum and minimum VaR for NRG for the years ended December 31, 2017

and 2016:

(In millions)

VaR as of December 31,
For the year ended December 31,

Average
Maximum
Minimum

$

$

2017

2016

$

$

46

51
66
40

41

53
72
32

Due  to  the  inherent  limitations  of  statistical  measures  such  as VaR,  the  evolving  nature  of  the  competitive  markets  for 
electricity and related derivatives, and the seasonality of changes in market prices, the VaR calculation may not capture the full 
extent of commodity price exposure.  As a result, actual changes in the fair value of mark-to-market energy assets and liabilities 
could differ from the calculated VaR, and such changes could have a material impact on the Company's financial results.

In order to provide additional information, the Company also uses VaR to estimate the potential loss of derivative financial 
instruments that are subject to mark-to-market accounting. These derivative instruments include transactions that were entered 
into  for  both  asset  management  and  trading  purposes. The VaR  for  the  derivative  financial  instruments  calculated  using  the 
diversified VaR model for the entire term of these instruments entered into for both asset management and trading was $30 million
as of December 31, 2017, primarily driven by asset-backed transactions.

NRG is exposed to fluctuations in interest rates through the Company's issuance of fixed rate and variable rate debt.  Exposures 
to interest rate fluctuations may be mitigated by entering into derivative instruments known as interest rate swaps, caps, collars 
and put or call options. These contracts reduce exposure to interest rate volatility and result in primarily fixed rate debt obligations 
when  taking  into  account  the  combination  of  the  variable  rate  debt  and  the  interest  rate  derivative  instrument.  NRG's  risk 
management policies allow the Company to reduce interest rate exposure from variable rate debt obligations.

In addition to those discussed above, the Company's project subsidiaries enter into interest rate swaps, intended to hedge 
the risks associated with interest rates on non-recourse project level debt. See Item 15 — Note 12, Debt and Capital Leases, to 
the Consolidated Financial Statements, for more information about interest rate swaps of the Company's project subsidiaries. 

If all of the above swaps had been discontinued on December 31, 2017, the Company would have owed the counterparties 
$11  million.  Based  on  the  investment  grade  rating  of  the  counterparties,  NRG  believes  its  exposure  to  credit  risk  due  to 
nonperformance by counterparties to its hedge contracts to be insignificant.

NRG has both long and short-term debt instruments that subject the Company to the risk of loss associated with movements 
in market interest rates. As of December 31, 2017, a 1% change in interest rates would result in a $14.2 million change in interest 
expense on a rolling twelve month basis.

As of December 31, 2017, the Company's debt fair value was $16.9 billion and carrying value was $16.6 billion. NRG 
estimates that a 1% decrease in market interest rates would have increased the fair value of the Company's long-term debt by $989 
million.

Liquidity Risk

Liquidity risk arises from the general funding needs of the Company's activities and in the management of the Company's 
assets and liabilities. The Company is currently exposed to additional collateral posting if natural gas prices decline primarily due 
to the long natural gas equivalent position at various exchanges used to hedge NRG's retail supply load obligations.

Based on a sensitivity analysis for power and gas positions under marginable contracts, a $0.50 per MMBtu change in natural 
gas prices across the term of the marginable contracts would cause a change in margin collateral posted of approximately $120 
million as of December 31, 2017, and a 1.00 MMBtu/MWh change in heat rates for heat rate positions would result in a change 
in margin collateral posted of approximately $64 million as of December 31, 2017. This analysis uses simplified assumptions and 
is calculated based on portfolio composition and margin-related contract provisions as of December 31, 2017.

Counterparty Credit Risk

Credit risk relates to the risk of loss resulting from non-performance or non-payment by counterparties pursuant to the terms 
of  their  contractual  obligations.  The  Company  monitors  and  manages  credit  risk  through  credit  policies  that  include:  (i) an 
established credit approval process; (ii) a daily monitoring of counterparties' credit limits; (iii) the use of credit mitigation measures 
such as margin, collateral, prepayment arrangements, or volumetric limits; (iv) the use of payment netting agreements; and (v) the 
use of master netting agreements that allow for the netting of positive and negative exposures of various contracts associated with 
a single counterparty. Risks surrounding counterparty performance and credit could ultimately impact the amount and timing of 
expected cash flows. The Company seeks to mitigate counterparty risk by having a diversified portfolio of counterparties. The 
Company also has credit protection within various agreements to call on additional collateral support if and when necessary. Cash 
margin is collected and held at the Company to cover the credit risk of the counterparty until positions settle.

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As of December 31, 2017, aggregate counterparty credit exposure to a significant portion of the Company's counterparties 
totaled $220 million, of which the Company held collateral (cash and letters of credit) against those positions of $30 million
resulting in a net exposure of $196 million. Approximately 73% of the Company's exposure before collateral is expected to roll 
off by the end of 2019. The following table highlights the net counterparty credit exposure by industry sector and by counterparty 
credit quality. Net counterparty credit exposure is defined as the aggregate net asset position for NRG with counterparties where 
netting  is  permitted  under  the  enabling  agreement  and  includes  all  cash  flow,  mark-to-market,  NPNS,  and  non-derivative 
transactions. As of December 31, 2017, the aggregate credit exposure is shown net of collateral held, and includes amounts net 
of receivables or payables.

Category
Financial institutions
Utilities, energy merchants, marketers and other

Total

Category
Investment grade
Non-Investment grade/Non-Rated

Total

Net Exposure (a) (b)
(% of Total)

14%
86
100%

Net Exposure (a) (b)
(% of Total)

69%
31
100%

(a)  Counterparty credit exposure excludes uranium and coal transportation contracts because of the unavailability of market prices.
(b)  The figures in the tables above exclude potential counterparty credit exposure related to RTOs, ISOs, registered commodity exchanges and certain long 

term contracts.

The Company has credit exposure to certain wholesale counterparties, each of which represent more than 10% of the total 
net exposure discussed above and the aggregate credit exposure to such counterparties was $37 million as of December 31, 2017.  
Changes in hedge positions and market prices will affect credit exposure and counterparty concentration. Given the credit quality, 
diversification and term of the exposure in the portfolio, the Company does not anticipate a material impact on its financial position 
or results of operations from nonperformance by any counterparty. 

RTOs and ISOs

The Company participates in the organized markets of CAISO, ERCOT, ISO-NE, MISO, NYISO and PJM, known as RTOs 
or ISOs. Trading in these markets is approved by FERC, or in the case of ERCOT, approved by the PUCT and include credit 
policies that, under certain circumstances, require that losses arising from the default of one member on spot market transactions 
be shared by the remaining participants. As a result, the counterparty credit risk to these markets is limited to NRG’s applicable 
share of the overall market and are excluded from the above exposures.  

Long Term Contracts

Counterparty credit exposure described above excludes credit risk exposure under certain long term contracts, including 
California tolling agreements, Gulf Coast load obligations, and wind and solar PPAs. As external sources or observable market 
quotes are not available to estimate such exposure, the Company values these contracts based on various techniques including but 
not limited to internal models based on a fundamental analysis of the market and extrapolation of observable market data with 
similar characteristics. Based on these valuation techniques, as of December 31, 2017, aggregate credit risk exposure managed 
by NRG to these counterparties was approximately $4.1 billion, of which $2.6 billion related to assets of NRG Yield, Inc., for the 
next five years. This amount excludes potential credit exposures for projects with long term PPAs that have not reached commercial 
operations. The majority of these power contracts are with utilities or public power entities with strong credit quality and public 
utility commission or other regulatory support. However, such regulated utility counterparties can be impacted by changes in 
government regulations, which NRG is unable to predict. 

Retail Customer Credit Risk 

NRG is exposed to retail credit risk through its retail electricity providers, which serve C&I customers and the Mass market. 
Retail credit risk results in losses when a customer fails to pay for services rendered.  The losses could be incurred from nonpayment 
of customer accounts receivable and any in-the-money forward value.  NRG manages retail credit risk through the use of established 
credit policies that include monitoring of the portfolio, and the use of credit mitigation measures such as deposits or prepayment 
arrangements. 

As of December 31, 2017, the Company's retail customer credit exposure to C&I and Mass customers was diversified across 
many customers and various industries, as well as government entities. The Company is also subject to risk with respect to its 
residential solar customers. The Company's bad debt expense resulting from credit risk was $68 million, $48 million, and $64 
million  for  the  years  ending  December  31,  2017,  2016,  and  2015,  respectively.  Current  economic  conditions  may  affect  the 
Company's customers' ability to pay bills in a timely manner, which could increase customer delinquencies and may lead to an 
increase in bad debt expense.

Credit Risk Related Contingent Features

Certain of the Company's hedging agreements contain provisions that require the Company to post additional collateral if 
the counterparty determines that there has been deterioration in credit quality, generally termed "adequate assurance" under the 
agreements, or require the Company to post additional collateral if there were a one notch downgrade in the Company's credit 
rating.  The collateral required for contracts that have adequate assurance clauses that are in a net liability position as of December 31, 
2017, was $25 million.  The collateral required for contracts with credit rating contingent features that are in a net liability position 
as of December 31, 2017, was $7 million.  The Company is also a party to certain marginable agreements under which it has a 
net liability position, but the counterparty has not called for the collateral due, which is approximately $4 million as of December 31, 
2017.

Exchange Traded Transactions

Currency Exchange Risk

The Company enters into commodity transactions on registered exchanges, notably ICE and NYMEX. These clearinghouses 
act as the counterparty and transactions are subject to extensive collateral and margining requirements. As a result, these commodity 
transactions have limited counterparty credit risk.

NRG's foreign earnings and investments may be subject to foreign currency exchange risk, which NRG generally does not 
hedge.  As these earnings and investments are not material to NRG's consolidated results, the Company's foreign currency exposure 
is limited.

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Item 8 — Financial Statements and Supplementary Data

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The financial statements and schedules are listed in Part IV, Item 15 of this Form 10-K.

Item 9 — Changes in and Disagreements With Accountants on Accounting and Financial Disclosure

None.

Item 9A — Controls and Procedures

Conclusion  Regarding  the  Effectiveness  of  Disclosure  Controls  and  Procedures  and  Internal  Control  Over  Financial 
Reporting

Under the supervision and with the participation of NRG's management, including its principal executive officer, principal 
financial officer and principal accounting officer, NRG conducted an evaluation of the effectiveness of the design and operation 
of its disclosure controls and procedures, as such term is defined in Rules 13a-15(e) or 15d-15(e) of the Exchange Act. Based on 
this evaluation, the Company's principal executive officer, principal financial officer and principal accounting officer concluded 
that the disclosure controls and procedures were effective as of the end of the period covered by this Annual Report on Form 10-
K. Management's report on the Company's internal control over financial reporting and the report of the Company's independent 
registered public accounting firm are incorporated under the caption "Management's Report on Internal Control over Financial 
Reporting" and under the caption "Report of Independent Registered Public Accounting Firm" in this Annual Report on Form 10-
K for the fiscal year ended December 31, 2017.

Changes in Internal Control over Financial Reporting

There were no changes in NRG’s internal control over financial reporting (as such term is defined in Rule 13a-15(f) under 
the Exchange Act) that occurred in the fourth quarter of 2017 that materially affected, or are reasonably likely to materially affect, 
NRG’s internal control over financial reporting.

Inherent Limitations over Internal Controls

NRG's  internal  control  over  financial  reporting  is  designed  to  provide  reasonable  assurance  regarding  the  reliability  of 
financial reporting and the preparation of consolidated financial statements for external purposes in accordance with GAAP. The 
Company's internal control over financial reporting includes those policies and procedures that:

1.  Pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions 

of the Company's assets;

2.  Provide reasonable assurance that transactions are recorded as necessary to permit preparation of consolidated financial 
statements in accordance with GAAP, and that the Company's receipts and expenditures are being made only in accordance 
with authorizations of its management and directors; and

3.  Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of 

the Company's assets that could have a material effect on the consolidated financial statements.

Internal control over financial reporting cannot provide absolute assurance of achieving financial reporting objectives because 
of its inherent limitations, including the possibility of human error and circumvention by collusion or overriding of controls. 
Accordingly, even an effective internal control system may not prevent or detect material misstatements on a timely basis. Also, 
projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because 
of changes in conditions or that the degree of compliance with the policies or procedures may deteriorate.

Management's Report on Internal Control over Financial Reporting

The  Company's  management  is  responsible  for  establishing  and  maintaining  adequate  internal  control  over  financial 
reporting, as such term is defined in Exchange Act Rule 13a-15(f). Under the supervision and with the participation of the Company's 
management, including its principal executive officer, principal financial officer and principal accounting officer, the Company 
conducted an evaluation of the effectiveness of its internal control over financial reporting based on the framework in Internal 
Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. 
Based on the Company's evaluation under the framework in Internal Control — Integrated Framework (2013), the Company's 
management concluded that its internal control over financial reporting was effective as of December 31, 2017.

The effectiveness of the Company's internal control over financial reporting as of December 31, 2017 has been audited by 
KPMG LLP, the Company's independent registered public accounting firm, as stated in its report which is included in this Annual 
Report on Form 10 K.

The Board of Directors and Stockholders
NRG Energy, Inc.:

Opinion on Internal Control Over Financial Reporting

We have audited NRG Energy, Inc.’s and subsidiaries (the Company) internal control over financial reporting as of December 31, 
2017, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring 
Organizations of the Treadway Commission. In our opinion, the Company maintained, in all material respects, effective internal 
control over financial reporting as of December 31, 2017, based on criteria established in Internal Control — Integrated Framework 
(2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) 
(PCAOB), the consolidated balance sheets of the Company as of December 31, 2017 and 2016, the related consolidated statements 
of operations, comprehensive (loss)/income, cash flows, and stockholders’ equity  for each of the years in the three-year period 
ended  December 31,  2017,  and  the  related  notes  and  financial  statement  schedule  II  (collectively,  the  consolidated  financial 
statements), and our report dated March 1, 2018 expressed an unqualified opinion on those consolidated financial statements.

Basis for Opinion

The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment 
of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal 
Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial 
reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with 
respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities 
and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the 
audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material 
respects. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial 
reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of 
internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary 
in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability 
of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted 
accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain 
to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets 
of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial 
statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are 
being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable 
assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that 
could have a material effect on the financial statements.

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect  misstatements. Also, 
projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because 
of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

(signed) KPMG LLP

Philadelphia, Pennsylvania
March 1, 2018 

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Item 9B — Other Information

None.

Item 10 — Directors, Executive Officers and Corporate Governance

PART III

Directors

E. Spencer Abraham has been a director of NRG since December 2012. Previously, he served as a director of GenOn Energy, 
Inc. from January 2012 to December 2012. He is Chairman and Chief Executive Officer of The Abraham Group, an international 
strategic consulting firm based in Washington, D.C which he founded in 2005. Prior to that, Secretary Abraham served as Secretary 
of Energy under President George W. Bush from 2001 through January 2005 and was a U.S. Senator for the State of Michigan 
from 1995 to 2001. Secretary Abraham serves on the boards of the following public companies: Occidental Petroleum Corporation, 
PBF Energy, and Two Harbors Investment Corp., as well as chairman of the board of Uranium Energy Corp. He also serves on 
the board of C3 IoT, a private company. Secretary Abraham previously served as the non-executive chairman of AREVA, Inc., 
the U.S. subsidiary of the French-owned nuclear company, and as a director of Deepwater Wind LLC, International Battery, Green 
Rock Energy, ICx Technologies, PetroTiger and Sindicatum Sustainable Resources. He also previously served on the advisory 
board or committees of Midas Medici (Utilipoint), Millennium Private Equity, Sunovia and Wetherly Capital.

Kirbyjon H. Caldwell has been a director of NRG since March 2009. He was a director of Reliant Energy, Inc. from August 
2003 to March 2009. Since 1982, he has served as Senior Pastor at the 16,000-member Windsor Village United Methodist Church 
in Houston, Texas. Pastor Caldwell was also a director of United Continental Holdings, Inc. (formerly Continental Airlines, Inc.) 
from 1999 to September 2011. Pastor Caldwell is also on the Board of Trustees of Baylor College of Medicine.

Lawrence S. Coben has served as Chairman of the Board of NRG since 2017 and has been a director of NRG since December 
2003. He is currently Chairman and Chief Executive Officer of Tremisis Energy Corporation LLC. Dr. Coben was Chairman and 
Chief Executive Officer of Tremisis Energy Acquisition Corporation II, a publicly held company, from July 2007 through March 
2009 and of Tremisis Energy Acquisition Corporation from February 2004 to May 2006. From January 2001 to January 2004, he 
was a Senior Principal of Sunrise Capital Partners L.P., a private equity firm. From 1997 to January 2001, Dr. Coben was an 
independent consultant. From 1994 to 1996, Dr. Coben was Chief Executive Officer of Bolivian Power Company.  Dr. Coben 
serves on the board of Freshpet, Inc. and served on the advisory board of Morgan Stanley Infrastructure II, L.P. from September 
2014 through December 2016. Dr. Coben is also Executive Director of the Sustainable Preservation Initiative and a Consulting 
Scholar at the University of Pennsylvania Museum of Archaeology and Anthropology.

Terry G. Dallas has been a director of NRG since December 2012. Previously, he served as a director of GenOn Energy, Inc. 
from December 2010 to December 2012.  Mr. Dallas served as a director of Mirant Corporation from 2006 until December 2010. 
Mr.  Dallas  was  also  the  former  Executive Vice  President  and  Chief  Financial  Officer  of  Unocal  Corporation,  an  oil  and  gas 
exploration and production company prior to its merger with Chevron Corporation, from 2000 to 2005. Prior to that, Mr. Dallas 
held various executive finance positions in his 21-year career with Atlantic Richfield Corporation, an oil and gas company with 
major operations in the United States, Latin America, Asia, Europe and the Middle East.

Mauricio Gutierrez has served as President and Chief Executive Officer of NRG since December 2015 and as a director 
of NRG since January 2016. Prior to December 2015, Mr. Gutierrez was the Executive Vice President and Chief Operating Officer 
of NRG from July 2010 to December 2015.  Mr. Gutierrez also served as the Interim President and Chief Executive Officer of 
NRG Yield, Inc. from December 2015 to May 2016 and Executive Vice President and Chief Operating Officer of NRG Yield, Inc. 
from December 2012 to December 2015.  Mr. Gutierrez has also served on the board of NRG Yield, Inc. since its formation in 
December 2012.  Mr. Gutierrez has been with NRG since August 2004 and served in multiple executive positions within NRG 
including  Executive  Vice  President  -  Commercial  Operations  from  January  2009  to  July  2010  and  Senior  Vice  President  - 
Commercial Operations from March 2008 to January 2009.  Prior to joining NRG in August 2004, Mr. Gutierrez held various 
commercial positions within Dynegy, Inc.

William E. Hantke has been a director of NRG since March 2006. Mr. Hantke served as Executive Vice President and Chief 
Financial Officer of Premcor, Inc., a refining company, from February 2002 until December 2005. Mr. Hantke was Corporate Vice 
President of Development of Tosco Corporation, a refining and marketing company, from September 1999 until September 2001, 
and he also served as Corporate Controller from December 1993 until September 1999. Prior to that position, he was employed 
by Coopers & Lybrand as Senior Manager, Mergers and Acquisitions from 1989 until 1990. He also held various positions from 
1975 until 1988 with AMAX, Inc., including Corporate Vice President, Operations Analysis and Senior Vice President, Finance 
and Administration, Metals and Mining. He was employed by Arthur Young from 1970 to 1975 as Staff/Senior Accountant. Mr. 
Hantke was Non-Executive Chairman of Process Energy Solutions, a private alternative energy company until March 31, 2008 
and served as director and Vice-Chairman of NTR Acquisition Co., an oil refining start-up, until January 2009. Mr. Hantke has 
served on the board of PBF Energy Inc. since February 2016.

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Paul W. Hobby has been a director of NRG since March 2006. Mr. Hobby is the Managing Partner of Genesis Park, L.P., a 
Houston-based private equity business specializing in technology and communications investments which he founded in 1999. 
Mr. Hobby routinely provides management and governance services to Genesis Park portfolio companies, and is currently serving 
as Chairman of Texas Monthly. He previously served as the Chief Executive Officer of Alpheus Communications, Inc., a Texas 
wholesale telecommunications provider from 2004 to 2011, and as Former Chairman of CapRock Services Corp., the largest 
provider of satellite services to the global energy business from 2002 to 2006. From November 1992 until January 2001, he served 
as Chairman and Chief Executive Officer of Hobby Media Services and was Chairman of Columbine JDS Systems, Inc. from 
1995 until 1997. Mr. Hobby is former Chairman of the Houston Branch of the Federal Reserve Bank of Dallas and the Greater 
Houston Partnership and is former Chairman of the Texas Ethics Commission. He was an Assistant U.S. Attorney for the Southern 
District of Texas from 1989 to 1992, Chief of Staff to the Lieutenant Governor of Texas, Bob Bullock and an Associate at Fulbright & 
Jaworski from 1986 to 1989. 

Anne C. Schaumburg has been a director of NRG since April 2005. From 1984 until her retirement in January 2002, she 
was Managing Director of Credit Suisse First Boston and a Senior Banker in the Global Energy Group. From 1979 to 1984, she 
was in the Utilities Group at Dean Witter Financial Services Group, where she last served as Managing Director. From 1971 to 
1978, she was at The First Boston Corporation in the Public Utilities Group. Ms. Schaumburg is also a director of Brookfield 
Infrastructure Partners L.P.

Evan J. Silverstein has been a director of NRG since December 2012. Previously, he served as a director of GenOn from 
August 2006 to December 2012. He served as General Partner and Portfolio Manager of SILCAP LLC, a market-neutral hedge 
fund that principally invests in utilities and energy companies, from January 1993 until his retirement in December 2005. Previously, 
he served as portfolio manager specializing in utilities and energy companies and as senior equity utility analyst. Mr. Silverstein 
has given numerous speeches and has testified before Congress on a variety of energy-related issues. He is an audit committee 
financial expert.

Barry  T.  Smitherman  has  been  a  director  of  NRG  since  February  2017.  Mr.  Smitherman  is  currently  an  energy  industry 
consultant and senior advisor, as well as a licensed attorney in Texas and an adjunct professor of Energy Law at The University 
of Texas School of Law. From April 2015 to January 2017, Mr. Smitherman was a partner with the law firm Vinson & Elkins LLP. 
Mr. Smitherman served on the Railroad Commission of Texas (RRC) from July 2011 through January 2015 where he acted as 
chairman from February 2012 to August 2014. From April 2004 through July 2011, Mr. Smitherman served on the Public Utility 
Commission of Texas where he acted as chairman from November 2007 through July 2011.

Thomas H. Weidemeyer has been a director of NRG since December 2003. Until his retirement in December 2003, Mr. 
Weidemeyer served as Director, Senior Vice President and Chief Operating Officer of United Parcel Service, Inc., the world's 
largest transportation company and President of UPS Airlines. Mr. Weidemeyer became Manager of the Americas International 
Operation in 1989, and in that capacity directed the development of the UPS delivery network throughout Central and South 
America. In 1990, Mr. Weidemeyer became Vice President and Airline Manager of UPS Airlines and, in 1994, was elected its 
President and Chief Operating Officer. Mr. Weidemeyer became Senior Vice President and a member of the Management Committee 
of United Parcel Service, Inc. that same year, and he became Chief Operating Officer of United Parcel Service, Inc. in January 
2001. Mr. Weidemeyer also serves as a director of The Goodyear Tire & Rubber Co., Waste Management, Inc. and Amsted Industries 
Incorporated.

C. John Wilder has been a director of NRG since February 2017. Mr. Wilder has served as the Executive Chairman and a 
member of Investment Committees of three investment vehicles: (i) Bluescape Resources Company; (ii) Parallel Resource Partners; 
and (iii) Bluescape Energy Partners since 2007. Wilder has served as Executive Chairman and director of Exco Resources, Inc. 
from September 2015 to November 2017. Mr. Wilder is on the advisory boards of the McCombs School of Business at the University 
of Texas at Austin and the A.B. Freeman School of Business at Tulane University. Mr. Wilder is a Trustee of Texas Health Resources 
and is a past member of the National Petroleum Council, a Secretary of Energy Appointment. 

Walter R. Young has been a director of NRG since December 2003. From May 1990 to June 2003, Mr. Young was Chairman, 
Chief Executive Officer and President of Champion Enterprises, Inc., an assembler and manufacturer of manufactured homes. 
Mr. Young has held senior management positions with The Henley Group, The Budd Company and BFGoodrich.

Executive Officers

Mauricio Gutierrez has served as President and Chief Executive Officer of NRG since December 2015 and as a director of 

NRG since January 2016.  For additional biographical information for Mr. Gutierrez, see above under "Directors."

Kirkland Andrews has served as Executive Vice President and Chief Financial Officer of NRG Energy since September 2011.  
Mr. Andrews is a director of NRG Yield, Inc. and also served as Executive Vice President, Chief Financial Officer of NRG Yield, 
Inc. from December 2012 to November 2016. Prior to joining NRG, he served as Managing Director and Co-Head Investment 
Banking, Power and Utilities - Americas at Deutsche Bank Securities from June 2009 to September 2011.  Prior to this, he served 
in several capacities at Citigroup Global Markets Inc., including Managing Director, Group Head, North American Power from 
November 2007 to June 2009, and Head of Power M&A, Mergers and Acquisitions from July 2005 to November 2007.  In his 
banking career, Mr. Andrews led multiple large and innovative strategic, debt, equity and commodities transactions.

David Callen has served as Senior Vice President and Chief Accounting Officer since February 2016 and Vice President and 
Chief Accounting Officer from March 2015 to February 2016. In this capacity, Mr. Callen is responsible for directing NRG's 
financial accounting and reporting activities. Mr. Callen also has served as Vice President and Chief Accounting Officer of NRG 
Yield, Inc. since March 2015. Prior to this, Mr. Callen served as the Company's Vice President, Financial Planning & Analysis 
from November 2010 to March 2015. He previously served as Director, Finance from October 2007 through October 2010, Director, 
Financial Reporting from February 2006 through October 2007, and Manager, Accounting Research from September 2004 through 
February 2006. Prior to NRG, Mr. Callen was an auditor for KPMG LLP in both New York City and Tel Aviv Israel from October 
1996 through April 2001.

John Chillemi has served as Executive Vice President, National Business Development of NRG since December 2015.  In 
this role, Mr. Chillemi is responsible for all wholesale generation development activities for NRG across the nation. Prior to 
December 2015, Mr. Chillemi was Senior Vice President and Regional President, West since the acquisition of GenOn in December 
2012.  Mr. Chillemi served as the Regional President in California and the West for GenOn from December 2010 to December 
2012, and as President and Vice President of the West at Mirant Corporation from 2007 to December 2010.  Mr. Chillemi has also 
served as a director of NRG Yield, Inc. since May 2016.  Mr. Chillemi has 30 years of power industry experience, beginning with 
Georgia Power in 1986.

David R. Hill has served as Executive Vice President and General Counsel since September 2012. Mr. Hill also has served 
as the Executive Vice President and General Counsel of NRG Yield, Inc. since December 2012.  Prior to joining NRG, Mr. Hill 
was a partner and co-head of Sidley Austin LLP's global energy practice group from February 2009 to August 2012. Prior to this, 
Mr. Hill served as General Counsel of the U.S. Department of Energy from August 2005 to January 2009 and, for the three years 
prior to that, as Deputy General Counsel for Energy Policy of the U.S. Department of Energy. Before his federal government 
service, Mr. Hill was a partner in major law firms in Washington, D.C. and Kansas City, Missouri, and handled a variety of 
regulatory, litigation and corporate matters. 

Elizabeth Killinger has served as Executive Vice President and President, NRG Retail and Reliant of NRG since February 
2016.  Ms. Killinger was Senior Vice President and President, NRG Retail from June 2015 to February 2016 and Senior Vice 
President and President, NRG Texas Retail from January 2013 to June 2015.  Ms. Killinger has also served as President of Reliant, 
a subsidiary of NRG, since October 2012.  Prior to that, Ms. Killinger was Senior Vice President of Retail Operations and Reliant 
Residential from January 2011 to October 2012.  Ms. Killinger has been with the Company and its predecessors since 2002 and 
has held various operational and business leadership positions within the retail organization.  Prior to joining the Company, Ms. 
Killinger spent a decade providing strategy, management and systems consulting to energy, oilfield services and retail distribution 
companies across the U.S. and in Europe.

Christopher Moser has served as Executive Vice President, Operations of NRG since January 2018. Mr. Moser previously 
served as Senior Vice President, Operations of NRG, with responsibility for Plant Operations, Commercial Operations, Business 
Operations and Engineering and Construction, beginning in March 2016. From June 2010 to March 2016, Mr. Moser served as 
Senior Vice President, Commercial Operations. In this capacity, he was responsible for the optimization of the Company's wholesale 
generation fleet.

Code of Ethics

NRG has adopted a code of ethics entitled "NRG Code of Conduct" that applies to directors, officers and employees, including 
the chief executive officer and senior financial officers of NRG.  It may be accessed through the "Governance" section of the 
Company's website at www.nrg.com.  NRG also elects to disclose the information required by Form 8-K, Item 5.05, "Amendments 
to the Registrant's Code of Ethics, or Waiver of a Provision of the Code of Ethics," through the Company's website, and such 
information will remain available on this website for at least a 12-month period.  A copy of the "NRG Energy, Inc. Code of Conduct" 
is available in print to any stockholder who requests it.

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Other information required by this Item will be incorporated by reference to the similarly named section of NRG's Definitive 

Item 14 — Principal Accounting Fees and Services

Information required by this Item will be incorporated by reference to the similarly named section of NRG's Definitive 

Proxy Statement for its 2018 Annual Meeting of Stockholders.

Proxy Statement for its 2018 Annual Meeting of Stockholders.

Item 11 — Executive Compensation

Information required by this Item will be incorporated by reference to the similarly named section of NRG's Definitive 

Proxy Statement for its 2018 Annual Meeting of Stockholders.

Item 12 — Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Securities Authorized for Issuance under Equity Compensation Plans

Plan Category

Equity compensation plans approved by security

holders

Equity compensation plans not approved by

security holders

Total

(a)
Number of Securities
to be Issued Upon
Exercise of
Outstanding Options,
Warrants and Rights

(b)
Weighted-Average 
Exercise
Price of Outstanding
Options, Warrants and
Rights

(c)
Number of Securities
Remaining Available
for Future Issuance
Under Equity 
Compensation
Plans (Excluding
Securities Reflected
in Column (a))

6,211,050 (1) $

1,369,880 (2)

7,580,930

$

21.49

25.21

23.21

11,831,645

— (4)

11,831,645 (3)

(1)  Consists of shares issuable under the NRG LTIP and the ESPP.  The NRG LTIP became effective upon the Company's emergence from bankruptcy.  On 
April 27, 2017, the NRG LTIP was amended and restated to increase the number of shares available for issuance to 25,000,000.  The ESPP, as amended and 
restated, was approved by the Company's stockholders on April 27, 2017, and became effective April 28, 2017.  As of December 31, 2017, there were 
3,107,050 shares reserved from the Company's treasury shares for the ESPP.

(2)  Consists of shares issuable under the NRG GenOn LTIP.  On December 14, 2012, in connection with the Merger, NRG assumed the GenOn Energy, Inc. 
2010 Omnibus Incentive Plan and changed the name to the NRG 2010 Stock Plan for GenOn Employees, or the NRG GenOn LTIP.  While the GenOn 
Energy, Inc. 2010 Omnibus Incentive Plan was previously approved by stockholders of RRI Energy, Inc. before it became GenOn, the plan is listed as “not 
approved” because the NRG GenOn LTIP was not subject to separate line item approval by NRG's stockholders when the Merger (which included the 
assumption of this plan) was approved.  As part of the Merger, NRG also assumed the GenOn Energy, Inc. 2002 Long-Term Incentive Plan, the GenOn 
Energy, Inc. 2002 Stock Plan, and the Mirant Corporation 2005 Omnibus Incentive Compensation Plan.  NRG has no intention of making any grants or 
awards of its own equity securities under these plans.  The number of securities to be issued upon the exercise of outstanding awards under these plans is 
227,531 at a weighted-average exercise price of $36.07.  See Item 15 — Note 20, Stock-Based Compensation, to Consolidated Financial Statements for a 
discussion of the NRG GenOn LTIP.

(3)  Consists of 8,724,595 shares of common stock under NRG's LTIP and 3,107,050 shares of treasury stock reserved for issuance under the ESPP.  In the first 
quarter of 2018, 175,862 shares were issued to employees' accounts from the treasury stock reserve for the ESPP.  Beginning January 2018, NRG suspended 
the ESPP.

(4)  Upon adoption of the NRG Amended and Restated LTIP effective April 27, 2017, no securities remain available for future issuance under the NRG GenOn 

LTIP.  See Note 20, Stock-Based Compensation, for additional information.

Both the NRG LTIP and the NRG GenOn LTIP provide for grants of stock options, restricted stock, market stock units, 
performance stock units, deferred stock units and dividend equivalent rights.  NRG's directors, officers and employees, as well as 
other individuals performing services for, or to whom an offer of employment has been extended by the Company, are eligible to 
receive grants under the NRG LTIP and the NRG GenOn LTIP.  However, participants eligible for the NRG LTIP at the time of 
the Merger are not eligible to receive grants under the NRG GenOn LTIP.  The purpose of the NRG LTIP and the NRG GenOn 
LTIP is to promote the Company's long-term growth and profitability by providing these individuals with incentives to maximize 
stockholder value and otherwise contribute to the Company's success and to enable the Company to attract, retain and reward the 
best available persons for positions of responsibility.  The Compensation Committee of the Board of Directors administers the 
NRG LTIP and the NRG GenOn LTIP.  

Other information required by this Item will be incorporated by reference to the similarly named section of NRG's Definitive 

Proxy Statement for its 2018 Annual Meeting of Stockholders.

Item 13 — Certain Relationships and Related Transactions, and Director Independence

Information required by this Item will be incorporated by reference to the similarly named section of NRG's Definitive 

Proxy Statement for its 2018 Annual Meeting of Stockholders.

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PART IV

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Item 15 — Exhibits, Financial Statement Schedules

(a)(1) Financial Statements

The following consolidated financial statements of NRG Energy, Inc. and related notes thereto, together with the reports 

thereon of KPMG LLP, are included herein:

Consolidated Statements of Operations — Years ended December 31, 2017, 2016, and 2015 

Consolidated Statements of Comprehensive (Loss)/Income — Years ended December 31, 2017, 2016, and 2015

Consolidated Balance Sheets — As of December 31, 2017 and 2016 

Consolidated Statements of Cash Flows — Years ended December 31, 2017, 2016, and 2015 

Consolidated Statement of Stockholders' Equity — Years ended December 31, 2017, 2016, and 2015 

Notes to Consolidated Financial Statements

(a)(2) Financial Statement Schedule

The following Consolidated Financial Statement Schedule of NRG Energy, Inc. is filed as part of Item 15 of this report 

and should be read in conjunction with the Consolidated Financial Statements.

Schedule II — Valuation and Qualifying Accounts

All other schedules for which provision is made in the applicable accounting regulation of the Securities and Exchange 
Commission are not required under the related instructions or are inapplicable, and therefore, have been omitted.

(a)(3) Exhibits: See Exhibit Index submitted as a separate section of this report.

(b) Exhibits

See Exhibit Index submitted as a separate section of this report.

(c) Not applicable

The Board of Directors and Stockholders
NRG Energy, Inc.: 

Opinion on the Consolidated Financial Statements

We  have  audited  the  accompanying  consolidated  balance  sheets  of  NRG  Energy,  Inc.  and subsidiaries  (the  Company)  as  of 
December 31, 2017 and 2016, the related consolidated statements of operations, comprehensive (loss)/income, cash flows, and 
stockholders’ equity for each of the years in the three year period ended December 31, 2017, and the related notes and financial 
statement schedule II (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements 
present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and 2016, and the results 
of its operations and its cash flows for each of the years in the three year period ended December 31, 2017, in conformity with 
U.S. generally accepted accounting principles. 

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) 
(PCAOB), the Company’s internal control over financial reporting as of December 31, 2017, based on criteria established in 
Internal  Control  -  Integrated  Framework  (2013)  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway 
Commission, and our report dated March 1, 2018 expressed an unqualified opinion on the effectiveness of the Company’s internal 
control over financial reporting.  

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an 
opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB 
and  are  required  to  be  independent  with  respect  to  the  Company  in  accordance  with  the  U.S. federal  securities  laws  and  the 
applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the 
audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether 
due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated 
financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included 
examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits 
also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the 
overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

(signed) KPMG LLP

We have served as the Company's auditor since 2004.

Philadelphia, Pennsylvania
March 1, 2018 

124

125

 
 
 
 
 
 
NRG ENERGY, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS)/INCOME

Net Loss

Other Comprehensive Income, net of tax

Unrealized gain/(loss) on derivatives, net of income tax expense of $1, $1, and

$19

Foreign currency translation adjustments, net of income tax benefit of $(2), $0,

and $0

Available-for-sale securities, net of income tax expense/(benefit) of $10, $0, and

$(3)

Defined benefit plan, net of income tax (benefit)/expense of $(21), $0 and $69

Other comprehensive income

Comprehensive Loss

Less: Comprehensive loss attributable to noncontrolling interests and redeemable
noncontrolling interests

Comprehensive Loss Attributable to NRG Energy, Inc.

Dividends for preferred shares

Gain on redemption of preferred shares

For the Year Ended December 31,

2017

2016

2015

(In millions)

$

(2,337) $

(891) $

(6,436)

13

12

(8)
46

63
(2,274)

(179)

(2,095)

—

—

35

(1)

1

3

38
(853)

(117)

(736)

5

(78)

(15)

(11)

17

10

1
(6,435)

(73)

(6,362)

20

—

Comprehensive Loss Available for Common Stockholders

$

(2,095) $

(663) $

(6,382)

See notes to Consolidated Financial Statements.

NRG ENERGY, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

(In millions, except per share amounts)
Operating Revenues

Total operating revenues
Operating Costs and Expenses

Cost of operations
Depreciation and amortization
Impairment losses
Selling, general and administrative
Reorganization costs
Development costs

Total operating costs and expenses

Other income - affiliate
Gain/(loss) on sale of assets
Gain on postretirement benefits curtailment

Operating (Loss)/Income
Other Income/(Expense)

Equity in earnings of unconsolidated affiliates
Impairment losses on investments
Other income, net
Loss on sale of equity method investment
Net (loss)/gain on debt extinguishment
Interest expense

Total other expense

Loss from Continuing Operations Before Income Taxes

Income tax expense

Net Loss from Continuing Operations

(Loss)/income from discontinued operations, net of income tax

Net Loss

Less: Net loss attributable to noncontrolling interests and redeemable
noncontrolling interests

Net Loss Attributable to NRG Energy, Inc.

Dividends for preferred shares
Gain on redemption of preferred shares
Loss Available for Common Stockholders

Loss Per Share Attributable to NRG Energy, Inc. Common Stockholders

Weighted average number of common shares outstanding — basic and diluted

Loss from continuing operations per weighted average common share — basic and
diluted
(Loss)/Income from discontinued operations per weighted average common share —
basic and diluted

Net Loss per Weighted Average Common Share — Basic and Diluted

Dividends Per Common Share

$

$

$

$

$

See notes to Consolidated Financial Statements.

For the Year Ended December 31,

2017

2016

2015

$

10,629

$

10,512

$

12,328

7,536
1,056
1,709
907
44
67
11,319
87
16
—
(587)

31
(79)
38
—
(53)
(890)
(953)
(1,540)
8
(1,548)
(789)
(2,337)

7,301
1,172
702
1,095
—
89
10,359
193
(80)
—
266

27
(268)
34
—
(142)
(895)
(1,244)
(978)
5
(983)
92
(891)

(184)
(2,153)
—
—
(2,153) $

(117)
(774)
5
(78)
(701) $

9,000
1,351
4,860
1,228
—
154
16,593
193
—
21
(4,051)

36
(56)
26
(14)
10
(937)
(935)
(4,986)
1,345
(6,331)
(105)
(6,436)

(54)
(6,382)
20
—
(6,402)

317

316

329

(4.30) $

(2.51) $

(19.14)

(2.49) $
(6.79) $
$
0.12

0.29
$
(2.22) $
$
0.24

(0.32)
(19.46)
0.58

126

127

 
 
 
 
 
 
 
 
NRG ENERGY, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

Current Assets

ASSETS

Cash and cash equivalents
Funds deposited by counterparties
Restricted cash
Accounts receivable — trade
Inventory
Derivative instruments
Cash collateral posted in support of energy risk management activities
Accounts receivable — affiliate
Current assets held-for-sale
Prepayments and other current assets
Current assets - discontinued operations

Total current assets

Property, plant and equipment, net

Other Assets

Equity investments in affiliates
Notes receivable, less current portion
Goodwill
Intangible assets, net
Nuclear decommissioning trust fund
Derivative instruments
Deferred income taxes
Non-current assets held-for-sale
Other non-current assets
Non-current assets - discontinued operations

Total other assets

Total Assets

See notes to Consolidated Financial Statements.

As of December 31,

2017

2016

(In millions)

$

$

991
37
508
1,079
532
626
171
95
115
261
—
4,415
13,908

1,038
2
539
1,746
692
172
134
43
629
—
4,995
23,318

$

$

938
2
446
1,058
721
1,067
150
—
9
404
1,919
6,714
15,369

1,120
16
662
1,973
610
181
225
10
841
2,961
8,599
30,682

NRG ENERGY, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS (Continued)

LIABILITIES AND STOCKHOLDERS' EQUITY

Current Liabilities

Current portion of long-term debt and capital leases
Accounts payable 
Accounts payable - affiliate
Derivative instruments
Cash collateral received in support of energy risk management activities
Accrued interest expense
Current liabilities - held for sale
Other accrued expenses and other current liabilities
Other accrued expenses and other current liabilities - affiliate
Current liabilities - discontinued operations

Total current liabilities

Other Liabilities

Long-term debt and capital leases
Nuclear decommissioning reserve
Nuclear decommissioning trust liability
Postretirement and other benefit obligations
Deferred income taxes
Derivative instruments
Out-of-market contracts, net
Non-current liabilities held-for-sale
Other non-current liabilities
Non-current liabilities - discontinued operations

Total non-current liabilities

Total Liabilities

Redeemable noncontrolling interest in subsidiaries

Commitments and Contingencies
Stockholders' Equity

Common stock; $0.01 par value; 500,000,000 shares authorized; 418,323,134 and
417,583,825 shares issued; and 316,743,089 and 315,443,011 shares outstanding at
December 31, 2017 and 2016
Additional paid-in capital
Accumulated deficit
Treasury stock, at cost; 101,580,045 and 102,140,814 shares at December 31, 2017
and 2016
Accumulated other comprehensive loss
Noncontrolling interest

Total Stockholders' Equity

Total Liabilities and Stockholders' Equity

See notes to Consolidated Financial Statements.

As of December 31,

2017

2016

(In millions, except share data)

$

$

$

688
881
33
555
37
156
72
734
161
—
3,317

15,716
269
415
458
21
197
207
8
664
—
17,955
21,272
78

4
8,376
(6,268)

(2,386)
(72)
2,314
1,968
23,318

$

516
782
31
1,092
81
180
—
810
—
1,210
4,702

15,957
287
339
510
20
284
230
11
666
3,184
21,488
26,190
46

4
8,358
(3,787)

(2,399)
(135)
2,405
4,446
30,682

128

129

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NRG ENERGY, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

For the Year Ended December 31,
2016

2017

2015

Cash Flows from Operating Activities
Net loss
(Loss)/income from discontinued operations, net of income tax
Loss from continuing operations
Adjustments to reconcile net income/(loss) to net cash provided by operating activities:

Equity in earnings and distribution of unconsolidated affiliates
Depreciation and amortization
Provision for bad debts
Amortization of nuclear fuel
Amortization of financing costs and debt discount/premiums
Adjustment for debt extinguishment
Amortization of intangibles and out-of-market contracts
Amortization of unearned equity compensation
Net (gain)/loss on sale of assets and equity method investments
Gain on post retirement benefits curtailment
Impairment losses
Changes in derivative instruments
Changes in deferred income taxes and liability for uncertain tax benefits
Changes in collateral deposits in support of risk management activities
Proceeds from sale of emission allowances
Changes in nuclear decommissioning trust liability

Cash provided/(used) by changes in other working capital, net of acquisition and disposition effects:

Accounts receivable - trade
Inventory
Prepayments and other current assets
Accounts payable
Accrued expenses and other current liabilities
Other assets and liabilities

Cash provided by continuing operations
Cash (used)/provided by discontinued operations
Net Cash Provided by Operating Activities
Cash Flows from Investing Activities

Acquisition of businesses, net of cash acquired
Capital expenditures
Net cash proceeds from notes receivable
Proceeds from renewable energy grants
Proceeds from/(purchases) of emission allowances, net of purchases
Investments in nuclear decommissioning trust fund securities
Proceeds from sales of nuclear decommissioning trust fund securities
Proceeds from sale of assets, net
Investments in unconsolidated affiliates
Other

Cash used by continuing operations
Cash (used)/provided by discontinued operations
Net Cash Used by Investing Activities
Cash Flows from Financing Activities

Payments of dividends to preferred and common stockholders
Net receipts from settlement of acquired derivatives that include financing elements
Payments for treasury stock
Payments for preferred shares
Payments for debt extinguishment costs
Distributions to, net of contributions from, noncontrolling interests in subsidiaries
Proceeds from sale of noncontrolling interests in subsidiaries
(Payments)/Proceeds from issuance of common stock
Proceeds from issuance of long-term debt
Payments of debt issuance and hedging costs
Payments for short and long-term debt
Receivable from affiliate
Other

Cash used by continuing operations
Cash (used)/provided by discontinued operations

Net Cash Used by Financing Activities

Effect of exchange rate changes on cash and cash equivalents

Change in Cash from discontinued operations

Net Increase/(Decrease) in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted
Cash

Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period

(In millions)

(2,337)
(789)
(1,548) $

$

(891)
92
(983) $

(6,436)
(105)
(6,331)

55
1,056
68
51
60
53
108
35
(34)
—
1,788
(171)
91
(80)
25
11

(99)
143
12
77
(60)
(216)
1,425
(38)
1,387

(41)
(1,111)
17
8
66
(512)
501
87
(40)
12
(1,013)
(53)
(1,066)

(38)
2
—
—
(42)
95
—
(2)
2,270
(63)
(2,348)
(125)
(10)
(261)
(224)
(485)
(1)
(315)

150

1,386

54
1,172
48
49
55
142
167
10
70
—
972
32
(43)
398
34
41

(7)
71
(44)
(39)
(35)
43
2,207
(119)
2,088

(209)
(976)
17
36
(1)
(551)
510
73
(23)
35
(1,089)
297
(792)

(76)
6
—
(226)
(121)
(156)
—
1
5,527
(89)
(5,908)
—
(13)
(1,055)
140
(915)
1
318

64

1,322

37
1,351
64
45
47
(10)
151
39
14
(21)
4,916
235
1,326
(334)
(24)
(2)

113
(59)
(21)
(180)
(29)
(40)
1,287
62
1,349

(31)
(1,029)
18
82
41
(629)
631
27
(395)
16
(1,269)
(259)
(1,528)

(201)
14
(437)
—
—
47
600
1
1,004
(21)
(1,362)
—
(22)
(377)
(55)
(432)
10
(252)

(349)

1,671

NRG ENERGY, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY

Common
Stock

Additional
Paid-In
Capital

Retained
Earnings/ 
(Accumu-
lated 
Deficit)

Accumulated
Other
Comprehensive
Income/(Loss)

Noncon- 
trolling
Interest

Total
Stock-
holders'
Equity

Treasury
Stock

(In millions)

Balances at December 31, 2014

$

4

$

8,327

$

3,588

$ (1,983) $

(174) $

1,914

Net loss

Other comprehensive income/(loss)

Sale of assets to NRG Yield, Inc.

ESPP share purchases

Equity-based compensation

Purchase of treasury stock

Common stock dividends

Preferred stock dividends

Distributions to noncontrolling interests

Contributions from noncontrolling interests

Acquisition of noncontrolling interests by NRG Yield, Inc.

Impact of NRG Yield, Inc. public offering

Equity component of NRG Yield, Inc. convertible notes

(56)

(1)

26

(6,382)

(2)

(191)

(20)

7

(437)

1

(37)

(4)

83

(159)

234

74

599

23

11,676

(6,419)

(3)

27

6

24

(437)

(191)

(20)

(159)

234

74

599

23

Balances at December 31, 2015

$

4

$

8,296

$

(3,007) $ (2,413) $

(173) $

2,727

$

5,434

Net loss

Other comprehensive income

Sale of assets to NRG Yield, Inc.

ESPP share purchases

Equity-based compensation

Common stock dividends

Dividend for preferred shares

Gain on redemption of preferred shares

Distributions to noncontrolling interests

Dividends paid to NRG Yield, Inc.

Contributions from noncontrolling interests

Redemption of noncontrolling interests

59

(2)

5

(774)

(6)

1

(74)

(5)

78

(79)

(853)

38

(16)

14

(158)

(92)

30

(7)

38

43

6

6

(74)

(5)

78

(158)

(92)

30

(7)

Balances at December 31, 2016

$

4

$

8,358

$

(3,787) $ (2,399) $

(135) $

2,405

$

4,446

Net loss

Other comprehensive income

Sale of assets to NRG Yield, Inc.

ESPP share purchases

Equity-based compensation

Common stock dividends

Distributions to noncontrolling interests

Dividends paid to NRG Yield, Inc.

Contributions from noncontrolling interests

Early adoption of new accounting standards

(2,153)

(98)

(2,251)

51

(25)

(3)

29

(4)

13

(38)

17

(286)

12

20

(65)

(108)

160

51

(5)

6

29

(38)

(65)

(108)

160

(257)

Balances at December 31, 2017

$

4

$

8,376

$

(6,268) $ (2,386) $

(72) $

2,314

$

1,968

See notes to Consolidated Financial Statements.

Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period

$

1,536

$

1,386

$

1,322

See notes to Consolidated Financial Statements.
130

131

 
 
 
 
NRG ENERGY, INC. AND SUBSIDIARIES

Transformation Plan

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1 — Nature of Business 

General

NRG  Energy,  Inc.,  or  NRG  or  the  Company,  is  a  leading  integrated  power  company  built  on  the  strength  of  a  diverse 
competitive electric generation portfolio and leading retail electricity platform.  NRG aims to create a sustainable energy future 
by producing, selling and delivering electricity and related products and services in major competitive power markets in the U.S. 
in a manner that delivers value to all of NRG's stakeholders. The Company owns and operates approximately 30,000 MW of 
generation; engages in the trading of wholesale energy, capacity and related products; transacts in and trades fuel and transportation 
services; and directly sells energy, services, and innovative, sustainable products and services to retail customers under the names 
“NRG”, "Reliant" and other retail brand names owned by NRG.

Generation consists of the Company’s wholesale operations, commercial operations, EPC operations, energy services and 
other critical related functions.  NRG has traditionally referred to this business as its wholesale power generation business.  In 
addition to the traditional functions from NRG’s wholesale power generation business, Generation also includes NRG’s business 
solutions, which include demand response, commodity sales, energy efficiency and energy management services, and NRG’s 
conventional distributed generation business, consisting of reliability, combined heat and power, thermal and district heating and 
cooling and large-scale distributed generation. 

Retail is a consumer facing business that includes the Company’s residential retail and C&I business. Products and services 
range from retail energy, portable solar and battery products home services, and a variety of bundled products which combine 
energy with protection products, energy efficiency and renewable energy solutions as well as other distributed and reliability 
products.

Renewables operates the Company’s existing renewables business, including operation of the NRG Yield renewable assets. 
Renewables  is  also  one  of  the  largest  solar  and  wind  power  developers  and  owner-operators  in  the  U.S.,  having  developed, 
constructed and financed a full range of solutions for utilities, schools, municipalities and commercial market segments. 

GenOn Chapter 11 Cases

On June 14, 2017, or the Petition Date, GenOn, along with GenOn Americas Generation and certain of their directly and 
indirectly-owned subsidiaries, or collectively the GenOn Entities, filed voluntary petitions for relief under Chapter 11, or the 
Chapter 11 Cases, of the U.S. Bankruptcy Code, or the Bankruptcy Code, in the U.S. Bankruptcy Court for the Southern District 
of Texas, Houston Division, or the Bankruptcy Court. GenOn Mid-Atlantic, as well as its consolidated subsidiaries, REMA and 
certain other subsidiaries, did not file for relief under Chapter 11.

As a result of the bankruptcy filings and beginning on June 14, 2017, GenOn and its subsidiaries were deconsolidated from 
NRG’s consolidated financial statements. NRG recorded its investment in GenOn under the cost method with an estimated fair 
value of zero. NRG determined that this disposal of GenOn and its subsidiaries is a discontinued operation; and, accordingly, the 
financial information for all historical periods has been recast to reflect GenOn as a discontinued operation.  In connection with 
the  disposal,  NRG  recorded  a  loss  on  deconsolidation  of  $208  million  during  the  quarter  ended  June  30,  2017.  See  Note  3, 
Discontinued Operations, Acquisitions and Dispositions, for more information. 

Prior to the GenOn Entities' filing the Chapter 11 Cases, on June 12, 2017, NRG entered into a restructuring support and 
lock-up agreement, or the Restructuring Support Agreement, with the GenOn Entities and certain holders of the GenOn and GenOn 
Americas Generation Senior Notes, that provides for a restructuring and recapitalization of the GenOn Entities through a prearranged 
plan of reorganization.  On December 12, 2017, the Bankruptcy Court entered an order confirming the plan of reorganization. 
There is no assurance that the GenOn Entities' plan will be successfully implemented. The principal terms of the Restructuring 
Support Agreement  and  further  information  regarding  the  Chapter  11  Cases  are  described  further  in  Note  3,  Discontinued 
Operations, Acquisitions and Dispositions.

On  July  12,  2017,  NRG  announced  its  Transformation  Plan  designed  to  significantly  strengthen  earnings  and  cost 
competitiveness, lower risk and volatility, and create significant shareholder value. The three-part, three-year plan is comprised 
of the following targets: 

Operations and cost excellence — Cost savings and margin enhancement of $1,065 million recurring, which consists of 
$590 million of annual cost savings, a $215 million net margin enhancement program, $50 million annual reduction in 
maintenance capital expenditures, and $210 million in permanent selling, general and administrative expense reduction 
associated with asset sales. 

Portfolio optimization — Targeting up to $3.2 billion of asset sale net cash proceeds, including divestitures of 6 GWs of 
conventional generation and businesses (excluding GenOn) and the expected monetization of 100% of its interest in NRG 
Yield, Inc. and its renewables platform. 

Capital  structure  and  allocation  enhancements  — A  prioritized  capital  allocation  strategy  that  targets  a  reduction  in 
consolidated debt from approximately $19.5 billion ($18 billion net debt) to approximately $6.5 billion ($6 billion net debt).  
Following the completion of the contemplated asset sales, the Company expects $5.3 billion in excess cash to be available 
for allocation through 2020, after achieving its targeted 3.0x net debt / Adjusted EBITDA corporate credit ratio. 

The Company expects to fully implement the Transformation Plan by the end of 2020 with significant completion by the 
end of 2018. The Company expects to realize (i) $370 million of working capital improvements through 2020 and (ii) approximately 
$290 million, one-time costs to achieve. 

NRG Yield, Inc. Ownership

In 2013, the Company formed NRG Yield, Inc. to own and operate a portfolio of contracted generation assets and thermal 
infrastructure assets that have historically been owned and/or operated by NRG and its subsidiaries. In 2013 and 2014, NRG Yield, 
Inc. issued Class A common stock to its public shareholders and utilized the proceeds to acquire a controlling interest in NRG 
Yield LLC, through its ownership of Class A units. At that time, the Company owned the Class B common stock of NRG Yield, 
Inc. and the Class B units of NRG Yield LLC. On May 14, 2015, NRG Yield, Inc. completed a stock split in connection with 
which each outstanding share of Class A common stock was split into one share of Class A common stock and one share of Class 
C common stock, and each outstanding share of Class B common stock was split into one share of Class B common stock and 
one share of Class D common stock. A similar split was effected at NRG Yield LLC with respect to its member units. The Company 
consolidates NRG Yield, Inc. for financial reporting purposes as it maintains a controlling voting interest, and presents the public 
ownership of the Class A and Class C common stock as noncontrolling interest. The Company receives distributions from NRG 
Yield LLC, through its ownership of Class B and Class D units. 

132

133

 
 
 
 
 
 
 
The following table represents the structure of NRG Yield, Inc. as of December 31, 2017:

Cash and Cash Equivalents

Cash and cash equivalents include highly liquid investments with an original maturity of three months or less at the time of 

purchase.

Funds Deposited by Counterparties

Funds deposited by counterparties consist of cash held by the Company as a result of collateral posting obligations from its 
counterparties. Some amounts are segregated into separate accounts that are not contractually restricted but, based on the Company's 
intention, are not available for the payment of general corporate obligations. Depending on market fluctuations and the settlement 
of the underlying contracts, the Company will refund this collateral to the hedge counterparties pursuant to the terms and conditions 
of the underlying trades. Since collateral requirements fluctuate daily and the Company cannot predict if any collateral will be 
held for more than twelve months, the funds deposited by counterparties are classified as a current asset on the Company's balance 
sheet, with an offsetting liability for this cash collateral received within current liabilities. As of December 31, 2016, $79 million
of the cash collateral received was from GenOn, previously a consolidated subsidiary, and is included in cash collateral received 
in current liabilities as a result of deconsolidating GenOn, with the offset included in cash and cash equivalents.

Restricted Cash

The  following  table  provides  a  reconciliation  of  cash  and  cash  equivalents,  restricted  cash  and  funds  deposited  by 
counterparties reported within the consolidated balance sheet that sum to the total of the same such amounts shown in the statement 
of cash flows.

Cash and cash equivalents

Funds deposited by counterparties

Restricted cash

Cash and cash equivalents, funds deposited by counterparties and restricted

cash shown in the statement of cash flows

Year Ended December 31,

2017

2016

2015

(In millions)

991

$

938

$

37

508

2

446

853

55

414

1,536

$

1,386

$

1,322

$

$

Restricted cash consists primarily of funds held to satisfy the requirements of certain debt agreements and funds held within 
the Company's projects that are restricted in their use. Of these funds, as of December 31, 2017, approximately $51 million is 
designated for current debt service payments, $65 million is designated to fund operating expenses, and $57 million is designated 
to fund distributions, with the remaining $335 million restricted for reserves including debt service, performance obligations and 
other reserves, as well as capital expenditures. 

Trade Receivables and Allowance for Doubtful Accounts

Trade receivables are reported in the balance sheet at outstanding principal adjusted for any write-offs and the allowance 
for doubtful accounts.  For its retail business, the Company accrues an allowance for doubtful accounts based on estimates of 
uncollectible revenues by analyzing counterparty credit ratings (for commercial and industrial customers), historical collections, 
accounts receivable aging and other factors.  The retail business writes-off accounts receivable balances against the allowance for 
doubtful accounts when it determines a receivable is uncollectible.  In addition, the Company considers a reserve for doubtful 
accounts based on the credit worthiness of the customers and continually reviews and adjusts for current economic trends that 
might impact the level of future credit losses. The reserve represents management's best estimate of uncollectible amounts. As of 
December 31, 2017 and 2016, the allowance for doubtful accounts was $28 million and $29 million, respectively.

Inventory

Inventory is valued at the lower of weighted average cost or market, and consists principally of fuel oil, coal and raw materials 
used to generate electricity or steam.  The Company removes these inventories as they are used in the production of electricity or 
steam.  Spare parts inventory is valued at weighted average cost.  The Company removes these inventories when they are used 
for repairs, maintenance or capital projects.  The Company expects to recover the fuel oil, coal, raw materials, and spare parts 
costs in the ordinary course of business.   Finished goods inventory is valued at the lower of cost or net realizable value with cost 
being determined on a first-in first-out basis.  The Company removes these inventories as they are sold to customers. Sales of 
inventory are classified as an operating activity in the consolidated statements of cash flows. 

Note 2 — Summary of Significant Accounting Policies 

Basis of Presentation and Principles of Consolidation

The Company's consolidated financial statements have been prepared in accordance with GAAP.  The ASC, established by 
the FASB, is the source of authoritative GAAP to be applied by nongovernmental entities.  In addition, the rules and interpretative 
releases of the SEC under authority of federal securities laws are also sources of authoritative GAAP for SEC registrants.

The consolidated financial statements include NRG's accounts and operations and those of its subsidiaries in which the 
Company has a controlling interest. All significant intercompany transactions and balances have been eliminated in consolidation.  
The usual condition for a controlling financial interest is ownership of a majority of the voting interests of an entity.  However, a 
controlling financial interest may also exist through arrangements that do not involve controlling voting interests.  As such, NRG 
applies the guidance of ASC 810, Consolidations, or ASC 810, to determine when an entity that is insufficiently capitalized or 
not controlled through its voting interests, referred to as a VIE, should be consolidated.

Segment Reporting

The  Company's  businesses  are  segregated  as  follows:  Generation,  which  includes  generation,  international  and  BETM; 
Retail, which includes Mass customers, and Business Solutions, which includes C&I customers and other distributed and reliability 
products; Renewables, which includes solar and wind assets, excluding those in NRG Yield; NRG Yield; and corporate activities. On 
June 14, 2017, as described in Note 3, Discontinued Operations, Acquisitions and Dispositions, NRG deconsolidated GenOn for 
financial reporting purposes. The financial information for all historical periods has been recast to reflect the presentation of GenOn 
as discontinued operations within the corporate segment. The Company's segment structure and its allocation of corporate expenses 
were updated to reflect how management makes financial decisions and allocates resources. The Company has recast data from 
prior periods to reflect this change in reportable segments to conform to the current year presentation.  

134

135

 
 
 
 
 
 
 
 
 
Property, Plant and Equipment

Property, plant and equipment are stated at cost or, in the case of business acquisitions, fair value; however, impairment 
adjustments are recorded whenever events or changes in circumstances indicate that their carrying values may not be recoverable. 
See  Note  3,  Discontinued  Operations,  Acquisitions  and  Dispositions,  for  more  information  on  acquired  property,  plant  and 
equipment. NRG also classifies nuclear fuel related to the Company's 44% ownership interest in STP as part of the Company's 
property, plant, and equipment. Significant additions or improvements extending asset lives are capitalized as incurred, while 
repairs  and  maintenance  that  do  not  improve  or  extend  the  life  of  the  respective  asset  are  charged  to  expense  as  incurred.  
Depreciation, other than nuclear fuel, is computed using the straight-line method, while nuclear fuel is amortized based on units 
of production over the estimated useful lives. Certain assets and their related accumulated depreciation amounts are adjusted for 
asset retirements and disposals with the resulting gain or loss included in cost of operations in the consolidated statements of 
operations.

Asset Impairments

Long-lived assets that are held and used are reviewed for impairment whenever events or changes in circumstances indicate 
carrying values may not be recoverable. Such reviews are performed in accordance with ASC 360. An impairment loss is indicated 
if the total future estimated undiscounted cash flows expected from an asset are less than its carrying value. An impairment charge 
is measured by the difference between an asset's carrying amount and fair value with the difference recorded in operating costs 
and expenses in the consolidated statements of operations. Fair values are determined by a variety of valuation methods, including 
third-party appraisals, sales prices of similar assets, and present value techniques.

Investments accounted for by the equity method are reviewed for impairment in accordance with ASC 323, Investments-
Equity Method and Joint Ventures, or ASC 323, which requires that a loss in value of an investment that is an other-than-temporary 
decline should be recognized. The Company identifies and measures losses in the value of equity method investments based upon 
a comparison of fair value to carrying value.

For further discussion of these matters, refer to Note 10, Asset Impairments.

Development Costs and Capitalized Interest

Development  costs  include  project  development  costs,  which  are  expensed  in  the  preliminary  stages  of  a  project  and 
capitalized when the project is deemed to be commercially viable. Commercial viability is determined by one or a series of actions 
including, among others, Board of Director approval pursuant to a formal project plan that subjects the Company to significant 
future obligations that can only be discharged by the use of a Company asset. When a project is available for operations, capitalized 
interest and capitalized project development costs are reclassified to property, plant and equipment and depreciated on a straight-
line basis over the estimated useful life of the project's related assets. Capitalized costs are charged to expense if a project is 
abandoned or management otherwise determines the costs to be unrecoverable. 

Interest incurred on funds borrowed to finance capital projects is capitalized until the project under construction is ready for 
its intended use. The amount of interest capitalized for the years ended December 31, 2017, 2016, and 2015, was $34 million, $30 
million, and $25 million, respectively.

Debt Issuance Costs

Debt issuance costs are capitalized and amortized as interest expense on a basis which approximates the effective interest 
method over the term of the related debt. Debt issuance costs are presented as a direct deduction from the carrying amount of the 
related debt. 

Intangible Assets

Intangible  assets  represent  contractual  rights  held  by  the  Company.  The  Company  recognizes  specifically  identifiable 
intangible assets including customer contracts, customer relationships, energy supply contracts, marketing partnerships, power 
purchase agreements, trade names, emission allowances, and fuel contracts when specific rights and contracts are acquired.  In 
addition, the Company also established values for emission allowances and power contracts upon adoption of Fresh Start reporting.  
These intangible assets are amortized based on expected volumes, expected delivery, expected discounted future net cash flows, 
straight line or units of production basis. As of December 31, 2017 and 2016, the Company had accumulated amortization related 
to its intangible assets of $1.8 billion and $1.7 billion, respectively.

Intangible assets determined to have indefinite lives are not amortized, but rather are tested for impairment at least annually 
or more frequently if events or changes in circumstances indicate that such acquired intangible assets have been determined to 
have finite lives and should now be amortized over their useful lives. 

Emission allowances held-for-sale, which are included in other non-current assets on the Company's consolidated balance 
sheet, are not amortized; they are carried at the lower of cost or fair value and reviewed for impairment in accordance with ASC 
360.

Goodwill

In accordance with ASC 350, the Company recognizes goodwill for the excess cost of an acquired entity over the net value 
assigned to assets acquired and liabilities assumed.  NRG performs goodwill impairment tests annually, during the fourth quarter, 
and when events or changes in circumstances indicate that the carrying value may not be recoverable.  

The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting 
unit is less than its carrying amount. The more-likely-than-not threshold is defined as having a likelihood of more than 50 percent.  
If it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, there is no goodwill impairment.

In the absence of sufficient qualitative factors, the Company performs a quantitative assessment by determining the fair value 
of the reporting unit and comparing the fair value to its book value. If the fair value of the reporting unit exceeds its book value, 
goodwill  of  the  reporting  unit  is  not  considered  impaired.  If  the  book  value  exceeds  fair  value,  the  Company  recognizes  an 
impairment loss equal to the difference between book value and fair value.

For further discussion of goodwill and goodwill impairment losses recognized during 2017 and 2016, refer to Note 11, 

Goodwill and Other Intangibles.

Income Taxes

The Company accounts for income taxes using the liability method in accordance with ASC 740, which requires that the 
Company use the asset and liability method of accounting for deferred income taxes and provide deferred income taxes for all 
significant temporary differences.

The Company has two categories of income tax expense or benefit — current and deferred, as follows:

•  Current income tax expense or benefit consists solely of current taxes payable less applicable tax credits, and

•  Deferred income tax expense or benefit is the change in the net deferred income tax asset or liability, excluding amounts 

charged or credited to accumulated other comprehensive income.

The Company reports some of its revenues and expenses differently for financial statement purposes than for income tax 
return purposes, resulting in temporary and permanent differences between the Company's financial statements and income tax 
returns.  The tax effects of such temporary differences are recorded as either deferred income tax assets or deferred income tax 
liabilities in the Company's consolidated balance sheets.  The Company measures its deferred income tax assets and deferred 
income tax liabilities using income tax rates that are currently in effect. The Company believes it is more likely than not that the 
results of future operations will generate sufficient taxable income which includes the future reversal of existing taxable temporary 
differences to realize deferred tax assets, net of valuation allowances. In arriving at this conclusion to utilize projections of future 
profit before tax in its estimate of future taxable income, including the potential impact of the Tax Cuts and Jobs Act legislation, 
or the Tax Act, the Company considered the profit before tax generated in recent years.  A valuation allowance is recorded to 
reduce the Company's net deferred tax assets to an amount that is more-likely-than-not to be realized.

The Company reduces its current income tax expense in the consolidated statement of operations for any investment tax 
credits, or ITCs, that are not convertible into cash grants, as well as other tax credits, in the period the tax credit is generated.  ITCs 
that are convertible into cash grants, as well as the deferred income tax benefit generated by the difference in the financial statement 
and tax basis of the related assets, are recorded as a reduction to the carrying value of the underlying property and subsequently 
amortized to earnings on a straight-line basis over the useful life of each underlying property.

The Company accounts for uncertain tax positions in accordance with ASC 740, which applies to all tax positions related 
to income taxes.  Under ASC 740, tax benefits are recognized when it is more-likely-than-not that a tax position will be sustained 
upon examination by the authorities.  The benefit recognized from a position that has surpassed the more-likely-than-not threshold 
is the largest amount of benefit that is more than 50% likely to be realized upon settlement.  The Company recognizes interest and 
penalties accrued related to uncertain tax benefits as a component of income tax expense.

In accordance with ASC 805 and as discussed further in Note 19, Income Taxes, changes to existing net deferred tax assets 

or valuation allowances or changes to uncertain tax benefits, are recorded to income tax expense.

136

137

 
 
 
 
 
 
Revenue Recognition

Cost of Energy for Retail Operations

Energy — Both physical and financial transactions are entered into to optimize the financial performance of the Company's 
generating facilities. Electric energy revenue is recognized upon transmission to the customer. Physical transactions, or the sale 
of generated electricity to meet supply and demand, are recorded on a gross basis in the Company's consolidated statements of 
operations. Financial transactions, or the buying and selling of energy for trading purposes, are recorded net within operating 
revenues in the consolidated statements of operations in accordance with ASC 815.

Capacity — Capacity revenues are recognized when contractually earned, and consist of revenues billed to a third party at 
either the market or a negotiated contract price for making installed generation capacity available in order to satisfy system integrity 
and reliability requirements.

Sale of Emission Allowances — The Company records its bank of emission allowances as part of intangible assets. From 
time to time, management may authorize the transfer of emission allowances in excess of usage from the Company's emission 
bank to intangible assets held-for-sale for trading purposes. The Company records the sale of emission allowances on a net basis 
within operating revenue in the Company's consolidated statements of operations.

Contract Amortization — Assets and liabilities recognized from power sales agreements assumed at Fresh Start and through 
acquisitions related to the sale of electric capacity and energy in future periods for which the fair value has been determined to be 
significantly less (more) than market are amortized to revenue over the term of each underlying contract based on actual generation 
and/or contracted volumes.

Retail revenues — Gross revenues for energy sales and services to retail customers are recognized upon delivery under the 
accrual method. Energy sales and services that have been delivered but not billed by period end are estimated. Gross revenues 
also includes energy revenues from resales of purchased power, which were $187 million, $154 million and $165 million for the 
years ended December 31, 2017, 2016, and 2015, respectively. These revenues represent the sale of excess supply to third parties 
in the market.

Accrued unbilled revenues are based on estimates of customer usage since the date of the last meter reading provided by the 
independent system operators or electric distribution companies. Volume estimates are based on daily forecasted volumes and 
estimated customer usage by class. Unbilled revenues are calculated by multiplying these volume estimates by the applicable rate 
by customer class. Estimated amounts are adjusted when actual usage is known and billed. The Company recorded receivables 
for unbilled revenues of $376 million, $321 million and $307 million as of December 31, 2017, 2016, and 2015, respectively, for 
retail energy sales and services.

Consumer product revenues are recognized when title and risk of loss pass to the retailer, distributor, or end-customer and 
when all of the following have occurred: a firm sales agreement is in place, delivery has occurred, pricing is fixed and determinable, 
and collection is reasonably assured. Revenue is recognized as the net amount expected to be received after deducting estimated 
amounts for product returns, discounts, and allowances based on historical return rates and reasonable judgment. 

Lessor Accounting

Certain of the Company’s revenues are obtained through PPAs or other contractual agreements.  Many of these agreements 

are accounted for as operating leases under ASC 840 Leases.

Certain of these leases have no minimum lease payments and all of the rent is recorded as contingent rent on an actual basis 
when the electricity is delivered.  Judgment is required by management in determining the economic life of each generating facility, 
in evaluating whether certain lease provisions constitute minimum payments or represent contingent rent and other factors in 
determining whether a contract contains a lease and whether the lease is an operating lease or capital lease.  Contingent rental 
income recognized in the years ended December 31, 2017, 2016, and 2015 was $879 million, $912 million, and $753 million, 
respectively.

Gross Receipts and Sales Taxes

In connection with its retail business, the Company records gross receipts taxes on a gross basis in revenues and cost of 
operations in its consolidated statements of operations.  During the years ended December 31, 2017, 2016, and 2015, the Company's 
revenues  and  cost  of  operations  included  gross  receipts  taxes  of  $92  million,  $101  million,  and  $110  million,  respectively.  
Additionally, the retail business records sales taxes collected from its taxable customers and remitted to the various governmental 
entities on a net basis; thus, there is no impact on the Company's consolidated statement of operations.

The cost of energy for electricity sales and services to retail customers is included in cost of operations and is based on 
estimated supply volumes for the applicable reporting period. A portion of the cost of energy ($107 million, $90 million and $85 
million  as  of  December 31,  2017,  2016,  and  2015,  respectively)  was  accrued  and  consisted  of  estimated  transmission  and 
distribution  charges  not  yet  billed  by  the  transmission  and  distribution  utilities.  In  estimating  supply  volumes,  the  Company 
considers the effects of historical customer volumes, weather factors and usage by customer class.  Transmission and distribution 
delivery fees are estimated using the same method used for electricity sales and services to retail customers.  In addition, ISO fees 
are estimated based on historical trends, estimated supply volumes and initial ERCOT ISO settlements. Volume estimates are then 
multiplied by the supply rate and recorded as cost of operations in the applicable reporting period.

Derivative Financial Instruments

The  Company  accounts  for  derivative  financial  instruments  under ASC  815,  which  requires  the  Company  to  record  all 
derivatives on the balance sheet at fair value unless they qualify for a NPNS exception. Changes in the fair value of non-hedge 
derivatives are immediately recognized in earnings. Changes in the fair value of derivatives accounted for as cash flow hedges, 
if elected for hedge accounting, are deferred and recorded as a component of accumulated OCI until the hedged transactions occur 
and are recognized in earnings.

The Company's primary derivative instruments are power purchase or sales contracts, fuels purchase contracts, other energy 
related commodities, and interest rate instruments used to mitigate variability in earnings due to fluctuations in market prices and 
interest rates.  On an ongoing basis, the Company assesses the effectiveness of all derivatives that are designated as hedges for 
accounting purposes in order to determine that each derivative continues to be highly effective in offsetting changes in fair values 
or cash flows of hedged items. Internal analyses that measure the statistical correlation between the derivative and the associated 
hedged item determine the effectiveness of such a contract designated as a hedge.  If it is determined that the derivative instrument 
is not highly effective as a hedge, hedge accounting will be discontinued prospectively.  In this case, the gain or loss previously 
deferred in accumulated OCI would be frozen until the underlying hedged instrument is delivered unless the transactions being 
hedged are no longer probable of occurring in which case the amount in OCI would be immediately reclassified into earnings. If 
the derivative instrument is terminated, the effective portion of this derivative deferred in accumulated OCI will be frozen until 
the underlying hedged item is delivered.

Revenues and expenses on contracts that qualify for the NPNS exception are recognized when the underlying physical 
transaction is delivered.  While these contracts are considered derivative financial instruments under ASC 815, they are not recorded 
at fair value, but on an accrual basis of accounting.  If it is determined that a transaction designated as NPNS no longer meets the 
scope exception, the fair value of the related contract is recorded on the balance sheet and immediately recognized through earnings.

NRG's trading activities are subject to limits in accordance with the Company's Risk Management Policy.  These contracts 
are recognized on the balance sheet at fair value and changes in the fair value of these derivative financial instruments are recognized 
in earnings.

Foreign Currency Translation and Transaction Gains and Losses

The local currencies are generally the functional currency of NRG's foreign operations.  Foreign currency denominated assets 
and liabilities are translated at end-of-period rates of exchange. Revenues, expenses, and cash flows are translated at the weighted-
average  rates  of  exchange  for  the  period.   The  resulting  currency  translation  adjustments  are  not  included  in  the  Company's 
consolidated statements of operations for the period, but are accumulated and reported as a separate component of stockholders' 
equity until sale or complete or substantially complete liquidation of the net investment in the foreign entity takes place.  Foreign 
currency transaction gains or losses are reported within other income/(expense) in the Company's consolidated statements of 
operations.  For the years ended December 31, 2017, 2016, and 2015, amounts recognized as foreign currency transaction gains 
(losses) were immaterial.  The Company's cumulative translation adjustment balances as of December 31, 2017, 2016, and 2015
were $(2) million, $(11) million and $(10) million, respectively.

138

139

 
 
 
 
 
 
Concentrations of Credit Risk

Investments Accounted for by the Equity Method

Financial instruments which potentially subject the Company to concentrations of credit risk consist primarily of trust funds, 
accounts receivable, notes receivable, derivatives, and investments in debt securities. Trust funds are held in accounts managed 
by experienced investment advisors. Certain accounts receivable, notes receivable, and derivative instruments are concentrated 
within entities engaged in the energy industry. These industry concentrations may impact the Company's overall exposure to credit 
risk, either positively or negatively, in that the customers may be similarly affected by changes in economic, industry or other 
conditions. Receivables and other contractual arrangements are subject to collateral requirements under the terms of enabling 
agreements. However, the Company believes that the credit risk posed by industry concentration is offset by the diversification 
and creditworthiness of its customer base. See Note 4, Fair Value of Financial Instruments, for a further discussion of derivative 
concentrations.

The Company has investments in various domestic energy projects, as well as one Australian project.  The equity method 
of accounting is applied to such investments in affiliates, which include joint ventures and partnerships, because the ownership 
structure prevents the Company from exercising a controlling influence over the operating and financial policies of the projects.  
Under this method, equity in pre-tax income or losses of domestic partnerships and, generally, in the net income or losses of its 
Australian project, are reflected as equity in earnings of unconsolidated affiliates. For certain investments that relate to tax equity 
arrangements, equity earnings are allocated using the hypothetical liquidation at book value, or HLBV, method which is described 
below. Distributions from equity method investments that represent earnings on the Company's investment are included within 
cash flows from operating activities and distributions from equity method investments that represent a return of the Company's 
investment are included within cash flows from investing activities. 

Fair Value of Financial Instruments

Tax Equity Arrangements

The carrying amount of cash and cash equivalents, funds deposited by counterparties, receivables, accounts payable, and 
accrued  liabilities  approximate  fair  value  because  of  the  short-term  maturity  of  these  instruments.  See  Note  4,  Fair  Value  of 
Financial Instruments, for a further discussion of fair value of financial instruments.  

Asset Retirement Obligations

The Company accounts for AROs in accordance with ASC 410-20, Asset Retirement Obligations, or ASC 410-20.  Retirement 
obligations associated with long-lived assets included within the scope of ASC 410-20 are those for which a legal obligation exists 
under enacted laws, statutes, and written or oral contracts, including obligations arising under the doctrine of promissory estoppel, 
and for which the timing and/or method of settlement may be conditional on a future event. ASC 410-20 requires an entity to 
recognize the fair value of a liability for an ARO in the period in which it is incurred and a reasonable estimate of fair value can 
be made.

Upon initial recognition of a liability for an ARO, the Company capitalizes the asset retirement cost by increasing the carrying 
amount of the related long-lived asset by the same amount.  Over time, the liability is accreted to its future value, while the 
capitalized cost is depreciated over the useful life of the related asset.  See Note 13, Asset Retirement Obligations, for a further 
discussion of AROs.

Pensions and Other Postretirement Benefits

The  Company  offers  pension  benefits  through  a  defined  benefit  pension  plan.    In  addition,  the  Company  provides 
postretirement  health  and  welfare  benefits  for  certain  groups  of  employees.  The  Company  accounts  for  pension  and  other 
postretirement benefits in accordance with ASC 715, Compensation — Retirement Benefits.  The Company recognizes the funded 
status of the Company's defined benefit plans in the statement of financial position and records an offset for gains and losses as 
well as all prior service costs that have not been included as part of the Company's net periodic benefit cost to other comprehensive 
income.  The determination of the Company's obligation and expenses for pension benefits is dependent on the selection of certain 
assumptions.  These assumptions determined by management include the discount rate, the expected rate of return on plan assets 
and the rate of future compensation increases. The Company's actuarial consultants determine assumptions for such items as 
retirement age.  The assumptions used may differ materially from actual results, which may result in a significant impact to the 
amount of pension obligation or expense recorded by the Company.

The Company measures the fair value of its pension assets in accordance with ASC 820, Fair Value Measurements and 

Disclosures, or ASC 820.

Stock-Based Compensation

The  Company  accounts  for  its  stock-based  compensation  in  accordance  with  ASC 718,  Compensation —  Stock 
Compensation, or ASC 718.  The fair value of the Company's non-qualified stock options and market stock units are estimated 
on the date of grant using the Black-Scholes option-pricing model and the Monte Carlo valuation model, respectively.  NRG uses 
the Company's common stock price on the date of grant as the fair value of the Company's restricted stock units and deferred stock 
units.  Forfeiture rates are estimated based on an analysis of the Company's historical forfeitures, employment turnover, and 
expected future behavior.  The Company recognizes compensation expense for both graded and cliff vesting awards on a straight-
line basis over the requisite service period for the entire award.

The  Company’s  redeemable  noncontrolling  interest  in  subsidiaries  and  certain  amounts  within  noncontrolling  interest, 
included in stockholders' equity, represent third-party interests in the net assets under certain tax equity arrangements, which are 
consolidated by the Company, that have been entered into to finance the cost of solar energy systems under operating leases and 
wind facilities eligible for certain tax credits.  The Company has determined that the provisions in the contractual agreements of 
these structures represent substantive profit sharing arrangements.  Further, the Company has determined that the appropriate 
methodology for calculating the noncontrolling interest and redeemable noncontrolling interest that reflects the substantive profit 
sharing arrangements is a balance sheet approach utilizing the HLBV method.  Under the HLBV method, the amounts reported 
as noncontrolling interest and redeemable noncontrolling interests represent the amounts the investors that are party to the tax 
equity arrangements would hypothetically receive at each balance sheet date under the liquidation provisions of the contractual 
agreements, assuming the net assets of the funding structures were liquidated at their recorded amounts determined in accordance 
with GAAP.  The investors’ interests in the results of operations of the funding structures are determined as the difference in 
noncontrolling interest and redeemable noncontrolling interests at the start and end of each reporting period, after taking into 
account any capital transactions between the structures and the funds’ investors.  The calculations utilized to apply the HLBV 
method include estimated calculations of taxable income or losses for each reporting period.  

Redeemable Noncontrolling Interest

To the extent that the third-party has the right to redeem their interests for cash or other assets, the Company has included 
the noncontrolling interest attributable to the third party as a component of temporary equity in the mezzanine section of the 
consolidated balance sheet. The following table reflects the changes in the Company's redeemable noncontrolling interest balance 
for the years ended December 31, 2017, 2016, and 2015.

Balance as of December 31, 2014

Cash contributions from redeemable noncontrolling interest

Comprehensive loss attributable to redeemable noncontrolling interest

Balance as of December 31, 2015

Distributions to redeemable noncontrolling interest

Contributions from redeemable noncontrolling interest

Non-cash adjustments to redeemable noncontrolling interest

Comprehensive loss attributable to redeemable noncontrolling interest

Balance as of December 31, 2016

Distributions to redeemable noncontrolling interest

Contributions from redeemable noncontrolling interest

Non-cash adjustments to redeemable noncontrolling interest
Comprehensive loss attributable to redeemable noncontrolling interest

Balance as of December 31, 2017

(In millions)

$

$

19

27
(17)
29
(1)
33

23
(38)
46
(2)
99

7
(72)
78

140

141

 
 
 
 
 
 
Sale-Leaseback Arrangements 

Recent Accounting Developments - Guidance Adopted in 2017

NRG is party to sale-leaseback arrangements that provide for the sale of certain assets to a third party and simultaneous 
leaseback to the Company.  In accordance with ASC 840-40, Sale-Leaseback Transactions, if the seller-lessee retains, through the 
leaseback, substantially all of the benefits and risks incident to the ownership of the property sold, the sale-leaseback transaction 
is accounted for as a financing arrangement.  An example of this type of continuing involvement would include an option to 
repurchase the assets or the buyer-lessor having the option to sell the assets back to the Company.  This provision is included in 
most of the Company’s sale-leaseback arrangements.  As such, the Company accounts for these arrangements as financings.

Under the financing method, the Company does not recognize as income any of the sale proceeds received from the lessor 
that contractually constitutes payment to acquire the assets subject to these arrangements.  Instead, the sale proceeds received are 
accounted for as financing obligations and leaseback payments made by the Company are allocated between interest expense and 
as a reduction to the financing obligation.  Interest on the financing obligation is calculated using the Company’s incremental 
borrowing rate at the inception of the arrangement on the outstanding financing obligation.  Judgment is required to determine 
the appropriate borrowing rate for the arrangement and in determining any gain or loss on the transaction that would be recorded 
either at the end of or over the lease term.

Marketing and Advertising Costs 

The Company expenses its marketing and advertising costs as incurred and which are included within selling, general and 
administrative expenses.  Marketing and advertising expenses for the years ended December 31, 2017, 2016, and 2015 were $184 
million, $247 million, and $309 million, respectively.  The costs of tangible assets used in advertising campaigns are recorded as 
fixed assets or deferred advertising costs and amortized as advertising costs over the shorter of the useful life of the asset or the 
advertising campaign.  The Company has several long-term sponsorship arrangements.  Payments related to these arrangements 
are deferred and expensed over the term of the arrangement.  Advertising expenses for the years ended December 31, 2017, 2016, 
and 2015 were $42 million, $53 million, and $135 million, respectively. 

Reorganization Costs

Reorganization costs include costs incurred by the Company related to the Transformation Plan implementation and primarily 

reflect personnel costs related to cost savings initiatives.  As of December 31, 2017, $44 million has been incurred.

Business Combinations

The Company accounts for its business combinations in accordance with ASC 805, Business Combinations, or ASC 805. 
ASC 805 requires an acquirer to recognize and measure in its financial statements the identifiable assets acquired, the liabilities 
assumed, and any noncontrolling interest in the acquiree at fair value at the acquisition date.  It also recognizes and measures the 
goodwill acquired or a gain from a bargain purchase in the business combination and determines what information to disclose to 
enable users of an entity's financial statements to evaluate the nature and financial effects of the business combination.  In addition, 
transaction costs are expensed as incurred.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States 
requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of 
the financial statements, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported 
amounts of revenues and expenses during the reporting period.  Actual results could differ from these estimates. 

In recording transactions and balances resulting from business operations, the Company uses estimates based on the best 
information available. Estimates are used for such items as plant depreciable lives, tax provisions, uncollectible accounts, actuarially 
determined benefit costs, the valuation of energy commodity contracts, environmental liabilities, legal costs incurred in connection 
with recorded loss contingencies, and assets acquired and liabilities assumed in business combinations, among others.  In addition, 
estimates are used to test long-lived assets and goodwill for impairment and to determine the fair value of impaired assets.  As 
better  information  becomes  available  or  actual  amounts  are  determinable,  the  recorded  estimates  are  revised.    Consequently, 
operating results can be affected by revisions to prior accounting estimates.

Reclassifications

Certain prior-year amounts have been reclassified for comparative purposes. The reclassifications did not affect results from 

operations, net assets or cash flows.

ASU 2018-02 — In February 2018, the FASB issued ASU No. 2018-02, Income Statement - Reporting Comprehensive Income 
(Topic 220), Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, or ASU No. 2018-02. Prior 
to ASU No. 2018-02, GAAP required the remeasurement of deferred tax assets and liabilities as a result of a change in tax laws 
or rates to be presented in net income from continuing operations, even in situations in which the related income tax effects of 
items in accumulated other comprehensive income were originally recognized in other comprehensive income. As a result, such 
items, referred to as stranded tax effects, did not reflect the appropriate tax rate. Under ASU No. 2018-02, entities are permitted, 
but  not  required,  to  reclassify  from  accumulated  other  comprehensive  income  to  retained  earnings  those  stranded  tax  effects 
resulting from the Tax Act. ASU No. 2018-02 is effective for all entities for fiscal years beginning after December 15, 2018, and 
interim periods within those fiscal years. Early adoption is permitted. The Company adopted the new standard effective December 
31, 2017. As a result of the adoption, the Company reclassified $13 million from accumulated other comprehensive loss to retained 
earnings in the consolidated balance sheet as of December 31, 2017.

ASU  2017-12  —  In August  2017,  the  FASB  issued ASU  No.  2017-12,  Derivatives  and  Hedging  (Topic  815),  Targeted 
Improvements to Accounting for Hedging Activities, or ASU No. 2017-12. The amendments of ASU No. 2017-12 were issued to 
simplify the application of hedge accounting guidance and more closely align financial reporting for hedging relationships with 
economic results of an entity's risk management activities. The issues addressed by ASU No. 2017-12 include but are not limited 
to alignment of risk management activities and financial reporting, risk component hedging, accounting for the hedged item in 
fair value hedges of interest rate risk, recognition and presentation of the effects of hedging instruments, amounts excluded from 
the assessment of hedge effectiveness, and other simplifications of hedge accounting guidance. The Company adopted the guidance 
in ASU  No.  2017-12  during  the  fourth  quarter  of  2017,  with  no  material  adjustments  recorded  to  the  consolidated  results  of 
operations, cash flows, and statement of financial position.

ASU 2016-18 — In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230), Restricted 
Cash, or ASU No. 2016-18. The amendments of ASU No. 2016-18 require an entity to include amounts generally described as 
restricted cash and restricted cash equivalents, including funds deposited by counterparties with cash and cash equivalents when 
reconciling the beginning of period and end of period total amounts on the statement of cash flows. The amendments of ASU No. 
2016-18 are effective for annual reporting periods beginning after December 15, 2017, and interim periods within those annual 
periods. Early adoption is permitted and the adoption of ASU No. 2016-18 will be applied retrospectively. The Company adopted 
the guidance in ASU No. 2016-18 during the second quarter of 2017. In connection with the adoption of the standard, the Company 
has applied the guidance retrospectively which resulted in a (decrease)/increase in cash flows from operations of $(53) million
and $37 million and an increase/(decrease) in cash flows from investing of $32 million and $(43) million on the statement of cash 
flows for the years ended December 31, 2016 and 2015, respectively. 

ASU 2016-16 — In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740), Intra-Entity Transfers of 
Assets Other Than Inventory, or ASU No. 2016-16.  Previous GAAP prohibited the recognition of current and deferred income 
taxes for an intra-entity asset transfer until the asset has been sold to an outside party which has resulted in diversity in practice 
and increased complexity within financial reporting.  The amendments of ASU No. 2016-16 require an entity to recognize the 
income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs.  The Company 
adopted the guidance in ASU No. 2016-16 effective January 1, 2017. In connection with the adoption of the standard, the Company 
recorded a reduction to non-current assets of $267 million with a corresponding reduction to cumulative retained deficit as of 
December 31, 2017. 

ASU 2016-15 — In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230), Classification 
of Certain Cash Receipts and Cash Payments, or ASU No. 2016-15. The amendments of ASU No. 2016-15 were issued to address 
eight specific cash flow issues for which stakeholders have indicated to the FASB that a diversity in practice existed in how entities 
were presenting and classifying these items in the statement of cash flows. The issues addressed by ASU No. 2016-15 include but 
are not limited to the classification of debt prepayment and debt extinguishment costs, payments made for contingent consideration 
for a business combination, proceeds from the settlement of insurance proceeds, distributions received from equity method investees 
and separately identifiable cash flows and the application of the predominance principle. The Company adopted the guidance in 
ASU No. 2016-15 effective January 1, 2017. In connection with the adoption of the standard, the Company has applied the guidance 
retrospectively which resulted in an increase in cash flows from operations of $121 million and a decrease in cash flows from 
financing of $121 million on the statement of cash flows for the year ended December 31, 2016. There was no impact to the 
statement of cash flows for the year ended December 31, 2015, as a result of adoption.

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ASU 2016-09 — In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation (Topic 718), or 
ASU  No.  2016-09. The  amendments  focused  on  simplification  specifically  with  regard  to  share-based  payment  transactions, 
including income tax consequences, classification of awards as equity or liabilities and classification on the statement of cash 
flows. The Company adopted the guidance in ASU No. 2016-09 effective January 1, 2017, with no material adjustments recorded 
to the Company's consolidated financial statements.

By eliminating a large portion of its operations in the PJM market with the deconsolidation of GenOn, NRG concluded that 
GenOn meets the criteria for discontinued operations, as this represents a strategic shift in the markets in which NRG operates. 
As such, all prior period results for GenOn have been reclassified as discontinued operations while NRG will record all ongoing 
results of GenOn as a cost method investment, which was valued at zero at the date of deconsolidation.

Summarized results of discontinued operations were as follows:

Recent Accounting Developments - Guidance Not Yet Adopted

ASU  2017-07  —  In  March  2017,  the  FASB  issued ASU  No.  2017-07,  Compensation  -  Retirement  Benefits  (Topic  715), 
Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, or ASU No. 2017-07.   
Current GAAP does not indicate where the amount of net benefit cost should be presented in an entity’s income statement and 
does not require entities to disclose the amount of net benefit cost that is included in the income statement. The amendments of 
ASU  No.  2017-07  require  an  entity  to  report  the  service  cost  component  of  net  benefit  costs  in  the  same  line  item  as  other 
compensation  costs  arising  from  services  rendered  by  the  related  employees  during  the  applicable  service  period. The  other 
components of net benefit cost are required to be presented separately from the service cost component and outside the subtotal 
of income from operations. Further, ASU No. 2017-07 prescribes that only the service cost component of net benefit costs is 
eligible for capitalization. The Company adopted the amendments of ASU No. 2017-07 effective January 1, 2018. The adoption 
of ASU No. 2017-07 will not have a material impact on the Company's results of operations, cash flows, and statement of financial 
position.

ASU 2016-02 — In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), or Topic 842, with the objective 
to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance 
sheet and to improve financial reporting by expanding the related disclosures. The guidance in Topic 842 provides that a lessee 
that may have previously accounted for a lease as an operating lease under current GAAP should recognize the assets and liabilities 
that arise from a lease on the balance sheet. In addition, Topic 842 expands the required quantitative and qualitative disclosures 
with regards to lease arrangements. The Company will adopt the standard effective January 1, 2019, and expects to elect certain 
of the practical expedients permitted, including the expedient that permits the Company to retain its existing lease assessment and 
classification. The  Company  is  currently  working  through  an  adoption  plan  which  includes  the  evaluation  of  lease  contracts 
compared to the new standard. While the Company is currently evaluating the impact the new guidance will have on its financial 
position and results of operations, the Company expects to recognize lease liabilities and right of use assets. The extent of the 
increase to assets and liabilities associated with these amounts remains to be determined pending the Company’s review of its 
existing lease contracts and service contracts which may contain embedded leases. While this review is still in process, NRG 
believes the adoption of Topic 842 will have a material impact on its financial statements. The Company is continuing to monitor 
potential changes to Topic 842 that have been proposed by the FASB and will assess any necessary changes to the implementation 
process as the guidance is updated.

ASU 2014-09 — In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), or 
Topic 606, which was further amended through various updates issued by the FASB thereafter. The amendments of Topic 606 
completed the joint effort between the FASB and the IASB, to develop a common revenue standard for GAAP and IFRS, and to 
improve financial reporting. The guidance under Topic 606 provides that an entity should recognize revenue to depict the transfer 
of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to in 
exchange for the goods or services provided and establishes a five step model to be applied by an entity in evaluating its contracts 
with customers. The Company has also elected the practical expedient available under Topic 606 for measuring progress toward 
complete satisfaction of a performance obligation and for disclosure requirements of remaining performance obligations. The 
practical expedient allows an entity to recognize revenue in the amount to which the entity has the right to invoice such that the 
entity has a right to the consideration in an amount that corresponds directly with the value to the customer for performance 
completed to date by the entity. The Company adopted the standard effective January 1, 2018. The adoption of Topic 606 at the 
date of initial application, as prescribed under the modified retrospective transition method, will not have a material impact on 
the Company's financial statements. The adoption of Topic 606 also includes additional disclosure requirements beginning in the 
first quarter of 2018. Many of these disclosures are not substantially different than the Company's existing disclosures. Topic 606 
requires disclosure of disaggregated revenue amounts, which the Company expects would include types of operating revenues by 
business.

Note 3 — Discontinued Operations, Acquisitions and Dispositions   

Discontinued Operations

As described in Note 1, Nature of Business, on the Petition Date, the GenOn Entities filed voluntary petitions for relief under 
Chapter 11 of the Bankruptcy Code in the Bankruptcy Court. As a result of the bankruptcy filings, NRG concluded that it no longer 
controls GenOn as it is subject to the control of the Bankruptcy Court; and, accordingly, NRG no longer consolidates GenOn for 
financial reporting purposes. 

(In millions)

Operating revenues

Operating costs and expenses

Gain on sale of assets

Other expenses

(Loss)/Income from operations of discontinued components, before tax

Income tax expense

(Loss)/Income from operations of discontinued components

Interest income - affiliate

(Loss)/Income from operations of discontinued components, net of tax

Pre-tax loss on deconsolidation

Settlement consideration and services credit

Pension and post-retirement liability assumption

Other

Loss on disposal of discontinued components, net of tax

(Loss)/Income from discontinued operations, net of tax

Year ended December 31,

2017

2016

$

646
(702)
—
(98)
(154)
9
(163)
8
(155)
(208)
(289)
(131)
(6)
(634)
(789) $

1,862
(1,896)
294
(168)
92
11
81

11
92

—

—

—

—
—
92

$

$

The following table summarizes the major classes of assets and liabilities classified as discontinued operations as of 

December 31, 2016. As of June 14, 2017, NRG no longer consolidates GenOn for financial reporting purposes.

(In millions)

Cash and cash equivalents

Other current assets

Current assets - discontinued operations

Property, plant and equipment, net

Other non-current assets

Non-current assets - discontinued operations

Current portion of long term debt and capital leases

Other current liabilities

Current liabilities - discontinued operations

Long-term debt and capital leases

Out-of-market contracts

Other non-current liabilities

Non-current liabilities - discontinued operations

Chapter 11 Cases

December 31, 2016

1,034

885

1,919

2,543

418

2,961

704

506

1,210

2,050

811

323

3,184

$

$

Prior to the GenOn Entities' filing the Chapter 11 Cases, on June 12, 2017, NRG entered into a restructuring support and 
lock-up agreement, or the Restructuring Support Agreement, with the GenOn Entities and certain holders of the GenOn and GenOn 
Americas Generation Senior Notes, that provides for a restructuring and recapitalization of the GenOn Entities through a prearranged 
plan of reorganization. There is no assurance that the GenOn Entities' plan will be successfully implemented. The principal terms 
of the Restructuring Support Agreement are described further below.

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On September 18, 2017, and October 2, 2017, the GenOn Entities filed amendments to the plan of reorganization and the 
disclosure statement which primarily provided the GenOn Entities with the flexibility to complete sales of certain assets pursuant 
to the amended plan of reorganization and removed the GenOn Entities' requirement to conduct a rights offering in connection 
with the GenOn Entities' exit financing. 

and the letter of credit facility obtained in July 2017.

8)  NRG and GenOn have agreed to cooperate in good faith to maximize the value of certain development projects. 
Pursuant  to  this,  GenOn  made  a  one-time  payment  in  the  amount  of  $15  million  to  NRG  in  December  2017  as 
compensation for a purchase option with respect to the Canal 3 project. 

On October 31, 2017, the GenOn Entities announced that they entered into a Consent Agreement with certain holders of 
GenOn’s Senior Notes and GenOn Americas Generation's Senior Notes, collectively, the Consenting Holders, whereby the GenOn 
Entities and the Consenting Holders agreed to extend the milestones in the Restructuring Support Agreement, by which the plan 
of reorganization must become effective, or the Effective Date.  Specifically, the Consent Agreement extended the Effective Date 
milestone to June 30, 2018, or September 30, 2018, if regulatory approvals are still pending, or the Extended Effective Dates.

On December 12, 2017, the Bankruptcy Court entered an order confirming the plan of reorganization, and effective December 
12, 2017, GenOn and NRG entered into agreements concerning (i) timeline and transition, (ii) cooperation and co-development 
matters, (iii) post-employment and retiree health and welfare benefits and pension benefits, (iv) tax matters, and (v) intercompany 
balances and releases, consistent with the Restructuring Support Agreement, which among other things, provide for the transition 
of GenOn to a standalone enterprise, the resolution of substantial intercompany claims between GenOn and NRG, and the allocation 
of certain costs and liabilities between GenOn and NRG. On December 12, 2017, the Bankruptcy Court also entered an order 
giving effect to the Consent Agreement.

Forms of certain of the definitive documents that make up the plan supplement were filed with the Bankruptcy Court by the 
GenOn Entities and approved by the Bankruptcy Court in connection with the confirmation of the plan of reorganization. It is a 
condition precedent to the occurrence of the effective date of the plan of reorganization that the final version of the plan supplement 
be consistent with the Restructuring Support Agreement, in all material respects.

Restructuring Support Agreement

As described in Note 1, Nature of Business, NRG, GenOn and certain holders representing greater than 93% in aggregate 
principal amount of GenOn’s Senior Notes and certain holders representing greater than 93% in aggregate principal amount of 
GenOn Americas Generation’s Senior Notes entered into a Restructuring Support Agreement that provides for a restructuring and 
recapitalization of the GenOn Entities through a prearranged plan of reorganization that was approved by the Bankruptcy Court 
pursuant to an order of confirmation. Completion of the agreed upon terms is contingent upon certain milestones in the Restructuring 
Support Agreement and the satisfaction or waiver or certain conditions precedent. Certain principal terms of the Restructuring 
Support Agreement and the plan of reorganization are detailed below: 

1)  The dismissal of litigation and full releases from GenOn and GenOn Americas Generation in favor of NRG upon the 
earlier of the consummation of the GenOn Entities' plan of reorganization or the Settlement Agreement; a condition 
precedent to the consummation of the Settlement Agreement is a full release or indemnification in favor of NRG from 
any claims of GenOn Mid-Atlantic and REMA.

2)  NRG will provide settlement cash consideration to GenOn of $261.3 million, which will be paid in cash less any 
amounts owed to NRG under the intercompany secured revolving credit facility. As of December 31, 2017, GenOn 
owed NRG approximately $125 million under the intercompany secured revolving credit facility. See Note 21, Related 
Party Transactions, for further discussion of the intercompany secured revolving credit facility.

3)  NRG will consent to the cancellation of its interests in the equity of GenOn and be entitled to a worthless stock 
deduction, as further described in the tax matters agreement. The equity interests in the reorganized GenOn will be 
issued to the holders of the GenOn Senior Notes. 

4)  NRG will retain the pension liability, including payment of approximately $13 million of 2017 pension contributions, 
for GenOn employees for service provided prior to the completion of the reorganization, which was paid in September 
2017. GenOn’s pension liability as of December 31, 2017, was approximately $92 million. NRG will also retain the 
liability for GenOn’s post-employment and retiree health and welfare benefits, in an amount up to $25 million.
5)  The shared services agreement between NRG and GenOn was terminated and replaced as of the plan confirmation 
date with a transition services agreement. Under the transition services agreement, NRG will continue to provide the 
shared  services  and  other  separation  services  at  an  annualized  rate  of  $84  million,  subject  to  certain  credits  and 
adjustments. See Note 21, Related Party Transactions, for further discussion of the Services Agreement.

6)  NRG will provide a credit of $28 million to GenOn to apply against amounts owed under the transition services 
agreement. Any unused amount can be paid in cash at GenOn’s request. The credit was intended to reimburse GenOn 
for its payment of financing costs.

7)  NRG agreed to provide GenOn with a letter of credit facility during the pendency of the Chapter 11 Cases, which 
could be utilized for required letters of credit in lieu of the intercompany secured revolving credit facility.  GenOn 
can no longer utilize the intercompany secured revolving credit facility and, on July 27, 2017, the letter of credit 
facility was terminated, as GenOn had obtained a separate letter of credit facility with a third party financial institution. 
See Note 21, Related Party Transactions, for further discussion of the intercompany secured revolver credit facility 

Settlement Consideration 

NRG has determined that the payment of the settlement consideration is probable and has recorded a liability for the amount 
due of $261.3 million in accrued expenses and other current liabilities - affiliate with a corresponding loss from discontinued 
operations.  NRG expects to pay this amount net of amounts due from GenOn under the intercompany secured revolving credit 
facility, which is further described in Note 21, Related Party Transactions.

Pension Liability

NRG will retain the pension liability, including payment of approximately $13 million of 2017 pension contributions, which 
was paid in September 2017, for the GenOn employees for service provided prior to emergence from bankruptcy.  NRG determined 
that the retention of this liability is probable and has recorded the estimated accumulated pension benefit obligation as of December 
31, 2017 of $92 million in other non-current liabilities with a corresponding loss from discontinued operations. NRG's obligation 
for this liability will be revalued through and at GenOn's emergence from bankruptcy.

Services Agreement

In December 2017, in conjunction with the confirmation of the GenOn Entities' plan of reorganization, the Services Agreement 
was terminated and replaced by the transition services agreement. Under the transition services agreement, NRG will continue to 
provide shared services and other separation services to GenOn at an annualized rate of $84 million until June 30, 2018, which 
may be extended by GenOn through September 30, 2018.  NRG may provide additional separation services that are necessary for 
or reasonably related to the operation of GenOn's business after such date, subject to NRG's prior written consent, not to be 
unreasonably withheld.

Beginning on June 14, 2017, and through December 2017, NRG recorded amounts earned for shared services of approximately 
$5 million per month. In December 2017, NRG provided GenOn with a $3.5 million credit for services provided under the transition 
services agreement and began recording amounts earned for shared services of approximately $7 million per month. NRG has 
also agreed to provide GenOn with a credit of $28 million against amounts owed under the transition services agreement.  Any 
unused amount can be paid in cash at GenOn’s request, subject to the terms and conditions of the transition services agreement.  
As a result, NRG has concluded that the liability for this credit is probable and has recorded a payable to GenOn for $28 million
in accrued expenses and other current liabilities - affiliate with a corresponding loss from discontinued operations. 

Commercial Operations

For pre-disposal periods, NRG provided GenOn with services as described in Note 21, Related Party Transactions. Under 
intercompany agreements, NRG Power Marketing LLC has entered into physical and financial intercompany commodity and 
hedging transactions with GenOn and certain of its subsidiaries. Subject to applicable collateral thresholds, these arrangements 
may provide for the bilateral exchange of credit support based upon market exposure and potential market movements. The terms 
and conditions of the agreements are generally consistent with industry practices and other third party arrangements.  For current 
and pre-disposal periods, revenue and expense associated with these transactions is recorded in continuing operations. 

GenOn Debt

As of June 14, 2017, the GenOn Senior Notes and GenOn Americas Generation Senior Notes, which totaled approximately 
$2.5 billion, were deconsolidated from NRG's consolidated financial statements.  The filing of the Chapter 11 Cases constitutes 
an event of default under the following debt instruments of GenOn:

1)  The intercompany secured revolving credit facility with NRG;
2)  The indenture governing the GenOn 7.875% Senior Notes due 2017 (as amended or supplemented from time to time);
3)  The indenture governing the GenOn 9.500% Notes due 2018 (as amended or supplemented from time to time);
4)  The indenture governing the GenOn 9.875% Notes due 2020 (as amended or supplemented from time to time);
5)  The indenture governing the GenOn Americas Generation 8.50% Senior Notes due 2021 (as amended or supplemented 

from time to time); and

6)  The indenture governing the GenOn Americas Generation 9.125% Senior Notes due 2031 (as amended or supplemented 

from time to time).

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Dispositions

2016 Disposition of Majority Interest in EVgo

On June 17, 2016, the Company completed the sale of a majority interest in its EVgo business to Vision Ridge Partners for 
total consideration of approximately $39 million, including $17 million in cash received, which is net of $2.5 million in working 
capital adjustments, $15 million contributed as capital to the EVgo business and $7 million of future contributions by Vision Ridge 
Partners, all of which were determined based on forecasted cash requirements to operate the business in future periods.  In addition, 
the Company has future earnout potential of up to $70 million based on future profitability targets. NRG retained its original 
financial obligation of $102.5 million under its agreement with the CPUC whereby EVgo will build at least 200 public fast charging 
Freedom Station sites and perform the associated work to prepare 10,000 commercial and multi-family parking spaces for electric 
vehicle charging in California. As part of the sale, NRG has contracted with EVgo to continue to build the remaining required 
Freedom Stations and commercial and multi-family parking spaces for electric vehicle charging required under this obligation 
and EVgo will be directly reimbursed by NRG for the costs. As a result of the sale, the Company recorded a loss on sale of $78 
million during the second quarter of 2016, which reflects the loss on the sale of the equity interest of $27 million and the accrual 
of NRG's remaining obligation under its agreement with the CPUC of $56 million, of which $25 million remains as of December 
31, 2017.  On February 22, 2017, the Company and CPUC entered into a second amendment to the agreement which extended 
the  operating  period  commitment  for  the  Freedom  Stations  to  December  5,  2020. As  of  December  31,  2017,  the  Company's 
remaining 35% interest in EVgo of $1 million was accounted for as an equity method investment.  

2016 Rockford Disposition

On May 12, 2016, the Company entered into an agreement with RA Generation, LLC to sell 100% of its interests in the 
Rockford I and Rockford II generating stations, or Rockford, for cash consideration of $55 million, subject to adjustments for 
working capital and the results of the PJM 2019/2020 base residual auction.  Rockford is a 450-MW natural gas facility located 
in Rockford, Illinois. The transaction triggered an indicator of impairment as the sales price was less than the carrying amount of 
the assets and, as a result, the assets were considered to be impaired.  The Company measured the impairment loss as the difference 
between the carrying amount of the assets and the agreed-upon sales price.  The Company recorded an impairment loss of $17 
million during the quarter ended June 30, 2016 to reduce the carrying amount of the assets held for sale to the fair market value.  
On July 12, 2016, the Company completed the sale of Rockford for cash proceeds of $56 million, including $1 million in adjustments 
for the PJM base residual auction results.  For further discussion on this impairment, refer to Note 10, Asset Impairments.

2015 Disposition of Altenex

On December 31, 2015, the Company completed the sale of its 32% interest in Altenex, LLC to Edison Energy, LLC and 
Edison Energy NewCo 2, LLC for cash consideration of $26 million.  The Company had accounted for its investment in Altenex 
as an equity method investment and recognized a loss of $14 million as a result of the transactions within the Company's consolidated 
statements of operations.

Acquisitions

2016 Utility-Scale Solar and Wind Acquisition 

On November 2, 2016, the Company acquired equity interests in a tax equity portfolio from SunEdison, located in Utah, 
comprised of 530 MW of mechanically-complete solar assets, of which NRG’s net interest based on cash to be distributed is 265
MW, for upfront cash consideration of $111 million.  In connection with the acquisition, the Company assumed non-recourse debt 
of $222 million.  The Company also borrowed additional amounts of $65 million during the fourth quarter of 2016, as described 
in Note 12, Debt and Capital Leases, which effectively reduced the Company's use of liquidity related to the acquisition. The 
Company does not have a controlling interest in the tax equity portfolio and, accordingly, its interest is recorded as an equity 
method investment. The purchase price was allocated to the equity method investment balance of approximately $328 million, 
current assets of $5 million and the assumed non-recourse debt of $222 million. The assets reached commercial operations during 
the fourth quarter of 2016 and have 20-year PPAs with PacifiCorp. 

The Company acquired a 110-MW portfolio of construction-ready and 71 MW of development solar assets in Hawaii from 
SunEdison for upfront cash consideration of $2 million on October 3, 2016, and a 154-MW construction-ready solar project in 
Texas for upfront cash consideration of $11 million on November 9, 2016.  

In addition to the total $124 million in upfront cash consideration paid for the above acquisitions, the Company expects to 
make an estimated $59 million in additional payments contingent upon future development milestones, of which $20 million was 
paid as of December 31, 2017.

2016 Solar Distributed Generation Acquisition  

On October 3, 2016, the Company acquired a 29-MW portfolio of mechanically-complete and construction-ready distributed 
generation solar assets from SunEdison for cash consideration of approximately $67 million excluding post-closing adjustments 
which reduced the purchase price by $5 million.  Subsequent to the acquisition, the Company sold these assets into a tax-equity 
financed portfolio within the DGPV Holdco partnership between NRG and NRG Yield, Inc. The purchase price was allocated to 
$47 million in construction in progress and $15 million in intangible assets.

2015 Acquisition of Desert Sunlight

On June 29, 2015, NRG Yield, Inc., through its subsidiary NRG Yield Operating LLC, acquired 25% of the membership 
interest in Desert Sunlight Investment Holdings, LLC, which owns two solar photovoltaic facilities that total 550 MW located in 
Desert Center, California from EFS Desert Sun, LLC, an affiliate of GE Energy Financial Services, for a purchase price of $285 
million.  The Company accounts for its 25% investment as an equity method investment.

Transfers of Assets under Common Control

On November 1, 2017, NRG completed the sale of a 38-MW solar portfolio primarily comprised of assets from SPP funds, 
in addition to other projects developed by NRG, to NRG Yield, Inc. for cash consideration of $71 million, plus $3 million in 
working capital adjustments.

On August 1, 2017, NRG closed on the sale of its remaining 25% interest in NRG Wind TE Holdco, a portfolio of 12 wind 
projects, to NRG Yield, Inc. for total cash consideration of $44 million, including working capital adjustment of $3 million. The 
transaction also includes potential additional payments to NRG dependent upon actual energy prices for merchant periods beginning 
in 2027. 

On March 27, 2017, the Company sold to NRG Yield, Inc.: (i) a 16% interest in the Agua Caliente solar project, representing 
ownership of approximately 46 net MW of capacity and (ii) NRG's interests in seven utility-scale solar projects located in Utah 
representing 265 net MW of capacity, which have reached commercial operations. NRG Yield, Inc. paid cash consideration of 
$130 million, plus $1 million in working capital adjustments, and assumed non-recourse debt of approximately $328 million.

On September 1, 2016, the Company completed the sale of its remaining 51.05% interest in the CVSR project to NRG Yield, 
Inc. for total cash consideration of $78.5 million, plus an immaterial working capital adjustment. In addition, NRG Yield, Inc. 
assumed non-recourse project level debt of $496 million.

On November 3, 2015, the Company sold 75% of the Class B interests of NRG Wind TE Holdco, which owns a portfolio 
of 12 wind facilities totaling 814 net MW, to NRG Yield, Inc.  NRG Yield, Inc. paid total cash consideration of $209 million, 
subject to working capital adjustments.  NRG Yield, Inc. is responsible for its pro-rata share of non-recourse project debt of $193 
million and noncontrolling interest associated with a tax equity structure of $159 million (as of the acquisition date).  In February 
2016, the Company made a final working capital payment of $2 million to NRG Yield, Inc. reducing total cash consideration to 
$207 million.

On January 2, 2015, the Company sold the following facilities to NRG Yield, Inc.: Walnut Creek, the Tapestry projects 
(Buffalo Bear, Pinnacle and Taloga) and Laredo Ridge.  NRG Yield, Inc. paid total cash consideration of $489 million, including 
$9 million of working capital adjustments, plus assumed project level debt of $737 million. 

The above sales were recorded as transfers of entities under common control and the related assets were transferred at their 

carrying value.

148

149

 
 
 
 
 
 
Note 4 — Fair Value of Financial Instruments 

Recurring Fair Value Measurements

For cash and cash equivalents, funds deposited by counterparties, accounts and other receivables, accounts payable, restricted 
cash, and cash collateral posted and received in support of energy risk management activities, the carrying amount approximates 
fair value because of the short-term maturity of those instruments and are classified as Level 1 within the fair value hierarchy. 

Debt securities, equity securities, and trust fund investments, which are comprised of various U.S. debt and equity securities, 

and derivative assets and liabilities, are carried at fair market value.  

The following tables present assets and liabilities measured and recorded at fair value on the Company's consolidated balance 

The estimated carrying values and fair values of the Company's recorded financial instruments not carried at fair market 

sheets on a recurring basis and their level within the fair value hierarchy:

value are as follows:

Assets
Notes receivable (a)
Liabilities
Long-term debt, including current portion (b)

As of December 31,

2017

2016

Carrying Amount

Fair Value

Carrying Amount

Fair Value

(In millions)

$

$

16

16,603

$

$

15

16,894

$

$

34

16,655

$

$

34

16,620

(a)  Includes the current portion of notes receivable which is recorded in prepayments and other current assets on the Company's consolidated balance sheets.
(b)  Excludes deferred financing costs, which are recorded as a reduction to long-term debt on the Company's consolidated balance sheets.

The fair value of the Company's publicly-traded long-term debt is based on quoted market prices and is classified as Level 
2 within the fair value hierarchy.  The fair value of debt securities, non-publicly traded long-term debt, and certain notes receivable 
of the Company are based on expected future cash flows discounted at market interest rates or current interest rates for similar 
instruments with equivalent credit quality and are classified as Level 3 within the fair value hierarchy. The following table presents 
the level within the fair value hierarchy for long-term debt, including current portion as of December 31, 2017 and 2016:

Long-term debt, including current portion

$

8,934

$

(In millions)
$

7,960

9,205

$

7,415

As of December 31, 2017

As of December 31, 2016

Level 2

Level 3

Level 2

Level 3

Fair Value Accounting under ASC 820

ASC 820 establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into 

three levels as follows:

•  Level 1 — quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability 
to access as of the measurement date. NRG's financial assets and liabilities utilizing Level 1 inputs include active exchange-
traded securities, energy derivatives, and trust fund investments.

•  Level 2 — inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability 
or indirectly observable through corroboration with observable market data. NRG's financial assets and liabilities utilizing 
Level 2 inputs include fixed income securities, exchange-based derivatives, and over the counter derivatives such as 
swaps, options and forward contracts.

•  Level 3 — unobservable inputs for the asset or liability only used when there is little, if any, market activity for the asset 
or liability at the measurement date. NRG's financial assets and liabilities utilizing Level 3 inputs include infrequently-
traded, non-exchange-based derivatives and commingled investment funds, and are measured using present value pricing 
models.

In accordance with ASC 820, the Company determines the level in the fair value hierarchy within which each fair value 

measurement in its entirety falls, based on the lowest level input that is significant to the fair value measurement in its entirety.

Investments in securities (classified within other non-current assets):

Debt securities
Available-for-sale securities

Nuclear trust fund investments:
Cash and cash equivalents
U.S. government and federal agency obligations
Federal agency mortgage-backed securities
Commercial mortgage-backed securities
Corporate debt securities
Equity securities
Foreign government fixed income securities

Other trust fund investments:

U.S. government and federal agency obligations

Derivative assets:

Commodity contracts
Interest rate contracts

Measured using net asset value practical expedient:

Equity securities

Total assets
Derivative liabilities:

Commodity contracts
Interest rate contracts

Total liabilities

As of December 31, 2017

Fair Value

Total

Level 1

Level 2

Level 3

(In millions)

$

$

19
3

— $
3

— $
—

47
43
82
14
99
334
5

1

745
53

68
1,513

693
59
752

$

$

$

$

$

$

45
42
—
—
—
334
—

1

191
—

616

257
—
257

$

$

$

2
1
82
14
99
—
5

—

509
53

765

359
59
418

$

$

$

19
—

—
—
—
—
—
—
—

—

45
—

64

77
—
77

150

151

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Investments in securities (classified within other non-current assets):

Debt securities
Available-for-sale securities

Nuclear trust fund investments:
Cash and cash equivalents
U.S. government and federal agency obligations
Federal agency mortgage-backed securities
Commercial mortgage-backed securities
Corporate debt securities
Equity securities
Foreign government fixed income securities

Other trust fund investments:

U.S. government and federal agency obligations

Derivative assets:

Commodity contracts
Interest rate contracts

Measured using net asset value practical expedient:

Equity securities

Total assets
Derivative liabilities:

Commodity contracts
Interest rate contracts

Total liabilities

As of December 31, 2016

Fair Value

Total

Level 1

Level 2

Level 3

$

$

17
10

— $
10

— $
—

25
73
62
17
84
292
3

1

1,199
49

54
1,886

1,288
88
1,376

$

$

$

$

$

$

25
72
—
—
—
292
—

1

560
—

960

494
—
494

$

$

$

—
1
62
17
84
—
3

—

549
49

765

636
88
724

17
—

—
—
—
—
—
—
—

—

90
—

$

$

$

107

158
—
158

There have been no transfers during the year ended December 31, 2017 between Levels 1 and 2.  The following tables 
reconcile, for the years ended December 31, 2017 and 2016, the beginning and ending balances for financial instruments that are 
recognized at fair value in the consolidated financial statements at least annually using significant unobservable inputs:

Beginning balance as of January 1, 2017

Total gains/(losses) realized/unrealized:

Included in earnings
Included in nuclear decommissioning obligations

Purchases
Contracts reclassified to held-for-sale
Transfers into Level 3 (b)
Transfers out of Level 3 (b)
Ending balance as of December 31, 2017
Gains for the period included in earnings attributable to the change in

unrealized gains or losses relating to assets or liabilities still held as of
December 31, 2017

$

$

(a)  Consists of derivatives assets and liabilities, net.

For the Year Ended December 31, 2017

Fair Value Measurement Using Significant
Unobservable Inputs (Level 3)

Debt
Securities

Derivatives (a)

(In millions)

Total

$

17

$

(68) $

2
—
—
—
—
—
19

$

43
—
(23)
4
(1)
13
(32) $

(51)

45
—
(23)
4
(1)
13
(13)

2

$

6

$

8  

Beginning balance as of January 1, 2016

$

17

$

54

$

(22) $

For the Year Ended December 31, 2016

Fair Value Measurement Using Significant Unobservable Inputs
(Level 3)

Debt
Securities

Trust Fund
Investments (c)

Derivatives (a)

Total

(In millions)

Total gains/(losses) realized/unrealized:

Included in earnings

Included in nuclear decommissioning obligations

Purchases
Transfers into Level 3 (b)
 Transfer out of Level 3 (b)

Ending balance as of December 31, 2016

Losses for the period included in earnings attributable to the
change in unrealized gains or losses relating to assets or
liabilities still held as of December 31, 2016

$

$

—

—

—

—

—

17

$

—
(1)
1

—
(54)
— $

2

—
(29)
(18)
(1)
(68) $

49

2
(1)
(28)
(18)
(55)
(51)

— $

— $

(13) $

(13)

(a)  Consists of derivatives assets and liabilities, net.
(b)  Transfers into/out of Level 3 are related to the availability of external broker quotes, and are valued as of the end of the reporting period.  All transfers 

into/out of Level 3 are from/to Level 2.

(c)  All Trust Fund Investments were considered transferred out of Level 3 as these investments are measured using net asset value as a practical expedient 

and are thus classified outside of the fair value hierarchy as of December 31, 2016.

Realized and unrealized gains and losses included in earnings that are related to the energy derivatives are recorded in 

operating revenues and cost of operations.

Non-derivative fair value measurements

NRG's investments in debt securities are classified as Level 3 and consist of non-traded debt instruments that are valued 

based on third-party market value assessments.

The trust fund investments are held primarily to satisfy NRG's nuclear decommissioning obligations.  These trust fund 
investments hold debt and equity securities directly and equity securities indirectly through commingled funds.  The fair values 
of equity securities held directly by the trust funds are based on quoted prices in active markets and are categorized in Level 1.  
In addition, U.S. government and federal agency obligations are categorized as Level 1 because they trade in a highly liquid and 
transparent market.  The fair values of corporate debt securities are based on evaluated prices that reflect observable market 
information, such as actual trade information of similar securities, adjusted for observable differences and are categorized in 
Level 2.  Certain equity securities, classified as commingled funds, are analogous to mutual funds, are maintained by investment 
companies, and hold certain investments in accordance with a stated set of fund objectives.  The fair value of the equity securities 
classified as commingled funds are based on net asset values per fund share (the unit of account), derived from the quoted prices 
in active markets of the underlying equity securities.  However, because the shares in the commingled funds are not publicly 
quoted, not traded in an active market and are subject to certain restrictions regarding their purchase and sale, the commingled 
funds are categorized in Level 3.  See also Note 6, Nuclear Decommissioning Trust Fund.

(b)  Transfers into/out of Level 3 are related to the availability of external broker quotes, and are valued as of the end of the reporting period.  All transfers 

into/out of Level 3 are from/to Level 2.

152

153

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Derivative fair value measurements

A portion of the Company's contracts are exchange-traded contracts with readily available quoted market prices.  A majority 
of NRG's contracts are non-exchange-traded contracts valued using prices provided by external sources, primarily price quotations 
available through brokers or over-the-counter and on-line exchanges.  For the majority of NRG markets, the Company receives 
quotes from multiple sources.  To the extent that NRG receives multiple quotes, the Company's prices reflect the average of the 
bid-ask mid-point prices obtained from all sources that NRG believes provide the most liquid market for the commodity. If the 
Company receives one quote, then the mid-point of the bid-ask spread for that quote is used.  The terms for which such price 
information is available vary by commodity, region and product.  A significant portion of the fair value of the Company's derivative 
portfolio is based on price quotes from brokers in active markets who regularly facilitate those transactions and the Company 
believes such price quotes are executable.  The Company does not use third party sources that derive price based on proprietary 
models or market surveys.  The remainder of the assets and liabilities represents contracts for which external sources or observable 
market quotes are not available. These contracts are valued based on various valuation techniques including but not limited to 
internal  models  based  on  a  fundamental  analysis  of  the  market  and  extrapolation  of  observable  market  data  with  similar 
characteristics.  Contracts valued with prices provided by models and other valuation techniques make up 6% of derivative assets 
and 10% of derivative liabilities.  The fair value of each contract is discounted using a risk free interest rate.  In addition, the 
Company applies a credit reserve to reflect credit risk, which for interest rate swaps is calculated utilizing the bilateral method 
based on published default probabilities.  For commodities, to the extent that NRG's net exposure under a specific master agreement 
is an asset, the Company uses the counterparty's default swap rate.  If the exposure under a specific master agreement is a liability, 
the Company uses NRG's default swap rate.  For interest rate swaps and commodities, the credit reserve is added to the discounted 
fair value to reflect the exit price that a market participant would be willing to receive to assume NRG's liabilities or that a market 
participant would be willing to pay for NRG's assets.  As of December 31, 2017, the credit reserve resulted in no change in fair 
value in operating revenue and cost of operations.  As of December 31, 2016 the credit reserve resulted in a $10 million decrease 
in fair value in operating revenue and cost of operations.

The fair values in each category reflect the level of forward prices and volatility factors as of December 31, 2017, and may 
change as a result of changes in these factors. Management uses its best estimates to determine the fair value of commodity and 
derivative contracts NRG holds and sells. These estimates consider various factors including closing exchange and over-the-
counter price quotations, time value, volatility factors and credit exposure. It is possible, however, that future market prices could 
vary from those used in recording assets and liabilities from energy marketing and trading activities and such variations could be 
material.

NRG's significant positions classified as Level 3 include physical and financial power executed in illiquid markets as well 
as financial transmission rights, or FTRs. The significant unobservable inputs used in developing fair value include illiquid power 
location pricing which is derived as a basis to liquid locations. The basis spread is based on observable market data when available 
or derived from historic prices and forward market prices from similar observable markets when not available. For FTRs, NRG 
uses the most recent auction prices to derive the fair value. 

The following tables quantify the significant unobservable inputs used in developing the fair value of the Company's Level 

3 positions as of December 31, 2017 and 2016:

Significant Unobservable Inputs

December 31, 2017

Fair Value

Input/Range

Power Contracts

FTRs

Assets

Liabilities

(In millions)

$

$

34

$

11

45

$

65

12

77

Valuation
Technique

Significant
Unobservable
Input

Low

High

Weighted
Average

Discounted
Cash Flow

Discounted
Cash Flow

Forward Market
Price (per MWh)

Auction Prices (per
MWh)

$

10

$

142

$

(28)

46

33

—

Significant Unobservable Inputs

December 31, 2016

Fair Value

Input/Range

Power Contracts

FTRs

Assets

Liabilities

(In millions)

$

$

39

$

51

90

$

108

50

158

Valuation
Technique

Significant
Unobservable
Input

Low

High

Weighted
Average

Discounted
Cash Flow
Discounted
Cash Flow

Forward Market
Price (per MWh)
Auction Prices (per
MWh)

$

11

$

104

$

(22)

17

31

—

   The following table provides sensitivity of fair value measurements to increases/(decreases) in significant unobservable 

inputs as of December 31, 2017 and 2016:

Significant Unobservable Input

Forward Market Price Power

Forward Market Price Power

FTR Prices

FTR Prices

Position
Buy

Sell

Buy

Sell

Change In Input
Increase/(Decrease)

Increase/(Decrease)

Increase/(Decrease)

Increase/(Decrease)

Impact on Fair Value
Measurement

Higher/(Lower)

Lower/(Higher)

Higher/(Lower)

Lower/(Higher)

Under the guidance of ASC 815, entities may choose to offset cash collateral posted or received against the fair value of 
derivative positions executed with the same counterparties under the same master netting agreements.  The Company has chosen 
not to offset positions as defined in ASC 815.  As of December 31, 2017, the Company recorded $171 million of cash collateral 
posted and $37 million of cash collateral received on its balance sheet.

Concentration of Credit Risk

In addition to the credit risk discussion as disclosed in Note 2, Summary of Significant Accounting Policies, the following 
item is a discussion of the concentration of credit risk for the Company's financial instruments. Credit risk relates to the risk of 
loss resulting from non-performance or non-payment by counterparties pursuant to the terms of their contractual obligations.  The 
Company monitors and manages credit risk through credit policies that include: (i) an established credit approval process; (ii) a 
daily monitoring of counterparties' credit limits; (iii) the use of credit mitigation measures such as margin, collateral, prepayment 
arrangements, or volumetric limits; (iv) the use of payment netting agreements; and (v) the use of master netting agreements that 
allow for the netting of positive and negative exposures of various contracts associated with a single counterparty. Risks surrounding 
counterparty performance and credit could ultimately impact the amount and timing of expected cash flows. The Company seeks 
to mitigate counterparty risk by having a diversified portfolio of counterparties. The Company also has credit protection within 
various agreements to call on additional collateral support if and when necessary. Cash margin is collected and held at the Company 
to cover the credit risk of the counterparty until positions settle.

154

155

 
 
 
 
 
 
Counterparty Credit Risk

Retail Customer Credit Risk

As  of  December 31,  2017,  counterparty  credit  exposure,  excluding  credit  exposure  from  RTOs,  ISOs,  and  registered 
commodity exchanges and certain long-term agreements, was $220 million and NRG held collateral (cash and letters of credit) 
against those positions of $30 million, resulting in a net exposure of $196 million.  Approximately 73% of the Company's exposure 
before collateral is expected to roll off by the end of 2019. Counterparty credit exposure is valued through observable market 
quotes and discounted at a risk free interest rate.  The following tables highlight net counterparty credit exposure by industry sector 
and by counterparty credit quality.  Net counterparty credit exposure is defined as the aggregate net asset position for NRG with 
counterparties where netting is permitted under the enabling agreement and includes all cash flow, mark-to-market and NPNS, 
and non-derivative transactions.  The exposure is shown net of collateral held, and includes amounts net of receivables or payables.

Category
Financial institutions
Utilities, energy merchants, marketers and other

Total

Category
Investment grade
Non-Investment grade/Non-Rated

Total

Net Exposure (a) (b)
(% of Total)

14%
86
100%

Net Exposure (a) (b)
(% of Total)

69%
31
100%

(a)  Counterparty credit exposure excludes uranium and coal transportation contracts because of the unavailability of market prices.
(b)  The figures in the tables above exclude potential counterparty credit exposure related to RTOs, ISOs, registered commodity exchanges and certain long 

term contracts.

NRG has counterparty credit risk exposure to certain counterparties, each of which represent more than 10% of total net 
exposure discussed above.  The aggregate of such counterparties' exposure was $37 million as of December 31, 2017.  Changes 
in  hedge  positions  and  market  prices  will  affect  credit  exposure  and  counterparty  concentration.  Given  the  credit  quality, 
diversification and term of the exposure in the portfolio, NRG does not anticipate a material impact on the Company's financial 
position or results of operations from nonperformance by any of NRG's counterparties.

RTOs and ISOs

The Company participates in the organized markets of CAISO, ERCOT, ISO-NE, MISO, NYISO and PJM, known as RTOs 
or ISOs. Trading in these markets is approved by FERC, or in the case of ERCOT, approved by the PUCT and includes credit 
policies that, under certain circumstances, require that losses arising from the default of one member on spot market transactions 
be shared by the remaining participants. As a result, the counterparty credit risk to these markets is limited to NRG’s share of 
overall market and are excluded from the above exposures.

Exchange Traded Transactions 

The Company enters into commodity transactions on registered exchanges, notably ICE and NYMEX. These clearinghouses 
act as the counterparty and transactions are subject to extensive collateral and margining requirements. As a result, these commodity 
transactions have limited counterparty credit risk.

Long Term Contracts

Counterparty credit exposure described above excludes credit risk exposure under certain long term agreements, including 
California tolling agreements, Gulf Coast load obligations, wind and solar PPAs.  As external sources or observable market quotes 
are not available to estimate such exposure, the Company values these contracts based on various techniques including, but not 
limited to, internal models based on a fundamental analysis of the market and extrapolation of observable market data with similar 
characteristics.  Based on these valuation techniques, as of December 31, 2017, aggregate credit risk exposure managed by NRG 
to these counterparties was approximately $4.1 billion, including $2.6 billion related to assets of NRG Yield, Inc., for the next 
five years.  This amount excludes potential credit exposures for projects with long term PPAs that have not reached commercial 
operations.  The majority of these power contracts are with utilities or public power entities with strong credit quality and public 
utility commission or other regulatory support.  However, such regulated utility counterparties can be impacted by changes in 
government regulations, which NRG is unable to predict. 

The Company is exposed to retail credit risk through the Company's retail electricity providers, which serve C&I customers 
and the Mass market. Retail credit risk results in losses when a customer fails to pay for services rendered. The losses may result 
from both nonpayment of customer accounts receivable and the loss of in-the-money forward value. The Company manages retail 
credit risk through the use of established credit policies that include monitoring of the portfolio and the use of credit mitigation 
measures such as deposits or prepayment arrangements.

As of December 31, 2017, the Company's retail customer credit exposure to C&I and Mass customers was diversified across 
many customers and various industries, as well as government entities. The Company is also subject to risk with respect to its 
residential solar customers. The Company's bad debt expense was $68 million, $48 million, and $64 million for the years ending 
December 31, 2017, 2016, and 2015, respectively.  Current economic conditions may affect the Company's customers' ability to 
pay bills in a timely manner, which could increase customer delinquencies and may lead to an increase in bad debt expense.

Note 5 — Accounting for Derivative Instruments and Hedging Activities 

ASC 815 requires the Company to recognize all derivative instruments on the balance sheet as either assets or liabilities and 
to measure them at fair value each reporting period unless they qualify for a NPNS exception.  The Company may elect to designate 
certain derivatives as cash flow hedges, if certain conditions are met, and defer the change in fair value of the derivatives to 
accumulated OCI, until the hedged transactions occur and are recognized in earnings. 

For derivatives that are not designated as cash flow hedges or do not qualify for hedge accounting treatment, the changes 
in the fair value will be immediately recognized in earnings.  Certain derivative instruments may qualify for the NPNS exception 
and are therefore exempt from fair value accounting treatment.  ASC 815 applies to NRG's energy related commodity contracts, 
interest rate swaps, and equity contracts.

As the Company engages principally in the trading and marketing of its generation assets and retail businesses, some of 
NRG's commercial activities qualify for hedge accounting.  In order for the generation assets to qualify, the physical generation 
and sale of electricity should be highly probable at inception of the trade and throughout the period it is held, as is the case with 
the Company's baseload plants.  For this reason, trades in support of NRG's baseload units may qualify for NPNS or cash flow 
hedge accounting treatment, and trades in support of NRG's peaking units' asset optimization will generally not qualify for hedge 
accounting treatment, with any changes in fair value likely to be reflected on a mark-to-market basis in the statement of operations.  
Most of the retail load contracts either qualify for the NPNS exception or fail to meet the criteria for a derivative and the majority 
of the retail supply and fuels supply contracts are recorded under mark-to-market accounting.  All of NRG's hedging and trading 
activities are subject to limits within the Company's Risk Management Policy.

Energy-Related Commodities

To manage the commodity price risk associated with the Company's competitive supply activities and the price risk associated 
with wholesale power sales from the Company's electric generation facilities and retail power sales from NRG's retail businesses, 
NRG enters into a variety of derivative and non-derivative hedging instruments, utilizing the following:

• 

• 

• 

Forward contracts, which commit NRG to purchase or sell energy commodities or purchase fuels in the future;

Futures contracts, which are exchange-traded standardized commitments to purchase or sell a commodity or financial 
instrument;

Swap agreements, which require payments to or from counterparties based upon the differential between two prices for 
a predetermined contractual, or notional, quantity;

•  Option contracts, which convey to the option holder the right but not the obligation to purchase or sell a commodity;

•  Extendable swaps, which include a combination of swaps and options executed simultaneously for different periods.  This 
combination of instruments allows NRG to sell out-year volatility through call options in exchange for natural gas swaps 
with fixed prices in excess of the market price for natural gas at that time.  The above-market swap combined with its 
later-year call option are priced in aggregate at market at the trade's inception; and

•  Weather derivative products used to mitigate a portion of lost revenue due to weather.

The objectives for entering into derivative contracts designated as hedges include:

• 

• 

• 

Fixing the price for a portion of anticipated future electricity sales that provides an acceptable return on the Company's 
electric generation operations;

Fixing the price of a portion of anticipated fuel purchases for the operation of the Company's power plants; and

Fixing the price of a portion of anticipated power purchases for the Company's retail sales.

156

157

 
 
 
 
 
 
NRG's trading and hedging activities are subject to limits within the Company's Risk Management Policy. These contracts 
are recognized on the balance sheet at fair value and changes in the fair value of these derivative financial instruments are recognized 
in earnings.

As of December 31, 2017, NRG's derivative assets and liabilities consisted primarily of the following:

• 

• 

Forward and financial contracts for the purchase/sale of electricity and related products economically hedging NRG's 
generation assets' forecasted output or NRG's retail load obligations through 2031;

Forward and financial contracts for the purchase of fuel commodities relating to the forecasted usage of NRG's generation 
assets through 2019; and

•  Other energy derivatives instruments extending through 2024.

Also, as of December 31, 2017, NRG had other energy-related contracts that did not meet the definition of a derivative 

instrument or qualified for the NPNS exception and were therefore exempt from fair value accounting treatment as follows:

•  Load-following forward electric sale contracts extending through 2026;

• 

Power tolling contracts through 2043;

•  Coal purchase contracts through 2021;

• 

Power transmission contracts through 2025;

•  Natural gas transportation contracts and storage agreements through 2030; and

•  Coal transportation contracts through 2029.

Interest Rate Swaps

NRG is exposed to changes in interest rates through the Company's issuance of variable rate debt. In order to manage the 
Company's interest rate risk, NRG enters into interest rate swap agreements.  As of December 31, 2017, NRG had interest rate 
derivative instruments on recourse debt extending through 2021 and non-recourse debt extending through 2041, some of which 
are designated as cash flow hedges.

Volumetric Underlying Derivative Transactions

The following table summarizes the net notional volume buy/(sell) of NRG's open derivative transactions broken out by 
commodity, excluding those derivatives that qualified for the NPNS exception as of December 31, 2017 and 2016. Option contracts 
are reflected using delta volume.   Delta volume equals the notional volume of an option adjusted for the probability that the option 
will be in-the-money at its expiration date.

Commodity

Units

Short Ton
Short Ton

Emissions
Coal
Natural Gas MMBtu
Oil
Power
Capacity
Interest
Equity

Barrel
MWh
MW/Day
Dollars
Shares

Total Volume

December 31,
2017

December 31,
2016

(In millions)

1
21
(17)
—
14
(1)
3,876
1

$

—
35
(53)
1
7
(1)
3,429
1

$

Fair Value of Derivative Instruments

The following table summarizes the fair value within the derivative instrument valuation on the balance sheet:

(In millions)
Derivatives Designated as Cash Flow or Fair Value 

Hedges:

Interest rate contracts current

Interest rate contracts long-term
Total Derivatives Designated as Cash Flow or Fair

Value Hedges

Derivatives Not Designated as Cash Flow or Fair 

Value Hedges:

Interest rate contracts current

Interest rate contracts long-term

Commodity contracts current

Commodity contracts long-term
Total Derivatives Not Designated as Cash Flow or Fair

Value Hedges

Total Derivatives

$

$

Fair Value

Derivative Assets

Derivative Liabilities

December 31,
2017

December 31,
2016

December 31,
2017

December 31,
2016

1

11

12

9

32

616

129

786

798

$

— $

12

12

—

37

1,067

132

1,236

$

1,248

$

5

11

16

15

28

535

158

736

752

$

$

28

41

69

7

12

1,057

231

1,307

1,376

The Company has elected to present derivative assets and liabilities on the balance sheet on a trade-by-trade basis and 
does not offset amounts at the counterparty master agreement level.  In addition, collateral received or paid on the Company's 
derivative assets or liabilities are recorded on a separate line item on the balance sheet.  The following table summarizes the 
offsetting derivatives by counterparty master agreement level and collateral received or paid:

Gross Amounts Not Offset in the Statement of Financial Position

Gross Amounts of
Recognized Assets/
Liabilities

Derivative
Instruments

Cash Collateral
(Held)/Posted

Net Amount

As of December 31, 2017
Commodity contracts:

Derivative assets

$

Derivative liabilities
Total commodity contracts
Interest rate contracts:

Derivative assets

Derivative liabilities

Total interest rate contracts

745

$

(693)

52

53

(59)

(6)

(In millions)

(578) $
578

—

(3)
3

—

Total derivative instruments

$

46

$

— $

(11) $
73

62

—

—

—

62

$

156
(42)
114

50
(56)
(6)
108

The decrease in the natural gas position was primarily the result of the settlement of generation hedge positions.  The 

increase in the interest rate position was primarily the result of entering into new interest rate swaps to hedge additional non-
recourse project level debt.

158

159

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Gross Amounts Not Offset in the Statement of Financial Position

Gross Amounts of
Recognized Assets/
Liabilities

Derivative
Instruments

Cash Collateral
(Held)/Posted

Net Amount

As of December 31, 2016

Commodity contracts:

Derivative assets

$

1,199

$

Derivative liabilities
Total commodity contracts

Interest rate contracts:

Derivative assets

Derivative liabilities

Total interest rate contracts

(1,288)

(89)

49

(88)

(39)

(In millions)

(1,021) $
1,021

—

(4)
4

—

Total derivative instruments

$

(128) $

— $

Accumulated Other Comprehensive Income

(13) $
13

—

—

—

— $

165
(254)
(89)

45
(84)
(39)
(128)

The following tables summarize the effects on NRG's accumulated OCI balance attributable to cash flow hedge derivatives, 

net of tax: 

Accumulated OCI balance at December 31, 2016

Reclassified from accumulated OCI to income:

Due to realization of previously deferred amounts

Mark-to-market of cash flow hedge accounting contracts

Accumulated OCI balance at December 31, 2017, net of $8 tax

Losses expected to be realized from other comprehensive loss during the next 12 months, net

of $2 tax

Accumulated OCI balance at December 31, 2015

Reclassified from accumulated OCI to income:

Due to realization of previously deferred amounts
Mark-to-market of cash flow hedge accounting contracts
Accumulated OCI balance at December 31, 2016, net of $16 tax

$

$

$

$

$

Accumulated OCI balance at December 31, 2014

Reclassified from accumulated OCI to income:

Due to realization of previously deferred amounts
Mark-to-market of cash flow hedge accounting contracts
Accumulated OCI balance at December 31, 2015, net of $16 tax

$

$

Year Ended December 31, 2015

Energy
Commodities

Interest
Rate
(In millions)

Total

(1) $

(67) $

1
—
— $

14
(48)
(101) $

Year Ended December 31, 2017

Interest
Rate

Total

(In millions)

(66) $

12

—
(54) $

(12) $

(66)

12

—
(54)

(12)

Year Ended December 31, 2016

Interest
Rate

Total

(In millions)
(101) $

21
14
(66) $

(101)

21
14
(66)

(68)

15
(48)
(101)

Amounts reclassified from accumulated OCI into income are recorded to operating revenue for commodity contracts and 

interest expense for interest rate contracts.

Accounting guidelines require a high degree of correlation between the derivative and the hedged item throughout the 

period in order to qualify as a cash flow hedge.  As of December 31, 2016, the Company's regression analysis for Viento 
Funding II interest rate swaps, while positively correlated, did not meet the required threshold for cash flow hedge accounting. 
As a result, the Company de-designated the Viento Funding II cash flow hedges as of December 31, 2016, and will 
prospectively mark these derivatives to market through the income statement.

The Company's regression analysis for Marsh Landing, Walnut Creek and Avra Valley interest rate swaps, while 

positively correlated, no longer contain matching terms for cash flow hedge accounting.  As a result, the Company voluntarily 
de-designated the Marsh Landing, Walnut Creek and Avra Valley cash flow hedges as of April 28, 2017, and will prospectively 
mark these derivatives to market through the income statement.

Impact of Derivative Instruments on the Statement of Operations

Unrealized gains and losses associated with changes in the fair value of derivative instruments not accounted for as cash 

flow hedges are reflected in current period earnings.

The following table summarizes the pre-tax effects of economic hedges that have not been designated as cash flow hedges, 
and trading activity on the Company's statement of operations. The effect of commodity hedges is included within operating 
revenues and cost of operations and the effect of interest rate hedges is included in interest expense.

Unrealized mark-to-market results

Reversal of previously recognized unrealized loss/(gains) on settled

positions related to economic hedges

Reversal of acquired gain positions related to economic hedges

Net unrealized gains/(losses) on open positions related to economic

hedges

Total unrealized mark-to-market gains/(losses) for economic hedging

activities

Reversal of previously recognized unrealized (gains)/losses on settled

positions related to trading activity

Reversal of acquired gain positions related to trading activity

Net unrealized gains/(losses) on open positions related to trading activity

Total unrealized mark-to-market (losses)/gains for trading activity

Total unrealized gains/(losses)

Unrealized gains/(losses) included in operating revenues

Unrealized (losses)/gains included in cost of operations

Total impact to statement of operations — energy commodities

Total impact to statement of operations — interest rate contracts

Year Ended December 31,

2017

2016

(In millions)

2015

$

$

$

$

$

$

47

—

(128) $
(12)

146

193

(25)
—

14
(11)
182

6

(134)

10

—

18

28
(106) $

$

Year Ended December 31,

2017

2016

(In millions)

2015

228
(46)
182

9

$

$

$

(614) $
508
(106) $
$
36

(162)
(22)

(9)

(193)

(46)
(14)
(16)
(76)
(269)

(210)
(59)
(269)
17

The reversal of gain or loss positions acquired as part of acquisitions were valued based upon the forward prices on the 
acquisition dates.  The roll-off amounts were offset by realized gains or losses at the settled prices and are reflected in revenue or 
cost of operations during the same period.

For the year ended December 31, 2017, the $146 million gain from economic hedge positions was primarily the result of an 

increase in the value of forward purchases of ERCOT heat rate contracts due to ERCOT heat rate expansion.

For the year ended December 31, 2016, the $6 million gain from economic hedge positions was primarily the result of an 

increase in the value of forward purchases of natural gas due to an increase in natural gas prices.

160

161

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
For the year ended December 31, 2015, the $9 million loss from economic hedge positions was primarily the result of a 

The following table summarizes proceeds from sales of available-for-sale securities and the related realized gains and losses 

decrease in the value of forward purchases of natural gas due to a decrease in natural gas prices.

from these sales. The cost of securities sold is determined using the specific identification method.

Credit Risk Related Contingent Features

Certain of the Company's hedging agreements contain provisions that require the Company to post additional collateral if 
the counterparty determines that there has been deterioration in credit quality, generally termed "adequate assurance" under the 
agreements, or require the Company to post additional collateral if there were a one notch downgrade in the Company's credit 
rating.   The collateral required for contracts that have adequate assurance clauses that are in net liability positions as of December 31, 
2017 was $25 million.  The collateral required for contracts with credit rating contingent features that are in a net liability position 
as of December 31, 2017 was $7 million.  The Company is also a party to certain marginable agreements under which it has a net 
liability position, but the counterparty has not called for the collateral due, which was approximately $4 million as of December 31, 
2017.

See Note 4, Fair Value of Financial Instruments, for discussion regarding concentration of credit risk.

 Note 6 — Nuclear Decommissioning Trust Fund 

NRG's Nuclear Decommissioning Trust Fund assets, which are for the decommissioning of STP, are comprised of securities 
classified as available-for-sale and recorded at fair value based on actively quoted market prices. Although NRG is responsible 
for managing the decommissioning of its 44% interest in STP, the predecessor utilities that owned STP are authorized by the PUCT 
to collect decommissioning funds from their ratepayers to cover decommissioning costs on behalf of NRG. NRC requirements 
determine the decommissioning cost estimate which is the minimum required level of funding. In the event that funds from the 
ratepayers that accumulate in the nuclear decommissioning trust are ultimately determined to be inadequate to decommission the 
STP facilities, the utilities will be required to collect through rates charged to rate payers all additional amounts, with no obligation 
from NRG, provided that NRG has complied with PUCT rules and regulations regarding decommissioning trusts. Following 
completion of the decommissioning, if surplus funds remain in the decommissioning trusts, any excess will be refunded to the 
respective ratepayers of the utilities.

NRG accounts for the Nuclear Decommissioning Trust Fund in accordance with ASC 980, Regulated Operations, or ASC 
980, because the Company's nuclear decommissioning activities are subject to approval by the PUCT, with regulated rates that 
are designed to recover all decommissioning costs and that can be charged to and collected from the ratepayers per PUCT mandate. 
Since  the  Company  is  in  compliance  with  PUCT  rules  and  regulations  regarding  decommissioning  trusts  and  the  cost  of 
decommissioning is the responsibility of the Texas ratepayers, not NRG, all realized and unrealized gains or losses (including 
other-than-temporary  impairments)  related  to  the  Nuclear  Decommissioning  Trust  Fund  are  recorded  to  the  Nuclear 
Decommissioning Trust liability and are not included in net income or accumulated other comprehensive income, consistent with 
regulatory treatment.

The following table summarizes the aggregate fair values and unrealized gains and losses (including other-than-temporary 
impairments) for the securities held in the trust funds, as well as information about the contractual maturities of those securities.  

Realized gains
Realized losses
Proceeds from sale of securities

Note 7 — Inventory 

Inventory consisted of:

Fuel oil
Coal/Lignite
Natural gas
Spare parts

Total Inventory

Year Ended December 31,

2017

2016

(In millions)

2015

$

$

22
8
501

$

26
11
510

As of December 31,

2017

2016

(In millions)

$

$

90
126
24
292
532

$

$

21
14
631

142
219
28
332
721

During the year ended December 31, 2017, the Company recorded a lower of weighted average cost or market adjustment 

related to fuel oil of $33 million. 

Note 8 — Notes Receivable 

Notes receivable consist of fixed and variable rate notes related primarily to amounts owed to the Company from transmission 

owners for certain projects for the financing of network upgrades. The Company's notes receivable were as follows:

Notes receivable
Less current maturities(a)
Total notes receivable — non-current

As of December 31,

2017

2016

(In millions)

$

$

16

14

2

$

$

34

18

16

(a)  The current portion of notes receivable is recorded in prepayments and other current assets on the consolidated balance sheets.

As of December 31, 2017

As of December 31, 2016

Note 9 — Property, Plant and Equipment 

(In millions, except otherwise noted)

Fair
Value

Unrealized
Gains

Unrealized
Losses

Cash and cash equivalents

$

47

$

— $

U.S. government and federal agency

obligations

Federal agency mortgage-backed

securities

Commercial mortgage-backed securities

Corporate debt securities

Equity securities

Foreign government fixed income

securities

Total

43

82

13

99

403

5

1

1

—

2

272

—

$

692

$

276

$

—

—

1

—

1

—

—

2

Weighted-
average
maturities
(in years)

Fair
Value

Unrealized
Gains 

Unrealized
Losses

Weighted-
average
maturities
(in years)

— $

25

$

— $

11

23

20

11

—

9

73

62

17

84

346

3

1

1

—

1

214

—

  $

610

$

217

$

—

—

1

1

2

—

—

4

—

11

25

26

11

—

9

The Company's major classes of property, plant, and equipment were as follows:

Facilities and equipment
Land and improvements
Nuclear fuel
Office furnishings and equipment
Construction in progress

Total property, plant, and equipment

Accumulated depreciation

Net property, plant, and equipment

Depreciable

Lives

1-40 Years

5 Years
2-10 Years

As of December 31,

2017

2016

(In millions)

$

$

15,907
710
236
434
1,086
18,373
(4,465)
13,908

$

$

18,698
750
226
412
619
20,705
(5,336)
15,369

162

163

The Company recorded long-lived asset impairments during the years ended December 31, 2017 and 2016, as further 

described in Note 10, Asset Impairments.  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Note 10 — Asset Impairments 

2017 Impairment Losses

During the fourth quarter of 2017, the Company completed its annual budget and revised its view of long-term power and 
fuel prices and the corresponding impact on estimated cash flows associated with its long-lived assets. The most significant impact 
was a decrease in the Company's long-term view of natural gas prices which resulted in a reduction to long-term power prices and 
had a negative impact on the Company's coal, nuclear and renewable facilities. Each of the facilities below had estimated cash 
flows that were lower than the carrying amount and the assets were considered impaired.

The fair values of the assets were determined using an income approach by applying a discounted cash flow methodology to 
the long-term budget for the facility. The income approach utilized estimates of discounted future cash flows, which were Level 
3 fair value measurements, an include key inputs such as forecasted power prices, nuclear fuel costs, forecasted operating and 
maintenance costs, plant investment capital expenditures and discount rates.

South Texas Project, or STP — The Company recognized an impairment loss of $1,248 million related to its interest in STP 

as a result of the decrease in the Company's view of long-term power prices in ERCOT.

Indian River — The Company recognized an impairment loss of $36 million for Indian River as a result of the decrease in 

the Company's view of long-term power prices in PJM.

Keystone and Conemaugh — The Company recognized impairment losses of $35 million for Keystone and $35 million for 

Conemaugh as a result of the decrease in the Company's view of long-term power prices in PJM.

Wind Facilities — The Company recorded impairment losses of $110 million, $26 million and $4 million for Langford, 
Elbow Creek and Forward, respectively, as a result of the decrease in the Company's view of long-term merchant power prices 
in ERCOT and PJM. While Elbow Creek and Forward have contracts to sell power, the significant decrease in estimated power 
prices had an impact on cash flows in post-contract periods.

The Company also recorded the following impairments in 2017 based on specific triggering events that occurred:

Bacliff Project —  On June 16, 2017, NRG Texas Power LLC provided notice to BTEC New Albany, LLC that it was 
exercising its right to terminate the Amended and Restated Membership Interest Purchase Agreement, or MIPA, due to the Bacliff 
Project, a new peaking facility at the former P.H. Robinson Electric Generating Station, not achieving commercial completion 
by the contractual expiration date of May 31, 2017.  As a result of the MIPA termination, the Company recorded an impairment 
loss of $41 million to reduce the carrying amount of the related construction in progress to zero during the second quarter of 
2017. On July 14, 2017, the Company gave notice to BTEC New Albany, LLC that it owes NRG Texas Power LLC approximately 
$48 million under the terminated MIPA, consisting of $38 million in purchaser incurred costs and $10 million in liquidated 
damages.

Other  Long-Lived Asset  Impairments  —  During  the  second,  third  and  fourth  quarters  of  2017,  the  Company  recorded 
impairment losses of approximately $22 million, $14 million and $15 million, respectively, in connection with the Company's 
Renewables business. These impairment losses were primarily to record the value of certain long-lived assets, including property, 
plant and equipment and intangible assets, at fair market value at acquisition date or in connection with an impairment indicator.  

Petra  Nova  Parish  Holdings  —  In  connection  with  the  preparation  of  the  annual  budget  during  the  fourth  quarter, 
management revised its view of oil production expectations with respect to Petra Nova Parish Holdings. As a result, the Company 
reviewed its 50% interest in Petra Nova Parish Holdings for impairment utilizing the other-than-temporary impairment model. 
In determining fair value, the Company utilized an income approach and considered project specific assumptions for the future 
project cash flows. The carrying amount of the Company's equity method investment exceeded the fair value of the investment 
and the Company concluded that the decline is considered to be other-than-temporary. As a result, the Company measured the 
impairment loss as the difference between the carrying amount and the fair value of the investment and recorded an impairment 
loss of $69 million.

The Company also recorded an additional $11 million in impairment losses for other investments during the fourth quarter 

of 2017.

2016 Impairment Losses

Rockford — As described in Note 3, Discontinued Operations, Acquisitions and Dispositions, on May 12, 2016, the Company 
entered into an agreement with RA Generation, LLC to sell 100% of its interests in the Rockford generating stations for cash 
consideration of $55 million.  The transaction triggered an indicator of impairment as the sale price was less than the carrying 
amount of the assets, and, as a result, the assets were considered to be impaired.  The Company measured the impairment loss as 
the difference between the carrying amount of the assets and the agreed-upon sale price.  The Company recorded an impairment 
loss of $17 million during the year ended December 31, 2016, to reduce the carrying amount of the assets held for sale to the fair 
market value.

Wind Facilities — During the fourth quarter of 2016, as the Company updated its estimated future cash flows in connection 
with the preparation of its annual budget, the Company determined that the cash flows for the Elbow Creek and Goat Wind projects, 
located in Texas and the Forward project, located in Pennsylvania were below the carrying value of the related assets, primarily 
driven by the declining merchant power prices in post-contract periods, and the assets were considered impaired. The fair values 
of the facilities were determined using an income approach by applying a discounted cash flow methodology to the long-term 
budgets for each respective plant.  The income approach utilized estimates of discounted future cash flows, which were Level 3 
fair value measurements and include key inputs, such as forecasted power prices, operations and maintenance expense and discount 
rates.  The Company measured the impairment loss as the difference between the carrying amount and the fair value of the assets 
and recorded impairment losses of $117 million, $60 million and $6 million for Elbow Creek, Goat Wind and Forward, respectively.

Long Beach — During the fourth quarter of 2016, the Company determined that by the end of 2017 it would retire its Long 
Beach generation station located in Long Beach, California.  The generating station was not awarded a PPA extension in SCE's 
capacity auction during the fourth quarter of 2016 for the PPA set to expire on July 31, 2017.  The Company considered this to be 
an indicator of impairment and performed an impairment test.  The Company measured the impairment loss as the difference 
between the carrying amount and the fair value of the assets and recorded an impairment loss of $36 million. Subsequently, 
management decided to continue to operate in 2018, which did not significantly impact fair value. 

 Other Impairments — During 2016, the Company recorded other impairment losses of $153 million, which included $23 
million in excess SO2  allowances, $23 million for other intangible assets, $19 million in previously purchased solar panels, $18 
million in deferred marketing expenses, $22 million in other investments and $48 million of other impairment losses. 

Petra Nova Parish Holdings — During the first quarter of 2016, management changed its plans with respect to its future 
capital commitments driven in part by the continued decline in oil prices. As a result, the Company reviewed its 50% interest in 
Petra Nova Parish Holdings for impairment utilizing the other-than-temporary impairment model. In determining fair value, the 
Company utilized an income approach and considered project specific assumptions for the future project cash flows.  The carrying 
amount of the Company's equity method investment exceeded the fair value of the investment and the Company concluded that 
the decline is considered to be other-than-temporary.  As a result, the Company measured the impairment loss as the difference 
between the carrying amount and the fair value of the investment and recorded an impairment loss of $140 million.

Community Wind North and Sherbino — During the fourth quarter of 2016, the Company offered several projects to NRG 
Yield including its interest in Community Wind North.  The offer price was below its current carrying amount and this decline in 
fair value was determined to be other-than-temporary.  Accordingly, the Company recorded an impairment loss of $36 million to 
reduce its carrying amount to fair value.  In addition, in connection with the preparation of the annual budget, the Company noted 
that due to the anticipated difficulty in refinancing Sherbino’s debt that will mature in 2018, the project’s fair value had decreased 
significantly below its carrying amount and this decline was determined to be other-than-temporary.  Accordingly, the Company 
determined that an other-than-temporary impairment existed and recorded an impairment loss on its investment in Sherbino of 
$70 million.  

2015 Impairment Losses

Limestone and W.A. Parish — During the fourth quarter of 2015, as the Company updated its estimates of future cash flows 
in connection with the preparation of its annual budget, it was noted that the cash flows for the Limestone and W.A. Parish coal-
fired facilities located in Texas were lower than the carrying amount, primarily driven by declining power prices as the cost of 
commodities continues to decline and the assets were impaired.  The fair value of the Limestone and W.A. Parish plants was 
determined using an income approach by applying a discounted cash flow methodology to the long-term budgets for each respective 
plant.  The income approach utilized estimates of discounted future cash flows, which were Level 3 fair value measurements, and 
include key inputs such as forecasted power prices, fuel costs and emissions credit expense, forecasted operating and capital 
expenditures and discount rates. The Company measured the impairment loss as the difference between the carrying amount and 
the fair value of the assets and recognized impairment losses of $1,514 million and $1,295 million related to Limestone and W.A. 
Parish, respectively. 

164

165

 
 
 
 
 
 
Huntley — On August 25, 2015, the Company filed a notice with the NYSPSC of its intent to retire Huntley's operating units 
on March 1, 2016.  The Company considered this to be an indicator of impairment and performed an impairment test for these 
assets under ASC 360, Property, Plant and Equipment. On October 14, 2015, the Company filed a cost-of-service filing at FERC 
in anticipation that the Huntley operating units would be needed for reliability purposes, proposing a reliability must run service 
agreement for a four-year period beginning on March 1, 2016.  On October 30, 2015, NYISO released the results of its reliability 
study, indicating that the Huntley operating units are not needed for bulk system reliability.  The Company considered the impact 
of the reliability study conducted and evaluated the estimated cash flows associated with the facility.  Accordingly, the Company 
determined that the carrying amount of the assets was higher than the estimated future net cash flows expected to be generated 
by the assets and that the assets were impaired. The fair value of the Huntley operating units was determined using the income 
approach. The income approach utilized estimates of discounted future cash flows, which were Level 3 fair value measurements, 
and include key inputs such as forecasted contract prices, forecasted operating expenses and discount rates. The Company recorded 
an impairment loss of $132 million during the year ended December 31, 2015.

Dunkirk — The Company signed a ten-year agreement in November 2014 with National Grid to add natural gas-burning 
capabilities at the Dunkirk facility.  On August 25, 2015, NRG announced that Dunkirk Unit 2 would be mothballed on January 
1, 2016 at the expiration of its reliability support services agreement. The project to add natural gas-burning capabilities has been 
suspended, pending the outcome of litigation with respect to the gas addition contract and its validity.  On October 30, 2015, 
NYISO released the results of its reliability study, indicating that the Dunkirk facility is not needed for system reliability.  In 
connection with the planned mothball of the facility, the pending litigation and the latest reliability assessment completed by 
NYISO, the Company evaluated whether the related fixed assets were impaired. The Company determined that the carrying amount 
of the assets was higher than the estimated future net cash flows expected to be generated by the assets and that the assets were 
impaired. The fair value of the Dunkirk facility was determined using the income approach. The income approach utilized estimates 
of discounted future cash flows, which were Level 3 fair value measurements, and include key inputs such as forecasted contract 
prices, forecasted operating and capital expenditures and discount rates. The Company recorded an impairment loss of $160 million
during the year ended December 31, 2015.

Gregory — During the fourth quarter of 2015, the Company determined that the carrying amount of the assets was higher 
than the estimated future net cash flows expected to be generated by the assets and that the assets were impaired.  The fair value 
of the Gregory facility was determined using the income approach, which utilized estimates of discounted future cash flows, which 
were Level 3 fair value measurements, and include key inputs such as forecasted prices, operating and capital expenditures and 
discount rates. The Company recorded an impairment loss of $176 million during the year ended December 31, 2015.

Solar Panels — During the fourth quarter of 2015, the Company recorded an impairment loss of $29 million to reduce the 

carrying value of certain solar panels to their approximate fair value. 

Investments — During the fourth quarter of 2015, the Company reviewed certain of its cost method and equity method 
investments and concluded that losses incurred by these investments were other-than-temporary.  These losses were primarily 
driven by the sustained decline in stock price of a publicly traded investment as well as change in financing structures of certain 
non-publicly traded investments. As a result, the Company recorded losses related to these investments of $56 million.

Note 11 — Goodwill and Other Intangibles 

Goodwill 

NRG's  goodwill  balance  was  $539  million  and  $662  million  as  of  December 31,  2017  and  2016,  respectively. As  of 
December 31, 2017, and 2016, NRG had approximately $460 million and $547 million, respectively, of goodwill that is deductible 
for U.S. income tax purposes in future periods.  As of December 31, 2017, goodwill consisted of $165 million associated with the 
acquisition of EME, $341 million for Retail business acquisitions, and $33 million associated with other business acquisitions.

2017 Impairments of Goodwill  

BETM — During the fourth quarter of 2017, the Company concluded that BETM was held for sale in connection with board 
approval and advanced negotiations to sell the business.  Accordingly, the Company recorded the assets and liabilities at fair market 
value as of December 31, 2017, which resulted in an impairment loss of $90 million to record BETM’s goodwill at fair market value.  
The remaining goodwill balance for BETM of $21 million is included within non-current assets held-for-sale as of December 31, 
2017.

SPP — During the fourth quarter of 2017, NRG sold its interests in certain SPP projects to NRG Yield.  The goodwill 
recorded during the SPP acquisition was related primarily to its development pipeline, which was not sold to NRG Yield.  As the 
Company does not expect to separately develop these projects and accordingly, has no cash flow stream associated with the goodwill, 
an impairment loss of $12 million was recorded to reduce the value to zero as of December 31, 2017. 

2016 Impairments of Goodwill  

During the year ended December 31, 2016, the Company recorded a goodwill impairment charge of $337 million related 

to its Texas reporting unit, reducing the goodwill balance for Texas to zero.

In connection with the annual impairment assessment, the Company performed step one of the two-step impairment test 
for the Texas reporting unit, for which $1.7 billion of goodwill was recognized as part of the Texas Genco acquisition in 2006 and 
$1.4 billion was written off in 2015.  The Company determined the fair value of the Texas reporting unit primarily using an income 
approach through which the Company applied a discounted cash flow methodology to the long-term budgets for all plants in the 
regions.  Significant inputs impacting the income approach include the Company's views of power and fuel prices for the first five-
year period and the Company's view for the longer term, which were finalized in connection with the preparation of the fourth quarter 
financial statements, projected generation based on an hourly dispatch meant to simulate the dispatch of each unit into the power 
market which is impacted by power prices, fuel prices, and the physical and economic characteristics of each plant, intangible value 
to Texas for synergies it provides to NRG's retail businesses, and the discount rate applied to cash flow projections.  Under step one, 
the estimated fair value of the Texas invested capital was 43% below its carrying value as of December 31, 2016, and the Company 
concluded step two was required.  Based on the results of step two of the impairment test, the Company determined the carrying 
amount of the reporting unit was higher than the fair value, and accordingly, the Company recognized an impairment loss of $337 
million as of December 31, 2016.

Intangible Assets 

The Company's intangible assets as of December 31, 2017, primarily reflect intangible assets established with the acquisitions 

of various companies and are comprised of the following:

•  Emission Allowances — These intangibles primarily consist of SO2 and NOx emission allowances established with the 2006 
Texas Genco acquisition and also include RGGI emission credits which NRG began purchasing in 2009. These emission 
allowances are held-for-use and are amortized to cost of operations, with NOx allowances amortized on a straight-line basis 
and SO2 allowances and RGGI credits amortized based on units of production. During the year ended December 31, 2017, 
the Company recorded an impairment loss of $20 million to reduce the value of excess SO2 allowances to zero.

•  Energy supply contracts — Established with the acquisitions of Reliant Energy and Green Mountain Energy, these represent 
the fair value at the acquisition date of in-market contracts for the purchase of energy to serve retail electric customers. The 
contracts are amortized to cost of operations based on the expected delivery under the respective contracts.

• 

In-market fuel (gas and nuclear) contracts — These intangibles were established with the Texas Genco acquisition in 2006 
and are amortized to cost of operations over expected volumes over the life of each contract.

•  Customer contracts — Established with the acquisitions of Reliant Energy, Green Mountain Energy, and Northwind Phoenix, 
these intangibles represent the fair value at the acquisition date of contracts that primarily provide electricity to Reliant 
Energy's  and  Green  Mountain  Energy's  C&I  customers. These  contracts  are  amortized  to  revenues  based  on  expected 
volumes to be delivered for the portfolio.

•  Customer relationships — These intangibles represent the fair value at the acquisition date of acquired businesses' customer 
base, primarily for Dominion, Energy Alternatives, Energy Plus, Reliant Energy, Green Mountain Energy, Energy Systems, 
Energy Curtailment Specialists, and Source Power & Gas. The customer relationships are amortized to depreciation and 
amortization expense based on the expected discounted future net cash flows by year. 

•  Marketing partnerships — Established with the acquisition of Energy Plus, these intangibles represent the fair value at the 
acquisition date of existing agreements with loyalty and affinity partners.  The marketing partnerships are amortized to 
depreciation and amortization expense based on the expected discounted future net cash flows by year.

• 

Trade  names — Established  with  the  Reliant  Energy,  Green  Mountain,  Energy  Plus  and  Dominion  acquisitions,  these 
intangibles are amortized to depreciation and amortization expense, on a straight-line basis.

•  Power purchase agreements — Established predominantly with the EME and Alta Wind acquisitions, these represent the 
fair value of PPAs acquired.  These will be amortized to revenues, generally on a straight-line basis, over the terms of the 
PPAs. During the year ended December 31, 2017, the Company recorded an impairment loss of $6 million related to PPAs.

•  Other — Consists of renewable energy credits, wind leasehold rights, costs to extend the operating license for STP Units 

1 and 2, and the intangible assets related to purchased ground leases. 

166

167

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The following tables summarize the components of NRG's intangible assets subject to amortization:

The following table presents NRG's amortization of intangible assets for each of the past three years:

Year Ended December 31,
2017

Emission
Allowances

Energy
Supply

Fuel Customer

Customer
Relationships

Marketing
Partnerships

Trade
Names

PPA

Other

Total

Amortization

Contracts

January 1, 2017
Purchases
Acquisition of
businesses

Usage
Write-off of fully 
amortized balances(a)
Impairment
Other
December 31, 2017

Less accumulated
amortization

$

789
31

—
(10)

—
(20)
(23)
767

$

$72
54
— —

$

— —
— —

(54)
(23)
— —
— —
— 49

16
—

—
—

—
—
—
16

(591)

— (45)

(9)

Net carrying amount

$

176

$ — $ 4

$

7

$

$

(In millions)
816
—

$

18
—

—
—
—
834

88
—

—
—

—
—
—
88

$

342
—

$ 1,286
—

$198
32

$ 3,661
63

—
—

—
—
—
342

—
—
— (28)

18
(38)

—
—
(6) —
(19)
5
183
1,285

(77)
(26)
(37)
3,564

Emission allowances

Energy supply contracts

Fuel contracts

Customer contracts

Customer relationships

Marketing partnerships

Trade names

Power purchase agreements

Other

Total amortization

Years Ended December 31,

2017

2016

(In millions)

2015

$

73

—

1

1

35

5

23

62

7

$

66

$

7

2

2

49

8

22

64

11

60

5

2

2

67

14

23

51

14

$

207

$

231

$

238

(a) Adjusted for write-off of fully amortized energy supply contracts of $54 million and fuel contracts of $23 million. 

Contracts

Contracts

Year Ended December 31,

Emission
Allowances

Fuel

Customer

Customer
Relationships

Marketing
Partnerships

Trade
Names

PPA

Other

Total

Year Ended December 31,
2016

Emission
Allowances

Energy
Supply

Fuel Customer

Customer
Relationships

Marketing
Partnerships

Trade
Names

PPA

Other

Total

(698)
136

$

(54)
34

$

(182)
160

(205)
$ 1,080

(34)
$149

(1,818)

$ 1,746

The following table presents estimated amortization of NRG's intangible assets for each of the next five years:

January 1, 2016

$

816

$

54

$72

$

Purchases

Acquisition of
businesses

Usage

Write-off of fully 

amortized balances(a)

Impairment(b)
Other

December 31, 2016

Less accumulated
amortization

13

—

(1)

(10)

(23)

(6)

789

— —

— —

— —

— —

— —

— —

54

72

(In millions)

$

834

$

—

—

—

—
(18)
—

816

16

—

—

—

—

—

—

16

88

—

—

—

—

—

—

88

$

342

$ 1,286

$213

$ 3,721

—

—

—

—

—

—

—

34

18
— (44)

—
—
— (23)
—
—

47

18

(45)

(10)

(64)

(6)

342

1,286

198

3,661

Net carrying amount

$

271

$ — $ 5

$

8

$

(518)

(54)

(67)

(8)

(663)
153

$

(49)
39

$

(159)
183

(143)
$ 1,143

(27)
$171

(1,688)

$ 1,973

(a) Adjusted for write-off of fully amortized emission allowances of $10 million.
(b) The impairment of customer relationships and other intangibles included a write-off of accumulated amortization of $10 million and $8 million, respectively.

2018

2019

2020

2021

2022

$

33

$ 1

$

30 —

16 —

16 —

15 —

$

1

1

1

1

1

(In millions)

$

25

21

17

13

7

$

5

4

4

4

3

$

22

22

22

22

22

$

64

64

64

64

64

8

8

8

8

8

$ 159

150

132

128

120

Intangible assets held for sale — From time to time, management may authorize the transfer from the Company's emission 
bank of emission allowances held-for-use to intangible assets held-for-sale.  Emission allowances held-for-sale are included in other 
non-current assets on the Company's consolidated balance sheet and are not amortized, but rather expensed as sold.  As of December 31, 
2017, the value of emission allowances held-for-sale is $9 million and is managed within the Corporate segment.  Once transferred 
to held-for-sale, these emission allowances are prohibited from moving back to held-for-use.

Out-of-market contracts — Due primarily to business acquisitions, NRG acquired certain out-of-market contracts, which are 
classified as non-current liabilities on NRG's consolidated balance sheet.  These include out-of-market lease contracts of $159 million 
acquired in the acquisition of EME.  These out-of-market contracts are amortized to cost of operations. As of December 31, 2017
and 2016, the Company had accumulated amortization for out-of-market contracts of $358 million and $457 million, respectively. 

The following table summarizes the estimated amortization related to NRG's out-of-market contracts:

Year Ended December 31,

Power Contracts

Leases

Total

2018

2019

2020

2021

2022

$

16

16

17

14

1

(In millions

$

$

9

9

9

9

9

25

25

26

23

10

168

169

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
December 31,

2017

2016

December 31, 2017
Interest Rate % (a) 

Note 12 — Debt and Capital Leases 

Long-term debt and capital leases consisted of the following:  

(In millions, except rates)

Recourse debt:

Senior notes, due 2018
Senior notes, due 2021
Senior notes, due 2022
Senior notes, due 2023
Senior notes, due 2024
Senior notes, due 2026
Senior notes, due 2027
Senior notes, due 2028
Term loan facility, due 2023
Tax-exempt bonds

Subtotal recourse debt

Non-recourse debt:

$

— $
—
992
—
733
1,000
1,250
870
1,872
465
7,182

NRG Yield Operating LLC Senior Notes, due 2024
NRG Yield Operating LLC Senior Notes, due 2026
NRG Yield, Inc. Convertible Senior Notes, due 2019
NRG Yield, Inc. Convertible Senior Notes, due 2020
NRG Yield LLC and NRG Yield Operating LLC Revolving Credit Facility, due 
2019 (b) 
El Segundo Energy Center, due 2023
Marsh Landing, due 2023
Alta Wind I - V lease financing arrangements, due 2034 and 2035
Walnut Creek, term loans due 2023
Utah Portfolio, due 2022
Tapestry, due 2021
CVSR, due 2037
CVSR HoldCo, due 2037
Alpine, due 2022
Energy Center Minneapolis, due 2025
Energy Center Minneapolis, due 2031
Viento, due 2023
NRG Yield - other

Subtotal NRG Yield debt (non-recourse to NRG) (c)

Ivanpah, due 2033 and 2038
Carlsbad Energy Project (c)
Agua Caliente, due 2037
Agua Caliente Borrower 1, due 2038
Cedro Hill, due 2029 (c)
Midwest Generation, due 2019
NRG Other Renewables (c)
NRG Other

Subtotal other non-recourse debt
Subtotal all non-recourse debt

Subtotal long-term debt (including current maturities)

Capital leases

Subtotal long-term debt and capital leases (including current maturities)
Less current maturities
Less debt issuance costs
Discounts
Total long-term debt and capital leases

$

500
350
345
288

55
400
318
926
267
278
162
746
194
135
83
125
163
579
5,914
1,073
427
818
89
151
152
647
180
3,537
9,451
16,633
5
16,638
(688)
(204)
(30)
15,716

$

7.625
7.875
6.250
6.625
6.250
7.250
6.625
5.750
L+2.25
4.125 - 6.00

5.375
5.000
3.500
3.250

L+2.500
L+1.75 - L+2.375
 L+1.875
5.696 - 7.015
L+1.625
L+2.625
L+1.625
2.339 - 3.775
4.680
L+1.750
3.55 - 5.95
3.55
L+3.00
various

2.285 - 4.256
L+1.625 -.04120
2.395 - 3.633
5.430
L+1.75
4.390

various

various

398
207
992
869
733
1,000
1,250
—
1,891
455
7,795

500
350
345
288

—
443
370
965
310
287
172
771
199
145
96
125
178
603
6,147
1,113
—
849
—
163
231
269
137
2,762
8,909
16,704
6
16,710
(516)
(188)
(49)
15,957

Long-term debt includes the following discounts:

Term loan facility, due 2023 (a)
Yield, Inc. Convertible notes, due 2019
Yield, Inc. Convertible notes, due 2020
Midwest Generation, due 2019

Total discounts

As of December 31,

2017

2016

(In millions)
(7) $
(5)
(13)
(5)
(30) $

(9)
(10)
(17)
(13)
(49)

$

$

(a)  Term loan facility, due 2018 replaced with the Term loan facility due 2023. Discount of $1 million was related to current maturities in 2016.

Consolidated Annual Maturities 

Annual payments based on the maturities of NRG's debt and capital leases for the years ending after December 31, 2017

are as follows:

2018
2019
2020
2021
2022
Thereafter
Total

Recourse Debt

Senior Notes

(In millions)

695
933
805
606
1,854
11,745
16,638

$

$

Issuance of 2028 Senior Notes 

On December 7, 2017, NRG issued $870 million of aggregate principal amount at par of 5.75% senior unsecured notes due 
2028. The 2028 Senior Notes are senior unsecured obligations of NRG and are guaranteed by certain of its subsidiaries. Interest 
is paid semi-annually beginning on July 15, 2018, until the maturity date of January 15, 2028.  The proceeds from the issuance 
of the 2028 Senior Notes were utilized to redeem the Company's 6.625% Senior Notes due 2023.

Issuance of 2026 Senior Notes 

On May 23, 2016, NRG issued $1.0 billion in aggregate principal amount at par of 7.25% senior notes due 2026, or the 
2026  Senior  Notes.   The  2026  Senior  Notes  are  senior  unsecured  obligations  of  NRG  and  are  guaranteed  by  certain  of  its 
subsidiaries.  Interest is paid semi-annually beginning on November 15, 2016, until the maturity date of May 15, 2026.  The 
proceeds from the issuance of the 2026 Senior Notes were utilized to repurchase a portion of the Senior Notes during 2016.

Issuance of 2027 Senior Notes 

On August 2, 2016, NRG issued $1.25 billion in aggregate principal amount at par of 6.625% senior notes due 2027, or the 
2027  Senior  Notes.   The  2027  Senior  Notes  are  senior  unsecured  obligations  of  NRG  and  are  guaranteed  by  certain  of  its 
subsidiaries.  Interest is paid semi-annually beginning on January 15, 2017, until the maturity date of January 15, 2027.  The 
proceeds from the issuance of the 2027 Senior Notes were utilized to retire the Company's 8.250% senior notes due 2020 and 
reduce the balance of the Company's 7.875% senior notes due 2021. 

(a)  As of December 31, 2017, L+ equals 3 month LIBOR plus x%, except for the Utah Solar Portfolio where L+ equals  1 month LIBOR plus 2.629%.
(b)  Applicable rate is determined by the Borrower Leverage Ratio, as defined in the credit agreement
(c)  Debt associated with the asset sales announced in February 2018

170

171

 
 
 
 
 
 
 
2017 Senior Note Redemptions 

The Company periodically enters into supplemental indentures for the purpose of adding entities under the Senior Notes 

During the year ended  December 31, 2017, the Company redeemed $1.5 billion in aggregate principal of its Senior Notes 
for $1.5 billion, which included accrued interest of $29 million.  In connection with the redemptions, a $49 million loss on debt 
extinguishment was recorded, which included the write-off of previously deferred financing costs of $7 million. 

Amount in millions, except rates
7.625% senior notes due 2018 
7.875% senior notes due 2021
6.625% senior notes due 2023
Total

(a) Includes payment for accrued interest.

2016 Senior Notes Repurchases

Principal
Repurchased

Cash Paid (a) 

Average Early Redemption
Percentage

$

$

398
206
869
1,473

$

$

411
218
915
1,544

101.42%
102.63%
103.57%

During the year ended December 31, 2016, the Company repurchased $3.0 billion in aggregate principal of its Senior Notes 
for $3.1 billion, which included accrued interest of $77 million. In connection with the repurchases, a $117 million loss on debt 
extinguishment was recorded, which included the write-off of previously deferred financing costs of $16 million. 

Amount in millions, except rates
7.625% senior notes due 2018 (b)
8.250% senior notes due 2020
7.875% senior notes due 2021 (c)
6.250% senior notes due 2022
6.625% senior notes due 2023
6.250% senior notes due 2024
Total

(a) Includes payment for accrued interest.
(b) $186 million of the redemptions financed by cash on hand.
(c) $193 million of the redemptions financed by cash on hand.

Senior Notes Outstanding

Principal
Repurchased

Cash Paid (a) 

Average Early
Redemption
Percentage

$

$

$

641
1,058
922
108
67
171

2,967

$

706
1,129
978
105
64
163

3,145

107.89%
103.12%
104.00%
94.73%
94.13%
94.52%

As of December 31, 2017, NRG had the following outstanding issuances of senior notes, or Senior Notes:

i. 

ii. 

iii. 

iv. 

v. 

6.250% senior notes, issued January 27, 2014 and due July 15, 2022, or the 2022 Senior Notes;

6.250% senior notes, issued April 21, 2014 and due November 1, 2024, or the 2024 Senior Notes;

7.250% senior notes, issued May 23, 2016 and due May 15, 2026, or the 2026 Senior Notes; 

6.625% senior notes, issued August 2, 2016 and due January 15, 2027, or the 2027 Senior Notes; and

5.750% senior notes, issued December 7, 2017 and due January 15, 2028, or the 2028 Senior Notes.

as guarantors.

The indentures and the forms of notes provide, among other things, that the Senior Notes will be senior unsecured obligations 
of NRG. The indentures also provide for customary events of default, which include, among others: nonpayment of principal or 
interest; breach of other agreements in the indentures; defaults in failure to pay certain other indebtedness; the rendering of 
judgments to pay certain amounts of money against NRG and its subsidiaries; the failure of certain guarantees to be enforceable; 
and certain events of bankruptcy or insolvency.  Generally, if an event of default occurs, the Trustee or the Holders of at least 
25% in principal amount of the then outstanding series of Senior Notes may declare all of the Senior Notes of such series to be 
due and payable immediately.  The terms of the indentures, among other things, limit NRG's ability and certain of its subsidiaries' 
ability to return capital to stockholders, grant liens on assets to lenders and incur additional debt.  Interest is payable semi-annually 
on the Senior Notes until their maturity dates. 

2022 Senior Notes 

At any time prior to July 15, 2017, NRG may redeem up to 35% of the aggregate principal amount of the 2022 Senior Notes, 
at a redemption price equal to 106.25% of the principal amount of the notes redeemed, plus accrued and unpaid interest, with an 
amount equal to the net cash proceeds of certain equity offerings.  At any time prior to July 15, 2018, NRG may redeem all or a 
part of the 2022 Senior Notes, at a redemption price equal to 100% of the principal amount, accrued and unpaid interest to the 
redemption date, plus a premium.  The premium is the greater of: (i) 1% of the principal amount of the notes; or (ii) the excess 
of the principal amount of the note over the following:  the present value of 103.125% of the note, plus interest payments due on 
the note from the date of redemption through July 15, 2018, computed using a discount rate equal to the Treasury Rate as of such 
redemption date plus 0.50%.  In addition, on or after July 15, 2018, NRG may redeem some or all of the notes at redemption 
prices expressed as percentages of principal amount as set forth in the following table, plus accrued and unpaid interest on the 
notes redeemed to the first applicable redemption date: 

Redemption Period

July 15, 2018 to July 14, 2019

July 15, 2019 to July 14, 2020

July 15, 2020 and thereafter

2024 Senior Notes

Redemption
Percentage

103.125%

101.563%

100.000%

At any time prior to May 1, 2017, NRG may redeem up to 35% of the aggregate principal amount of the 2024 Senior Notes, 
at a redemption price equal to 106.25% of the principal amount of the notes redeemed, plus accrued and unpaid interest, with an 
amount equal to the net cash proceeds of certain equity offerings.  At any time prior to May 1, 2019, NRG may redeem all or a 
part of the 2024 Senior Notes, at a redemption price equal to 100% of the principal amount, accrued and unpaid interest to the 
redemption date, plus a premium.  The premium is the greater of: (i) 1% of the principal amount of the notes; or (ii) the excess 
of the principal amount of the note over the following:  the present value of 103.125% of the note, plus interest payments due on 
the note from the date of redemption through May 1, 2019 computed using a discount rate equal to the Treasury Rate as of such 
redemption date plus 0.50%.  In addition, on or after May 1, 2019, NRG may redeem some or all of the notes at redemption prices 
expressed as percentages of principal amount as set forth in the following table, plus accrued and unpaid interest on the notes 
redeemed to the first applicable redemption date: 

Redemption Period

May 1, 2019 to April 30, 2020

May 1, 2020 to April 30, 2021

May 1, 2021 to April 30, 2022

May 1, 2022 and thereafter

Redemption
Percentage

103.125%

102.083%

101.042%

100.000%

172

173

 
 
 
                        
                        
 
 
 
2026 Senior Notes

At any time prior to May 15, 2019, NRG may redeem up to 35% of the aggregate principal amount of the 2026 Senior 
Notes, at a redemption price equal to 107.25% of the principal amount of the notes redeemed, plus accrued and unpaid interest, 
with an amount equal to the net cash proceeds of certain equity offerings.  At any time prior to May 15, 2021, NRG may redeem 
all or a part of the 2026 Senior Notes, at a redemption price equal to 100% of the principal amount, accrued and unpaid interest 
to the redemption date, plus a premium.  The premium is the greater of: (i) 1% of the principal amount of the notes; or (ii) the 
excess of the principal amount of the note over the following:  the present value of 103.625% of the note, plus interest payments 
due on the note from the date of redemption through May 15, 2021 computed using a discount rate equal to the Treasury Rate as 
of such redemption date plus 0.50%.  In addition, on or after May 15, 2021, NRG may redeem some or all of the notes at redemption 
prices expressed as percentages of principal amount as set forth in the following table, plus accrued and unpaid interest on the 
notes redeemed to the first applicable redemption date:

Redemption Period

May 15, 2021 to May 14, 2022

May 15, 2022 to May 14, 2023

May 15, 2023 to May 14, 2024

May 15, 2024 and thereafter

2027 Senior Notes

Redemption
Percentage

103.625%

102.417%

101.208%

100.000%

At any time prior to July 15, 2019, NRG may redeem up to 35% of the aggregate principal amount of the 2027 Senior Notes, 
at a redemption price equal to 106.625% of the principal amount of the notes redeemed, plus accrued and unpaid interest, with 
an amount equal to the net cash proceeds of certain equity offerings.  At any time prior to July 15, 2021 NRG may redeem all or 
a part of the 2027 Senior Notes, at a redemption price equal to 100% of the principal amount, accrued and unpaid interest to the 
redemption date, plus a premium.  The premium is the greater of: (i) 1% of the principal amount of the notes; or (ii) the excess 
of the principal amount of the note over the following:  the present value of 103.313% of the note, plus interest payments due on 
the note from the date of redemption through July 15, 2021 computed using a discount rate equal to the Treasury Rate as of such 
redemption date plus 0.50%.  In addition, on or after July 15, 2021, NRG may redeem some or all of the notes at redemption 
prices expressed as percentages of principal amount as set forth in the following table, plus accrued and unpaid interest on the 
notes redeemed to the first applicable redemption date: 

Redemption Period

July 15, 2021 to July14, 2022

July 15, 2022 to July 14, 2023

July 15, 2023 to July 14, 2024

July 15, 2024 and thereafter

2028 Senior Notes

Redemption
Percentage

103.313%

102.208%

101.104%

100.000%

At any time prior to January 15, 2021, NRG may redeem up to 35% of the aggregate principal amount of the 2028 Senior 
Notes, at a redemption price equal to 105.750% of the principal amount of the notes redeemed, plus accrued and unpaid interest, 
with an amount equal to the net cash proceeds of certain equity offerings.  At any time prior to January 15, 2023 NRG may redeem 
all or a part of the 2028 Senior Notes, at a redemption price equal to 100% of the principal amount, accrued and unpaid interest 
to the redemption date, plus a premium.  The premium is the greater of: (i) 1% of the principal amount of the notes; or (ii) the 
excess of the principal amount of the note over the following:  the present value of 102.875% of the note, plus interest payments 
due on the note from the date of redemption through January 15, 2023 computed using a discount rate equal to the Treasury Rate 
as of such redemption date plus 0.50%.  In addition, on or after January 15, 2023, NRG may redeem some or all of the notes at 
redemption prices expressed as percentages of principal amount as set forth in the following table, plus accrued and unpaid interest 
on the notes redeemed to the first applicable redemption date: 

Redemption Period

January 15, 2023 to January 14, 2024

January 15, 2024 to January 14, 2025

January 15, 2025 to January 14, 2026

January 15, 2026 and thereafter

Senior Credit Facility

Redemption
Percentage

102.875%

101.917%

100.958%

100.000%

On June 30, 2016, NRG replaced its Senior Credit Facility, consisting of its Term Loan Facility and Revolving Credit 

Facility with a new senior secured facility, or the Senior Credit Facility, which includes the following:

•  A $1.9 billion term loan facility, or the 2023 Term Loan Facility, with a maturity date of June 30, 2023, which will pay 
interest at a rate of LIBOR plus 2.75%, with a LIBOR floor of 0.75%.  The debt was issued at 99.50% of face value; 
the discount will be amortized to interest expense over the life of the loan. Repayments under the 2023 Term Loan 
Facility will consist of 0.25% of principal per quarter, with the remainder due at maturity. The proceeds of the new term 
loan facility as well as cash on hand were used to repay the 2018 Term Loan Facility balance outstanding.  A $21 million
loss on extinguishment of the Term Loan Facility was recorded during the second quarter of 2016, which consisted of 
the write-off of previously deferred financing costs. On January 24, 2017, NRG repriced the 2023 Term Loan Facility, 
reducing the interest rate margin by 50 basis points to LIBOR plus 2.25%, the LIBOR floor remains 0.75%. 

•  A $289 million revolving senior credit facility, or the Tranche A Revolving Facility, with a maturity date of July 1, 2018 
and a $2.2 billion revolving senior credit facility, or the Tranche B Revolving Facility, with a maturity date of June 30, 
2021, which will pay interest at a rate of LIBOR plus 2.25%. 

The Senior Credit Facility is guaranteed by substantially all of NRG's existing and future direct and indirect subsidiaries, 
with certain customary or agreed-upon exceptions for unrestricted foreign subsidiaries, and certain other subsidiaries, including 
GenOn, NRG Yield, Inc. and their respective subsidiaries. The capital stock of these guarantor subsidiaries has been pledged for 
the benefit of the Senior Credit Facility's lenders.

The Senior Credit Facility is also secured by first-priority perfected security interests in substantially all of the property 
and assets owned or acquired by NRG and its subsidiaries, other than certain limited exceptions. These exceptions include assets 
of certain unrestricted subsidiaries, equity interests in certain of NRG's affiliates that have non-recourse debt financing, including 
GenOn, NRG Yield, Inc. and their respective subsidiaries, and voting equity interests in excess of 66% of the total outstanding 
voting equity interest of certain of NRG's foreign subsidiaries. 

Tax Exempt Bonds

Amount in millions, except rates
Indian River Power tax exempt bonds, due 2040
Indian River Power LLC, tax exempt bonds, due 2045
Dunkirk Power LLC, tax exempt bonds, due 2042
City of Texas City, tax exempt bonds, due 2045

Fort Bend County, tax exempt bonds, due 2038
Fort Bend County, tax exempt bonds, due 2042

Total

As of December 31,

2017

2016

Interest Rate %

$

$

$

57
190
59
32

54
73

465

$

57
190
59
22

54
73

455

6.000
5.375
5.875
4.125

4.750
4.750

174

175

 
 
 
 
 
 
Non-Recourse Debt

The following are descriptions of certain indebtedness of NRG's subsidiaries that are outstanding as of December 31, 2017.  

All of NRG's non-recourse debt is secured by the assets in the respective project subsidiaries as further described below. 

Yield LLC and Yield Operating LLC Revolving Credit Facility 

NRG Yield LLC and its direct wholly owned subsidiary, NRG Yield Operating LLC, entered into a senior secured revolving 
credit facility, which can be used for cash and for the issuance of letters of credit.  At December 31, 2017, there was $55 million
outstanding on the revolver and $74 million of letters of credit issued under the revolving credit facility.

NRG Yield Operating 2026 Senior Notes

On August 18, 2016, NRG Yield Operating LLC issued $350 million of senior unsecured notes, or the NRG Yield Operating 
2026 Senior Notes.  The NRG Yield Operating 2026 Senior Notes bear interest of 5.00% and mature on September 15, 2026.  
Interest on the notes is payable semi-annually on March 15 and September 15 of each year, and will commence on March 15, 
2017.  The Yield Operating 2026 Senior Notes are senior unsecured obligations of NRG Yield Operating LLC and are guaranteed 
by NRG Yield LLC, and by certain of NRG Yield Operating LLC’s wholly owned current and future subsidiaries.  A portion of 
the proceeds from the 2026 Senior Notes was used to repay NRG Yield Operating LLC's revolving credit facility.

Project Financings

The following are descriptions of certain indebtedness of NRG's project subsidiaries that are outstanding as of December 31, 

2017.

Aqua Caliente Holdco Financing Agreement

On February 17, 2017, Agua Caliente Borrower I LLC and Agua Caliente Borrower II LLC, Agua Caliente Holdco, the 
indirect owners of the Agua Caliente solar facility, issued $130 million of senior secured notes under the Agua Caliente Holdco 
Financing Agreement, or 2038 Agua Caliente Holdco Notes, that bear interest at 5.43% and mature on December 31, 2038.  Net 
proceeds were distributed to the Company.

Carlsbad Project Financing

On May 26, 2017, Carlsbad Energy Holdings, LLC entered into a note payable agreement with financial institutions for 
the issuance of up to $407 million of senior secured notes that bear interest at a rate of 4.12%, and mature on October 31, 2038.  
As of December 31, 2017, all $407 million of these notes were outstanding.  

Also  on  May  26,  2017,  Carlsbad  Energy  Holdings,  LLC  entered  into  a  credit  agreement,  or  the  Carlsbad  Financing 
Agreement,  with the issuing banks, for a $194 million construction loan, that will convert to a term loan upon completion of the 
project.  The Carlsbad Financing Agreement also includes a letter of credit facility with an aggregate principle amount not to 
exceed $83 million, and a working capital loan facility with an aggregate principle amount not to exceed $4 million.  As of 
December 31, 2017, $20 million was outstanding under the construction loan and $29 million in in letters of credit in support of 
the project were issued.

Utah Portfolio

 As part of the November 2, 2016 utility-scale solar and wind acquisition, as discussed in Note 3, Discontinued Operations, 
Acquisitions and Dispositions, NRG recorded $222 million of non-recourse project level debt.  As of term conversion for the 
three associated debt facilities, the Company borrowed an additional $65 million of non-recourse debt. Each facility bears interest 
of LIBOR plus 2.625% and matures on December 16, 2022. 

Thermal Financing

On October 31, 2016, NRG Energy Center Minneapolis LLC, a subsidiary of NRG Yield, Inc., received proceeds of $125 
million from the issuance of 3.55% Series D notes due October 31, 2031, or the Series D Notes, and entered into a shelf facility 
for the anticipated issuance of an additional $70 million of notes. The Series D Notes are secured by substantially all of the assets 
of NRG Energy Center Minneapolis LLC. NRG Thermal LLC has guaranteed the indebtedness and its guarantee is secured by 
a pledge of the equity interests in all of NRG Thermal LLC’s subsidiaries. NRG Energy Center Minneapolis LLC distributed the 
proceeds of the Series D Notes to NRG Thermal LLC, who in turn distributed the proceeds to NRG Yield Operating LLC to be 
utilized for general corporate purposes, including potential acquisitions.  

Alta Wind lease financing arrangements

Alta Wind Holdings (Alta Wind II - V) and Alta I have finance lease obligations issued under lease transactions whereby 
the respective operating entities sold and leased back undivided interests in specific assets of the projects.  All of the assets of 
Alta I-V are pledged as collateral under these arrangements. The sale and related lease transactions are accounted for as financing 
arrangements as the operating entities have continued involvement with the property. 

Amount in millions,
except rates

Non-Recourse Debt

Alta Wind I

Alta Wind II
Alta Wind III
Alta Wind IV
Alta Wind V
Total

Lease Financing Arrangement

Letter of Credit Facility

Amount Outstanding as
of December 31, 2017

Interest Rate

Maturity
Date

Amount Outstanding as
of December 31, 2017

$

$

231

183
191
123
198
926

7.015%

12/30/2034

$

5.696%
6.067%
5.938%
6.071%

12/30/2034
12/30/2034
12/30/2034
6/30/2035

$

16

27
27
19
30
119

Interest Rate
3.00% -
3.25%

1.250%
1.750%
1.750%
1.750%

Maturity
Date

1/5/2021

3/21/2022
various
various
various

Midwest Generation

On April 7, 2016, Midwest Generation, LLC, or MWG, entered into an agreement to sell certain quantities of unforced 
capacity that has cleared various PJM Reliability Pricing Model auctions to a trading counterparty for net proceeds of $253 
million.  MWG will continue to operate the applicable generation facilities and remains responsible for performance penalties 
and eligible for performance bonus payments, if any. Accordingly, MWG will continue to account for all revenues and costs as 
before; however, the proceeds will be recorded as a financing obligation while capacity payments by PJM to the counterparty 
will be reflected as debt amortization and interest expense through the end of the 2018/19 delivery year.  MWG will amortize 
the upfront discount to interest expense, at an effective interest rate of 4.39%, over the term of the arrangement, through June 
2019.  As of December 31, 2017, $152 million was outstanding.

CVSR

On July 15, 2016, CVSR Holdco LLC, the indirect owner of the CVSR project, issued $200 million of senior secured notes. 
 The $199 million of net proceeds from the notes were distributed to a subsidiary of NRG and NRG Yield Operating LLC, the 
owners of CVSR Holdco LLC, based on their pro-rata ownership. The notes were issued at par and bear an interest rate at 4.68%.  
Interest is payable semi-annually beginning on September 30, 2016, until the maturity date of March 31, 2037. 

Capistrano Refinancing

On July 13, 2016, Cedro Hill, Broken Bow and Crofton Bluffs, subsidiaries of Capistrano Wind Partners, each amended 
their respective credit facilities to increase borrowings to a total of $312 million and to lower their respective interest rates. The 
net proceeds of $87 million were distributed to Capistrano Wind Partners and subsequently distributed to the holders of the Class 
B preferred equity interests of Capistrano Wind Partners. 

176

177

 
 
 
 
 
 
Interest Rate Swaps — Project Financings

Note 13 — Asset Retirement Obligations 

Many of NRG's project subsidiaries entered into interest rate swaps, intended to hedge the risks associated with interest 
rates on non-recourse project level debt.  These swaps amortize in proportion to their respective loans and are floating for fixed 
where the project subsidiary pays its counterparty the equivalent of a fixed interest payment on a predetermined notional value 
and will receive quarterly the equivalent of a floating interest payment based on the same notional value.  All interest rate swap 
payments by the project subsidiary and its counterparty are made quarterly, and the LIBOR is determined in advance of each 
interest period.  The following table summarizes the swaps, some of which are forward starting as indicated, related to NRG's 
project level debt as of December 31, 2017.

% of
Principal

Fixed
Interest
Rate

Floating Interest Rate

Notional Amount at
December 31, 2017
(In millions)

Effective Date

Maturity Date

85% various

1-mo. LIBOR

$

1,000

June 30, 2016

June 30, 2021

Recourse Debt

NRG Energy
Non-Recourse Debt

El Segundo Energy Center

75% various

3-mo. LIBOR

South Trent Wind LLC

South Trent Wind LLC

NRG Solar Roadrunner LLC
NRG Solar Alpine LLC

75%

75%

3.265% 3-mo. LIBOR

4.95% 3-mo. LIBOR

75%
85% various

4.313% 3-mo. LIBOR
3-mo. LIBOR

340

40

21

26
115

various

June 15, 2010

June 30, 2020

various

June 14, 2020

June 14, 2028

September 30, 2011
various

December 31, 2029
various

NRG Solar Avra Valley LLC

85%

2.333% 3-mo. LIBOR

46 November 30, 2012

November 30, 2030

NRG Marsh Landing
Utah Portfolio

DGPV 4

Other
EME Project Financings

Broken Bow

Cedro Hill

Crofton Bluffs

Laredo Ridge

Tapestry

Tapestry

Viento Funding II

Viento Funding II

Walnut Creek Energy

WCEP Holdings
Alta Wind Project Financings

AWAM
Total

75%
80% various

3.244% 3-mo. LIBOR
1-mo. LIBOR

85% various

3-mo. LIBOR

75% various

various

75% various

3-mo. LIBOR

90% various

3-mo. LIBOR

75% various

3-mo. LIBOR

75%

75%

50%

2.310% 3-mo. LIBOR

2.210% 3-mo. LIBOR

3.570% 3-mo. LIBOR

90% various

6-mo. LIBOR

90%

4.985% 6-mo. LIBOR

75% various

3-mo. LIBOR

90%

4.003% 3-mo. LIBOR

100%

2.470% 3-mo. LIBOR

$

295
223

95

653

—

55

136

36

75

June 28, 2013
various

June 30, 2023
September 30, 2036

various

various

various

various

various

various

various

various

various

various

March 31, 2011

March 31, 2026

146 December 30, 2011

December 21, 2021

60 December 21, 2021

December 21, 2029

148

65

239

45

17

3,876

various

July 11, 2023

June 28, 2013

June 28, 2013

various

June 30, 2028

May 31, 2023

May 21, 2023

May 22, 2013

May 15, 2031

The Company's AROs are primarily related to the future dismantlement of equipment on leased property and environmental 
obligations related to nuclear decommissioning, ash disposal, site closures, and fuel storage facilities. In addition, the Company 
has also identified conditional AROs for asbestos removal and disposal, which are specific to certain power generation operations.   

See Note 6, Nuclear Decommissioning Trust Fund, for a further discussion of the Company's nuclear decommissioning 
obligations.  Accretion for the nuclear decommissioning ARO and amortization of the related ARO asset are recorded to the Nuclear 
Decommissioning Trust Liability to the ratepayers and are not included in net income, consistent with regulatory treatment.

The following table represents the balance of ARO obligations as of December 31, 2017 and 2016, along with the additions, 

reductions and accretion related to the Company's ARO obligations for the year ended December 31, 2017:

Balance as of December 31, 2016

Revisions in estimates for current obligations

Additions

Spending for current obligations

Accretion — Expense
Accretion — Nuclear decommissioning

Balance as of December 31, 2017

(In millions)

735
(3)
9
(21)
35
16

771

$

$

Note 14 — Benefit Plans and Other Postretirement Benefits 

NRG sponsors and operates defined benefit pension and other postretirement plans.  

NRG pension benefits are available to eligible non-union and union employees through various defined benefit pension 
plans.  These benefits are based on pay, service history and age at retirement.  Most pension benefits are provided through tax-
qualified plans.  NRG also provides postretirement health and welfare benefits for certain groups of employees.  Cost sharing 
provisions vary by the terms of any applicable collective bargaining agreements.

NRG maintains two separate qualified pension plans, the NRG Pension Plan for Bargained Employees and the NRG Pension 
Plan. Employees of both NRG and GenOn participate in each of the pension plans, depending upon whether their employment is 
covered by a bargaining agreement. As controlled group members, ERISA requires that NRG and GenOn are jointly and severally 
liable for the NRG Pension Plan for Bargained Employees and the NRG Pension Plan, including pension liabilities associated 
with GenOn employees.

As described in Note 1, Nature of Business, and Note 3, Discontinued Operations, Acquisitions and Dispositions, NRG and 
GenOn entered into a Restructuring Support Agreement and various support agreements, including a transition services agreement, 
that provides for a restructuring and recapitalization of the GenOn Entities through a prearranged plan of reorganization and was 
approved by the Bankruptcy Court pursuant to an order of confirmation on December 12, 2017. In accordance with the agreements, 
NRG will retain GenOn's pension liability for service provided by GenOn employees prior to the completion of the reorganization. 
NRG determined that the retention of this liability is probable and has recorded the estimated accumulated pension benefit obligation 
as of December 31, 2017 of $92 million in other non-current liabilities with a corresponding loss from discontinued operations. 
The balance reflects a contribution of $13 million to the plans with respect to GenOn's employees paid in September 2017. NRG 
will also retain the liability for GenOn's post-employment and retiree health and welfare benefits, in an amount up to $25 million. 
Retention of this liability is probable and accordingly, NRG has recorded the $25 million in other non-current liabilities with a 
corresponding loss from discontinued operations as of December 31, 2017. NRG's obligation for both of these liabilities will be 
revalued through and at GenOn's emergence from bankruptcy, with NRG's obligation for the post-employment and retiree health 
and welfare plan capped at $25 million. 

NRG expects to contribute $31 million to the Company's pension plans in 2018. Of this amount, $13 million related to 

employees of GenOn.

178

179

 
 
 
 
 
 
 
 
NRG Defined Benefit Plans

Amounts recognized in NRG's balance sheets were as follows:

The annual net periodic benefit cost/(credit) related to NRG's pension and other postretirement benefit plans include the 

following components:

Service cost benefits earned
Interest cost on benefit obligation
Expected return on plan assets
Amortization of unrecognized net loss
Net periodic benefit cost

Service cost benefits earned
Interest cost on benefit obligation
Amortization of unrecognized prior service credit
Amortization of unrecognized net (gain)/loss
Curtailment gain
Net periodic benefit (credit)/cost

2017

Year Ended December 31,

Pension Benefits

2016

(In millions)

2015

26
43
(58)
4
15

$

$

30
43
(60)
2
15

$

$

Year Ended December 31,

Other Postretirement Benefits

2017

2016

(In millions)

2015

$

1
4
(9)
(1)
—
(5) $

2
6
(5)
—
—
3

$

$

32
53
(62)
2
25

3
9
(5)
1
(14)
(6)

$

$

$

$

A comparison of the pension benefit obligation, other postretirement benefit obligations and related plan assets for NRG's 

plans on a combined basis is as follows:

As of December 31,

Pension Benefits

2017

2016

Other Postretirement
Benefits

2017

2016

Benefit obligation at January 1
Service cost
Interest cost
Plan amendments
Actuarial loss/(gain)
Employee and retiree contributions
Benefit payments

Benefit obligation at December 31

Fair value of plan assets at January 1
Actual return on plan assets
Employee and retiree contributions
Employer contributions
Benefit payments

Fair value of plan assets at December 31
Funded status at December 31 — excess of obligation

over assets

Less: GenOn postretirement obligation(a)
Add: Retained obligation in bankruptcy proceeding(a)
Net obligation for NRG

$

1,241
26
43
—
77
—
(58)
1,329
953
173
—
36
(58)
1,104

(In millions)

$

1,196
30
43
—
40
—
(68)
1,241
916
72
—
33
(68)
953

$

128
1
4
(1)
6
3
(13)
128
—
—
3
10
(13)
—

(225) $
—

—
(225) $

(288) $
—

—
(288) $

(128) $
38
(25)
(115) $

$

$

$

178
2
6
(42)
(2)
3
(17)
128
—
—
3
14
(17)
—

(128)
46
(25)
(107)

Current liabilities
Less: GenOn other postretirement benefits(a)
Total current liabilities

Non-current liabilities
Less: GenOn other postretirement benefits(a)
Total non-current liabilities

As of December 31,

Pension Benefits

Other Postretirement
Benefits

2017

2016

2017

2016

$

$

$

$

— $
—
— $

225
—
225

$

$

(In millions)
— $
—
— $

288
—
288

$

$

7
(3)
4

121
(10)
111

$

$

$

$

8
(5)
3

120
(16)
104

(a)  The difference between GenOn's postretirement benefit obligation and NRG's retained obligation of $13 million and $21 million is presented in 

noncurrent liabilities for discontinued operations as of December 31, 2017 and 2016, respectively.

Of  the  amounts  recognized  in  NRG's  balance  sheet,  $92  million  and  $120  million  related  to  GenOn's  pension  benefits 
obligation as of December 31, 2017 and 2016, respectively, and $25 million related to GenOn's postretirement benefits obligation 
as of December 31, 2017 and 2016.

Amounts recognized in NRG's accumulated OCI that have not yet been recognized as components of net periodic benefit 

cost were as follows:

Net loss/(gain)
Prior service cost/(credit)
Total accumulated OCI
Less: GenOn (deconsolidated June 14, 2017)
Net accumulated OCI

As of December 31,

Pension Benefits

Other Postretirement
Benefits

2017

2016

2017

2016

$

$

$

53
3
56
(22)
34

$

$

$

(In millions)

94
3
97
(37)
60

$

$

$

(4) $
(37)
(41) $
10
(31) $

Other changes in plan assets and benefit obligations recognized in OCI were as follows:

Year Ended December 31,

Pension
Benefits

Other Postretirement
Benefits

2017

2016

2017

2016

Net actuarial (gain)/loss
Amortization of net actuarial (gain)/loss
Prior service credit
Amortization of prior service cost
Total recognized in OCI
Less: GenOn (deconsolidated June 14, 2017)

Net recognized in OCI

Less: GenOn (deconsolidated June 14, 2017)
Net recognized in net periodic pension (credit)/cost and

OCI

$

$

$

$

(37) $
(4)
—
—
(41) $
$
15
(26) $
15

(11) $

(In millions)

$

28
(2)
—
—
26
$
(17) $
$
9
(17)

$

$
$

$

6
1
(1)
9
15
2

17

3

24

$

13

$

(11)
(45)
(56)
8
(48)

(2)
—
(41)
5
(38)
3
(35)
3

39

(a)  The difference between GenOn's postretirement benefit obligation and NRG's retained obligation of $13 million and $21 million is presented in 

noncurrent liabilities for discontinued operations as of December 31, 2017 and 2016, respectively.

As a result of GenOn's deconsolidation during 2017, NRG reduced the loss recorded in other comprehensive income by $28 

million related to GenOn's pension and other postretirement benefits.

180

181

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The  Company's  estimated  unrecognized  loss  and  unrecognized  prior  service  cost  for  NRG's  pension  plan  that  will  be 
amortized from accumulated OCI to net periodic cost over the next fiscal year is less than $1 million. The Company's estimated 
unrecognized gain and unrecognized prior service credit for NRG's postretirement plan that will be amortized from accumulated 
OCI to net periodic cost over the next fiscal year is less than $1 million and $7 million, respectively.

The following table presents the balances of significant components of NRG's pension plan:

Projected benefit obligation
Accumulated benefit obligation
Fair value of plan assets

As of December 31,

Pension Benefits

2017

2016

$

(In millions)

$

1,329
1,255
1,104

1,241
1,174
953

NRG's market-related value of its plan assets is the fair value of the assets.  The fair values of the Company's pension plan 

assets by asset category and their level within the fair value hierarchy are as follows:

Common/collective trust investment — U.S. equity
Common/collective trust investment — non-U.S. equity
Common/collective trust investment — non-core assets
Common/collective trust investment — fixed income
Short-term investment fund

Subtotal fair value

Measured at net asset value practical expedient
Common/collective trust investment — non-U.S. equity
Common/collective trust investment — fixed income
Partnerships/joint ventures

Total fair value

Common/collective trust investment — U.S. equity
Common/collective trust investment — non-U.S. equity
Common/collective trust investment — global equity
Common/collective trust investment — fixed income
Short-term investment fund

Subtotal fair value

Measured at net asset value practical expedient
Common/collective trust investment — non-U.S. equity
Common/collective trust investment — fixed income
Partnerships/joint ventures

Total fair value

Fair Value Measurements as of December 31, 2017

Quoted Prices in
Active Markets for
Identical Assets
(Level 1)

Significant
Observable Inputs
(Level 2)

(In millions)

Total

$

$

— $
—
—
—
5
5

$

256
66
178
230
—
730

$

$

$

256
66
178
230
5
735

94
233
42
1,104

Fair Value Measurements as of December 31, 2016

Quoted Prices in
Active Markets for
Identical Assets
(Level 1)

Significant
Observable Inputs
(Level 2)

(In millions)

Total

$

$

— $
—
—
—
3
3

$

283
71
104
190
—
648

$

$

$

283
71
104
190
3
651

78
193
31
953

In accordance with ASC 820, the Company determines the level in the fair value hierarchy within which each fair value 
measurement in its entirety falls, based on the lowest level input that is significant to the fair value measurement in its entirety.  
The fair value of the common/collective trust investments is valued at fair value which is equal to the sum of the market value of 
all of the fund's underlying investments.  Certain common/collective trust investments have readily determinable fair value as 
they  publish  daily  net  asset  value,  or  NAV,  per  share  and  are  categorized  as  Level 2.    Certain  other  common/collective  trust 
investments and partnerships/joint ventures use NAV per share, or its equivalent, as a practical expedient for valuation, and thus 
have been removed from the fair value hierarchy table.

The following table presents the significant assumptions used to calculate NRG's benefit obligations:

Weighted-Average Assumptions
Discount rate
Rate of compensation increase

Health care trend rate

As of December 31,

Pension Benefits

Other Postretirement Benefits

2017

2016

2017

2016

3.71%
3.00%

—

4.26%
3.00%

—

3.71%
N/A
8.2% grading to
4.5% in 2025

4.29%
N/A
7.0% grading to
5.0% in 2025

The following table presents the significant assumptions used to calculate NRG's benefit expense:

Pension Benefits

Other Postretirement Benefits

As of December 31,

Weighted-Average
Assumptions

Discount rate

Expected return on plan

assets

Rate of compensation

increase

2017

2016

2015

2017

2016

2015

4.26%

4.52%

4.16%

4.29%

4.55%

4.20%

6.85%

6.65%

6.36%

3.00%

3.00%

3.45%

—

—

—

—

—

—

Health care trend rate

—

—

7.0% grading to
5.0% in 2025

7.25% grading
to 5.0% in 2025

8.6% grading to
5.0% in 2023

—

NRG uses December 31 of each respective year as the measurement date for the Company's pension and other postretirement 
benefit plans.  The Company sets the discount rate assumptions on an annual basis for each of NRG's defined benefit retirement 
plans as of December 31.  The discount rate assumptions represent the current rate at which the associated liabilities could be 
effectively settled at December 31.  The Company utilizes the Aon Hewitt AA Above Median, or AA-AM, yield curve to select 
the appropriate discount rate assumption for each retirement plan.  The AA-AM yield curve is a hypothetical AA yield curve 
represented by a series of annualized individual spot discount rates from 6 months to 99 years.  Each bond issue used to build this 
yield curve must be non-callable, and have an average rating of AA when averaging available Moody's Investor Services, Standard 
& Poor's and Fitch ratings.

NRG employs a total return investment approach, whereby a mix of equities and fixed income investments are used to 
maximize the long-term return of plan assets for a prudent level of risk.  Risk tolerance is established through careful consideration 
of  plan  liabilities,  plan  funded  status,  and  corporate  financial  condition.    The  Investment  Committee  reviews  the  asset  mix 
periodically and as the plan assets increase in future years, the Investment Committee may examine other asset classes such as 
real estate or private equity.  NRG employs a building block approach to determining the long-term rate of return assumption for 
plan assets, with proper consideration given to diversification and rebalancing.  Historical markets are studied and long-term 
historical  relationships  between  equities  and  fixed  income  are  preserved,  consistent  with  the  widely  accepted  capital  market 
principle that assets with higher volatility generate a greater return over the long run.  Current factors such as inflation and interest 
rates are evaluated before long-term capital market assumptions are determined.  Peer data and historical returns are reviewed to 
check for reasonableness and appropriateness.

In 2016, NRG changed the approach utilized to estimate the service cost and interest cost components of net periodic benefit 
cost for pension and postretirement benefit plans. Historically, the Company estimated these components by using a single weighted 
average discount rate derived from the yield curve used to measure the benefit obligation. The Company has elected to use a spot 
rate approach in the estimation of the components of benefit cost by applying specific spot rates along the yield curve to the 
relevant projected cash flows, as this provides a better estimate of service and interest costs. This election is considered a change 
in estimate and, accordingly, has been accounted for starting in 2016. This change does not affect the measurement of NRG's total 
benefit obligation. 

182

183

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The target allocations of NRG's pension plan assets were as follows for the year ended December 31, 2017:

OCI related to its 44% interest in STP:

The Company has recognized the following in its statement of financial position, statement of operations and accumulated 

U.S. equity
Non-U.S. equity
Non-core assets
U.S. fixed income

22%
14%
19%
45%

Plan  assets  are  currently  invested  in  a  diversified  blend  of  equity  and  fixed-income  investments.    Furthermore,  equity 
investments are diversified across U.S., non-U.S., global, and emerging market equities, as well as among growth, value, small 
and large capitalization stocks.

Investment risk and performance are monitored on an ongoing basis through quarterly portfolio reviews of each asset fund 
class to a related performance benchmark, if applicable, and annual pension liability measurements.  Performance benchmarks 
are composed of the following indices:  

As of December 31,

Pension Benefits

Other Postretirement Benefits

2017

2016

2017

2016

Funded status — STPNOC benefit plans
Net periodic benefit cost/(credit)
Other changes in plan assets and benefit obligations
recognized in other comprehensive (loss)/income

$

(76) $
8

(6)

Defined Contribution Plans

(In millions)
(74) $
7

11

(24) $
(3)

5

(23)
(2)

(1)

NRG's employees are also eligible to participate in defined contribution 401(k) plans.

Asset Class

Index

The Company's contributions to these plans were as follows:

U.S. equities

Non-U.S. equities
Non-core assets(a)
Fixed income securities

Dow Jones U.S. Total Stock Market Index

MSCI All Country World Ex-U.S. IMI Index
Various (per underlying asset class)

Barclays Capital Long Term Government/Credit Index &

Barclays Strips 20+ Index

Company contributions to defined contribution plans

$

56

$

55

$

53

Year Ended December 31,

2017

2016

(In millions)

2015

(a)  Non-Core Assets are defined as diversifying asset classes approved by the Investment Committee that are intended to enhance returns and/or reduce volatility 
of the U.S. and non-U.S. equities. Asset classes considered Non-Core include, but may not be limited to: Emerging Market Equity, Emerging Market Debt, 
Non-US Developed Market Small Cap, High Yield Fixed Income, Real Estate, Bank Loans, Global Infrastructure and other Alternatives. 

NRG's expected future benefit payments for each of the next five years, and in the aggregate for the five years thereafter, 

Note 15 — Capital Structure 

For the period from December 31, 2014 to December 31, 2017, the Company had 10,000,000 shares of preferred stock 
authorized, and 500,000,000 shares of common stock authorized. The following table reflects the changes in NRG's common 
shares issued and outstanding for each period presented: 

are as follows:

2018
2019
2020
2021
2022
2023-2027

Other Postretirement Benefit

Pension
Benefit Payments

Benefit Payments

(In millions)

Medicare Prescription
Drug Reimbursements

$

$

68
71
75
79
82
421

$

7
8
8
8
8
33

—
—
—
—
—
1

Assumed health care cost trend rates have a significant effect on the amounts reported for the health care plans. A one-

percentage-point change in assumed health care cost trend rates would have the following effect:

Effect on total service and interest cost components
Effect on postretirement benefit obligation

STP Defined Benefit Plans

1-Percentage-
Point Increase

1-Percentage-
Point Decrease

$

(In millions)

$

1
9

—
(8)

NRG has a 44% undivided ownership interest in STP, as discussed further in Note 27, Jointly Owned Plants.  STPNOC, 
which operates and maintains STP, provides its employees a defined benefit pension plan as well as postretirement health and 
welfare benefits.  Although NRG does not sponsor the STP plan, it reimburses STPNOC for 44% of the contributions made towards 
its retirement plan obligations.  For the year ended December 31, 2017, NRG reimbursed STPNOC $8 million towards its defined 
benefit plans. For the year ended December 31, 2016, NRG reimbursed STPNOC $7 million towards its defined benefit plans. In 
2018, NRG expects to reimburse STPNOC $6 million for its contribution towards the plans. 

Balance as of December 31, 2014

Shares issued under ESPP
Shares issued under LTIPs
Share repurchases

Balance as of December 31, 2015

Shares issued under ESPP
Shares issued under LTIPs

Balance as of December 31, 2016

Shares issued under ESPP
Shares issued under LTIPs

Balance as of December 31, 2017

Common Stock

Issued
415,506,176
—
1,433,774
—
416,939,950
—
643,875
417,583,825
—
739,309
418,323,134

Common

Treasury

(78,843,552)
283,139
—
(24,189,495)
(102,749,908)
609,094
—
(102,140,814)
560,769
—
(101,580,045)

Outstanding

336,662,624
283,139
1,433,774
(24,189,495)
314,190,042
609,094
643,875
315,443,011
560,769
739,309
316,743,089

The following table summarizes NRG's common stock reserved for the maximum number of shares potentially issuable 

based on the conversion and redemption features of the long-term incentive plans as of December 31, 2017:

Equity Instrument

Long-term incentive plans

Common Stock
Reserve Balance

19,597,433

Common stock dividends — In 2015, NRG paid quarterly dividends on the Company's common stock of $0.145 per share, 
or $0.58 per share on an annualized basis.  In 2016, as part of the 2016 Capital Allocation Program, the Company decreased its 
annual common stock dividend by 79% to $0.12 per share for 2016 and 2017. The following table lists the dividends paid per 
common share during 2017, 2016 and 2015: 

184

185

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2017
2016
2015

Fourth
Quarter

Third
Quarter

Second
Quarter

First
Quarter

$
$
$

0.030
0.030
0.145

$
$
$

0.030
0.030
0.145

$
$
$

0.030
0.030
0.145

$
$
$

0.030
0.145
0.145

On January 19, 2018, NRG declared a quarterly dividend on the Company's common stock of $0.03 per share, or $0.12 per 

share on an annualized basis, payable on February 15, 2018, to stockholders of record as of February 1, 2018.  

 Employee Stock Purchase Plan — Under the ESPP, eligible employees may elect to withhold up to 10% of their eligible 
compensation to purchase shares of NRG common stock at the lesser of 85% of its fair market value on the offering date or 85%
of the fair market value on the exercise date.  An offering date occurs each January 1 and July 1.  An exercise date occurs each 
June 30 and December 31. As of December 31, 2017, there remained 3,107,050 shares of treasury stock reserved for issuance 
under the ESPP, and in January of 2018, 175,862 shares of common stock were issued to employee accounts from treasury stock 
for the offering period of July 1, 2017 to December 31, 2017. Beginning January 2018, NRG suspended the ESPP.

Share Repurchases — During 2015 and 2014, the Company's board of directors authorized share repurchases of $481 million

of its common stock, which were made as follows:

Board Authorized Share Repurchases

Fourth Quarter 2014

First Quarter 2015

Second Quarter 2015

Third Quarter 2015

Fourth Quarter 2015

Total Board Authorized Share Repurchases

Total number of
shares purchased

Average 
price paid 
per share (a)

Amounts paid for 
shares purchased  
(in millions) (a)

1,624,360

$

26.95

$

3,146,484

4,379,907

11,104,184

5,558,920

25,813,855

25.15

24.53

15.06

15.03

$

44

79

107

167

84

481

(a)  The average price paid per share and amounts paid for shares purchased exclude the commissions of $0.015 per share paid in connection with the share 

repurchase.

Preferred Stock

2.822% Redeemable Preferred Stock

Preferred Stock 

On May 24, 2016, NRG entered an agreement with Credit Suisse Group to  repurchase 100% of the outstanding shares of its 
$344.5 million 2.822% preferred stock.  On June 13, 2016, the Company completed the repurchase from Credit Suisse of 100%
of the outstanding shares at a price of $226 million. The transaction resulted in a gain on redemption of $78 million, measured as 
the difference between the fair value of the cash consideration paid upon redemption of $226 million and the carrying value of 
the preferred stock at the time of the redemption of $304 million. This amount is reflected in net income/(loss) available to NRG 
common stockholders in the calculation of earnings per share. 

The  following  table  reflects  the  changes  in  the  Company's  redeemable  preferred  stock  balance  for  the  years  ended 

December 31, 2017, 2016, and 2015:

Balance as of December 31, 2014

Accretion to redemption value
Balance as of December 31, 2015

Accretion to redemption value

Repurchase of 2.822% redeemable preferred stock

Gain on redemption of 2.822% redeemable preferred stock

Balance as of December 31, 2016

Balance as of December 31, 2017

(In millions)

$

$

291

11

302

2
(226)
(78)
—

—

Note 16 — Investments Accounted for by the Equity Method and Variable Interest Entities 

Entities that are not Consolidated

NRG accounts for the Company's significant investments using the equity method of accounting.  NRG's carrying value of 
equity investments can be impacted by impairments, unrealized gains and losses on derivatives and movements in foreign currency 
exchange rates, as well as other adjustments.

The following table summarizes NRG's equity method investments as of December 31, 2017:

Name

Avenal Solar Holdings LLC (a)
Desert Sunlight Investment Holdings, LLC (a)
Elkhorn Ridge Wind, LLC (a)
GenConn Energy LLC (a)
Four Brothers Solar, LLC (a)(c)
Granite Mountain Holdings, LLC (a)(c)
Iron Springs Holdings, LLC (a)(c)
Midway-Sunset Cogeneration Company
San Juan Mesa Wind Project, LLC (a)
Watson Cogeneration Company
Gladstone Power Station (b)
Other(d)
Total equity investments in affiliates

(a) Equity method investments owned by NRG Yield
(b) Gladstone Power Station is located in Australia 
(c) Economic interest based on cash to be distributed
(d) Refer to Note 10 - Asset Impairments for discussion of NRG's investment in Petra Nova Parish Holdings, LLC. 

Undistributed earnings from equity investments

Variable Interest Entities

Economic
Interest

Investment
Balance

(In millions)

50.0% $
25.0%
47.0%
50.0%
50.0%
50.0%
50.0%
50.0%
75.0%
49.0%
37.5%
Various

$

(6)
272
73
102
213
78
54
16
66
21
139
10
1,038

As of December 31,

2017

2016

$

(In millions)
120

$

101

NRG accounts for its interests in certain entities that are considered VIEs under ASC 810, for which NRG is not the primary 

beneficiary, under the equity method.

Utility-Scale Solar Portfolio — As described in Note 3, Discontinued Operations, Acquisitions and Dispositions, on November 
2, 2016, the Company acquired equity interests in a tax equity financed portfolio comprised of 530 MW of mechanically-complete 
solar assets located in Utah, and subsequently sold these interests to NRG Yield, Inc. on March 27, 2017. These equity interests in 
Four Brothers Solar, LLC, Granite Mountain Holdings, LLC, and Iron Springs Holdings, LLC are accounted for as equity method 
investments as the Company does not have a controlling financial interest. The assets reached commercial operations during the 
fourth quarter of 2016 and have 20-year PPAs with PacifiCorp. NRG's maximum exposure to loss is limited to its equity investment, 
which was $345 million as of December 31, 2017.

GenConn — NRG owns a 50% interest in GenConn, a limited liability company formed to construct, own and operate two

190-MW peaking generation facilities in Connecticut at NRG's Devon and Middletown sites. 

GenConn has a $237 million note with an interest rate of 4.73% and a maturity date of July 2041 and a 5-year, $35 million
working capital facility which can be used to issue letters of credit at an interest rate of 1.875%.  As of December 31, 2017, $204 
million was outstanding under the note and $14 million of letters of credit issued under the working capital facility. The note is 
secured by all of the GenConn assets.  NRG's maximum exposure to loss is limited to its equity investment, which was $102 million
as of December 31, 2017.

186

187

 
 
 
 
 
 
 
 
 
Other Equity Investments

Note 17 — Earnings/(Loss) Per Share 

Gladstone — Through a joint venture, NRG owns a 37.5% interest in Gladstone, a 1,613 MW coal-fueled power generation 
facility in Queensland, Australia. The power generation facility is managed by the joint venture participants and the facility is 
operated by NRG. Operating expenses incurred in connection with the operation of the facility are funded by each of the participants 
in proportion to their ownership interests. Coal is sourced from local mines in Queensland. NRG and the joint venture participants 
receive their respective share of revenues directly from the off takers in proportion to the ownership interests in the joint venture. 
Power generated by the facility is primarily sold to an adjacent aluminum smelter, with excess power sold to the Queensland 
Government owned utility under long term supply contracts. NRG's investment in Gladstone was $139 million as of December 31, 
2017.   

Entities that are Consolidated

The Company has a controlling financial interest in certain entities which have been identified as VIEs under ASC 810.  These 
arrangements are primarily related to tax equity arrangements entered into with third-parties in order to finance the cost of solar 
energy systems under operating leases and wind facilities eligible for certain tax credits as further described in Note 2, Summary 
of Significant Accounting Policies.  For one of the tax equity arrangements, the Company has a deficit restoration obligation equal 
to $110 million as of December 31, 2017, which would be required to be funded if the arrangement were to be dissolved.  

The summarized financial information for the Company's consolidated VIEs consisted of the following:

(In millions)

Current assets

Net property, plant and equipment

Other long-term assets

Total assets

Current liabilities

Long-term debt

Other long-term liabilities

Total liabilities

Redeemable noncontrolling interests

Noncontrolling interests

Net assets less noncontrolling interests

December 31, 2017

December 31, 2016

$

118

$

2,337

658

3,113

96

661

209

966

78

507

87

1,534

954

2,575

59

442

183

684

46

529

$

1,562

$

1,316

Basic earnings/(loss) per common share is computed by dividing net income/(loss) less accumulated preferred stock dividends 
by the weighted average number of common shares outstanding. Shares issued and treasury shares repurchased during the year 
are weighted for the portion of the year that they were outstanding. Diluted earnings/(loss) per share is computed in a manner 
consistent with that of basic earnings/(loss) per share while giving effect to all potentially dilutive common shares that were 
outstanding during the period. 

Dilutive effect for equity compensation and other equity instruments — The outstanding non-qualified stock options, non-
vested restricted stock units, and market stock units are not considered outstanding for purposes of computing basic earnings/
(loss) per share. However, these instruments are included in the denominator for purposes of computing diluted earnings/(loss) 
per  share  under  the  treasury  stock  method.   The  if-converted  method  was  used  to  determine  the  dilutive  effect  of  embedded 
derivatives  in  the  Company's  2.822%  Preferred  Stock  for  the  year  ended  December  31,  2015.  During  2016,  the  Company 
repurchased 100% of the outstanding shares of its 2.822% preferred stock.

The reconciliation of NRG's basic earnings/(loss) per share to diluted earnings/(loss) per share is shown in the following 

table:

Basic and diluted loss per share attributable to NRG common stockholders

Net loss attributable to NRG Energy, Inc.

Dividends for preferred shares

Gain on redemption of 2.822% redeemable perpetual preferred shares

Loss Available to Common Stockholders

Weighted average number of common shares outstanding

Loss per weighted average common share — basic and diluted 

Year Ended December 31,

2017

2016

2015

(In millions, except per share amounts)

$

$

$

(2,153) $

(774) $

(6,382)

—

—

5

(78)

20

—

(2,153) $

(701) $

(6,402)

317

316

329

(6.79) $

(2.22) $

(19.46)

The following table summarizes NRG's outstanding equity instruments that are anti-dilutive and were not included in the 

computation of the Company's diluted loss per share:

Equity compensation

Embedded derivative of 2.822% redeemable perpetual preferred stock

Total

Year Ended December 31,

2017

2016

2015

(In millions of shares)

5

—

5

5

—

5

6

16

22

188

189

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  Note 18 — Segment Reporting 

For the Year Ended December 31, 2016

The Company's segment structure reflects how management currently makes financial decisions and allocates resources. 
The Company's businesses are segregated as follows: Generation, which includes generation, international and BETM; Retail, 
which  includes  Mass  customers  and  Business  Solutions,  which  includes  C&I  customers  and  other  distributed  and  reliability 
products; Renewables, which includes solar and wind assets, excluding those in NRG Yield; NRG Yield; and corporate activities.  
Intersegment sales are accounted for at market. 

NRG Yield  includes  certain  of  the  Company's  contracted  generation  assets.    During  2017,  NRG Yield  acquired  several  
projects totaling 555 MW for cash consideration of approximately $245 million from NRG. These acquisitions were treated as a 
transfer of entities under common control and accordingly, the financial information for years ended December 31, 2017, 2016, 
and 2015 have been recast to reflect these changes.

On June 14, 2017, as described in Note 3, Discontinued Operations, Acquisitions and Dispositions, NRG deconsolidated 
GenOn for financial reporting purposes. The financial information for years ended December 31, 2017, 2016, and 2015  have been 
recast to present GenOn as discontinued operations within the corporate segment. 

NRG’s  chief  operating  decision  maker,  its  chief  executive  officer,  evaluates  the  performance  of  its  segments  based  on 
operational measures including adjusted earnings before interest, taxes, depreciation and amortization, or Adjusted EBITDA, free 
cash flow and capital for allocation, as well as net income/(loss) and net income/(loss) attributable to NRG Energy, Inc.

During the years ended December 31, 2017, 2016 and 2015, the Company had no customer which comprised more than 

10% of the Company's consolidated revenues.

For the Year Ended December 31, 2017

Generation(a)

Retail (a)

Renewables(a)

NRG 
Yield(a) Corporate(a)

Eliminations 

Total

Generation(a) Retail  (a) Renewables(a)

Operating revenues(a)

Operating expenses

Depreciation and amortization

Impairment losses

Development costs

$

3,833

$

6,335

$

3,545

516

430

15

5,164

111

1

4

Total operating cost and expenses

4,506

5,280

   Other income - affiliate

  Loss on sale of assets

Operating (loss)/income

Equity in (losses)/earnings of unconsolidated

affiliates

Impairment losses on investments

Other income, net

Loss on debt extinguishment

Interest expense

(Loss)/income from continuing operations
before income taxes
Income tax (benefit)/expense

Net (loss)/income from continuing

operations

Income from discontinued operations, net of
income tax

—

—

—

(1)

(673)

1,054

(5)

(142)

21

—

(26)

(825)

(1)

(824)

—

(824)

—

—

(6)

—

6

1,054

1

1,053

—

1,053

NRG 
Yield(a)
(In millions)
1,035
$

$

Corporate(a)

Eliminations

Total

77

$

(1,174) $

10,512

325

303

185

—

813

—

—

222

60

—

3

—

(284)

1

(1)

2

—

2

323

57

32

30

442

193

(79)

(251)

13

(21)

19

(142)

(495)

(877)

26

(903)

92

(811)

(1,178)

—

—

—

8,396

1,172

702

89

(1,178)

10,359

—

4

17

—

(4)

—

2

19

—

19

19

193

(80)

266

27

(268)

34

(142)

(895)

(978)

5

(983)

92

(891)

406

217

185

54

40

496

—

—

(90)

(58)

(105)

1

—

(98)

(350)

(20)

(330)

—

(330)

$

(In millions)
$ 1,009

424

$

14

$

(971) $

10,629

Net (Loss)/Income

$

$

3,773

3,300

377

1,504

13

5,194

—

20

(1,401)

(14)

(74)

22

—

(29)

(1,496)

2

6,380

5,372

117

7

2

5,498

—

—

882

—

—

1

—

(6)

877

(9)

211

196

154

45

606

—

(5)

(187)

—

—

—

(1)

(98)

(286)

(20)

348

334

44

—

726

—

—

283

71

—

4

(3)

(306)

49

72

220

32

—

7

259

87

1

(157)

6

(5)

11

(49)

(451)

(645)

(37)

(964)

—

—

—

8,487

1,056

1,709

67

(964)

11,319

—

—

(7)

(32)

—

—

—

—

(39)

—

87

16

(587)

31

(79)

38

(53)

(890)

(1,540)

8

Less: Net (loss)/income attributable to

noncontrolling interests and redeemable
noncontrolling interests

Net (loss)/income attributable to

NRG Energy, Inc.

Balance sheet
Equity investments in affiliates
Capital expenditures(b)
Goodwill
Total assets

(a) Inter-segment sales and net derivative gains
and losses included in operating revenues

(b) Includes accruals.

—

(2)

(13)

(54)

18

(66)

(117)

$

$

$

(824) $

1,055

$

(317) $

56

204

522

276

$

— $

26

$

886

12

374

330

12

23

—

$

$

(829) $

85

$

(774)

4

$

— $

1,120

110

—

—

—

997

662

13,514

$

2,332

$

4,921

$

8,962

$

11,891

$

(10,938) $

30,682

$

1,033

$

4

$

24

$

8

$

105

$

— $

1,174

$

(1,498) $

886

$

(266) $

(23) $

(608) $

(39) $

(1,548)

—

(1,498)

—

—

886

2

—

(266)

—

(23)

(789)

(1,397)

— $

(789)

(39)

(2,337)

(103)

(87)

(4)

8

(184)

(1,498) $

884

$

(163) $

64

$

(1,393) $

(47) $

(2,153)

179

481

165

$

— $

4

$

852

$

82

374

521

—

31

—

3

12

—

$

— $

—

—

1,038

1,127

539

7,209

$

2,630

$

5,129

$ 8,283

$

8,919

$

(8,852) $

23,318

$

$

$

$

910

$

5

$

31

$ — $

25

$

— $

971

190

191

Operating revenues(a)
Operating expenses

Depreciation and amortization

Impairment losses

Development costs

Total operating cost and expenses

   Other income - affiliate

Gain/(loss) on sale of assets

Operating (loss)/income

Equity in (losses)/earnings of unconsolidated

affiliates

Impairment losses on investments

Other income, net

Loss on debt extinguishment

Interest expense
(Loss)/income from continuing operations
before income taxes
Income tax expense/(benefit)
Net (loss)/income from continuing operations

Loss from discontinued operations, net of
income tax

Net (Loss)/Income

Less: Net income/(loss) attributable to

noncontrolling interests and redeemable
noncontrolling interests
Net (loss)/income attributable to

NRG Energy, Inc.

Balance sheet

Equity investments in affiliates
Capital expenditures (b) 
Goodwill
Total assets

(a) Inter-segment sales and net derivative gains
and losses included in operating revenues

 (b) Includes accruals.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
For the Year Ended December 31, 2015

Note 19 — Income Taxes 

Renewables(a) NRG Yield(a) Corporate(a)
(In millions)
$

968

383

38

$

$

Generation(a)

Retail(a)

$

5,179

$

6,913

4,198

693

4,655

26

9,572

—

21

(4,372)

10

(14)

18

—

—

(25)

(4,383)

—

$

(4,383)

—

(4,383)

6,138

132

36

4

6,310

—

—

603

—

—

(4)

—

—

2

601

1

600

—

600

Operating revenues(a)

Operating expenses

Depreciation and amortization

Impairment losses

Development costs

Total operating costs and expenses

Other income - affiliate

Gain on postretirement benefits curtailment

Operating (loss)/income

Equity in earnings/(losses)of unconsolidated

affiliates

Impairment losses on investments

Other income, net

Loss on sale of equity method investment

Loss on debt extinguishment

Interest expense

(Loss)/income from continuing operations
before income taxes
Income tax expense/(benefit)

Net (loss)/income from continuing

operations

Loss from discontinued operations, net of

income tax

Net (Loss)/Income

Less: Net income/(loss) attributable to

noncontrolling interests and redeemable
noncontrolling interests

Net (loss)/income attributable to

NRG Energy, Inc.

(a) Inter-segment sales and net derivative gains
and losses included in operating revenues

Eliminations

Total

$

(1,153) $ 12,328

(1,135)

10,228

—

22

—

1,351

4,860

154

(1,113)

16,593

—

—

193

21

502

47

133

63

745

193

—

(514)

(40)

(4,051)

—

(42)

13

(14)

19

(574)

(1,112)

1,350

(2,462)

(105)

(2,567)

2

—

(7)

—

—

6

(39)

—

36

(56)

26

(14)

10

(937)

(4,986)

1,345

(39)

(6,331)

—

(39)

(105)

(6,436)

187

176

13

61

437

—

—

(54)

(7)

—

3

—

—

(79)

(137)

(18)

(119)

—

(119)

338

303

1

—

642

—

—

326

31

—

3

—

(9)

(267)

84

12

72

—

72

19

The income tax provision from continuing operations consisted of the following amounts:

Current
State

Total — current
Deferred

U.S. Federal
State
Foreign

Total — deferred

Total income tax expense

Effective tax rate

Year Ended December 31,

2017

2016

2015

(In millions, except percentages)

$

$

$

$

19
19

(6)
(7)
2
(11)
8
(0.5)%

$

$

6
6

3
(6)
2
(1)
5
(0.5)%

9
9

1,020
315
1
1,336
1,345
(27.0)%

The following represents the domestic and foreign components of loss before income tax expense:

U.S. 
Foreign
Total

Year Ended December 31,

2017

2016

(In millions)

2015

$

$

(1,557) $
17
(1,540) $

(989) $
11
(978) $

(4,997)
11
(4,986)

—

—

6

(37)

(42)

(54)

A reconciliation of the U.S. federal statutory rate of 35% to NRG's effective rate is as follows:

$

$

(4,383) $

600

$

(125) $

53

$

(2,530) $

3

$

(6,382)

896

$

6

$

31

$

29

$

191

$

— $

1,153

Loss before income taxes
Tax at 35%
State taxes
Foreign operations
Federal and state tax credits, excluding PTCs
Tax Act - corporate income tax rate change
Valuation allowance due to corporate income tax rate change
Valuation allowance - current period activities
Impact of non-taxable equity earnings
Book goodwill impairment
Net interest accrued on uncertain tax positions
Production tax credits
Recognition of uncertain tax benefits
Tax expense attributable to consolidated partnerships
State rate change including true-up to current period activity
AMT refundable credit
Other

Income tax expense
Effective income tax rate

Year Ended December 31,

2017

2016

2015

(In millions, except percentages)

$

$

(1,540)
(539)
19
2
—
733
(660)
482
(5)
30
—
(20)
(5)
4
18
(64)
13
8
(0.5)%

$

$

$

$

(978)
(342)
—
10
—
—
—
398
22
—
1
(26)
2
(1)
(59)
—
—
5
(0.5)%

(4,986)
(1,745)
(215)
1
(5)
—
—
3,023
(10)
340
(3)
(33)
(15)
12
(7)
—
2
1,345
(27.0)%

192

193

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
For the year ended December 31, 2017, NRG's overall effective tax rate was different than the statutory rate of 35% primarily 
due to tax expense recorded from the revaluation of the existing net deferred tax asset and state taxes, partially offset by the change 
in valuation allowance, establishing the AMT credit receivable and the generation of PTC’s from various wind facilities. The tax 
expense recorded for revaluation of the net deferred tax asset is required to reflect the reduction in the corporate income tax rate 
from 35% to 21% in accordance with the Tax Cuts and Jobs Act of 2017, or the Tax Act.

For the year ended December 31, 2016, NRG's overall effective tax rate was different than the statutory rate of 35% primarily 
due to the change in valuation allowance, the impact of non-taxable equity earnings and current state tax expense, partially offset 
by the generation of PTCs from various wind facilities.

 For the year ended December 31, 2015,  NRG's overall effective tax rate was different than the statutory rate of 35% primarily 
due to recording of a valuation allowance on the federal and certain state net deferred tax assets that may not be realizable under 
a “more likely than not” measurement. In addition, a portion of the book goodwill impairment is classified as a permanent reversal 
impacting the effective tax rate.

 The temporary differences, which gave rise to the Company's deferred tax assets and liabilities consisted of the following:

Deferred tax liabilities:
Emissions allowances
Derivatives, net
Cumulative translation adjustments
Investment in projects
Discount/premium on notes
Deferred financing costs
Discontinued operations
Total deferred tax liabilities

Deferred tax assets:

Deferred compensation, accrued vacation and other reserves
Difference between book and tax basis of property
Goodwill
Differences between book and tax basis of contracts
Pension and other postretirement benefits
Equity compensation
Bad debt reserve
U.S. capital loss carryforwards
U.S. Federal net operating loss carryforwards
Foreign net operating loss carryforwards
State net operating loss carryforwards
Foreign capital loss carryforwards
Federal and state tax credit carryforwards
Federal benefit on state uncertain tax positions
Intangibles amortization (excluding goodwill)
Derivatives, net
Inventory obsolescence
Other
Discontinued operations
Total deferred tax assets
Valuation allowance
Discontinued operations
Total deferred tax assets, net of valuation allowance

Net deferred tax asset

As of December 31,

2017

2016

(In millions)

$

15
15
—
231
2
2
—
265

141
596
38
68
74
10
14
1
596
66
140
1
376
7
101
—
12
—
—
2,241
(1,863)
—
378
113

$

31
—
11
378
5
2
6
433

256
530
83
60
122
11
12
1
728
63
106
1
446
12
115
106
5
7
2,093
4,757
(2,032)
(2,087)
638
205

$

$

The following table summarizes NRG's net deferred tax position:

As of December 31,

2017

2016

Net deferred tax asset — noncurrent
Net deferred tax liability — noncurrent
Net deferred tax asset

$

$

$

(In millions)
134
(21)
113

$

225
(20)
205

The primary driver for the decrease in the net deferred tax asset from $205 million to $113 million is the revaluation of the 
ending balance utilizing a 21% corporate income tax rate instead of a 35% corporate income tax rate pursuant to the Tax Act as 
of December 22, 2017.  NRG Energy, Inc.’s revaluation is completely offset by its valuation allowance.  Since NRG Yield, Inc. 
does not have a valuation allowance against its net deferred tax asset, its ending balance remains at December 31, 2017.  Additionally, 
due to GenOn's petition for bankruptcy on June 14, 2017, its inventory of deferreds is reclassed to discontinued operations for the 
year ended December 31, 2016 and is completely deconsolidated for the year ended December 31, 2017.

Deferred tax assets and valuation allowance

        Net deferred tax balance — As of December 31, 2017 and 2016, NRG recorded a net deferred tax asset of $1.9 billion and 
$2.2 billion, respectively. The Company believes the federal and certain state net deferred tax assets may not be realizable under 
a “more likely than not” measurement and as such, a valuation allowance has been recorded to reduce the asset accordingly. The 
Company assesses cumulative and forecasted pretax book earnings and the future reversal of existing taxable temporary differences, 
including the potential impacts of the recently enacted Tax Act. In December 2017, the SEC staff issued Staff Accounting Bulletin 
No. 118, which addresses how a company may recognize provisional amounts for the effect of the changes related to the Tax Act. 
Consistent with that guidance, the Company recognized provisional amounts based upon our interpretation of the tax laws and 
estimates which require significant judgments.

Based on the Company's assessment of positive and negative evidence, including available tax planning strategies, NRG 
believes  that  it  is  more  likely  than  not  that  a  benefit  will  not  be  realized  on  $1.8  billion  and  $2.0  billion  of  tax  assets  as  of 
December 31, 2017, and 2016, respectively, thus a valuation allowance has been recorded. The net deferred tax asset of $113 
million is predominantly due to the inclusion of NRG Yield Inc.'s net deferred tax asset consisting primarily of net operating losses.   

NOL  carryforwards — At  December 31,  2017,  the  Company  had  tax  effected  cumulative  domestic  NOLs  consisting  of 
carryforwards for federal income tax purposes of $596 million and state of $140 million.  The Company estimates it will need to 
generate future taxable income to fully realize the net federal deferred tax asset before expiration commencing in 2026. In addition, 
NRG has cumulative foreign NOL carryforwards of $66 million with no expiration date. 

        Valuation allowance — As of December 31, 2017, the Company's tax effected valuation allowance was $1.8 billion, consisting 
of domestic federal net deferred tax assets of approximately $1.5 billion, domestic state net deferred tax assets of $267 million, 
foreign net operating loss carryforwards of $66 million and foreign capital loss carryforwards of approximately $1 million. Based 
upon the assessment of cumulative and forecasted pretax book earnings, and the future reversal of existing taxable temporary 
differences, it was determined that a valuation allowance was required to be recorded during the year.

  Taxes Receivable and Payable

As of December 31, 2017, NRG recorded a current tax payable of $7 million that represents a tax liability due for state 
income taxes.  NRG has a tax receivable of $1 million, comprised of refunds due from state income tax estimated payments and 
return filings for 2017 and 2016, respectively.

Uncertain tax benefits

NRG has identified uncertain tax benefits whose after-tax value is $30 million for which, as of December 31, 2017 and 2016, 
NRG has recorded a non-current tax liability of $33 million and $37 million, respectively.  The Company recognizes interest and 
penalties  related  to  uncertain  tax  benefits  in  income  tax  expense.    During  the  year  ended  December 31,  2017,  the  Company 
recognized an expense of $1 million in interest.  As of December 31, 2017 and 2016, NRG had cumulative interest and penalties 
related to these uncertain tax benefits of $3 million and $4 million, respectively.

        Tax jurisdictions — NRG is subject to examination by taxing authorities for income tax returns filed in the U.S. federal 
jurisdiction and various state and foreign jurisdictions including operations located in Australia. 

194

195

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The Company is no longer subject to U.S. federal income tax examinations for years prior to 2015.  With few exceptions, 

Restricted Stock Units

state and local income tax examinations are no longer open for years before 2010.

The following table reconciles the total amounts of uncertain tax benefits:

Balance as of January 1
Increase due to current year positions
Decrease due to prior year positions
Decrease due to settlements and payments
Uncertain tax benefits as of December 31

Note 20 — Stock-Based Compensation 

NRG Energy, Inc. Long-Term Incentive Plan

As of December 31,

2017

2016

(In millions)

$

$

34
4
(8)
—
30

$

$

32
8
—
(6)
34

On April 27, 2017, the NRG LTIP was amended to increase the number of shares available for issuance by 3,000,000. As of 
December 31, 2017 and 2016, a total of 25,000,000 and 22,000,000 shares of NRG common stock were authorized for issuance 
under the NRG LTIP, respectively. There were 8,724,595 and 7,487,058 shares of common stock remaining available for grants 
under the NRG LTIP as of December 31, 2017 and 2016, respectively. The NRG LTIP is subject to adjustments in the event of 
reorganization, recapitalization, stock split, reverse stock split, stock dividend, and a combination of shares, merger or similar 
change in NRG's structure or outstanding shares of common stock.

Upon adoption of the amended NRG LTIP effective April 27, 2017, no shares of NRG common stock remain available for 
future issuance under the NRG GenOn LTIP as of December 31, 2017. There were 5,558,390 shares of NRG common stock 
authorized for issuance under the NRG GenOn LTIP as of December 31, 2016. As of December 31, 2017 and 2016, there were 
1,369,880 and 960,904 shares of common stock remaining available for grants under the NRG GenOn LTIP, respectively.

Non-Qualified Stock Options

NQSOs granted under the NRG LTIP and the NRG GenOn LTIP typically have three-year graded vesting schedules beginning 
on the grant date and become exercisable at the end of the requisite service period. NRG recognizes compensation costs for NQSOs 
over the requisite service period for the entire award. The maximum contractual term is 10 years for NRG's outstanding NQSOs. 
No NQSOs were granted in 2017, 2016 or 2015.

The following table summarizes the Company's NQSO activity and changes during the year:

Outstanding at December 31, 2016

Forfeited
Exercised

Outstanding at December 31, 2017
Exercisable at December 31, 2017

Shares(a)

Weighted Average
Exercise Price

$

1,522,919
(50,001)
(187,060)
1,285,858
1,285,858

25.03
29.35
20.71
25.49
25.49

Weighted Average
Remaining Contractual
Term
(In years)

Aggregate
Intrinsic Value

 (In millions)

3

$

3
3

—

6
6

(a) As of December 31, 2017, 51,207 NQSOs granted to employees of GenOn remain outstanding and exercisable.

The following table summarizes the total intrinsic value of options exercised and the cash received from the exercises of 

options:

Total intrinsic value of options exercised
Cash received from options exercised

2017

Year Ended December 31,
2016
(In millions)

2015

$

$

1
4

— $
—

2
9

There were no options exercised during the year ended December 31, 2016. 

As of December 31, 2017, RSUs granted under the Company's LTIPs typically have three-year graded vesting schedules 
beginning on the grant date. Fair value of the RSUs is based on the closing price of NRG common stock on the date of grant.  The 
following table summarizes the Company's non-vested RSU awards and changes during the year:

Non-vested at December 31, 2016

Granted
Forfeited
Vested

Non-vested at December 31, 2017
(a) As of December 31, 2017, 20,822 RSUs granted to GenOn employees remain outstanding. 

Units(a)
1,980,141
1,247,075
(176,132)
(673,271)
2,377,813

Weighted Average Grant-
Date Fair Value per Unit
19.29
$
12.44
14.98
23.65
14.63

The total fair value of RSUs vested during the years ended December 31, 2017, 2016, and 2015, was $19 million, $11 million
and $10 million, respectively.  The weighted average grant date fair value of RSUs granted during the years ended December 31, 
2017, 2016, and 2015 was $12.44, $11.54, and $27.31, respectively. 

Deferred Stock Units

DSUs represent the right of a participant to be paid one share of NRG common stock at the end of a deferral period established 
under the terms of the award. DSUs granted under the Company's LTIPs are fully vested at the date of issuance. Fair value of the 
DSUs, which is based on the closing price of NRG common stock on the date of grant, is recorded as compensation expense in 
the period of grant.

The following table summarizes the Company's outstanding DSU awards and changes during the year:

Outstanding at December 31, 2016

Granted
Converted to Common Stock

Outstanding at December 31, 2017
(a) There were no DSUs granted to GenOn employees and outstanding as of December 31, 2017.

Units(a)

453,674
120,251
(146,777)
427,148

Weighted Average Grant-
Date Fair Value per Unit
21.54
$
16.76
17.62
21.54

The aggregate intrinsic values for DSUs outstanding as of December 31, 2017, 2016, and 2015 were approximately $12 
million, $6 million, and $5 million, respectively.  The aggregate intrinsic values for DSUs converted to common stock for the 
years ended December 31, 2017, 2016, and 2015 were $4 million, $1 million, and less than a million, respectively.  The weighted 
average grant date fair value of DSUs granted during the years ended December 31, 2017, 2016, and 2015 was $16.76, $16.85
and $25.14, respectively.

Performance Stock Units

PSUs entitle the recipient to stock upon vesting. The amount of the award is subject to the Company's achievement of certain 
performance measures over the vesting period. As of December 31, 2017, non-vested PSUs consist of Market Stock Units, or 
MSUs, and Relative Performance Stock Units, or RPSUs.

Relative Performance Stock Units — RPSUs are restricted grants where the quantity of shares increases and decreases 
alongside the Company's Total Shareholder Return, or TSR, relative to the TSR of the Company’s current proxy peer group 
and the total returns of select indexes, or Peer Group. Each RPSU represents the potential to receive NRG common stock 
after the completion of the performance period, typically three years of service from the date of grant. The number of shares 
of NRG common stock to be paid (if any) as of the vesting date for each RPSU will depend on the Company’s percentile rank 
within the Peer Group. The number of shares of common stock to be paid as of the vesting date for each RPSU is linearly 
interpolated for TSR performance between the following points: (i) 0% if ranked below the 25th percentile; (ii) 25% if ranked 
at the 25th percentile; (iii) 100% if ranked at the 55th percentile (or the 65th percentile if the Company’s absolute TSR is less 
than negative 15%); and (iv) 200% if ranked at the 75th percentile or above. The value of the common stock on the date of 
grant is based on the closing price of NRG common stock on the date of grant. 

196

197

 
 
 
 
 
 
 
 
 
 
 
 
Market Stock Units — MSUs are restricted grants where the quantity of shares increases and decreases alongside the 
Company's TSR. Each MSU represents the potential to receive NRG common stock after the completion of the performance 
period, typically three years of service from the date of grant. The number of shares of common stock to be paid as of the 
vesting date for each MSU is : (i) zero shares, if the TSR has decreased by more than 25% over the performance period, (ii) 
three-quarters of one share, if the TSR has decreased by 25% over the performance period; (iii) interpolated between three-
quarters of one share and one share, if the TSR has decreased less than 25% over the performance period; (iv) one share, if 
there is no change in TSR over the performance period; (v) interpolated between one share and two shares, if TSR increases 
less than 100% during the performance period; and (vi) two shares, if the TSR increases 100% over the performance period. 
The value of the common stock on the date of grant is based on the closing price of NRG common stock on the date of grant.
The Company last granted MSUs during the year ended December 31, 2016.

The following table summarizes the Company's non-vested PSU awards and changes during the year:

Non-vested at December 31, 2016

Granted
Forfeited

Non-vested at December 31, 2017
(a) There were no PSUs granted to GenOn employees and outstanding as of December 31, 2017.

Units(a)
1,282,588
738,830
(162,597)
1,858,821

Weighted Average Grant-
Date Fair Value per Unit
21.47
$
15.91
31.85
18.27

The weighted average grant date fair value of PSUs granted during the years ended December 31, 2017, 2016 and 2015, was 

$15.91, $14.73 and $26.68, respectively. 

The fair value of PSUs is estimated on the date of grant using a Monte Carlo simulation model and expensed over the service 
period, which equals the vesting period. Significant assumptions used in the fair value model with respect to the Company's PSUs 
are summarized below:

Expected volatility
Expected term (in years)
Risk free rate

2017

RPSUs

2016

MSUs

43.96%
3
1.5%

34.33%
3
1.31%

For the years ended December 31, 2017 and 2016, expected volatility is calculated based on NRG's historical stock price 

volatility data over the period commensurate with the expected term of the PSU, which equals the vesting period.

Supplemental Information

The following table summarizes NRG's total compensation expense recognized for the years presented as well as total non-
vested  compensation  costs  not  yet  recognized  and  the  period  over  which  this  expense  is  expected  to  be  recognized  as  of 
December 31, 2017, for each of the types of awards issued under the LTIPs. Minimum tax withholdings of $5 million, $5 million, 
and $21 million for the years ended December 31, 2017, 2016, and 2015, respectively, are reflected as a reduction to additional 
paid-in capital on the Company's consolidated balance sheet and are reflected as operating activities on the Company's consolidated 
statement of cash flows.

Award

Compensation Expense

Year Ended December 31,
2016

2017

Non-vested Compensation Cost

Unrecognized
Total Cost

Weighted Average
Recognition Period
Remaining (In years)

As of December 31,

2015

2017

2017

(In millions, except weighted average data)

$

NQSOs(a)
RSUs
DSUs
MSUs
RPSUs
PRSUs(b)
Total(c)
Tax detriment recognized
(a) All NQSOs granted under the Company's LTIP were fully vested as of December 31, 2017, 2016, and 2015.
(b) Phantom Restricted Stock Units, PRSUs, are liability-classified time-based awards that typically vest ratably over a three-year period. The amount to be 
paid upon vesting is based on NRG's closing stock price for the period.  
(c) Does not include GenOn compensation expense incurred prior to the deconsolidation of GenOn on June 14, 2017, of approximately $1 million for each of 
the years ended December 31, 2017, 2016, and 2015, which is recorded in loss from discontinued operations in the Company's consolidated statement of 
operations. 

— $
22
2
16
—
—
40
(12)

— $
17
2
6
4
15
44
$
(5) $

— $
13
2
3
—
5
23
$
(4) $

—
1.37
—
0.82
1.99
1.51

—
13
—
4
6
14
37

$
$

$

Note 21 — Related Party Transactions 

The following table summarizes NRG's material related party transactions with third party affiliates that are included in the 

Company's operating revenues, operating costs and other income and expense:

Revenues from Related Parties Included in Operating Revenues

Gladstone
GenConn
Total

Year Ended December 31,

2017

2016

(In millions)

2015

$

$

3
5
8

$

$

2
5
7

$

$

4
4
8

Gladstone — NRG provides services to Gladstone, an equity method investment, under an operations and maintenance 
agreement.  Fees for services under this contract primarily include recovery of NRG's costs of operating the plant as approved in 
the annual budget, as well as a base monthly fee.

GenConn — NRG provides services to GenConn under operations and maintenance agreements with GenConn Devon and 

GenConn Middletown that began in June 2010 and June 2011, respectively. 

198

199

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Services Agreement and Transition Services Agreement with GenOn

Commercial Operations Agreement

 The Company provides GenOn with various management, personnel and other services, which include human resources, 
regulatory and public affairs, accounting, tax, legal, information systems, treasury, risk management, commercial operations, and 
asset management, as set forth in the services agreement with GenOn, or the Services Agreement.  The initial term of the Services 
Agreement was through December 31, 2013, with an automatic renewal absent a request for termination. The fee charged was 
determined based on a fixed amount as described in the Services Agreement and was calculated based on historical GenOn expenses 
prior to the NRG Merger. The annual fees under the Services Agreement were approximately $193 million and management has 
concluded that this method of charging overhead costs is reasonable. As described in Note 3, Discontinued Operations, Acquisitions 
and Dispositions, in connection with the Restructuring Support Agreement, NRG agreed to provide shared services to GenOn 
under the Services Agreement for an adjusted annualized fee of $84 million.  Beginning on June 14, 2017, and through December 
2017, NRG recorded amounts earned for shared services of approximately $5 million per month. 

In December 2017, in conjunction with the confirmation of the GenOn Entities' plan of reorganization, the Services Agreement 
was terminated and replaced by the transition services agreement. Under the transition services agreement, NRG will continue to 
provide  the  shared  services  and  other  separation  services  at  an  annualized  rate  of  $84  million,  subject  to  certain  credits  and 
adjustments, until June 30, 2018, which may be extended by GenOn through September 30, 2018.  NRG may provide additional 
separation services that are necessary for or reasonably related to the operation of GenOn's business after such date, subject to 
NRG's prior written consent, not to be unreasonably withheld. For the year ended December 31, 2017, NRG recorded other income 
- affiliate related to these services of $87 million prior to the Chapter 11 Filing and $42 million against selling, general and 
administrative expenses post-Chapter 11 Filing. For the year ended December 31, 2016, NRG recorded other income - affiliate 
related to these services of $193 million.

Also in December 2017, NRG provided GenOn with a $3.5 million credit for services provided under the transition services 
agreement and began recording amounts earned of approximately $7 million per month.  NRG has also agreed to provide GenOn 
with a $28 million credit against amounts owed to NRG under the transition services agreement.  The credit is intended to reimburse 
GenOn for its payment of financing costs. Any unused amount can be paid in cash at GenOn's request, subject to the terms and 
conditions of the transition services agreement. 

See Note 3, Discontinued Operations, Acquisitions and Dispositions, for further discussion regarding the December 2017 
agreed upon changes to the Restructuring Support Agreement and transition services agreement, based on which NRG recorded 
a reserve of $12 million against affiliate receivable balances as of December 31, 2017.

Credit Agreement with GenOn 

NRG  and  GenOn  are  party  to  a  secured  intercompany  revolving  credit  agreement.  The  intercompany  revolving  credit 
agreement provided for a $500 million revolving credit facility, all of which was available for revolving loans and letters of credit.  
At December 31, 2017 and December 31, 2016, $92 million and $272 million, respectively, of letters of credit were issued and 
outstanding under the NRG credit agreement for GenOn. Additionally, as of December 31, 2017, there were $125 million of loans 
outstanding under the intercompany secured revolving credit facility.  As of December 31, 2016, no loans were outstanding under 
this  intercompany  secured  revolving  credit  facility.  In  addition,  the  intercompany  secured  revolving  credit  facility  contains 
customary covenants and events of default. As of December 31, 2017, GenOn was in default under the secured intercompany 
revolving credit agreement due to the filing of the Chapter 11 Cases. 

As a result of the Chapter 11 Cases, no additional revolving loans or letters of credit are available to GenOn. In addition, 
NRG agreed to provide GenOn with a letter of credit facility during the pendency of the Chapter 11 Cases, which could be utilized 
for required letters of credit in lieu of the intercompany secured revolving credit facility.  The letter of credit facility provided 
availability of up to $330 million less amounts borrowed and letters of credit provided are required to be cash collateralized at 
103% of the letter of credit amount. On July 27, 2017, this letter of credit facility was terminated as GenOn has obtained a separate 
letter of credit facility with a third party financial institution. Effective with completion of the reorganization, GenOn must repay 
NRG for all revolving loans outstanding, with such amount to be netted against the settlement payment owed from NRG to GenOn.  
Accordingly,  the  affiliate  receivable  is  recorded  net  within  accrued  expenses  and  other  current  liabilities  -  affiliate  on  the 
consolidated balance sheet as of December 31, 2017. Interest continues to accrue during the pendency of the Chapter 11 Cases 
and borrowings remain secured obligations. 

NRG Power Marketing LLC has entered into physical and financial intercompany commodity and hedging transactions with 
GenOn and certain of its subsidiaries. Subject to applicable collateral thresholds, these arrangements may provide for the bilateral 
exchange  of  credit  support  based  upon  market  exposure  and  potential  market  movements.  The  terms  and  conditions  of  the 
agreements are generally consistent with industry practices and other third party arrangements.  As of December 31, 2017, derivative 
assets  and  liabilities  associated  with  these  transactions  are  recorded  within  NRG's  derivative  instruments  balances  on  the 
consolidated  balance  sheet,  with  related  revenues  and  costs  within  operating  revenues  and  cost  of  operations,  respectively. 
Additionally, as of December 31, 2017 and December 31, 2016, the Company had $32 million and $79 million, respectively, of 
cash collateral posted in support of energy risk management activities by GenOn.

Note 22 — Commitments and Contingencies 

Operating Lease Commitments

Powerton and Joliet Leases

The Company leases 100% interests in the Powerton facility and Unit 7 and Unit 8 of the Joliet facility through 2034 and 
2030, respectively, through its indirect subsidiary, Midwest Generation, LLC.  The Company accounts for these leases as operating 
leases and records lease expense on a straight-line basis over the lease term.  In connection with the acquisition of EME, the Company 
recorded the out-of-market value as a liability in out-of-market contracts of $159 million.  The liability will be amortized through 
rent expense on a straight-line basis over the term of the lease.  The Company expects to record lease expense, net of amortization 
of the out-of-market liability, of approximately $14 million per year through the term of the lease.

Future minimum lease commitments under the Powerton and Joliet operating leases for the years ending after December 31, 

2017 are as follows:

Period
2018
2019
2020
2021
2022
Thereafter
Total

Other Operating Leases

(In millions)

1
1
1
3
6
228
240

$

$

NRG  leases  certain  Company  facilities  and  equipment  under  operating  leases,  some  of  which  include  escalation  clauses, 
expiring on various dates through 2041.  NRG also has certain tolling arrangements to purchase power, which qualify as operating 
leases.  Certain operating lease agreements include provisions such as scheduled rent increases, leasehold incentives, and rent 
concessions over their lease term.  The Company recognizes the effects of these scheduled rent increases, leasehold incentives, and 
rent  concessions  on  a  straight-line  basis  over  the  lease  term  unless  another  systematic  and  rational  allocation  basis  is  more 
representative of the time pattern in which the leased property is physically employed.  Lease expense under operating leases was 
$81 million, $96 million, and $97 million for the years ended December 31, 2017, 2016, and 2015, respectively.

Future minimum lease commitments under operating leases for the years ending after December 31, 2017 are as follows:

Period

2018

2019

2020

2021

2022

Thereafter
Total (a)

(In millions)

78

80

75

65

64

479
841

$

$

200

201

(a) Amounts in the table exclude future sublease income of $49 million associated with long-term leases for office locations.

 
 
 
 
 
 
 
Coal, Gas and Transportation Commitments

Nuclear Insurance

NRG  has  entered  into  long-term  contractual  arrangements  to  procure  fuel  and  transportation  services  for  the  Company's 
generation assets and for the years ended December 31, 2017, 2016, and 2015, the Company purchased $1.2 billion, $1.2 billion, 
and $1.8 billion, respectively, under such arrangements.

As of December 31, 2017, the Company's commitments under such outstanding agreements are as follows:

Period

2018

2019

2020

2021

2022

Thereafter

Total

(In millions)

527

188

150

112

103

296

1,376

$

$

Purchased Power Commitments

NRG has purchased power contracts of various quantities and durations that are not classified as derivative assets and liabilities 
and do not qualify as operating leases.  These contracts are not included in the consolidated balance sheet as of December 31, 2017.  
Minimum purchase commitment obligations are as follows as of December 31, 2017:

Period

2018

2019

2020

2021

2022

Thereafter
Total (a)
(a)  As of December 31, 2017, the maximum remaining term under any individual purchased power contract is five years. 

First Lien Structure

(In millions)

21

14

12

11

10

—

68

$

$

NRG has granted first liens to certain counterparties on a substantial portion of the Company's assets, excluding assets acquired 
in the GenOn and EME (including Midwest Generation) acquisitions, assets held by NRG Yield, Inc. and NRG's assets that have 
project-level financing, to reduce the amount of cash collateral and letters of credit that it would otherwise be required to post from 
time to time to support its obligations under out-of-the-money hedge agreements for forward sales of power or MWh equivalents.  
The Company's lien counterparties may have a claim on NRG's assets to the extent market prices exceed the hedged price.  As of 
December 31, 2017, hedges under the first lien were in-the-money for NRG on a counterparty aggregate basis.

Lignite Contract with Texas Westmoreland Coal Co.

The Company's Limestone facility utilizes a blend of coal including lignite obtained from the Jewett mine, a surface mine 
adjacent to the Limestone facility, under a long-term contract with Texas Westmoreland Coal Co., or TWCC.  The contract is a 
cost-plus  arrangement  with  certain  performance  incentives  and  penalties.    On August  18,  2016,  NRG  gave  notice  to  TWCC 
terminating the active mining of lignite under the contract, effective on December 31, 2016. 

Under the contract, TWCC continues to be responsible for reclamation activities. NRG is responsible for reclamation costs 
and has recorded an adequate ARO liability. The Railroad Commission of Texas has imposed a bond obligation of $95.5 million 
on TWCC for the reclamation of the mine.  Pursuant to the contract with TWCC, NRG supports this obligation through surety 
bonds.  Additionally, NRG is obligated to provide additional performance assurance if required by the Railroad Commission of 
Texas.

STP maintains required insurance coverage for liability claims arising from nuclear incidents pursuant to the Price-Anderson 
Act.  Effective January 1, 2017, the current liability limit per incident is $13.44 billion, subject to change to account for the effects 
of inflation and the number of licensed reactors.  An inflation adjustment must be made at least once every five years with the next 
due no later than September 10, 2018.   Under the Price-Anderson Act, owners of nuclear power plants in the U.S. are required to 
purchase primary insurance limits of $450 million for each operating site.  In addition, the Price-Anderson Act requires an additional 
layer of protection through mandatory participation in a retrospective rating plan for power reactors resulting in an additional $13 
billion in funds available for public liability claims.  The current maximum assessment per incident, per reactor, is approximately 
$127 million, taking into account a 5% adjustment for administrative fees, payable at approximately $19 million per year, per 
reactor.  NRG would be responsible for 44% of the maximum assessment, or $8 million per year, per reactor, and a maximum of 
$112 million per incident.  In addition, the U.S. Congress retains the ability to impose additional financial requirements on the 
nuclear industry to pay liability claims that exceed $13 billion for a single incident.  The liabilities of the co-owners of STP with 
respect to the retrospective premium assessments for nuclear liability insurance are joint and several.  

STP purchases insurance for property damage and site decontamination cleanup costs from Nuclear Electric Insurance Limited, 
or NEIL, an industry mutual insurance company, of which STP is a member.  STP has purchased $2.75 billion in limits for nuclear 
events and $1.5 billion in limits for non-nuclear events, the maximum available from NEIL.  The upper $1.25 billion in limits 
(excess of the first $1.5 billion in limits) is a single limit blanket policy shared with two Diablo Canyon nuclear reactors, which 
have no affiliation with the Company.  This shared limit is not subject to automatic reinstatement in the event of a loss.  The NEIL 
policy covers both nuclear and non-nuclear property damage events, and a NEIL companion policy provides Accidental Outage 
coverage for the co-owners of STP's lost revenue following a property damage event, at a weekly indemnity limit of $2.52 million 
per unit up to a maximum of $274.4 million nuclear and $183.5 million non-nuclear, and is subject to an eight-week waiting period.  
NRG also purchases an Accidental Outage policy from NEIL, which provides protection for lost revenue due to an insurable event.  
This coverage allows for reimbursement up to $1.98 million per week per unit up to a maximum of $215.6 million nuclear and 
$144 million non-nuclear, and is subject to an eight-week waiting period.  Under the terms of the NEIL policies, member companies 
may be assessed up to ten times their annual premium if the NEIL Board of Directors determines their surplus has been depleted 
due to the payment of property losses at any of the licensed reactors in a single policy year.  NEIL requires that its members maintain 
an investment grade credit rating or insure their annual retrospective obligation by providing a financial guarantee, letter of credit, 
deposit premium, or an insurance policy.  NRG has purchased an insurance policy from NEIL to guarantee the Company's obligation; 
however this insurance will only respond to retrospective premium adjustments assessed within twenty-four months after the policy 
term, whereas NEIL's Board of Directors can make such an adjustment up to 6 years after the policy expires.  

Contingencies

The Company's material legal proceedings are described below.  The Company believes that it has valid defenses to these legal 
proceedings and intends to defend them vigorously.  NRG records reserves for estimated losses from contingencies when information 
available indicates that a loss is probable and the amount of the loss, or range of loss, can be reasonably estimated.  As applicable, 
the Company has established an adequate reserve for the matters discussed below. In addition, legal costs are expensed as incurred.  
Management has assessed each of the following matters based on current information and made a judgment concerning its potential 
outcome, considering the nature of the claim, the amount and nature of damages sought, and the probability of success.  Unless 
specified below, the Company is unable to predict the outcome of these legal proceedings or reasonably estimate the scope or 
amount of any associated costs and potential liabilities.  As additional information becomes available, management adjusts its 
assessment and estimates of such contingencies accordingly.  Because litigation is subject to inherent uncertainties and unfavorable 
rulings or developments, it is possible that the ultimate resolution of the Company's liabilities and contingencies could be at amounts 
that are different from its currently recorded reserves and that such difference could be material.

In addition to the legal proceedings noted below, NRG and its subsidiaries are party to other litigation or legal proceedings 
arising in the ordinary course of business.  In management's opinion, the disposition of these ordinary course matters will not 
materially adversely affect NRG's consolidated financial position, results of operations, or cash flows.

Midwest Generation Asbestos Liabilities — The Company, through its subsidiary, Midwest Generation, may be subject to 
potential asbestos liabilities as a result of its acquisition of EME.  The Company is currently analyzing the scope of potential liability 
as it may relate to Midwest Generation. The Company believes that it has established an adequate reserve for these cases.

Energy Plus Holdings — On August 7, 2012, Energy Plus Holdings received a subpoena from the NYAG which generally 
sought information and business records related to Energy Plus Holdings' sales, marketing and business practices.  Energy Plus 
Holdings provided documents and information to the NYAG.  On June 22, 2015, the NYAG issued another subpoena seeking 
additional information. Energy Plus Holdings provided responsive documents to this second subpoena. On August 28, 2017, the 
parties entered into an Assurance of Discontinuance resolving this matter.

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Midwest Generation New Source Review Litigation — In August 2009, the EPA and the Illinois Attorney General, or the 
Government Plaintiffs, filed a complaint, or the Governments’ Complaint, in the U.S. District Court for the Northern District of 
Illinois alleging violations of CAA PSD requirements by Midwest Generation arising from maintenance, repair or replacement 
projects at six Illinois coal-fired electric generating stations performed by Midwest Generation or ComEd, a prior owner of the 
stations, including alleged failures to obtain PSD construction permits and to comply with BACT requirements.   The Government 
Plaintiffs also alleged violations of opacity and PM standards at the Midwest Generation plants.  Finally, the Government Plaintiffs 
alleged that Midwest Generation violated certain operating permit requirements under Title V of the CAA allegedly arising from 
such claimed PSD, opacity and PM emission violations. Several environmental groups intervened as plaintiffs in this litigation and 
filed a complaint, or the Intervenors’ Complaint, which alleged opacity, PM and related Title V violations.  Midwest Generation 
filed a motion to dismiss nine of the ten PSD counts in the Governments’ Complaint, and to dismiss the tenth PSD count to the 
extent the Governments’ Complaint sought civil penalties for that count.  The trial court granted the motion in March 2010.

In June 2010, the Government Plaintiffs and Intervenors each filed an amended complaint.  The Governments’ Amended 
Complaint again alleged that Midwest Generation violated PSD (based upon the same projects as alleged in their original complaint, 
but adding allegations that the Company was liable as the “successor” to ComEd), Title V and opacity and PM standards.  It named 
EME and ComEd as additional defendants and alleged PSD violations (again, premised on the same projects) against them.  The 
Intervenors’ Amended Complaint named only Midwest Generation as a defendant and alleged Title V and opacity/PM violations, 
as well as one of the ten PSD violations alleged in the Governments’ Amended Complaint.  Midwest Generation again moved to 
dismiss all but one of the Government Plaintiffs’ PSD claims and the related Title V claims.  Midwest Generation also filed a motion 
to dismiss the PSD claim in the Intervenors’ Amended Complaint and the related Title V claims.  In March 2011, the trial court 
granted Midwest Generation’s partial motion to dismiss the Government Plaintiffs’ PSD claims. The trial court denied Midwest 
Generation’s motion to dismiss the PSD claim asserted in the Intervenors’ Amended Complaint, but noted that the plaintiffs would 
be required to convince the court that the statute of limitations should be equitably tolled. The trial court did not address other 
counts  in  the  amended  complaints  that  allege  violations  of  opacity  and  PM  emission  limitations  under  the  Illinois  State 
Implementation Plan and related Title V claims. The trial court also granted the motions to dismiss the PSD claims asserted against 
EME and ComEd. 

Following the trial court ruling, the Government Plaintiffs appealed the trial court’s dismissals of their PSD claims, including 
the dismissal of nine of the ten PSD claims against Midwest Generation and of the PSD claims against the other defendants.  Those 
PSD claim dismissals were affirmed by the U.S. Court of Appeals for the Seventh Circuit in July 2013.  In addition, in 2012, all 
but one of the environmental groups that had intervened in the case dismissed their claims without prejudice.  As a result, only one
environmental group remains a plaintiff intervenor in the case. In February 2018, the parties agreed in principal to settle the matter. 
After the settlement agreement is signed by all parties (which the Company expects to occur in March 2018) and approved by the 
court, Midwest Generation will be required to (x) pay $500,000 to each of the State of Illinois and the Federal Government and (y) 
make and maintain certain operational improvements.

Telephone Consumer Protection Act Purported Class Actions —  Three purported class action lawsuits have been filed against 
NRG Residential Solar Solutions, LLC —one in California and two in New Jersey.  The plaintiffs generally allege misrepresentation 
by the call agents and violations of the TCPA, claiming that the defendants engaged in a telemarketing campaign placing unsolicited 
calls to individuals on the “Do Not Call List.” The plaintiffs seek statutory damages of up to $1,500 per plaintiff, actual damages 
and equitable relief. On June 22, 2017, plaintiffs in the California case filed a motion for leave to file a second amended complaint 
to substitute new plaintiffs. Defendants filed an opposition to this motion on June 26, 2017. The court granted plaintiffs' motion to 
substitute new plaintiffs and on August 1, 2017, defendants filed an answer to the second amended complaint. On August 31, 2017, 
the court in the California case agreed that the litigation should be stayed pending final court approval of the New Jersey settlement. 
On July 12, 2017, the parties in the New Jersey action reached an agreement in principle to resolve the class allegations which was 
confirmed by a term sheet signed by the parties on July 28, 2017. On September 27, 2017, plaintiffs in the New Jersey case filed 
their motion for preliminary approval of the class settlement which was approved by the court on November 17, 2017. On February 
20, 2018 at the close of the objection deadline, two objections were filed to the Dobkin class settlement.

California Department of Water Resources and San Diego Gas & Electric Company v. Sunrise Power Company LLC — On 
January 29, 2016, CDWR and SDG&E filed a lawsuit against Sunrise Power Company, along with NRG and Chevron Power 
Corporation.  In June 2001, CDWR and Sunrise entered into a 10-year PPA under which Sunrise would construct and operate a 
generating facility and provide power to CDWR.  At the time the PPA was entered into, Sunrise had a transportation services 
agreement, or TSA, to purchase natural gas from Kern River through April 30, 2018.  In August 2003, CDWR entered into an 
agreement with Sunrise and Kern River in which CDWR accepted assignment of the TSA through the term of the PPA.  After the 
PPA expired, Kern River demanded that any reassignment be to a party which met certain creditworthiness standards which Sunrise 
did not.  As such, the plaintiffs brought this lawsuit against the defendants alleging breach of contract, breach of covenant of good 
faith and fair dealing and improper distributions.  Plaintiffs generally claim damages of $1.2 million per month for the remaining 
70 months of the TSA.  On April 20, 2016, the defendants filed objections in response to the plaintiffs' complaint.  The objections 
were granted on June 14, 2016; however, the plaintiffs were allowed to file amended complaints on July 1, 2016. On July 27, 2016, 
defendants filed objections to the amended complaints.  On November 18, 2016, the court sustained the objections and allowed 
plaintiffs another opportunity to file a second amended lawsuit which they did on January 13, 2017. On April 21, 2017, the court 
issued an order sustaining the objections without leave to amend. On July 14, 2017, CDWR filed a notice of appeal. On January 
10, 2018, CDWR filed its appellate brief.

Braun v. NRG Yield, Inc. — On April 19, 2016, plaintiffs filed a putative class action lawsuit against NRG Yield, Inc., the 
current and former members of its board of directors individually, and other parties in California Superior Court in Kern County, 
CA.  Plaintiffs allege various violations of the Securities Act due to the defendants’ alleged failure to disclose material facts related 
to low wind production prior to the NRG Yield, Inc.'s June 22, 2015 Class C common stock offering.  Plaintiffs seek compensatory 
damages, rescission, attorney’s fees and costs. The Defendants filed objections and a motion challenging jurisdiction on October 
18, 2016. On December 1, 2017, the parties agreed to a stipulation which provides the plaintiffs' opposition is due on March 6, 
2018 and defendants' reply is due on May 4, 2018.

Ahmed v. NRG Energy, Inc. and the NRG Yield Board of Directors — On September 15, 2016, plaintiffs filed a putative class 
action lawsuit against NRG Energy, Inc., the directors of NRG Yield, Inc., and other parties in the Delaware Chancery Court.  The 
complaint alleges that the defendants breached their respective fiduciary duties with regard to the recapitalization of NRG Yield, 
Inc. common stock in 2015.  The plaintiffs generally seek economic damages, attorney’s fees and injunctive relief.  The defendants 
filed a motion to dismiss the lawsuit on December 21, 2016. Plaintiffs filed their objection to the motion to dismiss on February 
15, 2017. The defendants' reply was filed on March 24, 2017. The court heard oral argument on defendants' motion to dismiss on 
June 20, 2017. On September 7, 2017, the court requested additional briefing which the parties provided on September 21, 2017. 
On December 11, 2017, the court dismissed the lawsuit with prejudice, thereby ending the case.

Griffoul v. NRG Residential Solar Solutions — On February 28, 2017, plaintiffs, consisting of New Jersey residential solar 
customers, filed a purported class action lawsuit in New Jersey state court.  Plaintiffs allege violations of the New Jersey Consumer 
Fraud Action and Truth-in-Consumer Contracts, Warranty and Notice Act with regard to certain provisions of their residential solar 
contracts.  The plaintiffs seek damages and injunctive relief as to the proper allocation of the solar renewable energy credits. On 
June 6, 2017, the defendants filed a motion to compel arbitration or dismiss the lawsuit.  Plaintiffs filed their opposition on June 
29, 2017. On July 14, 2017, the court denied NRG's motion to compel arbitration or dismiss the case. On July 25, 2017, NRG filed 
a motion for reconsideration of the appeal, which the court denied. On August 22, 2017, NRG filed a notice of appeal.  The appeal 
is fully briefed and scheduled for argument on April 24, 2018.

Rice v. NRG — On April 14, 2017, plaintiffs filed a purported class action lawsuit in the U.S. District Court for the Western 
District of Pennsylvania against NRG, First Energy Corporation and Matt Canastrale Contracting, Inc.  Plaintiffs generally claim 
personal injury, trespass, nuisance and property damage related to the disposal of coal ash from GenOn's Elrama Power Plant and 
First Energy’s Mitchell and Hatfield Power Plants. Plaintiffs generally seek monetary damages, medical monitoring and remediation 
of their property. Plaintiffs filed an amended complaint on August 14, 2017. On October 20, 2017, NRG filed its answer and 
affirmative defenses.

Washington-St.  Tammany  and  Claiborne  Electric  Cooperative  v.  LaGen  —  On  June  28,  2017,  plaintiffs Washington-St. 
Tammany Electric Cooperative, Inc. and Claiborne Electric Cooperative, Inc. filed a lawsuit against Louisiana Generating, L.L.C., 
or LaGen, in the United States District Court for the Middle District of Louisiana.  The plaintiffs claim breach of contract against 
LaGen for allegedly improperly charging the plaintiffs for costs related to the installation and maintenance of certain pollution 
control technology.  Plaintiffs seek damages for the alleged improper charges and a declaration as to which charges are proper under 
the contract. On September 14, 2017, the court issued a scheduling order setting this case for trial on October 21, 2019.  LaGen 
filed a motion for a more definite statement on September 18, 2017 which the court denied on November 2, 2017. LaGen filed its 
answer and affirmative defenses on November 17, 2017.

204

205

 
 
 
 
 
 
GenOn Chapter 11 Cases — On the Petition Date, the GenOn Entities filed voluntary petitions for relief under Chapter 11 
of the Bankruptcy Code in the Bankruptcy Court. Under the Restructuring Support Agreement to which the GenOn Entities, NRG 
and certain of GenOn's and GenOn Americas Generation's senior unsecured noteholders are parties, each of them supported the 
Bankruptcy Court's approval of the plan of reorganization. GenOn has a customary "fiduciary out" under the Restructuring Support 
Agreement. If the plan of reorganization is not consummated, NRG may not be entitled to the benefits of the Settlement Agreement 
provided  under  the  Restructuring  Support Agreement  and  it  will  remain  subject  to  any  claims  of  GenOn  and  the  noteholders, 
including claims relating to or arising out of any shared services and any other relationships or transactions between the companies. 
See Note 3, Discontinued Operations, Dispositions and Acquisitions, for additional information related to the Chapter 11 Cases.

GenOn Noteholders' Lawsuit — On December 13, 2016, certain indenture trustees for an ad hoc group of holders, or the 
Noteholders, of the GenOn Energy, Inc. 7.875% Senior Notes due 2017, 9.500% Notes due 2018, and 9.875% Notes due 2020, and 
the GenOn Americas Generation, LLC8.50% Senior Notes due 2021 and 9.125% Senior Notes due 2031, along with certain of the 
Noteholders, filed a complaint in the Superior Court of the State of Delaware against NRG and GenOn alleging certain claims 
related to the Services Agreement between NRG and GenOn. Plaintiffs generally seek return of all monies paid under the Services 
Agreement and any other damages that the court deems appropriate. On February 3, 2017, the court entered an order approving a 
Standstill Agreement whereby the parties agreed to suspend all deadlines in the case until March 1, 2017.  The Standstill Agreement 
terminated on March 1, 2017.  On April 30, 2017, the Noteholders filed an amended complaint that asserts (i) additional fraudulent 
transfer claims in relation to GenOn’s sale of the Marsh Landing project to NRG Yield LLC, (ii) alleged breaches of fiduciary duty 
by certain current and former officers and directors of GenOn in relation to the Services Agreement and the alleged usurpation of 
corporate opportunities concerning the Mandalay and Canal projects and (iii) claims against NRG for allegedly aiding and abetting 
such claimed breaches of fiduciary duties. In addition to NRG and GenOn, the amended complaint names NRG Yield LLC and 
certain current and former officers and directors of GenOn as defendants. The plaintiffs, among other things, generally seek return 
of all monies paid under the services agreement and any other damages that the court deems appropriate. On December 14, 2017, 
a settlement agreement was executed between GenOn and NRG which should ultimately resolve this lawsuit.

Morgantown v. GenOn Mid-Atlantic — On June 8, 2017, Morgantown and Dickerson Owner Lessors filed a lawsuit against 
GenOn Mid-Atlantic, LLC, NRG North America LLC, GenOn Americas Generation, LLC, NRG Americas, Inc., GenOn Energy 
Holdings, Inc., GenOn Energy, Inc., and NRG Energy, Inc. in New York State Supreme Court.  The plaintiffs allege that they were 
overcharged by defendants for certain services outlined in a Services Agreement and that defendants caused a Qualified Credit 
Support portion of a Participation Agreement, or QCS Agreement, to be violated by causing the transfer of certain money outside 
the allowable confines set forth in the QCS Agreement. In addition, plaintiffs claim that the transfers were unfairly executed and 
done so in an effort to defraud plaintiffs and hinder their ability to continue to do business.  As such, plaintiffs seek, among other 
things, the return of certain transferred funds and service charges paid and to bar defendants from executing additional transfers 
on plaintiffs’ behalf. On November 7, 2017, the Bankruptcy Court issued an order estimating the claims to be valued at $0.  On 
December 14, 2017, a settlement agreement was executed between GenOn and NRG which should ultimately resolve this lawsuit.

BTEC v. NRG Texas Power — On July 18, 2017, BTEC New Albany LLC, or BTEC, filed a lawsuit against NRG Texas 
Power LLC, or NRG Texas Power, in the Harris County District Court in Texas.  On January 15, 2013, the parties entered into a 
Membership  Interest and Purchase Agreement, or MIPA, whereby BTEC agreed to dismantle, transport and rebuild an electric 
power generation facility at the former P.H. Robinson Electric Generating Station in Bacliff, Texas.  The MIPA required BTEC to 
meet  a  Guaranteed  Commercial  Completion  Date  of  May  31,  2016.   But  even  a  year  later,  BTEC  had  not  satisfied  all  of  the 
contractually-required acceptance criteria.  As a result and given that the MIPA expiration date passed on May 31, 2017, NRG 
elected to terminate the contract in June 2017. BTEC claims that NRG Texas Power breached the MIPA by improperly terminating 
it, and seeks a declaratory judgment as to the rights and obligations of the parties.  In addition, BTEC seeks damages, interest and 
attorney’s fees. On August 14, 2017, NRG Texas Power served its answer to the lawsuit.  On September 7, 2017, NRG Texas Power 
filed a counterclaim seeking damages in excess of $48 million.

GenOn Related Contingencies

Actions Pursued by MC Asset Recovery — With Mirant Corporation's emergence from bankruptcy protection in 2006, certain 
actions filed by GenOn Energy Holdings and some of its subsidiaries against third parties were transferred to MC Asset Recovery, 
a wholly owned subsidiary of GenOn Energy Holdings.  MC Asset Recovery is governed by a manager who is independent of NRG 
and GenOn.  MC Asset Recovery is a disregarded entity for income tax purposes.  Under the remaining action transferred to MC 
Asset  Recovery,  MC  Asset  Recovery  seeks  to  recover  damages  from  Commerzbank  AG  and  various  other  banks,  or  the 
Commerzbank Defendants, for alleged fraudulent transfers that occurred prior to Mirant's bankruptcy proceedings.  In December 
2010, the U.S. District Court for the Northern District of Texas dismissed MC Asset Recovery's complaint against the Commerzbank 
Defendants.  In January 2011, MC Asset Recovery appealed the District Court's dismissal of its complaint against the Commerzbank 
Defendants to the U.S. Court of Appeals for the Fifth Circuit, or the Fifth Circuit.  In March 2012, the Fifth Circuit reversed the 
District Court's dismissal and reinstated MC Asset Recovery's amended complaint against the Commerzbank Defendants.  On 
December 10, 2015, the District Court granted summary judgment in favor of the Commerzbank Defendants. On December 29, 
2015, MC Asset Recovery filed a notice to appeal this judgment with the Fifth Circuit.  On June 1, 2017, the Fifth Circuit affirmed 
the District Court's judgment. On June 12, 2017, MC Asset Recovery petitioned the Fifth Circuit for rehearing. The petition for 
rehearing was denied and a court order and judgment affirming the District Court's judgments was entered on July 17, 2017. The 
bankruptcy court is scheduled to hear a Motion for a Final Decree in the Mirant bankruptcy on April 11, 2018. 

Natural Gas Litigation — GenOn is party to several lawsuits, certain of which are class action lawsuits, in state and federal 
courts in Kansas, Missouri, Nevada and Wisconsin.  These lawsuits were filed in the aftermath of the California energy crisis in 
2000 and 2001 and the resulting FERC investigations and relate to alleged conduct to increase natural gas prices in violation of 
state antitrust law and similar laws.  The lawsuits seek treble or punitive damages, restitution and/or expenses.  The lawsuits also 
name as parties a number of energy companies unaffiliated with NRG.  In July 2011, the U.S. District Court for the District of 
Nevada, which was handling four of the five cases, granted the defendants' motion for summary judgment and dismissed all claims 
against GenOn in those cases.  The plaintiffs appealed to the U.S. Court of Appeals for the Ninth Circuit, or the Ninth Circuit, which 
reversed the decision of the District Court.  GenOn along with the other defendants in the lawsuit filed a petition for a writ of 
certiorari to the U.S. Supreme Court challenging the Ninth Circuit's decision and the U.S. Supreme Court granted the petition. On 
April 21, 2015, the U.S. Supreme Court affirmed the Ninth Circuit’s holding that plaintiffs’ state antitrust law claims are not field-
preempted by the federal Natural Gas Act and the Supremacy Clause of the U.S. Constitution.  The U.S. Supreme Court left open 
whether the claims were preempted on the basis of conflict preemption. The U.S. Supreme Court directed that the case be remanded 
to the U.S. District Court for the District of Nevada for further proceedings.  On March 7, 2016, class plaintiffs filed their motions 
for class certification.  Defendants filed their briefs in opposition to class plaintiffs' motions for class certification on June 24, 2016.  
On March 30, 2017, the court denied the plaintiffs' motions for class certification. On April 13, 2017, the plaintiffs petitioned the 
Ninth Circuit for interlocutory review of the court’s order denying class certification. On June 13, 2017, the Ninth Circuit granted 
plaintiffs' petition for interlocutory review. On November 22, 2017, plaintiffs filed their appellate brief. On January 22, 2018, the 
defendants filed their opposition brief.

In May 2016 in one of the Kansas cases, the U.S. District Court for the District of Nevada granted the defendants' motion for 
summary judgment.  Subsequently in December 2016, the plaintiffs filed a notice of appeal with the Ninth Circuit. The appeal has 
been fully briefed by the parties and was argued on February 16, 2018. GenOn has agreed to indemnify CenterPoint against certain 
losses relating to these lawsuits.

In September 2012, the State of Nevada Supreme Court, which was handling the remaining case, affirmed dismissal by the 
Eighth Judicial District Court for Clark County, Nevada of all plaintiffs' claims against GenOn.  In February 2013, the plaintiffs in 
the Nevada case filed a petition for a writ of certiorari to the U.S. Supreme Court.  In June 2013, the U.S. Supreme Court denied 
the petition for a writ of certiorari, thereby ending one of the five lawsuits. 

Potomac River Environmental Investigation — In March 2013, NRG Potomac River LLC, a subsidiary of GenOn, received 
notice that the District of Columbia Department of Environment (now renamed the Department of Energy and Environment, or 
DOEE) was investigating potential discharges to the Potomac River originating from the Potomac River Generating facility site, 
a site where the generation facility is no longer in operation. In connection with that investigation, DOEE served a civil subpoena 
on NRG Potomac River LLC requesting information related to the site and potential discharges occurring from the site.  NRG 
Potomac River LLC provided various responsive materials.  In January 2016, DOEE advised NRG Potomac River LLC that DOEE 
believed various environmental violations had occurred as a result of discharges DOEE believes occurred to the Potomac River 
from  the  Potomac  River  Generating  facility  site  and  as  a  result  of  associated  failures  to  accurately  or  sufficiently  report  such 
discharges.  DOEE has indicated it believes that penalties are appropriate in light of the violations.  NRG Potomac River LLC is 
currently reviewing the information provided by DOEE. 

206

207

 
 
 
 
 
 
 
 
 
 
Natixis  v.  GenOn  Mid-Atlantic  —  On  February  16,  2018,  Natixis  Funding  Corp.  and  Natixis,  New York  Branch  filed  a 
complaint in the Supreme Court of the State of New York against GenOn Mid-Atlantic, the owner lessors under GenOn Mid-
Atlantic’s operating leases of the Dickerson and Morgantown coal generation units, and the lease indenture trustee under those 
leases.  The plaintiffs’ allegations against GenOn Mid-Atlantic relate to a payment agreement between GenOn Mid-Atlantic and 
Natixis Funding Corp. to procure credit support for the payment of certain lease payments owed pursuant to the GenOn Mid-
Atlantic operating leases for Morgantown and Dickerson.  Plaintiffs seek approximately $34 million in damages arising from GenOn 
Mid-Atlantic’s purported breach of certain warranties in the payment agreement.

Note 23 — Regulatory Matters 

East/West

Montgomery  County  Station  Power  Tax  —  On  December  20,  2013,  NRG  received  a  letter  from  Montgomery  County, 
Maryland requesting payment of an energy tax for the consumption of station power at the Dickerson Facility over the previous 
three years.  Montgomery County seeks payment in the amount of $22 million, which includes tax, interest and penalties.  NRG 
disputed the applicability of the tax.  On December 11, 2015, the Maryland Tax Court reversed Montgomery County's assessment.  
Montgomery County filed an appeal, and on February 2, 2017, the Montgomery County Circuit Court affirmed the decision of 
the tax court. On February 17, 2017, Montgomery County filed an appeal to the Court of Special Appeals of Maryland. On February 
1, 2018, the court heard oral arguments.

NRG operates in a highly regulated industry and is subject to regulation by various federal and state agencies.  As such, 
NRG is affected by regulatory developments at both the federal and state levels and in the regions in which NRG operates.  In 
addition, NRG is subject to the market rules, procedures, and protocols of the various ISO and RTO markets in which NRG 
participates.  These power markets are subject to ongoing legislative and regulatory changes that may impact NRG's wholesale 
and retail businesses.

California Station Power — As the result of unfavorable final and non-appealable litigation, the Company has accrued a 
liability associated with consumption of station power at three of the Company’s power plants in California, after August 30, 2010.  
In December 2017, subsidiaries of the Company entered into settlements with SCE for the liabilities associated with the Company's 
El Segundo and Long Beach facilities.  The Company has established an appropriate reserve pending potential regulatory action 
by SDG&E regarding Encina.

In addition to the regulatory proceedings noted below, NRG and its subsidiaries are parties to other regulatory proceedings 
arising in the ordinary course of business or have other regulatory exposure.  In management's opinion, the disposition of these 
ordinary course matters will not materially adversely affect NRG's consolidated financial position, results of operations, or cash 
flows.

National

Zero-Emission Credits for Nuclear Plants in Illinois — In 2016, Illinois enacted a Zero Emission Credit, or ZEC, program 
for selected nuclear units in Illinois.  In total, the program directs over $2.5 billion over ten years to nuclear plants in Illinois that 
would otherwise retire.  Pursuant to the legislation, the Illinois Power Agency, or IPA, conducts a competitive solicitation to procure 
ZECs, although both the Governor of Illinois and Exelon have already announced that the ZECs will be awarded to two Exelon-
owned nuclear power plants in Illinois.  These ZECs are out-of-market subsidies that threaten to artificially suppress market prices 
and interfere with the wholesale power market.  On February 14, 2017, NRG, along with other companies, filed a complaint in 
the U.S. District Court for the Northern District of Illinois alleging that the state program is preempted by federal law and in 
violation of the dormant commerce clause.  Another plaintiff group filed a similar complaint on the same day.  Subsequently, on 
March 31, 2017, NRG, along with other companies, filed a motion for preliminary injunction. On April 10, 2017, Exelon, as an 
intervenor defendant, and State defendants filed motions to dismiss. On July 14, 2017, Defendants' motions to dismiss were granted. 
On July 17, 2017, NRG, along with other companies, filed a notice of appeal to the U.S. Court of Appeals for the Seventh Circuit. 
Briefing is complete. Oral argument was held on January 3, 2018, with supplemental briefs filed on January 26, 2018. On February 
21, 2018, the Seventh Circuit invited the U.S. to file an amicus brief in the proceeding.

Zero-Emission Credits for Nuclear Plants in New York — On August 1, 2016, the NYSPSC issued its Clean Energy Standard, 
or CES, which provided for ZECs which would provide more than $7.6 billion over 12 years in out-of-market subsidy payments 
to certain selected nuclear generating units in the state.  These ZECs are out-of-market subsidies that threaten to artificially suppress 
market prices and interfere with the wholesale power market.  On October 19, 2016, NRG, along with other companies, filed a 
complaint in the U.S. District Court for the Southern District of New York, challenging the validity of the NYSPSC action and 
the ZEC program.  On March 29, 2017, the U.S. District Court heard oral arguments on a motion to dismiss filed by defendants. 
On July 25, 2017, the defendants' motions to dismiss were granted. On August 24, 2017, NRG, along with other plaintiff companies, 
filed a notice of appeal to the U.S. Court of Appeals for the Second Circuit. Briefing is complete. Oral argument has been noticed 
for March 12, 2018. 

Department of Energy's Proposed Grid Resiliency Pricing Rule — On September 29, 2017, the Department of Energy issued 
a proposed rulemaking titled the "Grid Resiliency Pricing Rule." The rulemaking directs FERC to take action to reform the ISO/
RTO markets to value certain reliability and resiliency attributes of electric generation resources. On October 2, 2017, FERC 
issued a notice inviting comments. On October 4, 2017, FERC staff issued a series of questions requesting commenters to address. 
On October 23, 2017, NRG filed comments encouraging FERC to act expeditiously to modernize energy and capacity markets in 
a manner compatible with robust competitive markets. On January 8, 2018, FERC terminated the proposed rulemaking and opened 
a new rulemaking asking each ISO/RTO to address specific questions focused on grid resilience.

Puente  Power  Project  —  On  October  5,  2017,  the  California  Energy  Commission,  or  CEC,  the  agency  responsible  for 
permitting the Puente Power Project, issued a statement on behalf of the committee of two Commissioners overseeing the permitting 
process stating their intention to issue a proposed decision that would deny a permit for the Puente Power Project. On October 16, 
2017, NRG filed a motion to suspend the permitting proceeding for at least six months, which was granted on November 3, 2017.  
During the six month suspension period, which could conceivably be extended, NRG will evaluate the progress of a procurement 
process initiated by SCE to replace the Puente Power Project.

Note 24 — Environmental Matters 

NRG is subject to a wide range of environmental laws in the development, construction, ownership and operation of projects. 
These laws generally require that governmental permits and approvals be obtained before construction and during operation of 
power plants. NRG is also subject to laws regarding the protection of wildlife, including migratory birds, eagles and threatened 
and endangered species. The electric generation industry has been facing requirements regarding GHGs, combustion byproducts, 
water discharge and use, and threatened and endangered species that have been put in place in recent years. However, under the 
current U.S. presidential administration, some of these rules are being reconsidered and reviewed. In general, future laws are 
expected to require the addition of emissions controls or other environmental controls or to impose certain restrictions on the 
operations of the Company's facilities, which could have a material effect on the Company's consolidated financial position, results 
of operations, or cash flows. Federal and state environmental laws generally have become more stringent over time, although this 
trend could slow or pause in the near term with respect to federal laws under the current U.S. presidential administration.

The EPA finalized CSAPR in 2011, which was intended to replace CAIR in January 2012, to address certain states' obligations 
to reduce emissions so that downwind states can achieve federal air quality standards. In December 2011, the D.C. Circuit stayed 
the implementation of CSAPR and then vacated CSAPR in August 2012 but kept CAIR in place until the EPA could replace it. 
In April 2014, the U.S. Supreme Court reversed and remanded the D.C. Circuit's decision. In October 2014, the D.C. Circuit lifted 
the stay of CSAPR. In response, the EPA in November 2014 amended the CSAPR compliance dates. Accordingly, CSAPR replaced 
CAIR on January 1, 2015. On July 28, 2015, the D.C. Circuit held that the EPA had exceeded its authority by requiring certain 
reductions that were not necessary for downwind states to achieve federal standards. Although the D.C. Circuit kept the rule in 
place, the court ordered the EPA to revise the Phase 2 (or 2017) (i) SO2 budgets for four states including Texas and (ii) ozone-
season NOx budgets for 11 states including Maryland, New Jersey, New York, Ohio, Pennsylvania and Texas. On October 26, 
2016, the EPA finalized the CSAPR Update Rule, which reduces future NOx allocations and discounts the current banked allowances 
to account for the more stringent 2008 Ozone NAAQS and to address the D.C. Circuit's July 2015 decision. This rule has been 
challenged in the D.C. Circuit. The Company believes its investment in pollution controls and cleaner technologies leave the fleet 
well-positioned for compliance. 

208

209

 
 
 
 
 
 
 
In February 2012, the EPA promulgated standards (the MATS rule) to control emissions of HAPs from coal and oil-fired 
electric generating units. The rule established limits for mercury, non-mercury metals, certain organics and acid gases, which had 
to be met beginning in April 2015 (with some units getting a 1-year extension). In June 2015, the U.S. Supreme Court issued a 
decision in the case of Michigan v. EPA, and held that the EPA unreasonably refused to consider costs when it determined that it 
was "appropriate and necessary" to regulate HAPs emitted by electric generating units. The U.S. Supreme Court did not vacate 
the MATS rule but rather remanded it to the D.C. Circuit for further proceedings. In December 2015, the D.C. Circuit remanded 
the MATS rule to the EPA without vacatur. On April 25, 2016, the EPA released a supplemental finding that the benefits of this 
regulation outweigh the costs to address the U.S. Supreme Court's ruling that the EPA had not properly considered costs. This 
finding has been challenged in the D.C. Circuit. On April 18, 2017, the EPA asked the D.C. Circuit to postpone oral argument that 
had been scheduled for May 18, 2017 because the EPA is closely reviewing the supplemental finding to determine whether it 
should reconsider all or part of the rule. On April 27, 2017, the D.C. Circuit granted EPA's request to postpone the oral argument 
and hold the case in abeyance. While NRG cannot predict the final outcome of this rulemaking, NRG believes that because it has 
already invested in pollution controls and cleaner technologies, the fleet is well-positioned to comply with the MATS rule.

Water

In August 2014, the EPA finalized the regulation regarding the use of water for once through cooling at existing facilities 
to address impingement and entrainment concerns. NRG anticipates that more stringent requirements will be incorporated into 
some of its water discharge permits over the next several years as NPDES permits are renewed.

Effluent Limitations Guidelines — In November 2015, the EPA revised the Effluent Limitations Guidelines for Steam Electric 
Generating Facilities, which would have imposed more stringent requirements (as individual permits were renewed) for wastewater 
streams from flue gas desulfurization, or FGD, fly ash, bottom ash, and flue gas mercury control.  In April 2017, the EPA granted 
two petitions to reconsider the rule and also administratively stayed some of the deadlines. On September 18, 2017, the EPA 
promulgated a final rule that (i) postpones the compliance dates to preserve the status quo for FGD wastewater and bottom ash 
transport water by two years to November 2020 until the EPA completes its next rulemaking and (ii) withdrew the April 2017 
administrative stay. The legal challenges have been suspended while the EPA reconsiders and likely modifies the rule. Accordingly, 
the Company has largely eliminated its estimate of the environmental capital expenditures that would have been required to comply 
with permits incorporating the revised guidelines. The Company will revisit these estimates after the rule is revised.  

Byproducts, Wastes, Hazardous Materials and Contamination

In April 2015, the EPA finalized the rule regulating byproducts of coal combustion (e.g., ash and gypsum) as solid wastes 
under the RCRA. On September 13, 2017, the EPA granted the petition for reconsideration that the Utility Solid Waste Activities 
Group filed in May 2017. The Company has evaluated the impact of the new rule on the Company's consolidated financial position, 
results of operations, or cash flows and has accrued its environmental and asset retirement obligations under the rule based on 
current estimates as of December 31, 2017.

East/West Region

New Source Review — The EPA and various states have been investigating compliance of electric generating facilities with 
the pre-construction permitting requirements of the CAA known as “new source review,” or NSR.  In 2007, Midwest Generation 
received an NOV from the EPA alleging that past work at Crawford, Fisk, Joliet, Powerton, Waukegan and Will County generating 
stations violated NSR and other regulations. These alleged violations are the subject of litigation described in Item 15 — Note 
22, Commitments and Contingencies.  Additionally, in April 2013, the Connecticut Department of Energy and Environmental 
Protection issued four NOVs alleging that past work at oil-fired combustion turbines at the Torrington Terminal, Franklin, Branford 
and Middletown generating stations violated regulations regarding NSR. 

Burton Island Old Ash Landfill — In January 2006, NRG's Indian River Power LLC was notified that it may be a potentially 
responsible party with respect to Burton Island Old Ash Landfill, a historic captive landfill located at the Indian River facility.  On 
October 1, 2007, NRG signed an agreement with DNREC to investigate the site through the Voluntary Clean-up Program, or the 
VCP.  On February 4, 2008, DNREC issued findings that no further action was required in relation to surface water and that a 
previously planned shoreline stabilization project would satisfactorily address shoreline erosion.  The landfill itself required a 
Remedial Investigation and Feasibility Study to determine the type and scope of any additional required work.  DNREC approved 
the Feasibility Study in December 2012.  In January 2013, DNREC proposed a remediation plan based on the Feasibility Study.  
The remediation plan was approved in October 2013.  In December 2015, DNREC approved the Company's remediation design, 
the Company's Closure Report and the Company's Long Term Stewardship Plan. In the second quarter of 2017, the Company 
completed the remediation requirements in the remediation plan. The cost of completing the work required by the remediation 
plan was within amounts budgeted in early 2016 and remediation was completed in 2017.  The estimated cost to comply with the 
Long-Term Stewardship Plan was added to the liability in December 2016.

In  addition  to  the  VCP,  on  May  29,  2008,  DNREC  requested  that  NRG's  Indian  River  Power  LLC  participate  in  the 
development and performance of a Natural Resource Damage Assessment at the Burton Island Old Ash Landfill.  NRG is currently 
working with DNREC and other trustees to close out the assessment process. 

For further discussion of these matters, refer to Note 22, Commitments and Contingencies.

Note 25 — Cash Flow Information 

Detail of supplemental disclosures of cash flow and non-cash investing and financing information was:

Interest paid, net of amount capitalized
Income taxes paid (a)
Non-cash investing and financing activities:

Additions/(decrease) to fixed assets for accrued capital expenditures

Year Ended December 31,

2017

2016

2015

(In millions)

$

868

$

890

$

9

70

14

35

924

12

(44)

(a) In 2017, income taxes paid of $11 million are offset by $2 million in income tax refunds. In 2015, income taxes paid of $13 million are offset by $1 million 

in income tax refunds.

Note 26 — Guarantees 

NRG and its subsidiaries enter into various contracts that include indemnification and guarantee provisions as a routine part 
of the Company's business activities. Examples of these contracts include asset purchases and sale agreements, commodity sale 
and purchase agreements, retail contracts, joint venture agreements, EPC agreements, operation and maintenance agreements, 
service agreements, settlement agreements, and other types of contractual agreements with vendors and other third parties, as well 
as affiliates.  These contracts generally indemnify the counterparty for tax, environmental liability, litigation and other matters, as 
well as breaches of representations, warranties and covenants set forth in these agreements. The Company is obligated with respect 
to customer deposits associated with the Company's retail businesses.  In some cases, NRG's maximum potential liability cannot 
be estimated, since the underlying agreements contain no limits on potential liability.  

The following table summarizes the maximum potential exposures that can be estimated for NRG's guarantees, indemnities, 

and other contingent liabilities by maturity:

Guarantees

Letters of credit and surety bonds(a)
Asset sales guarantee obligations
Other guarantees
Total guarantees

By Remaining Maturity at December 31,

2017

Under
1 Year

1-3 Years

3-5 Years

Over
5 Years

Total

2016 Total

$

$

1,467
—
—
1,467

$

$

66
—
32
98

$

$

(In millions)

7
257
—
264

$

$

93
55
613
761

$

$

1,633
312
645
2,590

$

$

1,837
677
253
2,767

(a)  Excludes$92  million  and  $272  million  of  letters  of  credit  issued  under  the  intercompany  revolving  credit  agreement  between  NRG  and  GenOn  as  of 

December 31, 2017 and 2016, respectively.

Letters of credit and surety bonds — As of December 31, 2017, NRG and its consolidated subsidiaries were contingently 
obligated for a total of $1.6 billion under letters of credit and surety bonds.  Most of these letters of credit and surety bonds are 
issued in support of the Company's obligations to perform under commodity agreements and obligations associated with future 
closure and maintenance of ash sites, as well as for financing or other arrangements.  A majority of these letters of credit and surety 
bonds expire within one year of issuance, and it is typical for the Company to renew them on similar terms.

The material indemnities, within the scope of ASC 460, are as follows:

Asset sales — The purchase and sale agreements which govern NRG's asset or share investments and divestitures customarily 
contain guarantees and indemnifications of the transaction to third parties.  The contracts indemnify the parties for liabilities 
incurred as a result of a breach of a representation or warranty by the indemnifying party, or as a result of a change in tax laws.  
These obligations generally have a discrete term and are intended to protect the parties against risks that are difficult to predict or 
estimate at the time of the transaction.  In several cases, the contract limits the liability of the indemnifier. NRG has no reason to 
believe that the Company currently has any material liability relating to such routine indemnification obligations.

210

211

 
 
 
 
 
 
 
 
 
 
 
 
 
Other guarantees — NRG has issued other guarantees of obligations including payments under certain agreements with 
respect to certain of its unconsolidated subsidiaries, payment or performance by fuel providers and payment or reimbursement of 
credit support and deposits. The Company does not believe that it will be required to perform under these guarantees.

Other  indemnities — Other  indemnifications  NRG  has  provided  cover  operational,  tax,  litigation  and  breaches  of 
representations, warranties and covenants.  NRG has also indemnified, on a routine basis in the ordinary course of business, 
consultants  or  other  vendors  who  have  provided  services  to  the  Company.    NRG's  maximum  potential  exposure  under  these 
indemnifications can range from a specified dollar amount to an indeterminate amount, depending on the nature of the transaction.  
Total maximum potential exposure under these indemnifications is not estimable due to uncertainty as to whether claims will be 
made or how they will be resolved.  NRG does not have any reason to believe that the Company will be required to make any 
material payments under these indemnity provisions.

Because many of the guarantees and indemnities NRG issues to third parties and affiliates do not limit the amount or duration 
of its obligations to perform under them, there exists a risk that the Company may have obligations in excess of the amounts 
described above.  For those guarantees and indemnities that do not limit the Company's liability exposure, it may not be able to 
estimate what the Company's liability would be, until a claim is made for payment or performance, due to the contingent nature 
of these contracts.

Note 27 — Jointly Owned Plants  

Certain NRG subsidiaries own undivided interests in jointly-owned plants, as described below.  These plants are maintained 
and operated pursuant to their joint ownership participation and operating agreements.  NRG is responsible for its subsidiaries' 
share of operating costs and direct expenses and includes its proportionate share of the facilities and related revenues and direct 
expenses  in  these  jointly-owned  plants  in  the  corresponding  balance  sheet  and  income  statement  captions  of  the  Company's 
consolidated financial statements.

The following table summarizes NRG's proportionate ownership interest in the Company's jointly-owned facilities:

As of December 31, 2017

Ownership
Interest

Property, Plant &
Equipment

Accumulated
Depreciation

Construction in
Progress

(In millions unless otherwise stated)

South Texas Project Units 1 and 2, Bay City, TX

44.00% $

Big Cajun II Unit 3, New Roads, LA

Cedar Bayou Unit 4, Baytown, TX

Keystone, Shelocta, PA

Conemaugh, New Florence, PA

58.00%

50.00%

3.70%

3.72%

$

395

202

215

12

14

(207) $
(132)
(75)
—

—

7

—

7

1

1

Note 28 — Unaudited Quarterly Financial Data 

Refer to Note 3, Discontinued Operations, Acquisitions and Dispositions, and Note 10, Asset Impairments, for a description 
of the effect of unusual or infrequently occurring events during the quarterly periods.  Summarized unaudited quarterly financial 
data is as follows:

Quarter Ended

2017

December 31

September 30

June 30

March 31

Operating revenues
Operating (loss)/ income
Net (loss)/income from continuing operations
Income/(loss) from discontinued operations

Net (loss)/income
Less: Net loss attributable to noncontrolling interests and
redeemable noncontrolling interests
Net (loss)/income attributable to NRG Energy, Inc. 
(Loss)/income available to Common Stockholders
Weighted average number of common shares

outstanding — basic

Income/(loss) from discontinued operations per weighted
average common share — basic
Net (loss)/income per weighted average common

share — basic

Weighted average number of common shares

outstanding — diluted

Income/(loss) from discontinued operations per weighted
average common share — diluted
Net (loss)/income per weighted average common

share — diluted

Operating revenues
Operating (loss)/income
Net (loss)/income from continuing operations
(Loss)/income from discontinued operations

Net (loss)/income

Less: Net loss attributable to noncontrolling interests and
redeemable noncontrolling interests
Net (loss)/income attributable to NRG Energy, Inc. 
(Loss)/income available to Common Stockholders
Weighted average number of common shares

outstanding — basic

(Loss)/income from discontinued operations per weighted
average common share — basic
Net (loss)/income per weighted average common

share — basic

Weighted average number of common shares

outstanding — diluted

(Loss)/income from discontinued operations per weighted
average common share — diluted
Net (loss)/income per weighted average common

share — diluted

$

$

$

$

$

$

$

$

$

$

$

$

$

(In millions, except per share data)
2,701
$
343
99
(741)
(642)

3,049
376
190
(27)
163

$

2,497
(1,345)
(1,667)
13
(1,655)

(120)
(1,535)
(1,535) $

317

(8)
171
171

317

$

(16)
(626)
(626) $

316

0.04

$

(0.09) $

(2.34) $

(4.84) $

0.54

$

(1.98) $

317

322

316

0.04

$

(0.08) $

(2.34) $

(4.84) $

0.53

$

(1.98) $

2,382
39
(170)
(34)
(203)

(40)
(163)
(163)

316

(0.11)

(0.52)

316

(0.11)

(0.52)

Quarter Ended

2016

December 31

September 30

June 30

March 31

$

(In millions, except per share data)
2,248
$
164
(163)
(113)
(276)

3,421
429
128
265

393

$

2,184
(658)
(891)
(164)
(1,055)

(68)
(987)
(987) $

316

(0.52) $

(3.12) $

316

(0.52) $

(3.12) $

(9)
402
402

316

0.84

1.27

317

0.84

1.27

$

$

$

$

$

(5)
(271)
(193) $

315

(0.36) $

(0.61) $

315

(0.36) $

(0.61) $

2,659
331
(57)
104

47

(35)
82
77

315

0.33

0.24

315

0.33

0.24

212

213

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The non-guarantor subsidiaries include all of NRG's foreign subsidiaries and certain domestic subsidiaries.  NRG conducts 
much of its business through and derives much of its income from its subsidiaries.  Therefore, the Company's ability to make 
required payments with respect to its indebtedness and other obligations depends on the financial results and condition of its 
subsidiaries and NRG's ability to receive funds from its subsidiaries.  Except for NRG Bayou Cove, LLC, which is subject to 
certain restrictions under the Company's Peaker financing agreements, there are no restrictions on the ability of any of the guarantor 
subsidiaries to transfer funds to NRG.  In addition, there may be restrictions for certain non-guarantor subsidiaries.

The following condensed consolidating financial information presents the financial information of NRG Energy, Inc., the 
guarantor subsidiaries and the non-guarantor subsidiaries in accordance with Rule 3-10 under the SEC's Regulation S-X.  The 
financial information may not necessarily be indicative of results of operations or financial position had the guarantor subsidiaries 
or non-guarantor subsidiaries operated as independent entities.

In this presentation, NRG Energy, Inc. consists of parent company operations. Guarantor subsidiaries and non-guarantor 
subsidiaries of NRG are reported on an equity basis.  For companies acquired, the fair values of the assets and liabilities acquired 
have been presented on a push-down accounting basis.

In addition, the condensed parent company financial statements are provided in accordance with Rule 12-04, Schedule I of 
Regulation S-X, as the restricted net assets of NRG Energy, Inc.’s subsidiaries exceed 25 percent of the consolidated net assets of 
NRG Energy, Inc.  These statements should be read in conjunction with the consolidated statements and notes thereto of NRG 
Energy, Inc.  For a discussion of NRG Energy, Inc.'s long-term debt, see Note 12, Debt and Capital Leases to the consolidated 
financial statements.  For a discussion of NRG Energy, Inc.'s contingencies, see Note 22, Commitments and Contingencies to the 
consolidated financial statements.  For a discussion of NRG Energy, Inc.'s guarantees, see Note 26, Guarantees to the consolidated 
financial statements. 

Note 29 — Condensed Consolidating Financial Information 

As of December 31, 2017, the Company had outstanding $4.8 billion of Senior Notes due 2022 - 2028, as shown in Note 
12, Debt and Capital Leases.  These Senior Notes are guaranteed by certain of NRG's current and future 100% owned domestic 
subsidiaries, or guarantor subsidiaries.  These guarantees are both joint and several.  The non-guarantor subsidiaries include all 
of NRG's foreign subsidiaries and certain domestic subsidiaries, including GenOn and its subsidiaries and NRG Yield, Inc. and 
its subsidiaries.

Unless otherwise noted below, each of the following guarantor subsidiaries fully and unconditionally guaranteed the Senior 

Notes as of December 31, 2017:

NRG Norwalk Harbor Operations Inc.
NRG Operating Services, Inc.
NRG Oswego Harbor Power Operations Inc.
NRG PacGen Inc.
NRG Portable Power LLC
NRG Power Marketing LLC
NRG Reliability Solutions LLC
NRG Renter's Protection LLC
NRG Retail LLC
NRG Retail Northeast LLC

New Genco GP, LLC
Norwalk Power LLC
NRG Advisory Services LLC
NRG Affiliate Services Inc.
NRG Arthur Kill Operations Inc.
NRG Astoria Gas Turbine Operations Inc.
NRG Bayou Cove LLC
NRG Business Services LLC
NRG Cabrillo Power Operations Inc.
NRG California Peaker Operations LLC
NRG Cedar Bayou Development Company, LLC NRG Rockford Acquisition LLC
NRG Connected Home LLC
NRG Connecticut Affiliate Services Inc.
NRG Construction LLC
NRG Curtailment Solutions, Inc
NRG Development Company Inc.
NRG Devon Operations Inc.
NRG Dispatch Services LLC

Ace Energy, Inc.
Allied Home Warranty GP LLC
Allied Warranty LLC
Arthur Kill Power LLC
Astoria Gas Turbine Power LLC
Bayou Cove Peaking Power, LLC
BidURenergy, Inc.
Cabrillo Power I LLC
Cabrillo Power II LLC
Carbon Management Solutions LLC
Cirro Group, Inc.
Cirro Energy Services, Inc.
Conemaugh Power LLC
Connecticut Jet Power LLC
Cottonwood Development LLC
Cottonwood Energy Company LP
Cottonwood Generating Partners I LLC
Cottonwood Generating Partners II LLC
Cottonwood Generating Partners III LLC NRG Distributed Energy Resources Holdings
Cottonwood Technology Partners LP
Devon Power LLC
Dunkirk Power LLC
Eastern Sierra Energy Company LLC
El Segundo Power, LLC
El Segundo Power II LLC
Energy Alternatives Wholesale, LLC
Energy Choice Solutions LLC
Energy Plus Holdings LLC
Energy Plus Natural Gas LLC
Energy Protection Insurance Company
Everything Energy LLC
Forward Home Security, LLC
GCP Funding Company, LLC
Green Mountain Energy Company
Gregory Partners, LLC
Gregory Power Partners LLC
Huntley Power LLC
Independence Energy Alliance LLC
Independence Energy Group LLC
Independence Energy Natural Gas LLC
Indian River Operations Inc.
Indian River Power LLC
Keystone Power LLC
Langford Wind Power, LLC
Louisiana Generating LLC
Meriden Gas Turbines LLC
Middletown Power LLC
Montville Power LLC
NEO Corporation

NRG Distributed Generation PR LLC
NRG Dunkirk Operations Inc.
NRG El Segundo Operations Inc.
NRG Energy Efficiency-L LLC
NRG Energy Labor Services LLC
NRG ECOKAP Holdings LLC
NRG Energy Services Group LLC
NRG Energy Services International Inc.
NRG Energy Services LLC
NRG Generation Holdings, Inc.
NRG Greenco LLC
NRG Home & Business Solutions LLC
NRG Home Services LLC
NRG Home Solutions LLC
NRG Home Solutions Product LLC
NRG Homer City Services LLC
NRG Huntley Operations Inc.
NRG HQ DG LLC
NRG Identity Protect LLC
NRG Ilion Limited Partnership
NRG Ilion LP LLC
NRG International LLC
NRG Maintenance Services LLC
NRG Mextrans Inc.
NRG MidAtlantic Affiliate Services Inc.
NRG Middletown Operations Inc.
NRG Montville Operations Inc.
NRG New Roads Holdings LLC
NRG North Central Operations Inc.
NRG Northeast Affiliate Services Inc.

NRG Saguaro Operations Inc.
NRG Security LLC
NRG Services Corporation
NRG SimplySmart Solutions LLC
NRG South Central Affiliate Services Inc.
NRG South Central Generating LLC
NRG South Central Operations Inc.
NRG South Texas LP
NRG SPV #1 LLC
NRG Texas C&I Supply LLC
NRG Texas Gregory LLC
NRG Texas Holding Inc.
NRG Texas LLC
NRG Texas Power LLC
NRG Warranty Services LLC
NRG West Coast LLC
NRG Western Affiliate Services Inc.
O'Brien Cogeneration, Inc. II
ONSITE Energy, Inc.
Oswego Harbor Power LLC
Reliant Energy Northeast LLC
Reliant Energy Power Supply, LLC
Reliant Energy Retail Holdings, LLC
Reliant Energy Retail Services, LLC
RERH Holdings, LLC
Saguaro Power LLC
Somerset Operations Inc.
Somerset Power LLC
Texas Genco GP, LLC
Texas Genco Holdings, Inc.
Texas Genco LP, LLC
Texas Genco Services, LP
US Retailers LLC
Vienna Operations Inc.
Vienna Power LLC
WCP (Generation) Holdings LLC
West Coast Power LLC

214

215

NRG ENERGY, INC. AND SUBSIDIARIES

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS

CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE (LOSS)/INCOME

For the Year Ended December 31, 2017 

For the Year Ended December 31, 2017 

Net Loss
Other Comprehensive (Loss)/Income, net of tax

Unrealized gain on derivatives, net

Foreign currency translation adjustments, net

Available-for-sale securities, net

Defined benefit plan, net

Other comprehensive (loss)/income

Comprehensive Loss

Less: Comprehensive loss attributable to

noncontrolling interests and redeemable
noncontrolling interests

Comprehensive Loss Attributable to NRG

Energy, Inc.

Guarantor
Subsidiaries

Non-
Guarantor
Subsidiaries

NRG Energy, 
Inc. 
(Note Issuer)

(In millions)

Eliminations(a)

Consolidated
Balance

$

(1,001) $

(356) $

(2,169) $

1,189

$

(2,337)

1

6

—
(24)
(17)
(1,018)

13

7

—

29

49
(307)

25

—
(8)
41

58
(2,111)

(26)
(1)
—

—
(27)
1,162

13

12
(8)
46

63
(2,274)

—

(103)

(16)

(60)

(179)

$

(1,018) $

(204) $

(2,095) $

1,222

$

(2,095)

(a)  All significant intercompany transactions have been eliminated in consolidation.

Operating Revenues

Total operating revenues
Operating Costs and Expenses

Cost of operations

Depreciation and amortization

Impairment losses

Selling, general and administrative

Reorganization costs

Development costs

Total operating costs and expenses
Other income - affiliate

Gain on sale of assets
Operating (Loss)/Income

Other (Expense)/Income

Equity in (losses)/earnings of consolidated

subsidiaries

Equity in earnings/(losses) of unconsolidated

affiliates

Impairment losses on investments

Other income, net

Net loss on debt extinguishment

Interest expense

Total other expense

Loss from Continuing Operations Before
Income Taxes

Income tax (benefit)/expense
Loss from Continuing Operations
Loss from Discontinued Operations, net of income

tax
Net Loss

Guarantor
Subsidiaries

Non-Guarantor
Subsidiaries

NRG Energy, Inc.
(Note Issuer)

Eliminations (a)

Consolidated
Balance

(In millions)

$

7,182

$

3,699

$

— $

(252) $

10,629

5,373

405

1,463

371

6

—
7,618
—

4
(432)

(1,162)

—

—

9

—
(14)
(1,167)

(1,599)
(598)
(1,001)

—
(1,001)

2,353

619

246

146

—

49
3,413
—

12

298

(113)

95
(75)
17
(4)
(424)
(504)

(206)
(10)
(196)

(160)
(356)

59

32

—

393

38

18
540
87

—
(453)

(249)
—

—
(3)
—

—
(252)
—

—

—

26

1,249

(4)
(4)
12
(49)
(452)
(471)

(924)
616
(1,540)

(629)
(2,169)

(60)
—

—

—

—

1,189

1,189

—

1,189

—
1,189

7,536

1,056

1,709

907

44

67
11,319
87

16
(587)

—

31
(79)
38
(53)
(890)
(953)

(1,540)
8
(1,548)

(789)
(2,337)

Less: Net loss attributable to noncontrolling

interests and redeemable noncontrolling interests

Net Loss Attributable to NRG Energy, Inc.

$

—
(1,001) $

(108)
(248) $

(16)
(2,153) $

(60)
1,249

$

(184)
(2,153)

(a)  All significant intercompany transactions have been eliminated in consolidation.

216

217

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING BALANCE SHEETS
December 31, 2017 

Guarantor
Subsidiaries

Non-Guarantor
Subsidiaries

NRG Energy, Inc. Eliminations (a) Consolidated

Balance

(In millions)

ASSETS

Current Assets
Cash and cash equivalents
Funds deposited by counterparties
Restricted cash
Accounts receivable - trade
Inventory
Derivative instruments
Cash collateral posted in support of energy risk management

activities

Accounts receivable - affiliate
Current assets held-for-sale
Prepayments and other current assets
     Total current assets

Net Property, Plant and Equipment

Other Assets
Investment in subsidiaries
Equity investments in affiliates
Notes receivable, less current portion
Goodwill
Intangible assets, net
Nuclear decommissioning trust fund
Deferred income taxes
Derivative instruments
Non-current assets held-for-sale
Other non-current assets
    Total other assets

Total Assets

LIABILITIES AND STOCKHOLDERS' EQUITY

Current Liabilities
Current portion of long-term debt and capital leases
Accounts payable
Accounts payable - affiliate
Derivative instruments
Cash collateral received in support of energy risk management

activities

Accrued interest expense
Current liabilities - held-for-sale
Other accrued expenses and other current liabilities
Other accrued expenses and other current liabilities - affiliate
     Total current liabilities

Other Liabilities
Long-term debt and capital leases
Nuclear decommissioning reserve
Nuclear decommissioning trust liability
Postretirement and other benefit obligations
Deferred income taxes
Derivative instruments
Out-of-market contracts, net
Non-current liabilities held-for-sale
Other non-current liabilities
     Total non-current liabilities

Total Liabilities

Redeemable noncontrolling interest in subsidiaries
Stockholders' Equity

$

$

$

— $
37
4
769
339
625

170

712
8
116
2,780

2,527

(106)
—
—
360
458
692
377
121
—
51
1,953

$

348
—
504
306
193
80

1

210
107
118
1,867

11,169

28
1,036
2
179
1,291
—
(7)
40
43
458
3,070

643
—
—
4
—
9

—

(129)
—
27
554

238

7,581
2
36
—
—
—
(236)
31
—
120
7,534

$

— $
—
—
—
—
(88)

—

(698)
—
—
(786)

(26)

(7,503)
—
(36)
—
(3)
—
—
(20)
—
—
(7,562)

991
37
508
1,079
532
626

171

95
115
261
4,415

13,908

—
1,038
2
539
1,746
692
134
172
43
629
4,995

7,260

$

16,106

$

8,326

$

(8,374) $

23,318

— $

546
752
535

37

3
—
288
—
2,161

244
269
415
118
112
110
66
—
295
1,629

3,790

—
3,470

$

667
280
(202)
108

—

56
72
118
—
1,099

8,733
—
—
1
64
107
141
8
317
9,371

10,470

78
5,558

57
55
181
—

—

97
—
328
161
879

6,739
—
—
339
(155)
—
—
—
52
6,975

7,854

—
472

$

(36) $
—
(698)
(88)

—

—
—
—
—
(822)

—
—
—
—
—
(20)
—
—
—
(20)

(842)

—
(7,532)

688
881
33
555

37

156
72
734
161
3,317

15,716
269
415
458
21
197
207
8
664
17,955

21,272

78
1,968

Total Liabilities and Stockholders' Equity

$

7,260

$

16,106

$

8,326

$

(8,374) $

23,318

(a)  All significant intercompany transactions have been eliminated in consolidation.

NRG ENERGY, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
For the Year Ended December 31, 2017 

Guarantor
Subsidiaries

Non-Guarantor
Subsidiaries

NRG Energy, Inc.
(Note Issuer)

Eliminations(a)

Consolidated
Balance

Cash Flows from Operating Activities
Net loss
Loss from discontinued operations
Net loss from continuing operations

$

$

(1,001)
—
(1,001)

Adjustments to reconcile net loss to net cash provided by operating activities:
Equity in earnings and distributions from unconsolidated affiliates
Depreciation and amortization
Provision for bad debts
Amortization of nuclear fuel
Amortization of financing costs and debt discount/premiums
Adjustment for debt extinguishment
Amortization of intangibles and out-of-market contracts
Amortization of unearned equity compensation
Net gain on sale of assets and equity method investments
Impairment losses
Changes in derivative instruments
Changes in deferred income taxes and liability for uncertain tax benefits
Changes in collateral deposits in support of energy risk management activities
Proceeds from sale of emission allowances
Changes in nuclear decommissioning trust liability
Cash (used)/provided by changes in other working capital

Cash provided by continuing operations
Cash used by discontinued operations
Net Cash Provided by Operating Activities
Cash Flows from Investing Activities
Dividends from NRG Yield, Inc.
Acquisition of Drop Down Assets, net of cash acquired
Intercompany dividends
Acquisition of businesses, net of cash acquired
Capital expenditures
Net cash proceeds from notes receivable
Proceeds from renewable energy grants
Proceeds from sale of emission allowances
Investments in nuclear decommissioning trust fund securities
Proceeds from sales of nuclear decommissioning trust fund securities
Proceeds from sale of assets, net
Investments in unconsolidated affiliates
Other

Cash (used)/provided by continuing operations
Cash used by discontinued operations
Net Cash (Used)/Provided by Investing Activities
Cash Flows from Financing Activities
Dividends from NRG Yield, Inc.
Payments from/(for) intercompany loans
Acquisition of Drop Down Assets, net of cash acquired
Intercompany dividends
Payment of dividends to common and preferred stockholders
Net receipts from settlement of acquired derivatives that include financing

elements

Payments for debt extinguishment costs
Distributions from, net of contributions to, noncontrolling interest in
subsidiaries

Payments from issuance of common stock
Proceeds from issuance of long-term debt
Payment of debt issuance and hedging costs
Payments for short and long-term debt
Receivable from affiliate
Other

Cash provided/(used) by continuing operations
Cash used by discontinued operations
Net Cash Provided/(Used) by Financing Activities

Effect of exchange rate changes on cash and cash equivalents
Change in cash from discontinued operations

Net Increase/(Decrease) in Cash and Cash Equivalents, Restricted Cash, and
Funds Deposited by Counterparties

Cash and Cash Equivalents, Restricted Cash, and Funds Deposited by
Counterparties at Beginning of Period

Cash and Cash Equivalents, Restricted Cash, and Funds Deposited by
Counterparties at End of Period

(a)  All significant intercompany transactions have been eliminated in consolidation.

—
405
54
51
—
—
27
—
(18)
1,463
(100)
(300)
(98)
25
11
(363)
156
—
156

—
—
—
(14)
(183)
—
8
66
(512)
501
33
—
18
(83)
—
(83)

—
(45)
—
—
—

—

—

—

—
—
—
—
—
—
(45)
—
(45)
—
—

28

13

(356)
(160)
(196)

5
619
2
—
42
4
81
—
(16)
321
(69)
69
18
—
—
(164)
716
(38)
678

—
(249)
—
(27)
(906)
17
—
—
—
—
54
(40)
(6)
(1,157)
(53)
(1,210)

(94)
13
—
(129)
—

2

—

95

—
1,186
(47)
(647)
(125)
(10)
244
(224)
20
(1)
(315)

(198)

1,050

$

$

(2,169)
(629)
(1,540)

$

1,189
—
1,189

(2,337)
(789)
(1,548)

4
32
12
—
18
49
—
35
—
4
24
322
—
—
—
1,593
553
—
553

94
—
129
—
(22)
—
—
—
—
—
—
—
—
201
—
201

—
32
249
—
(38)

—

(42)

—

(2)
1,084
(16)
(1,701)
—
—
(434)
—
(434)
—
—

320

323

46
—
—
—
—
—
—
—
—
—
(26)
—
—
—
—
(1,209)
—
—
—

(94)
249
(129)
—
—
—
—
—
—
—
—
—
—
26
—
26

94
—
(249)
129
—

—

—

—

—
—
—
—
—
—
(26)
—
(26)
—
—

—

—

55
1,056
68
51
60
53
108
35
(34)
1,788
(171)
91
(80)
25
11
(143)
1,425
(38)
1,387

—
—
—
(41)
(1,111)
17
8
66
(512)
501
87
(40)
12
(1,013)
(53)
(1,066)

—
—
—
—
(38)

2

(42)

95

(2)
2,270
(63)
(2,348)
(125)
(10)
(261)
(224)
(485)
(1)
(315)

150

1,386

$

41

$

852

$

643

$

— $

1,536

218

219

 
 
 
 
 
 
NRG ENERGY, INC. AND SUBSIDIARIES

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS

CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE (LOSS)/INCOME

For the Year Ended December 31, 2016 

For the Year Ended December 31, 2016 

Net Income/(Loss)
Other Comprehensive Income, net of tax

Unrealized gain on derivatives, net

Foreign currency translation adjustments, net

Available-for-sale securities, net

Defined benefit plan, net

Other comprehensive income

Comprehensive Income/(Loss)

Less: Comprehensive (loss)/income

attributable to noncontrolling interests and
redeemable noncontrolling interests
Comprehensive Income/(Loss) Attributable to

NRG Energy, Inc.

Dividends for preferred shares

Gain on redemption of preferred shares
Comprehensive Income/(Loss) Available for

Common Stockholders

Guarantor
Subsidiaries

Non-Guarantor
Subsidiaries

NRG Energy, Inc. 
(Note Issuer)

Eliminations(a)

Consolidated
Balance

$

567

$

(538) $

(718) $

(202) $

(891)

(In millions)

—

(1)

—

34

33
600

—

600

—

—

32
(1)
—
(13)
18
(520)

(103)

(417)
—

—

89
(1)
1
(51)
38
(680)

56

(736)
5
(78)

(86)
2

—

33
(51)
(253)

(70)

(183)
—

—

35
(1)
1

3

38
(853)

(117)

(736)
5
(78)

$

600

$

(417) $

(663) $

(183) $

(663)

(a)  All significant intercompany transactions have been eliminated in consolidation.

Operating Revenues

Total operating revenues
Operating Costs and Expenses

Cost of operations

Depreciation and amortization

Impairment losses

Selling, general and administrative

Development costs

Total operating costs and expenses

Other income - affiliate

Loss on sale of assets
Operating Income/(Loss)

Other (Expense)/Income
Equity in (losses)/earnings of consolidated

subsidiaries

Equity in earnings/(losses) of unconsolidated

affiliates

Impairment losses on investments

Other income, net

Net loss on debt extinguishment

Interest expense

Total other expense

Income/(Loss) from Continuing  Operations
Before Income Taxes

Income tax (benefit)/expense

 Income/(Loss) from Continuing Operations

Income from Discontinued Operations, net of

income tax

Net Income/(Loss)

Less: Net (loss)/income attributable to

noncontrolling interests and redeemable
noncontrolling interests

Net Income/(Loss) Attributable to NRG Energy,
Inc.

Guarantor
Subsidiaries

Non-Guarantor
Subsidiaries

NRG 
Energy, Inc.
(Note Issuer)

(In millions)

Eliminations (a)

Consolidated
Balance

$

7,509

$

3,222

$

— $

(219) $

10,512

5,402

565

378

415

—
6,760

—
(1)
748

(176)

5

—

4

—
(15)
(182)

566
(1)
567

—

567

2,080

581

324

192

59
3,236

—

—
(14)

(5)

36
(252)
23
(4)
(396)
(598)

(612)
7
(619)

81
(538)

42

26

—

488

30
586

193
(79)
(472)

313

(4)
(16)
9
(138)
(484)
(320)

(792)
(63)
(729)

11
(718)

(223)
—

—

—

—
(223)
—

—

4

(132)

(10)
—
(2)
—

—
(144)

(140)
62
(202)

—
(202)

7,301

1,172

702

1,095

89
10,359

193
(80)
266

—

27
(268)
34
(142)
(895)
(1,244)

(978)
5
(983)

92
(891)

—

(103)

56

(70)

(117)

$

567

$

(435) $

(774) $

(132) $

(774)

(a)  All significant intercompany transactions have been eliminated in consolidation.

220

221

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING BALANCE SHEETS

December 31, 2016 

Guarantor
Subsidiaries

Non-Guarantor
Subsidiaries

NRG Energy, Inc.

Eliminations (a)

Consolidated
Balance

ASSETS

Current Assets
Cash and cash equivalents
Funds deposited by counterparties
Restricted cash
Accounts receivable - trade
Inventory
Derivative instruments
Cash collateral posted in support of energy risk management

activities

Accounts receivable - affiliate
Current assets held-for-sale
Prepayments and other current assets
Current assets - discontinued operations
Total current assets
Net Property, Plant and Equipment
Other Assets
Investment in subsidiaries
Equity investments in affiliates
Notes receivable, less current portion
Goodwill
Intangible assets, net
Nuclear decommissioning trust fund
Derivative instruments
Deferred income taxes
Non-current assets held for sale
Other non-current assets
Non-current assets - discontinued operations
Total other assets
Total Assets

LIABILITIES AND STOCKHOLDERS' EQUITY

Current Liabilities
Current portion of long-term debt and capital leases
Accounts payable
Accounts payable - affiliate
Derivative instruments
Cash collateral received in support of energy risk management

activities

Accrued interest expense
Other accrued expenses and other current liabilities
Current liabilities - discontinued operations
Total current liabilities
Other Liabilities
Long-term debt and capital leases
Nuclear decommissioning reserve
Nuclear decommissioning trust liability
Postretirement and other benefit obligations
Deferred income taxes
Derivative instruments
Out-of-market contracts, net
Non-current liabilities held-for-sale
Other non-current liabilities
Other non-current liabilities - discontinued operations
Total non-current liabilities
Total Liabilities
Redeemable noncontrolling interest in subsidiaries
Stockholders' Equity
Total Liabilities and Stockholders' Equity

$

— $

2
11
734
482
962

116

307
—
76
—
2,690
4,219

1,090
(13)
—
359
592
610
144
3
—
67
—
2,852
9,761

$

— $

501
753
947

81

3
313
—
2,598

244
287
339
113
186
157
80
—
283
—
1,689
4,287
—
5,474
9,761

$

$

$

$

(a)  All significant intercompany transactions have been eliminated in consolidation.

$

615
—
435
321
239
196

34

(254)
9
152
1,919
3,666
10,926

145
1,103
16
303
1,384
—
44
—
10
446
2,961
6,412
21,004

498
247
(443)
237

—

54
155
1,210
1,958

8,252
—
—
122
125
170
150
11
309
3,184
12,323
14,281
46
6,677
21,004

$

$

$

323
—
—
3
—
1

—

200
—
62
—
589
251

10,128
30
(76)
—
—
—
36
222
—
328
—
10,668
11,508

$

$

(58) $
34
(200)
—

—

123
342
—
241

7,461
—
—
275
(291)
—
—
—
74
—
7,519
7,760
—
3,748
11,508

$

— $
—
—
—
—
(92)

—

(139)
—
—
—
(231)
(27)

(11,363)
—
76
—
(3)
—
(43)
—
—
—
—
(11,333)
(11,591) $

$

76
—
(79)
(92)

—

—
—
—
(95)

—
—
—
—
—
(43)
—
—
—
—
(43)
(138)
—
(11,453)
(11,591) $

938
2
446
1,058
721
1,067

150

114
9
290
1,919
6,714
15,369

—
1,120
16
662
1,973
610
181
225
10
841
2,961
8,599
30,682

516
782
31
1,092

81

180
810
1,210
4,702

15,957
287
339
510
20
284
230
11
666
3,184
21,488
26,190
46
4,446
30,682

NRG ENERGY, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
For the Year Ended December 31, 2016 

Guarantor
Subsidiaries

Non-Guarantor
Subsidiaries

NRG Energy, Inc.
(Note Issuer)
(In millions)

Eliminations(a)

Consolidated
Balance

Cash Flows from Operating Activities
Net income/(loss)
Income from discontinued operations
Net income/(loss) from continuing operations

Adjustments to reconcile net income/(loss) to net cash provided by
operating activities:

Equity in earnings and distribution of unconsolidated affiliates
Depreciation and amortization
Provision for bad debts
Amortization of nuclear fuel
Amortization of financing costs and debt discount/premiums
Adjustment for debt extinguishment
Amortization of intangibles and out-of-market contracts
Amortization of unearned equity compensation
Net loss on sale of assets and equity method investments, net
Impairment losses
Changes in derivative instruments
Changes in deferred income taxes and liability for uncertain tax
benefits
Changes in collateral deposits in support of energy risk
management activities
Proceeds from sale of emission allowances
Changes in nuclear decommissioning trust liability
Cash (used)/provided by changes in other working capital

Cash provided by continuing operations
Cash used by discontinued operations
Net Cash Provided by Operating Activities
Cash Flows from Investing Activities
Dividends from NRG Yield, Inc.
Intercompany dividends
Acquisition of Drop Down Assets, net of cash acquired
Acquisition of businesses, net of cash acquired
Capital expenditures
Net cash proceeds from notes receivable
Proceeds from renewable energy grants
Purchases of emission allowances, net of proceeds
Investments in nuclear decommissioning trust fund securities
Proceeds from sales of nuclear decommissioning trust fund

securities

Proceeds from sale of assets, net
Investments in unconsolidated affiliates
Other

Cash (used)/provided by continuing operations
Cash provided by discontinued operations
Net Cash (Used)/Provided by Investing Activities
Cash Flows from Financing Activities
Dividends from NRG Yield, Inc.
Intercompany dividends
Payments (for)/from intercompany loans
Acquisition of Drop Down Assets, net of cash acquired
Payment of dividends to common and preferred stockholders
Net receipts from settlement of acquired derivatives that include

financing elements

Payment for preferred shares
Payments for debt extinguishment costs
Distributions from, net of contributions to, noncontrolling interest in

subsidiaries

Proceeds from issuance of common stock
Proceeds from issuance of long-term debt
Payment of debt issuance and hedging costs
Payments for short and long-term debt
Other

Cash (used)/provided by continuing operations
Cash provided by discontinued operations
Net Cash (Used)/Provided by Financing Activities

Effect of exchange rate changes on cash and cash equivalents
Change in cash from discontinued operations

Net (Decrease)/Increase in Cash and Cash Equivalents, Restricted
Cash, and Funds Deposited by Counterparties
Cash and Cash Equivalents, Restricted Cash, and Funds Deposited
by Counterparties at Beginning of Period
Cash and Cash Equivalents, Restricted Cash, and Funds Deposited
by Counterparties at End of Period

$

$

567
—
567

(538) $
81
(619)

(718) $
11
(729)

(202) $
—
(202)

(5)
565
41
49
—
—
39
—
—
378
(77)

(1)

437

34
41
(1,815)
253
—
253

—
—
—
—
(180)
—
—
(1)
(551)

510

—
3
27
(192)
—
(192)

—
(52)
(52)
—
—

—

—
—

—

—
—
—
(1)
(3)
(108)
—
(108)
—
—

(47)

60

52
581
7
—
34
4
128
—
—
578
145

18

(39)

—
—
417
1,306
(119)
1,187

—
—
(77)
(209)
(748)
17
36
—
—

—

56
(26)
—
(951)
297
(654)

(81)
40
(49)
—
—

6

—
—

(156)

—
1,387
(29)
(983)
(10)
125
140
265
1
318

481

569

5
26
—
—
21
138
—
10
70
16
(36)

(60)

—

—
—
1,187
648
—
648

81
12
—
—
(48)
—
—
—
—

—

17
—
8
70
—
70

—
—
101
77
(76)

—

(226)
(121)

—

1
4,140
(60)
(4,924)
—
(1,088)
—
(1,088)
—
—

(370)

693

2
—
—
—
—
—
—
—
—
—
—

—

—

—
—
200
—
—
—

(81)
(12)
77
—
—
—
—
—
—

—

—
—
—
(16)
—
(16)

81
12
—
(77)
—

—

—
—

—

—
—
—
—
—
16
—
16
—
—

—

—

$

13

$

1,050

$

323

$

— $

(891)
92
(983)

54
1,172
48
49
55
142
167
10
70
972
32

(43)

398

34
41
(11)
2,207
(119)
2,088

—
—
—
(209)
(976)
17
36
(1)
(551)

510

73
(23)
35
(1,089)
297
(792)

—
—
—
—
(76)

6

(226)
(121)

(156)

1
5,527
(89)
(5,908)
(13)
(1,055)
140
(915)
1
318

64

1,322

1,386

222

(a) All significant intercompany transactions have been eliminated in consolidation.

223

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NRG ENERGY, INC. AND SUBSIDIARIES

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS

CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE (LOSS)/INCOME

For the Year Ended December 31, 2015 

For the Year Ended December 31, 2015 

Net Loss
Other Comprehensive (Loss)/Income, net of
tax

Unrealized (loss)/gain on derivatives, net

Foreign currency translation adjustments, net

Available-for-sale securities, net

Defined benefit plan, net

Other comprehensive (loss)/income

Comprehensive Loss

Less: Comprehensive (loss)/income

attributable to noncontrolling interest
Comprehensive Loss Attributable to NRG

Energy, Inc.

Dividends for preferred shares

Comprehensive Loss Available for Common

Stockholders

Guarantor
Subsidiaries

Non-Guarantor
Subsidiaries

NRG Energy, Inc. 
(Note Issuer)

Eliminations(a)

Consolidated
Balance

$

(2,449) $

(484) $

(6,351) $

2,848

$

(6,436)

(In millions)

(8)

—

—

(22)

(30)
(2,479)

—

(2,479)

—

(16)
(7)
(1)
(15)
(39)
(523)

(42)

(481)
—

48
(4)
18
(42)
20
(6,331)

(39)
—

—

89

50
2,898

(15)
(11)
17

10

1
(6,435)

31

(62)

(73)

(6,362)
20

2,960

—

(6,362)
20

$

(2,479) $

(481) $

(6,382) $

2,960

$

(6,382)

(a)  All significant intercompany transactions have been eliminated in consolidation.

Operating Revenues

Total operating revenues
Operating Costs and Expenses

Cost of operations

Depreciation and amortization

Impairment losses

Selling, general and administrative

Development costs

Total operating costs and expenses
Other income - affiliate
Gain on postretirement benefits curtailment

Operating Loss

Other (Expense)/Income

Equity in losses of consolidated subsidiaries

Equity in earnings of unconsolidated affiliates

Impairment losses on investments

Other income, net

Loss on sale of equity-method investment

Net (loss)/gain on debt extinguishment

Interest expense

Total other expense

Loss from Continuing  Operations Before
Income Taxes

Income tax (benefit)/expense
Loss from Continuing Operations

Loss/(income) from Discontinued Operations, net

of income tax

Net Loss

Less: Net (loss)/income attributable to

noncontrolling interests and redeemable
noncontrolling interests

Net Loss Attributable to NRG Energy, Inc.

$

Guarantor
Subsidiaries

Non-Guarantor
Subsidiaries

NRG Energy, Inc. Eliminations (a)

Consolidated
Balance

(In millions)

$

9,881

$

2,541

$

— $

(94) $

12,328

7,610

751

4,494

468

—

13,323
—
—
(3,442)

(109)
8

—

4

—

—
(14)
(111)

(3,553)
(1,104)
(2,449)

—
(2,449)

1,470

580

366

204

61

2,681
—
21
(119)

(1)
37
(25)
21

—
(9)
(366)
(343)

(462)
(93)
(369)

(115)
(484)

14

20

—

556

93

683
193
—
(490)

(2,800)
—
(31)
1
(14)
19
(557)
(3,382)

(3,872)
2,489
(6,361)

10
(6,351)

(94)
—

—

—

—
(94)
—
—

—

2,910
(9)
—

—

—

—

—

2,901

2,901

53

2,848

—

2,848

9,000

1,351

4,860

1,228

154

16,593
193
21
(4,051)

—

36
(56)
26
(14)
10
(937)
(935)

(4,986)
1,345
(6,331)

(105)
(6,436)

—
(2,449) $

(23)
(461) $

31
(6,382) $

(62)
2,910

$

(54)
(6,382)

(a)  All significant intercompany transactions have been eliminated in consolidation.

224

225

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS

For the Years Ended December 31, 2017, 2016, and 2015 

Allowance for doubtful accounts, deducted from

accounts receivable

Year Ended December 31, 2017
Year Ended December 31, 2016

Year Ended December 31, 2015
Income tax valuation allowance, deducted from 

deferred tax assets(b)

Balance at
Beginning of
Period

Charged to
Costs and
Expenses

Charged to
Other Accounts

(In millions)

Deductions

Balance at
End of Period

$

$

29
21

21

$

56
47

62

— $
—

—

(57) (a) $
(39) (a)
(62) (a)

28

29

21

Year Ended December 31, 2017

Year Ended December 31, 2016

Year Ended December 31, 2015

$

4,116

$

3,575

265

(151) $
306

3,039

(15) $ (2,087) (c) $
235

—  

271

—

1,863

4,116

3,575

(a)  Represents principally net amounts charged as uncollectible.
(b) 

Includes income tax valuation allowance deducted from deferred tax assets recorded as discontinued operations, which amounted to $2,087 million and 
$2,194 million as of December 31, 2016 and 2015, respectively.

(c)  Represents deconsolidation of GenOn due to its petition for bankruptcy on June 14, 2017.

NRG ENERGY, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
For the Year Ended  December 31, 2015

Cash Flows from Operating Activities
Net loss
(Loss)/income from discontinued operations
Net loss from continuing operations

Adjustments to reconcile net loss to net cash (used)/provided by
operating activities:

Equity in earnings and distribution of unconsolidated affiliates
Depreciation and amortization
Provision for bad debts
Amortization of nuclear fuel
Amortization of financing costs and debt discount/premiums
Adjustment for debt extinguishment
Amortization of intangibles and out-of-market contracts
Amortization of unearned equity compensation
Net loss on sale of assets and equity method investments
Gain on post retirement benefits curtailment
Impairment losses
Changes in derivative instruments
Changes in deferred income taxes and liability for uncertain tax
benefits
Changes in collateral deposits in support of energy risk
management activities
Proceeds from sale of emission allowances
Changes in nuclear decommissioning trust liability
Cash (used)/provided by changes in other working capital

Cash (used)/provided by continuing operations
Cash provided by discontinued operations
Net Cash (Used)/Provided by Operating Activities
Cash Flows from Investing Activities
Dividends from NRG Yield, Inc.
Intercompany dividends
Acquisition of Drop Down Assets, net of cash acquired
Acquisition of business, net of cash acquired
Capital expenditures
Net cash proceeds from notes receivable
Proceeds from renewable energy grants
Proceeds from emission allowances, net of purchases
Investments in nuclear decommissioning trust fund securities
Proceeds from sales of nuclear decommissioning trust fund

securities

Proceeds from sale of assets, net
Investments in unconsolidated affiliates
Other

Cash (used)/provided by continuing operations
Cash used by discontinued operations
Net Cash (Used)/Provided by Investing Activities
Cash Flows from Financing Activities

Dividends from NRG Yield, Inc.
Intercompany dividends
Payments from/(for) intercompany loans
Acquisition of Drop Down Assets, net of cash acquired
Payment of dividends to common and preferred stockholders
Net receipts from settlement of acquired derivatives that include

financing elements
Payment for treasury stock
Distributions from, net of contributions to, noncontrolling

interest in subsidiaries

Proceeds from sale of noncontrolling interests in subsidiaries
Proceeds from issuance of common stock
Proceeds from issuance of long-term debt
Payment of debt issuance and hedging costs
Payments for short and long-term debt
Other

Cash provided/(used) by continuing operations
Cash used by discontinued operations
Net Cash Provided/(Used) by Financing Activities

Effect of exchange rate changes on cash and cash equivalents
Change in cash from discontinued operations

Net Increase/(Decrease) in Cash and Cash Equivalents, Restricted
Cash, and Funds Deposited by Counterparties
Cash and Cash Equivalents, Restricted Cash, and Funds Deposited
by Counterparties at Beginning of Period
Cash and Cash Equivalents, Restricted Cash, and Funds Deposited
by Counterparties at End of Period

Guarantor
Subsidiaries

Non-Guarantor
Subsidiaries

NRG Energy, Inc.
(Note Issuer)
(In millions)

Eliminations(a)

Consolidated
Balance

$

(2,449) $
—
(2,449)

(484) $
(115)
(369)

(6,351) $
10
(6,361)

$

2,848
—
2,848

(6,436)
(105)
(6,331)

(5)
751
58
45
—
—
52
—
—
—
4,494
264

(1,092)

(323)

(24)
(2)
(8,656)
(6,887)
—
(6,887)

—
—
—
—
(316)
—
—
41
(629)

631

—
1
—
(272)
—
(272)

—
—
7,183
—
—

—

—

—

—
—
—
—
—
—
7,183
—
7,183
—
—

24

36

54
580
3
—
21
9
99
(2)
—
(21)
391
(29)

(237)

(11)

—
—
(907)
(419)
62
(357)

—
—
(698)
(31)
(654)
18
82
—
—

—

1
(357)
16
(1,623)
(259)
(1,882)

(70)
(33)
1,258
—
—

14

—

47

600
—
953
(21)
(1,116)
(22)
1,610
(55)
1,555
10
(252)

(422)

991

—
20
3
—
26
(19)
—
41
14
—
31
—

2,655

—

—
—
12,183
8,593
—
8,593

70
33
—
—
(59)
—
—
—
—

—

26
(39)
—
31
—
31

—
—
(8,441)
698
(201)

—

(437)

—

—
1
51
—
(246)
—
(8,575)
—
(8,575)
—
—

49

644

(12)
—
—
—
—
—
—
—
—
—
—
—

—

—

—
—
(2,836)
—
—
—

(70)
(33)
698
—
—
—
—
—
—

—

—
—
—
595
—
595

70
33
—
(698)
—

—

—

—

—
—
—
—
—
—
(595)
—
(595)
—
—

—

—

$

60

$

569

$

693

$

— $

37
1,351
64
45
47
(10)
151
39
14
(21)
4,916
235

1,326

(334)

(24)
(2)
(216)
1,287
62
1,349

—
—
—
(31)
(1,029)
18
82
41
(629)

631

27
(395)
16
(1,269)
(259)
(1,528)

—
—
—
—
(201)

14

(437)

47

600
1
1,004
(21)
(1,362)
(22)
(377)
(55)
(432)
10
(252)

(349)

1,671

1,322

(a) All significant intercompany transactions have been eliminated in consolidation.
226

227

 
 
 
 
 
   
 
 
 
 
 
   
 
 
 
Number

Description

Method of Filing

EXHIBIT INDEX

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

Third Amended Joint Plan of Reorganization of NRG Energy, Inc., 
NRG  Power  Marketing,  Inc.,  NRG  Capital  LLC,  NRG  Finance 
Company I LLC, and NRGenerating Holdings (No. 23) B.V.

Incorporated herein by reference to Exhibit 99.1 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
November 19, 2003.

First  Amended  Joint  Plan  of  Reorganization  of  NRG  Northeast 
Generating LLC (and certain of its subsidiaries), NRG South Central 
Generating (and certain of its subsidiaries) and Berrians I Gas Turbine 
Power LLC.

Incorporated herein by reference to Exhibit 99.2 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
November 19, 2003.

Acquisition  Agreement,  dated  as  of  September 30,  2005,  by  and 
among  NRG  Energy,  Inc.,  Texas  Genco  LLC  and  the  Direct  and 
Indirect Owners of Texas Genco LLC.

Incorporated herein by reference to Exhibit 2.1 to the 
Registrant's current report on Form 8-K filed on October 
3, 2005.

Purchase and Sale Agreement by and between Denali Merger Sub Inc. 
and NRG Energy, Inc. dated as of August 13, 2010.

Incorporated herein by reference to Exhibit 99.2 to the 
Registrant's  current  report  on  Form  8-K  filed  on 
August 13, 2010.

Agreement  and  Plan  of  Merger,  dated  as  of  July  20,  2012,  by  and 
among  NRG  Energy,  Inc.,  Plus  Merger  Corporation  and  GenOn 
Energy, Inc.

Incorporated herein by reference to Exhibit 2.1 to the 
Registrant's current report on Form 8-K filed on July 23, 
2012.

Plan Sponsor Agreement, dated October 18, 2013, by and among NRG 
Energy, Inc.,  NRG  Energy  Holdings, Inc.,  Edison  Mission  Energy, 
certain of Edison Mission Energy’s debtor subsidiaries, the Official 
Committee of Unsecured Creditors of Edison Mission Energy and its 
affiliated  debtors,  the  PoJo  Parties  (as  defined  therein)  and  the 
proponent noteholders thereto.

Incorporated  herein  by  reference  to  Exhibit  2.1  to 
Amendment No. 1 to the Registrant’s current report on 
Form 8-K filed on October 21, 2013.

Asset Purchase Agreement, dated October 18, 2013, by and among 
NRG Energy, Inc., Edison Mission Energy and NRG Energy Holdings 
Inc.

Incorporated  herein  by  reference  to  Exhibit  2.2  to 
Amendment No. 1 to the Registrant’s current report on 
Form 8-K filed on October 21, 2013.

Third Amended Joint Plan of Reorganization of GenOn Energy, Inc. 
and its Debtor Affiliates.

Incorporated herein by reference to Exhibit 2.1 to the 
Registrant's  current  report  on  Form  8-K  filed  on 
December 18, 2017.

2.9†^

2.10^

Purchase and Sale Agreement, dated as of February 6, 2018, by and 
among NRG Energy, Inc. and NRG Repowering Holdings LLC, and 
GIP III Zephyr Acquisition Partners, L.P.

Purchase and Sale Agreement, dated as of February 6, 2018, by and 
between NRG Energy, Inc., NRG South Central Generating LLC, and 
Cleco Energy LLC.

Filed herewith.

Filed herewith.

3.1

3.2

3.3

3.4

3.5

3.6

3.7

4.1

Amended and Restated Certificate of Incorporation.

Certificate  of Amendment  to Amended  and  Restated  Certificate  of 
Incorporation.

Fourth Amended and Restated By-Laws.

Certificate  of  Designations  relating  to  the  Series 1  Exchangeable 
Limited  Liability  Company  Preferred  Interests  of  NRG  Common 
Stock Finance I LLC, as filed with the Secretary of State of Delaware 
on August 4, 2006.

Certificate of Amendment to Certificate of Designations relating to 
the  Series 1  Exchangeable  Limited  Liability  Company  Preferred 
Interests of NRG Common Stock Finance I LLC, as filed with the 
Secretary of State of Delaware on February 27, 2008.

Second  Certificate  of  Amendment  to  Certificate  of  Designations 
relating  to  the  Series 1  Exchangeable  Limited  Liability  Company 
Preferred Interests of NRG Common Stock Finance I LLC, as filed 
with the Secretary of State of Delaware on August 8, 2008.

Incorporated herein by reference to Exhibit 3.1 to the 
Registrant's quarterly report on Form 10-Q filed on May 
3, 2012.

Incorporated herein by reference to Exhibit 3.1 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
December 14, 2012.

Incorporated herein by reference to Exhibit 3.1 to the 
Registrant's  current  report  on  Form  8-K  filed  on 
February 13, 2017.

Incorporated herein by reference to Exhibit 10.7 to the 
Registrant's current report on Form 8-K filed on August 
10, 2006.

Incorporated herein by reference to Exhibit 3.1 to the 
Registrant's quarterly report on Form 10-Q filed on May 
1, 2008.

Incorporated herein by reference to Exhibit 3.1 to the 
Registrant's  quarterly  report  on  Form 10-Q  filed  on 
October 30, 2008.

Certificate of Designations of 2.822% Convertible Perpetual 
Preferred Stock, as filed with the Secretary of State of the State of 
Delaware on December 30, 2014.

Incorporated herein by reference to Exhibit 3.1 to the 
Registrant's  current  report  on  Form  8-K  filed  on 
December 30, 2014.

Supplemental Indenture, dated as of December 30, 2005, among NRG 
Energy, Inc., the subsidiary guarantors named on Schedule A thereto 
and Law Debenture Trust Company of New York, as trustee.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's current report on Form 8-K filed on January 
4, 2006.

4.2

4.3

4.4

4.5

4.6

4.7

4.8

Amended  and  Restated  Common  Agreement  among  XL  Capital 
Assurance Inc., Goldman Sachs Mitsui Marine Derivative Products, 
L.P., Law Debenture Trust Company of New York, as Trustee, The 
Bank  of  New  York,  as  Collateral  Agent,  NRG  Peaker  Finance 
Company LLC and each Project Company Party thereto, dated as of 
January 6, 2004, together with Annex A to the Common Agreement.

Amended  and  Restated  Security  Deposit Agreement  among  NRG 
Peaker  Finance  Company,  LLC  and  each  Project  Company  party 
thereto, and the Bank of New York, as Collateral Agent and Depositary 
Agent, dated as of January 6, 2004.

NRG Parent Agreement by NRG Energy, Inc. in favor of the Bank of 
New York, as Collateral Agent, dated as of January 6, 2004.

Indenture  dated  June 18,  2002,  between  NRG  Peaker  Finance 
Company LLC, as Issuer, Bayou Cove Peaking Power LLC, Big Cajun 
I Peaking Power LLC, NRG Rockford LLC, NRG Rockford II LLC 
and Sterlington Power LLC, as Guarantors, XL Capital Assurance Inc., 
as Insurer, and Law Debenture Trust Company, as Successor Trustee 
to the Bank of New York.

Specimen of Certificate representing common stock of NRG Energy, 
Inc.

Indenture, dated February 2, 2006, among NRG Energy, Inc. and Law 
Debenture Trust Company of New York.

Thirty-Sixth Supplemental Indenture, dated August 20, 2010, among 
NRG Energy, Inc., the guarantors named therein and Law Debenture 
Trust Company of New York as Trustee, re: NRG Energy, Inc.'s 8.25% 
Senior Notes due 2020.

4.9

Form of 8.25% Senior Note due 2020.

4.10

4.11

4.12

Registration Rights Agreement, dated August 20, 2010, among NRG 
Energy,  Inc.,  the  guarantors  named  therein  and  Citigroup  Global 
Markets Inc., Banc of America Securities LLC and Deutsche Bank 
Securities Inc., as representatives of the several initial purchasers.

Forty-First Supplemental Indenture, dated as of December 15, 2010, 
among NRG Energy, Inc., the existing guarantors named therein, the 
guaranteeing  subsidiaries  named  therein  and  Law  Debenture  Trust 
Company  of  New York  as  Trustee,  re:  NRG  Energy,  Inc.'s  8.25% 
Senior Notes due 2020.

Forty-Second  Supplemental  Indenture,  dated  January 26,  2011, 
among NRG Energy, Inc., the existing guarantors named therein, the 
guaranteeing  subsidiaries  named  therein  and  Law  Debenture  Trust 
Company of New York as Trustee, re: NRG Energy, Inc.’s 7.625% 
Senior Notes due 2018.

4.13

Form of 7.625% Senior Note due 2018.

Incorporated herein by reference to Exhibit 4.9 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
March 16, 2004.

Incorporated herein by reference to Exhibit 4.10 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
March 16, 2004.

Incorporated herein by reference to Exhibit 4.11 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
March 16, 2004.

Incorporated herein by reference to Exhibit 4.23 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
March 31, 2003.

Incorporated herein by reference to Exhibit 4.3 to the
Registrant's quarterly report on Form 10-Q filed on
August 4, 2006.

Incorporated herein by reference to Exhibit 4.1 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
February 6, 2006.

Incorporated herein by reference to Exhibit 4.1 to the 
Registrant's  current  report  on  Form  8-K  filed  on 
August 20, 2010.

Incorporated herein by reference to Exhibit 4.2 to the 
Registrant's  current  report  on  Form  8-K  filed  on 
August 20, 2010.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  current  report  on  Form  8-K  filed  on 
August 20, 2010.

Incorporated herein by reference to Exhibit 4.5 to the 
Registrant's  current  report  on  Form  8-K  filed  on 
December 16, 2010.

Incorporated herein by reference to Exhibit 4.1 to the 
Registrant's current report on Form 8-K filed on January 
28, 2011.

Incorporated herein by reference to Exhibit 4.2 to the 
Registrant's current report on Form 8-K filed on January 
28, 2011.

4.14

4.15

4.16

4.17

Registration Rights Agreement, dated January 26, 2011, among NRG 
Energy, Inc.,  the  guarantors  named  therein  and  J.P.  Morgan 
Securities LLC, as initial purchaser.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's current report on Form 8-K filed on January 
28, 2011.

Forty-Eighth  Supplemental  Indenture,  dated  May 20,  2011,  among 
NRG  Energy, Inc.,  the  existing  guarantors  named  therein,  the 
guaranteeing  subsidiaries  named  therein  and  Law  Debenture  Trust 
Company  of  New York  as  Trustee,  re:  NRG  Energy,  Inc.’s  8.25% 
Senior Notes due 2020.

Forty-Ninth  Supplemental  Indenture,  dated  May 20,  2011,  among 
NRG  Energy, Inc.,  the  existing  guarantors  named  therein,  the 
guaranteeing  subsidiaries  named  therein  and  Law  Debenture  Trust 
Company of New York as Trustee, re: NRG Energy, Inc.’s 7.625% 
Senior Notes due 2018.

Fifty-First Supplemental Indenture, dated May 24, 2011, among NRG 
Energy, Inc., the existing guarantors named therein, the guaranteeing 
subsidiaries named therein and Law Debenture Trust Company of New 
York  as Trustee,  re:  NRG  Energy,  Inc.’s  7.875%  Senior  Notes  due 
2021.

Incorporated herein by reference to Exhibit 4.4 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
May 25, 2011.

Incorporated herein by reference to Exhibit 4.5 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
May 25, 2011.

Incorporated herein by reference to Exhibit 4.3 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
May 25, 2011.

228

229

 
 
 
 
 
 
4.18

Form of 7.875% Senior Note due 2021.

4.19

4.20

4.21

4.22

4.23

4.24

4.25

4.26

4.27

4.28

4.29

Registration  Rights Agreement,  dated  May 24,  2011,  among  NRG 
Energy, Inc., the guarantors named therein and Morgan Stanley & Co. 
Incorporated,  Merrill  Lynch,  Pierce,  Fenner &  Smith  Incorporated, 
Barclays  Capital Inc.,  Citigroup  Global  Markets Inc.,  Credit  Suisse 
Securities  (USA) LLC,  Deutsche  Bank  Securities Inc.,  Goldman, 
Sachs & Co., J.P. Morgan Securities LLC and RBS Securities Inc., as 
representatives of the initial purchasers.

Fifty-Fourth  Supplemental  Indenture,  dated  November 8,  2011, 
among NRG Energy, Inc., the existing guarantors named therein, the 
guaranteeing  subsidiaries  named  therein  and  Law  Debenture  Trust 
Company  of  New York  as  Trustee,  re:  NRG  Energy,  Inc.’s  8.25% 
Senior Notes due 2020.

Fifty-Fifth Supplemental Indenture, dated November 8, 2011, among 
NRG  Energy, Inc.,  the  existing  guarantors  named  therein,  the 
guaranteeing  subsidiaries  named  therein  and  Law  Debenture  Trust 
Company of New York as Trustee, re: NRG Energy, Inc.’s 7.625% 
Senior Notes due 2018.

Fifty-Seventh  Supplemental  Indenture,  dated  November 8,  2011, 
among NRG Energy, Inc., the existing guarantors named therein, the 
guaranteeing  subsidiaries  named  therein  and  Law  Debenture  Trust 
Company of New York as Trustee, re: NRG Energy, Inc.’s 7.875% 
Senior Notes due 2021.

Sixtieth Supplemental Indenture, dated April 5, 2012, among NRG 
Energy, Inc., the existing guarantors named therein, the guaranteeing 
subsidiaries named therein and Law Debenture Trust Company of New 
York as Trustee, re: NRG Energy, Inc.’s 8.25% Senior Notes due 2020.

Sixty-First Supplemental Indenture, dated April 5, 2012, among NRG 
Energy, Inc., the existing guarantors named therein, the guaranteeing 
subsidiaries named therein and Law Debenture Trust Company of New 
York  as Trustee,  re:  NRG  Energy,  Inc.’s  7.625%  Senior  Notes  due 
2018.

Sixty-Third Supplemental Indenture, dated April 5, 2012, among NRG 
Energy, Inc., the existing guarantors named therein, the guaranteeing 
subsidiaries named therein and Law Debenture Trust Company of New 
York  as Trustee,  re:  NRG  Energy,  Inc.’s  7.875%  Senior  Notes  due 
2021.

Sixty-Sixth Supplemental Indenture, dated May 9, 2012, among NRG 
Energy, Inc., the existing guarantors named therein, the guaranteeing 
subsidiaries named therein and Law Debenture Trust Company of New 
York as Trustee, re: NRG Energy, Inc.’s 8.25% Senior Notes due 2020.

Sixty-Seventh  Supplemental  Indenture,  dated  May  9,  2012,  among 
NRG  Energy, Inc.,  the  existing  guarantors  named  therein,  the 
guaranteeing  subsidiaries  named  therein  and  Law  Debenture  Trust 
Company of New York as Trustee, re: NRG Energy, Inc.’s 7.625% 
Senior Notes due 2018.

Sixty-Ninth Supplemental Indenture, dated May 9, 2012, among NRG 
Energy, Inc., the existing guarantors named therein, the guaranteeing 
subsidiaries named therein and Law Debenture Trust Company of New 
York  as Trustee,  re:  NRG  Energy,  Inc.’s  7.875%  Senior  Notes  due 
2021.

Seventieth Supplemental Indenture, dated September 24, 2012, among 
NRG  Energy, Inc.,  the  existing  guarantors  named  therein,  the 
guaranteeing  subsidiaries  named  therein  and  Law  Debenture  Trust 
Company of New York as Trustee, re: NRG Energy, Inc.’s 6.625% 
Senior Notes due 2023.

4.30

Form of 6.625% Senior Note due 2023.

4.31

Seventy-Second  Supplemental  Indenture,  dated  October  9,  2012, 
among NRG Energy, Inc., the existing guarantors named therein, the 
guaranteeing  subsidiaries  named  therein  and  Law  Debenture  Trust 
Company  of  New York  as  Trustee,  re:  NRG  Energy,  Inc.’s  8.25% 
Senior Notes due 2020.

Incorporated herein by reference to Exhibit 4.4 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
May 25, 2011.

Incorporated herein by reference to Exhibit 4.5 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
May 25, 2011.

Incorporated herein by reference to Exhibit 4.3 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
November 8, 2011.

Incorporated herein by reference to Exhibit 4.4 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
November 8, 2011.

Incorporated herein by reference to Exhibit 4.6 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
November 8, 2011.

Incorporated herein by reference to Exhibit 4.3 to the 
Registrant's current report on Form 8-K filed on April 
6, 2012.

Incorporated herein by reference to Exhibit 4.4 to the 
Registrant's current report on Form 8-K filed on April 
6, 2012.

Incorporated herein by reference to Exhibit 4.6 to the 
Registrant's current report on Form 8-K filed on April 
6, 2012.

Incorporated herein by reference to Exhibit 4.3 to the 
Registrant's current report on Form 8-K filed on May 
11, 2012.

Incorporated herein by reference to Exhibit 4.4 to the 
Registrant's current report on Form 8-K filed on May 
11, 2012.

Incorporated herein by reference to Exhibit 4.6 to the 
Registrant's current report on Form 8-K filed on May 
11, 2012.

Incorporated herein by reference to Exhibit 4.1 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
September 24, 2012.

Incorporated herein by reference to Exhibit 4.2 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
September 24, 2012.

Incorporated herein by reference to Exhibit 4.2 to the 
Registrant's current report on Form 8-K filed on October 
12, 2012.

4.32

4.33

4.34

4.35

4.36

4.37

4.38

4.39

4.40

4.41

4.42

4.43

4.44

4.45

4.46

4.47

4.48

Seventy-Third Supplemental Indenture, dated October 9, 2012, among 
NRG  Energy, Inc.,  the  existing  guarantors  named  therein,  the 
guaranteeing  subsidiaries  named  therein  and  Law  Debenture  Trust 
Company of New York as Trustee, re: NRG Energy, Inc.’s 7.625% 
Senior Notes due 2018.

Seventy-Fifth Supplemental Indenture, dated October 9, 2012, among 
NRG  Energy, Inc.,  the  existing  guarantors  named  therein,  the 
guaranteeing  subsidiaries  named  therein  and  Law  Debenture  Trust 
Company of New York as Trustee, re: NRG Energy, Inc.’s 7.875% 
Senior Notes due 2021.

Seventy-Sixth Supplemental Indenture, dated October 9, 2012, among 
NRG  Energy, Inc.,  the  existing  guarantors  named  therein,  the 
guaranteeing  subsidiaries  named  therein  and  Law  Debenture  Trust 
Company of New York as Trustee, re: NRG Energy, Inc.’s 6.625% 
Senior Notes due 2023.

Senior Indenture, dated December 22, 2004, between Reliant Energy, 
Inc. and Wilmington Trust Company.

Fourth Supplemental Indenture, dated June 13, 2007, among Reliant 
Energy,  Inc.,  the  Guarantors  listed  therein  and  Wilmington  Trust 
Company as Trustee, re: GenOn Energy, Inc.’s 7.625% Senior Notes 
due 2014.

Fifth  Supplemental  Indenture,  dated  June  13,  2007,  among  Reliant 
Energy,  Inc.,  the  Guarantors  listed  therein  and  Wilmington  Trust 
Company as Trustee, re: GenOn Energy, Inc.’s 7.875% Senior Notes 
due 2017.

Indenture, dated May 1, 2001, between Mirant Americas Generation, 
Inc. and Bankers Trust Company as Trustee.

Incorporated herein by reference to Exhibit 4.3 to the 
Registrant's current report on Form 8-K filed on October 
12, 2012.

Incorporated herein by reference to Exhibit 4.5 to the 
Registrant's current report on Form 8-K filed on October 
12, 2012.

Incorporated herein by reference to Exhibit 4.6 to the 
Registrant's current report on Form 8-K filed on October 
12, 2012.

Incorporated  herein  by  reference  to  Exhibit  4.1  to 
GenOn Energy, Inc.’s current report on Form 8-K filed 
on December 27, 2004.

Incorporated  herein  by  reference  to  Exhibit  4.1  to 
GenOn Energy Inc.'s current report on Form 8-K filed 
on June 15, 2007.

Incorporated  herein  by  reference  to  Exhibit  4.2  to 
GenOn Energy Inc.'s current report on Form 8-K filed 
June 15, 2007.

Incorporated herein by reference to Exhibit 4.1 to Mirant 
Americas Generation, Inc.'s Registration Statement on 
Form S-4 filed on June 18, 2001.

Third Supplemental Indenture, dated May 1, 2001, between Mirant 
Americas Generation, Inc. and Bankers Trust Company as Trustee, re: 
GenOn Americas Generation, LLC’s 9.125% Senior Notes due 2031.

Incorporated herein by reference to Exhibit 4.4 to Mirant 
Americas Generation, Inc.'s Registration Statement on 
Form S-4 filed on June 18, 2001.

Fifth Supplemental Indenture, dated October 9, 2001, between Mirant 
Americas Generation, Inc. and Bankers Trust Company as Trustee, re: 
GenOn Americas Generation, LLC’s 8.5% Senior Notes due 2021.

Incorporated herein by reference to Exhibit 4.6 to Mirant 
Americas Generation, Inc.'s Registration Statement on 
Form S-4/A filed on May 7, 2002.

Sixth  Supplemental  Indenture,  dated  November  1,  2001,  between 
Mirant Americas Generation LLC and Bankers Trust Company, re: 
Indenture, dated May 1, 2001.

Incorporated herein by reference to Exhibit 4.6 to Mirant 
Corporation's  annual  report  on  Form  10-K  filed  on 
February 27, 2009.

Seventh  Supplemental  Indenture,  dated  January  3,  2006,  between 
Mirant Americas  Generation  LLC  and  Wells  Fargo  Bank  National 
Association (as successor to Bankers Trust Company), re: Indenture, 
dated May 1, 2001.

Incorporated herein by reference to Exhibit 4.1 to Mirant 
Americas Generation, LLC's quarterly report on Form 
10-Q filed on May 14, 2007.

Senior Notes Indenture, dated October 4, 2010, by GenOn Escrow 
Corp. and Wilmington Trust Company as trustee, re: GenOn Energy, 
Inc.’s 9.5% Senior Notes due 2018 and 9.875% Senior Notes due 2020.

Incorporated  by  reference  to  Exhibit  4.4  to  Mirant 
Corporation's quarterly report on Form 10-Q filed on 
November 5, 2010.

Supplemental  Indenture,  dated  December  3,  2010,  by  and  among 
GenOn  Energy,  Inc.,  GenOn  Escrow  Corp.  and  Wilmington  Trust 
Company as trustee, re: GenOn Energy, Inc.’s 9.5% Senior Notes due 
2018 and 9.875% Senior Notes due 2020.

Seventy-Eighth Supplemental Indenture, dated as of January 3, 2013, 
among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and  Law 
Debenture Trust Company of New York as trustee, re: NRG Energy, 
Inc.’s 8.25% Senior Notes due 2020.

Seventy-Ninth Supplemental Indenture, dated as of January 3, 2013, 
among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and  Law 
Debenture Trust Company of New York as trustee, re: NRG Energy, 
Inc.’s 7.625% Senior Notes due 2018.

Eighty-First  Supplemental  Indenture,  dated  as  of  January  3,  2013, 
among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and  Law 
Debenture Trust Company of New York as trustee, re: NRG Energy, 
Inc.’s 7.875% Senior Notes due 2021.

Eighty-Second Supplemental Indenture, dated as of January 3, 2013, 
among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and  Law 
Debenture Trust Company of New York as trustee, re: NRG Energy, 
Inc.’s 6.625% Senior Notes due 2023.

Incorporated  by  reference  to  Exhibit  4.2  to  GenOn 
Energy  Inc.'s  current  report  on  Form  8-K  filed  on 
December 7, 2010.

Incorporated herein by reference to Exhibit 4.2 to the 
Registrant’s current report on Form 8-K filed on January 
9, 2013.

Incorporated herein by reference to Exhibit 4.3 to the 
Registrant’s current report on Form 8-K filed on January 
9, 2013.

Incorporated herein by reference to Exhibit 4.5 to the 
Registrant’s current report on Form 8-K filed on January 
9, 2013.

Incorporated herein by reference to Exhibit 4.6 to the 
Registrant’s current report on Form 8-K filed on January 
9, 2013.

230

231

 
 
 
 
 
 
4.49

4.50

4.51

4.52

4.53

4.54

4.55

4.56

4.57

4.58

4.59

4.60

4.61

4.62

4.63

4.64

4.65

Eighty-Fourth Supplemental Indenture, dated as of March 13, 2013, 
among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and  Law 
Debenture Trust Company of New York as trustee, re: NRG Energy, 
Inc.’s 8.25% Senior Notes due 2020.

Eighty-Fifth  Supplemental  Indenture,  dated  as  of  March  13,  2013, 
among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and  Law 
Debenture Trust Company of New York as trustee, re: NRG Energy, 
Inc.’s 7.625% Senior Notes due 2018.

Eighty-Seventh Supplemental Indenture, dated as of March 13, 2013, 
among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and  Law 
Debenture Trust Company of New York as trustee, re: NRG Energy, 
Inc.’s 7.875% Senior Notes due 2021.

Eighty-Eighth Supplemental Indenture, dated as of March 13, 2013, 
among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and  Law 
Debenture Trust Company of New York as trustee, re: NRG Energy, 
Inc.’s 6.625% Senior Notes due 2023.

Incorporated herein by reference to Exhibit 4.2 to the 
Registrant’s current report on Form 8-K filed on March 
13, 2013.

Incorporated herein by reference to Exhibit 4.3 to the 
Registrant’s current report on Form 8-K filed on March 
13, 2013.

Incorporated herein by reference to Exhibit 4.5 to the 
Registrant’s current report on Form 8-K filed on March 
13, 2013.

Incorporated herein by reference to Exhibit 4.6 to the 
Registrant’s current report on Form 8-K filed on March 
13, 2013.

Eighty-Ninth Supplemental Indenture, dated as of March 13, 2013, 
among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and  Law 
Debenture Trust Company of New York.

Incorporated herein by reference to Exhibit 4.7 to the 
Registrant’s current report on Form 8-K filed on March 
13, 2013.

Ninety-First Supplemental Indenture, dated as of May 2, 2013, among 
NRG Energy, Inc., the guarantors named therein and Law Debenture 
Trust Company of New York as trustee, re: NRG Energy, Inc.’s 8.25% 
Senior Notes due 2020.

Ninety-Second  Supplemental  Indenture,  dated  as  of  May  2,  2013, 
among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and  Law 
Debenture Trust Company of New York as trustee, re: NRG Energy, 
Inc.’s 7.625% Senior Notes due 2018.

Ninety-Fourth  Supplemental  Indenture,  dated  as  of  May  2,  2013, 
among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and  Law 
Debenture Trust Company of New York as trustee, re: NRG Energy, 
Inc.’s 7.875% Senior Notes due 2021.

Ninety-Fifth Supplemental Indenture, dated as of May 2, 2013, among 
NRG Energy, Inc., the guarantors named therein and Law Debenture 
Trust Company of New York as trustee, re: NRG Energy, Inc.’s 6.625% 
Senior Notes due 2023.

Ninety-Seventh  Supplemental  Indenture,  dated  as  of  September  4, 
2013,  among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and 
Law  Debenture  Trust  Company  of  New York  as  trustee,  re:  NRG 
Energy, Inc.’s 8.25% Senior Notes due 2020.

Ninety-Eighth Supplemental Indenture, dated as of September 4, 2013, 
among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and  Law 
Debenture Trust Company of New York as trustee, re: NRG Energy, 
Inc.’s 7.625% Senior Notes due 2018

One  Hundredth  Supplemental  Indenture,  dated  as  of  September  4, 
2013,  among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and 
Law  Debenture  Trust  Company  of  New York  as  trustee,  re:  NRG 
Energy, Inc.’s 7.875% Senior Notes due 2021.

One Hundred-First Supplemental Indenture, dated as of September 4, 
2013,  among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and 
Law  Debenture  Trust  Company  of  New York  as  trustee,  re:  NRG 
Energy, Inc.’s 6.625% Senior Notes due 2023.

One Hundred-Third Supplemental Indenture, dated as of October 7, 
2013,  among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and 
Law  Debenture  Trust  Company  of  New York  as  trustee,  re:  NRG 
Energy, Inc.’s 8.25% Senior Notes due 2020.

One Hundred-Fourth Supplemental Indenture, dated as of October 7, 
2013,  among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and 
Law  Debenture  Trust  Company  of  New York  as  trustee,  re:  NRG 
Energy, Inc.’s 7.625% Senior Notes due 2018.

One Hundred-Sixth Supplemental Indenture, dated as of October 7, 
2013,  among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and 
Law  Debenture  Trust  Company  of  New York  as  trustee,  re:  NRG 
Energy, Inc.’s 7.875% Senior Notes due 2021.

One Hundred-Seventh Supplemental Indenture, dated as of October 
7, 2013, among NRG Energy, Inc., the guarantors named therein and 
Law  Debenture  Trust  Company  of  New York  as  trustee,  re:  NRG 
Energy, Inc.’s 6.625% Senior Notes due 2023.

Incorporated herein by reference to Exhibit 4.2 to the 
Registrant’s current report on Form 8-K filed on May 3, 
2013.

Incorporated herein by reference to Exhibit 4.3 to the 
Registrant’s current report on Form 8-K filed on May 3, 
2013.

Incorporated herein by reference to Exhibit 4.5 to the 
Registrant’s current report on Form 8-K filed on May 3, 
2013.

Incorporated herein by reference to Exhibit 4.6 to the 
Registrant’s current report on Form 8-K filed on May 3, 
2013.

Incorporated herein by reference to Exhibit 4.2 to the 
Registrant’s  current  report  on  Form  8-K  filed  on 
September 6, 2013.

Incorporated herein by reference to Exhibit 4.3 to the 
Registrant’s  current  report  on  Form  8-K  filed  on 
September 6, 2013.

Incorporated herein by reference to Exhibit 4.5 to the 
Registrant’s  current  report  on  Form  8-K  filed  on 
September 6, 2013.

Incorporated herein by reference to Exhibit 4.6 to the 
Registrant’s  current  report  on  Form  8-K  filed  on 
September 6, 2013.

Incorporated herein by reference to Exhibit 4.2 to the 
Registrant’s current report on Form 8-K filed on October 
8, 2013.

Incorporated herein by reference to Exhibit 4.3 to the 
Registrant’s current report on Form 8-K filed on October 
8, 2013.

Incorporated herein by reference to Exhibit 4.5 to the 
Registrant’s current report on Form 8-K filed on October 
8, 2013.

Incorporated herein by reference to Exhibit 4.6 to the 
Registrant’s current report on Form 8-K filed on October 
8, 2013.

4.66

4.67

One  Hundred-Eighth  Supplemental 
Indenture,  dated  as  of 
November 13, 2013, among NRG Energy, Inc., the guarantors named 
therein and Law Debenture Trust Company of New York as trustee, 
re: NRG Energy, Inc.’s 8.5% Senior Notes due 2019, 8.25% Senior 
Notes due 2020, 7.625% Senior Notes due 2018, 7.625% Senior Notes 
due 2019, 7.875% Senior Notes due 2021 and 6.625% Senior Notes 
due 2023.

One Hundred-Ninth Supplemental Indenture, dated as of January 27, 
2014,  among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and 
Law  Debenture Trust  Company  of  New York  as Trustee,  re:  NRG 
Energy's 6.25% Senior Notes due 2022.

4.68

Form of 6.25% Senior Note due 2022.

Registration Rights Agreement, dated January 27, 2014, among NRG 
Energy, Inc., the guarantors named therein and Barclays Capital Inc., 
Deutsche  Bank  Securities  Inc.,  Goldman,  Sachs  &  Co.,  Morgan 
Stanley & Co. LLC, Credit Agricole Securities (USA) Inc., Natixis 
Securities Americas LLC and RBC Capital Markets, LLC, as initial 
purchasers.

One Hundred-Tenth Supplemental Indenture, dated as of March 24, 
2014,  among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and 
Law  Debenture  Trust  Company  of  New  York as  trustee,  re:  NRG 
Energy, Inc.'s 8.5% Senior Notes due 2019, 8.25% Senior Notes due 
2020, 7.625% Senior Notes due 2018, 7.625% Senior Notes due 2019, 
7.875% Senior Notes due 2021, 6.625% Senior Notes due 2023 and 
6.25% Senior Notes due 2022.

Incorporated herein by reference to Exhibit 4.1 to the 
Registrant’s  current  report  on  Form  8-K  filed  on 
November 13, 2013.

Incorporated herein by reference to Exhibit 4.1 to the 
Company's  Current  Report  on  Form  8-K  filed  on 
January 27, 2014.

Incorporated herein by reference to Exhibit 4.2 to the 
Company's  Current  Report  on  Form  8-K  filed  on 
January 27, 2014.

Incorporated herein by reference to Exhibit 4.3 to the 
Company's  Current  Report  on  Form  8-K  filed  on 
January 27, 2014.

Incorporated herein by reference to Exhibit 4.1 to the 
Company's Current Report on Form 8-K filed on March 
28, 2014.

Indenture, dated as of April 21, 2014, among NRG Energy, Inc., the 
guarantors named therein and Law Debenture Trust Company of New 
York as Trustee, re: NRG Energy, Inc.'s 6.25% Senior Notes due 2024.

Incorporated herein by reference to Exhibit 4.1 to the 
Company's Current Report on Form 8-K filed on April 
21, 2014.

4.72

Form of 6.25% Senior Note due 2024.

Registration Rights Agreement, dated April 21, 2014, among NRG 
Energy,  Inc.,  the  guarantors  named  therein  and  Citigroup  Global 
Markets Inc., Merrill Lynch, Pierce, Fenner & Smith Incorporated, 
Credit  Suisse  Securities  (USA),  Inc.,  J.P.  Morgan  Securities  LLC, 
Mitsubishi  UFJ  Securities  (USA),  Inc.,  SMBC  Nikko  Securities 
America, Inc. and RBS Securities Inc.

One Hundred-Eleventh Supplemental Indenture, dated as of April 28, 
2014,  among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and 
Law  Debenture  Trust  Company  of  New York  as  trustee,  re:  NRG 
Energy, Inc.'s 8.5% Senior Notes due 2019, 8.25% Senior Notes due 
2020, 7.625% Senior Notes due 2018, 7.625% Senior Notes due 2019, 
7.875% Senior Notes due 2021, 6.625% Senior Notes due 2023 and 
6.25% Senior Notes due 2022.

First Supplemental Indenture, dated as of May 2, 2014, among NRG 
Energy, Inc., the guarantors named therein and Law Debenture Trust 
Company of New York as trustee, re: NRG Energy, Inc.'s 6.25% Senior 
Notes due 2024.

Incorporated herein by reference to Exhibit 4.2 to the 
Company's Current Report on Form 8-K filed on April 
21, 2014.

Incorporated herein by reference to Exhibit 4.3 to the 
Company's Current Report on Form 8-K filed on April 
21, 2014.

Incorporated herein by reference to Exhibit 4.1 to the 
Company's Current Report on Form 8-K filed on May 
2, 2014.

Incorporated herein by reference to Exhibit 4.2 to the 
Company's Current Report on Form 8-K filed on May 
2, 2014.

One Hundred-Twelfth Supplemental Indenture, dated as of October 3, 
2014,  among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and 
Law Debenture Trust Company of New York.

Incorporated herein by reference to Exhibit 4.1 to the 
Company's  Current  Report  on  Form  8-K  filed  on 
October 3, 2014.

Second Supplemental Indenture, dated as of October 3, 2014, among 
NRG Energy, Inc., the guarantors named therein and Law Debenture 
Trust Company of New York as trustee, re: NRG Energy, Inc.'s 6.25% 
Senior Notes due 2024.

One  Hundred-Thirteenth  Supplemental  Indenture,  dated  as  of 
November 12, 2014, among NRG Energy, Inc., the guarantors named 
therein and Law Debenture Trust Company of New York as trustee, 
re: NRG Energy,  Inc.'s 8.25% Senior Notes due 2020, 7.625% Senior 
Notes due 2018, 7.875% Senior Notes due 2021, 6.625% Senior Notes 
due 2023 and 6.25% Senior Notes due 2022.

Incorporated herein by reference to Exhibit 4.2 to the 
Company's  Current  Report  on  Form  8-K  filed  on 
October 3, 2014.

Incorporated herein by reference to Exhibit 4.1 to the 
Company's  Current  Report  on  Form  8-K  filed  on 
November 14, 2014.

Third Supplemental Indenture, dated as of November 12, 2014, among 
NRG Energy, Inc., the guarantors named therein and Law Debenture 
Trust Company of New York.

Incorporated herein by reference to Exhibit 4.2 to the 
Company's  Current  Report  on  Form  8-K  filed  on 
November 14, 2014.

4.69

4.70

4.71

4.73

4.74

4.75

4.76

4.77

4.78

4.79

232

233

 
 
 
 
 
 
Incorporated herein by reference to Exhibit 4.1 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
November 25, 2014.

4.97

Third  Supplemental  Indenture,  dated August  2,  2016,  among  NRG 
Energy, Inc., the guarantors named therein and Law Debenture Trust 
Company of New York.

Incorporated herein by reference to Exhibit 4.2 to the 
Registrant's  Current  Report  on  Form  8-K,  filed  on 
August 3, 2016.

4.80

4.81

4.82

4.83

4.84

4.85

4.86

4.87

4.88

4.89

4.90

4.91

4.93

4.94

4.95

4.96

One  Hundred-Fourteenth  Supplemental  Indenture,  dated  as  of 
November 24, 2014, among NRG Energy, Inc., the guarantors named 
therein and Law Debenture Trust Company of New York, as trustee, 
re: NRG Energy,  Inc.'s 8.25% Senior Notes due 2020, 7.625% Senior 
Notes due 2018, 7.875% Senior Notes due 2021, 6.625% Senior Notes 
due 2023 and 6.25% Senior Notes due 2022.

Fourth  Supplemental  Indenture,  dated  as  of  November 24,  2014, 
among  NRG  Energy, Inc.,  the  guarantors  named  therein  and  Law 
Debenture  Trust  Company  of  New  York,  as  trustee,  re:  NRG 
Energy, Inc.'s 6.25% Senior Notes due 2024.

Incorporated herein by reference to Exhibit 4.2 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
November 25, 2014.

One Hundred-Fifteenth Supplemental Indenture, dated as of April 8, 
2015,  among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and 
Law Debenture Trust Company of New York.

Incorporated herein by reference to Exhibit 4.1 to the 
Company's current report on Form 8-K filed on April 9, 
2015.

Fifth Supplemental Indenture, dated as of April 8, 2015, among NRG 
Energy, Inc., the guarantors named therein and Law Debenture Trust 
Company of New York.

Incorporated herein by reference to Exhibit 4.2 to the 
Company's current report on Form 8-K filed on April 9, 
2015.

One Hundred-Sixteenth Supplemental Indenture, dated as of April 29, 
2015,  among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and 
Law Debenture Trust Company of New York.

Incorporated herein by reference to Exhibit 4.1 to the 
Company's current report on Form 8-K filed on April 
30, 2015.

Sixth Supplemental Indenture, dated as of April 29, 2015, among NRG 
Energy, Inc., the guarantors named therein and Law Debenture Trust 
Company of New York.

Incorporated herein by reference to Exhibit 4.2 to the 
Company's current report on Form 8-K filed on April 
30, 2015.

One Hundred-Seventeenth Supplemental Indenture, dated as of May 
22, 2015, among NRG Energy, Inc., the guarantors named therein and 
Law Debenture Trust Company of New York.

Incorporated herein by reference to Exhibit 4.1 to the 
Company's current report on Form 8-K filed on May 22, 
2015. 

Seventh Supplemental Indenture, dated as of May 22, 2015, among 
NRG Energy, Inc., the guarantors named therein and Law Debenture 
Trust Company of New York.

Incorporated herein by reference to Exhibit 4.2 to the 
Company's current report on Form 8-K filed on May 22, 
2015. 

One Hundred-Eighteenth Supplemental Indenture, dated as of October 
28, 2015, among NRG Energy, Inc., the guarantors named therein and 
Law Debenture Trust Company of New York.

Incorporated herein by reference to Exhibit 4.1 to the 
Company's  current  report  on  Form  8-K  filed  on 
November 2, 2015.

Eighth Supplemental Indenture, dated as of October 28, 2015, among 
NRG Energy, Inc., the guarantors named therein and Law Debenture 
Trust Company of New York. 

Incorporated herein by reference to Exhibit 4.2 to the 
Company's  current  report  on  Form  8-K  filed  on 
November 2, 2015.

Indenture, dated May 23, 2016, between NRG Energy, Inc. and Law 
Debenture Trust Company of New York.

Incorporated herein by reference to Exhibit 4.1 to the 
Registrant's Current Report on Form 8-K, filed on May 
23, 2016. 

Supplemental Indenture, dated May 23, 2016, among NRG Energy, 
Inc., the guarantors named therein and Law Debenture Trust Company 
of New York.

Incorporated herein by reference to Exhibit 4.2 to the 
Registrant's Current Report on Form 8-K, filed on May 
23, 2016.

4.92

Form of 7.250% Senior Note due 2026.

Registration  Rights Agreement,  dated  May  23,  2016,  among  NRG 
Energy,  Inc.,  the  guarantors  named  therein  and  Deutsche  Bank 
Securities  Inc.,  as  representative  to  the  initial  purchasers  listed  in 
Schedule I thereto.

Incorporated herein by reference to Exhibit 4.3 to the 
Registrant's Current Report on Form 8-K, filed on May 
23, 2016.

Incorporated herein by reference to Exhibit 4.4 to the 
Registrant's Current Report on Form 8-K, filed on May 
23, 2016.

One Hundred-Nineteenth Supplemental Indenture, dated as of July 19, 
2016,  among  NRG  Energy,  Inc.,  the  guarantors  named  therein  and 
Law Debenture Trust Company of New York.

Incorporated herein by reference to Exhibit 4.1 to the 
Registrant's Current Report on Form 8-K, filed on July 
25, 2016.

Ninth Supplemental Indenture, dated as of July 19, 2016, among NRG 
Energy, Inc., the guarantors named therein and Law Debenture Trust 
Company of New York.

Incorporated herein by reference to Exhibit 4.2 to the 
Registrant's Current Report on Form 8-K, filed on July 
25, 2016. 

Second  Supplemental  Indenture,  dated  as  of  July  19,  2016,  among 
NRG Energy, Inc., the guarantors named therein and Law Debenture 
Trust Company of New York.

Incorporated herein by reference to Exhibit 4.3 to the 
Registrant's Current Report on Form 8-K, filed on July 
25, 2016. 

4.98

Form of 6.625% Senior Note due 2027.

Incorporated herein by reference to Exhibit 4.3 to the 
Registrant's  Current  Report  on  Form  8-K,  filed  on 
August 3, 2016.

4.99

4.100

Registration Rights Agreement, dated August 2, 2016, among NRG 
Energy, Inc., the guarantors named therein and Morgan Stanley & Co. 
LLC, as representative to the initial purchasers listed in Schedule I 
thereto.

Incorporated herein by reference to Exhibit 4.4 to the 
Registrant's  Current  Report  on  Form  8-K,  filed  on 
August 3, 2016.

Supplemental  Indenture,  dated  December  7,  2017,  among  NRG 
Energy,  Inc.,  the  guarantors  named  therein  and  Delaware  Trust 
Company, as trustee.

Incorporated herein by reference to Exhibit 4.2 to the 
Registrant's  Current  Report  on  Form  8-K,  filed  on 
December 8, 2017.

4.101

Form of 5.75% Senior Notes due 2028 

Registration Rights Agreement, dated December 7, 2017, among NRG 
Energy,  Inc.,  the  guarantors  named  therein  and  Citigroup  Global 
Markets,  Inc.,  as  representative  to  the  initial  purchasers  listed  in 
Schedule I thereto.

Note Agreement, dated August 20, 1993, between NRG Energy, Inc., 
Energy Center, Inc. and each of the purchasers named therein.

Master Shelf and Revolving Credit Agreement, dated August 20, 1993, 
between  NRG  Energy,  Inc.,  Energy  Center,  Inc.,  The  Prudential 
Insurance Registrants of America and each Prudential Affiliate, which 
becomes party thereto.

Form of NRG Energy Inc. Long-Term Incentive Plan Deferred Stock 
Unit Agreement for Officers and Key Management.

Form of NRG Energy, Inc. Long-Term Incentive Plan Deferred Stock 
Unit Agreement for Directors.

Form of NRG Energy, Inc. Long-Term Incentive Plan Non-Qualified 
Stock Option Agreement.

Incorporated herein by reference to Exhibit 4.3 to the 
Registrant's  Current  Report  on  Form  8-K,  filed  on 
December 8, 2017.

Incorporated herein by reference to Exhibit 4.4 to the 
Registrant's  Current  Report  on  Form  8-K,  filed  on 
December 8, 2017.

Incorporated herein by reference to Exhibit 10.5 to the 
Registrant's  Registration  Statement  on  Form S-1,  as 
amended, Registration No. 333-33397.

Incorporated herein by reference to Exhibit 10.4 to the 
Registrant's  Registration  Statement  on  Form S-1,  as 
amended, Registration No. 333-33397.

Incorporated herein by reference to Exhibit 10.14 to the 
Registrant's annual report on Form 10-K filed on March 
30, 2005.

Incorporated herein by reference to Exhibit 10.15 to the 
Registrant's annual report on Form 10-K filed on March 
30, 2005.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  quarterly  report  on  Form 10-Q  filed  on 
November 9, 2004.

Form of NRG Energy, Inc. Long-Term Incentive Plan Restricted Stock 
Unit Agreement for Officers.

Filed herewith.

Form of NRG Energy, Inc. Long-Term Incentive Plan Restricted Stock 
Unit Agreement for Non-Officers.

Filed herewith

Form of NRG Energy, Inc. Long-Term Incentive Plan Performance 
Stock Unit Agreement.

Second Amended and Restated Annual Incentive Plan for Designated 
Corporate Officers.

Incorporated herein by reference to Exhibit 10.7 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
February 23, 2010.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's current report on Form 8-K filed on May 7, 
2015.

Railroad  Car  Full  Service  Master  Leasing Agreement,  dated  as  of 
February 18,  2005,  between  General  Electric  Railcar  Services 
Corporation and NRG Power Marketing Inc.

Incorporated herein by reference to Exhibit 10.28 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
March 30, 2005.

Purchase Agreement (West Coast Power) dated as of December 27, 
2005, by and among NRG Energy, Inc., NRG West Coast LLC (Buyer), 
DPC II Inc. (Seller) and Dynegy, Inc.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
December 28, 2005.

Purchase Agreement (Rocky Road Power), dated as of December 27, 
2005,  by  and  among  Termo  Santander  Holding,  L.L.C.(Buyer), 
Dynegy, Inc., NRG Rocky Road LLC (Seller) and NRG Energy, Inc.

Incorporated herein by reference to Exhibit 10.2 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
December 28, 2005.

Stock  Purchase  Agreement,  dated  as  of  August 10,  2005,  by  and 
between  NRG  Energy,  Inc.  and  Credit  Suisse  First  Boston  Capital 
LLC.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's current report on Form 8-K filed on August 
11, 2005.

Agreement  with  respect  to  the  Stock  Purchase  Agreement,  dated 
December 19,  2008,  by  and  between  NRG  Energy,  Inc.  and  Credit 
Suisse First Boston Capital LLC.

Incorporated herein by reference to Exhibit 10.13 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
February 12, 2009.

4.102

10.1

10.2

10.3*

10.4*

10.5*

10.6*

10.7*

10.8*

10.9*

10.10

10.11

10.12

10.13

10.14

234

235

 
 
 
 
 
 
10.15

10.16†

10.17*

10.18*

10.19*

10.20

10.21

10.22

10.23

10.24

10.25

10.26

10.27

10.28

10.29

10.30

10.31

10.32

10.33†

Investor  Rights Agreement,  dated  as  of  February 2,  2006,  by  and 
among NRG Energy, Inc. and Certain Stockholders of NRG Energy, 
Inc. set forth therein.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
February 8, 2006.

Terms and Conditions of Sale, dated as of October 5, 2005, between 
Texas  Genco II  LP  and  Freight  Car America,  Inc.,  (including  the 
Proposal Letter and Amendment thereto).

Incorporated herein by reference to Exhibit 10.32 to the 
Registrant's annual report on Form 10-K filed on March 
7, 2006.

Amended and Restated Employment Agreement, dated December 4, 
2008, between NRG Energy, Inc. and David Crane.

Incorporated herein by reference to Exhibit 10.16 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
February 12, 2009.

Amendment  2014-1  to  the  Amended  and  Restated  Employment 
Agreement  between  NRG  Energy,  Inc.  and  David  Crane,  dated 
December 4, 2014.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  current  report  on  Form  8-K  filed  on 
December 10, 2014.

General Release, dated January 4, 2016, between NRG Energy, Inc. 
and David Crane.

Limited  Liability  Company  Agreement  of  NRG  Common  Stock 
Finance I LLC.

Incorporated herein by reference to Exhibit 10.2 to the 
Registrant's  current  report  on  Form 8-K/A  filed  on 
January 8, 2016.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's current report on Form 8-K filed on August 
10, 2006.

Note  Purchase  Agreement,  dated  August 4,  2006,  between  NRG 
Common Stock Finance I LLC, Credit Suisse International and Credit 
Suisse Securities (USA) LLC.

Incorporated herein by reference to Exhibit 10.3 to the 
Registrant's current report on Form 8-K filed on August 
10, 2006.

Amendment  Agreement,  dated  February 27,  2008,  to  the  Note 
Purchase Agreement by and among NRG Common Stock Finance I 
LLC, Credit Suisse International, and Credit Suisse Securities (USA) 
LLC.

Amendment  Agreement,  dated  December 19,  2008,  to  the  Note 
Purchase Agreement by and among NRG Common Stock Finance I 
LLC, Credit Suisse International, and Credit Suisse Securities (USA) 
LLC.

Amendment  Agreement,  dated  December 19,  2008,  to  the  Note 
Purchase Agreement by and among NRG Common Stock Finance II 
LLC, Credit Suisse International, and Credit Suisse Securities (USA) 
LLC.

Agreement  with  respect  to  Note  Purchase  Agreement,  dated 
December 19, 2008, by and among NRG Common Stock Finance I 
LLC, NRG Energy, Inc., Credit Suisse International, and Credit Suisse 
Securities (USA) LLC.

Agreement  with  respect  to  Note  Purchase  Agreement,  dated 
December 19, 2008, by and among NRG Common Stock Finance II 
LLC, NRG Energy, Inc., Credit Suisse International, and Credit Suisse 
Securities (USA) LLC.

Incorporated herein by reference to Exhibit 10.5 to the 
Registrant's quarterly report on Form 10-Q filed on May 
1, 2008.

Incorporated herein by reference to Exhibit 10.23 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
February 12, 2009.

Incorporated herein by reference to Exhibit 10.26 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
February 12, 2009.

Incorporated herein by reference to Exhibit 10.24 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
February 12, 2009.

Incorporated herein by reference to Exhibit 10.27 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
February 12, 2009.

Preferred  Interest  Purchase  Agreement,  dated  August 4,  2006, 
between NRG Common Stock Finance I LLC, Credit Suisse Capital 
LLC and Credit Suisse Securities (USA) LLC, as agent.

Incorporated herein by reference to Exhibit 10.5 to the 
Registrant's current report on Form 8-K filed on August 
10, 2006.

Preferred Interest Amendment Agreement, dated February 27, 2008, 
by and among NRG Common Stock Finance I LLC, Credit Suisse 
Capital LLC, and Credit Suisse Securities (USA) LLC.

Incorporated herein by reference to Exhibit 10.6 to the 
Registrant's quarterly report on Form 10-Q filed on May 
1, 2008.

Preferred Interest Amendment Agreement, dated December 19, 2008, 
by and among NRG Common Stock Finance I LLC, Credit Suisse 
International, and Credit Suisse Securities (USA) LLC.

Incorporated herein by reference to Exhibit 10.31 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
February 12, 2009.

Preferred Interest Amendment Agreement, dated December 19, 2008, 
by and among NRG Common Stock Finance II LLC, Credit Suisse 
Capital LLC, and Credit Suisse Securities (USA) LLC.

Incorporated herein by reference to Exhibit 10.34 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
February 12, 2009.

Agreement  with  respect  to  Preferred  Interest  Purchase Agreement, 
dated  December 19,  2008,  by  and  among  NRG  Common  Stock 
Finance I LLC, NRG Energy, Inc., Credit Suisse Capital LLC, and 
Credit Suisse Securities (USA) LLC.

Agreement  with  respect  to  Preferred  Interest  Purchase Agreement, 
dated  December 19,  2008,  by  and  among  NRG  Common  Stock 
Finance II LLC, NRG Energy, Inc., Credit Suisse Capital LLC, and 
Credit Suisse Securities (USA) LLC.

Amended  and  Restated  Contribution  Agreement  (NRG),  dated 
March 25,  2008,  by  and  among Texas  Genco  Holdings,  Inc.,  NRG 
South Texas LP and NRG Nuclear Development Company LLC and 
Certain Subsidiaries Thereof.

Incorporated herein by reference to Exhibit 10.32 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
February 12, 2009.

Incorporated herein by reference to Exhibit 10.35 to the 
Registrant's  annual  report  on  Form 10-K  filed  on 
February 12, 2009.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's quarterly report on Form 10-Q filed on May 
1, 2008.

10.34†

10.35†

10.36†

10.37†

10.38

10.39†

10.40*

10.41†

10.42†

10.43(a)

10.43(b)

10.44*

10.45

Contribution Agreement (Toshiba), dated February 29, 2008, by and 
between  Toshiba  Corporation  and  NRG  Nuclear  Development 
Company LLC.

Incorporated herein by reference to Exhibit 10.2 to the 
Registrant's quarterly report on Form 10-Q filed on May 
1, 2008.

Multi-Unit  Agreement,  dated  February 29,  2008,  by  and  among 
Toshiba Corporation, NRG Nuclear Development Company LLC and 
NRG Energy, Inc.

Incorporated herein by reference to Exhibit 10.3 to the 
Registrant's quarterly report on Form 10-Q filed on May 
1, 2008.

Amended and Restated Operating Agreement of Nuclear Innovation 
North America LLC, dated May 1, 2008.

LLC  Membership  Interest  Purchase  Agreement  between  Reliant 
Energy, Inc. and NRG Retail LLC, dated as of February 28, 2009.

Project Agreement, Settlement Agreement and Mutual Release, dated 
March 1, 2010, by and among by and among Nuclear Innovation North 
America LLC, the City of San Antonio acting by and through the City 
Public Service Board of San Antonio, a Texas municipal utility, NINA 
Texas 3 LLC and NINA Texas 4 LLC, and solely for purposes of certain 
sections of the Settlement Agreement, by NRG Energy, Inc and NRG 
South Texas LP.

Incorporated herein by reference to Exhibit 10.4 to the 
Registrant's quarterly report on Form 10-Q filed on May 
1, 2008.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  quarterly  report  on  Form 10-Q  filed  on 
April 30, 2009.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  current  report  on  Form  8-K  filed  on 
March 2, 2010.

STP 3 & 4 Owners Agreement, dated March 1, 2010, by and among 
Nuclear  Innovation  North America  LLC,  the  City  of  San Antonio, 
NINA Texas 3 LLC and NINA Texas 4 LLC.

Incorporated herein by reference to Exhibit 10.2 to the 
Registrant's  current  report  on  Form  8-K  filed  on 
March 2, 2010.

Amended  and  Restated  Executive  Change-in-Control  and  General 
Severance Plan.

Filed herewith.

Investment and Option Agreement by and among NINA Investments 
Holdings LLC, Nuclear Innovation North America LLC and TEPCO 
Nuclear Energy America LLC, dated as of May 10, 2010.

Incorporated herein by reference to Exhibit 10.3 to the 
Registrant's  quarterly  report  on  Form  10-Q  filed  on 
August 2, 2010.

Parent Company Agreement by and among NRG Energy, Inc., Nuclear 
Innovation North America LLC, The Tokyo Electric Power Company 
and TEPCO Nuclear Energy America LLC, dated as of May 10, 2010.

Incorporated herein by reference to Exhibit 10.4 to the 
Registrant's  quarterly  report  on  Form  10-Q  filed  on 
August 2, 2010.

Letter of Credit and Reimbursement Agreement, dated as of June 30, 
2010, by and among NRG LC Facility Company LLC, NRG Energy, 
Inc. and Citibank, N.A.

Incorporated herein by reference to Exhibit 10.2(a) the 
Registrant's current report on Form 8-K filed on July 1, 
2010.

Letter of Credit and Reimbursement Agreement, dated as of June 30, 
2010, by and among NRG LC Facility Company LLC, NRG Energy, 
Inc. and Deutsche Bank AG, New York Bank.

Incorporated herein by reference to Exhibit 10.2(b) to 
the Registrant's current report on Form 8-K filed on July 
1, 2010.

The NRG Energy, Inc. Amended and Restated Long-Term Incentive 
Plan.

Amended and Restated Credit Agreement, dated July 1, 2011, by and 
among  NRG  Energy,  Inc.,  the  lenders  party  thereto,  the  joint  lead 
bookrunners  and  joint  lead  arrangers  party  thereto,  Citicorp  North 
America,  Inc.,  Morgan  Stanley  Senior  Funding,  Inc.  and  the 
documentation agents party thereto.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's current report on Form 8-K filed on April 
28, 2017.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's current report on Form 8-K filed on July 5, 
2011.

10.46*

Form of Market Stock Unit Grant Agreement.

10.47

Registration  Rights Agreement,  dated  September  24,  2012,  among 
NRG Energy, Inc., the guarantors named therein and Deutsche Bank 
Securities Inc., Merrill, Lynch, Pierce, Fenner & Smith Incorporated, 
Barclays Capital Inc., Citigroup Global Markets Inc., Credit Suisse 
Securities (USA) LLC, Goldman, Sachs & Co., J.P. Morgan Securities 
LLC, Morgan Stanley & Co. LLC and RBS Securities Inc., as initial 
purchasers.

10.48*

NRG 2010 Stock Plan for GenOn Employees.

10.49

10.50

Revolving Credit Agreement among GenOn Energy, Inc., as Borrower, 
GenOn Americas, Inc., as Borrower, the several lenders from time to 
time parties thereto, and NRG Energy, Inc., as Administrative Agent, 
dated as of December 14, 2012.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  current  report  on  Form 8-K/A  filed  on 
September 12, 2011.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  current  report  on  Form 8-K  filed  on 
September 24, 2012.

Incorporated herein by reference to Exhibit 10.49 to the 
Registrant’s  annual  report  on  Form  10-K  filed  on 
February 27, 2013.

Incorporated herein by reference to Exhibit 10.50 to the 
Registrant’s  annual  report  on  Form  10-K  filed  on 
February 27, 2013.

First Amendment Agreement,  dated  as  of  February  6,  2013,  to  the 
Amended and Restated Credit Agreement and the Second Amended 
and Restated Collateral Trust Agreement.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant’s quarterly report on Form 10-Q filed on May 
7, 2013.

236

237

 
 
 
 
 
 
10.51

10.52*

10.53*

Second Amendment Agreement,  dated  as  of  June  4,  2013,  to  the 
Amended and Restated Credit Agreement, the Second Amended and 
Restated Collateral Trust Agreement and the Amended and Restated 
Guarantee and Collateral Agreement.

NRG  Energy,  Inc.  Long-Term  Incentive  Plan  Market  Stock  Unit 
Agreement.

NRG Energy, Inc. 2010 Stock Plan For GenOn Employees Market 
Stock Unit Agreement

10.54*

Amended and Restated Employee Stock Purchase Plan.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant’s current report on Form 8-K filed on June 
10, 2013.

Incorporated herein by reference to Exhibit 10.53 to the 
Registrant's  annual  report  on  Form  10-K  filed  on 
February 28, 2014.

Incorporated herein by reference to Exhibit 10.54 to the 
Registrant's  annual  report  on  Form  10-K  filed  on 
February 28, 2014.

Incorporated herein by reference to Exhibit 10.2 to the 
Registrant's current report on Form 8-K filed on April 
28, 2017.

10.55

10.56

10.57

10.58

10.59

10.60

10.61

10.62

10.63(a)

10.63(b)

10.64(a)

10.64(b)

10.65

10.66

Amendment Agreement,  dated  as  of  December  23,  2014,  by  and 
between  NRG  Energy,  Inc.  and  Credit  Suisse  First  Boston  Capital 
LLC.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  current  report  on  Form  8-K  filed  on 
December 30, 2014.

Employment Agreement, dated December 21, 2015, by and between 
NRG Energy, Inc. and Mauricio Gutierrez.

Amendment and Restatement Agreement, dated as of June 30, 2016, 
to the Amended and Restated Credit Agreement, the Second Amended 
and  Restated  Collateral  Trust  Agreement  and  the  Amended  and 
Restated Guarantee and Collateral Agreement.

Second Amended and Restated Credit Agreement, dated as of June 30, 
2016, by and among NRG Energy, Inc., the lenders party thereto, the 
joint lead arrangers and joint lead bookrunners party thereto, Citicorp 
North America, Inc., Commerzbank AG, New York Branch, Keybank 
Capital Markets Inc. and CIT Bank, N.A.

First Amendment Agreement, dated as of January 24, 2017, dated as 
of January 24, 2017, by and among NRG Energy, Inc., the lenders 
from time to time parties thereto and Citicorp North America, Inc., as 
administrative agent and collateral agent.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  current  report  on  Form  8-K  filed  on 
December 24, 2015.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  quarterly  report  on  Form  10-Q  filed  on 
August 9, 2016.

Incorporated herein by reference to Exhibit 10.2 to the 
Registrant's  quarterly  report  on  Form  10-Q  filed  on 
August 9, 2016.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  Current  Report  on  Form  8-K  filed  on 
January 24, 2017.

Cooperation Agreement, dated as of February 13, 2017, by and among 
NRG Energy, Inc., Elliott Associates, L.P., Elliott International, L.P. 
and Elliott International Capital Advisors Inc.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  Current  Report  on  Form  8-K  filed  on 
February 13, 2017.

Cooperation Agreement, dated as of February 13, 2017, by and among 
NRG Energy, Inc., Bluescape Energy Partners LLC and BEP Special 
Situations 2 LLC.

Incorporated herein by reference to Exhibit 10.2 to the 
Registrant's  Current  Report  on  Form  8-K  filed  on 
February 13, 2017.

Consent Agreement, dated as of May 22, 2017, by and among GenOn 
Energy, Inc., NRG Energy, Inc. and the holders of Notes signatory 
thereto.

Restructuring Support and Lock-Up Agreement, dated as of June 12, 
2017,  by  and  among  GenOn  Energy,  Inc.,  GenOn  Americas 
Generation, LLC, the subsidiaries signatory thereto, NRG Energy, Inc. 
and the noteholders signatory thereto.
First Amendment, dated as of October 2, 2017, to the Restructuring 
Support and Lock-Up Agreement, dated as of June 12, 2017, by and 
among GenOn Energy, Inc., GenOn Americas Generation, LLC, NRG 
Energy, Inc. and the consenting noteholders party thereto.
Backstop Commitment Letter, dated as of June 12, 2017, by and among 
GenOn  Energy,  Inc.,  GenOn  Americas  Generation,  LLC,  the 
subsidiaries signatory thereto and the noteholders signatory thereto.

Incorporated  herein  by  reference  to  Exhibit  10.1  to 
GenOn Energy, Inc. and GenOn Americas Generation, 
LLC's Current Report on Form 8-K filed on May 23, 
2017.
Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's Current Report on Form 8-K filed on June 
14, 2017.

Incorporated herein by reference to Exhibit 10.2 to the 
Registrant's  Current  Report  on  Form  8-K  filed  on 
October 6, 2017.

Incorporated herein by reference to Exhibit 10.2 to the 
Registrant's Current Report on Form 8-K filed on June 
14, 2017.

Amended  and  Restated  Backstop  Commitment  Letter,  dated  as  of 
October 2, 2017, by and among GenOn Energy, Inc., GenOn Americas 
Generation, LLC, the guarantors party thereto and backstop parties 
thereto.
Backstop Fee Letter, dated as of June 12, 2017, by and among GenOn 
Energy,  Inc.,  GenOn  Americas  Generation,  LLC,  the  subsidiaries 
signatory thereto and the noteholders signatory thereto.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  Current  Report  on  Form  8-K  filed  on 
October 6, 2017.

Incorporated herein by reference to Exhibit 10.3 to the 
Registrant's Current Report on Form 8-K filed on June 
14, 2017.

Consent Agreement, by and among GenOn, GAG and the Consenting 
Holders, dated as of October 30, 2017.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  Current  Report  on  Form  8-K  filed  on 
October 31, 2017.

10.67

10.68

10.69

10.70

10.71

10.72

10.73*

10.74*

10.75†

12.1

12.2

21.1

23.1

31.1

31.2

31.3

32

Settlement Agreement, dated as of December 14, 2017, by and between 
NRG Energy, Inc. on behalf of itself and the NRG Parties, GenOn 
Energy, Inc. on behalf of itself and the Debtors.

Incorporated herein by reference to Exhibit 10.1 to the 
Registrant's  Current  Report  on  Form  8-K  filed  on 
December 18, 2017.

Transition Services Agreement, dated as of December 14, 2017, by 
and between GenOn Energy, Inc. and NRG Energy, Inc.

Cooperation Agreement,  dated  as  of  December  14,  2017,  by  and 
between GenOn Energy, Inc. and NRG Energy, Inc.

Pension Indemnity Agreement, dated as of December 14, 2017, by and 
between NRG Energy, Inc. and GenOn Energy, Inc.

Employee Matters Agreement, dated as of December 14, 2017, by and 
between NRG Energy, Inc. and GenOn Energy, Inc.

Incorporated herein by reference to Exhibit 10.2 to the 
Registrant's  Current  Report  on  Form  8-K  filed  on 
December 18, 2017.

Incorporated herein by reference to Exhibit 10.3 to the 
Registrant's  Current  Report  on  Form  8-K  filed  on 
December 18, 2017.

Incorporated herein by reference to Exhibit 10.4 to the 
Registrant's  Current  Report  on  Form  8-K  filed  on 
December 18, 2017.

Incorporated herein by reference to Exhibit 10.5 to the 
Registrant's  Current  Report  on  Form  8-K  filed  on 
December 18, 2017.

Tax Matters Agreement, initially dated as of December 14, 2017, by 
and  between  NRG  Energy,  Inc.  and  GenOn  Energy,  Inc.  and  by 
Reorganized GenOn upon the Effective Date.

Incorporated herein by reference to Exhibit 10.5 to the 
Registrant's  Current  Report  on  Form  8-K  filed  on 
December 18, 2017.

Form  of  NRG  Energy,  Inc.  Long-Term  Incentive  Plan  Relative 
Performance Stock Unit Agreement for Officers. 

Filed herewith.

Form  of  NRG  Energy,  Inc.  Long-Term  Incentive  Plan  Relative 
Performance Stock Unit Agreement for Senior Vice Presidents.

Filed herewith.

Consent and Indemnity Agreement, dated as of February 6, 2018, by 
and among NRG Energy, Inc., NRG Repowering Holdings LLC, NRG 
Yield, Inc., and GIP III Zephyr Acquisition Partners, L.P., and NRG 
Yield Operating LLC (solely with respect to Sections E.5, E.6 and G.
12).

Incorporated  herein  by  reference  to  Exhibit  10.34  to 
NRG Yield, Inc.'s Annual Report on Form 10-K filed on 
March 1, 2018.

NRG Energy, Inc. Computation of Ratio of Earnings to Fixed Charges.

Filed herewith.

NRG Energy, Inc. Computation of Ratio of Earnings to Fixed Charges 
and Preferred Stock Dividend Requirements.

Filed herewith.

Subsidiaries of NRG Energy, Inc.

Consent of KPMG LLP.

Rule 13a-14(a)/15d-14(a) certification of Mauricio Gutierrez.

Rule 13a-14(a)/15d-14(a) certification of Kirkland B. Andrews.

Rule 13a-14(a)/15d-14(a) certification of David Callen.

Filed herewith.

Filed herewith.

Filed herewith.

Filed herewith.

Filed herewith.

Section 1350 Certification.

Furnished herewith.

101 INS

XBRL Instance Document.

101 SCH

XBRL Taxonomy Extension Schema.

101 CAL

XBRL Taxonomy Extension Calculation Linkbase.

101 DEF

XBRL Taxonomy Extension Definition Linkbase.

101 LAB

XBRL Taxonomy Extension Label Linkbase.

101 PRE

XBRL Taxonomy Extension Presentation Linkbase.

Filed herewith.

Filed herewith.

Filed herewith.

Filed herewith.

Filed herewith.

Filed herewith.

*

†

^

Exhibit relates to compensation arrangements.

Portions of this exhibit have been redacted and are subject to a confidential treatment request filed with the Secretary of the Securities 
and Exchange Commission pursuant to Rule 24b-2 under the Securities Exchange Act of 1934, as amended.

This filing excludes schedules pursuant to Item 601(b)(2) of Regulation S-K, which the registrant agrees to furnish supplementary to 
the Securities and Exchange Commission upon request by the Commission.

Item 16. Form 10-K Summary

None.

238

239

 
 
 
 
 
 
SIGNATURES

POWER OF ATTORNEY

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused 

this report to be signed on its behalf by the undersigned thereunto duly authorized.

NRG ENERGY, INC.
(Registrant)

By:

/s/ MAURICIO GUTIERREZ

Mauricio Gutierrez
Chief Executive Officer

Date: March 1, 2018 

Each person whose signature appears below constitutes and appoints David R. Hill and Brian E. Curci, each or any of them, 
such person's true and lawful attorney-in-fact and agent with full power of substitution and resubstitution for such person and in 
such person's name, place and stead, in any and all capacities, to sign any and all amendments to this report on Form 10-K, and 
to  file  the  same  with  all  exhibits  thereto,  and  other  documents  in  connection  therewith,  with  the  Securities  and  Exchange 
Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each 
and every act and thing necessary or desirable to be done in and about the premises, as fully to all intents and purposes as such 
person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them or his or their substitute or 
substitutes, may lawfully do or cause to be done by virtue hereof.

In accordance with the Exchange Act, this report has been signed by the following persons on behalf of the registrant in the 

capacities indicated on March 1, 2018.

Signature
/s/ MAURICIO GUTIERREZ 
Mauricio Gutierrez
/s/ KIRKLAND B. ANDREWS 
Kirkland B. Andrews
/s/ DAVID CALLEN
David Callen
/s/ LAWRENCE S. COBEN  
Lawrence S. Coben
/s/ E. SPENCER ABRAHAM
E. Spencer Abraham
/s/ KIRBYJON H. CALDWELL
Kirbyjon H. Caldwell
/s/ TERRY G. DALLAS
Terry G. Dallas
/s/ WILLIAM E. HANTKE  
William E. Hantke
/s/ PAUL W. HOBBY  
Paul W. Hobby
/s/ ANNE C. SCHAUMBURG  
Anne C. Schaumburg
/s/ EVAN J. SILVERSTEIN
Evan J. Silverstein
/s/ BARRY T. SMITHERMAN
Barry T. Smitherman
/s/ THOMAS H. WEIDEMEYER  
Thomas H. Weidemeyer
/s/ C. JOHN WILDER
C. John Wilder
/s/ WALTER R. YOUNG
Walter R. Young

Title
President, Chief Executive Officer and
Director (Principal Executive Officer)
Chief Financial Officer
(Principal Financial Officer)
Chief Accounting Officer
(Principal Accounting Officer)

Date

March 1, 2018

March 1, 2018

March 1, 2018

Chairman of the Board

March 1, 2018

Director

Director

Director

Director

Director

Director

Director

Director

Director

Director

Director

March 1, 2018

March 1, 2018

March 1, 2018

March 1, 2018

March 1, 2018

March 1, 2018

March 1, 2018

March 1, 2018

March 1, 2018

March 1, 2018

March 1, 2018

240

241

 
 
 
 
 
 
 
 
 
 
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NRG Energy 

804 Carnegie Center  
Princeton, NJ 
08540-6213

t: 609.524.4500 
f: 609.524.4501

nrg.com

1201 Fannin Street 
Houston, TX 
77002-6929

t: 713.537.3000

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