Quarterlytics / Industrials / Industrial - Pollution & Treatment Controls / Energy Recovery, Inc.

Energy Recovery, Inc.

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Industry Industrial - Pollution & Treatment Controls
Employees 254
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FY2017 Annual Report · Energy Recovery, Inc.
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2017 Annual Report

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Dear Shareholders:

We are pleased to report 2017 was yet another record year 
for Energy Recovery, one which built upon previous success. 
We  demonstrated  both  execution  and  growth  in  our  core 
Water business as well as the expansion of applications of our 
revolutionary PX® Pressure Exchanger® technology within Oil 
& Gas, specifically with the announcement of the MTeq™ mud 
pumping system in May. In 2017, we produced our strongest 
ever top-line performance with $63.2 million in revenue. In 
addition, through the team’s focus on maximizing manufacturing 
efficiencies and value to the customer, the Company achieved 
new highs in both product gross margin and total gross margin1. 
Furthermore, the Company delivered $12.4 million in Net Income 
or 22 cents per diluted share.

The recent CEO transition was swift and seamless, and the 
company’s long-term strategy is largely unchanged. Management 
remains committed to delivering results to our Shareholders; 
to generating positive earnings per share as we did in 2017 as 
well as executing against strategic growth initiatives. We will 
continue to build upon our global leadership position in our core 
Water business while also focusing on new applications of our 
PX technology to include the commercialization of VorTeq™, 
the further development of MTeq, and the broader continuous 
innovation within Oil & Gas and beyond. 

Driving Growth in Our Core Water Business

The  exceptional  quality  and  innovative  design  of  our  PX 
technology, coupled with the dedicated leadership and singular 
drive  of  our  Water  team  forms  the  foundation  of  Energy 
Recovery’s  market  leadership  in  global  desalination  energy 
recovery solutions. In 2017, we captured 100 percent of Mega 
Project2  awards,  a  clear  reflection  of  the  health  of  our  core 
Water business and the continuation of the PX technology as 
the industry energy benchmark for excellence. 

Looking forward, we see strong demand for our suite of Water 
products throughout 2018 and have already announced over 
$20  million  in  awards  this  year,  including  several  in  Saudi 
Arabia which remains a key indicator of the strength of the 
global desalination market at large. Despite our record results in 
2017, we are not satisfied with the status quo and instead seek 
to reinvest in our Water business to drive growth. Our Water 
team will aggressively pursue opportunities to maximize value 

through innovation of existing solutions, development of new 
product offerings, increased customer access, and expansion 
of partnerships with other technology leaders. 

Energy Recovery was founded as a Water business and it has 
grown over the past several decades to become a global leader 
in desalination with an installed base of over 18,000 devices 
across all seven continents, a global sales force, and a state of 
the art manufacturing facility. Water currently is and will remain 
a key component of our Company’s future success. We will 
continue to innovate, broaden and strengthen our customer base, 
and maximize growth opportunities across this business line. 

Commercialization of VorTeq a Top Priority

Throughout 2018, our near-term strategic objective is clear: 
ensure our Oil & Gas team is laser-focused on progress toward 
the successful commercialization of VorTeq. Execution against 
this objective is in the best interest of our licensing partners, 
our Company and ultimately, our Shareholders. 

Following  analysis  of  data  from  private  in-house  and  field 
testing, we worked closely with key industry partners to execute 
a comprehensive redesign of the VorTeq system, which was 
completed in the second half of 2017. In the fourth quarter of 
2017, the company deployed the second generation VorTeq 
system and executed a battery of tests at rates of flow and 
pressures  emblematic  of  real-world  hydraulic  fracturing 
conditions. We are currently sourcing harder grade materials 
for  the  PX  components  contained  in  the  VorTeq  system  as 
well  as  exploring  system  design  enhancements  critical  to 
commercialization,  and  upon  completion  expect  to  resume 
testing related to the achievement of Milestone 1. 

We are confident in the talent of our engineering and operations 
teams  and  believe  firmly  the  VorTeq  is  a  viable,  disruptive 
and  transformative  technology  which  we  will  successfully 
commercialize in the future.

MTeq Development

While much of our Oil & Gas team’s near-term effort will be 
focused on VorTeq, we are committed to the further development 
of  the  MTeq  system,  our  PX  solution  targeted  at  reducing 

1.  “Total gross margin” is a non-GAAP financial measure.  Please refer to the discussion under headings “Use of Non-GAAP Financial Measures” and “Reconciliations of Non-GAAP Financial Measures.”
2.  Mega Projects represent those plants with capacity greater than 50,000 cubic meters per day.

the cost and footprint of mud pumping in upstream oil and  
gas operations.

In May 2017 we announced the launch of our next PX derivative, 
the MTeq system. During the remainder of the year, we built our 
first prototype unit and began extensive yard testing, yielding 
promising results. In short, the prototype produced repeatedly 
successful exchanges of pressure energy from clean fluid to 
17-pound drilling mud, at rates and pressures typical of modern 
shale drilling operations. We are currently implementing design 
enhancements to the MTeq system with the expectation of 
securing a location for further in-field testing during 2018.

Overall, 2017 was a great year for Energy Recovery, and we are 
even more excited about the opportunities which lie ahead. 
Record results, a strong balance sheet, and continued strength 
in our Water business provide a launching platform for growth, 
not only with expansion into new applications but also with 
reinvestment  in  our  core  business.  In  the  coming  year,  we 
will focus on executing against those objectives to maximize 
Shareholder value. The long-term growth opportunities for our 
Company are vast, and we believe that our world-class team 
and ubiquitous PX technology positions us well to take full 
advantage of these exciting opportunities over the coming years. 

On behalf of Energy Recovery’s Board of Directors and our entire 
team, thank you for your continued investment in our company. 

Sincerely,

Chris Gannon
President and CEO

Hans Peter Michelet
Chairman of the  
Board of Directors

USE OF NON-GAAP FINANCIAL MEASURES 

This  letter  includes  certain  non-GAAP  financial  measures,  including  total  gross  margin.    Generally,  a  non-GAAP  financial 
measure is a numerical measure of a company’s performance, financial position, or cash flows that either exclude or include 
amounts  that  are  not  normally  excluded  or  included  in  the  most  directly  comparable  measure  calculated  and  presented  in 
accordance with generally accepted accounting principles in the United States of America, or GAAP.  These non-GAAP financial 
measures do not reflect a comprehensive system of accounting, differ from GAAP measures with the same captions, and may 
differ from non-GAAP financial measures with the same or similar captions that are used by other companies.  As such, these 
non-GAAP measures should be considered as a supplement to, and not as a substitute for, or superior to, financial measures 
calculated in accordance with GAAP.  We use these non-GAAP financial measures to analyze our operating performance and 
future prospects, develop internal budgets and financial goals, and to facilitate period-to-period comparisons.  We believe these 
non-GAAP financial measures reflect an additional way of viewing aspects of our operations that, when viewed with our GAAP 
results, provide a more complete understanding of factors and trends affecting our business. 

ENERGY RECOVERY, INC. 
RECONCILIATION OF NON-GAAP TO GAAP FINANCIAL MEASURES 

(In thousands, except per share data) 
(Unaudited) 

Product revenue 
License and development revenue 

Total revenue 

Product gross profit 

License and development revenue 

Total gross profit (non-GAAP) 

Product gross margin 

Total gross margin (non-GAAP) 

Net income 

Reversal of non-recurring expense (benefit)  

Adjusted net income (non-GAAP) 

Income per share: 

Diluted 

Diluted (non-GAAP) 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

Years Ended 
December 31, 

2017 

2016 

58,156 
5,000 
63,156 

39,095 
5,000 
44,095 

  $ 

  $ 

  $ 

  $ 

49,715 
5,000 
54,715 

31,866 
5,000 
36,866 

67.2% 
69.8% 

64.1% 

67.4% 

  $ 

12,350 
(8,394)   
3,956 

 $ 

0.22 
0.07 

  $ 
  $ 

1,034 
1,008 
2,042 

0.02 
0.04 

Number of diluted shares used in per share calculations 

55,612 

55,451 

 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
   
 
 
   
 
 
   
 
   
 
 
   
 
 
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UNITED STATES  
SECURITIES AND EXCHANGE COMMISSION 
Washington D.C. 20549 

Form 10-K 

(Mark One) 

 

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 

For the fiscal year ended December 31, 2017 

or 

☐ 

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 

For the transition period from        to 

Commission File Number: 001-34112 

Energy Recovery, Inc. 

(Exact Name of Registrant as Specified in Its Charter) 

(State or Other Jurisdiction of Incorporation or Organization) 

(I.R.S. Employer Identification No.) 

Delaware 

01-0616867 

1717 Doolittle Drive, San Leandro, CA 94577 
(Address of Principal Executive Offices)  

Registrant’s telephone number, including area code: (510) 483-7370  

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934: 

Title of Each Class 

Common stock, $0.001 par value 

Name of Exchange on Which Registered 

The NASDAQ Stock Market LLC 

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

Indicate by check mark whether 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 Act.  ☐ Yes   No 

Indicate by check mark whether the registrant: (1) has filed all reports required 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 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, or a smaller reporting 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 ☐ 

Emerging growth company ☐ 

(Do not check if a smaller reporting 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 

The aggregate market value of the voting stock held by non-affiliates amounted to approximately $278.9 million on June 30, 2017. 

The number of shares of the registrant’s common stock outstanding as of February 28, 2018 was 53,985,515 shares. 

DOCUMENTS INCORPORATED BY REFERENCE 

As noted herein, the information called for by Part III is incorporated by reference to specified portions of the registrant’s definitive proxy statement to be filed in conjunction 
with the registrant’s 2018 Annual Meeting of Stockholders, which is expected to be filed not later than 120 days after the registrant’s fiscal year ended December 31, 2017. 

  
  
  
 
  
  
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TABLE OF CONTENTS 

PART I 

Item 1 
Item 1A 
Item 1B 
Item 2 
Item 3 
Item 4 

Item 5 
Item 6 
Item 7 
Item 7A 
Item 8 
Item 9 
Item 9A 
Item 9B 

Item 10 
Item 11 
Item 12 
Item 13 
Item 14 

Business ......................................................................................................................................................................  
Risk Factors ................................................................................................................................................................  
Unresolved Staff Comments .......................................................................................................................................  
Properties ....................................................................................................................................................................  
Legal Proceedings .......................................................................................................................................................  
Mine Safety Disclosures .............................................................................................................................................  

PART II  

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities ..  
Selected Financial Data ..............................................................................................................................................  
Management’s Discussion and Analysis of Financial Condition and Results of Operations ......................................  
Quantitative and Qualitative Disclosures About Market Risk ....................................................................................  
Financial Statements and Supplementary Data ...........................................................................................................  
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure ......................................  
Controls and Procedures .............................................................................................................................................  
Other Information .......................................................................................................................................................  

PART III  

Directors, Executive Officers and Corporate Governance ..........................................................................................  
Executive Compensation ............................................................................................................................................  
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters ....................  
Certain Relationships and Related Transactions and Director Independence .............................................................  
Principal Accounting Fees and Services .....................................................................................................................  

PART IV  

Page 

4 
14 
24 
24 
24 
24 

25 
27 
28 
45 
46 
98 
98 
98 

99 
99 
99 
99 
99 

Exhibits and Financial Statement Schedules ...............................................................................................................   100 
Item 15 
Item 16 
Form 10-K Summary ..................................................................................................................................................   100 
SIGNATURES ...................................................................................................................................................................................   101 

 
 
 
  
  
 
 
 
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FORWARD-LOOKING INFORMATION 

This  Annual  Report  on  Form  10-K  for  the  year  ended  December  31,  2017,  including  “Item  7  –  Management’s 
Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations”  and  certain  information  incorporated  by 
reference, contain forward-looking statements within the “safe harbor” provisions of the Private Securities Litigation Reform 
Act of 1995. Forward-looking statements in this report include, but are not limited to, statements about our expectations, 
objectives, anticipations, plans, hopes, beliefs, intentions, or strategies regarding the future. 

Forward-looking statements represent our current expectations about future events, are based on assumptions, and 
involve risks and uncertainties. If the risks or uncertainties occur or the assumptions prove incorrect, then our results may 
differ materially from those set forth or implied by the forward-looking statements. Our forward-looking statements are not 
guarantees of future performance or events. 

Words such as “expects,” “anticipates,” “aims,” “projects,” “intends,” “plans,” “believes,” “estimates,” “seeks,” 
variations  of  such  words,  and  similar  expressions  are  also  intended  to  identify  such  forward-looking  statements.  These 
forward-looking statements are subject to risks, uncertainties, and assumptions that are difficult to predict; therefore, actual 
results may differ materially and adversely from those expressed in any forward-looking statements. Readers are directed to 
risks and uncertainties identified under “Item 1A – Risk Factors” and elsewhere in this report for factors that may cause 
actual  results  to  be  different  from  those  expressed  in  these  forward-looking  statements.  Except  as  required  by  law,  we 
undertake no obligation to revise or update publicly any forward-looking statements for any reason. 

Forward-looking statements in this report include, without limitation, statements about the following: 

•  our  belief  that  levels  of  gross  profit  margin  are  sustainable  to  the  extent  that  volume  grows,  we  experience  a
favorable  product  mix,  pricing  remains  stable,  and  we  continue  to  realize  cost  savings  through  production
efficiencies and enhanced yields; 

•  our  plan  to  improve  our  existing  energy  recovery  devices  and  to  develop  and  manufacture  new  and  enhanced

versions of these devices; 

•  our belief that our PX® energy recovery devices are the most cost-effective energy recovery devices over time and 

will result in low life-cycle costs; 

•  our belief that our turbocharger devices have long operating lives; 

•  our  objective  of  finding  new  applications  for  our  technology  and  developing  new  products  for  use  outside  of

desalination, including oil & gas applications; 

•  our expectation that our expenses for research and development and sales and marketing may increase as a result 

of diversification into markets outside of desalination; 

•  our expectation that we will continue to rely on sales of our energy recovery devices in the desalination market for
a substantial portion of our revenue and that new desalination markets, including the United States, will provide
revenue opportunities to us; 

•  our ability to meet projected new product development dates, anticipated cost reduction targets, or revenue growth

objectives for new products; 

•  our belief that we can commercialize the VorTeq™ hydraulic fracturing system; 

•  our belief that the VorTeq enables OFS companies to migrate to more efficient pumping technology; 

•  our belief that we will be able to enter into a long-term licensing agreement to bring the MTeq solution to market; 

•  our belief that customers will accept and adopt our new products; 

•  our belief that our current facilities will be adequate for the foreseeable future; 

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•  our expectation that sales outside of the United States will remain a significant portion of our revenue; 

• 

the timing of our receipt of payment for products or services from our customers; 

•  our belief that our existing cash balances and cash generated from our operations will be sufficient to meet our
anticipated liquidity needs for the foreseeable future, with the exception of a decision to enter into an acquisition 
and/or fund investments in our latest technology arising from rapid market adoption that could require us to seek
additional equity or debt financing; 

•  our expectation that, as we expand our international sales, a portion of our revenue could be denominated in foreign

currencies; 

•  our expectations of the impact of the Tax Cuts and Jobs Act of 2017; 

•  our belief that new markets will grow in the water desalination market; 

•  our expectation that we will be able to enforce our intellectual property rights; and 

•  other factors disclosed under Item 1 – Business, Item 1A – Risk Factors, Item 2 – Properties, Item 7 – Management’s 
Discussion and Analysis of Financial Condition and Results of Operation, Item 7A – Quantitative and Qualitative 
Disclosures about Market Risks and elsewhere in this Form 10-K. 

You should not place undue reliance on these forward-looking statements, which reflect management’s opinions only 
as of the date of the filing of this Annual Report on Form 10-K. All forward-looking statements included in this document are 
subject to additional risks and uncertainties further discussed under “Item 1A – Risk Factors” and are based on information 
available to us as of March 8, 2018. We assume no obligation to update any such forward-looking statements. It is important 
to note that our actual results could differ materially from the results set forth or implied by our forward-looking statements. 
The factors that could cause our actual results to differ from those included in such forward-looking statements are set forth 
under the heading “Item 1A – Risk Factors” and our results disclosed from time to time in our reports on Forms 10-Q and 
8-K and our Annual Reports to Stockholders. 

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PART I 

ITEM 1 — BUSINESS 

Overview 

Energy Recovery, Inc. and its wholly-owned subsidiaries (the “Company,” “Energy Recovery,” “our,” “us,” and “we”) 
is an energy solutions provider to industrial fluid flow markets worldwide. Our core competencies are fluid dynamics and 
advanced material science. Our products make industrial processes more operational and capital expenditure efficient. Our 
solutions  convert  wasted  pressure  energy  into  a  reusable  asset  and  preserve  or  eliminate  pumping  technology  in  hostile 
processing environments. Our solutions are marketed and sold in fluid flow markets, such as water desalination, oil & gas, 
and chemical processing, under the trademarks ERI®, PX®, Pressure Exchanger®, PX Pressure Exchanger®, AT™, AquaBold™, 
VorTeq™, MTeq™, IsoBoost®, and IsoGen®. Our solutions are owned, manufactured, and/or developed, in whole or in part, in 
the United States of America (“U.S.”) and the Republic of Ireland (“Ireland”). Energy Recovery was incorporated in Virginia 
in 1992, reincorporated in Delaware in 2001, and became a public company in July 2008. 

Markets 

Our primary industrial fluid flow markets are water and oil & gas. We are a technology leader for energy recovery 
devices (“ERDs”) in the water market with our proprietary Pressure Exchanger (“PX”) and turbocharger technologies. We 
also  manufacture  high-performance  and  high-efficiency  pumps  to  provide  a  packaged  solution  for  our  water  market 
customers. Building on our technology, we have expanded our technology solutions offerings into fluid flow applications in 
the oil & gas market, and are exploring other end markets for which our solutions may be applicable. In the oil & gas market, 
we offer our VorTeq hydraulic fracturing system (“VorTeq”), and our MTeq mud pumping system (“MTeq”), each of which 
utilizes our PX technology, as well as our IsoBoost and IsoGen systems, which utilize our turbocharger technology. 

Water 

Population and economic growth in regions such as the Middle East, Africa, and Asia are driving water demand for 
human, agricultural, and industrial use. Apart from seasonal variations, the supply of fresh water remains fixed and cannot 
keep pace with this growing demand. Desalination of seawater, brackish and wastewater into freshwater offers a solution to 
water needs around the world. In many parts of the world, desalination contributes significantly to the freshwater supply. 
However, highly pressurized fluid flows are generally required in the desalination process to generate fresh water. These 
pressurized  fluid  flows  are  both  a  necessity  and  liability  to  the  water  industry.  High  rates  of  flow  and  high-pressure 
differentials  lead  to  pressure  energy  becoming  a  waste  product  thereby  driving  excessive  energy  usage  and  cost.  Water 
desalination operators seek ways to reduce these costs and improve overall productivity. 

Seawater, brackish, and wastewater reverse osmosis desalination have been our core markets for revenue generation 
to  date.  Because  of  the  geographical  location  of  many  significant  water  desalination  projects,  geopolitical  and  economic 
events can influence the timing of expected projects. We anticipate that markets traditionally not associated with desalination, 
including the U.S., will inevitably develop and provide further revenue growth opportunities. The water market ranges from 
small  desalination  plants  such  as  those  used  in  cruise  ships  and  resorts,  to  mega-project  desalination  plant  deployments 
globally. 

Energy Recovery Devices, PX and turbocharger ERD solutions for desalination application: The costs to desalinate 
and purify water are high, as plants are expensive to build and operate, with energy costs being a major expense driver. Plant 
operators strive to design and build the most cost-efficient plants possible. As a result, plant operators implement technologies 
to reduce the energy required to produce desalinated water while maximizing plant reliability and uptime. 

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High Efficiency Pumps, High-pressure feed and high-pressure circulation pumps:  In addition to ERD solutions, 
the desalination of water requires specialized high pressure feed and circulation pumps. These devices in combination with 
ERDs must efficiently pressurize and circulate feedwater to the membranes to purify water. Plant operators require specialized 
pumps with performance matched to the requirements of the membranes and ERDs. To minimize plant costs these pumps 
must provide high energy efficiency and reliability with low maintenance requirements.  

Greenfield 

The greenfield market typically represents newly constructed seawater reverse osmosis desalination projects. These 
facilities vary in size, scope and geography. Typically, greenfield projects are public in nature and involve a formal tendering 
process. Prior to project award, we work directly with the project bidders and upon award our normal sales process ensues. 
The greenfield market has been the key market for our water business. This market is highly competitive and the tendering 
process pays close attention to the cost to desalinate water (i.e., dollars per cubic meter of water produced).  

Retrofit 

The retrofit market represents existing water facilities that are currently in operation utilizing legacy technologies. 
These facilities and their owners not only encounter issues with low-efficiency legacy technologies, but also encounter capital 
expenditure and “know-how” issues that may prevent them from retrofitting plants. Typical retrofits include improvements 
to  existing  operations  and  equipment  upgrades.  We  leverage  our  best-in-class  solutions  to  unseat  existing  technology  by 
implementing water production efficiency measures to reduce overall power consumed, repairs and maintenance costs and 
avoid costly capital upgrades, as well as increase throughput or enhance revenue. These retrofit opportunities may or may not 
have a formal tendering process. We typically approach the owners and / or end-users of these facilities to present our value-
proposition.  

Service & Aftermarket 

The service & aftermarket market is comprised of existing water facilities that have our solutions installed and/or in 
operation. We provide spare and repaired components, field services and various commissioning activities to our customer 
base. We leverage our water expertise in supporting our existing installed base to ensure that our solutions are being operated 
effectively. Readily available aftermarket products and services are required by our industry partners and customers in order 
maximize plant availability and profits. 

Oil & Gas 

Across  oil  &  gas  markets,  highly  pressurized  fluid  flows  are  required  to  extract  and  process  hydrocarbons.  These 
pressurized  fluid  flows  are  both  a  necessity  and  liability  to  the  oil  &  gas  industry.  High  rates  of  flow,  high  pressure 
differentials and hostile (e.g., corrosive, erosive or abrasive) fluids lead to rapid degradation of expensive pressure pumping 
equipment. In addition, pressure energy becomes a waste product at various stages of oil and gas processing thereby driving 
excessive energy usage and cost. Oil & gas operators seek ways to reduce these costs and improve overall productivity.  

Upstream Sector 

In the upstream sector, high rates of flow, high pressure differentials and hostile (e.g., corrosive, erosive or abrasive) 
fluids  lead  to  rapid  degradation  of  expensive  pressure  pumping  equipment,  as  well  as  costly  repairs  and  maintenance, 
excessive downtime and significant excess capacity requirements. We offer a solution to minimize these costs by pressurizing 
hostile fluids in our proprietary PX technology, thereby only running clean fluids through the pumping equipment.  

VorTeq, a PX solution for hydraulic fracturing applications: Hydraulic fracturing is a well-stimulation technique in 
which  pressurized  liquid  containing  a  highly  abrasive,  proppant-laden  fluid  is  injected  into  a  wellbore.  Oilfield  service 

- 5 - 

 
 
 
 
 
 
 
 
 
 
 
 
(“OFS”) providers utilize high-pressure hydraulic fracturing pumps (commonly referred to as “frac-pumps”) to pressurize 
fracturing fluid (commonly referred to as “frac-fluid”) at treating pressures up to 15,000 pounds per square inch (“psi”). This 
frac-fluid is sent from the frac-pumps through traditional missile manifolds into the wellbore to create cracks in the deep-
rock formations thereby permitting oil and gas extraction. These frac-pumps are routinely destroyed by the abrasive frac-
fluids  used  during  the  hydraulic  fracturing  process  causing  significant  OFS  operator  costs  associated  with  excessive 
downtime, repairs, maintenance, and capital equipment redundancy. OFS operators have long sought ways to ruggedize or 
extend the life of pumps thereby reducing costs. Further, many OFS operators have long sought the means to isolate their 
high-pressure  frac-pumps  from  abrasive  frac-fluid  thereby  enabling  OFS  operators  to  realize  immediate  and  long-term 
savings in the form of reduced downtime, repairs and maintenance costs and capital equipment redundancy. 

MTeq, a PX solution for mud pumping applications: During mud pumping, a drilling fluid (commonly referred to as 
“drilling mud”) is circulated from a mud pit through the wellbore utilizing high-pressure mud pumps, which pressure the 
drilling mud at treating pressures up to 7,500 psi, to remove cuttings, control formation pressures, and lubricate the drill bit. 
Although the mud pumping process removes most of the solids from the drilling mud, debris and sand remain. This drilling 
mud subjects the pumps circulating the fluid to extreme wear, resulting in burdensome repair and maintenance costs. These 
mud pumps are routinely destroyed by the hostile drilling mud used during the mud pumping process causing OFS operators 
significant costs associated with excessive downtime, repairs, maintenance, capital equipment redundancy, safety, and rig 
mobilization. OFS operators have long sought ways to ruggedize or extend the life of these mud pumps thereby reducing 
costs, as well as isolate high-pressure mud pumps to bypass corrosive “mud” from the mud pumping system in drilling rigs, 
an integral piece of the well control system during drilling.  

Midstream and Downstream Sectors 

IsoBoost  &  IsoGen,  turbocharger  solutions,  for  gas  processing  &  pipeline  applications:  Within  the  oil  &  gas 
midstream and downstream sectors, pressure energy becomes a waste product at various stages of oil & gas processing thereby 
driving excessive energy usage and cost. In addition, these midstream and downstream sectors incur very steep expenses as 
a result of the ongoing maintenance and repair of the high-pressure pumps required to run the acid gas removal process. Our 
target markets consist of gas processing plants, pipeline substations and ammonia plants worldwide. 

Solutions 

Energy, repairs, maintenance, and capital costs are major cost drivers in the water and oil & gas markets. We have 

developed the following proprietary technology solutions to address these major cost drivers: 

Water 

In the water market, our energy recovery solutions reduce plant operating costs by capturing and reusing otherwise 
lost  pressure  energy  from  the  reject  stream  of  the  water  desalination  process.  Our  water  ERDs  are  categorized  into  two 
technology groups: PX Pressure Exchangers and turbochargers. Complementing these products are our high-performance, 
high-efficiency pumps.  

QPX and PX Prime, high efficiency ERD solutions for water applications: Our patented PX ERD technology consists 
of  a  ceramic  rotor  operating  on  highly  efficient  hydrodynamic  bearings.  Our  PX  ERDs  enable  water  desalination  plant 
operators  to  recover  wasted  hydraulic  pressure  energy  from  a  high-pressure  fluid  flow  and  transfer  the  energy  to  a  low-
pressure fluid flow. Our PX ERDs perform with up to 98% efficiency and unmatched uptime in the desalination industry, 
and can reduce a desalination plant’s energy costs by up to 60%. 

Turbochargers,  high  efficiency  centrifugal  ERD  solutions  for  water  applications:  Our  hydraulic  turbochargers 
(“Turbochargers”) are designed for low-pressure brackish, high-pressure seawater reverse osmosis systems and various other 
water treatment applications. Our Turbochargers provide high efficiency with state-of-the-art engineering and configuration. 

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Designed for maximum durability, reliability and optimum efficiency, our turbochargers offer substantial savings, and the 
custom-designed hydraulics and 3-dimensional (“3D”) geometry allow for optimum performance.  

Pumps, high efficiency pumps for water applications:  Our high-pressure feed and circulation pumps are designed 
for low and high-pressure reverse osmosis systems. Specifically designed for the reverse osmosis industry, our pumps utilize 
our material science and hydraulic design expertise. Designed for maximum durability, reliability, and optimum efficiency, 
our  pumping  systems  offer  users  savings,  while  the  investment  cast  components  and  optimized  fluid  pathways  ensure 
maximum performance. 

Oil & Gas 

In  the  oil  &  gas  market,  our  technology  solutions  preserve  or  eliminate  pumping  technology  in  hostile  processing 
environments or convert wasted pressure energy into a reusable asset. Our core oil & gas solutions based upon PX technology, 
the VorTeq and MTeq, which isolate high cost pumping equipment from hostile processing fluids. Our centrifugal line of 
solutions based upon turbocharger technology the IsoBoost and IsoGen, recycle otherwise lost pressure energy. 

Upstream Sector 

VorTeq, a PX solution for hydraulic fracturing applications:  The VorTeq technology for use by OFS companies 
isolates and preserves costly frac-pumps by re-routing hostile frac-fluid away from the frac-pumps, and ultimately enables a 
more efficient pumping model. Using VorTeq, the frac-pumps will process only clean fluid, which leads to reduced repairs 
and maintenance costs, reduced capital costs by extending frac-pump life expectancy, and the elimination of redundant capital 
equipment. Furthermore, VorTeq enables the migration to more efficient pumping technology. Specifically, when frac-pumps 
are  no  longer  required  to  process  hostile  frac-fluid,  OFS  companies  are  able  to  utilize  fewer,  larger  and  more  efficient 
centrifugal  pumps,  which  is  not  currently  possible  as  such  pumps  cannot  successfully  process  hostile  frac-fluid.  When 
implemented by OFS companies, this new centrifugal pump model has the potential to revolutionize the equipment (and cost) 
required to produce hydrocarbons through hydraulic fracturing. Our VorTeq is currently in the research and development 
(“R&D”) stage and we are actively working towards commercialization. We completed a substantial re-design of the VorTeq 
during 2017. We are focused on commercializing this technology. 

MTeq, a PX solution for mud pumping applications: Our MTeq technology for use by OFS companies isolate and 
preserves costly mud pumps by re-routing hostile drilling mud away from these critical pumps, and ultimately enables a more 
efficient  pumping  model.  These  mud  pumps  will  then  process  only  clean  fluid,  which  leads  to  reduced  repairs  and 
maintenance costs and reduced capital costs by extending pump life expectancy and eliminating redundant capital equipment. 
Furthermore, by processing only clean fluid, our MTeq enables the migration by the OFS companies to increasingly efficient 
pumping technology which cannot otherwise handle the hostile processing fluid. This more efficient pumping model further 
reduces capital expenditures and offers increased safety and reliability, as well as lower mobilization and logistics complexity 
and associated cost. Our MTeq is currently in the R&D stage and we are actively working towards commercialization. We 
designed the MTeq during late 2016 and early 2017 and completed building the first prototype in December 2017. 

Midstream and Downstream Sectors 

IsoBoost & IsoGen, turbocharger solutions, for gas processing & pipeline applications: Within the gas processing 
and pipeline pressure down cycle, the IsoBoost and IsoGen technology enables the recovery of pressure energy in the fluid 
flow either through the exchange of pressure within the application or by converting it to electricity. Our technology enables 
gas processing plant and pipeline owners and operators to achieve immediate and long-term energy savings with little or no 
operational disruption. Our IsoBoost is comprised of hydraulic turbochargers and related controls and automation systems. 
The IsoBoost solution enables oil & gas operators to capture and use wasted hydraulic pressure energy within the acid gas 
removal process, acting like a pump that is powered by hydraulic pressure that would otherwise be discarded through a control 
valve. Our IsoGen is comprised of hydraulic turbines, generators, and related controls and automation systems. The IsoGen 

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enables oil & gas operators to generate electricity from the hydraulic energy in high-pressure fluid flows, either within the 
acid gas removal process in gas processing or at pipeline choke stations. 

Customers 

Water 

We sell our ERD solutions to major international engineering, procurement, and construction (“EPC”) firms that can 
design,  build,  own  and  operate  large-scale  desalination  plants;  original  equipment  manufacturers  (“OEM”)  which  are 
companies that supply equipment and packaged solutions for small- to medium-sized desalination plants; national, state and 
local municipalities worldwide; and plant owners who can utilize our technology to upgrade or keep their plant running, or 
retrofit their existing plant equipment with various efficiency measures to optimize operations by reducing overall power 
consumed and reduce other operating costs in the desalination process. 

Large Engineering, Procurement and Construction Firms 

A  significant  portion  of  our  revenue  has  historically  come  from  sales  of  our  ERD  solutions  to  large  EPC  firms 
worldwide which have the required desalination expertise to engineer, undertake procurement for, construct, and sometimes 
own and operate, large desalination plants or mega-projects (“MPD”). We work with these firms to specify our ERD solutions 
for their plants. The time between project tender and shipment can range from sixteen to thirty-six months, or more. Each 
MPD project typically represents revenue opportunities ranging from $1 million to $6 million, and sometimes more. 

Original Equipment Manufacturers 

Our packaged solutions to OEMs include PXs, turbochargers, high-pressure pumps, and circulation “booster” pumps. 
Our sale of solutions and services to OEM suppliers are for integration and use in small- to medium-sized desalination plants 
located in small municipalities, hotels and resorts, power plants, cruise ships, farm operations, and other desalination facilities. 
In addition, these OEMs purchase our solutions for “quick water” or emergency water solutions. The time from project tender 
and shipment can range from one to 12 months. OEM projects typically represent revenue opportunities of up to $1 million.  

End-users and Service Providers 

Our existing and expanding installed base of ERD and pump products in water plants has created a growing customer 
base comprised of plant operators and service providers. These customers purchase spare parts, replacement parts, and service 
contracts, as well as utilize our field service managers to perform maintenance and repairs. Owners and operators of older 
plants without effective ERDs and newer plants with ERDs manufactured by our competitors purchase our equipment to 
retrofit plants to realize operational expense reductions or expansions in plant capacity. In addition, these customers may 
retrofit their plants to harvest operational efficiencies through our Energy Service Agreements (“ESA”). 

Oil & Gas 

We license, lease or sell our oil and gas products to OFS companies, international oil companies (“IOC”), national oil 

companies (“NOC”), exploration and production companies (“E&P”), OEMs and EPC firms. 

Oilfield Service Companies 

OFS  companies  provide  the  infrastructure,  equipment,  intellectual  property,  and  services  needed  by  the  oil  &  gas 
industry to explore for, extract, and transport crude oil and natural gas. OFS hydraulic fracturing and mud pumping operators 
face significant pressure to reduce costs as oil & gas companies curtail capital expenditures and seek operational efficiencies 
in response to lower commodity prices.  

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Our VorTeq enables OFS hydraulic fracturing operators to isolate their frac-pumps from frac-fluid thereby reducing 
operating and capital costs. In 2014, we entered into a strategic partnership with Liberty Oil Field Services (“Liberty”) to 
pilot and conduct field trials with the VorTeq. Through this agreement, Liberty has the rights to lease up to twenty VorTeq 
missiles for a period of up to five years following commercialization. In 2015, we entered into a 15-year license agreement 
with Schlumberger Technology Corporation (the “VorTeq Licensee”) for the exclusive, worldwide right to use the VorTeq 
for hydraulic fracturing onshore operations. The license agreement provides a carve out for Liberty’s contractual rights to 
utilize the VorTeq. We are currently working with the VorTeq Licensee and Liberty to commercialize the VorTeq technology.  

Our  MTeq  enables  OFS  mud  pumping  operators  drilling  oil  and  gas  wells  to  isolate  their  mud  pumps  from  harsh 
drilling mud thereby reducing operating and capital costs. In the second quarter of 2017, we entered into a strategic early-
stage  testing  agreement  with  Sidewinder  Drilling  to  conduct  testing  of  the  MTeq  solution  at  their  yard  facility.  As  with 
VorTeq, following product validation, we intend to enter into a long-term licensing agreement to bring the MTeq solution to 
market. These long-term licensing partners could be OFS companies that specialize in drilling wells or OEMs that supply or 
lease equipment to market participants. We are currently in the process of evaluating potential partners for the MTeq solution. 

Gas Processing & Pipeline Operators 

We have contracted and delivered oil & gas solutions to customers in North America, Asia, and the Middle East for 
use in gas processing applications. Our target market consists of gas processing plants, pipeline substations and ammonia 
plants worldwide. Our IsoGen solution has been installed in a major gas processing plant in the Middle East. Our IsoBoost 
solution has been purchased for integration into a major gas processing plant to be constructed in the Middle East. 

In 2016, we received our first major purchase order for multiple units of our IsoBoost solution for integration into a 
major gas processing plant under construction in the Middle East. We expect to complete and ship the units to the Middle 
East in the first half of 2018. In April 2017, we entered into a 10-year licensing agreement with Alderley FZE for our IsoBoost 
&  IsoGen  technologies  in gas  processing  and  pipeline  applications within  the  countries  of  the  Gulf Cooperation  Council 
(“GCC”), as well as Iraq and Iran to the extent international sanctions and laws permit. 

Competition 

Water  

The market for ERDs and pumps in the water treatment market is competitive. As the demand for fresh water increases 

and the market expands, we expect competition to persist and intensify. 

We have three main competitors for our ERDs: Flowserve Corporation (“Flowserve”), Fluid Equipment Development 
Company (“FEDCO”), and Danfoss Group (“Danfoss”). Although these companies may offer competing solutions at lower 
initial prices, our solutions offer a competitive advantage because we believe that they provide the lowest life-cycle cost and 
are therefore the most cost-effective ERDs for the reverse osmosis desalination industry over time.  

In the market for large desalination projects, our PX ERDs compete primarily with Flowserve’s DWEER product. We 
believe that our PX ERDs have a competitive advantage over DWEER devices because our devices are made with highly 
durable  and  corrosion-resistant  ceramic  parts  that  are  designed  for  a  life  of  more  than  25  years,  are  warranted  for  high 
efficiencies, cause minimal unplanned downtime, and offer lower lifecycle costs. Additionally, the PX ERDs offer optimum 
scalability with a quick startup as well as minimal maintenance. We believe that our large AT turbocharger solutions also 
have a competitive advantage over Flowserve’s Pelton Turbine product, particularly in countries where energy costs are low 
and upfront capital costs are a critical factor in purchase decisions, because our AT turbocharger solutions have higher net 
transfer efficiencies, lower upfront capital costs, a simple design with one rotating assembly, a small physical footprint, and 
a long operating life that leads to low total lifecycle costs. 

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In the market for small-to-medium-sized desalination plants, our solutions compete with FEDCO’s turbochargers and 
Danfoss’s  ERDs.  We  believe  that  our  PX  ERDs  have  a  competitive  advantage  over  these  solutions  because  our  devices 
provide up to 98% energy efficiency, have lower lifecycle maintenance costs, and are made of highly durable and corrosion-
resistant ceramic parts. We also believe that our turbochargers compete favorably with FEDCO’s turbochargers on the basis 
of efficiency and price and because our turbochargers have design advantages that enhance efficiency, operational flexibility, 
and serviceability. 

In  the  market  for  high-pressure  pumps,  our  solutions  compete  with  pumps  manufactured  by  Clyde  Union  Ltd.; 
FEDCO; Flowserve; KSB Aktiengesellschaft; Torishima Pump Mfg. Co., Ltd.; Sulzer Pumps, Ltd.; and other companies. 
We believe that our pump solutions are competitive with these solutions because our pumps are developed specifically for 
reverse osmosis desalination, are highly efficient, and feature product-lubricated bearings. 

Oil & Gas 

The landscape for our technology within the oil & gas market is competitive as the industry is continuously seeking 
ways to reduce costs and extend the life of assets used in the production or transportation of hydrocarbons. As demand for 
our products increase, we expect competition to intensify. 

We  believe  our  VorTeq  technology  represents  a  competitive  advantage  over  existing  missile  manifold  technology 
because our solution re-routes abrasive proppant away from high-pressure pumps, thereby extending pump lifespan, reducing 
repairs and maintenance costs, and decreasing the need for redundant capital equipment. In addition, because our VorTeq 
technology  isolates  the  high-pressure  frac-pumps  from  abrasive  proppant,  OFS  fracing  operators  will  have  the  option  to 
transition to more robust, longer lived, centrifugal pumps thereby further decreasing operating and capital costs. While our 
VorTeq replaces a traditional manifold, the competitors to our VorTeq are the high-pressure frac pump manufacturers. There 
are a multitude of these pump manufacturers, including FMC Technologies, the Weir Group, Stewart & Stevenson and Forum 
Energy Technologies. 

Our latest technology offering, the MTeq, enhances the useful life of mud pumps and consumable pump components 
used in land drilling by re-routing the abrasive drilling mud away from the high-pressure pumps, thereby isolating them. 
Because our MTeq isolates the mud pumps from abrasive fluid, OFS operators have the option to transition to more robust, 
longer  life,  centrifugal  pumps  thereby  further  decreasing  operating  and  capital  costs.  Like  the  VorTeq  (described  in  the 
preceding paragraph), the competition to the MTeq is a more robust mud pump or more durable mud pump components. The 
primary  manufacturers of mud pumps are National Oilwell Varco, Inc., Gardner Denver, Inc. and Cameron International 
Corporation. 

Our IsoBoost and IsoGen technologies integrate into acid gas removal systems to reduce energy consumption and 
increase the reliability and uptime of the amine circulation system. Several companies manufacture competitive technology 
to the IsoGen, which primarily consist of reverse running pumps (also called hydraulic power recovery turbines or HPRTs) 
and  perform  a  basic  form  of  energy  recovery.  Manufacturers  of  reverse  running  pumps  include,  but  are  not  limited  to, 
Flowserve, Sulzer Pumps, Ltd., and Shin Nippon Machinery. Several companies manufacture hydraulic turbochargers, which 
could eventually develop into competitive technology to the IsoBoost. However, none of these companies that manufacture 
turbochargers have significant experience within gas processing. In order to utilize a turbocharger in gas processing, expertise 
is required to validate the system level design and integration within a gas processing application. 

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Sales and Marketing 

Water 

In the water market, our strategically located direct sales force offers our products through capital sale, ESAs, and 
financing procurement  vehicles.  MPD opportunities  are  for desalination projects  exceeding 50,000  cubic  meters  per day. 
OEM opportunities include sales of PX ERDs, turbochargers, and pumps for plants typically designed to produce less than 
50,000 cubic meters per day. Aftermarket opportunities include new and replacement parts and products, as well as technical 
support, training, product installation, and plant commissioning.  

Oil & Gas 

In the oil & gas market, we target OFSs, IOCs, NOCs, E&Ps, OEMs or EPCs on behalf of oil producers and chemical 
producers who have applications for our solutions and services. We endeavor to limit capital sales into the oil & gas market, 
thereby minimizing installation and distribution costs, as well as associated sales and marketing expenses. As a result, our 
primary go-to-market strategy in the oil & gas market is through technology licensing. 

We have two agreements in place for the use of our VorTeq technology. In 2014, we entered into a strategic partnership 
with Liberty Oil Field Services (“Liberty”) to pilot and conduct field trials with the VorTeq and in 2015, we entered into a 
15-year  license  agreement  with  our VorTeq Licensee  for  the  exclusive,  worldwide  right  to use  the VorTeq for  hydraulic 
fracturing onshore operations. The license agreement provides a carveout for Liberty’s contractual rights to utilize the VorTeq 
based on a 2014 early-stage strategic partnership agreement.  

We are currently evaluating potential long-term licensing partners for our MTeq technology, with the goal to license 

the technology in the future. 

In  April  2017,  we  entered  into  a  10-year  licensing  agreement  with  Alderley  FZE  for  our  IsoBoost  and  IsoGen 
technologies in gas processing and pipeline applications within the countries of the GCC, as well as Iraq and Iran to the extent 
international sanctions and laws permit. 

A significant portion of our revenue is from outside of  the U.S. Additional segment and geographical information 
regarding  our  product  revenue  is  included  in  Note  13,  “Geographical  Information  and  Concentrations”  of  the  Notes  to 
Consolidated Financial Statements in Part II, Item 8, “Financial Statements and Supplementary Data,” of this Annual Report 
on Form 10-K. 

Operations 

Water 

Our water products are manufactured at our facility located in San Leandro, California, where our PXs, turbochargers 
and pumps are produced, assembled, and tested. We produce the majority of our ceramic components for our PX solutions 
in our advanced ceramics manufacturing facility, where we also complete machining, assembly and performance-testing of 
our PX devices. In addition, many components of our ERDs and pumps are also manufactured in San Leandro to protect the 
proprietary nature of our manufacturing methods and product designs and to maintain premium quality standards. 

We obtain raw, processed and certain pre-machined materials from various suppliers to support our manufacturing 
operations. A limited number of these suppliers are near sole-source to maintain material consistency and support new product 
development. A qualified redundant material source exists in all cases. 

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Our production facility operates under the principles of Lean Manufacturing and continuously seeks ways to improve 

product and process performance. Our quality management system is certified to the ISO9001 standards. 

Water field activities are conducted by our aftermarket and field service organization onsite at customer locations. 

Oil & Gas 

Our oil & gas product manufacturing, assembly, and testing is managed through our operations in Ireland. To produce 
our oil & gas products, we utilize multiple supply chain partners, in addition to our San Leandro manufacturing facility. We 
complete critical machining, assembly, and testing operations in-house to protect the proprietary nature of our manufacturing 
methods and product designs and to maintain premium quality standards. Our Ireland operations are also responsible for 
overseeing the commercialization of the VorTeq and expanding our manufacturing activities. 

Oil & gas field activities are conducted by our field operations organization, which also provides support to R&D 

activities leading to VorTeq and MTeq commercialization. 

Research and Development 

We maintain a robust, multi-year product development road map which guides our R&D resource allocation. Specific 
to new product development, our focus is overwhelmingly on our proprietary PX technology given its prohibitive nature, 
broad technical aperture, and use across a broad array of markets and applications. Our corporate objective is to achieve proof 
of concept of one new derivative of the pressure exchanger annually, on a 24 month cycle. Our immediate R&D efforts are 
principally focused on developing new technologies for use within the oil & gas markets. 

When developing products and ultimately markets for our products, we seek four distinct process criteria: (1) high 
rates of fluid flow; (2) large pressure differentials; (3) hostile fluids; and (4) high degrees of capital intensity, specifically in 
the form of pumping assets. Based on these criteria, our product development strategy is to identify fluid flow applications 
where pumps are being destroyed and/or where pressure energy is being wasted. Our technologies isolate pumping assets 
from  hostile  process  fluids, or recover otherwise wasted pressure  energy.  Our  R&D  efforts are  therefore  focused on:  (1) 
advancing new products in markets beyond desalination, with a specific and immediate emphasis on oil & gas, where our 
technology is utilized to preserve pumping assets; and (2) enhancing our existing energy recovery devices and pumps for the 
water desalination market. 

To support our product strategy, we invest in engineering talent with expertise in fluid physics and advanced material 
science. In addition, to enable increasingly complex and shorter-cycle product development, we invest in advanced numerical 
modeling and analysis infrastructure allowing for 3D, multi-phase, multi-physics, and computational fluid dynamics. These 
models coupled with our existing structural interaction analytical capabilities supports our objective of achieving the proof 
of concept of one new derivative of the pressure exchanger each year.  

Our product development process evaluates potential technology applications across a set of criteria to determine the 
allocation  of  finite  internal  resources  and  prioritize  target  applications.  Once  a  target  application  is  identified  and  we 
determine conceptually how our technology can solve a problem, our product development steps start with evaluating the 
concept through analytical methods. This is followed by validating the analysis experimentally at sub-scale, then full-scale 
and finally as a system. Each of these stages follow a rigorous review process (business as well as technical) in order to steer 
the development towards a successful new technology. 

Within our Water segment, R&D investments have produced the latest and most efficient energy recovery device, the 
PX  Prime.  In  addition,  we  continue  to  advance  our  turbocharger  and  pump  technologies  to  better  service  our  water  end 
markets. 

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Within our Oil & Gas segment, R&D investments are primarily focused on commercializing the VorTeq and MTeq, 
as well as developing new products for applications where pumping assets are compromised due to hostile process fluids. 
Our foremost priority remains the commercialization of VorTeq. 

Seasonality 

In our Water segment, we often experience substantial fluctuations in product revenue from quarter-to-quarter and 
from year-to-year because a single order for our ERDs by a large EPC firm for a particular plant may represent significant 
revenue. In addition, historically our EPC customers tend to order a significant amount of equipment for delivery in the fourth 
quarter, and as a consequence, a significant portion of our annual sales typically occur during the fourth quarter. 

In our Oil & Gas segment, we do not currently have enough history to determine seasonal revenue patterns. 

Intellectual Property 

We seek patent protection for new technologies, inventions, and improvements that are likely to be incorporated into 
our solutions. We rely on patents, trade secret laws, and contractual safeguards to protect the proprietary tooling, processing 
techniques, and other know-how used in the production of our solutions. We have a robust intellectual property portfolio 
consisting of U.S. and International issued patents as well as pending patent applications. 

We have registered the following trademarks with the United States Patent and Trademark office: “ERI,” “PX,” “PX 
Pressure Exchanger,” “Pressure Exchanger,” the Energy Recovery logo, “Making Desalination Affordable,” “IsoBoost,” and 
“IsoGen.”  Applications  are  pending  for  “VorTeq”  and  “MTeq.”  We  have  also  applied  for  and  received  registrations  in 
international trademark offices. 

Employees 

As of December 31, 2017, we had 133 employees: 47 in manufacturing; 25 in engineering, research and development; 
34 in corporate services and management; and 27 in sales, service, and marketing. Fourteen of these employees were located 
outside of the United States. We also engage a relatively small number of independent contractors, primarily as sales agents 
worldwide. We have not experienced any work stoppages, and our employees are not unionized. 

Additional Information 

The Energy Recovery website is www.energyrecovery.com. We use the Investor Relations section of our website as a 
routine channel for distribution of important information, including news releases, presentations, and financial statements. 
We intend to use the Investor Relations section of our website as a means of complying with our disclosure obligations under 
Regulation FD. Accordingly, investors should monitor our Investor Relations website in addition to press releases, Securities 
and Exchange Commission (“SEC”) filings, and public conference calls and webcasts. Our Annual Report on Form 10-K, 
quarterly reports on Form 10-Q, current reports on Form 8-K, all amendments to those reports, and the Proxy Statement for 
our Annual Meeting of Stockholders are made available, free of charge, in the Investor Relations section of our website, as 
soon as reasonably practicable after the reports have been filed with or furnished to the SEC. The information contained on 
our website or any other website is not part of this report nor is it considered to be incorporated by reference herein or with 
any other filing we make with the SEC. Our headquarters and primary manufacturing center is located at 1717 Doolittle 
Drive, San Leandro, California 94577, and our main telephone number is (510) 483-7370. 

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Item 1A — Risk Factors 

The  following  discussion  sets  forth  what  management  currently  believes  could  be  the  most  significant  risks  and 
uncertainties that could impact our businesses, results of operations, and financial condition. Other risks and uncertainties, 
including those not currently known to the Company or its management, could also negatively impact our businesses, results 
of operations, and financial conditions. Accordingly, the following should not be considered a complete discussion of all of 
the risks and uncertainties the Company may face. We may amend or supplement these risk factors from time to time in other 
reports we file with the SEC. 

Risk Related to our Water Segment 

•  Our  Water  Segment  depends  on  the  construction  of  new  desalination  plants  for  revenue,  and  as  a  result,  our
operating  results  have  experienced,  and  may  continue  to  experience,  significant  variability  due  to  volatility  in
capital spending, availability of project financing, and other factors affecting the water desalination industry. 

We currently derive the majority of our revenue from sales of products and services used in desalination plants for 
municipalities,  hotels,  mobile  containerized  desalination  solutions,  resorts,  and  agricultural  operations  in  dry  or  drought-
ridden regions of the world. The demand for our Water segment products may decrease if the construction of desalination 
plants declines for political, economic, or other factors, especially in these dry or drought-ridden regions. Other factors that 
could affect the number and capacity of desalination plants built or the timing of their completion include the availability of 
required  engineering  and  design  resources;  a  weak  global  economy;  shortage  in  the  supply  of  credit  and  other  forms  of 
financing;  changes  in  government  regulation,  permitting  requirements,  or  priorities;  and  reduced  capital  spending  for 
desalination. Each of these factors could result in reduced or uneven demand for our Water segment products. Pronounced 
variability or delays in the construction of desalination plants or reductions in spending for desalination, could negatively 
impact our Water segment sales and revenue, which in turn could have an adverse effect on our entire business, financial 
condition, or results of operations and make it difficult for us to accurately forecast our future sales and revenue. 

•  Our Water segment faces competition from a number of companies that offer competing energy recovery and pump
solutions. If any one of these companies produces superior technology or offers more cost-effective products, our 
competitive position in the market could be harmed and our profits may decline. 

The market for ERD and pumps for desalination plants is competitive and evolving. We expect competition, especially 
competition on price, to persist and intensify as the desalination market grows and new competitors enter the market. Some 
of our current and potential competitors may have significantly greater financial, technical, marketing, and other resources; 
longer operating histories; or greater name recognition. They may also have more extensive products and product lines that 
would enable them to offer multi-product or packaged solutions as well as competing products at lower prices or with other 
more favorable terms and conditions. As a result, our ability to sustain our market share may be adversely impacted, which 
would affect our business, operating results, and financial condition. In addition, if one of our competitors were to merge or 
partner  with  another  company,  the  change  in  the  competitive  landscape  could  adversely  affect  our  continuing  ability  to 
compete effectively. 

• 

If we are unable to collect unbilled receivables, which are caused in part by holdback provisions, our operating
results could be adversely affected. 

Our contracts with large engineering, procurement, and construction firms generally contain holdback provisions that 
typically delay final installment payments for our products by up to 24 months, after the product has been shipped and revenue 
has been recognized. Generally 10% or less of the revenue we recognize pursuant to our customer contracts is subject to such 
holdback  provisions  and  is  accounted  for  as  unbilled  receivables.  Such  holdbacks  may  result  in  relatively  high  unbilled 
receivables. If we are unable to collect these performance holdbacks, our results of operations would be adversely affected. 

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•  We depend on a limited number of suppliers for some of our components. If our suppliers are not able to meet our

demand and/or requirements, our business could be harmed. 

We  rely  on  a  limited  number  of  suppliers  for  vessel  housings,  stainless  steel  ports,  alumina  powder,  and  tungsten 
carbide for our portfolio of PX ERDs and stainless steel castings and components for our turbochargers and pumps. Our 
reliance on a limited number of manufacturers for these supplies involves a number of risks, including reduced control over 
delivery schedules, quality assurance, manufacturing yields, production costs, and lack of guaranteed production capacity or 
product supply. We do not have long-term supply agreements with these suppliers but secure these supplies on a purchase 
order basis. Our suppliers have no obligation to supply products to us for any specific period, in any specific quantity, or at 
any specific price, except as set forth in a particular purchase order. Our requirements may represent a small portion of the 
total  production  capacities  of  these  suppliers,  and  our  suppliers  may  reallocate  capacity  to  other  customers,  even  during 
periods of high demand for our products. We have in the past experienced, and may in the future experience, product quality 
issues and delivery delays with our suppliers due to factors such as high industry demand or the inability of our vendors to 
consistently meet our quality or delivery requirements. If our suppliers were to cancel or materially change their commitments 
to us or fail to meet quality or delivery requirements needed to satisfy customer orders for our products, we could lose time-
sensitive customer orders, be unable to develop or sell our products cost-effectively or on a timely basis, if at all, and have 
significantly decreased revenue, which could harm our business, operating results, and financial condition. We may qualify 
additional suppliers in the future, which would require time and resources. If we do not qualify additional suppliers, we may 
be exposed to increased risk of capacity shortages due to our dependence on current suppliers. 

Risk Related to our Oil & Gas Segment 

•  We may not be able to successfully commercialize the VorTeq. 

In October 2015, we entered into the VorTeq License Agreement with the VorTeq Licensee which provides the VorTeq 
Licensee with exclusive worldwide rights to our VorTeq technology for hydraulic fracturing onshore applications. Once the 
VorTeq  is  commercialized,  the  VorTeq  Licensee  will  begin  paying  ongoing  recurring  royalty  fees  to  us  for  the  VorTeq 
technology. In order to commercialize the VorTeq, the VorTeq License Agreement provides, among other things, that we 
successfully meet certain specified milestones against key performance indicators set forth in the license agreement. The 
VorTeq is a relatively new technology and the hydraulic fracturing process is extremely complex which presents a wide range 
of technological challenges for us. If we are unable to successfully solve these challenges and, as a result, fail to meet the 
milestones, we may not be able to successfully commercialize the VorTeq. In that circumstance, we will not receive any 
royalty payments from the VorTeq Licensee, which could have an adverse effect on our entire business, financial condition, 
or results of operation. 

• 

If the VorTeq Licensee fails to adopt the VorTeq, for any reason, we may not receive royalty payments or be able to
successfully commercialize the VorTeq. 

The  successful  commercialization  of  the  VorTeq  depends  heavily  on  the  VorTeq  Licensee’s  support  and  ultimate 
adoption  of  the  technology.  If  the  VorTeq  Licensee  fails  to  adopt  the  VorTeq,  for  any  reason,  we  may  not  be  able  to 
successfully commercialize the VorTeq with the VorTeq Licensee and consequently, we may not receive any royalties under 
the VorTeq License Agreement. In addition, we may not be able to find a suitable replacement for the VorTeq Licensee or 
be able to negotiate royalties similar to those contained in the VorTeq License Agreement or to commercialize the VorTeq at 
all. Failure to commercialize the VorTeq could have an adverse effect on our entire business, financial condition, or results 
of operation. 

•  We  may  not  meet  the  key  performance  indicators  necessary  to  meet  the  two  milestones  in  the  VorTeq  License

Agreement. 

The  VorTeq  License  Agreement  calls  for  certain  milestone  key  performance  indicators  that  if  met  will  result  in 
payments to the Company of $25 million for each of two milestones. Achievement of these milestones is uncertain, and while 
we believe we can meet the milestones, if we are unable to do so, the milestone payments will be delayed until such time as 

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the  milestones  are  met  or  not  earned  and  received  at  all.  Failure  to  meet  said  milestones  may  also  jeopardize 
commercialization and the rate of adoption of our VorTeq. 

•  We  may  not  be  able  to  successfully  complete  early  stage  testing  of  the  MTeq,  enter  into  a  long  term  licensing

agreement for the MTeq or fail to commercialize the MTeq. 

We introduced the MTeq in 2017 and entered into a strategic early stage testing agreement in the second quarter of 
2017. Like the VorTeq, we intend to find a long-term licensing partner for the MTeq and to ultimately commercialize the 
MTeq. The early stage testing agreement with Sidewinder Drilling is intended to validate the MTeq system through yard 
testing. However, the MTeq is a relatively new technology and those tests may prove unsuccessful. Even if early stage testing 
proves to be successful, we may not be able to identify a licensing partner for the technology to assist us in bringing the MTeq 
solution  to  the  market.  If  we  were  able  to  enter  into  such  a  licensing  agreement,  we  may  still  fail  to  produce  a  viable 
commercialized solution given the complex and extreme conditions found in mud pumping, which present a wide range of 
technological challenges for us. If we are unable to successfully complete early stage testing, or fail to locate and successfully 
negotiate a licensing or similar agreement with a long term partner, or fail to solve any of the technological challenges, we 
may not be able to successfully commercialize the MTeq, which could have an adverse effect on our entire business, financial 
condition, or results of operation. 

•  Our Oil & Gas segment may be impacted by prolonged deflation in global oil prices which may cause delays or 
cancellations of projects by Oil & Gas segment customers, negatively affecting the rate of our market penetration
and consequently our revenue and profitability. 

A deflationary oil environment such as the one experienced over the last few years may delay and even stall adoption 
and deployment of our products within our Oil & Gas segment including but not limited to the VorTeq as licensed for onshore 
applications by the VorTeq Licensee. Emerging market economies, those dependent on commodity exports, and especially 
those  for  whom  oil  exports  make  up  a  significant  percent  of  total  exports,  may  be  unable  to  retrofit  or  expand  their  oil 
exploration,  production,  and  gas  processing  infrastructure  thus  negatively  impacting  our  addressable  market  and  future 
revenue. Additionally, oil price deflation may continue to lead to widespread liquidity and insolvency issues for exploration, 
production,  and  processing  customers,  which  may  negatively  affect  our  addressable  markets  and  therefore  our  financial 
performance. 

•  Within our Oil & Gas segment, the use of the percentage-of-completion method of accounting for the IsoBoost and
IsoGen  products  requires  us  to  make  estimates  and  judgments,  which  are  subject  to  an  inherent  degree  of
uncertainty and which may differ from actual results. 

The IsoBoost and IsoGen systems are highly engineered, customized solutions that are designed and manufactured 
over an extended period of time and are built specifically to meet a customer’s specifications. It is the Company’s position 
that the percentage-of-completion method of accounting is appropriate for the IsoBoost and IsoGen systems given the facts 
and circumstances of these projects. This methodology requires the application of significant judgment by management in 
selecting the appropriate assumptions for calculating revenue and costs. Revenue and profits are recognized over the life of 
a project based on costs incurred to date compared to total estimated project costs. Revisions to revenues and profits are made 
once amounts are known and can be reasonably estimated. In addition, percentage-of-completion revenue may vary from 
quarter to quarter while a project is being completed due to accounting requirements. Given the uncertainties in accurately 
estimating the costs of projects, as well as providing reliable estimates to completion, it is possible for actual amounts to vary 
significantly  from  estimates  previously  made,  which  may  result  in  the  reversal  of  revenues  and  gross  profit  previously 
recognized and publicly reported. 

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Risk Related to our Entire Business 

•  Our diversification into new fluid flow markets, such as oil & gas, may not be successful 

We have made a substantial investment in research, development, and sales to execute on our diversification strategy 
into fluid flow markets such as oil & gas and chemical processing. While we see diversification as core to our growth strategy, 
there is no guarantee that we will be successful in our efforts. Our model for growth is based on our ability to initiate and 
embrace disruptive technology trends, to enter new markets, both in terms of geographies and product areas, and to drive 
broad adoption of the products and services that we develop and market. Any inability to execute this model for growth could 
damage our reputation, limit our growth, and negatively affect our operation results. For example, while we believe that our 
products will enable gas processing plant operators to operate at a high level of energy efficiency with minimal downtime, 
we may be subject to warranty claims if customers of these offerings experience significant downtimes or failures for which 
our warranty reserves may be inadequate given the lack of historical failure rates associated with new product introductions. 
We also could be subject to damage claims based on our products against which we may not be able to properly insure. In 
addition,  profitability,  if  any,  in  new  industrial  verticals  may  be  lower  than  in  our  Water  Segment,  and  we  may  not  be 
sufficiently successful in our diversification efforts to recoup investments. 

•  Our  operating  results  may  fluctuate  significantly,  making  our  future  operating  results  difficult  to  predict  and

causing our operating results to fall below expectations. 

Our operating results may fluctuate due to a variety of factors, many of which are outside of our control. 

We have experienced significant fluctuations in revenue from quarter-to-quarter and year-to-year, and we expect such 
fluctuations to continue. In addition, in the past, customer buying patterns led to a significant portion of our sales occurring 
in the fourth quarter. This presents the risk that delays, cancellations, or other adverse events in the fourth quarter could have 
a substantial negative impact on annual results. As a result, comparing our operating results on a period-to-period basis may 
not be meaningful. Since it is difficult for us to anticipate our future results, in the event our revenue or operating results fall 
below the expectations of investors or securities analysts, our stock price may decline. 

•  Our sales cycles can be long and unpredictable, and our sales efforts require considerable time and expense. As a
result, our sales are difficult to predict and may vary substantially from quarter to quarter, which may cause our
operating results to fluctuate. 

Our sales efforts involve substantial education of our current and prospective customers about the use and benefits of 
our energy recovery products. This education process can be time-consuming and typically involves a significant product 
evaluation process which is particularly pronounced when dealing with product introduction into new fluid flow industrial 
verticals. In our Water segment, the sales cycle for our OEM customers, which are involved with smaller desalination plants, 
averages one to 12 months. The Water segment sales cycle for our international engineering, procurement, and construction 
firm customers, which are involved with larger desalination plants, ranges from 16 to 36 months. In our Oil & Gas segment, 
experience  indicates  that  sales  efforts  are  prolonged  due  in  part  to  customers’  reluctance  to  accept  new  technology, 
procurement  processes,  plant  turnaround  dates,  and  budgetary  constraints.  The  sales  cycle  for  our  Oil  &  Gas  segment 
customers ranges from 16 to 36 months. These long sales cycles make quarter-by-quarter revenue predictions difficult and 
results in our expending significant resources well in advance of orders for our products. 

•  Our business entails significant costs that are fixed or difficult to reduce in the short term while demand for our

products is variable and subject to fluctuation, which may adversely affect our operating results. 

Our business requires investments in facilities, equipment, research and development, and training that are either fixed 
or difficult to reduce or scale in the short term. At the same time, the market for our products is variable and has experienced 
downturns  due  to  factors  such  as  economic  recessions,  increased  precipitation,  uncertain  global  financial  markets,  and 
political changes, many of which are outside of our control. During periods of reduced product demand, we may experience 
higher relative costs and excess manufacturing capacity, resulting in high overhead and lower gross profit margins while 
causing cash flow and profitability to decline. Similarly, although we believe that our existing manufacturing facilities are 

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capable of meeting current demand and demand for the foreseeable future, the continued success of our business depends on 
our ability to expand our manufacturing, research and development, and testing facilities to meet market needs. If we are 
unable  to respond  timely  to  an  increase  in demand, our revenue, gross profit  margin, net  income,  and  cash flow  may  be 
adversely affected. 

•  Parts of our inventory may become excess or obsolete, which would increase our cost of revenues. 

Inventory of raw materials, parts, components, work in-process, or finished products may accumulate, and we may 
encounter losses due to a variety of factors, including technological change in the water desalination and oil & gas industries 
that result in product changes; long delays in shipment of our products or order cancellations; our need to order raw materials 
that have long lead times and our inability to estimate exact amounts and types of items needed, especially with regard to the 
configuration  of  our  high-efficiency  pumps  and  IsoBoost  and  IsoGen  systems;  and  cost  reduction  initiatives  resulting  in 
component changes within the products. 

In addition, we may from time to time purchase more inventory than is immediately required in order to shorten our 
delivery time in case of an anticipated increase in demand for our products. If we are unable to forecast demand for our 
products with a reasonable degree of certainty and our actual orders from our customers are lower than these forecasts, we 
may accumulate excess inventory that we may be required to write off, and our business, financial condition, and results of 
operations could be adversely affected. 

•  We may not generate positive returns on our research and development strategy. 

Developing our products is expensive and the investment in product development may involve a long payback cycle. 
For the years ended December 31, 2017, 2016 and 2015, our R&D expenses were $13.4 million, or approximately 21% of 
our total revenue, $10.1 million, or approximately 19% of our total revenue, and $7.7 million, or approximately 17% of our 
total revenue, respectively. We expect to continue to invest heavily in R&D in order to introduce new products and achieve 
proof of concept of at least one new derivative of the pressure exchanger every year. We believe one of our greatest strengths 
lies  in  our  innovation  and  our  product  development  efforts.  By  investing  in  R&D,  we  believe  we  are  well  positioned  to 
continue to execute on our product strategy, take into consideration our customers’ cost and efficiency sensitivities and take 
advantage of other market opportunities. We expect that our results of operations may be impacted by the timing and size of 
these investments. In addition, these investments may take several years to generate positive returns, if ever. 

•  We are subject to risks related to product defects, which could lead to warranty claims in excess of our warranty

provision or result in a significant or a large number of warranty or other claims in any given year. 

We provide a warranty for certain products for a period of 18 to 30 months and provide up to a 5-year warranty for the 
ceramic components of our PX-branded products. We test our products in our manufacturing facilities through a variety of 
means; however, there can be no assurance that our testing will reveal latent defects in our products, which may not become 
apparent until after the products have been sold into the market. The testing may not replicate the harsh, corrosive, and varied 
conditions of the desalination and other plants in which they are installed. It is also possible that components purchased from 
our suppliers could break down under those conditions. Certain components of our turbochargers and pumps are custom-
made and may not scale or perform as required in production environments. Accordingly, there is a risk that we may have 
significant warranty claims or breach supply agreements due to product defects. We may incur additional cost of revenue if 
our warranty provisions are not sufficient to cover the actual cost of resolving issues related to defects in our products. If 
these  additional  expenses  are  significant,  they  could  adversely  affect  our  business,  financial  condition,  and  results  of 
operations. 

•  Business interruptions may damage our facilities or those of our suppliers. 

Our operations and those of our suppliers may be vulnerable to interruption by fire, earthquake, flood, and other natural 
disasters, as well as power loss, telecommunications failure, and other events beyond our control. Our facilities in California 
are located near major earthquake faults and have experienced earthquakes in the past. If a natural disaster occurs, our ability 
to  conduct  our  operations  could  be  seriously  impaired,  which  could  harm  our  business,  financial  condition,  results  of 

- 18 - 

 
operations, and cash flows. We cannot be sure that the insurance we maintain against general business interruptions will be 
adequate to cover all of our losses. 

• 

If we are unable to protect our technology or enforce our intellectual property rights, our competitive position could
be harmed, and we could be required to incur significant expenses to enforce our rights. 

Our competitive position depends on our ability to establish and maintain proprietary rights in our technology and to 
protect our technology from copying by others. We rely on trade secret, patent, copyright, and trademark laws, as well as 
confidentiality agreements with employees and third parties, all of which may offer only limited protection. We hold a number 
of U.S. and counterpart international patents, and when their terms expire, we could become more vulnerable to increased 
competition.  The  protection  of  our  intellectual  property  in  some  countries  may  be  limited.  While  we  have  expanded  our 
portfolio of patent applications, we do not know whether any of our pending patent applications will result in the issuance of 
patents or whether the examination process will require us to narrow our claims, and even if patents are issued, they may be 
contested, circumvented, or invalidated. Moreover, while we believe our issued patents and patent pending applications are 
essential to the protection of our technology, the rights granted under any of our issued patents or patents that may be issued 
in  the  future  may  not  provide  us  with  proprietary  protection  or  competitive  advantages,  and  as  with  any  technology, 
competitors may be able to develop similar or superior technologies now or in the future. In addition, our granted patents 
may not prevent misappropriation of our technology, particularly in foreign countries where intellectual property laws may 
not protect our proprietary rights as fully as those in the United States. This may render our patents impaired or useless and 
ultimately  expose  us  to  currently  unanticipated  competition.  Protecting  against  the  unauthorized  use  of  our  products, 
trademarks, and other proprietary rights is expensive, difficult, and in some cases, impossible. Litigation may be necessary 
in the future to enforce or defend our intellectual property rights or to determine the validity and scope of the proprietary 
rights of others. Intellectual property litigation could result in substantial costs and diversion of management resources, either 
of which could harm our business. 

•  Claims by others that we infringe their proprietary rights could harm our business. 

Third  parties  could  claim  that  our  technology  infringes  their  intellectual  property  rights.  In  addition,  we  or  our 
customers may be contacted by third parties suggesting that we obtain a license to certain of their intellectual property rights 
that they may believe we are infringing. We expect that infringement claims against us may increase as the number of products 
and  competitors  in  our  market  increases  and  overlaps occur.  In  addition, to  the  extent  that  we gain greater  visibility,  we 
believe  that  we  will  face  a  higher  risk  of  being  the  subject  of  intellectual  property  infringement  claims.  Any  claim  of 
infringement by a third party, even those without merit, could cause us to incur substantial costs defending against the claim 
and could distract management from our business. Furthermore, a party making such a claim, if successful, could secure a 
judgment that requires us to pay substantial damages. A judgment against us could also include an injunction or other court 
order that could prevent us from offering our products. In addition, we might be required to seek a license for the use of such 
intellectual  property,  which  may  not  be  available  on  commercially  reasonable  terms,  or  at  all.  Alternatively,  we  may  be 
required to develop non-infringing technology, which could require significant effort and expense and may ultimately not be 
successful. Any of these events could seriously harm our business. Third parties may also assert infringement claims against 
our customers. Because we generally indemnify our customers if our products infringe the proprietary rights of third parties, 
any  such  claims  would  require  us  to  initiate  or  defend  protracted  and  costly  litigation  on  their  behalf  in  one  or  more 
jurisdictions, regardless of the merits of these claims. If any of these claims succeed, we may be forced to pay damages on 
behalf of our customers. 

•  We are currently involved in legal proceedings, and may be subject to additional future legal proceedings, that may

result in material adverse outcomes. 

In  addition  to  intellectual  property  litigation  risks  discussed  above,  we  are  presently  involved,  and  may  become 
involved in the future, in various commercial and other disputes as well as related claims and legal proceedings that arise 
from time to time in the course of our business. See Note 16, “Litigation,” of the Notes to Consolidated Financial Statements 
in Part II, Item 8, “Financial Statements and Supplementary Data,” of this Annual Report on Form 10-K for information 
about certain legal proceedings in which we are involved. Our current legal proceedings and any future lawsuits to which we 

- 19 - 

 
may become a party are and will likely be expensive and time consuming to investigate, defend and resolve, and will divert 
our management’s attention. Any litigation to which we are a party may result in an onerous or unfavorable judgment that 
may not be reversed upon appeal or in payments of substantial monetary damages or fines, or we may decide to settle lawsuits 
on  similarly  unfavorable  terms,  which  could  have  an  adverse  effect  on  our  business,  financial  condition,  or  results  of 
operations. 

•  Our global operations expose us to risks and challenges associated with conducting business internationally, and
our results of operations may be adversely affected by our efforts to comply with the laws of other countries, as well
as U.S. laws which apply to international operations, such as the Foreign Corrupt Practices Act (FCPA) and U.S.
export control laws. 

We operate on a global basis with offices or activities in Europe, Africa, Asia, South America, and North America. 
We face risks inherent in conducting business internationally, including compliance with international and U.S. laws and 
regulations  that  apply  to  our  international  operations.  These  laws  and  regulations  include  tax  laws,  anti-competition 
regulations, import and trade restrictions, export control laws, and laws which prohibit corrupt payments to governmental 
officials or certain payments or remunerations to customers, including the U.S. Foreign Corrupt Practices Act (“FCPA”) or 
other anti-corruption laws that have recently been the subject of a substantial increase in global enforcement. Many of our 
products are subject to U.S. export law restrictions that limit the destinations and types of customers to which our products 
may be sold, or require an export license in connection with sales outside the United States. Given the high level of complexity 
of  these  laws,  there  is  a  risk  that  some  provisions  may  be  inadvertently  or  intentionally  breached,  for  example  through 
fraudulent  or  negligent  behavior  of  individual  employees,  our  failure  to  comply  with  certain  formal  documentation 
requirements, or otherwise. Also, we may be held liable for actions taken by our local dealers and partners. Violations of 
these laws and regulations could result in fines, criminal sanctions against us, our officers or our employees, and prohibitions 
or conditions on the conduct of our business. Any such violations could include prohibitions or conditions on our ability to 
offer our products in one or more countries and could materially damage our reputation, our brand, our business, and our 
operating  results.  In  addition,  we  operate  in  many  parts  of  the  world  that  have  experienced  significant  governmental 
corruption to some degree and, in certain circumstances, strict compliance with anti-bribery laws may conflict with local 
customs and practices. We may be subject to competitive disadvantages to the extent that our competitors are able to secure 
business, licenses, or other preferential treatment by  making payments to government  officials and others in positions of 
influence or through other methods that relevant law and regulations prohibit us from using. Our success depends, in part, on 
our ability to anticipate these risks and manage these difficulties. These factors or any combination of these factors  may 
adversely affect our revenue or our overall financial performance. 

•  The U.S. Congress and Trump Administration may make substantial changes to fiscal, political, regulation and
other federal policies that may adversely affect our business, financial condition, operating results and cash flows. 

Changes in general economic or political conditions in the United States or other regions could adversely affect our 
business.  For  example,  the  administration  under  President  Donald  Trump  has  indicated  that  it  may  propose  significant 
changes with respect to a variety of issues, including international trade agreements, import and export regulations, tariffs 
and customs duties, foreign relations, immigration laws, tax laws, corporate governance laws and corporate fuel economy 
standards, that could have a positive or negative impact on our business. Proposals espoused by the Trump Administration 
may result in changes to social, political, regulatory, and economic conditions in the United States or in laws and policies 
affecting the development and investment in countries where we currently conduct business, sell our products, or procure our 
raw  materials.  In  addition,  these  changes  could  result  in  negative  sentiments  towards  the  United  States  among  non-U.S. 
customers. We cannot predict the impact, if any, of these changes to our business. However, it is possible that these changes 
could adversely affect our business due to the substantial exposure we have to international markets which could have an 
adverse effect on our business, financial condition, or results of operations. 

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•  Regulations related to conflict minerals could adversely impact our business. 

The Dodd-Frank Wall Street Reform and Consumer Protection Act contains provisions to improve transparency and 
accountability  concerning  the  supply  of  certain  minerals,  known  as  conflict  minerals,  originating  from  the  Democratic 
Republic of Congo (“DRC”) and adjoining countries. As a result, in August 2012, the SEC adopted annual disclosure and 
reporting requirements for those companies who use conflict minerals mined from the DRC and adjoining countries in their 
products. Based on our purchasing policy and supplier selection, it is considered unlikely that any conflict minerals are used 
in  the  manufacturing  of  our  products.  Nevertheless,  we  are  continuing  reasonable  country  of  origin  inquiry  and  have 
implemented a program of due diligence on the source and chain of custody for conflict minerals. There are costs associated 
with complying with these disclosure requirements, including loss of customers and potential changes to products, processes, 
or sources of supply as a consequence of our verification activities. The implementation of these rules could adversely affect 
the  sourcing,  supply,  and  pricing  of  materials  used  in  our  products.  As  there  may  be  only  a  limited  number  of  suppliers 
offering “conflict free” minerals, we cannot be sure that we will be able to obtain necessary materials from such suppliers in 
sufficient quantities or at competitive prices. Also, we may face reputational challenges if we determine that certain of our 
products contain minerals not determined to be conflict-free or if we are unable to sufficiently verify the origins for all conflict 
minerals used in our products through the procedures we have implemented. 

•  We may have risks associated with security of our information technology systems. 

We make significant efforts to maintain the security and integrity of our information technology systems and data. 
Despite significant efforts to create security barriers to such systems, it is virtually impossible for us to entirely mitigate this 
risk. There is a risk of industrial espionage, cyber-attacks, misuse or theft of information or assets, or damage to assets by 
people who may gain unauthorized access to our facilities, systems, or information. Such cybersecurity breaches, misuse, or 
other disruptions could lead to the disclosure of confidential information, improper usage and distribution of our intellectual 
property, theft, manipulation and destruction of private and proprietary data, and production downtimes. Although we actively 
employ measures to prevent unauthorized access to our information systems, preventing unauthorized use or infringement of 
our rights is inherently difficult. These events could adversely affect our financial results and any legal action in connection 
with  any  such  cybersecurity  breach  could  be  costly  and  time-consuming  and  may  divert  management’s  attention  and 
adversely affect the market’s perception of us and our products. 

•  We may have risks associated with our international tax optimization structure 

In 2015, we implemented an international tax optimization structure. Subsidiaries were established in Ireland and we 
transferred  our  Oil  &  Gas  segment  intellectual  property  via  platform  licenses  to  ERI  Energy  Recovery  Holdings  Ireland 
Limited. We have undertaken extensive due diligence, implemented and continue to implement manufacturing, R&D, and 
sales  operations  to  create  Irish  substance,  and  have  conferred  with  tax  experts  to  ensure  that  uncertain  tax  positions  are 
unlikely. It is possible that the international tax structure could be examined by the Internal Revenue Service in the U.S. 
and/or the Tax Authorities in Ireland, and it is possible that such an examination could result in an unfavorable impact on us. 

•  The enactment of legislation implementing changes in taxation of international business activities, the adoption of
other corporate tax reform policies, or changes in tax legislation or policies could materially impact our financial
position and results of operations.  

Corporate tax reform, base-erosion efforts and tax transparency continue to be high priorities in many tax jurisdictions 
where we have business operations. As a result, policies regarding corporate income and other taxes in numerous jurisdictions 
are  under  heightened  scrutiny  and  tax  reform  legislation  is  being  proposed  or  enacted  in  a  number  of  jurisdictions.  For 
example, on December 22, 2017, President Trump signed into law “H.R.1”, known as the “Tax Cuts and Jobs Act”, (the “Tax 
Act”), which significantly changes existing U.S. tax laws. 

In addition, many countries are beginning to implement legislation and other guidance to align their international tax 
rules with the Organisation for Economic Co-operation’s Base Erosion and Profit Shifting recommendations and action plan 
that aim to standardize and modernize global corporate tax policy, including changes to cross-border tax, transfer-pricing 
documentation rules, and nexus-based tax incentive practices. As a result of the heightened scrutiny of corporate taxation 
- 21 - 

 
policies, prior decisions by tax authorities regarding treatments and positions of corporate income taxes could be subject to 
enforcement activities, and legislative investigation and inquiry, which could also result in changes in tax policies or prior 
tax rulings. Any such changes in policies or rulings may also result in the taxes we previously paid being subject to change. 

Due to the scale of our international business activities any substantial changes in international corporate tax policies, 
enforcement activities or legislative initiatives may materially and adversely affect our business, the amount of taxes we are 
required to pay and our financial condition and results of operations generally. 

• 

If we need additional capital to fund future growth, it may not be available on favorable terms, or at all. 

Our primary source of cash historically has been customer payments for our products and services and proceeds from 
the issuance of common stock. This has funded our operations and capital expenditures. We may require additional capital 
from  equity  or  debt  financing  in  the  future  to  fund  our  operations  or  respond  to  competitive  pressures  or  strategic 
opportunities, such as a potential acquisition or the expansion of operations. We may not be able to secure such additional 
financing on favorable terms or at all. The terms of additional financing may place limits on our financial and operational 
flexibility. If we raise additional funds through further issuances of equity, convertible debt securities, or other securities 
convertible  into  equity,  our  existing  stockholders  could  suffer  significant  dilution  in  their  percentage  ownership  of  our 
company, and any new securities that we issue could have rights, preferences, or privileges senior to those of existing or 
future holders of our common stock. If we are unable to obtain necessary financing on terms satisfactory to us, if and when 
we require it, our ability to grow or support our business and to respond to business challenges or opportunities could be 
significantly limited. 

•  We may seek to expand through acquisitions of and investments in other businesses, technologies, and assets. These

acquisition activities may be unsuccessful or divert management’s attention. 

We may consider strategic and complementary acquisitions of and investments in other businesses, technologies, and 

assets, and such acquisitions or investments are subject to risks that could affect our business, including risks related to: 

• 
• 
• 
• 
• 
• 
• 

• 
• 
• 
• 
• 
• 
• 
• 

the necessity of coordinating geographically disparate organizations; 
implementing common systems and controls; 
integrating personnel with diverse business and cultural backgrounds; 
integrating acquired research and manufacturing facilities, technology and products; 
combining different corporate cultures and legal systems; 
unanticipated expenses related to integration, including technical and operational integration; 
increased costs and unanticipated liabilities, including with respect to registration, environmental, health and 
safety matters, that may affect sales and operating results; 
retaining key employees; 
obtaining required government and third-party approvals; 
legal limitations in new jurisdictions; 
installing effective internal controls and audit procedures; 
issuing common stock that could dilute the interests of our existing stockholders; 
spending cash and incurring debt; 
assuming contingent liabilities; and 
creating additional expenses. 

We may not be able to identify opportunities or complete transactions on commercially reasonable terms, or at all, or 
actually  realize  any  anticipated  benefits  from  such  acquisitions  or  investments.  Similarly,  we  may  not  be  able  to  obtain 
financing for acquisitions or investments on attractive terms. If we do complete acquisitions, we cannot ensure that they will 
ultimately strengthen our competitive or financial position or that they will not be viewed negatively by customers, financial 
markets, investors, or the media. In addition, the success of any acquisitions or investments also will depend, in part, on our 
ability to integrate the acquisition or investment with our existing operations. 

- 22 - 

 
•  Our actual operating results may differ significantly from our guidance. 

We release guidance in our quarterly earnings conference calls, quarterly earnings releases, or otherwise, regarding 
our future performance that represents our management’s estimates as of the date of release. This guidance which, includes 
forward-looking statements, will be based on projections prepared by our management. These projections will not be prepared 
with a view toward compliance with published guidelines of the American Institute of Certified Public Accountants, and 
neither  our  registered  public  accountants  nor  any  other  independent  expert  or  outside  party  compiles  or  examines  the 
projections.  Accordingly,  no  such  person  will  express  any  opinion  or  any  other  form  of  assurance  with  respect  to  the 
projections. 

Projections are based upon a number of assumptions and estimates that, while presented with numerical specificity, 
are inherently subject to significant business, economic and competitive uncertainties and contingencies, many of which are 
beyond our control and are based upon specific assumptions with respect to future business decisions, some of which will 
change.  We  will  continue  to  state  possible  outcomes  as  high  and  low  ranges  which  are  intended  to  provide  a  sensitivity 
analysis as variables are changed but are not intended to imply that actual results could not fall outside of the suggested 
ranges. The principal reason that we release guidance is to provide a basis for our management to discuss our business outlook 
with analysts and investors. We do not accept any responsibility for any projections or reports published by any such third 
parties. 

Guidance is necessarily speculative in nature, and it can be expected that some or all of the assumptions underlying 
the guidance furnished by us will not materialize or will vary significantly from actual results. Accordingly, our guidance is 
only  an  estimate  of  what  management  believes  is  realizable  as  of  the  date  of  release.  Actual  results  may  vary  from  our 
guidance and the variations may be material. In light of the foregoing, investors are urged not to rely upon our guidance in 
making an investment decision regarding our common stock. 

Any failure to successfully implement our operating strategy or the occurrence of any of the events or circumstances 
set forth in this “Risk Factors” section in this Annual Report on Form 10-K could result in the actual operating results being 
different from our guidance and the differences may be adverse and material. 

• 

Insiders  and  principal  stockholders  will  likely  have  significant  influence  over  matters  requiring  stockholder
approval. 

Our directors, executive officers, and other principal stockholders beneficially own, in the aggregate, a substantial 
amount  of  our  outstanding  common  stock.  These  stockholders  could  likely  have  significant  influence  over  all  matters 
requiring stockholder approval, including the election of directors and approval of significant corporate transactions such as 
a merger or other sale of our company or its assets. 

•  The market price of our common stock may continue to be volatile. 

The market price of our common stock has been, and is likely to continue to be, volatile and subject to fluctuations. 
Changes in the stock market generally or as it concerns our industry, as well as geopolitical, economic, and business factors 
unrelated to us, may also affect our stock price. Significant declines in the market price of our common stock or failure of the 
market price to increase could harm our ability to recruit and retain key employees, reduce our access to debt or equity capital, 
and otherwise harm our business or financial condition. In addition, we may not be able to use our common stock effectively 
as consideration in connection with any future acquisitions. 

- 23 - 

 
 
 
•  Anti-takeover provisions in our charter documents and under Delaware law could discourage, delay, or prevent a 

change in control of our company and may affect the trading price of our common stock. 

Provisions in our amended and restated certificate of incorporation and bylaws may have the effect of delaying or 
preventing a change of control or changes in our management. Our amended and restated certificate of incorporation and 
amended and restated bylaws include provisions that: 

• 

• 

• 

• 

• 

• 
• 

• 
• 

authorize our Board of Directors to issue, without further action by the stockholders, up to 10,000,000 shares
of undesignated preferred stock; 
require that any action to be taken by our stockholders be effected at a duly called annual or special meeting
and not by written consent; 
specify that special meetings of our stockholders can be called only by our Board of Directors, the chairman 
of the board, the chief executive officer, or the president; 
establish an advance notice procedure for stockholder approvals to be brought before an annual meeting of our
stockholders, including proposed nominations of persons for election to our Board of Directors; 
establish that our Board of Directors is divided into three classes, Class I, Class II, and Class III, with each
class serving staggered terms; 
provide that our directors may be removed only for cause; 
provide that vacancies on our Board of Directors may be filled only by a majority vote of directors then in
office, even though less than a quorum; 
specify that no stockholder is permitted to cumulate votes at any election of directors; and 
require a super-majority of votes to amend certain of the above mentioned provisions. 

In  addition,  we  are  subject  to  the  provisions  of  Section  203  of  the  Delaware  General  Corporation  Law  regulating 
corporate  takeovers.  Section  203  generally  prohibits  us  from  engaging  in  a  business  combination  with  an  interested 
stockholder subject to certain exceptions. 

Item 1B — Unresolved Staff Comments 

None 

Item 2 — Properties 

We lease approximately 170,000 square feet of space in San Leandro, California for product manufacturing, research 
and development, and executive headquarters under a lease that expires in November of 2019. We believe that this facility 
will be adequate for our purposes for the foreseeable future. Additionally, we lease offices near Dublin, Ireland; Dubai, United 
Arab Emirates; Shanghai, Peoples Republic of China; and Houston, Texas. 

Item 3 — Legal Proceedings 

See Note 16, “Litigation,” of the Notes to Consolidated Financial Statements in Part II, Item 8, “Financial Statements 
and Supplementary Data,” of this Annual Report on Form 10-K, which is incorporated by reference into this Item 3, for a 
description of the lawsuits pending against us. 

Item 4 — Mine Safety Disclosures 

Not applicable. 

- 24 - 

 
 
 
PART II 

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

Market Information 

Our common stock is quoted on the NASDAQ Stock Market under the symbol “ERII.” The following table sets forth 

the high and low intra-day sales prices of our common stock for the periods indicated. 

2017 

2016 

High 

Low 

High 

Low 

First Quarter .........................................................................  $

Second Quarter .....................................................................  $

Third Quarter ........................................................................  $

Fourth Quarter ......................................................................  $

11.46    $
8.77    $
8.43    $
11.30    $

7.11  
7.11  
6.13  
7.48  

  $
  $
  $
  $

10.82    $
13.35    $
16.67    $
16.30    $

5.28  
7.77  
8.35  
8.53  

Stockholders 

As of December 31, 2017, there were approximately 31 stockholders of record of our common stock as reported by 
our transfer agent, one of which is Cede & Co., a nominee for Depository Trust Company (“DTC”). All of the shares of 
common stock held by brokerage firms, banks, and other financial institutions as nominees for beneficial owners are deposited 
into participant accounts at DTC and are therefore considered to be held of record by Cede & Co. as one stockholder. 

Dividend Policy 

We  have  never  declared  or  paid  any  dividends  on  our  common  stock,  and  we  do  not  currently  intend  to  pay  any 
dividends on our common stock for the foreseeable future. Any future determination to pay dividends on our common stock 
will be, subject to applicable law, at the discretion of our Board of Directors, and will depend upon, among other factors, our 
results of operations, financial condition, capital requirements, and contractual restrictions in loan or other agreements. 

Stock Repurchase Program 

In  March  2017,  our  Board  of  Directors  authorized  a  stock  repurchase  program  under  which  the  Company,  at  the 
discretion of management, could repurchase up to $15.0 million in aggregate cost of our outstanding common stock through 
September  30,  2017  (the  “March  2017  Authorization”).  At  December  31,  2017,  541,177  shares,  at  an  aggregate  cost  of 
$4.3  million,  had  been  repurchased  under  the  March  2017  Authorization.  The  March  2017  Authorization  expired  in 
September 2017 and there was no repurchase authorization in place at December 31, 2017. 

In  January 2016, our  Board of Directors  authorized  a  stock repurchase program  under  which  the  Company,  at  the 
discretion of management, could repurchase up to $6.0 million in aggregate cost of our outstanding common stock through 
June  30,  2016  (the  “January  2016  Authorization”).  In  May  2016,  our  Board  of  Directors  rescinded  the  January  2016 
Authorization and authorized a new stock repurchase program under which the Company, at the discretion of management, 
could repurchase up to $10.0 million in aggregate cost of our outstanding common stock through October 31, 2016 (the “May 
2016 Authorization”). At December 31, 2016, 673,700 shares, at an aggregate cost of $4.1 million, had been repurchased 
under the January 2016 Authorization and 568,500 shares, at an aggregate cost of $5.3 million, had been repurchased under 
the May 2016 Authorization. The May 2016 Authorization expired in October 2016 and there was no repurchase authorization 
in place at December 31, 2016.  

On March 7, 2018, our Board of Directors authorized a stock repurchase program under which the Company, at the 
discretion of management, may repurchase up to $10.0 million in aggregate cost of the our outstanding common stock. Under 
the newly authorized repurchase program, purchases of shares of common stock may be made from time to time in the open 
market, or in privately negotiated transactions, in compliance with applicable state and federal securities laws. The timing 
and amounts of any purchases will be based on market conditions and other factors including price, regulatory requirements, 

- 25 - 

 
  
  
  
  
  
  
and capital availability. The share buyback program does not obligate us to acquire any specific number of shares in any 
period, and may be expanded, extended, modified or discontinued at any time without prior notice. 

Sales of Unregistered Securities 

None 

Stock Performance Graph 

The following graph shows the cumulative total stockholder return of an investment of $100 on December 31, 2012 
in (i) our common stock, (ii) the NASDAQ Composite Index, and (iii) common stock of a selected group of peer issuers 
(“Peer Group”). Cumulative total return assumes the reinvestment of dividends, although dividends have never been declared 
on our stock, and is based on the returns of the component companies weighted according to their capitalizations as of the 
end of each quarterly period. The NASDAQ Composite Index tracks the aggregate price performance of equity securities 
traded  on  the  NASDAQ.  The  Peer  Group  tracks  the  weighted  average  price  performance  of  equity  securities  of  seven 
companies in our industry: Consolidated Water Co. Ltd.; Flowserve Corp.; Hyflux Ltd., Kurita Water Industries Ltd.; Pentair 
PLC; Tetra Tech, Inc.; and The Gorman-Rupp Company. The return of each component issuer of the Peer Group is weighted 
according to the respective issuer’s stock market capitalization at the end of each period for which a return is indicated. Our 
stock price performance shown in the graph below is not indicative of future stock price performance. 

The following graph and its related information is not “soliciting material,” is not deemed “filed” with the Securities 
and Exchange Commission, and is not to be incorporated by reference into any filing of the Company under the Securities 
Act of 1933, as amended or the Securities Exchange Act of 1934, as amended, whether made before or after the date hereof 
and irrespective of any general incorporation language contained in such filing. 

COMPARISON OF FIVE-YEAR CUMULATIVE TOTAL RETURN * 
Among Energy Recovery Inc., The NASDAQ Composite Index, 
And A Peer Group 

* 

Graph represents the value of $100 invested on December 31, 2012 in stock or index, including reinvestment of dividends as of the year
ending December 31. 

12/31/2012 

12/31/2013 

12/31/2014 

12/31/2015 

12/31/2016 

12/31/2017 

Energy Recovery, Inc. ...........   $ 

100.00 

   $

163.24  

   $ 

155.00 

   $

207.94 

   $ 

304.41 

   $

NASDAQ Composite Index ..  
Peer Group ............................  

100.00 
100.00 

141.58 
146.43 

162.13 
124.45 

173.35 
98.15 

187.34 
116.14 

257.35 

242.49 
135.56 

- 26 - 

 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
Item 6 — Selected Financial Data 

The following selected financial data should be read in conjunction with Part II, Item 7, “Management’s Discussion 
and Analysis of Financial Condition and Results of Operations,” and Part II, Item 8, “Financial Statements and Supplementary 
Data,” included in this Annual Report on Form 10-K. 

2017 

Years Ended December 31, 
2015 
(In thousands, except per share amounts) 

2014 

2016 

2013 

Consolidated Statements of Operations Data: 
Product revenue ............................................................   $ 
Product cost of revenue .................................................     
Product gross profit ...................................................     

58,156    $ 
19,061      
39,095      

49,715    $ 
17,849      
31,866      

43,671    $ 
19,111      
24,560      

30,426    $ 
13,713      
16,713      

43,045  
17,323  
25,722  

License and development revenue ................................     

5,000      

5,000      

1,042      

—      

—  

Operating expenses: 

General and administrative ........................................     
Sales and marketing ..................................................     
Research and development ........................................     
Amortization of intangible assets ..............................     
Restructuring charges ................................................     
Total operating expenses .......................................     
Income (loss) from operations .......................................     
Other income (expense), net..........................................     
Income (loss) before income taxes ................................     
(Benefit from) provision for income taxes ....................     
Net income (loss) ..........................................................   $ 

Income (loss) per share: 

17,354      
9,391      
13,443      
631      
—      
40,819      
3,276      
680      
3,956      
(8,394)     
12,350    $ 

16,626      
9,116      
10,136      
631      
—      
36,509      
357      
287      
644      
(390)     
1,034    $ 

19,773      
9,326      
7,659      
635      
—      
37,393      
(11,791)     
(181)     
(11,972)     
(334)     
(11,638)   $ 

14,139      
10,525      
9,690      
842      
—      
35,196      
(18,483)     
69      
(18,414)     
291      
(18,705)   $ 

15,192  
7,952  
4,361  
921  
184  
28,610  
(2,888) 
109  
(2,779) 
327  
(3,106) 

Basic ..........................................................................   $ 
Diluted ......................................................................   $ 

0.23    $ 
0.22    $ 

0.02    $ 
0.02    $ 

(0.22)   $ 
(0.22)   $ 

(0.36)   $ 
(0.36)   $ 

(0.06) 
(0.06) 

Number of shares used in per share calculation: 

Basic ..........................................................................     
Diluted ......................................................................     

53,701      
55,612      

52,341      
55,451      

52,151      
52,151      

51,675      
51,675      

51,066  
51,066  

2017 

2016 

As of December 31, 
2015 
(In thousands) 

2014 

2013 

Consolidated Balance Sheets Data: 
Cash and cash equivalents .............................................   $ 
Short-term investments .................................................     
Long-term investments..................................................     
Total assets ....................................................................     
Long-term liabilities ......................................................     
Total liabilities ..............................................................     
Total stockholders’ equity .............................................     

27,780    $ 
70,020      
—      
161,744      
59,380      
79,213      
82,531      

61,364    $ 
39,073      
—      
149,063      
66,772      
83,930      
65,133      

99,931    $ 
257      
—      
151,799      
72,116      
88,140      
63,659      

15,501    $ 
13,072      
267      
85,941      
4,501      
16,023      
69,918      

14,371  
5,856  
13,694  
101,935  
4,338  
15,020  
86,915  

- 27 - 

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

The following Management Discussion and Analysis of Financial Condition and Results of Operations is intended to 
help  the  reader  understand  our  results  of  operations  and  financial  condition.  It  should  be  read  in  conjunction  with  the 
Consolidated Financial Statements and related Notes included in Part II, Item 8, “Financial Statements and Supplementary 
Data,” in this Annual Report on Form 10-K. 

Overview 

Energy Recovery, Inc. and its wholly-owned subsidiaries (the “Company,” “Energy Recovery,” “our,” “us,” and “we”) 
is an energy solutions provider to industrial fluid flow markets worldwide. Our core competencies are fluid dynamics and 
advanced material science. Our products make industrial processes more operating and capital expenditure efficient. Our 
solutions  convert  wasted  pressure  energy  into  a  reusable  asset  and  preserve  or  eliminate  pumping  technology  in  hostile 
processing environments. Our solutions are marketed and sold in fluid flow markets, such as water, oil & gas, and chemical 
processing,  under  the  trademarks  ERI®,  PX®,  Pressure  Exchanger®,  PX  Pressure  Exchanger®,  AT™,  AquaBold™,  VorTeq™, 
IsoBoost®, and IsoGen®. Our solutions are owned, manufactured, and/or developed, in whole or in part, in the U.S. and Ireland. 

Our reportable operating segments consist of the Water and the Oil & Gas segments. These segments are based on the 
industries in which the technology solutions are sold, the type of energy recovery device or other technology sold, and the 
related solution and service. 

Water Segment 

Our Water segment consists of revenues and expenses associated with solutions sold for use in seawater, brackish, and 
wastewater reverse osmosis desalination. Our Water segment revenue is principally derived from the sale of energy recovery 
devices (“ERDs”); however, we also derive revenue from the sale of our high-pressure and circulation pumps, which we 
manufacture and sell in connection with our ERDs for use in desalination plants. Additionally, we receive revenue from the 
sale of spare parts and services, including start-up and commissioning services that we provide for our customers. 

Oil & Gas Segment 

Our  Oil  &  Gas  segment  consists  of  revenues  and  expenses  associated  with  solutions  sold  or  licensed  for  use  in 
hydraulic fracturing, gas processing, and chemical processing. In the past several years, we have invested significant research 
and development costs to expand our business into pressurized fluid flow industries within the oil & gas industry. 

Results of Operations 

2017 Compared to 2016 

Total Revenue 

For the Year Ended December 31, 

2017 

2016 

$ 

% of Total 
Revenue 

$ 

% of Total 
Revenue 

$ Change 

   % Change 

(In thousands, except for percentages) 

Product revenue ....................   $
License and development 

revenue ..............................  

Total revenue ....................  $

58,156    

92 %    $

49,715    

91%    $ 

8,441    

5,000    
63,156    

8 %    
100 %    $

5,000    
54,715    

9%    
100%    $ 

—    
8,441    

17% 

—% 

15% 

- 28 - 

 
  
  
  
    
  
  
  
  
  
  
 
 
 
Product Revenue by Segment 

For the Year Ended December 31, 

2017 

2016 

$ Change 

   % Change 

(In thousands, except for percentages) 

Water ..........................................................................................     $ 
Oil & Gas ...................................................................................     

Total product revenue .............................................................    $ 

54,301    $
3,855    
58,156    $

47,545    $
2,170    
49,715    $

6,756    
1,685    
8,441    

14% 

78% 

17% 

Water segment product revenue increased in 2017, compared to 2016, due primarily to higher mega-project (“MPD”) 
sales of $5.6 million and original equipment manufacturer (“OEM”) sales of $1.3 million, partially offset by lower aftermarket 
sales of $0.1 million. 

Oil  &  Gas  segment  product  revenue,  increased  in  2017,  compared  to  2016,  due  primarily  to  the  percentage-of-
completion revenue recognition associated with the sale of multiple IsoBoost systems, partially offset by revenue adjustments 
of $0.3 million. 

A limited number of our customers account for a substantial portion of our product revenue in the Water segment. 
Revenue from customers representing 10% or more of product revenue varies from period to period. For the year ended 
December 31, 2017, no customer represent 10% or more of the Company’s product revenue. For the years ended December 
31, 2016 and 2015, one customer, the same customer in both years, represented 11% and 14% of the Company’s product 
revenues, respectively. See Note 13, “Geographical Information and Concentrations,” of the Notes to Consolidated Financial 
Statements  in  Part  II,  Item  8,  “Financial  Statements  and  Supplementary  Data,”  of  this  Annual  Report  on  Form  10-K  for 
further details on customer concentration. 

Product revenue attributable to domestic and international sales as a percentage of total product revenue is presented 

in the following table. 

Domestic revenue ..................................................................................................................................  

International revenue .............................................................................................................................  

Total product revenue ........................................................................................................................  

License and Development Revenue 

For the Year Ended December 31, 

2017 

2016 

3 %    
97 %    

100 %    

2% 

98% 

100% 

For the Year Ended December 31, 

2017 

2016 

$ Change 

  % Change 

(In thousands, except for percentages) 

License and development revenue ..............................................  

  $

5,000     $

5,000     $ 

—    

—% 

In October 2015, through our subsidiary ERI Energy Recovery Ireland Ltd., we entered into a license agreement with 
the VorTeq Licensee (“VorTeq License Agreement”), an international customer. The VorTeq License Agreement has a term 
of 15-years for the exclusive, worldwide right to use our VorTeq technology for hydraulic fracturing onshore operations. The 
VorTeq  License  Agreement  includes  $125.0  million  in  payments  paid  in  stages:  a  $75.0  million  upfront,  exclusivity  fee 
payment and two separate $25.0 million payments upon successful achievement of two milestone tests. Following product 
commercialization, the VorTeq License Agreement includes recurring royalty payments throughout the 15-year term. The 
initial upfront fee of $75.0 million is recognized on a straight-line basis over the 15-year term of the arrangement based on 
the performance period of the last or final deliverables, which include the license and support. There has been no change in 
the rate of revenue recognition of the VorTeq License Agreement in 2017, as compared to 2016. 

- 29 - 

 
  
  
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
Product Gross Profit and Margin 

Year Ended December 31, 2017 

Year Ended December 31, 2016 

Water 

   Oil & Gas 

Total 

Water 

   Oil & Gas 

Total 

(In thousands, except for percentages) 

Product gross profit ............   $

Product gross margin ..........  

38,269 

  $
70.5%    

  $
826  
21.4 %    

39,095 

  $
67.2%    

31,192 

  $
65.6%    

  $
674 
31.1%    

31,866 

64.1% 

Product gross profit represents  our  product revenue  less  our  product  cost  of  revenue. Our product  cost of  revenue 
consists primarily of raw materials, personnel costs (including stock-based compensation), manufacturing overhead, warranty 
costs, depreciation expense, and manufactured components. 

Product gross profit increased in 2017 compared to 2016, due primarily to increased Water segment sales volume and 

favorable price and mix and increased Oil & Gas segment sales volume. 

Product gross margin increased in 2017 compared to 2016, due primarily to increased Water segment favorable price 
and mix, and operational efficiencies, partially offset by higher Oil & Gas segment project costs and revenue adjustments of 
$0.3 million. 

Operating Expenses 

For the Year Ended December 31, 

2017 

2016 

$ 

% of Total 
Revenue 

$ 

% of Total 
Revenue 

$ Change 

   % Change 

(In thousands, except for percentages) 

Total revenue ...................................  $

63,156    

100%    $

54,715    

100%    $ 

8,441    

15% 

Operating expenses: 

General and administrative ...........  $

Sales and marketing .....................  

Research and development ...........  

Amortization of intangible assets .  

Total operating expenses ...........  $

17,354    
9,391    
13,443    
631    
40,819    

27%    $
15%    
21%    
1%    
65%    $

16,626    
9,116    
10,136    
631    
36,509    

30%    $ 
17%    
19%    
1%    
67%    $ 

728    
275    
3,307    
—    
4,310    

4% 

3% 

33% 

—% 

12% 

General and Administrative 

General and administrative expense increased in 2017, compared to 2016, due primarily to higher employee-related 
compensation and benefits of $0.5 million, facility costs of $0.4 million and other costs of $0.3 million, partially offset by 
lower  professional  and  legal  costs  of  $0.5  million.  Employee-related  compensation  and  benefits  included  an  increase  in 
compensation of $0.3 million and stock-based compensation of $0.2 million. 

Sales and Marketing 

Sales  and  marketing  expense  increased  in  2017,  compared  to  2016,  due  primarily  to  higher  employee-related 
compensation and benefits of $0.4 million and higher professional services of $0.1 million, partially offset by lower marketing 
and  other  costs  of  $0.2  million.  Employee-related  compensation  and  benefits  included  an  increase  in  commissions  of 
$0.3  million  and  stock-based  compensation  of  $0.3  million,  partially  offset  by  lower  compensation  and  incentive 
compensation of $0.2 million. 

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Research and Development 

Research and development expense increased in 2017, compared to 2016, due primarily to higher employee-related 
compensation and benefits of $1.6 million, direct research and development project costs of $1.5 million and other costs of 
$0.2 million. Employee-related compensation and benefits included an increase in compensation of $1.4 million and stock-
based compensation of $0.3 million, partially offset by lower incentive compensation of $0.1 million. 

Amortization of Intangible Assets 

Amortization of intangible assets is related to finite-lived intangible assets acquired as a result of our purchase of Pump 
Engineering, LLC in December 2009. There was no material change in our amortization amounts in 2017, compared to 2016. 

Other Income (Expense), net 

For the Year Ended December 31, 

2017 

2016 

$ 

% of Total 
Revenue 

$ 

% of Total 
Revenue 

$ Change 

% Change 

(In thousands, except for percentages) 

Total revenue .....................  $

63,156    

100% 

  $

54,715 

100% 

  $

8,441  

15% 

Other income (expense): 

Interest income ...............  $

Interest expense ..............  
Other non-operating 
expense, net ..................  

Total other income 
(expense), net ..............  $

870    
(2)    

(188)    

1% 

  $

—% 

—% 

309 

(3)    

(19)    

1% 

  $

—% 

—% 

561  
1  

182% 

(33%) 

(169 )    

889% 

680    

1% 

  $

287 

1% 

  $

393  

137% 

Total other income (expense), net increased in 2017, compared to 2016, due primarily to interest income on higher 
investment balances and by a favorable disposition of foreign currency in the prior year, partially offset by higher bank fees 
related to our higher investment balance in 2017 and unfavorable foreign currency exchange, both reported in Other non-
operating income (expense). 

Income Taxes 

Our  income  tax  benefit  was  $8.4  million  for  the  year  ended  December  31,  2017  compared  to  a  tax  benefit  of 

$0.4 million for the year ended December 31, 2016. 

The tax benefit of $8.4 million for the year ended December 31, 2017, consisted of a net $10.1 million U.S. federal 
and state deferred tax benefit after taking into consideration a valuation allowance release on all but $1.4 million of our U.S. 
federal and state deferred tax assets, less a valuation allowance for the Irish deferred tax assets of $1.3 million less U.S. 
federal, state and foreign current tax expense of $0.4 million. See Note 9, “Income Taxes,” of the Notes to Consolidated 
Financial Statements in Part II, Item 8, “Financial Statements and Supplementary Data,” of this Annual Report on Form 10-
K for a discussion of our valuation allowances. 

The tax benefit of $0.4 million for the year ended December 31, 2016, consisted of $7.0 million benefit related to 
losses in our Ireland subsidiary which was partially offset by tax expense of $0.3 million related to the deferred tax effects 
associated with the amortization of goodwill and other taxes. 

U.S. Tax Cuts and Jobs Act  

On December 22, 2017, President Trump signed into law the U.S. Tax Cuts and Jobs Act (the “Tax Act”), which 
significantly changes existing U.S. tax laws that will affect 2017, including, but not limited to, (1) requiring companies to 
pay  a  one-time  deemed  repatriation  tax  on  certain  unrepatriated  earnings  of  foreign  subsidiaries;  (2)  remeasurement  of 

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deferred tax assets and liabilities at the new 21% tax rate; and (3) bonus depreciation that will allow for full expensing of 
qualified property.  

The Tax Act also establishes new tax laws that will affect 2018, including, but not limited to, (1) a reduction in the 
corporate tax rate from 35% to 21%; (2) eliminating the corporate alternative minimum tax (“AMT”) and changing how 
existing AMT credits can be realized; (3) the creation of the base erosion anti-abuse tax (“BEAT”), a new minimum tax; (4) 
a general elimination of U.S. federal income taxes on dividends from foreign subsidiaries; (5) a new provision designed to 
tax global intangible low-taxed income, which allows for the possibility of using foreign tax credits (“FTCs”) and a deduction 
of up to 50% to offset the income tax liability (subject to some limitations); (6) a new limitation on deductible interest expense; 
(7)  limitations  on  the  deductibility  of  certain  executive  compensation;  (8)  limitations  on  the  use  of  FTCs  to  reduce  the 
U.S. income tax liability; and (9) limitations on net operating losses (“NOLs”) generated after December 31, 2017 to 80% of 
taxable income. 

The SEC staff issued Staff Accounting Bulletin (“SAB”) No. 118 (“SAB 118”) which provides guidance on accounting 
for the tax effects of the Tax Act. SAB 118 provides a measurement period that should not extend beyond one year from the 
Tax Act enactment date for companies to complete the accounting under Accounting Standards Codification (“ASC”) No. 740 
(“ASC 740”), Income Taxes.  In accordance with SAB 118, a company must reflect the income tax effects of those aspects 
of the Tax Act for which the accounting under ASC 740 is complete. To the extent that a company’s accounting for certain 
income tax effects of the Tax Act is incomplete but it is able to determine a reasonable estimate, it must record a provisional 
estimate in the financial statements. If a company cannot determine a provisional estimate to be included in the financial 
statements, it should continue to apply ASC 740 on the basis of the provisions of the tax law that were in effect immediately 
before the enactment of the Tax Act. As of December 31, 2017, our accounting for the income tax effects of the Tax Act was 
completed; however, it is possible that our accounting will be refined as tax authorities issue further guidance in how to apply 
the law which may require updates to our tax expense for the 2017 tax year.  Therefore, we did not record any provisional 
estimates in 2017 

As a result of enactment of the Tax Act, we incurred a one-time income tax expense during the fourth quarter of 2017 
of $7.0 million related to $21.0 million of deemed repatriation of accumulated foreign earnings, of which $0.3 million is a 
cash charge and the remaining $6.7 million represents a non-cash discrete tax expense largely from the utilization of net 
operating loss carryovers. We will continue to review and refine this amount as additional guidance is provided on the taxation 
of deemed repatriation income through the filing of the 2017 U.S. federal income tax return. We plan to use our net operating 
loss  carryforwards  to  settle  this  additional  income  tax  expense.  We  also  incurred  a  non-cash  income  tax  expense  of 
$2.5 million related to the remeasurement of certain deferred tax assets and liabilities based on the recently enacted rates from 
the Tax Act. 

We continue to evaluate the impact of the tax law changes related to state income taxes, the new income tax provisions 
related to global intangible low-taxed income and deductions related to foreign derived intangible income. We continue to 
assert  that  the  accumulated  foreign  earnings  are  permanently  reinvested.  We  should  have  no  U.S.  federal  income  tax 
obligation should we decide in the future to repatriate accumulated foreign earnings. Given the uncertainty of current foreign 
and state tax laws, we have not estimated what the future foreign or state income tax impact will be if we decide to repatriate 
accumulate foreign earnings in the future.  

We continue to evaluate the impact the Tax Act will have on the Consolidated Financial Statements. We expect the 
Tax Act to favorably impact our net income, diluted earnings per share, and cash flows in future periods, due primarily to the 
reduction in the federal corporate tax rate from 35% to 21% effective for periods beginning January 1, 2018. See Note 9, 
“Income  Taxes,”  of  the  Notes  to  Consolidated  Financial  Statements  in  Part  II,  Item  8,  “Financial  Statements  and 
Supplementary Data,” of this Annual Report on Form 10-K for a discussion of our income tax accounting related to the Tax 
Act. 

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2016 Compared to 2015  

Total Revenue 

Product revenue .................  $
License and development 
revenue .............................  

Total revenue .................  $

Product Revenue 

For the Year Ended December 31, 

2016 

2015 

$ 

% of Total 
Revenue 

$ 

% of Total 
Revenue 

$ Change 

% Change 

(In thousands, except for percentages) 

49,715    

91% 

  $

43,671    

98% 

  $

6,044    

5,000    
54,715    

9% 

100% 

  $

1,042    
44,713    

2% 

100% 

  $

3,958    
10,002    

14% 

380% 

22% 

For the Year Ended December 31, 

2016 

2015 

$ Change 

% Change 

(In thousands, except for percentages) 

Water .................................................................................    $ 
Oil & Gas ..........................................................................   

Total product revenue ....................................................    $ 

47,545 
2,170  
49,715 

  $

  $

43,530  
141  
43,671  

  $ 

  $ 

4,015 
2,029  
6,044 

9% 

1439% 

14% 

The increase in Water segment product revenue was primarily due to higher MPD, OEM, and aftermarket shipments 
in  2016,  as  compared  to  2015.  The  increase  in  our  Water  segment  product  revenue  was  primarily  due  to  MPD  sales  of 
$1.9 million, OEM sales of $1.2 million and aftermarket sales of $0.9 million. 

The  increase  in  Oil  &  Gas  segment  product  revenue  was  primarily  due  to  the  percentage-of-completion  revenue 
recognition associated with the sale of multiple IsoBoost systems of $2.2 million. The increase was offset by $0.2 million 
related to the commissioning of an IsoGen system and the cancellation of a purchase order for an IsoBoost in early 2015. 

Product revenue attributable to domestic and international sales as a percentage of total product revenue is presented 

in the following table. 

Domestic revenue .................................................................................................................................  

International revenue ............................................................................................................................  

Total product revenue .......................................................................................................................  

For the Year Ended December 31, 

2016 

2015 

2%    
98%    
100%    

7% 

93% 

100% 

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License and Development Revenue 

For the Year Ended December 31, 

2016 

2015 

$ Change 

% Change 

(In thousands, except for percentages) 

License and development revenue ..........................................    $ 

5,000 

  $

1,042 

  $

3,958 

380% 

License  and  development  revenue  relate  solely  to  our  VorTeq  License  Agreement.  The  increase  in  license  and 
development revenue in 2016, compared to 2015, was due to the recognition of a full year of amortization of the deferred 
revenue compared to a partial year of amortization in 2015. 

Product Gross Profit and Margin 

Year Ended December 31, 2016 

Year Ended December 31, 2015 

Water 

   Oil & Gas 

Total 

   Water 

   Oil & Gas 

Total 

(In thousands, except for percentages) 

Product gross profit .......................  $

Product gross margin .....................  

31,192 

  $
66%    

674 
  $
31%    

31,866 

  $

64% 

24,485 

  $
56%    

75 
  $
53%    

24,560 

56% 

Product gross profit increased in 2016, compared to 2015, due primarily to increased sales volume, favorable product 

price and mix, and increased operational efficiencies. 

Operating Expenses 

For the Year Ended December 31, 

2016 

2015 

$ 

% of Total 
Revenue 

$ 

% of Total 
Revenue 

$ Change 

   % Change 

(In thousands, except for percentages) 

Total revenue ...................................  $

54,715    

100%    $

44,713     

100%    $

10,002    

22% 

Operating expenses: 

General and administrative ...........  $

Sales and marketing .....................  

Research and development ...........  

Amortization of intangible assets .  

Total operating expenses ...........  $

16,626    
9,116    
10,136    
631    
36,509    

30%    $
17%    
19%    
1%    
67%    $

19,773     
9,326     
7,659     
635     
37,393     

44%    $
21%    
17%    
1%    
84%    $

(3,147)    
(210)    
2,477    
(4)    
(884)    

(16%) 

(2%) 

32% 

(1%) 

(2%) 

____________ 

(1)  

Percents may not add up to total due to rounding. 

General and Administrative 

General and administrative expense decreased in 2016, compared to 2015, due primarily to lower professional, legal, 
and  other  administrative  costs  of  $2.1  million  and  stock-based  compensation  expense  of  $1.1  million.  Stock-based 
compensation expense was $2.1 million and $3.1 million for the years ended December 31, 2016 and 2015, respectively. The 
decrease  in  stock-based  compensation  is  primarily  related  to  the  decrease  of  non-recurring  expenses  associated  with  the 
accelerated vesting and modification of options in connection with the resignation of the former Chief Executive Officer in 
the first quarter of 2015. 

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Sales and Marketing 

Sales  and  marketing  expense  decreased  in  2016,  compared  to  2015,  due  primarily  to  lower  compensation,  sales 
commissions,  and  employee-related  compensation  of  $0.4  million,  partially  offset  by  an  increase  related  to  bonuses  of 
$0.2 million. Stock-based compensation expense was $0.5 million and $0.4 million for the years ended December 31, 2016 
and 2015, respectively. 

Research and Development 

Research  and  development  expense  increased  in  2016,  compared  to  2015,  due  primarily  to  direct  research  and 
development project costs associated with new product initiatives of $1.2 million and compensation and employee-related 
benefits  of  $1.2  million.  Stock-based  compensation  expense  was  $0.6  million  and  $0.4  million  for  the  years  ended 
December 31, 2016 and 2015, respectively. 

Amortization of Intangible Assets 

Amortization of intangible assets is related to finite-lived intangible assets acquired as a result of our purchase of Pump 
Engineering, LLC in December 2009. There was no material change in our amortization amounts in 2016, compared to 2015. 

Other Income (Expense), net 

For the Year Ended December 31, 

2016 

2015 

$ 

% of Total 
Revenue 

$ 

% of Total 
Revenue 

$ Change 

   % Change 

(In thousands, except for percentages) 

Total revenue ........................   $

54,715    

100%    $

44,713    

100%    $

10,002    

22% 

Other income (expense): 

Interest income ..................  $

Interest expense .................  
Other non-operating 
expense, net .....................  

Total other income 
(expense), net .................  $

309    
(3)    

(19)    

287    

1%    $
—%    

53    
(42)    

—%    $
—%    

—%    

(192)    

—%    

256    
39    

173    

483% 

(93%) 

(90%) 

1%    $

(181)    

—%    $

468    

(259%) 

Total other income (expense), net was income in 2016, compared to expense in 2015. The increase in Total other 
income (expense), net was due primarily to interest income on higher cash and investment balances; lower interest expense; 
the favorable disposition of foreign currency options; and favorable foreign currency exchange. 

Income Taxes 

Our  income  tax  benefit  was  $0.4  million  for  the  year  ended  December  31,  2016  compared  to  a  tax  benefit  of 
$0.3 million for the year ended December 31, 2015. The tax benefit of $0.4 million for the year ended December 31, 2016, 
consisted of $0.7 million tax benefit related to the losses in our Ireland subsidiary which was partially offset by tax expense 
of $0.3 million related to the deferred tax effects associated with the amortization of goodwill and other taxes. 

The tax benefit of $0.3 million for the year ended December 31, 2015, consisted of $0.6 million benefit related to the 
losses in our Ireland subsidiary which was partially offset by tax expense of $0.3 million related to the deferred tax effects 
associated with the amortization of goodwill and other taxes. 

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Liquidity and Capital Resources 

Overview 

Historically,  our  primary  source  of  cash  to  fund  our  operations  and  capital  expenditures  has  been  proceeds  from 
customer payments for our products and services and the issuance of common stock. As of December 31, 2017, we have 
issued  common  stock  for  aggregate  net  proceeds  of  $100.3  million,  excluding  common  stock  issued  in  exchange  for 
promissory notes. 

As of December 31, 2017, our principal sources of liquidity consisted of unrestricted cash and cash equivalents of 
$27.8 million that are primarily invested in money market funds; short-term investments of $70.0 million that are primarily 
invested in marketable debt securities; and accounts receivable, net of allowances of $12.5 million. We invest cash not needed 
for current operations predominantly in high-quality, investment-grade, marketable debt instruments with the intent to make 
such funds available for operating purposes as needed. 

As of December 31, 2017, our unrestricted cash, cash equivalents and short-term investments held outside the U.S. 
was $50.8 million. Our intent has been to reinvest the earnings of foreign subsidiaries indefinitely outside the U.S. to fund 
both organic growth and acquisitions. On December 22, 2017, the Tax Act was enacted into law. This new law includes a 
provision that imposes a transition tax on foreign earnings whether or not such earnings are repatriated to the U.S. In light of 
this new tax, we are reviewing our prior position on the reinvestment of the earnings of our foreign subsidiaries outside of 
the U.S. No decision on repatriation has been made at this time. 

At December 31, 2017 and 2016, we had $1.4 million and $0.2 million, respectively, of short-term unbilled receivables. 
In the Water segment, we have unbilled receivables pertaining to customer contractual holdback provisions, whereby we will 
invoice  the  final  retention  payment(s)  due  under  certain  sales  contracts  in  the  next  12  months.  The  customer  holdbacks 
represent  amounts  intended  to  provide  a  form  of  security  for  the  customer;  accordingly,  these  receivables  have  not  been 
discounted to present value. In the Oil & Gas segment, we had estimated earnings in excess of billings, net of unbilled project 
costs,  of  $4.2  million  at  December  31,  2017.  See  Note  4,  “Other  Financial  Information,”  of  the  Notes  to  Consolidated 
Financial Statements in Part II, Item 8, “Financial Statements and Supplementary Data,” of this Annual Report on Form 10-
K for additional information about our cost and estimated earnings on uncompleted contracts. 

Loan Agreements 

On January 27, 2017, we entered into a loan and pledge agreement (the “Loan and Pledge Agreement”) with a financial 
institution.  The  Loan  and  Pledge  Agreement  provides  for  a  committed  revolving  credit  line  of  $16.0  million  and  an 
uncommitted revolving credit line of $4.0 million. Under the Loan and Pledge Agreement, we are allowed to borrow and 
request letters of credit against the eligible assets held from time to time in the pledged account maintained with the financial 
institution. Revolving loans incur interest per annum at a base rate equal to the LIBOR rate plus 1.5%. Any default bears the 
aforementioned interest rate plus an additional 2%. The unused portion of the credit line is subject to a fee equal to the product 
of  0.2%  per  annum  multiplied  by  the  difference,  if  positive,  between  $16.0  million  and  the  average  daily  balance  of  all 
advances under the committed facility plus aggregate average daily undrawn amounts of all letters of credit issued under the 
committed  facility  during  the  immediately  preceding  month  or  portion  thereof.  We  are  subject  to  certain  financial  and 
administrative covenants under the Loan and Pledge Agreement. As of December 31, 2017, we were in compliance with 
these covenants. See Note 7, “Long-term Debt and Lines of Credit,” of the Notes to Consolidated Financial Statements in 
Part  II,  Item  8,  “Financial  Statements  and  Supplementary  Data,”  of  this  Annual  Report  on  Form  10-K  for  additional 
information about our loan agreement. 

Stand-by Letters of Credit 

At December 31, 2017, we have stand-by letters of credit with various financial institutions totaling $10.4 million 
whereby we are required to maintain a restricted cash balance of $2.8 million and U.S. investment balance of $7.7 million. 
Stand-by letters of credit at are subject to fees based on the amount of the letter of credit, that are payable quarterly and are 
non-refundable. See Note 7, “Long-term Debt and Lines of Credit,” of the Notes to Consolidated Financial Statements in 

- 36 - 

 
Part  II,  Item  8,  “Financial  Statements  and  Supplementary  Data,”  of  this  Annual  Report  on  Form  10-K  for  additional 
information about our stand-by letters of credit arrangements. 

Share Repurchases 

Our Board of Directors has authorized share repurchases since 2012 through September 30, 2017. In March 2017, our 
Board of Directors authorized repurchases of $15.0 million that expired in September 2017. Through this 2017 program, we 
repurchased 541,177 shares for $4.3 million. At December 31, 2017, we did not have a board authorized share repurchase 
program in effect. Since the initial authorization of the share repurchase programs, we have spent an aggregate $20.4 million, 
excluding commissions, to repurchase 4,262,833 shares. 

On March 7, 2018, our Board of Directors authorized a stock repurchase program under which the Company, at the 
discretion of management, may repurchase up to $10.0 million in aggregate cost of the our outstanding common stock. Under 
the newly authorized repurchase program, purchases of shares of common stock may be made from time to time in the open 
market, or in privately negotiated transactions, in compliance with applicable state and federal securities laws. The timing 
and amounts of any purchases will be based on market conditions and other factors including price, regulatory requirements, 
and capital availability. The share buyback program does not obligate us to acquire any specific number of shares in any 
period, and may be expanded, extended, modified or discontinued at any time without prior notice. 

In addition to repurchases under our repurchase program, during 2017, we spent $0.3 million to settle employee tax 
withholding obligations due upon the vesting of restricted stock units and withheld an equivalent value of shares from the 
shares provided to the employees upon vesting. See Note 10, “Stockholder’s Equity,” of the Notes to Consolidated Financial 
Statements  in  Part  II,  Item  8,  “Financial  Statements  and  Supplementary  Data,”  of  this  Annual  Report  on  Form  10-K  for 
additional information about our share repurchase programs. 

Cash Flows 

Our cash flows are presented in the following table. 

Net cash provided by operating activities ................................................................  $

Net cash (used in) provided by investing activities .................................................  

Net cash provided by (used in) financing activities .................................................  

Effect of exchange rate differences on cash and cash equivalents ...........................  

Years Ended December 31, 

2017 

2016 

2015 

(In thousands) 

2,895    $
(37,373)    
951    
(57)    

4,965    $
(40,706)    
(2,785)    
(41)    

69,055 
14,018 
1,374 

(17) 

Net change in cash and cash equivalents ..............................................................  $

(33,584)    $

(38,567)    $

84,430 

Cash Flows from Operating Activities 

Cash provided by operating activities is generated by net income (loss) adjusted for certain non-cash items and changes 

in assets and liabilities. 

Cash provided by operating activities was lower in 2017, compared to 2016, by $2.1 million, due primarily to higher 
non-cash  used  for  deferred  income  tax  adjustment  of  $8.4  million  and  cash  used  for  operating  assets  and  liabilities 
of $6.8 million, partially offset by higher net income of $11.3 million and a benefit of other non-cash adjustments related to 
operating activities of $1.8 million. 

Cash provided by operating activities was lower in 2016, compared to 2015, by $64.1 million, due primarily to one-
time cash received from the VorTeq Licensee of $75.0 million in 2015, lower benefit of non-cash adjustments related to 
operating activities of $1.1 million and a cash benefit from other operating assets and liabilities of $0.6 million, partially 
offset by net income of $1.0 million in 2016, compared to a net loss of $11.6 million in 2015. 

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Net changes of cash used for assets and liabilities of $9.1 million in 2017 were primarily attributable to a $5.0 million 
decrease in deferred revenue due to the recognition of revenue related to our exclusive license agreement, a $3.2 million 
increase  in  cost  and  estimated  billings  related  to  a  percentage-of-completion  revenue  recognition  project,  a  $2.0  million 
increase in accounts receivable and unbilled receivables due to timing of invoices and payments, a $1.3 million increase in 
inventories  due  to  increased  production,  and  a  $0.5  million  decrease  in  product  deferred  revenue,  partially  offset  by  a 
$2.5 million increase in accounts payable and accrued expenses and other liabilities, and a $0.4 million increase in taxes 
payable. 

Net changes of cash used for assets and liabilities of $2.3 million in 2016 were primarily attributable to a $5.0 million 
decrease in deferred revenue due to the recognition of revenue related to our exclusive license agreement, a $1.8 million 
increase  in  cost  and  estimated  billings  related  to  a  percentage-of-completion  revenue  recognition  project,  a  $0.4  million 
increase  in  prepaid  expenses  and  other  assets,  and  a  $0.4  million  decrease  in  accounts  payable,  partially  offset  by  a 
$2.3 million decrease in inventories due to increased shipments, a $1.5 million decrease in accounts receivable and unbilled 
receivables due to timing of invoices and payments, a $1.2 million increase in accrued expenses and other liabilities, and a 
$0.3 million increase in product deferred revenue. 

Net changes of cash provided from assets and liabilities of $73.3 million in 2015 were primarily attributable to the 
receipt of a $75.0 million exclusive license payment, of which $1.0 million was recognized as revenue and the remainder 
deferred, a $2.0 million decrease in inventories related to increased shipments, a $0.3 million increase in product deferred 
revenue,  and  a  $0.3  million  decrease  in  prepaid  expenses  and  other  assets,  partially  offset  by  a  $1.7  million  litigation 
settlement payment, a $0.9 million increase in accounts receivable and unbilled receivables related to increased shipments, 
and a $0.7 million decrease in accrued expenses and other liabilities related to decrease legal expenses and litigation matters. 

Cash Flows from Investing Activities 

Cash flows from investing activities primarily relate to maturities and purchases of marketable securities to preserve 
principal and liquidity while at the same time maximizing yields without significantly increasing risk, capital expenditures to 
support our growth, and changes in our restricted cash used to collateralize our stand-by letters of credit and other contingent 
considerations. 

Cash used in 2017 was primarily attributable to $80.6 million used to purchase investments and $7.4 million for capital 
expenditures. These were offset by $49.1 million in maturities of marketable security investments and $1.5 million increase 
in restricted cash related to additional stand-by letters of credit. 

Cash used in 2016 was primarily attributable to $46.6 million used to purchase investments, $1.1 million for capital 
expenditures, and a $0.6 million increase in restricted cash related to additional stand-by letters of credit. These were offset 
by $7.5 million in maturities of marketable security investments. 

Cash  provided  in  2015  was  primarily  attributable  to  $12.9  million  in  maturities  of  investments  and  the  release  of 
$1.7 million of restricted cash related to the expiration of stand-by letters of credit. These were offset by the use of $0.6 million 
for capital expenditures. 

Cash Flows from Financing Activities 

Net cash provided in 2017 was primarily due to $5.5 million received from the issuance of common stock related to 
stock option exercises, partially offset by the use of $4.2 million to repurchase our common stock and $0.3 million used for 
taxes paid related to net share settlement of equity awards. 

Net cash used in 2016 was primarily due to the use of $9.4 million to repurchase our common stock, partially offset 

by $6.6 million received from the issuance of common stock related to option exercises. 

Net cash provided in 2015 was primarily due to $1.3 million received from the issuance of common stock related to 

option and warrant exercises and $0.1 million of proceeds from long-term debt. 

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Liquidity and Capital Resource Requirements 

We believe that our existing resources and cash generated from our operations will be sufficient to meet our anticipated 
capital requirements for at least the next 12 months. However, we may need to raise additional capital or incur additional 
indebtedness to continue to fund our operations or to support acquisitions in the future and/or fund investments in our latest 
technology arising from rapid market adoption that could require us to seek additional equity or debt financing. Our future 
capital requirements will depend on many factors, including the continuing market acceptance of our products, our rate of 
revenue growth, the timing of new product introductions, the expansion of our research and development, manufacturing, 
and sales and marketing activities, the timing and extent of our expansion into new geographic territories, and the amount 
and timing of cash used for stock repurchases. In addition, we may enter into potential material investments in, or acquisitions 
of, complementary businesses, services, or technologies in the future, which could also require us to seek additional equity 
or debt financing. Should we need additional liquidity or capital funds, these funds may not be available to us on favorable 
terms, or at all. 

Contractual Obligations 

We lease facilities and equipment under fixed non-cancellable operating leases that expire on various dates through 
2021. Additionally, in the course of our normal operations, we have entered into cancellable purchase commitments with our 
suppliers for various key raw materials and component parts. The purchase commitments covered by these arrangements are 
subject to change based on our sales forecasts for future deliveries. 

The following is a summary of our contractual obligations as of December 31, 2017. 

Payments Due by Period 

1 Year 

2-3 Years 

4-5 Years 

5+ Years 

Total 

(In thousands) 

Operating leases .............................................  $
Loan payable ..................................................  

Purchase obligations (1) ....................................  

$

1,788    $
11    
4,454    

6,253    $

1,715    $ 
16    
—    

1,731    $ 

34     $ 
—    
—    

34     $ 

—    $
—    
—    

—    $

3,537 
27 
4,454 

8,018 

____________ 

(1)   Purchase obligations are related to open purchase orders for materials and supplies. 

This table excludes agreements with guarantees or indemnity provisions that we have entered into with customers and 
others in the ordinary course of business. Based on our historical experience and information known to us as of December 31, 
2017, we believe that our exposure related to these guarantees and indemnities as of December 31, 2017 was not material. 

Off-Balance Sheet Arrangements 

During the periods presented, we did not have any relationships with unconsolidated entities or financial partnerships 
such as entities often referred to as structured finance or special purpose entities, which would have been established for the 
purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. 

Critical Accounting Policies and Estimates 

Our  Consolidated  Financial  Statements  are  prepared  in  accordance  with  generally  accepted  accounting  principles 
(“GAAP”) in the United States. These accounting principles require us to make estimates and judgments that can affect the 
reported  amounts  of  assets  and  liabilities  as  of  the  date of  the  Consolidated  Financial Statements  as  well  as  the  reported 
amounts of revenue and expense during the periods presented. We believe that the estimates and judgments upon which we 
rely are reasonable based upon information available to us at the time that we make these estimates and judgments. To the 
extent that there are material differences between these estimates and actual results, our consolidated financial results will be 
affected. The accounting policies that reflect our more significant estimates and judgments and which we believe are the most 

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critical  to  aid  in  fully  understanding  and  evaluating  our  reported  financial  results  are  revenue  recognition,  including 
percentage-of-completion accounting for oil & gas projects; allowance for doubtful accounts; allowance for product warranty; 
valuation of stock options; valuation and impairment of goodwill and acquired intangible assets; valuation adjustments for 
excess  and  obsolete  inventory;  deferred  taxes  and  valuation  allowances  on  deferred  tax  assets;  and  evaluation  and 
measurement of contingencies, including contingent consideration. 

The following is not intended to be a comprehensive list of all of our accounting policies or estimates. Our accounting 
policies are more fully described in Note 1, “Description of Business and Significant Accounting Policies” of the Notes to 
Consolidated Financial Statements in Part II, Item 8, “Financial Statements and Supplementary Data,” of this Annual Report 
on Form 10-K. 

Revenue Recognition 

Product and service revenue recognition – Water Segment 

We recognize revenue when the earnings process is complete, as evidenced by a written agreement with the customer, 
transfer of title, fixed pricing that is determinable, and collection that is reasonably assured. Transfer of title typically occurs 
upon shipment of the equipment pursuant to a written purchase order or contract. The portion of the sales agreement related 
to the field services and training for commissioning of our devices in a desalination plant is deferred until we have performed 
such  services.  We  regularly  evaluate  our  revenue  arrangements  to  identify  deliverables  and  to  determine  whether  these 
deliverables are separable into multiple units of accounting. 

Under our revenue recognition policy, evidence of an arrangement is met when we have an executed purchase order, 
sales order, or stand-alone contract. Typically, smaller projects utilize sales or purchase orders that conform to standard terms 
and conditions. 

The specified product performance criteria for our PX ERD pertain to the ability of our product to meet its published 
performance specifications and warranty provisions, which our products have demonstrated on a consistent basis. This factor, 
combined with historical performance metrics, provides our management with a reasonable basis to conclude that the PX 
ERDs will perform satisfactorily upon commissioning of the plant. To ensure this successful product performance, we provide 
service consisting principally of supervision of customer personnel and training to the customers during the commissioning 
of the plant. The installation of the PX ERDs is relatively simple, requires no customization, and is performed by the customer 
under the supervision of our personnel. We defer the value of the service and training component of the contract and recognize 
such revenue as services are rendered. Based on these factors, we have concluded that, for sale of PX ERDs, as well as for 
turbochargers and pumps, delivery and performance have been completed upon shipment or delivery when title transfers 
based on the shipping terms. 

We perform an evaluation of customer credit worthiness on an individual contract basis to assess whether collectability 
is  reasonably  assured.  As  part  of  this  evaluation,  we  consider  many  factors  about  the  individual  customer,  including  the 
underlying financial  strength  of  the  customer  and/or  partnership  consortium  and  management’s prior history  or  industry-
specific knowledge about the customer and its supplier relationships. For smaller projects, we require the customer to remit 
payment generally within 30 to 90 days after product delivery. In some cases, if credit worthiness cannot be determined, 
prepayment or other security is required. 

We establish separate units of accounting for contracts, as our contracts with customers typically include one or both 

of the deliverables, products or commissioning, and there is no right of return under the terms of the contract. 

Commissioning includes supervision of the installation, start-up, and training to ensure that the installation performed 
by the customer, which is relatively simple and straightforward, is completed consistent with the recommendations under the 
factory warranty. The commissioning services’ element of our contracts represents an incidental portion of the total contract 
price. The allocable consideration for these services relative to that for the underlying products has been well under 1% of 
any  arrangement.  Commissioning  is  often  bundled  into  the  large  stand-alone  contracts,  and  we  frequently  sell  products 

- 40 - 

 
without commissioning since our product can be easily installed in a plant without supervision. These facts and circumstances 
validate that the delivered element has value on a stand-alone basis and should be considered a separate unit of accounting. 

Having established separate units of accounting, we then allocate amounts to each unit of accounting. With respect to 
products, we have established vendor specific objective evidence (“VSOE”) based on the price at which such products are 
sold separately without commissioning services. With respect to commissioning, we charge out our engineers for field visits 
to customers based on a stand-alone standard daily field service charge as well as a flat service rate for travel, if applicable. 
This has been determined to be the VSOE of the service based on stand-alone sales of other comparable professional services 
at consistent pricing. 

The amount allocable to the delivered unit of account (in our case the product) is limited to the amount that is not 
contingent upon the delivery of additional items or meeting specified performance conditions. We adhere to consistent pricing 
in both stand-alone sale of products and professional services and the contractual pricing of products and commissioning of 
services in bundled arrangements. 

For  large  projects,  stand-alone  contracts  are  utilized.  For  these  contracts,  consistent  with  industry  practice,  our 
customers  typically  require  their  suppliers,  including  Energy  Recovery,  to  accept  contractual  holdback  provisions  (also 
referred to as a retention payment) whereby the final amounts due under the sales contract are remitted over extended periods 
of time or alternatively, stand-by letters of credit are issued to guarantee performance. These retention payments are generally 
10% or less of the total contract amount and are due and payable when the customer is satisfied that certain specified product 
performance criteria have been met upon commissioning of the desalination plant, which may be up to 24 months from the 
date of product delivery as described further below. 

Under MPD stand-alone contracts, the usual payment arrangements are summarized as follows: 

• 

• 

• 

an advance payment due upon execution of the contract, typically 10% to 20% of the total contract amount.
This advance payment is accounted for as deferred revenue until shipment or when products are delivered to
the customer, depending on the Incoterms and transfer of title; 

a payment ranging from 50% to 70% of the total contract is typically due upon shipment of the product. This
payment is often divided into two parts. The first part, which is due 30 to 60 days following delivery of the
product and documentation, is invoiced upon shipment when the product revenue is recognized and results in
an open accounts receivable with the customer. The second part is typically due 90 to 120 days following
product delivery and documentation. This payment is booked to unbilled receivables upon shipment when the 
product revenue is recognized, and it is invoiced to the customer upon notification that the equipment has
been received or when the time period has expired. We have no performance obligation to complete to be
legally entitled to this payment. It is invoiced based on the passage of time. 

a final retention payment of generally 10% or less of the contract amount is due either at the completion of
plant commissioning or upon the issuance of a stand-by letter of credit, which is typically issued up to 24 
months  from  the  delivery  date  of  products  and  documentation.  This  payment  is  recorded  to  unbilled
receivables upon shipment when the product revenue is recognized, and it is invoiced to the customer when it
is determined that commissioning is complete or the stand-by letter of credit has been issued. This payment is
not contingent upon the delivery of commissioning services. We have no performance obligation to complete
to be legally entitled to this payment. It is invoiced based on the passage of time. 

We do not provide our customers with a right of product return; however, we will accept returns of products that are 
deemed to be damaged or defective when delivered that are covered by the terms and conditions of the product warranty. 
Product returns have not been significant. 

Shipping and handling charges billed to customers are included in product revenue. The cost of shipping to customers 

is included in cost of revenue. 

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License, milestone payment, and royalty revenue recognition – Oil & Gas Segment 

License  and  development  revenue  is  comprised  of  the  amortization  of  the  upfront  non-refundable  $75.0  million 
exclusivity fee received in connection with the VorTeq License Agreement. See Note 15, “VorTeq Partnership and License 
Agreement,” of the Notes to Consolidated Financial Statements in Part II, Item 8, “Financial Statements and Supplementary 
Data,” of this Annual Report on Form 10-K. The VorTeq License Agreement comprises a 15-year exclusivity license for our 
VorTeq  technology,  milestone  payments  upon  achievement  of  successful  tests  in  accordance  with  the  Key  Performance 
Indicators  (“KPIs”)  and,  after  commercialization  is  achieved,  royalty  payments  for  the  supply  and  servicing  of  certain 
components of the VorTeq. All payments are non-refundable. 

We  recognize  license  and  development  revenue  in  accordance  with  Accounting  Standards  Codification  (“ASC”) 
No. 605 (“ASC 605”), “Revenue Recognition” subtopic ASC 605-25 “Revenue with Multiple Element Arrangements” and 
subtopic  ASC  605-28  “Revenue  Recognition-Milestone  Method,”  which  provides  accounting  guidance  for  revenue 
recognition for arrangements with multiple deliverables and guidance on defining the milestone and determining when the 
use of the milestone method of revenue recognition is appropriate, respectively. 

For  multiple-element  arrangements,  each  deliverable  is  accounted  for  as  a  separate  unit  of  accounting  if  both  the 
following criteria are met: (1) the delivered item or items have value to the customer on a standalone basis and (2) for an 
arrangement that includes a general right of return relative to the delivered item(s), delivery or performance of the undelivered 
item(s) is considered probable and substantially in our control. Contingent deliverables within multiple element arrangements 
are excluded from the evaluation of the units of accounting. Non-refundable, upfront license fees where we have continuing 
obligation  to  perform  are  recognized  over  the  period  of  the  continuing  performance  obligation.  The  VorTeq  License 
Agreement was determined to include a single unit of accounting. The initial upfront fee of $75.0 million is recognized on a 
straight-line basis over the 15-year term of the arrangement based on the performance period of the last or final deliverables, 
which include the license and support. 

We recognize revenue from milestone payments when: (i) the milestone event is substantive and its achievability has 
substantive uncertainty at the inception of the agreement, and (ii) it does not have ongoing performance obligations related 
to the achievement of the milestone earned. Milestone payments are considered substantive if all of the following conditions 
are met, the milestone payment: (a) is commensurate with either the Company’s performance subsequent to the inception of 
the arrangement to achieve the milestone or the enhancement of the value of the delivered item or items as a result of a 
specific outcome resulting from the Company’s performance subsequent to the inception of the arrangement to achieve the 
milestone; (b) relates solely to past performance; and (c) is reasonable relative to all of the deliverables and payment terms 
(including other potential milestone consideration) within the arrangement. The VorTeq License Agreement includes two 
substantive milestones of $25.0 million each due on achievement of successful tests in accordance with KPIs. No revenues 
associated with achievement of the milestones have been recognized to date. 

Percentage-of-completion revenue recognition – Oil & Gas Segment 

IsoBoost and IsoGen systems are highly engineered, customized solutions that are designed and manufactured over an 
extended period of time and are built specifically to meet a customer’s specifications. It is our position that percentage-of-
completion method of accounting is appropriate for IsoBoost and IsoGen systems given the facts and circumstances of these 
projects. In the event that a purchase order for an IsoBoost or IsoGen does not meet  these facts and circumstances, then 
percentage-of-completion method of accounting does not apply. 

Revenue from fixed price contracts is recognized using the percentage-of-completion method of accounting in the ratio 
of  costs  incurred  to  estimated  final  costs.  Contract  costs  include  all  direct  material  and  labor  costs  related  to  contract 
performance.  Pre-contract  costs  with  no  future  benefit  are  expensed  in  the  period  in  which  they  are  incurred.  Since  the 
financial reporting of these contracts depends on estimates, which are assessed continually during the term of the contract, 
recognized revenues and profit are subject to revisions as the contract progresses to completion. Revisions in profit estimates 
are reflected in the period in which the facts that give rise to the revisions become known. If material, the effects of any 
changes in estimates are disclosed in the notes to the consolidated financial statements. When estimates indicate that a loss 

- 42 - 

 
will be incurred on a contract, a provision for the expected loss is recorded in the period in which the loss becomes evident. 
No loss has been incurred to date. Revenue is recognized only to the extent costs have been recognized in the same period. 

Allowances for Doubtful Accounts 

We  record  a  provision  for  doubtful  accounts  based  on  historical  experience  and  a  detailed  assessment  of  the 
collectability of our accounts receivable. In estimating the allowance for doubtful accounts, we consider, among other factors, 
the aging of the accounts receivable, our historical write-offs, the credit worthiness of each customer, and general economic 
conditions. Account balances are charged off against the allowance when we believe that it is probable that the receivable 
will not be recovered. Actual write-offs may be in excess of our estimated allowance. 

Warranty Costs 

We sell products with a limited warranty for a period ranging from 18 months to 5 years. We accrue for warranty costs 
based on estimated product failure rates, historical activity, and expectations of future costs. Periodically, we evaluate and 
adjust the warranty costs to the extent that actual warranty costs vary from the original estimates. 

Stock-based Compensation 

We measure and recognize stock-based compensation expense based on the fair value measurement for all stock-based 
awards  made  to  our  employees  and  directors  —  including  restricted  stock  units  (“RSUs”),  restricted  shares  (“RS”),  and 
employee stock options — over the requisite service period (typically the vesting period of the awards). The fair value of 
RSUs and RS is based on our stock price on the date of grant. The fair value of stock options is calculated on the date of grant 
using the Black-Scholes option pricing model, which requires a number of complex assumptions including expected life, 
expected  volatility,  risk-free interest  rate,  and dividend  yield.  The  estimation  of  awards  that  will  ultimately  vest  requires 
judgment,  and  to  the  extent  that  actual  results  or  updated  estimates  differ  from  our  current  estimates,  such  amounts  are 
recorded  as  a  cumulative  adjustment  in  the  period  in  which  the  estimates  are  revised.  See  Note  11,  “Stock-based 
Compensation,”  of  the  Notes  to  Consolidated  Financial  Statements  in  Part  II,  Item  8,  “Financial  Statements  and 
Supplementary Data,” of this Annual Report on Form 10-K for further discussion of stock-based compensation. 

Goodwill and Other Intangible Assets 

The purchase price of an acquired company is allocated between intangible assets and the net tangible assets of the 
acquired business with the residual purchase price recorded as goodwill. The determination of the value of the intangible 
assets acquired involves certain judgments and estimates. These judgments can include, but are not limited to, the cash flows 
that an asset is expected to generate in the future and the appropriate weighted average cost of capital. 

Acquired intangible assets with determinable useful lives are amortized on a straight-line or accelerated basis over the 
estimated periods benefited, ranging from one to 20 years. Acquired intangible assets with contractual terms are amortized 
over  their  respective  legal  or  contractual  lives.  Customer  relationships  and  other  non-contractual  intangible  assets  with 
determinable lives are amortized over periods ranging from five to 20 years. 

We evaluate the recoverability of intangible assets by comparing the carrying amount of an asset to estimated future 
net undiscounted cash flows generated by the asset. If such assets are considered to be impaired, the impairment recognized 
is measured as the amount by which the carrying amount of the assets exceeds the fair value of the assets. The evaluation of 
recoverability involves estimates of future operating cash flows based upon certain forecasted assumptions, including, but 
not limited to, revenue growth rates, gross profit margins, and operating expenses over the expected remaining useful life of 
the related asset. A shortfall in these estimated operating cash flows could result in an impairment charge in the future. 

Goodwill is not amortized, but is evaluated annually for impairment at the reporting unit level or when indicators of a 
potential impairment are present. We estimate the fair value of the reporting unit using the discounted cash flow and market 
approaches. Forecast of future cash flows are based on our best estimate of future net sales and operating expenses, based 
primarily on expected category expansion, pricing, market segment, and general economic conditions. 

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As  of  December  31,  2017  and  2016,  acquired  intangibles,  including  goodwill,  relate  to  the  acquisition  of  Pump 
Engineering,  LLC  during  the  fourth  quarter  of  2009.  See  Note  6,  “Goodwill  and  Intangible  Assets,”  of  the  Notes  to 
Consolidated Financial Statements in Part II, Item 8, “Financial Statements and Supplementary Data,” of this Annual Report 
on Form 10-K for further discussion of intangible assets. 

Inventories 

Inventories  are  stated  at  the  lower  of  cost  (using  the  first-in,  first-out  “FIFO”  method)  or  market.  We  calculate 
inventory valuation adjustments for excess and obsolete inventory based on current inventory levels, movement, expected 
useful lives, and estimated future demand of the products and spare parts. 

Income Taxes 

Current and non-current tax assets and liabilities are based upon an estimate of taxes refundable or payable for each of 
the jurisdictions in which the Company is subject to tax. In the ordinary course of business, there is inherent uncertainty in 
quantifying income tax positions. We assess income tax positions and record tax benefits for all years subject to examination 
based upon the Company’s evaluation of the facts, circumstances, and information available at the reporting dates. For those 
tax positions where it is more likely than not that a tax benefit will be sustained, we record the largest amount of tax benefit 
with a greater than 50% likelihood of being realized upon ultimate settlement with a taxing authority that has full knowledge 
of all relevant information. For those income tax positions where it is not  more likely than not that a tax benefit will be 
sustained, no  tax  benefit  is  recognized  in  the  financial  statements. When  applicable,  associated  interest  and penalties  are 
recognized as a component of income tax expense. Accrued interest and penalties are included within the related tax asset or 
liability on the Consolidated Balance Sheets. 

Deferred income taxes are provided for temporary differences arising from differences in bases of assets and liabilities 
for tax and financial reporting purposes. Deferred income taxes are recorded on temporary differences using enacted tax rates 
in effect for the year in which the temporary differences are expected to reverse. The effect of a change in tax rates on deferred 
tax assets and liabilities is recognized in income in the period that includes the enactment date. Deferred tax assets are reduced 
by a valuation allowance when, in the opinion of management, it is more likely than not that some portion or all of the deferred 
tax assets will not be realized. Significant judgment is required in determining whether and to what extent any valuation 
allowance is needed on the Company’s deferred tax assets. In making such a determination, we consider all available positive 
and negative evidence including recent results of operations, scheduled reversals of deferred tax liabilities, projected future 
income, and available tax planning strategies. See Note 9, “Income Taxes,” of the Notes to Consolidated Financial Statements 
in Part II, Item 8, “Financial Statements and Supplementary Data,” of this Annual Report on Form 10-K for further discussion 
of the tax valuation allowance. 

On December 22, 2017, President Trump signed into law the Tax Act, which significantly changes existing U.S. tax 
laws. Following the enactment of the Tax Act, the SEC staff issued SAB 118, which provides guidance on accounting for the 
tax effects of the Tax Act. SAB 118 provides a measurement period that should not extend beyond one year from the Tax 
Act enactment date for companies to complete the accounting under ASC 740. In accordance with SAB 118, a company must 
reflect the income tax effects of those aspects of the Tax Act for which the accounting under ASC 740 is complete. To the 
extent that a company’s accounting for certain income tax effects of the Tax Act is incomplete but it is able to determine a 
reasonable  estimate,  it  must  record  a  provisional  estimate  in  the  financial  statements.  If  a  company  cannot  determine  a 
provisional  estimate  to  be  included  in  the  financial  statements,  it  should  continue  to  apply  ASC  740  on  the  basis  of  the 
provisions  of  the  tax  law  that  were  in  effect  immediately  before  the  enactment  of  the  Tax  Act.  We  did  not  record  any 
provisional estimates in 2017. See Note 9, “Income Taxes,” of the Notes to Consolidated Financial Statements in Part II, 
Item 8, “Financial Statements and Supplementary Data,” of this Annual Report on Form 10-K for a discussion of our income 
tax accounting related to the Tax Act. 

Our operations are subject to income and transaction taxes in the U.S. and in foreign jurisdictions. Significant estimates 
and judgments are required in determining our worldwide provision for income taxes. Some of these estimates are based on 
interpretations of existing tax laws or regulations. The ultimate amount of tax liability may be uncertain as a result. 

- 44 - 

 
Recent Accounting Pronouncements 

See  Note  2,  “Recent  Accounting  Pronouncements,”  of  the  Notes  to  Consolidated  Financial  Statements  in  Part  II, 
Item 8, “Financial Statements and Supplementary Data,” of this Annual Report on Form 10-K regarding the impact of certain 
recent accounting pronouncements on our Consolidated Financial Statements. 

Item 7A — Quantitative and Qualitative Disclosures About Market Risk 

Foreign Currency Risk 

The  majority  of  our  revenue  contracts  have  been  denominated  in  U.S.  Dollars  (“USD”).  The  amount  of  revenue 

recognized in foreign currencies during the years ended December 31, 2017, 2016 and 2015 were not material. 

As  we  expand  our  international  sales,  we  expect  that  a  portion  of  our  revenue  could  be  denominated  in  foreign 
currencies. As  a result, our  cash  and  cash  equivalents  and  operating  results  could be  increasingly  affected by  changes in 
exchange rates. Our international sales and service operations incur expense that is denominated in foreign currencies. This 
expense could be materially affected by currency fluctuations. Our exposures are to fluctuations in exchange rates for USD 
versus the British Pound, Saudi Riyal, United Arab Emirates Dirham, Euro, Chinese Yuan and Canadian Dollar. Changes in 
currency  exchange  rates  could  adversely  affect  our  consolidated  operating  results  or  financial  position.  Additionally,  our 
international sales and services operations maintain cash balances denominated in foreign currencies. To decrease the inherent 
risk associated with translation of foreign cash balances into our reporting currency, we do not maintain excess cash balances 
in foreign currencies. We have not hedged our exposure to changes in foreign currency exchange rates because expenses in 
foreign currencies have been insignificant to date, and exchange rate fluctuations have had little impact on our operating 
results and cash flows. 

Interest Rate Risk and Credit Risk 

We  have  an  investment  portfolio  of  fixed-income  marketable  debt  securities,  including  amounts  classified  as  cash 
equivalents  and  short-term  investments.  The  primary  objective  of  our  investment  activities  is  to  preserve  principal  and 
liquidity while at the same time maximizing yields without significantly increasing risk. We invest primarily in investment-
grade  short-term  debt  instruments  of  high-quality  corporate  issuers  and  the  U.S.  government  and  its  agencies.  These 
investments are subject to counterparty credit risk. To minimize this risk, we invest pursuant to a Board-approved investment 
policy.  The  policy  mandates  high  credit  rating  requirements  and  restricts  our  exposure  to  any  single  corporate  issuer  by 
imposing concentration limits. 

Our  investment  portfolio  includes  fixed  income  marketable  debt  securities,  including  amounts  classified  as  cash 
equivalents and short-term investments. At December 31, 2017, all of our investments were classified as short-term, with 
maturity dates less than 12 months, and totaled approximately $70.3 million. These investments were presented in Cash and 
cash equivalents and Short-term investments on our Consolidated Balance Sheets in 2017. These investments are subject to 
interest rate fluctuations and will decrease in market value if interest rates increase. To minimize the exposure due to adverse 
shifts  in  interest  rates,  we  maintain  investments  with  an  average  maturity  of  less  than  seven  months.  A  hypothetical  1% 
increase in interest rates would have resulted in an approximately $0.5 million decrease in the fair value of our fixed-income 
debt securities as of December 31, 2017. 

- 45 - 

 
 
 
 
 
 
 
 
 
 
Item 8 — Financial Statements and Supplementary Data 

Consolidated Financial Statements: 

Reports of Independent Registered Public Accounting Firm .........................................................................................  
Consolidated Balance Sheets — December 31, 2017 and 2016 .....................................................................................  
Consolidated Statements of Operations — Years ended December 31, 2017, 2016 and 2015 .......................................  
Consolidated Statements of Comprehensive Income (Loss) — Years ended December 31, 2017, 2016 and 2015 .......  
Consolidated Statements of Stockholders’ Equity — Years ended December 31, 2017, 2016 and 2015 ......................  
Consolidated Statements of Cash Flows — Years ended December 31, 2017, 2016 and 2015 .....................................  
Notes to Consolidated Financial Statements ..................................................................................................................  

47 
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50 
51 
52 
53 
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Page No. 

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 

Stockholders and Board of Directors 
Energy Recovery, Inc. 
San Leandro, California 

Opinion on the Consolidated Financial Statements 

We  have  audited  the  accompanying  consolidated  balance  sheets  of  Energy  Recovery,  Inc.  (the  “Company”)  and 
subsidiaries as of December 31, 2017 and 2016, the related consolidated statements of operations, comprehensive income 
(loss), stockholders’ equity, and cash flows for each of the three years in the period ended December 31, 2017 and the related 
notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements 
present fairly, in all material respects, the financial position of the Company and subsidiaries at December 31, 2017 and 2016, 
and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2017, in 
conformity with accounting principles generally accepted in the United States of America. 

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 (“COSO”) and our report dated March 8, 2018 expressed an unqualified opinion thereon. 

Basis for Opinion 

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to 
express an opinion on the Company’s 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 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. 

/s/ BDO USA, LLP 

We have served as the Company’s auditor since 2007. 

San Jose, California 
March 8, 2018  

- 47 - 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 

Stockholders and Board of Directors 
Energy Recovery, Inc. 
San Leandro, California 

Opinion on the Internal Control over Financial Reporting 

We  have  audited  Energy  Recovery,  Inc.’s  (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 (the “COSO criteria”). In our opinion, the Company maintained, 
in  all  material  respects,  effective  internal  control  over  financial  reporting  as  of  December  31,  2017,  based  on  the  COSO 
criteria. 

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United 
States) (“PCAOB”), consolidated balance sheets of the Company and subsidiaries as of December 31, 2017 and 2016, the 
related consolidated statements of operations, comprehensive income (loss), stockholders’ equity, and cash flows for each of 
the three years in the period ended December 31, 2017, and the related notes and our report dated March 8, 2018 expressed 
an unqualified opinion thereon. 

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  “Item  9A, 
Management’s  Report  on  Internal  Control  over  Financial  Reporting  and  Attestation  Report  of  the  Registered  Public 
Accounting Firm”. 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  U.S.  federal  securities  laws  and  the  applicable  rules  and  regulations  of  the 
Securities and Exchange Commission and the PCAOB.  

We conducted our audit of internal control over financial reporting 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 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. 

/s/ BDO USA, LLP 
San Jose, California 
March 8, 2018 

- 48 - 

 
ENERGY RECOVERY, INC. 

CONSOLIDATED BALANCE SHEETS 

December 31, 

2017 

2016 

(In thousands, except share data and par value) 

Current assets: 

ASSETS 

Cash and cash equivalents .......................................................................................................................................   $ 

27,780 

   $ 

Restricted cash .........................................................................................................................................................  

Short-term investments ............................................................................................................................................  

Accounts receivable, net of allowance for doubtful accounts of $103 and $130 at December 31, 2017 and 

2016, respectively ..................................................................................................................................................  

Unbilled receivables, current ...................................................................................................................................  

Cost and estimated earnings in excess of billings ...................................................................................................  

Inventories ................................................................................................................................................................  

Prepaid expenses and other current assets ...............................................................................................................  

2,664 

70,020 

12,465 

1,413 

4,998 

5,514 

1,342 

Total current assets ................................................................................................................................................  

126,196 

Restricted cash, non-current ........................................................................................................................................  

Deferred tax assets, non-current ..................................................................................................................................  

Property and equipment, net ........................................................................................................................................  

Goodwill.......................................................................................................................................................................  

Other intangible assets, net ..........................................................................................................................................  

Other assets, non-current .............................................................................................................................................  

182 

7,902 

13,393 

12,790 

1,269 

12 

61,364 

2,297 

39,073 

11,759 

190 

1,825 

4,550 

1,311 

122,369 

2,087 

1,270 

8,643 

12,790 

1,900 

4 

Total assets .............................................................................................................................................................   $ 

161,744 

   $ 

149,063 

Current liabilities: 

LIABILITIES AND STOCKHOLDERS’ EQUITY 

Accounts payable .....................................................................................................................................................   $ 

4,091 

   $ 

Accrued expenses and other current liabilities ........................................................................................................  

Income taxes payable ...............................................................................................................................................  

Accrued warranty reserve ........................................................................................................................................  

Deferred revenue, current ........................................................................................................................................  

Current portion of long-term debt............................................................................................................................  

Total current liabilities...........................................................................................................................................  

Long-term debt, less current portion ...........................................................................................................................  

Deferred tax liabilities, non-current .............................................................................................................................  

Deferred revenue, non-current .....................................................................................................................................  

Other non-current liabilities .........................................................................................................................................  

Total liabilities .......................................................................................................................................................  

Commitments and Contingencies (Note 8) 

Stockholders’ equity: 

Preferred stock, $0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at December 31, 
2017 and 2016 ..........................................................................................................................................................  

Common stock, $0.001 par value; 200,000,000 shares authorized; 58,168,433 shares issued and 53,905,600 

shares outstanding at December 31, 2017 and 56,884,207 shares issued and 53,162,551 shares outstanding at 
December 31, 2016 ..................................................................................................................................................  

Additional paid-in capital ............................................................................................................................................  

Accumulated comprehensive loss ................................................................................................................................  

Treasury stock, at cost, 4,262,833 shares repurchased at December 31, 2017 and 3,721,656 shares repurchased at 
December 31, 2016 ..................................................................................................................................................  

Accumulated deficit .....................................................................................................................................................  

Total stockholders’ equity ........................................................................................................................................  

9,322 

432 

366 

5,611 

11 

19,833 

16 

— 

59,006 

358 

79,213 

— 

58 

149,006 

(125)    

(20,486)    

(45,922)    

82,531 

Total liabilities and stockholders’ equity ..............................................................................................................   $ 

161,744 

   $ 

See Accompanying Notes to Consolidated Financial Statements 

1,505 

9,019 

16 

406 

6,201 

11 

17,158 

27 

2,233 

63,958 

554 

83,930 

— 

57 

139,676 

(118) 

(16,210) 

(58,272) 

65,133 

149,063 

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ENERGY RECOVERY, INC. 

CONSOLIDATED STATEMENTS OF OPERATIONS 

Years Ended December 31, 

Product revenue ......................................................................................  $
Product cost of revenue ..........................................................................  
Product gross profit ..............................................................................  

2017 

2015 

2016 
(In thousands, except per share data) 
58,156    $
19,061    
39,095    

49,715    $
17,849    
31,866    

43,671 
19,111 
24,560 

License and development revenue ..........................................................  

5,000    

5,000    

1,042 

Operating expenses: 

General and administrative ..................................................................  
Sales and marketing .............................................................................  
Research and development ..................................................................  
Amortization of intangible assets.........................................................  

Total operating expenses ...................................................................  

Income (loss) from operations ................................................................  

Other income (expense): 

Interest income.....................................................................................  
Interest expense ...................................................................................  
Other non-operating expense, net ........................................................  
Total other income (expense), net .....................................................  
Income (loss) before income taxes .........................................................  
Benefit from income taxes ......................................................................  
Net income (loss) ....................................................................................  $

17,354    
9,391    
13,443    
631    

40,819    

3,276    

870    
(2)   
(188)   
680    
3,956    
(8,394)   
12,350    $

16,626    
9,116    
10,136    
631    

36,509    

19,773 
9,326 
7,659 
635 

37,393 

357    

(11,791) 

309    
(3)   
(19)   
287    
644    
(390)   
1,034    $

53 
(42) 
(192) 
(181) 
(11,972) 
(334) 
(11,638) 

Income (loss) per share: 

Basic ..................................................................................................  $
Diluted ...............................................................................................  $

0.23    $
0.22    $

0.02    $
0.02    $

(0.22) 
(0.22) 

Number of shares used in per share calculations: 

Basic ..................................................................................................  
Diluted ...............................................................................................  

53,701    
55,612    

52,341    
55,451    

52,151 
52,151 

See Accompanying Notes to Consolidated Financial Statements 

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ENERGY RECOVERY, INC. 

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) 

Net income (loss) ....................................................................................  $
Other comprehensive (loss) income, net of tax: 

2017 

Years Ended December 31, 
2016 
(In thousands) 

2015 

12,350    $ 

1,034    $ 

(11,638) 

Foreign currency translation adjustments ............................................  
Unrealized (loss) income on investments ............................................  

Other comprehensive (loss) income, net of tax .................................  

57    
(64)   

(7)   

(27)   
(27)   

(54)   

4 
5 

9 

Comprehensive income (loss) .........................................................  $

12,343    $ 

980    $ 

(11,629) 

See Accompanying Notes to Consolidated Financial Statements 

- 51 - 

 
 
 
  
  
  
  
  
  
    
    
 
 
 
 
ENERGY RECOVERY, INC. 

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY 

Years Ended December 31, 2017, 2016 and 2015  

Additional  
   Common Stock       Treasury Stock      
Paid-in 
  Shares     Amount     Shares     Amount      Capital 

Accumulated 
Other 

Comprehensive       Accumulated      

     Income (Loss)      

Deficit 

Total  
Stockholders’   
Equity 

Balance at December 31, 
2014 ..............................     54,398     $ 
Net loss ...........................      —       

Unrealized gain on 
investments .................      —       

Foreign currency 
translation adjustments      —       
Issuance of common 
stock ............................     
Employee stock-based 
compensation ..............      —       

550       

Balance at December 31, 
2015 ..............................     54,948       
Net income ....................      —       
Unrealized loss on 
investments .................      —       

Foreign currency 
translation adjustments      —       
Issuance of common 
stock ............................      1,936       
Repurchase of common 
stock for treasury .........      —       
Employee stock-based 
compensation ..............      —       

Balance at December 31, 
2016 ..............................     56,884       
Net income ....................      —       
Unrealized loss on 
investments .................      —       

Foreign currency 
translation adjustments      —       

Issuance of common 
stock ............................      1,284       
Repurchase of common 
stock for treasury .........      —       
Employee stock-based 
compensation ..............      —       

Balance at December 31, 
2017 ..............................     58,168     $ 

(In thousands) 

54       (2,479)   $  (6,835)   $ 
—      
—       —      

124,440    $ 
—      

(73)   $ 
—      

(47,668)   $ 
(11,638)     

69,918  
(11,638) 

—       —      

—      

—       —      

—      

—      

—      

1       —      

—      

1,325      

—       —      

—      

4,044      

55       (2,479)     
—       —      

(6,835)     
—      

129,809      
—      

—       —      

—      

—       —      

—      

—      

—      

2       —      

—      

6,598      

—       (1,243)     

(9,375)     

—      

—       —      

—      

3,269      

57       (3,722)      (16,210)     
—      
—       —      

139,676      
—      

—       —      

—      

—       —      

—      

—      

—      

1       —      

—      

5,237      

—      

(541)     

(4,276)     

—      

—       —      

—      

4,093      

5      

4      

—      

—      

(64)     
—      

(27)     

(27)     

—      

—      

—      

(118)     
—      

(64)     

57      

—      

—      

—      

—      

—      

—      

—      

(59,306)     
1,034      

—      

—      

—      

—      

—      

(58,272)     
12,350      

—      

—      

—      

—      

—      

5  

4  

1,326  

4,044  

63,659  
1,034  

(27) 

(27) 

6,600  

(9,375) 

3,269  

65,133  
12,350  

(64) 

57  

5,238  

(4,276) 

4,093  

58       (4,263)   $  (20,486)   $ 

149,006    $ 

(125)   $ 

(45,922)   $ 

82,531  

See Accompanying Notes to Consolidated Financial Statements 

- 52 - 

 
 
 
 
  
    
  
    
  
  
 
 
ENERGY RECOVERY, INC. 

CONSOLIDATED STATEMENTS OF CASH FLOWS 

2017 

Years Ended December 31, 
2016 
(In thousands) 

2015 

12,350    $ 

1,034     $ 

(11,638 ) 

Cash Flows From Operating Activities: 
Net income (loss) ...........................................................................................   $ 
Adjustments to reconcile net income (loss) to net cash provided by 
operating activities: 
Stock-based compensation .........................................................................     
Depreciation and amortization ...................................................................     
Amortization of premiums on investments ................................................     
Provision for warranty claims ....................................................................     
Reversal of accruals related to expired warranties .....................................     
Unrealized loss on foreign currency translation .........................................     
Provision for doubtful accounts .................................................................     
Adjustments for excess or obsolete inventory ............................................     
Deferred income taxes ................................................................................     
Other non-cash adjustments .......................................................................     
Changes in operating assets and liabilities: 

Accounts receivable ...............................................................................     
Unbilled receivables ...............................................................................     
Costs and estimated earnings in excess of billings .................................     
Inventories ..............................................................................................     
Prepaid and other assets .........................................................................     
Accounts payable ...................................................................................     
Accrued expenses and other liabilities ...................................................     
Income taxes payable .............................................................................     
Litigation settlement ...............................................................................     
Deferred revenue, product ......................................................................     
Deferred revenue, license and development ...........................................     
Net cash provided by operating activities ......................................................     
Cash Flows From Investing Activities: 

Restricted cash ...........................................................................................     
Maturities of marketable securities ............................................................     
Purchases of marketable securities .............................................................     
Capital expenditures ...................................................................................     
Net cash (used in) provided by investing activities ........................................     
Cash Flows From Financing Activities: 

Net proceeds from issuance of common stock ...........................................     
Tax payment for employee shares withheld ...............................................     
Proceeds from long-term debt ....................................................................     
Repayment of long-term debt .....................................................................     
Repurchase of common stock.....................................................................     
Net cash provided by (used in) financing activities ........................................     
Effect of exchange rate differences on cash and cash equivalents .................     
Net change in cash and cash equivalents ........................................................     
Cash and cash equivalents, beginning of year ................................................     
Cash and cash equivalents, end of year ..........................................................   $ 

Supplemental disclosure of cash flow information: 

Cash paid for interest .................................................................................   $ 
Cash received for income tax refunds ........................................................   $ 
Cash paid for income taxes ........................................................................   $ 

Supplemental disclosure of non-cash transactions: 

Purchases of property and equipment in trade accounts payable and 

4,087      
3,666      
460      
246      
(200)     
144      
55      
201      
(8,865)     
(196)     

(761)     
(1,223)     
(3,173)     
(1,250)     
(39)     
2,118      
364      
416      
—      
(505)     
(5,000)     
2,895      

1,538      
49,106      
(80,641)     
(7,376)     
(37,373)     

5,508      
(270)     
—      
(11)     
(4,276)     
951      
(57)     
(33,584)     
61,364      
27,780    $ 

3,263       
3,680       
174       
208       
(236 )     
13       
76       
(361 )     
(459 )     
(131 )     

(244 )     
1,695       
(1,825 )     
2,287       
(402 )     
(360 )     
1,259       
14       
—       
280       
(5,000 )     
4,965       

(577 )     
7,535       
(46,552 )     
(1,112 )     
(40,706 )     

6,600       
—       
—       
(10 )     
(9,375 )     
(2,785 )     
(41 )     
(38,567 )     
99,931       
61,364     $ 

2    $ 
16    $ 
57    $ 

3     $ 
2     $ 
51     $ 

4,059   
3,838   
162   
135   
(395 ) 
1   
112   
(250 ) 
(326 ) 
23   

(743 ) 
(128 ) 
—   
1,951   
316   
48   
(708 ) 
(3 ) 
(1,700 ) 
343   
73,958   
69,055   

1,665   
12,925   
—   
(572 ) 
14,018   

1,326   
—   
55   
(7 ) 
—   
1,374   
(17 ) 
84,430   
15,501   
99,931   

42   
4   
24   

43   

accrued expenses and other liabilities ....................................................   $ 

475    $ 

66     $ 

See Accompanying Notes to Consolidated Financial Statements 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Note 1 — Description of Business and Significant Accounting Policies 

Energy Recovery, Inc. and its wholly-owned subsidiaries (the “Company,” “Energy Recovery,” “our,” “us,” or “we”) 
is  an  energy  solutions  provider  to  industrial  fluid  flow  markets  worldwide.  The  Company’s  core  competencies  are  fluid 
dynamics and advanced material science. The Company’s products make industrial processes more operationally and capital 
expenditure efficient. The Company’s solutions convert wasted pressure energy into a reusable asset and preserve or eliminate 
pumping  technology  in  hostile  processing  environments.  The  Company’s  solutions  are  marketed  and  sold  in  fluid  flow 
markets,  such  as  water,  oil  &  gas,  and  chemical  processing,  under  the  trademarks  ERI®,  PX®,  Pressure  Exchanger®,  PX 
Pressure Exchanger®, VorTeq™, MTeq™, IsoBoost®, IsoGen®, AT™, and AquaBold™. The Company owns, manufactures, and/or 
develops its solutions, in whole or in part, in the United States of America, (“U.S.”) and the Republic of Ireland (“Ireland”). 

Basis of Presentation 

The  Company’s  Consolidated  Financial  Statements  include  the  accounts of Energy  Recovery, Inc.  and  its  wholly-

owned subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation. 

Reclassifications 

Certain prior year amounts have been reclassified in the Consolidated Statements of Cash Flows and certain Notes to 

Consolidated Financial Statements to conform to the current year presentation. 

Use of Estimates 

The preparation of Consolidated Financial Statements in conformity with United States (“U.S.”) generally accepted 
accounting principles (“U.S. GAAP”) requires the Company’s management to make judgments, assumptions, and estimates 
that affect the amounts reported in the Consolidated Financial Statements and accompanying Notes to Consolidated Financial 
Statements.  

The accounting policies that reflect the Company’s more significant estimates and judgments and that the Company 
believes are the most critical to aid in fully understanding and evaluating its reported financial results are revenue recognition; 
capitalization of research and development assets; allowance for doubtful accounts; allowance for product warranty; valuation 
of  stock  options;  valuation  and  impairment  of  goodwill  and  acquired  intangible  assets;  useful  lives  for  depreciation  and 
amortization; valuation adjustments for excess and obsolete inventory; deferred taxes and valuation allowances on deferred 
tax assets; and evaluation and measurement of contingencies. Those estimates could change, and as a result, actual results 
could differ materially from those estimates. For example, the Company records impairment losses on long-lived assets used 
in operations when events and circumstances indicate that long-lived assets might be impaired and the undiscounted cash 
flows estimated to be generated by those assets are less than the carrying amounts of those assets. The Company’s estimate 
of  undiscounted  cash  flows,  at  December  31,  2017  and  2016  indicated  that  such  carrying  amounts  were  expected  to  be 
recovered. Nonetheless, it is possible that the estimate of undiscounted cash flows may change in the future resulting in the 
need to write down those assets to fair value. 

Cash and Cash Equivalents 

The Company considers all highly liquid investments with an original or remaining maturity of three months or less 
at  the  time  of  purchase  to  be  cash  equivalents.  Cash  equivalents  are  stated  at  cost,  which  approximates  fair  value.  The 
Company’s cash and cash equivalents are maintained primarily in demand deposit accounts with large financial institutions 
and  in  institutional  money  market  funds.  The  Company  monitors  the  creditworthiness  of  the  financial  institutions  and 
institutional money market funds in which the Company invests its surplus funds. The Company has experienced no credit 
losses from its cash investments. 

- 54 - 

 
 
 
ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Allowances for Doubtful Accounts 

The Company records a provision for doubtful accounts based on historical experience and a detailed assessment of 
the collectability of its accounts receivable. In estimating the allowance for doubtful accounts, the Company considers, among 
other factors, the aging of the accounts receivable, its historical write-offs, the credit worthiness of each customer, and general 
economic conditions. Account balances are charged off against the allowance when the Company believes that it is probable 
that the receivable will not be recovered. Actual write-offs may be in excess of the Company’s estimated allowance. 

Short-Term and Long-Term Investments 

The  Company’s  short-term  and  long-term  investments  consist  primarily  of  investment-grade  debt  securities,  all  of 
which are classified as available-for-sale. Available-for-sale securities are carried at fair value. Amortization or accretion of 
premium or discount is included in other income (expense) on the Consolidated Statements of Operations. Changes in the 
fair  value  of  available-for-sale  securities  are  reported  as  a  component  of  accumulated  other  comprehensive  loss  within 
stockholders’ equity on the Consolidated Balance Sheet. Realized gains and losses on the sale of available-for-sale securities 
are determined by specific identification of the cost basis of each security. Short-term investments mature within 12 months. 
As of December 31, 2017 and 2016, the Company had no long-term investments. 

Inventories 

Inventories  are  stated  at  the  lower  of  cost  (using  the  first-in,  first-out  “FIFO”  method)  or  market.  The  Company 
calculates inventory valuation adjustments for excess and obsolete inventory based on current inventory levels, movement, 
expected useful lives, and estimated future demand of the products and spare parts. 

Property and Equipment 

Property  and  equipment  is  recorded  at  cost  and  reduced  by  accumulated  depreciation.  Depreciation  expense  is 
recognized over the estimated useful lives of the assets using the straight-line method. Estimated useful lives are three to ten 
years. Certain equipment used in the development and manufacturing of ceramic components is depreciated over estimated 
useful  lives  of  up  to  10  years.  Leasehold  improvements  represent  remodeling  and  retrofitting  costs  for  leased  office  and 
manufacturing space and are depreciated over the shorter of either the estimated useful lives or the term of the lease. Software 
purchased for internal use consists primarily of amounts paid for perpetual licenses to third-party software providers and 
installation costs. Software is depreciated over the estimated useful lives of three to five years. Tangible assets acquired for 
research and development (“R&D”) activities and have alternative use are capitalized over the useful life of the acquired 
asset. Estimated useful lives are periodically reviewed, and when appropriate, changes are made prospectively. When certain 
events or changes in operating conditions occur, asset lives may be adjusted and an impairment assessment may be performed 
on the recoverability of the carrying amounts. Maintenance and repairs are charged directly to expense as incurred. 

Goodwill and Other Intangible Assets 

The purchase price of an acquired company is allocated between intangible assets and the net tangible assets of the 
acquired business with the residual purchase price recorded as goodwill. The determination of the value of the intangible 
assets acquired involves certain judgments and estimates. These judgments can include, but are not limited to, the cash flows 
that an asset is expected to generate in the future and the appropriate weighted average cost of capital. 

Acquired intangible assets with determinable useful lives are amortized on a straight-line or accelerated basis over the 
estimated periods benefited, ranging from one to 20 years. Acquired intangible assets with contractual terms are amortized 
over  their  respective  legal  or  contractual  lives.  Customer  relationships  and  other  non-contractual  intangible  assets  with 
determinable lives are amortized over periods ranging from five to 20 years. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

The  Company  evaluates  the  recoverability  of  long-lived  assets  by  comparing  the  carrying  amount  of  an  asset  to 
estimated  future  net  undiscounted  cash  flows  generated  by  the  asset.  If  such  assets  are  considered  to  be  impaired,  the 
impairment recognized is measured as the amount by which the carrying amount of the assets exceeds the fair value of the 
assets.  The  evaluation  of  recoverability  involves  estimates  of  future  operating  cash  flows  based  upon  certain  forecasted 
assumptions,  including,  but  not  limited  to,  revenue  growth  rates,  gross  profit  margins,  and  operating  expenses  over  the 
expected remaining useful  life  of  the related  asset. A  shortfall  in  these estimated  operating  cash  flows  could  result  in  an 
impairment charge in the future. 

Goodwill is not amortized, but is evaluated annually for impairment at the reporting unit level or when indicators of a 
potential impairment are present. The Company estimates the fair value of the reporting unit using the discounted cash flow 
and  market  approaches.  Forecast  of  future  cash  flows  are  based  on  the  Company’s  best  estimate  of  future  net  sales  and 
operating  expenses,  based  primarily  on  expected  category  expansion,  pricing,  market  segment,  and  general  economic 
conditions. 

As  of  December  31,  2017  and  2016,  acquired  intangibles,  including  goodwill,  relate  to  the  acquisition  of  Pump 
Engineering, LLC during the fourth quarter of 2009. See Note 6, “Goodwill and Intangible Assets,” for further discussion of 
intangible assets. 

Fair Value of Financial Instruments 

The Company’s financial instruments include cash and cash equivalents, restricted cash, investments in marketable 
securities, accounts receivable, accounts payable, and debt. The carrying amounts for these financial instruments reported in 
the Consolidated Balance Sheets approximate their fair values. See Note 5, “Investments and Fair Value Measurements,” for 
further discussion of fair value. 

Revenue Recognition 

Product and service revenue recognition – Water Segment 

The Company recognizes revenue when the earnings process is complete, as evidenced by a written agreement with 
the customer, transfer of title, fixed pricing that is determinable, and collection that is reasonably assured. Transfer of title 
typically occurs upon shipment of the equipment pursuant to a written purchase order or contract. The portion of the sales 
agreement related to the field services and training for commissioning of the Company’s devices in a desalination plant is 
deferred  until  the  Company  performs  such  services.  The  Company  regularly  evaluates  revenue  arrangements  to  identify 
deliverables and to determine whether these deliverables are separable into multiple units of accounting. 

Under  the  Company’s  revenue  recognition  policy,  evidence  of  an  arrangement  is  met  when  the  Company  has  an 
executed purchase order, sales order, or stand-alone contract. Typically, smaller projects utilize sales or purchase orders that 
conform to standard terms and conditions. 

The specified product performance criteria for the Company’s PX® energy recovery devices (“ERDs”) pertain to the 
ability  of  the  Company’s  product  to  meet  its  published  performance  specifications  and  warranty  provisions,  which  the 
Company’s products have demonstrated on a consistent basis. This factor, combined with historical performance metrics, 
provides the Company’s management with a reasonable basis to conclude that the PX ERDs will perform satisfactorily upon 
commissioning  of  the  plant.  To  ensure  this  successful  product  performance,  the  Company  provides  service  consisting 
principally of supervision of customer personnel and training to the customers during the commissioning of the plant. The 
installation  of  the  PX  ERDs  is  relatively  simple,  requires  no  customization,  and  is  performed  by  the  customer  under  the 
supervision  of  our  personnel.  The  Company  defers  the  value  of  the  service  and  training  component  of  the  contract  and 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

recognize such revenue as services are rendered. Based on these factors, the Company has concluded that, for sale of PX 
ERDs, as well as for turbochargers and pumps, delivery and performance have been completed upon shipment or delivery 
when title transfers based on the shipping terms. 

The Company performs an evaluation of customer credit worthiness on an individual contract basis to assess whether 
collectability is reasonably assured. As part of this evaluation, the Company considers many factors about the individual 
customer, including the underlying financial strength of the customer and/or partnership consortium and the Company’s prior 
history or industry-specific knowledge about the customer and its supplier relationships. For smaller projects, the Company 
requires  the  customer  to  remit  payment  generally  within  30  to  90  days  after  product  delivery.  In  some  cases,  if  credit 
worthiness cannot be determined, prepayment or other security is required. 

The  Company  establishes  separate  units  of  accounting  for  contracts,  as  the  Company’s  mega-project  (“MPD”) 
contracts with customers typically include one or both of the deliverables, products or commissioning, and there is no right 
of return under the terms of the contract. 

Commissioning includes supervision of the installation, start-up, and training to ensure that the installation performed 
by the customer which, is relatively simple and straightforward, is completed consistent with the recommendations under the 
factory warranty. The commissioning services’ element of the Company’s contracts represents an incidental portion of the 
total contract price and the allocable consideration for these services relative to that for the underlying products has been well 
under  1%  of  any  arrangement.  Commissioning  is  often  bundled  into  the  large  stand-alone  contracts,  and  the  Company 
frequently sells products without commissioning since its product can be easily installed in a plant without supervision. These 
facts  and  circumstances  validate  that  the  delivered  element  has  value  on  a  stand-alone  basis  and  should  be  considered  a 
separate unit of accounting. 

Having established separate units of accounting, the Company then allocates amounts to each unit of accounting. With 
respect to products, the Company has established vendor specific objective evidence (“VSOE”) based on the price at which 
such products are sold separately without commissioning services. With respect to commissioning, the Company charges out 
its engineers for field visits to customers based on a stand-alone standard daily field service charge as well as a flat service 
rate for travel, if applicable. This has been determined to be the VSOE of the service based on stand-alone sales of other 
comparable professional services at consistent pricing. 

The amount allocable to the delivered unit of account (in our case the product) is limited to the amount that is not 
contingent  upon  the  delivery  of  additional  items  or  meeting  specified  performance  conditions.  The  Company  adheres  to 
consistent pricing in both stand-alone sale of products and professional services and the contractual pricing of products and 
commissioning of services in bundled arrangements. 

For  large  projects,  stand-alone  contracts  are  utilized.  For  these  contracts,  consistent  with  industry  practice,  the 
Company’s customers typically require their suppliers, including Energy Recovery, to accept contractual holdback provisions 
(also referred to as a retention payment) whereby the final amounts due under the sales contract are remitted over extended 
periods of time or alternatively, stand-by letters of credit are issued to guarantee performance. These retention payments are 
generally 10% or less of the total contract amount and are due and payable when the customer is satisfied that certain specified 
product performance criteria have been met upon commissioning of the desalination plant, which may be up to 24 months 
from the date of product delivery as described further below. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Under stand-alone MPD contracts, the usual payment arrangements are summarized as follows: 

• 

• 

• 

an advance payment due upon execution of the contract, typically 10% to 20% of the total contract amount. This
advance  payment  is  accounted  for  as  deferred  revenue  until  shipment  or  when  products  are  delivered  to  the
customer, depending on the international commercial terms (commonly referred to as “incoterms”) and transfer of
title; 

a payment ranging from 50% to 70% of the total contract is typically due upon shipment of the product. This
payment is often divided into two parts. The first part, which is due 30 to 60 days following delivery of the product
and documentation, is invoiced upon shipment when the product revenue is recognized and results in an open
accounts receivable with the customer. The second part is typically due 90 to 120 days following product delivery 
and documentation. This payment is booked to unbilled receivables upon shipment when the product revenue is
recognized, and it is invoiced to the customer upon notification that the equipment has been received or when the
time period has expired. The Company has no performance obligation to complete to be legally entitled to this
payment. It is invoiced based on the passage of time. 

a final retention payment of generally 10% or less of the contract amount is due either at the completion of plant
commissioning or upon the issuance of a stand-by letter of credit, which is typically issued up to 24 months from
the delivery date of products and documentation. This payment is recorded to unbilled receivables upon shipment
when  the  product  revenue  is  recognized,  and  it  is  invoiced  to  the  customer  when  it  is  determined  that
commissioning is complete or the stand-by letter of credit has been issued. This payment is not contingent upon
the delivery of commissioning services. The Company had no performance obligation to complete to be legally
entitled to this payment. It is invoiced based on the passage of time. 

The Company does not provide its customers with a right of product return; however, the Company will accept returns 
of products that are deemed to be damaged or defective when delivered that are covered by the terms and conditions of the 
product warranty. Product returns have not been significant. 

Shipping and handling charges billed to customers are included in product revenue. The cost of shipping to customers 

is included in cost of revenue. 

License, milestone payment, and royalty revenue recognition – Oil & Gas Segment 

License  and  development  revenue  is  comprised  of  the  amortization  of  the  upfront  non-refundable  $75.0  million 
exclusivity  fee  received  in  connection  with  the  VorTeq  License  Agreement  entered  into  with  Schlumberger  Technology 
Corporation (the “VorTeq Licensee”). See Note 15, “VorTeq Partnership and License Agreement.”  The VorTeq License 
Agreement  comprises  a  15-year  exclusivity  license  for  our  VorTeq™  technology  (“VorTeq”),  milestone  payments  upon 
achievement  of  successful  tests  in  accordance  with  the  Key  Performance  Indicators  (“KPIs”),  defined  in  the  license 
agreement, and, after commercialization is achieved, royalty payments for the supply and servicing of certain components of 
the VorTeq. All payments are non-refundable. 

The Company recognizes license and development revenue in accordance with the Financial Accounting Standards 
Board (“FASB”) Accounting Standards Codification (“ASC”) 605, “Revenue Recognition,” subtopic ASC 605-25 “Revenue 
with Multiple Element Arrangements” and subtopic ASC 605-28 “Revenue Recognition-Milestone Method,” which provides 
accounting  guidance  for  revenue  recognition  for  arrangements  with  multiple  deliverables  and  guidance  on  defining  the 
milestone and determining when the use of the milestone method of revenue recognition is appropriate, respectively. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

For  multiple-element  arrangements,  each  deliverable  is  accounted  for  as  a  separate  unit  of  accounting  if  both  the 
following criteria are met: (1) the delivered item or items have value to the customer on a standalone basis and (2) for an 
arrangement that includes a general right of return relative to the delivered item(s), delivery or performance of the undelivered 
item(s) is considered probable and substantially in the Company’s control. Contingent deliverables within multiple element 
arrangements are excluded from the evaluation of the units of accounting. Non-refundable, upfront license fees where the 
Company has continuing obligation to perform are recognized over the period of the continuing performance obligation. The 
VorTeq License Agreement was determined to include a single unit of accounting. The initial upfront fee of $75.0 million is 
recognized on a straight-line basis over the 15-year term of the arrangement based on the performance period of the last or 
final deliverables, which include the license and support. 

The  Company  recognizes  revenue  from  milestone  payments  when:  (i)  the  milestone  event  is  substantive  and  its 
achievability has substantive uncertainty at the inception of the agreement, and (ii) it does not have ongoing performance 
obligations related to the achievement of the milestone earned. Milestone payments are considered substantive if all of the 
following conditions are met, the milestone payment: (a) is commensurate with either the Company’s performance subsequent 
to the inception of the arrangement to achieve the milestone or the enhancement of the value of the delivered item or items 
as a result of a specific outcome resulting from the Company’s performance subsequent to the inception of the arrangement 
to achieve the milestone; (b) relates solely to past performance; and (c) is reasonable relative to all of the deliverables and 
payment terms (including other potential milestone consideration) within the arrangement. The VorTeq License Agreement 
includes two substantive milestones of $25.0 million each due on achievement of successful tests in accordance with KPIs. 
No revenues associated with achievement of the milestones have been recognized to date. 

Percentage-of-completion revenue recognition – Oil & Gas Segment 

IsoBoost and IsoGen systems are highly engineered, customized solutions that are designed and manufactured over an 
extended  period  of  time  and  are  built  specifically  to  meet  a  customer’s  specifications.  It  is  the  Company’s  position  that 
percentage-of-completion  method  of  accounting  is  appropriate  for  IsoBoost  and  IsoGen  systems  given  the  facts  and 
circumstances of these projects. In the event that a purchase order for an IsoBoost or IsoGen does not meet these facts and 
circumstances, then percentage-of-completion method of accounting does not apply. 

Revenue from fixed price contracts is recognized using the percentage-of-completion method of accounting in the ratio 
of  costs  incurred  to  estimated  final  costs.  Contract  costs  include  all  direct  material  and  labor  costs  related  to  contract 
performance.  Pre-contract  costs  with  no  future  benefit  are  expensed  in  the  period  in  which  they  are  incurred.  Since  the 
financial reporting of these contracts depends on estimates, which are assessed continually during the term of the contract, 
recognized revenues and profit are subject to revisions as the contract progresses to completion. Revisions in profit estimates 
are reflected in the period in which the facts that give rise to the revisions become known. If material, the effects of any 
changes in estimates are disclosed in the notes to the consolidated financial statements. When estimates indicate that a loss 
will be incurred on a contract, a provision for the expected loss is recorded in the period in which the loss becomes evident. 
No loss has been incurred to date. Revenue is recognized only to the extent costs have been recognized in the same period. 

Research and Development Expense 

R&D expenses consist of costs incurred for internal projects and for technology licensed to third parties. These costs 
include the Company’s direct and research-related overhead expenses, which include salaries and other personnel-related 
expenses (including stock-based compensation), occupancy-related costs, depreciation of facilities, as well as external costs 
for equipment and supplies. Costs to acquire technologies that are utilized in research and development and that have no 
alternative future use are expensed when incurred. All R&D costs are expensed as incurred and are included in operating 
expenses. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Warranty Costs 

The Company sells products with a limited warranty for a period ranging from 18 months to 5 years. The Company 
accrues  for  warranty  costs  based  on  estimated  product  failure  rates,  historical  activity,  and  expectations  of  future  costs. 
Periodically, the Company evaluates and adjusts the warranty costs to the extent that actual warranty costs vary from the 
original estimates. 

Stock-based Compensation 

The Company measures and recognize stock-based compensation expense based on the fair value measurement for all 
stock-based awards made to its employees and directors, including restricted stock units (“RSUs”), restricted shares (“RS”), 
and employee stock options over the requisite service period (typically the vesting period of the awards). The fair value of 
RSUs and RS is based on the Company’s stock price on the date of grant. The fair value of stock options is calculated on the 
date  of  grant  using  the  Black-Scholes option  pricing  model,  which  requires  a  number  of  complex  assumptions  including 
expected life, expected volatility, risk-free interest rate, and dividend yield. The estimation of awards that will ultimately vest 
requires judgment, and to the extent that actual results or updated estimates differ from our current estimates, such amounts 
are  recorded  as  a  cumulative  adjustment  in  the  period  in  which  the  estimates  are  revised.  See  Note  11,  “Stock-based 
Compensation,” for further discussion of stock-based compensation. 

Foreign Currency 

The Company’s reporting currency is the U.S. dollar. The functional currency of the Company’s Irish subsidiaries is 
the U.S. dollar, while the functional currency of the Company’s other foreign subsidiaries is their respective local currencies. 
The asset and liability accounts of the Company’s foreign subsidiaries are translated from their local currencies at the rates 
in effect on the balance sheet date. Revenue and expenses are translated at average rates of exchange prevailing during the 
period.  Gains  and  losses  resulting  from  the  translation  of  the  Company’s  subsidiary  balance  sheets  are  recorded  as  a 
component  of  accumulated  other  comprehensive  income  (loss).  Gains  and  losses  from  foreign  currency  transactions  are 
recorded in other income (expense) in the Consolidated Statements of Operations. 

Income Taxes 

Current and non-current tax assets and liabilities are based upon an estimate of taxes refundable or payable for each of 
the jurisdictions in which the Company is subject to tax. In the ordinary course of business, there is inherent uncertainty in 
quantifying income tax positions. The Company assesses income tax positions and record tax benefits for all years subject to 
examination based upon the Company’s evaluation of the facts, circumstances, and information available at the reporting 
dates. For those tax positions where it is more likely than not that a tax benefit will be sustained, the Company records the 
largest amount of tax benefit with a greater than 50% likelihood of being realized upon ultimate settlement with a taxing 
authority that has full knowledge of all relevant information. For those income tax positions where it is not more likely than 
not that a tax benefit will be sustained, no tax benefit is recognized in the financial statements. When applicable, associated 
interest  and penalties  are  recognized  as  a  component of  income  tax expense. Accrued interest  and penalties  are  included 
within the related tax asset or liability on the Consolidated Balance Sheets. 

Deferred income taxes are provided for temporary differences arising from differences in bases of assets and liabilities 
for tax and financial reporting purposes. Deferred income taxes are recorded on temporary differences using enacted tax rates 
in effect for the year in which the temporary differences are expected to reverse. The effect of a change in tax rates on deferred 
tax assets and liabilities is recognized in income in the period that includes the enactment date. Deferred tax assets are reduced 
by a valuation allowance when, in the opinion of management, it is more likely than not that some portion or all of the deferred 
tax assets will not be realized. Significant judgment is required in determining whether and to what extent any valuation 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

allowance  is  needed  on  the  Company’s  deferred  tax  assets.  In  making  such  a  determination,  the  Company  considers  all 
available positive and negative evidence including recent results of operations, scheduled reversals of deferred tax liabilities, 
projected future income, and available tax planning strategies. See Note 9, “Income Taxes,” for further discussion of tax 
valuation allowances. 

On December 22, 2017, President Trump signed into law “H.R.1”, known as the “Tax Cuts and Jobs Act”, (the “Tax 
Act”),  which  significantly  changes  existing  U.S.  tax  laws.  Following  the  enactment  of  the  Tax  Act,  the  Securities  and 
Exchange  Commission  (“SEC”)  staff  issued  Staff  Accounting  Bulletin  (“SAB”)  No.  118,  (“SAB  118”)  which  provides 
guidance on accounting for the tax effects of the Tax Act. SAB 118 provides a measurement period that should not extend 
beyond  one  year  from  the  Tax  Act  enactment  date  for  companies  to  complete  the  accounting  under  ASC  No.  740 
(“ASC 740”), Income Taxes.  In accordance with SAB 118, a company must reflect the income tax effects of those aspects 
of the Tax Act for which the accounting under ASC 740 is complete. To the extent that a company’s accounting for certain 
income tax effects of the Tax Act is incomplete but it is able to determine a reasonable estimate, it must record a provisional 
estimate in the financial statements. If a company cannot determine a provisional estimate to be included in the financial 
statements, it should continue to apply ASC 740 on the basis of the provisions of the tax law that were in effect immediately 
before the enactment of the Tax Act. At December 31, 2017, the Company determined that given the Company’s facts and 
circumstances, no provisional estimates were needed, and, therefore, the Company has booked no provisional estimates as of 
December 31, 2017. See Note 9, “Income Taxes,” for a discussion of the Company’s income tax accounting related to the 
Tax Act. 

The  Company’s  operations  are  subject  to  income  and  transaction  taxes  in  the  U.S.  and  in  foreign  jurisdictions. 
Significant estimates and judgments are required in determining the Company’s worldwide provision for income taxes. Some 
of these estimates are based on interpretations of existing tax laws or regulations. The ultimate amount of tax liability may 
be uncertain as a result. 

Note 2 — Recent Accounting Pronouncements 

Recently adopted accounting pronouncements 

In  March  2016,  the  FASB  issued  Accounting  Standards  Update  (“ASU”)  No.  2016-09  (“ASU  2016-09”), 
Compensation  –  Stock  Compensation  (Topic  718):  Improvements  to  Employee  Share-Based  Payment  Accounting.  
ASU 2016-09 requires excess tax benefits and tax deficiencies (the difference between the deduction for tax purposes and 
the compensation cost recognized for financial reporting purposes) be recognized as income tax expense or benefit in the 
income statement. Previously, these amounts were recognized directly to shareholder’s equity. The excess tax benefit from 
share-based  compensation,  previously  classified  as  a  financing  activity,  will  be  classified  as  an  operating  activity. 
Additionally, cash paid when directly withholding shares on an employee’s behalf for tax withholding purposes, is classified 
as a financing activity. The Company adopted this guidance on January 1, 2017. The adoption resulted in an increase to the 
net  operating  loss  carryforward  deferred  tax  asset  and  a  corresponding  increase  in  valuation  allowance  of  $6.9  million 
attributable to excess tax benefits not previously recognized as they did not reduce income taxes payable. The Company 
elected to continue to estimate forfeitures as part of the recognition of cost associated with equity awards. The Company 
applied prospectively all excess tax benefits and tax deficiencies resulting from settlement of awards after the date of adoption. 
No adjustments were recorded for any windfall benefits previously recorded in additional paid-in capital. 

Recently issued accounting pronouncement not yet adopted 

In  May  2014,  the  FASB  issued  ASU  No.  2014-09  (“ASU  2014-09”),  Revenue  from  Contracts  with  Customers 
(Topic 606). The update requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer 
of promised goods or services to customers and will replace most existing revenue recognition guidance in GAAP when it 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

becomes effective. The update also requires more detailed disclosures to enable readers of financial statements to understand 
the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. ASU 2014-09 
was originally effective for annual reporting periods beginning after December 15, 2016, including interim periods within 
that reporting period. On July 9, 2015, the FASB voted to approve a one-year deferral of the effective date of ASU 2014-09. 
Additionally, the FASB decided to permit early adoption, but not before the original effective date (that is, annual periods 
beginning  after  December  15,  2016).  ASU  2014-09  permits  the  use  of  either  the  full  retrospective  or  cumulative  effect 
transition (modified retrospective) method. 

In  March  and  April  2016,  the  FASB  issued  ASU  No.  2016-08  (“ASU  2016-08”),  Revenue  from  Contracts  with 
Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net) and ASU No. 2016-
10  (“ASU  2016-10”),  Revenue  from  Contracts  with  Customers  (Topic  606)  Identifying  Performance  Obligations  and 
Licensing, respectively. The amendments in these updates are intended to improve the operability and understandability of 
the implementation guidance on principal versus agent considerations and to clarify two aspects of Topic 606: identifying 
performance obligations and the licensing implementation guidance, while retaining the related principles for those areas. 
The effective date and transition requirements for both ASU 2016-08 and ASU 2016-10 are the same as those for ASU 2014-
09 as deferred. 

To assess the impact of and to implement Topic 606, the Company formed a project team, which has operated since 
2014, to evaluate internal processes. The Company plans to adopt Topic 606 as of January 1, 2018 and expects to use the full 
retrospective transition method, pending the final results of our quantitative analysis of Oil & Gas segment - License Revenue 
which will be completed in the first quarter of 2018. The Company continues to evaluate the effect that ASU 2014-09 will 
have on its financial statements, as well as the impact that the standard will have on the Company’s disclosures. The Company 
is implementing changes to its current policies and practices, and internal controls over financial reporting to address the 
requirements of the standard. 

Water Segment Revenue. The Company expects that the deliverables identified under the current guidance will be 
consistent with the performance obligations identified under ASC 606. Revenue recognition for the performance obligations 
accounted for under ASC 606 is expected to be consistent with current guidance given the transfer of control of the promised 
goods or services follows the same pattern. The Company has completed the quantitative assessment of the Water segment 
at December 31, 2017 and the Company does not expect the adoption of ASC 606 to have a material impact on the timing of 
revenue and expense recognition. 

Oil & Gas Segment - Percentage of Completion Revenue. The Company expects that the deliverables under the current 
guidance  will  be  consistent  with  the  performance  obligations  identified  under  ASC  606.  The  Company  is  in  process  of 
completing the quantitative assessment of the adoption impact. At this time, the Company does not expect that adoption of 
ASC  606  will  have  a  material  impact  on  the  timing  of  revenue  and  expense  recognition;  however,  the  analysis  will  be 
completed in the first quarter of 2018. Revenue recognition for the performance obligations accounted for under ASC 606 is 
expected to be materially consistent with current guidance given the transfer of control of the promised goods or services 
occurs over time under ASC 606 and the Company is applying percentage of completion accounting pursuant to ASC 605-
35 under legacy GAAP. 

Oil & Gas Segment - License Revenue. The Company expects to complete its assessment of the impact of ASC 606 
on its licensing and development agreement during the first quarter of 2018. Based on work performed to date, the Company 
expects that there may be a material difference in the timing of revenue recognition under the new standard, with the most 
likely impact being an overall acceleration of the recognition of deferred revenue for this license agreement. Under existing 
guidance, license revenue associated with the up-front payment is recognized on a straight-line basis over the fifteen-year 
term of the license, while substantive milestone payments are to be recognized when achieved. Under ASC 606, because the 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Company concluded that the license represents functional intellectual property and that the license is not distinct from the 
research and development services to be provided prior to product commercialization, the transaction price allocated to this 
performance obligation will be recognized over the period required to result in product commercialization (which is currently 
estimated to be complete in 2020) instead of over the entire license period. Further, the milestone method of accounting has 
been eliminated. As such, instead of recognizing the full amount of the milestone as revenue in the period in which it is 
achieved, the Company will revise its estimate of the transaction price to include development milestone payments only when 
they become probable of achievement and recognized in a manner consistent with the measure of progress. The Company 
also believes that its obligation to provide when and if available updates to its technology in the period subsequent to product 
commercialization represents a distinct performance obligation from our license and development efforts. The transaction 
price allocated to this stand-ready performance obligation will be recognized straight-line over the period commencing after 
product commercialization. At this time, the Company is working closely with its engineering team to finalize the appropriate 
measures  of  progress  to  be  used  to  determine  the  amount  of  revenue  to  recognize  in  each  period  prior  to  product 
commercialization. 

In January 2016, the FASB issued ASU No. 2016-01 (“ASU 2016-01”), Financial Instruments - Overall (Subtopic 825-
10): Recognition and Measurement of Financial Assets and Financial Liabilities.  ASU 2016-01 modifies certain aspects of 
the  recognition,  measurement,  presentation,  and  disclosure  of  financial  instruments.  For  public  entities,  ASU  2016-01  is 
effective for fiscal years, and interim periods within those years, beginning after December 15, 2017. The Company adopted 
ASU 2016-01 on January 1, 2018. The Company expects the adoption ASU 2016-01 will not have a material impact on its 
financial statements. 

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which supersedes ASC Topic 840, Leases 
(Topic 840) and provides principles for the recognition, measurement, presentation and disclosure of leases for both lessees 
and lessors. The FASB has continued to clarify this guidance through the issuance of additional ASUs. The new standard 
requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of 
whether or not the lease is effectively a financed purchase by the lessee. This classification will determine whether lease 
expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease, respectively. 
A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than twelve 
months regardless of classification. Leases with a term of twelve months or less will be accounted for similar to existing 
guidance for operating leases. The standard will be effective for annual and interim periods beginning after December 15, 
2018, with early adoption permitted upon issuance. The Company plans to early adopt this standard on January 1, 2018. The 
Company plans to elect the available practical expedients and expects that the adoption of ASU 2016-02 will have no impact 
to its Consolidated Statement of Operations; however, it will result in a net increase in a right-of-use asset of $2.9 million 
and an increase in lease liability of $3.3 million on its Consolidated Balance Sheets. 

In  August  2016,  the  FASB  issued  ASU  No.  2016-15  (“ASU  2016-15”),  Statement  of  Cash  Flows  (Topic  230): 
Classification of Certain Cash Receipts and Cash Payments. ASU 2016-15 impacts all entities that are required to present a 
statement of cash flows under Topic 230. The amendment provides guidance on eight specific cash flow issues. For public 
entities, ASU 2016-15 is effective for fiscal periods beginning after December 15, 2017 and interim periods within those 
years. Adoption should be applied using a retrospective transition method to each period presented. The Company is adopting 
this standard as of January 1, 2018. The Company expects the adoption of ASU 2016-15 to not have a material impact on its 
financial statements. 

In October 2016, the FASB issued ASU 2016-16 (“ASU 2016-16”), Income Taxes (Topic 740): Intra-Entity Transfers 
of Assets Other Than Inventory.  ASU 2016-16 requires recognition of the current and deferred income tax effects of an intra-
entity asset transfer, other than inventory, when the transfer occurs, as opposed to current GAAP, which requires companies 
to defer the income tax effects of intra-entity asset transfers until the asset has been sold to an outside party. The income tax 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

effects of intra-entity inventory transfers will continue to be deferred until the inventory is sold. ASU 2016-16 is effective on 
January 1, 2018, with early adoption permitted. The update is required to be adopted on a modified retrospective basis with 
the cumulative-effect adjustment recorded to retained earnings as of the beginning of the period of adoption. The Company 
is adopting this standard as of January 1, 2018. The Company expects the adoption of ASU 2016-16 to not have a material 
impact on its financial statements. 

In November 2016, the FASB issued ASU 2016-18 (“ASU 2016-18”), Statement of Cash Flows (Topic 230): Restricted 
Cash.  ASU 2016-18 is intended to reduce diversity in practice in the classification and presentation of changes in restricted 
cash on the Consolidated Statement of Cash Flows. ASU 2016-18 requires that the Consolidated Statement of Cash Flows 
explain  the  change  in  total  cash  and  equivalents  and  amounts  generally  described  as  restricted  cash  or  restricted  cash 
equivalents  when  reconciling  the  beginning-of-period  and  end-of-period  total  amounts.  The  standard  also  requires 
reconciliation between the total cash and equivalents and restricted cash presented on the Consolidated Statement of Cash 
Flows and the cash and cash equivalents balance presented on the Consolidated Balance Sheet. ASU 2016-18 is effective 
retrospectively on January 1, 2018. The Company is adopting this standard as of January 1, 2018. The Company expects the 
adoption of ASU 2016-18 to have a material impact on its Consolidated Statements of Cash Flows based on the restricted 
cash balance on the balance sheet date. 

In  January  2017,  the  FASB  issued  ASU  No.  2017-04,  Goodwill  and  Other  (Topic  350):  Simplifying  the  Test  for 
Goodwill  Impairment.  ASU  2017-04  eliminates  Step  2  of  the  goodwill  impairment  quantitative  test  and  allows  for  the 
determination of impairment by comparing the fair value of the reporting unit with its carrying amount. The amendments in 
this update should be applied on a prospective basis. For public entities which are SEC filers, this amendment is effective for 
annual  or  any  interim  goodwill  impairment  tests  in  fiscal  years  beginning  after  December  15,  2019.  Early  adoption  is 
permitted for testing dates after January 1, 2017. The Company expects to adopt this standard on January 1, 2020 and do not 
expect the adoption of ASU 2017-04 to have a material impact on its financial statements. 

In  May  2017,  the  FASB  issued  ASU  No.  2017-09,  Compensation  –  Stock  Compensation  (Topic  718):  Scope  of 
Modification Accounting. ASU 2017-09 provides guidance about which changes to the terms or conditions of a share-base 
payment award require an entity to apply modification accounting under Topic 718. ASU 2017-09 is effective for annual 
periods and interim periods within those annual periods, beginning after December 15, 2017. The Company is adopting this 
standard as of January 1, 2018. The Company expects the adoption of ASU 2017-09 to not have an impact on its financial 
position or results of operations. 

In  February  2018,  the  FASB  issued  ASU  No.  2018-02  (“ASU  2018-02”),  Income  Statement  –  Reporting 
Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. 
ASU  2018-02  was  issued  to  address  the  income  tax  accounting  treatment  of  the  stranded  tax  effects  within  other 
comprehensive income due to the prohibition of backward tracing due to an income tax rate change that was initially recorded 
in  other  comprehensive  income.  This  issue  came  about  from  the  enactment  of  the  Tax  Act  that  changed  the  Company’s 
income tax rate from 35% to 21%. ASU 2018-02 changed current accounting whereby an entity may elect to reclassify the 
stranded tax effect from accumulated other comprehensive income to retained earnings. The ASU 2018-02 is effective for 
periods beginning after December 15, 2018 although early adoption is permitted. The Company does not expect the adoption 
of ASU 2018-02 to have a material impact on its financial position or results of operations. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Note 3 — Income (Loss) Per Share  

Net  income  (loss)  is  divided  by  the  weighted  average  number  of  common  shares  outstanding  during  the  year  to 
calculate basic net income (loss) per common share. Basic earnings per share exclude any dilutive effects of stock options 
and RSUs. 

Diluted net income (loss) per common share reflects the potential dilution that would occur if outstanding stock options 
to  purchase  common  stock  were  exercised  for  common  stock,  using  the  treasury  stock  method,  and  the  common  stock 
underlying outstanding restricted award was issued. Diluted earnings per share for the years ended December 31, 2017, 2016 
and 2015, includes the dilutive effects of stock options and RSUs. Certain common stock issuable under stock options and 
RSUs have been omitted from the 2017, 2016 and 2015 diluted net income per share calculations because their inclusion is 
considered anti-dilutive. 

The computation of basic and diluted net income (loss) per share is presented in the following table. 

Year Ended December 31, 

2017 

2016 

2015 

(In thousands, except per share amounts) 

Numerator: 

Net income (loss) .............................................................................................  $

12,350    $

1,034    $

(11,638) 

Denominator: 

Basic weighted average common shares outstanding .......................................  

Weighted average effect of dilutive stock awards ............................................  

Diluted weighted average common shares outstanding ....................................  

53,701    
1,911    
55,612    

52,341    
3,110    
55,451    

52,151 
— 
52,151 

Net income (loss) per share: 

Basic .................................................................................................................  $

Diluted .............................................................................................................  $

0.23    $
0.22    $

0.02    $
0.02    $

(0.22) 

(0.22) 

The potential common shares were excluded from the computation of diluted net income (loss) per share as their effect 

would have been anti-dilutive is presented in the following table. 

Anti-dilutive shares excluded from net income (loss) per share calculation ........  

1,810    

2,987    

7,198 

Year Ended December 31, 

2017 

2016 

2015 

(In thousands) 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Note 4 — Other Financial Information 

Cash, Cash Equivalents and Restricted Cash 

The  Company  pledged  cash  in  connection  with  certain  stand-by  letters  of  credit  and  company  credit  cards.  The 
Company deposited corresponding amounts into accounts at several financial institutions. See Note 7, “Long-term Debt and 
Lines of Credit,” for additional discussion related to the Company’s stand-by letters of credit and restricted cash requirements.  

The Company’s cash, cash equivalents, and restricted cash are presented in the table below. 

Cash and cash equivalents ......................................................................................................................  $ 
Restricted cash ........................................................................................................................................  

Total Cash, cash equivalents, and Restricted cash ..............................................................................  $ 

(In thousands) 

27,780    $ 
2,846    

30,626    $ 

61,364 
4,384 

65,748 

December 31,  
2017 

December 31,  
2016 

Unbilled Receivables 

The Company’s unbilled receivables pertaining to customer contractual holdback provisions, whereby the Company 
will invoice the final retention payment(s) due under certain sales contracts within 12 months. Customer holdbacks represent 
amounts intended to provide a form of security for the customer; accordingly, these receivables have not been discounted to 
present value. As of December 31, 2017 and 2016, all unbilled receivables were current. 

Cost and Estimated Earnings in Excess of Billings 

Cost and estimated earnings on uncompleted contracts is presented in the following table. 

December 31,  
2017 

December 31,  
2016 

(In thousands) 

Estimated earnings to date ..................................................................................................................  $ 
Estimated costs to date .......................................................................................................................  

Subtotal ...........................................................................................................................................  

Net billings to date .............................................................................................................................  

6,000    $ 
(4,525)    

1,475    
2,718    

Total .............................................................................................................................................  $ 

4,193    $ 

Included in accompanying balance sheets: 

Cost and estimated earnings in excess of billings ...........................................................................  $ 
Unbilled project costs ......................................................................................................................  

Total .............................................................................................................................................  $ 

4,998    $ 
(805)    
4,193    $ 

2,170 

(1,496) 

674 
82 

756 

1,825 

(1,069) 
756 

Unbilled project costs are included in Accrued expenses and other current liabilities on the Consolidated Balance 

Sheets. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Inventories 

Inventories are stated at the lower of cost (using the first-in, first-out method) or market and are presented by category 

in the following table. 

December 31,  
2017 

December 31,  
2016 

(In thousands) 

Raw materials .....................................................................................................................................  $ 
Work in process ..................................................................................................................................  

Finished goods ....................................................................................................................................  

Inventories, net ................................................................................................................................  $ 

1,899    $
2,191    
1,424    
5,514    $

1,783 
1,146 
1,621 
4,550 

Valuation adjustments for excess and obsolete inventory, reflected as a reduction of inventory at December 31, 2017 

and 2016 was $0.7 million and $1.4 million, respectively. 

Prepaid and Other Current Assets 

Prepaid expenses and other current assets by category are presented in the following table. 

December 31,  
2017 

December 31,  
2016 

(In thousands) 

Interest receivable ...............................................................................................................................  $ 
Supplier advances ...............................................................................................................................  

Insurance ............................................................................................................................................  

Software license .................................................................................................................................  

Other prepaid expenses and current assets..........................................................................................  

439    $
124    
256    
193    
330    

272 
73 
231 
216 
519 

Total prepaid and other current assets .............................................................................................  $ 

1,342    $

1,311 

Property and Equipment 

Property and equipment held for use by category are presented in the following table. 

December 31,  
2017 

December 31,  
2016 

(In thousands) 

Machinery and equipment ..................................................................................................................  $ 
Leasehold improvements ....................................................................................................................  

Software .............................................................................................................................................  

Office equipment, furniture, and fixtures ...........................................................................................  

Automobiles .......................................................................................................................................  

Construction in progress .....................................................................................................................  

Total property and equipment .........................................................................................................  

Less: accumulated depreciation and amortization ..............................................................................  

Property and equipment, net .........................................................................................................  $ 

20,813    $ 
10,458    
2,985    
2,699    
114    
466    
37,535    
(24,142)    
13,393    $ 

14,781 
10,326 
2,382 
1,910 
114 
515 
30,028 

(21,385) 
8,643 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Construction in progress costs at December 31, 2017 primarily relates to R&D equipment received but not placed in 

service. Construction in progress costs at December 31, 2016 primarily relates to software and system upgrades. 

Depreciation expense related to all depreciable property and equipment is presented in the following table. 

Years Ended December 31, 

2017 

2016 

2015 

(In thousands) 

Depreciation expense ..........................................................................................  $

3,035    $

3,049    $

3,203 

Accrued Expenses and Other Current Liabilities 

Accrued expenses and other current liabilities by category are presented in the following table. 

Payroll and commissions payable .......................................................................................................  $ 
Other accrued expenses and current liabilities ....................................................................................  

Unbilled project costs .........................................................................................................................  

Total accrued expenses and other current liabilities ........................................................................  $ 

6,071    $
2,446    
805    

9,322    $

5,697 
2,253 
1,069 

9,019 

December 31,  
2017 

December 31,  
2016 

(In thousands) 

Deferred Revenue 

Deferred revenue by category are presented in the following table. 

December 31,  
2017 

December 31,  
2016 

(In thousands) 

Current deferred revenue 

Deferred license and development revenue, current ........................................................................  $ 
Deferred product revenue, current ...................................................................................................  

Total current deferred revenue ......................................................................................................  

Non-current deferred revenue 

Deferred license and development revenue, non-current ................................................................  
Deferred product revenue, non-current ...........................................................................................  

Total non-current deferred revenue ..............................................................................................  

Total deferred revenue ...............................................................................................................  $ 

5,000    $
611    

5,611    

58,958    
48    
59,006    
64,617    $

5,000 
1,201 

6,201 

63,958 
— 
63,958 
70,159 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Non-Current Liabilities 

Other non-current liabilities consisted only of deferred rent expense. 

Deferred rent expense, non-current ..................................................................................................   $ 

358    $ 

554 

Accumulated Other Comprehensive Loss  

Changes in accumulated other comprehensive loss by component are presented in the following table. 

December 31,  
2017 

December 31,  
2016 

(In thousands) 

Foreign Currency 
Translation 
Adjustments 

Unrealized Losses 
on Investments 

(In thousands) 

Total 
Accumulated 
Other 
Comprehensive 
Loss 

Balance, December 31, 2015 ..............................................................................  $ 

Other comprehensive loss, net.......................................................................... 

Balance, December 31, 2016 ..............................................................................  

Other comprehensive income (loss), net .......................................................... 

Balance, December 31, 2017 ..............................................................................  $ 

(63)    $ 
(27)    
(90)    
57    
(33)    $ 

(1)    $ 
(27)    
(28)    
(64)    
(92)    $ 

(64) 

(54) 

(118) 

(7) 

(125) 

There were no reclassifications of amounts out of accumulated other comprehensive loss, as there have been no sales 
of securities or translation adjustments that impacted other comprehensive loss during the years presented. The tax impact of 
the changes in accumulated other comprehensive loss was not material. 

Advertising Expense 

Advertising expense is charged to operations during the year in which it is incurred. Total advertising expense was not 

material for the years ended December 31, 2017, 2016 and 2015. 

Note 5 — Investments and Fair Value Measurements  

The Company’s cash, cash equivalents and short-term investments are presented in the following table. 

December 31,  
2017 

December 31,  
2016 

Cash and cash equivalents ......................................................................................................................  $ 
Short-term investments ...........................................................................................................................  

(In thousands) 

27,780    $ 
70,020    

61,364 
39,073 

Total cash, cash equivalents and marketable securities .......................................................................  $ 

97,800    $ 

100,437 

As of December 31, 2017, available-for-sale investments of $0.3 million were reported in Cash and cash equivalents 
on the Consolidated Balance Sheets. As of December 31, 2016, all available-for-sale investments were reported in Short-term 
investments on the Consolidated Balance Sheets. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Available-for-Sale Investments 

The Company’s investments are all classified as available-for-sale. As of December 31, 2017 and 2016, all available-
for-sale investments were classified as short-term, with maturities less than 12 months. There were no sales of available-for-
sale investments during the years ended December 31, 2017 and 2016. 

Available-for-sale investments as of December 31, 2017 and 2016 are presented in the following tables. 

December 31, 2017 

Amortized 
Cost 

Gross 
Unrealized 
Holding Gains 

Gross 
Unrealized 
Holding Losses 

Fair Value 

U.S. Treasury securities ........................................................  $ 

Corporate notes and bonds ...................................................  

Municipal notes and bonds ...................................................  

Total available-for-sale investments ..................................  $ 

16,755    $ 
53,367    
247    

70,369    $ 

(In thousands) 

—    $ 
—    
—    

—    $ 

December 31, 2016 

(14)    $
(77)    
—    

(91)    $

16,741 
53,290 
247 

70,278 

Amortized 
Cost 

Gross 
Unrealized 
Holding Gains 

Gross 
Unrealized 
Holding Losses 

Fair Value 

Corporate notes and bonds ...................................................  $ 

Total available-for-sale investments ..................................  $ 

39,100    $ 

39,100    $ 

(In thousands) 

6    $

6    $

(33 )    $

(33 )    $

39,073  

39,073  

The Company monitors investments for other-than-temporary impairment. It was determined that unrealized gains and 
losses at December 31, 2017 and 2016, are temporary in nature, because the changes in market value for these securities 
resulted from fluctuating interest rates, rather than a deterioration of the credit worthiness of the issuers. The Company is 
unlikely to experience gains or losses if these securities are held to maturity. In the event that the Company disposes of these 
securities before maturity, it is expected that the realized gains or losses, if any, will be immaterial. 

Expected maturities can differ from contractual maturities because borrowers may have the right to prepay obligations 
without prepayment penalties. The amortized cost and fair value of available-for-sale securities that had stated maturities as 
of December 31, 2017 are shown by contractual maturity in the following table. 

December 31, 2017 

Amortized Cost 

Fair Value 

(In thousands) 

Due in one year or less .......................................................................................................................  $ 

70,369    $

70,278 

Fair Value of Financial Instruments 

The Company follows the authoritative guidance for fair value measurements and disclosures that, among other things, 
defines fair value, establishes a consistent framework for measuring fair value, and expands disclosure for each major asset 
and liability category measured at fair value on either a recurring or nonrecurring basis. Fair value is defined as an exit price 
that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As 
such, fair value is a market-based measurement that should be determined based on assumptions that market participants 
would use in pricing an asset or liability. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Level 1 — Quoted prices (unadjusted) in active markets for identical assets or liabilities; 
Level 2 — Inputs other than quoted prices included within Level 1 that are either directly or indirectly observable; and 
Level 3 — Unobservable inputs in which little or no market activity exists, therefore requiring an entity to develop its 

own assumptions that market participants would use in pricing. 

The carrying values of cash and cash equivalents, restricted cash, accounts receivable, unbilled receivables, cost and 
estimated earnings in excess of billings, accounts payable, and other accrued expenses approximate fair value due to the 
short-term maturity of those instruments. For the Company’s investments in available-for-sale securities, if quoted prices in 
active markets for identical investments are not available to determine fair value (Level 1), then the Company uses quoted 
prices for similar assets or inputs other than quoted prices that are observable either directly or indirectly (Level 2). The 
investments included in Level 2 consist of corporate notes and bonds, municipal notes and bonds and U.S. Treasury securities.  

The fair value of financial assets and liabilities measured on a recurring basis is presented in the following tables. 

Fair Value Measurement at Reporting Date Using 

December 31,  
2017 

Level 1 
Inputs 

Level 2 
Inputs 

Level 3 
Inputs 

(In thousands) 

Assets: 

Cash equivalents 

Corporate notes and bonds ................................................  $ 

Total cash equivalents ....................................................  

258    $ 

258    

Short-term investments 

U.S. Treasury securities ....................................................  

Corporate notes and bonds ................................................  

Municipal notes and bonds ................................................  

Total short-term investments ..........................................  

Total assets...................................................................  $ 

16,741    
53,032    
247    

70,020    
70,278    $ 

—    $

—    

—    
—    
—    

—    
—    $

258    $ 

258    

16,741    
53,032    
247    

70,020    
70,278    $ 

— 

— 

— 
— 
— 

— 
— 

Fair Value Measurement at Reporting Date Using 

December 31,  
2016 

Level 1 
Inputs 

Level 2 
Inputs 

Level 3 
Inputs 

(In thousands) 

Assets: 

Short-term investments 

Corporate notes and bonds ................................................  $ 

Total short-term investments ..........................................  

Total assets...................................................................  $ 

39,073    $ 

39,073    

39,073    $ 

—    $

—    

—    $

39,073    $ 

39,073    

39,073    $ 

— 

— 

— 

During the years ended December 31, 2017 and 2016, the Company had no transfers of financial assets and liabilities 

between Level 1 and Level 2. 

The fair value and gross unrealized losses on the available-for-sale securities that have been in a continuous unrealized 
loss position, aggregated by type of investment instrument as of December 31, 2017 and 2016 are summarized in the following 
table. All of the Company’s available-for-sale investments were short-term with maturities less than 12 months. Available-
for-sale investments that were in an unrealized gain position have been excluded from the following table. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

December 31, 2017 

December 31, 2016 

Fair Value 

Gross 
Unrealized 
Losses 

Fair Value 

Gross  
Unrealized  
Losses 

U.S. Treasury securities ........................................................  $ 
Corporate notes and bonds ...................................................  

Municipal notes and bonds ...................................................  

Total available-for-sale investments ..................................  $ 

10,162    $ 
53,222    
247    

63,631    $ 

(In thousands) 

(14)    $
(77)    
— 

(91)    $

—    $ 

29,667    
—    

29,667    $ 

— 

(33) 
— 

(33) 

Note 6 — Goodwill and Intangible Assets 

Goodwill 

The net carrying amount of goodwill as of December 31, 2017 and 2016 was $12.8 million. Goodwill resulted from 
the Company’s acquisition of Pump Engineering, LLC in December 2009. The Company’s annual impairment test performed 
as of July 1, 2017 determined that goodwill was not impaired. As of December 31, 2017 and 2016, no impairment of goodwill 
has been recorded in the accompanying Consolidated Financial Statements. 

Other Intangible Assets 

The components of identifiable intangible assets, all of which are finite-lived, as of the date indicated were as follows 

in the table below. All intangible assets are amortized on a straight-line basis over their useful life. 

December 31, 2017 

Gross 
Carrying 
Amount 

Accumulated 
Amortization 

Accumulated 
Impairment 
Losses 

Net 
Carrying 
Amount 

Weighted 
Average 
Useful Life 

(In thousands, except for weighted average useful life) 

Developed technology ............................  $ 

Patents ....................................................  

Total ....................................................  $ 

6,100    $ 
585    
6,685    $ 

(4,931)    $
(443)    
(5,374)    $

—    $ 
(42)    
(42)    $ 

1,169    
100     
1,269    

10 

18 

December 31, 2016 

Gross 
Carrying 
Amount 

Accumulated 
Amortization 

Accumulated 
Impairment 
Losses 

Net 
Carrying 
Amount 

Weighted 
Average 
Useful Life 

(In thousands, except for weighted average useful life) 

Developed technology ............................  $ 

Patents ....................................................  

Total ....................................................  $ 

6,100    $ 
585    
6,685    $ 

(4,321)    $
(422)    
(4,743)    $

—    $ 
(42)    
(42)    $ 

1,779    
121     
1,900    

10 

18 

Accumulated impairment losses for patents at December 31, 2017 and 2016 include impairment losses from 2007 and 

2010. No other impairment of intangible assets was identified during the periods presented for intangible assets. 

Amortization of intangibles was $0.6 million for each of the years ended December 31, 2017, 2016 and 2015. 

Future estimated amortization expense as of December 31, 2017 on intangible assets is presented in the following 

table. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Future 
Amortization 

(In thousands) 

Year: 

2018 .............................................................................................................................................................................    $ 
2019 .............................................................................................................................................................................    
2020 .............................................................................................................................................................................    
2021 .............................................................................................................................................................................    
2022 .............................................................................................................................................................................    
Thereafter .....................................................................................................................................................................    

Total ..........................................................................................................................................................................    $ 

629 
575 
16 
12 
11 
26 
1,269 

Note 7 — Long-term Debt and Lines of Credit  

Installment Loan 

In March 2015, the Company entered into a loan agreement with a financial institution for a $55 thousand fixed-rate 
installment loan with an annual interest rate of 6.35%. The loan is payable in equal monthly installments and matures on 
April 2, 2020. The note is secured by the asset purchased. 

Long-term debt as of December 31, 2017 and 2016 is presented in the following table. 

Loan payable ..........................................................................................................................................  $ 
Less: current portion ...............................................................................................................................  

Total long-term debt ............................................................................................................................  $ 

27    $ 
(11)    

16    $ 

38 

(11) 

27 

December 31, 
2017 

December 31, 
2016 

(In thousands) 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Future minimum principal payments due under long-term debt arrangements as of December 31, 2017 is presented in 

the following table. 

Year: 

   Future Minimum 
Payments 

(In thousands) 

2018 ...............................................................................................................................................................................  $ 

2019 ...............................................................................................................................................................................  

2020 ...............................................................................................................................................................................  

Total ............................................................................................................................................................................  $ 

11 
12  
4  

27 

Loans and Stand-by Letters of Credit 

Loan Agreement 

In June 2012, the Company entered into a loan agreement with a financial institution (“Financial Institution 1”). The 
loan agreement was amended in June 2015, (as amended, the “Loan Agreement”). The Loan Agreement provided for a total 
available credit line of $16.0 million. Under the Loan Agreement, the Company was allowed to draw advances not to exceed 
the lesser of the $16.0 million credit line or the credit line minus all outstanding revolving loans. Revolving loans could be 
in the form of a base rate loan that bore interest equal to the prime rate or a Eurodollar loan that bore interest equal to the 
adjusted LIBOR rate plus 1.25%. The Loan Agreement was terminated in January 2017.  

Loan and Pledge Agreement 

On January 27, 2017, the Company entered into a loan and pledge agreement (the “Loan and Pledge Agreement”) with 
a financial institution (“Financial Institution 2”). The Loan and Pledge Agreement provides for a committed revolving credit 
line of $16.0 million and an uncommitted revolving credit line of $4.0 million. Under the Loan and Pledge Agreement, the 
Company is allowed to borrow and request letters of credit against the eligible assets held from time to time in the pledged 
account maintained with Financial Institution 2. Revolving loans incur interest per annum at a base rate equal to the LIBOR 
rate plus 1.5%. Any default bears the aforementioned interest rate plus an additional 2%. The unused portion of the credit 
line is subject to a fee equal to the product of 0.2% per annum multiplied by the difference, if positive, between $16.0 million 
and the average daily balance of all advances under the committed facility plus aggregate average daily undrawn amounts of 
all letters of credit issued under the committed facility during the immediately preceding month or portion thereof. The Loan 
and Pledge Agreement was amended on March 17, 2017 to increase the amount of allowable stand-by letters of credit held 
with financial institutions other than Financial Institution 2 from $4.1 million to $5.1 million. 

Stand-by Letters of Credit 

In connection with the Loan Agreement, Financial Institution 1 issued stand-by letters of credit to the Company that 
were subject to customary fees and expenses for issuance or renewal. The unused portion of the credit facility was subject to 
a facility fee in an amount equal to 0.25% per annum of the average unused portion of the revolving line. The Loan Agreement 
required the Company to maintain a cash collateral balance equal to 101% of all outstanding advances and all outstanding 
stand-by letters of credit collateralized by the line of credit. With the termination of the Loan Agreement, the cash collateral 
requirement was increased to 105% on all stand-by letters of credit and corporate credit cards at Financial Institution 1. 

- 74 - 

 
 
 
  
  
 
ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

In  September  2016,  Financial  Institution  2  issued  stand-by  letters  of  credit  to  the  Company  that  were  subject  to 
customary fees and expenses for issuance or renewal. Initially, Financial Institution 2 required a cash collateral equal to the 
full outstanding amount of the stand-by letters of credit until the Loan and Pledge Agreement was put in place on January 27, 
2017. As of that same date, this cash collateral requirement was removed when the Company entered into a loan and pledge 
agreement with Financial Institution 2 (see Loan and Pledge Agreement above) and replaced with pledged U.S. Investments 
held at Financial Institution 2 equal to the full outstanding amount of the stand-by letters of credit. These stand-by letters of 
credit are subject to fees, in an amount equal to 0.7% per annum of the face amount of the letter of credit, that are payable 
quarterly and are non-refundable. 

In  October  2016,  the  Company  entered  into  stand-by  letters  of  credit  with  a  financial  institution  (“Financial 
Institution 3”). Financial Institution 3’s stand-by letters of credit are secured by a cash collateral balance required equal to 
the full outstanding amount of the stand-by letters of credit. 

The financial institutions where the outstanding amounts of stand-by letters of credit are collateralized by restricted 

cash or pledged U.S. investments are presented in the following table. 

December 31, 
2017 

December 31, 
2016 

(In thousands) 

Financial Institution 1 .........................................................................................................................  $ 

Financial Institution 2 .........................................................................................................................  

Financial Institution 3 .........................................................................................................................  

Total ................................................................................................................................................  $ 

1,687    $ 
7,745    
990    

10,422    $ 

3,080 
283 
990 

4,353 

The Company’s total restricted cash balances by financial institution are presented in the following table. 

December 31, 
2017 

December 31, 
2016 

(In thousands) 

Financial Institution 1 .........................................................................................................................  $ 

Financial Institution 2 (1) ......................................................................................................................  

Financial Institution 3 .........................................................................................................................  

Financial Institution 4 .........................................................................................................................  

Total ................................................................................................................................................  $ 

1,771    $ 
—    
990    
85    

2,846    $ 

3,111 
283 
990 
— 

4,384 

____________ 

 (1)    Financial Institution 2 requires pledged U.S. Investments in lieu of restricted cash balances as of January 27, 2017. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Note 8 — Commitments and Contingencies  

Operating Lease Obligations 

The Company leases facilities under fixed non-cancellable operating leases that expire on various dates through July 

2021. Future minimum lease payments are presented in the following table. 

Lease Amounts 

(In thousands) 

Year: 

2018 ...............................................................................................................................................................................  $ 

2019 ...............................................................................................................................................................................  

2020 ...............................................................................................................................................................................  
2021 ...............................................................................................................................................................................  

Total ............................................................................................................................................................................  $ 

1,788  
1,565 
150 
34 

3,537  

In October 2017, the Company entered into a sublease agreement for office space in Houston, Texas. The sublease 

agreement is for a term of 3 years commencing in November 2017.  

Rent and lease expense related to all of the Company’s leased property is presented in the following table. 

Years Ended December 31, 

2017 

2016 

2015 

(In thousands) 

Rent and lease expense ......................................................................................  $ 

1,699 

  $ 

1,422 

  $ 

1,485 

Warranty 

Changes in the Company’s accrued product warranty reserve are presented in the following table. 

Years Ended December 31, 

2017 

2016 

2015 

(In thousands) 

Balance, beginning of year .................................................................................  $

Warranty costs charged to cost of revenue ......................................................  

Utilization charges against reserve ..................................................................  

Release of accrual related to expired warranties .............................................  

Balance, end of year ...........................................................................................  $

406    $
246    
(86)    
(200)    

366    $

461    $
208    
(27)    
(236)    

406    $

755 
135 

(34) 

(395) 

461 

During  the  year  ended  December  31,  2015,  the  Company  adjusted  previously  established  warranty  reserves.  The 

adjustment related to expired warranties which increased gross profit and reduced net loss by $0.4 million. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Purchase Obligations 

The Company has purchase order arrangements with its vendors for which the Company has not received the related 
goods or services as of December 31, 2017. These arrangements are subject to change based on the Company’s sales demand 
forecasts,  and  the  Company  has  the  right  to  cancel  the  arrangements  prior  to  the  date  of  delivery.  The  majority  of  these 
purchase order arrangements were related to various raw materials and components parts. As of December 31, 2017, the 
Company had approximately $4.5 million of open cancellable purchase order arrangements related primarily to materials and 
parts. 

Guarantees 

The Company enters into indemnification provisions under its agreements with other companies in the ordinary course 
of business, typically with customers. Under these provisions, the Company generally indemnifies and holds harmless the 
indemnified party for losses suffered or incurred by the indemnified party as a result of the Company’s activities, generally 
limited to personal injury and property damage caused by the Company’s employees at a customer’s desalination plant in 
proportion to the employee’s percentage of fault for the accident. Damages incurred for these indemnifications would be 
covered by the Company’s general liability insurance to the extent provided by the policy limitations. The Company has not 
incurred  material  costs  to  defend  lawsuits  or  settle  claims  related  to  these  indemnification  agreements.  As  a  result,  the 
estimated  fair  value  of  these  agreements  is  not  material.  Accordingly,  the  Company  had  no  liabilities  recorded  for  these 
agreements as of December 31, 2017 and 2016. 

In  certain  cases,  the  Company  issues  warranty  and  product  performance  guarantees  to  its  customers  for  amounts 
generally equal to 10% or less of the total sales agreement to endorse the execution of product delivery and the warranty of 
design work, fabrication, and operating performance of our devices. These guarantees are generally stand-by letters of credit 
that typically remain in place for periods ranging up to 24 months, and in some cases up to 68 months. All stand-by letters of 
credit at December 31, 2017 and 2016, was $10.4 million and $4.4 million, respectively. See Note 7, “Long-term Debt and 
Lines of Credit,” for additional information about the Company’s stand-by letters of credit arrangements. 

- 77 - 

 
 
 
 
 
ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Note 9 — Income Taxes 

The Company’s U.S. and foreign components of consolidated income (loss) before income taxes and the benefit from 

income taxes is presented in the following table. 

Years Ended December 31, 

2017 

2016 

2015 

(In thousands) 

Income (loss) before income taxes: 

U.S. ................................................................................................................  $ 
Foreign ........................................................................................................... 

Total income (loss) before income taxes .....................................................  $ 

   $

11,992 
(7,726)    
4,266 

   $

   $

6,158 
(5,514)    
644 

   $

Current tax provision (benefit): 

Federal ...........................................................................................................  $ 
State ............................................................................................................... 
Foreign ........................................................................................................... 

Current tax provision ...................................................................................  $ 

441 
12 
18 
471 

   $

   $

Deferred tax (benefit) provision: 

Federal ...........................................................................................................  $ 
State ............................................................................................................... 
Foreign ........................................................................................................... 

Total deferred tax benefit ............................................................................  $ 

Total benefit for income taxes ..................................................................  $ 

(8,997)     $
(1,138)    
1,270 
(8,865)     $

(8,394)     $

— 
16 
46 
62 

   $

   $

   $

248 
3 
(703)    
(452)     $

(390)     $

(7,566) 
(4,406) 
(11,972) 

— 
(3) 
20 
17 

225 
(17) 
(559) 
(351) 

(334) 

On December 22, 2017, President Trump signed into law the Tax Act, which significantly changes existing U.S. tax 
laws, including a reduction in the corporate tax rate from 35% to 21%, a move from a worldwide tax system to a territorial 
system, as well as other changes. As a result of enactment of the legislation, the Company incurred a one-time income tax 
expense  during  the  fourth  quarter  of 2017  of  $7.0  million  related  to  the  deemed  repatriation  tax  on  accumulated  foreign 
earnings (of which $0.3 million is a cash charge and the remaining $6.7 million represents a non-cash discrete tax expense 
largely from the utilization of net operating loss carryovers). The Company will continue to review and refine this amount as 
additional guidance is provided on the taxation of deemed repatriation income through the filing of the 2017 U.S. federal 
income tax return. The Company also incurred a non-cash income tax expense of $2.5 million related to the remeasurement 
of certain deferred tax assets and liabilities based on the recently enacted rates from the Tax Act. 

The Company continues to evaluate the impact of the tax law changes related to state income taxes, the new income 
tax provisions related to global intangible low-taxed income and deductions related to foreign derived intangible income. The 
Company continues to assert that the accumulated foreign earnings are permanently reinvested. The Company should have 
no U.S. federal income tax obligation should the Company decide in the future to repatriate its accumulated foreign earnings. 
The Company has not estimated what the future foreign income tax or state income tax impact will be if the Company decides 
to  repatriate  its  accumulate  foreign  earnings  in  the  future.  As  of  December  31,  2017,  the  Company  did  not  record  any 
provisional estimates related to the Tax Act. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

A reconciliation of income taxes computed at the statutory federal income tax rate to the effective tax rate implied by 

the accompanying Statements of Operations is presented in the following table. 

Years Ended December 31, 

2017 

2016 

2015 

U.S. federal taxes at statutory rate .....................................................................  

State income tax, net of federal benefit .............................................................  

Deemed repatriation transition tax .....................................................................  

Deferred tax remeasurement - Change in tax rates ............................................  

Foreign rate differential .....................................................................................  

Stock-based compensation ................................................................................  

Non-deductible expenses ...................................................................................  

Federal research credits .....................................................................................  

Valuation allowance ..........................................................................................  

Other ..................................................................................................................  

Effective tax rate ............................................................................................  

34 %    
3 %    
165 %    
55 %    
44 %    
(14)%    
2 %    
(9)%    
(476)%    
(1)%    
(197)%    

34 %    
3 %    
— %    
— %    
359 %    
(1)%    
13 %    
(64)%    
(405)%    
— %    
(61)%    

34 % 

— % 

— % 

— % 

(17)% 

(8)% 

— % 

2 % 

(9)% 

1 % 

3 % 

The Company’s total deferred tax assets and liabilities is presented in the following table. 

December 31,  
2017 

December 31,  
2016 

(In thousands) 

Deferred tax assets: 

Net operating loss carry forwards ...................................................................................................  $ 

Accruals and reserves ......................................................................................................................  

Research and development credit carry forwards ............................................................................  

Acquired intangibles .......................................................................................................................  

Charitable contributions ..................................................................................................................  

Total deferred tax assets ...............................................................................................................  

Valuation allowance ........................................................................................................................  

Net deferred tax assets ...............................................................................................................  

Deferred tax liabilities: 

Depreciation on property and equipment ........................................................................................  

Unrecognized gain on translation of foreign currency ....................................................................  

Goodwill .........................................................................................................................................  

Total deferred tax liabilities ..........................................................................................................  

Net deferred tax assets (liabilities) .............................................................................................  $ 

5,918    $ 
2,816    
3,957    
909    
11    
13,611    
(3,411)    

10,200    

(650)    
(5)    
(1,643)    

(2,298)    
7,902    $ 

14,082 
4,896 
2,609 
1,415 
5 
23,007 

(21,067) 

1,940 

(630) 

(40) 

(2,233) 

(2,903) 

(963) 

As reported on the balance sheet: 

Non-current assets ...........................................................................................................................  $ 

Non-current liabilities .....................................................................................................................  

Net deferred tax assets (liabilities)................................................................................................  $ 

7,902    $ 
—    
7,902    $ 

1,270 

(2,233) 

(963) 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

The Company had gross deferred tax assets of approximately $13.6 million and $23.0 million at December 31, 2017 
and 2016, respectively, relating principally to accrued expenses and tax effects of net operating loss and tax credit carry-
forwards. In asserting the recoverability of deferred tax assets, management considers whether it is more likely than not that 
the assets will be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable 
income during the periods in which those temporary differences become deductible. 

The Company assesses the available positive and negative evidence to estimate if sufficient future taxable income will 
be generated to use the existing deferred tax assets. In making such a determination, we consider all available positive and 
negative  evidence  including  recent  results  of  operations,  scheduled  reversals  of  deferred  tax  liabilities,  projected  future 
income, and available tax planning strategies.  

In the U.S., significant pieces of objective positive evidence evaluated were the cumulative profit incurred in the U.S. 
entity. The Company’s U.S. entity emerged out of 12 quarters of cumulative loss in the third quarter of 2017 into a position 
of cumulative income, and followed in the fourth quarter of 2017 with strong results. The forecast for the Company’s U.S. 
entity indicates that it is likely to continue to be in a profitable position, going forward. In addition, in December 2017, due 
to the Tax Act, the Company’s U.S. entity had additional deemed repatriation income of $21.0 million. The Company’s U.S. 
entity plans to use its net operating loss carryforwards to settle this transition tax, and, therefore, expects that it is more likely 
than not that deferred tax assets will be used up by 2020. The impact of the Tax Act was a new piece of heavily weighted 
evidence in the fourth quarter of 2017. 

In Ireland, a significant piece of negative evidence was the cumulative losses of $16.6 million that incurred in the 
Company’s Irish entity since inception over the three year period ended December 31, 2017. A cumulative loss in recent 
years is a significant piece of negative evidence that is difficult to overcome, and there was limited positive evidence. 

On the basis of this evaluation, as of December 31, 2017, the Company released the valuation allowance, totaling 
$10.1 million on its U.S. federal (“Federal”) deferred tax assets and all of the Company’s U.S. state deferred tax assets with 
the  exception  of  the  State  of  California  (“California”)  Research  and  Development  (“R&D”)  credit  carryovers.  As  of 
December 31, 2017, the Company continues to maintain a valuation allowance on its California R&D credit carryovers of 
approximately  $1.4  million.  The  Company  will  maintain  a  valuation  allowance  on  its  California  R&D  credit  carryovers 
because it is more likely than not, based on scheduling of utilization, that utilization would likely not occur until 2022, and it 
is projected at that time that the Company will only be utilizing new California R&D credits as they are generated, that is, 
not resulting in a net reduction. The Company’s policy with respect to California R&D credits is that they are utilized on a 
last-in first-out basis.  

In addition, as of December 31, 2017, the Company established a valuation allowance on its Irish entity’s deferred tax 
assets totaling $2.0 million. The valuation allowance represents a provision for uncertainty as to the realization of tax benefits 
from these deferred income tax assets. The Company will continue to evaluate the tax benefit uncertainty and will adjust, if 
warranted, the valuation allowance in future periods to the extent that the Company’s deferred income tax assets become 
more likely than not to be realizable. 

- 80 - 

 
 
 
 
 
ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

The following table presents the Company’s Federal, California, and foreign net operating loss carryforwards. 

Federal ................................................................................................................................................  $ 
California ............................................................................................................................................  

Ireland ................................................................................................................................................  

Total net operating loss carryforwards ............................................................................................  $ 

December 31,  
2017 

December 31,  
2016 

(In thousands) 

14,227    $ 
12,081    
16,644    

42,952    $ 

41,801 
14,009 
10,043 

65,853 

The net operating loss carryforwards, if not utilized, will begin to expire in 2019 for Federal, and 2031 for California. 
Utilization  of  the  net  operating  loss  carryforward  may  be  subject  to  a  substantial  annual  limitation  due  to  the  ownership 
change  limitations  provided  by  the  U.S.  Internal  Revenue  Code  (“IRC”)  and  similar  California  provisions.  The  annual 
limitation will result in the expiration of the net operating loss carryforwards before utilization. The Company has estimated 
the amount which may ultimately be realized and recorded deferred tax assets accordingly. The Ireland net operating loss 
carryforwards does not have an expiration date. 

The following table presents the Company’s Federal and California R&D credit, minimum tax credit and foreign tax 

credit carryforwards. 

Federal ..............................................................................................................................................   $ 
California ..........................................................................................................................................  

Total credit carryforwards .............................................................................................................  $ 

December 31,  
2017 

December 31,  
2016 

(In thousands) 

2,572    $ 
1,753    

4,325    $ 

1,635 
1,476 

3,111 

The federal R&D credit carryforwards, if not utilized, will start to expire in 2030. The foreign tax credit carryforwards 
will begin to expire in 2026. The federal minimum tax credit carryforward will be refunded if not utilized no later than 2021. 
The  California  credit  carryforwards do not expire.  Utilization  of  the  credit  carryforwards  may  be  subject  to  a  substantial 
annual limitation due to the ownership change limitations provided by the IRC and similar California provisions. 

Accounting for uncertain tax positions is based on judgment regarding the largest amount that is greater than 50% 
likely of being realized upon the ultimate settlement with a taxing authority. The aggregate changes in the balance of the 
gross unrecognized tax benefits is presented in the following table. 

December 31,  
2017 

December 31,  
2016 

(In thousands) 

Gross unrecognized tax benefits as of December 31, .........................................................................  $ 
Gross increases related to prior year tax position ............................................................................  

Gross increases related to current year tax position ........................................................................  

Gross unrecognized tax benefits as of December 31, .........................................................................  $ 

603    $
117    
191    

911    $

394 
— 
209 

603 

As  of  December  31,  2017,  the  Company  had  $0.9  million  of  unrecognized  tax benefits,  $0.5  million  of  which,  if 

recognized, would affect our effective tax rate. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

The Company adopted the accounting policy that interest and penalties are classified as part of its income taxes. There 

are no accrued interest or penalties associated with any unrecognized tax benefits. 

There  are  currently  no  examinations  for  Federal,  California  taxing  authorities,  and  foreign  tax  authorities.  The 
Company believes that, as of December 31, 2017, the gross unrecognized tax benefits will not materially change in the next 
twelve months. The Company believes that it has adequately provided for any reasonably foreseeable outcomes related to 
any tax audits and that any settlement will not have a material adverse effect on the consolidated financial position or results 
of operations. However, there can be no assurances as to the possible outcomes. 

Note 10 — Stockholder’s Equity  

Preferred Stock 

The Company has the authority to issue 10,000,000 shares of $0.001 par value preferred stock. The Board of Directors 
has the authority, without action by the Company’s stockholders, to designate and issue shares of preferred stock in one or 
more series. The Board of Directors is also authorized to designate the rights, preferences, and voting powers of each series 
of preferred stock, any or all of which may be greater than the rights of the common stock including restrictions of dividends 
on the common stock, dilution of the voting power of the common stock, reduction of the liquidation rights of the common 
stock, and delaying or preventing a change in control of the Company without further action by the Company’s stockholders. 
To  date,  the  Board  of  Directors  has  not  designated  any  rights,  preferences,  or  powers  of  any  preferred  stock,  and  as  of 
December 31, 2017 and 2016, no shares of preferred stock were issued or outstanding. 

Common Stock 

The Company has the authority to issue 200,000,000 shares of $0.001 par value common stock. Subject to the preferred 
rights of the holders of shares of any class or series of preferred stock as provided by the Board of Directors with respect to 
any such class or series of preferred stock, the holders of the common stock shall be entitled to receive dividends, as and 
when declared by the Board of Directors. In the event of any liquidation, dissolution, or winding up of the Company, whether 
voluntary or involuntary, after the distribution or payment to the holders of shares of any class or series of preferred stock as 
provided by the Board of Directors with respect to any such class or series of preferred stock, the remaining assets of the 
Company  available  for  distribution  to  stockholders  shall  be  distributed  among  and  paid  to  the  holders  of  common  stock 
ratably in proportion to the number of shares of common stock held by them. 

At  December 31, 2017,  58,168,433  shares were  issued  and 53,905,600  shares  were outstanding. At  December 31, 

2016, 56,884,207 shares were issued and 53,162,551 shares were outstanding. 

Stock Repurchase Program 

In  January  2016,  the  Board  of  Directors  authorized  a  stock  repurchase  program  under  which  the  Company,  at  the 
discretion of management, could repurchase up to $6.0 million in aggregate cost of the Company’s outstanding common 
stock through June 30, 2016 (the “January 2016 Authorization”). In May 2016, the Board of Directors rescinded the January 
2016  Authorization  and  authorized  a  new  stock  repurchase  program  under  which  the  Company,  at  the  discretion  of 
management, could repurchase up to $10.0 million in aggregate cost of the Company’s outstanding common stock through 
October  31,  2016  (the  “May  2016  Authorization”).  At  December  31,  2016,  673,700  shares,  at  an  aggregate  cost  of 
$4.1  million,  had  been  repurchased  under  the  January  2016  Authorization  and  568,500  shares,  at  an  aggregate  cost  of 
$5.3 million, had been repurchased under the May 2016 Authorization. The May 2016 Authorization expired in October 2016 
and there was no repurchase authorization in place at December 31, 2016. 

- 82 - 

 
 
 
ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

In  March  2017,  the  Board  of  Directors  authorized  a  stock  repurchase  program  under  which  the  Company,  at  the 
discretion of management, could repurchase up to $15.0 million in aggregate cost of the Company’s outstanding common 
stock  through  September  30,  2017  (the  “March  2017  Authorization”).  As  of  December  31,  2017,  541,177  shares,  at  an 
aggregate cost of $4.3 million had been repurchased under the March 2017 Authorization. The Company accounts for stock 
repurchases using the cost method. Cost includes fees charged in connection with acquiring the outstanding common stock. 

On March 7, 2018, the Board of Directors authorized a stock repurchase program under which the Company, at the 
discretion of management, may repurchase up to $10.0 million in aggregate cost of the Company’s outstanding common 
stock. Under the newly authorized repurchase program, purchases of shares of common stock may be made from time to time 
in the open market, or in privately negotiated transactions, in compliance with applicable state and federal securities laws. 
The timing and amounts of any purchases will be based on market conditions and other factors including price, regulatory 
requirements, and capital availability. The share buyback program does not obligate the Company to acquire any specific 
number of shares in any period, and may be expanded, extended, modified or discontinued at any time without prior notice. 

Under the Company’s stock repurchase programs, from March 2012 through December 31, 2017, the Company spent 
an aggregate $20.4 million to repurchase 4.3 million shares. In addition to repurchases under the Company’s stock repurchase 
programs, during the year ended December 31, 2017, the Company spent $0.3 million to settle employee tax withholding 
obligations  due  upon  the  vesting  of  RSUs  and  withheld  an  equivalent  value  of  shares  from  the  shares  provided  to  the 
employees upon vesting. During the years ended December 31, 2016 and 2015, the Company did not have to settle employee 
tax withholding obligations due upon the vesting of RSUs since there were no RSU vestings during these periods. 

Warrants 

There  were  no  warrants  outstanding  as  of  December  31,  2017.  All  outstanding  warrants  had  been  exercised  as  of 

December 31, 2015. 

Note 11 — Stock-based Compensation 

Stock Option Plans 

In June 2016, the stockholders approved the 2016 Incentive Plan (the “2016 Plan”), that permits the grant of stock 
options, stock appreciation rights (“SARs”), restricted stock (“RS, RSAs, or RSUs”), performance units, performance shares, 
and other stock-based awards to employees, officers, directors, and consultants. Prior to the approval of the 2016 Plan, the 
Company maintained the Amended and Restated 2008 Equity Incentive Plan (the “2008 Plan”). Stock-based awards granted 
under the Plan and the 2008 Plan, generally vest over 4 years and expire no more than 10 years after the date of grant. Subject 
to adjustments, as provided in the 2016 Plan, the number of shares of common stock initially authorized for issuance under 
the  2016  Plan was 4,441,083  shares (which  consist of 3,830,000 new  share  awards plus  611,083  share  awards  that were 
authorized and unissued under the 2008 Plan) plus up to 7,635,410 shares that were set aside for awards granted under the 
2008 Plan that are subsequently forfeited. The 2016 Plan supersedes all previously issued stock incentive plans (including 
the 2008 Plan) and is currently the only available plan from which awards may be granted. 

Shares available for grant under the Plan were 3,945,653 shares and 4,532,141 shares at December 31, 2017 and 2016, 

respectively. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Stock-based Compensation Expense 

Stock-based compensation expense related to the fair value measurement of awards granted to employees by financial 

line and by type of award is presented in the following table. 

Stock-based compensation expense by financial line: 

Cost of revenue ................................................................................................  $

General and administrative ...............................................................................  

Sales and marketing .........................................................................................  

Research and development ...............................................................................  

Total stock-based compensation expense ......................................................  $

Stock-based compensation expense by type of award: 

Options .............................................................................................................  $

RSUs ................................................................................................................  

Total stock-based compensation expense ......................................................  $

Years Ended December 31, 

2017 

2016 

2015 

(In thousands) 

158    $
2,218    
821    
890    
4,087    $

3,331    $
756    

4,087    $

113    $
2,057    
524    
569    
3,263    $

3,005    $
258    

3,263    $

130 
3,139 
436 
354 
4,059 

3,915 
144 

4,059 

The Company estimates forfeitures at the time of grant and revise those estimates periodically in subsequent periods 
if actual forfeitures differ from those estimates. The Company uses historical data to estimate pre-vesting option forfeitures 
and  record  stock-based  compensation  expense  only  for  those  awards  that  are  expected  to  vest.  All  stock-based  payment 
awards are amortized on a straight-line basis over the requisite service periods of the awards, which are generally the vesting 
periods.  If  the  Company’s  actual  forfeiture  rate  is  materially  different  from  its  estimate,  the  stock-based  compensation 
expense could be significantly different from what the Company has recorded in the current period. 

The estimated forfeiture rates used in determining the expense in the table above are presented in the following table. 

For years ended December 31, 

2017 

2016 

2015 

4-year options ........................................................................................................ 

16.275% 

13.513% 

13.737% 

1-year options ........................................................................................................ 

—% 

—% 

—% 

Share-based compensation cost related to unvested stock options and RSU’s will generally be amortized on a 
straight-line basis over the remaining average service period. The following table presents the unamortized compensation 
cost and weighted average service period of all unvested outstanding awards as of December 31, 2017. 

Stock options .....................................................................................................................................   $ 

RSUs .................................................................................................................................................  

4,964    
1,859    

2.3 

2.8 

Unamortized 
Compensation 
Costs 

(In thousands) 

Weighted 
Average Service 
Period 

(In years) 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Vested Stock Options and RSUs 

The total grant date fair value of stock options and RSUs vested during the period are presented in the following table. 

Stock options ...........................................................................................................  $ 

RSUs .......................................................................................................................  

Total grant date fair value of stock options and RSUs vested during the period ..  $ 

Stock Option Activity 

Years Ended December 31, 

2017 

2016 

2015 

(In thousands) 

3,375    $ 
783    

4,158    $ 

2,977     $
—    

2,977     $

4,657 
145 

4,802 

The following table summarizes the stock option activity under the 2016 Plan and 2008 Plan. 

Weighted 
Average 
Exercise 
Price 

Weighted 
Average 
Remaining 
Contractual 
Life (in Years) 

Aggregate 
Intrinsic 
Value (1) 

Shares 

(In thousands, except for weighted average exercise price and weighted average 
remaining contractual life) 

Balance, December 31, 2014 ................................................  

Granted ..............................................................................  

Exercised ...........................................................................  

Forfeited ............................................................................  

Balance, December 31, 2015 ................................................  

Granted ..............................................................................  

Exercised ...........................................................................  

Forfeited ............................................................................  

Balance, December 31, 2016 ................................................  

Granted ..............................................................................  

Exercised ...........................................................................  

Forfeited ............................................................................  

Balance, December 31, 2017 ................................................  

Vested and exercisable as of December 31, 2017 .................  

Vested and exercisable as of December 31, 2017 and 

6,276    $ 
2,612    
(350)    
(1,340)    

7,198    
904    
(1,936)    
(283)    

5,883    
677    
(1,226)    
(242)    

5,092    $ 

3,449    $ 

4.51    
3.01     
3.22     
3.18     

3.97     
8.63     
3.41     
5.30     

4.81     
9.57     
4.49     
6.60     

5.43    

4.65    

   $ 

942 

14,665 

6,798 

17,735 

14,218 

6.6   $ 

5.8   $ 

expected to vest thereafter .................................................  

4,860    $ 

5.32    

6.5   $ 

17,372 

____________ 

 (1)   The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying options and the
fair value of the Company’s common stock at the time of exercise. The aggregate intrinsic value at December 31, 2017 
is calculated as the difference between the exercise price of the underlying options and the fair value of the Company’s
common stock as of the end of the period. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Restricted Stock Awards 

There were no RSAs outstanding as of December 31, 2017. 

Restricted Stock Units 

RSUs awarded in 2016 vests 25% on the first anniversary of the grant date and 1/48th monthly thereafter dependent 
upon continued employment. RSUs awarded in 2017 vests 25% annually over the 4 years from date of grant and is dependent 
upon continued employment. As RSUs vest, the units will be settled in shares of common stock based on a one-to-one ratio. 
The units were valued based on the market price on the date of grant. 

The following table summarizes the RSU activity under the 2016 Plan. 

Balance December 31, 2014 ...............................................................................................................  

Vested .............................................................................................................................................  

Balance, December 31, 2015 ..............................................................................................................  

Awarded ..........................................................................................................................................  

Balance, December 31, 2016 ..............................................................................................................  

Awarded ..........................................................................................................................................  

Vested .............................................................................................................................................  

Forfeited ..........................................................................................................................................  

Balance, December 31, 2017 ..............................................................................................................  

Fair Value Assumptions 

Stock Options 

Weighted 
Average 
Grant-Date 
Fair Value 

Shares 

(In thousands, except for weighted 
average grant-date fair value) 

28    $ 
(28)    

—    
214   

214    
162    
(91)    
(11)    

274    

5.27 
5.27 

— 
8.65 

8.65 
10.14 
8.65 
8.52 

9.54 

The fair value of stock options granted to employees is based on the Black-Scholes option pricing model. To determine 
the inputs for the Black-Scholes option pricing model, the Company is required to develop several assumptions, which are 
highly subjective. The Company determines these assumptions as follows: 

Expected Term: The Company uses its historical data to determine the expected term of options based on historical 
exercise data. As there was no historical exercise data for non-employee directors, the Company determines the expected 
term based on the simplified method. 

Expected Volatility: The Company determines expected volatility based on its historical data and the corresponding 

expected term that was determined using the Company’s historical exercise data. 

Risk-Free  Interest  Rate:  The  risk-free  rate  is  based  on  U.S.  Treasury  issues  with  remaining  terms  similar  to  the 

expected term on the stock options granted. 

Dividend Yield: The Company has never declared or paid any cash dividends and do not plan to pay cash dividends in 

the foreseeable future; therefore, the Company uses an expected dividend yield of zero in the valuation model. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

The estimated grant date fair values of stock options granted to employees were calculated using the Black-Scholes 

option pricing model based on the assumptions in the following table. 

Weighted average expected life (years) .................................................................  

For years ended December 31, 

2017 

4.50 

2016 

4.38 

2015 

4.71 

Weighted average expected volatility ....................................................................  
Risk-free interest rate ............................................................................................   1.64% – 1.99%     1.03% – 1.32%     1.12% – 2.19% 

80.22% 

61.79% 

80.35% 

Weighted average dividend yield ..........................................................................  

—% 

—% 

—% 

Restricted Stock Units 

The fair value of RSUs granted to employees is based on the Company’s common stock price on the date of grant. 

Awards Granted in 2018 

On February 1, 2018, the Company granted options and RSUs to certain officers and employees. The options and 

RSUs granted are presented in the following table. 

Options ...................................................................................  

RSUs ......................................................................................  

810,172    $ 
221,663    

7.50    
—     

4 years 

4 years 

Total ....................................................................................  

1,031,835      

Shares 

   Exercise Price 

   Vesting Term(1) 

Expiration from 
Date of Grant 

10 years 

** 

____________ 

**    Not applicable. 
(1)    Any unvested options and RSUs are forfeited upon the employee’s termination. 

Note 12 — Business Segment  

The Company is an energy solutions provider to industrial fluid flow markets worldwide. The Company manufactures 
and sells high-efficiency ERDs and pumps as well as related products and services. The Company’s chief operating decision-
maker (“CODM”) is the chief executive officer (“CEO”). 

The  Company’s  reportable  operating  segments  consist  of  the  Water  segment  and  the  Oil  &  Gas  segment.  These 
segments are based on the industries in which the products are sold, the type of energy recovery device sold, and the related 
products and services. The Water segment consists of revenue associated with products sold for use in reverse osmosis water 
desalination, as well as the related identifiable expenses. The Oil & Gas segment consists of product revenue associated with 
products sold for use in gas processing, chemical processing, and hydraulic fracturing and license and development revenue 
associated with hydraulic fracturing, as well as related identifiable expenses. Operating income for each segment excludes 
other income and expenses and certain expenses managed outside the operating segment. Costs excluded from operating 
income include various corporate expenses such as income taxes and other separately managed general and administrative 
expenses not related to the identified segments. Assets and liabilities are reviewed at the consolidated level by the CODM 
and are not accounted for by segment. The CODM allocates resources to and assesses the performance of each operating 
segment using information about its revenue and operating income (loss). 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

The summary of financial information by segment is presented in the following tables. 

Year Ended December 31, 2017 

Water 

Oil & Gas 

Total 

Product revenue ................................................................................................   $

Product cost of revenue ....................................................................................  

Product gross profit ........................................................................................  

(In thousands) 

54,301    $
16,032    
38,269    

3,855    $
3,029    
826    

License and development revenue ....................................................................  

—    

5,000    

Operating expenses: 

General and administrative .............................................................................  

Sales and marketing .......................................................................................  

Research and development .............................................................................  

Amortization of intangibles ............................................................................  

Operating expenses ......................................................................................  

1,401    
5,787    
1,064    
631    
8,883    

1,565    
2,228    
12,217    
—    
16,010    

Operating income (loss) ...................................................................................   $

29,386    $

(10,184)    

Less: Corporate operating expenses .................................................................  

Consolidated operating income ........................................................................  

Non-operating income ......................................................................................  

Income before income taxes ...........................................................................  

     $

58,156 
19,061 
39,095 

5,000 

2,966 
8,015 
13,281 
631 
24,893 

19,202 

15,926 

3,276 

680 

3,956 

Year Ended December 31, 2016 

Water 

Oil & Gas 

Total 

Product revenue ................................................................................................   $

Product cost of revenue ....................................................................................  

Product gross profit ........................................................................................  

(In thousands) 

47,545    $
16,353    
31,192    

2,170    $
1,496    
674    

License and development revenue ....................................................................  

—    

5,000    

Operating expenses: 

General and administrative .............................................................................  

Sales and marketing .......................................................................................  

Research and development .............................................................................  

Amortization of intangibles ............................................................................  

Operating expenses ......................................................................................  

1,081    
5,076    
1,331    
631    
8,119    

1,000    
2,985    
8,705    
—    
12,690    

Operating income (loss) ...................................................................................   $

23,073    $

(7,016)    

Less: Corporate operating expenses .................................................................  

Consolidated operating income ........................................................................  

Non-operating income ......................................................................................  

Income before income taxes ...........................................................................  

     $

49,715 
17,849 
31,866 

5,000 

2,081 
8,061 
10,036 
631 
20,809 

16,057 

15,700 

357 

287 

644 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Year Ended December 31, 2015 

Water 

Oil & Gas 

(In thousand) 

Total 

Product revenue ................................................................................................   $

Product cost of revenue ....................................................................................  

Product gross profit ........................................................................................  

43,530    $
19,045    
24,485    

141    $
66    
75    

License and development revenue ....................................................................  

—    

1,042    

Operating expenses: 

General and administrative .............................................................................  

Sales and marketing .......................................................................................  

Research and development .............................................................................  

Amortization of intangibles ............................................................................  

Operating expenses ......................................................................................  

936    
4,918    
1,126    
635    
7,615    

1,797    
4,070    
6,552    
—    
12,419    

Operating income (loss) ...................................................................................   $

16,870    $

(11,302)    

Less: Corporate operating expenses .................................................................  

Consolidated operating loss ..............................................................................  

Non-operating expense .....................................................................................  

Loss before income taxes ...............................................................................  

     $

Depreciation and amortization expense by segment is presented in the following table. 

43,671 
19,111 
24,560 

1,042 

2,733 
8,988 
7,678 
635 
20,034 

5,568 

17,359 

(11,791) 

(181) 

(11,972) 

Water ...................................................................................................................  $

Oil & Gas ............................................................................................................  

Corporate .............................................................................................................  

Total depreciation and amortization .................................................................  $

2,723    $
448    
495    
3,666    $

3,043    $
244    
393    
3,680    $

3,192 
203 
443 
3,838 

Years Ended December 31, 

2017 

2016 

2015 

(In thousands) 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Note 13 — Geographical Information and Concentrations  

Product Revenue 

The following geographic information includes product revenue to the Company’s U.S. and international customers 
based on the customers’ requested delivery locations, except for certain cases in which the customer directed the Company 
to deliver its products to a location that differs from the known ultimate location of use. In such cases, the ultimate location 
of use, rather than the delivery location, is reflected in the table below. 

Years Ended December 31, 

2017 

2016 

2015 

(In thousands, except for percentages) 

Product revenue by geographic location: 

United States ..................................................................................................  $

International ...................................................................................................  

Total product revenue ..................................................................................  $

1,839 
56,317 
58,156 

  $

  $

1,203 
48,512 
49,715 

  $

  $

2,861 
40,810 
43,671 

Product revenue by country: 

Egypt ..............................................................................................................  

Saudi Arabia ...................................................................................................  

China ..............................................................................................................  

Qatar ...............................................................................................................  

Oman ..............................................................................................................  

United Arab Emirates .....................................................................................  

Others (1) ..........................................................................................................  

Total ............................................................................................................  

____________ 

15%    
13 
9 
1 
9 
2 
51 
100%    

8%    
14 
13 
8 
3 
2 
52 
100%    

6% 
3 
8 
13 
12 
10 
48 

100% 

(1)   Includes remaining countries not separately disclosed. No country in this line item accounted for more than 10% of the

Company’s product revenue during any of the years presented. 

Product Revenue - Customer Concentration 

Product revenue from customers representing 10% or more of product revenue varies from period to period. For the 
year ended December 31, 2017, no customer represent 10% or more of the Company’s product revenue. For the years ended 
December 31, 2016 and 2015, one customer, the same customer in both years, represented 11% and 14% of the Company’s 
product revenues, respectively. 

License and Development 

One international Oil & Gas segment customer accounts for 100% of the Company’s license and development revenue 

for the years ended December 31, 2017, 2016 and 2015. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Customers 

The  Company’s  accounts  receivable  are  derived  from  sales  to  customers  located  around  the  world.  The  Company 
generally does not require collateral to support customer receivables, but frequently requires export letters of credit securing 
payment. The Company performs ongoing evaluations of its customers’ financial condition and periodically reviews credit 
risk associated with receivables. An allowance for doubtful accounts is determined with respect to receivable amounts that 
we have determined to be doubtful of collection using specific identification of doubtful accounts and an aging of receivables 
analysis based on invoice due dates. Actual collection losses may differ from the Company’s estimates, and such differences 
could be material to the financial position, results of operations, and cash flows. Uncollectible receivables are written off 
against  the  allowance  for  doubtful  accounts  when  all  efforts  to  collect  them  have  been  exhausted,  while  recoveries  are 
recognized when they are received. 

Customers accounting for 10% or more of the Company’s combined accounts receivable and unbilled receivables by 

segment are presented in the following table. 

Customer A .........................................................................................................  

Customer B ..........................................................................................................  

Customer C ..........................................................................................................  

Customer D .........................................................................................................  

Segment 

Water 

Water 

Water 

Water 

Customer E ..........................................................................................................   Oil & Gas 
____________ 

December 31,  
2017 

December 31,  
2016 

16%    
10 
11 
** 
26 

**  
**  
**  

13 % 
16  

**    Less than 10% 

Vendor Concentration 

Vendors accounting for 10% or more of the Company’s combined accounts payable by segment are presented in the 

following table. 

Vendor A .............................................................................................................   Oil & Gas 

Vendor B .............................................................................................................   Oil & Gas 
____________ 

11%    
** 

**  

18 % 

Segment 

December 31,  
2017 

December 31,  
2016 

**    Less than 10% 

Long-lived Assets 

All of the Company’s long-lived assets were located in the U.S. at December 31, 2017 and 2016. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Note 14 — Related Party 

The  Company  and  the  VorTeq  Licensee  signed  a  15-year  license  agreement  in  2016  which  provides  the  VorTeq 
Licensee with exclusive worldwide rights to the Company’s VorTeq for use in hydraulic fracturing onshore applications. In 
2016, the Company rented equipment and personnel to perform product testing from the VorTeq Licensee. The amount of 
payments made related to the rented equipment and personnel during the years ended December 31, 2017 and 2016, was 
$0.4 million and $0.3 million, respectively. 

In 2016, the Company extended a non-interest bearing 6-month term loan to one of its employees, which the Company 
and  employee  has  renewed  at  each  6-month  term  in  2016  and  2017.  The  balance  on  the  loan  was  $11  thousand  at  both 
December 31, 2017 and 2016. The current loan expired in February 2018 and was not renewed. 

In 2016, the Company entered into a lease agreement with EMS USA, Inc. for the use of office space. The President 
and Chief Executive Officer of EMS USA, Inc. is also a member of the Board of Directors of the Company. The lease was 
for a term of 90 days with continuation on a month-to-month basis thereafter, with each month being an “Additional Term.” 
The Company paid EMS USA, Inc. $5 thousand related to this agreement during the year ended December 31, 2016. The 
lease was terminated as of July 2016. 

Note 15 — VorTeq Partnership and License Agreement  

The Company’s VorTeq technology enables oilfield service hydraulic fracturing operators to isolate their high-pressure 
hydraulic fracturing pumps from fracturing fluid thereby reducing operating and capital costs. In 2014, the Company entered 
into  a  strategic  partnership  with  Liberty  Oil  Field  Services  (“Liberty”)  to  pilot  and  conduct  field  trials  with  the  VorTeq. 
Through this agreement, Liberty has the rights to lease up to twenty VorTeq missiles for a period of up to five years following 
commercialization. 

On October 14, 2015, the Company and the VorTeq Licensee signed a 15-year license agreement which provides the 
VorTeq  Licensee  with  exclusive  worldwide  rights  to  the  Company’s  VorTeq  for  use  in  hydraulic  fracturing  onshore 
applications (the “VorTeq License Agreement”). The license agreement provides a carve out for Liberty’s contractual rights 
to utilize the VorTeq. 

The VorTeq is made up of cartridges though which hydraulic fracturing fluid passes and a missile that houses the 
cartridges. The VorTeq License Agreement includes up to $125.0 million in consideration paid in stages: (i) a $75.0 million 
non-refundable upfront exclusivity payment; and (ii) two milestone payments of $25.0 million each upon achievement of 
successful tests in accord with KPIs specified in the agreement (“Milestone Payment 1 and 2”). After the milestone tests are 
achieved, the VorTeq Licensee will begin paying ongoing recurring royalty fees to the Company for supply and service of 
the cartridges based on the number of VorTeqs in operation which is subject to the greater of a minimum adoption curve or 
the adoption rate of the technology. 

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ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

The Company applied the guidance for multi-element arrangements in identifying deliverables, determining units of 
accounting, allocating total contract consideration to the units of accounting, and recognizing revenue. It was determined that 
the non-contingent deliverables (15-year license, exclusivity, support services) did not have stand-alone value individually, 
but did on a combined basis, and therefore represented a unit of accounting. The license will provide access to the technology 
over the term of the agreement and, along with the support, is the final deliverable in this unit of accounting. The $75.0 million 
upfront payment was allocated to this unit of accounting and revenue is recognized on a straight-line basis over the 15-year 
term of the license, starting from the day that the license agreement was signed and all services commenced. The Company 
recognized license and development revenue of $5.0 million in both 2017 and 2016, and the Company had a deferred revenue 
balance of $64.0 million and $69.0 million related to the upfront exclusivity license fee as of December 31, 2017 and 2016, 
respectively. The cartridge supply and support services are not assessed to have stand-alone value independent of each other 
and fees for these deliverables will be recognized as earned. 

Milestone Payment 1 of $25.0 million is payable upon a successful five (5) stage yard test at the VorTeq Licensee’s 
test facility. If a successful yard test is not achieved by the target date, the payment will be delayed until the successful yard 
test is achieved. The Milestone Payment 2 of $25.0 million is payable upon a successful twenty (20) stage hydraulic fracturing 
at one of the VorTeq Licensee’s customer’s live well. If success is not achieved by the target date, the payment will be delayed 
until  the  successful  live  well  test  is  achieved.  The  achievement  of  each  milestone  and  the  receipt  of  each  of  the  related 
payments are subject to a high degree of uncertainty. 

With respect to the Milestone Payments, the Company determined the payments did meet the definition of a substantive 
milestone. The factors considered in the determination that each milestone was substantive included whether the consideration 
earned from the achievement of the milestone is commensurate with the vendor’s performance or the enhancement of value; 
the degree of certainty in achieving the milestone; whether the milestone relates solely to past performance; and whether the 
consideration earned from the achievement of the milestone is reasonable relative to all of the deliverables and payment terms 
within the arrangement. For the years ending December 31, 2017 and 2016, no revenue was recognized for the Milestones 
Payments, nor in any other periods presented. 

Following Milestone Payment 2, the VorTeq Licensee will begin integrating the technology into its fleets. When the 
technology is integrated into the VorTeq Licensee’s fleets, the Company will begin providing cartridges and servicing those 
cartridges which will generate ongoing recurring royalty revenue. The recurring royalty fee per VorTeq in use will be paid 
based on the greater of a minimum adoption curve or the adoption rate of the technology. Further, a provision is made for an 
advance royalty payment to which recurring royalty fees will be applied. 

The  exclusive  nature  of  the  agreement  terminates  if  the  VorTeq  Licensee  does  not  meet  the  specified  minimum 
adoption curves. In the event the Company is not able to achieve successful test results in accordance with the KPIs, the 
exclusivity of the license continues for the full term for the VorTeq Licensee. 

With respect to the cartridges and associated service, royalty revenue will be recognized as royalties are earned, that 
is,  in  the  period  in  which  the  contingency  regarding  royalties  are  resolved  and  the  amount  of  royalties  are  fixed  and 
determinable based on the cartridges delivered. 

- 93 - 

 
 
 
 
 
ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Note 16 — Litigation  

The  Company  is  named  in  and  subject  to  various  proceedings  and  claims  in  connection  with  our  business.  The 
Company is contesting the allegations in these claims, and the Company believes that there are meritorious defenses in each 
of these matters. The outcome of matters the Company has been, and currently are, involved in cannot be determined at this 
time, and the results cannot be predicted with certainty. There can be no assurance that these matters will not have a material 
adverse effect on our results of operations in any future period and a significant judgment could have a material adverse 
impact on our financial condition, results of operations and cash flows. The Company may in the future become involved in 
additional litigation in the ordinary course of its business, including litigation that could be material to its business. 

The Company considers all claims on a quarterly basis and based on known facts assesses whether potential losses are 
considered reasonably possible, probable and estimable. Based upon this assessment, the Company then evaluates disclosure 
requirements and whether to accrue for such claims in its consolidated financial statements. The Company records a provision 
for a liability when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. 
These provisions are reviewed at least quarterly and adjusted to reflect the impacts of negotiations, settlements, rulings, advice 
of legal counsel and other information and events pertaining to a particular case. 

On September 10, 2014, the Company terminated the employment of its Senior Vice President, Sales, Borja Blanco, 
on the basis of breach of duty of trust and conduct leading to conflict of interest. On October 24, 2014, Mr. Blanco filed a 
labor claim against ERI Iberia in Madrid, Spain, challenging the fairness of his dismissal and seeking compensation (“Case 
1”). A hearing was held on November 13, 2015, after which the labor court ruled that it did not have jurisdiction over the 
matter. Mr. Blanco appealed and the appeals court reversed the labor court’s finding and instructed the labor court to make a 
ruling on the merits on November 21, 2017. On February 14, 2018, the Company received notice that the labor court issued 
a ruling in favor of Mr. Blanco declaring the termination an unjustified dismissal and ordered the Company to pay a dismissed 
severance. The Company appealed the decision on February 21, 2018.  The Company denies any allegations of wrongdoing 
and intends to continue to vigorously defend against this lawsuit.  Based on currently available information and review with 
outside counsel, the Company has estimated and accrued a potential loss. 

On November 24, 2014, Mr. Blanco filed a second action based on breach of contract theories in the same court as 
Case 1 (“Case 2”), but the cases are separate. In Case 2, Mr. Blanco seeks payment of an unpaid bonus, stock options, and 
non-compete compensation. The court ruled that this case is stayed until a final ruling is issued in Case 1. The Company 
denies any allegations of wrongdoing and intends to continue to vigorously defend against this lawsuit. Based on currently 
available  information  and  review with outside  counsel,  the  Company  has  determined  that  an  award  to  Mr.  Blanco is  not 
probable. While a loss may be reasonably possible, an estimate of loss, if any, cannot reasonably be determined at this time. 

On February 18 and July 27, 2016, two derivative action complaints were filed in connection with the Company’s 
previously reported stockholder class action lawsuit in the Superior Court for the State of California, County of Alameda 
where the Company was named as a nominal defendant under the captions, Goldberg v. Rooney, et al., HG 16804359, and 
Gerald McManiman v. Gay, et al., RG 16824960. The complaints have been consolidated under the caption, In Re Energy 
Recovery, Inc. Derivative Litigation, HG16804359. The consolidated complaint is styled as a derivative action being brought 
on behalf of the Company and generally alleges breach of fiduciary duty, waste of corporate assets, and unjust enrichment 
causes of action against the individually named defendants. The Company filed a Notice of Demurrer on July 6, 2017. After 
a hearing, the Court granted the Company’s demurrer but allowed plaintiff to amend its complaint. The plaintiff filed an 
amended  complaint  on  October  2,  2017.  The  Company  filed  another  Notice  of  Demurrer  to  the  amended  complaint  on 
October 12, 2017. The Company denies any allegations of wrongdoing and intends to continue to vigorously defend against 
this lawsuit. However, there is no assurance that the Company will be successful in its defense. Based on currently available 
information and review with outside counsel, the Company is not able to estimate a potential loss, if any, at this time. 

- 94 - 

 
 
 
ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Note 17 — Supplementary Data — Quarterly Financial Data (unaudited)  

The following tables present certain unaudited consolidated quarterly financial information for each of the four fiscal 
quarters in the periods ended December 31, 2017 and December 31, 2016. This quarterly information has been prepared on 
the  same  basis  as  the  audited  Consolidated  Financial  Statements  and  includes  all  adjustments,  consisting  only  of  normal 
recurring adjustments, necessary for a fair presentation of the information for the periods presented. The results for these 
quarterly periods are not necessarily indicative of the operating results for a full year or any future period. 

2017 QUARTERLY FINANCIAL DATA (1)  
(unaudited) 

Three Months Ended 

March 31,  
2017 

June 30,  
2017 

September 30,  
2017 

December 31,  
2017 

(In thousands, except per share amounts) 

Product revenue ....................................................................   $

Product cost of revenue ........................................................  

Product gross profit ........................................................  

12,261     $
4,610    
7,651    

10,922     $ 
3,530    
7,392    

13,834    $
4,254    
9,580    

21,139 
6,667 
14,472 

License and development revenue ........................................  

1,250    

1,250    

1,250    

1,250 

Operating expenses: 

General and administrative .............................................  

Sales and marketing ........................................................  

Research and development .............................................  

Amortization of intangible assets ...................................  

Total operating expenses ......................................................   $

Income (loss) from operations ..............................................   $

Provision for (benefit from) income taxes (2) .........................  $

Net income (loss) ..................................................................   $

Income (loss) per share: 

Basic ...............................................................................  $

Diluted ............................................................................  $

____________ 

4,408    
2,453    
2,509    
158    
9,528     $

(627 )    $

(77 )    $

(433 )    $

(0.01 )    $
(0.01 )    $

3,927    
2,174    
3,077    
158    
9,336     $ 

(694 )    $ 

(35 )    $ 

(548 )    $ 

(0.01 )    $ 
(0.01 )    $ 

4,034    
2,061    
3,038    
157    
9,290    $

1,540    $

66    $

1,706    $

0.03    $
0.03    $

4,985 
2,703 
4,819 
158 
12,665 

3,057 

(8,348) 

11,625 

0.22 
0.21 

(1)  
(2)  

Quarterly results may not add up to annual results due to rounding. 
One-time tax benefit from valuation allowance release in the fourth quarter of 2017. 

- 95 - 

 
 
 
 
 
 
  
  
  
  
  
  
  
  
    
    
    
  
  
    
    
    
  
    
    
    
  
    
    
    
 
 
 
ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

2016 QUARTERLY FINANCIAL DATA (1)  
(unaudited) 

Three Months Ended 

March 31,  
2016 

June 30,  
2016 

September 30,  
2016 

December 31,  
2016 

(In thousands, except per share amounts) 

Product revenue ....................................................................   $ 

Product cost of revenue ........................................................  

Product gross profit ........................................................  

10,051    $ 
3,674    
6,377    

11,973    $ 
4,236    
7,737    

11,024    $
3,968    
7,056    

16,667 
5,971 
10,696 

License and development revenue ........................................  

1,250    

1,250    

1,250    

1,250 

Operating expenses: 

General and administrative (2) ......................................  

Sales and marketing ........................................................  

Research and development .............................................  

Amortization of intangible assets ...................................  

Total operating expenses ......................................................   $ 

Income (loss) from operations ..............................................   $ 

Net income (loss) ..................................................................   $ 

Income (loss) per share: 

Basic ...............................................................................  $ 

Diluted ............................................................................  $ 

____________ 

4,884    
2,070    
2,665    
157    
9,776    $ 

(2,149)    $ 

(1,966)    $ 

(0.04)    $ 
(0.04)    $ 

3,992    
1,935    
2,422    
158    
8,507    $ 

480    $ 

456    $ 

0.01    $ 
0.01    $ 

3,971    
2,512    
2,319    
158    
8,960    $

(654)    $

(579)    $

(0.01)    $
(0.01)    $

3,779 
2,599 
2,730 
158 
9,266 

2,680 

3,123 

0.06 
0.06 

(1)   Quarterly results may not add up to annual results due to rounding. 
(2)  

The  increase  in  general  and  administrative  expense  in  the  first  quarter  of  2016  was  substantially  related  to  the
termination of the former General Counsel. 

Note 18 — Subsequent Events  

On February 24, 2018, the Company’s President and Chief Executive Officer, Joel Gay, announced his resignation 
citing the need to attend to personal family matters. The Board has accepted Mr. Gay’s resignation and appointed current 
Chief Financial Officer Chris Gannon as interim President and Chief Executive Officer effective immediately. 

- 96 - 

 
 
 
 
  
  
  
  
  
  
  
  
    
    
    
  
  
    
    
    
  
    
    
    
  
    
    
    
 
 
 
 
 
ENERGY RECOVERY, INC. 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Note 19 — Allowance for Doubtful Accounts  

The allowance for doubtful accounts activities are presented in the table below. 

Allowance for 
Doubtful Accounts 

(In thousands) 

As of December 31, 2015 ..........................................................................................................................................    $ 
Additions ................................................................................................................................................................    
Changes in Estimates (1) ..........................................................................................................................................    

As of December 31, 2016 ..........................................................................................................................................    
Additions ................................................................................................................................................................    
Changes in Estimates (1) ..........................................................................................................................................    
Deductions (2) ..........................................................................................................................................................    

As of December 31, 2017 ..........................................................................................................................................    $ 
____________ 

166 
76 

(112) 

130 
55 

(77) 

(5) 

103 

(1)  
(2)  

Collections of previously reserved accounts 
Uncollectible accounts written off, net of recoveries 

- 97 - 

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

None. 

Item 9A — Controls and Procedures 

Evaluation of Disclosure Controls and Procedures 

Our management has evaluated, with the participation of our Chief Executive Officer and Chief Financial Officer, the 
effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities 
Exchange Act of 1934, or “Exchange Act”) as of the end of the period covered by this Annual Report on Form 10-K. Based 
on  that  evaluation,  our  Chief  Executive  Officer  and  Chief  Financial  Officer  have  concluded  that,  as  of  such  date,  our 
disclosure controls and procedures were effective to ensure that information we are required to disclose in reports that we file 
or submit under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in 
Securities  and  Exchange  Commission  rules  and  forms  and  that  such  information  is  accumulated  and  communicated  to 
management as appropriate to allow for timely decisions regarding required disclosure. 

Our disclosure controls and procedures are designed to provide reasonable assurance of achieving their objectives, and 
our Chief Executive Officer and Chief Financial Officer have concluded that these controls and procedures are effective at 
the  “reasonable  assurance”  level.  Our  management,  including  the  Chief  Executive  Officer  and  Chief  Financial  Officer, 
believes  that  a  control  system,  no  matter  how  well  designed  and  operated,  cannot  provide  absolute  assurance  that  the 
objectives of the control system are met, and that no evaluation of controls can provide absolute assurance that all control 
issues and instances of fraud, if any, within a company have been detected. 

Management’s Annual Report on Internal Control Over Financial Reporting and Attestation Report of the Registered 
Accounting Firm 

Management is responsible for establishing and maintaining adequate internal control over the Company’s financial 
reporting.  Management  assessed  the  effectiveness  of  the  Company’s  internal  control  over  financial  reporting  as  of 
December  31, 2017. In  making  this  assessment,  management used  the criteria  set  forth by  the  Committee  of  Sponsoring 
Organizations of the Treadway Commission (COSO) in Internal Control — Integrated Framework (2013). Based on the 
assessment using those criteria, management concluded that, as of December 31, 2017, our internal control over financial 
reporting was effective. 

The  Company’s  independent  registered  public  accountants,  BDO  USA,  LLP,  audited  the  Consolidated  Financial 
Statements included in this Annual Report on Form 10-K and have issued an audit report on the Company’s internal control 
over  financial  reporting.  The  report  on  the  audit  of  internal  control  over  financial  reporting  appears  in  Part  II,  Item  8, 
“Financial Statements and Supplementary Data,” in this Annual Report on Form 10-K. 

Changes in Internal Control Over Financial Reporting 

There  were  no  changes  in  our  internal  control  over  financial  reporting  that  occurred  during  our  most  recent  fiscal 
quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. 

Item 9B — Other Information 

None. 

- 98 - 

 
 
 
Item 10 — Directors, Executive Officers and Corporate Governance 

PART III 

The information required by this Item is included in and incorporated by reference from our definitive proxy statement 
(the “Proxy Statement”) which will be filed with the Securities and Exchange Commission prior to April 30, 2018. The Proxy 
Statement is for our Annual Meeting of Stockholders which will be held on June 14, 2018. 

Item 11 — Executive Compensation 

The information required by this Item is included in and incorporated by reference from the Proxy Statement under 
the captions “Election of Directors,” “Director Compensation,” “Compensation Discussion and Analysis” and “Report of the 
Compensation Committee of the Board of Directors on Executive Compensation.” 

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

The following table sets forth equity compensation plan information as of December 31, 2017. 

Number of 
Securities to be 
Issued Upon 
Exercise of 
Outstanding 
Options, 
Warrants, 
and Rights 

Weighted- 
Average Exercise 
Price of 
Outstanding 
Options, 
Warrants, and 
Rights 

Number of 
Securities 
Remaining 
Available for 
Future Issuance 
Under 
Equity 
Compensation 
Plans (Excluding 
Securities 
Reflected in the 
First Column) 

5,366,368    $ 

3,945,653 
None     Not applicable     Not applicable 

5.43     

Plan Category 

Equity compensation plans approved by security holders (1) ..............................     
Equity compensation plans not approved by security holders ...........................     
____________ 

(1)  

Represents shares of the Company’s common stock issuable upon exercise of options outstanding under the following
equity compensation plans: the 2006 Stock Option/Stock Issuance Plan, the 2008 Equity Incentive Plan, the Amended
and Restated 2008 Equity Incentive Plan, and the 2016 Incentive Plan. 

The information under the caption “Security Ownership of Certain Beneficial Owners and Management” in the Proxy 

Statement is incorporated herein by reference. 

Item 13 — Certain Relationships and Related Transactions and Director Independence 

The information required by this Item is included in and incorporated by reference from the Proxy Statement under 

the caption “Related Person Policies and Transactions.” 

Item 14 — Principal Accounting Fees and Services 

The information required by this item is included in and incorporated by reference from the Proxy Statement under the 

caption “Principal Accountant Fees and Services.” 

With the exception of the information specifically incorporated by reference in Part III to this Annual Report on Form 

10-K from the Proxy Statement, the Proxy Statement shall not be deemed to be filed as part of this report. 

- 99 - 

 
 
 
 
 
 
 
 
  
  
  
 
 
 
 
 
 
 
 
Item 15 — Exhibits and Financial Statement Schedules 

PART IV 

(a)  The following documents are included as part of this Annual Report on Form 10-K: 

(1) 

(2) 

Financial Statements. The financial statements included in Part II, Item 8 of this document are filed as part of
this Annual Report on Form 10-K. 

Financial Statement Schedule. See Note 19, “Allowance for Doubtful Accounts,” of the Notes to Consolidated
Financial Statements in Part II, Item 8, “Financial Statements and Supplementary Data,” of this Annual Report
on Form 10-K. Schedules not listed have been omitted because information required to be set forth therein is
not applicable or is shown in the financial statements or notes thereto. 

(3) 

Exhibit  Index.  See  Exhibit  Index  immediately  following  the  Signature  page  for  a  list  of  Exhibits  filed  or
incorporated by reference as a part of this Report. 

(b)  Exhibit. See Exhibits listed under Item 15(a)(3). 

(c)  Financial  Statement  Schedules.  All  financial  statement  schedules  are  omitted  because  they  are  not  applicable,  not
required, or because the required information is included in the Consolidated Financial Statements, the Notes thereto, or
in the Exhibits listed under Item 15(a)(2). 

Item 16 — Form 10-K Summary 

None 

- 100 - 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SIGNATURES 

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, in the City of San Leandro, State 
of California, on the 8th day of March 2018. 

ENERGY RECOVERY, INC. 

By: /s/ CHRIS GANNON 
Chris Gannon 
President and Chief Executive Officer, and  
Chief Financial Officer 

Pursuant to the requirements of the Securities and Exchange Act of 1934, this Report has been signed below by the 

following persons on behalf of the Registrant and in the capacities and on the dates indicated. 

Signature 

/s/ CHRIS GANNON 
Chris Gannon 

/s/ HANS PETER MICHELET 
Hans Peter Michelet 

/s/ ALEXANDER J. BUEHLER 
Alexander J. Buehler 

/s/ OLAV FJELL 
Olav Fjell 

/s/ SHERIF FODA 
Sherif Foda 

/s/ ARVE HANSTVEIT 
Arve Hanstveit 

/s/ OLE PETER LORENTZEN 
Ole Peter Lorentzen 

/s/ ROBERT YU LANG MAO 
Robert Yu Lang Mao 

Title 

Date 

  President and Chief Executive Officer, and  

March 8, 2018 

Chief Financial Officer (Principal Executive Officer, 
and Principal Financial and Accounting Officer ) 

  Director and Chairman of the Board 

March 8, 2018 

March 8, 2018 

March 8, 2018 

March 8, 2018 

March 8, 2018 

March 8, 2018 

March 8, 2018 

  Director 

  Director 

  Director 

  Director 

  Director 

  Director 

- 101 - 

 
 
 
 
 
  
  
  
  
  
  
 
 
 
   
 
  
  
    
  
  
  
  
    
  
    
  
  
    
  
    
  
  
    
  
    
  
  
    
  
    
  
  
    
  
    
  
  
    
  
    
  
  
    
  
    
  
  
    
  
 
 
 
EXHIBIT INDEX 

Incorporated by Reference 

Exhibit 
Number 
3.1 

Exhibit Description 

  Amended and Restated Certificate of Incorporation, as filed 

with the Delaware Secretary of State on July 7, 2008. 

3.2 

  Amended and Restated Bylaws, effective as of July 8, 2008. 

10.1* 

  Form of Indemnification Agreement between the Company 

and its directors and officers. 

Form 
10-K 

10-K 

S-1/A 

  File No. 
  001-34112   

  Exhibit    Filing Date   

3.1 

  3/27/2009 

  001-34112   

3.2 

  3/27/2009 

  333-150007   

10.1 

  5/12/2008 

Filed 
Herewith 

10.2* 

  2006 Stock Option/Stock Issuance Plan of the Company and 

S-1 

  333-150007   

10.5 

4/1/2008 

forms of Stock Option and Stock Purchase Agreements 
thereunder. 

10.3* 

  Amendment to 2006 Stock Option/Stock Issuance Plan of the 

S-1 

  333-150007    10.5.1 

4/1/2008 

Company. 

10.4* 

  Second Amendment to 2006 Stock Option/Stock Issuance 

S-1 

  333-150007    10.5.2 

4/1/2008 

Plan of the Company. 

10.5* 

  2008 Equity Incentive Plan of the Company and form of 

S-1/A 

  333-150007   

10.6 

  5/12/2008 

Stock Option Agreement thereunder. 

10.6* 

  Energy Recovery Inc. Amended and Restated 2008 Equity 

  DEF14A 

  001-34112    Appendix 

  4/27/2012 

Incentive Plan 

10.7 

  Modified Industrial Gross Lease Agreement dated 

10-K 

  001-34112   

November 25, 2008, between the Company and Doolittle 
Williams, LLC. 

A 
10.17 

  3/27/2009 

10.8 

  First Amendment to Modified Industrial Gross Lease dated 

10-Q 

  001-34112    10.17.1 

8/7/2009 

10.9 

10.10 

10.11 

May 28, 2009, between the Company and Doolittle Williams, 
LLC. 

  Second Amendment to Modified Industrial Gross Lease dated 
June 26, 2009, between the Company and Doolittle Williams, 
LLC. 

  Third Amendment to Modified Industrial Gross Lease dated 
November 10, 2010 between the Company and Doolittle 
Williams, LLC 

  Control Agreement dated July 7, 2011, between the Company, 
Citibank, N.A., Citigroup Global Markets Inc., and Morgan 
Stanley Smith Barney LLC. 

10-Q 

  001-34112    10.17.2 

8/7/2009 

10-K 

  001-34112   

10.14 

  3/12/2013 

10-Q 

  001-34112   

10.43 

8/8/2011 

10.12* 

  Energy Recovery, Inc. Change in Control Severance Plan 

8-K 

  001-34112   

10.1 

3/9/2012 

dated March 5, 2012 

10.13 

  Loan Agreement dated June 5, 2012 between Company and 

8-K 

  001-34112   

10.1 

  6/11/2012 

HSBC Bank, USA, National Association 

10.14* 

  Energy Recovery, Inc. Annual Incentive Plan dated January 1, 

8-K 

  001-34112   

10.1 

  4/30/2014 

2014 

10.15* 
10.16* 
10.17* 

  Offer Letter dated June 26, 2014, to Mr. Joel Gay 
  Draft Consulting Agreement with Thomas S. Rooney, Jr. 
  Energy Recovery, Inc. 2015 Annual Incentive Plan 

10.18* 

  Offer Letter dated April 22, 2015 to Mr. Joel Gay 

10.19* 

  Promotion Letter dated April 30, 2015 to Ms. Sharon Smith-

Lenox 

10.20* 

  Offer Letter dated May 5, 2015 to Mr. Eric Siebert, 

10.21 

  Settlement and Mutual Release Agreement 

10.22* 
10.23 

  Offer Letter dated May 13, 2015 to Mr. Chris Gannon 
  Second Amendment to Loan Agreement with HSBC Bank 

USA, National Association 

10.24* 

  Offer Letter dated September 17, 2015 to Ms. Emily Smith 

10.25**   License Agreement by and between ERI Energy Recovery 

Ireland, Ltd. and Schlumberger Technology Corporation 
  Energy Recovery, Inc. Annual Incentive Plan effective as of 

10.26* 

January 1, 2016 

10.27* 

  Transition and Separation Agreement dated March 15, 2016 
by and between Energy Recovery, Inc. and Mr. Juan Otero 

8-K/A 
8-K 
8-K 

8-K 

8-K 

10-K 

8-K 

8-K 
10-Q 

10-K 

10-K 

  001-34112   
  001-34112   
  001-34112   

  001-34112   

  001-34112   

99.2 
10.2 
10.1 

99.2 

99.1 

7/8/2014 
  1/13/2015 
  4/29/2015 

  4/29/2015 

5/1/2015 

  001-34112   

10.25 

3/3/2016 

  001-34112   

  001-34112   
  001-34112   

99.1 

99.1 
10.7 

  5/13/2015 

  5/15/2015 
8/6/2015 

  001-34112   

10.30 

  001-34112   

10.31 

3/3/2016 

3/3/2016 

8-K 

  001-34112   

10.1 

3/1/2016 

8-K 

  001-34112   

99.1 

  3/18/2016 

- 102 - 

 
 
   
   
   
   
   
   
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
  
 
  
 
 
  
 
 
 
  
 
 
 
  
 
 
  
 
 
 
  
 
 
 
  
 
 
  
 
 
  
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
  
 
 
 
  
 
 
  
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
Number 

Exhibit Description 

Incorporated by Reference 

Form 

  File No. 

  Exhibit    Filing Date   

Filed 
Herewith 

10.28*  Energy Recovery, Inc. 2016 Incentive Plan 

DEF14A 

001-34112  Appendix 

4/27/2016 

8-K 

10-K 

001-34112 

001-34112 

A 

99.1 

10.34 

6/22/2016 

3/10/2017 

10-Q 

001-34112 

10.1 

5/4/2017 

10-K 

001-34112 

14.1 

3/27/2009 

10-Q 

001-34112 

18.1 

5/8/2014 

X 
X 

X 

X 

10.29*  Offer Letter dated May 27, 2016 to Mr. William Yeung 

10.30 

10.31 

14.1 

18.1 

21.1 
23.1 

31.1 

32.1 

Loan and Pledge Agreement between Energy Recovery, Inc. 
as Borrower, and Citibank, N.A. as Lender 
First Amendment to Loan and Pledge Agreement by and 
between Energy Recovery, Inc. and Citibank, N.A. 

Code of Ethics of Energy Recovery, Inc. Additional Conduct 
and Ethics Policies for the Chief Executive Officer and Senior 
Financial Officers. 

BDO USA, LLP, Letter re Change in Method of Accounting 
for Inventory Valuation 

List of subsidiaries of the Company. 
Consent of BDO USA, LLP, Independent Registered Public 
Accounting Firm. 
Certification of Principal Executive Officer and Principal 
Financial Officer, pursuant to Exchange Act Rule 13a-14(a) 
or 15d-14(a), as adopted pursuant to Section 302 of the 
Sarbanes-Oxley Act of 2002. 
Certification of Principal Executive Officer and Principal 
Financial Officer, pursuant to 18 U.S.C. Section 1350, as 
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 
2002. 

101.INS  XBRL Instance Document 
101.SCH  XBRL Taxonomy Extension Schema Document 
101.CAL  XBRL Taxonomy Extension Calculation Linkbase Document    
101.DEF  XBRL Taxonomy Extension Definition Linkbase Document 
101.LAB  XBRL Taxonomy Extension Label Linkbase Document 
101.PRE  XBRL Taxonomy Extension Presentation Linkbase Document    

Indicates management compensatory plan, contract or arrangement. 

* 
**  Portions of this exhibit have been omitted based on a request for Confidential Treatment submitted to the Securities and Exchange 
Commission (the “SEC”). The omitted information has been filed separately with the SEC as a part of the confidential treatment 
request. In the event that the SEC should deny such request in whole or in part, the relevant, previously omitted portions of this 
exhibit shall be publicly filed. 

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About Energy Recovery
Energy Recovery, Inc. (ERII) is an energy solutions provider to industrial 
fluid  flow  markets  worldwide.  Energy  Recovery  solutions  recycle  and 
convert  wasted  pressure  energy  into  a  usable  asset  and  preserve  pumps 
that  are  subject  to  hostile  processing  environments.  With  award-winning 
technology,  Energy  Recovery  simplifies  complex 
improving productivity, profitability, and efficiency within the oil & gas and water 
industries.  Energy  Recovery  products  save  clients  more  than  $1.8  billion  (USD) 
annually.  Headquartered  in  the  Bay  Area,  Energy  Recovery  has  offices  in  Houston, 
Ireland, Shanghai, and Dubai. For more information about the Company, please visit 
www.energyrecovery.com.

industrial  systems  while 

Board of Directors
Hans Peter Michelet 
Alexander Buehler 
Olav Fjell 
Sherif Foda

Arve Hanstveit
Ole Peter Lorentzen
Robert Mao

Corporate Headquarters
1717 Doolittle Drive, San Leandro, CA 94577 USA
TEL: +1 510.483.7370 | FAX: +1 510.483.7371 | EMAIL: info@energyrecovery.com