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Mercury General

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FY2020 Annual Report · Mercury General
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ENERGY FREEDOM
FOR A CHANGING WORLD.

2020 ANNUAL REPORT  //  MERCURY NZ LIMITED

MENU.
1. ENERGY FREEDOM TODAY.

04  WHO WE ARE
05  OUR DIRECTION
06  OUR BUSINESS MODEL
09 

 CHAIR & CHIEF EXECUTIVE 
UPDATE

2. OUR WORLD OF ENERGY FREEDOM.

THE WORLD AROUND US
ENGAGING WITH OUR STAKEHOLDERS

14 
18 
20  THE RISKS WE FACE
21  PULLING IT ALL TOGETHER
22  CREATING VALUE IN FY20

3. LIVING ENERGY FREEDOM.
OUR PILLAR STORIES

CUSTOMER 
24

PARTNERSHIPS  
27

KAITIAKITANGA  
30

PEOPLE  
36

COMMERCIAL  
39

PREPARING FOR CLIMATE CHANGE
33

4. ENERGY FREEDOM IN NUMBERS.

5. THE TEAM BEHIND ENERGY FREEDOM.

43  FINANCIAL COMMENTARY
45  FINANCIAL TRACK RECORD
46 
49  FINANCIAL STATEMENTS 

INDEPENDENT AUDITOR’S REPORT

71 

 YOUR DIRECTORS & YOUR 
EXECUTIVE TEAM

72  GOVERNANCE AT MERCURY
79  REMUNERATION REPORT
85  DISCLOSURES
87 

 SECURITY HOLDER  
INFORMATION

92 

95 

 SUSTAINABILITY INDICES 
- GRI INDEX 
- TCFD INDEX
 INFORMATION FOR 
SHAREHOLDERS

96  GLOSSARY
97  DIRECTORY

ABOUT THIS 
REPORT.

Mercury is committed to providing transparent disclosures in 
easily understood, comparable and engaging ways so that we 
meet the expectations of our many stakeholders.

This report follows the Integrated Reporting  framework. 
We describe Our Business Model, including inputs, outputs 
and the outcomes of our strategic approach across five pillars, 
taking a long-term view of value creation. We also include a 
specific Global Reporting Initiative (GRI) Standards index and 
our climate change section follows the Task Force on Climate-
related Financial Disclosures (TCFD). 

We have grouped our reporting into five sections to help you 
find areas of particular interest, but note that they are all part 
of who we are, what we do and why.

Across all this, we seek to report openly and honestly on our 
performance in a way that shows the integrated approach  
we take.

If you have any comments about this report, including things 
we could do better, please email annualreport@mercury.co.nz

STATEMENT FROM THE DIRECTORS

The directors are pleased to present Mercury NZ Limited’s 
integrated Annual Report and Financial Statements for the 
year ended 30 June 2020. The Auditor-General is required 
to be Mercury’s auditor, and has appointed Lloyd Bunyan 
of Ernst & Young to undertake the audit on his behalf. The 
directors are not aware of any circumstances since the end of 
the year that have significantly affected or may significantly 
affect the operations of Mercury. This Annual Report is dated 
18 August 2020 and is signed on behalf of the Board by:

PRUE FLACKS // CHAIR

KEITH SMITH // DIRECTOR

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ENERGY FREEDOM TODAY.

We are focussed on being here for the long term. 
There are interdependencies between a range of 
factors that affect our ability to create value over 
time. In this section we introduce you to Mercury; 
provide an overview of how we operate (Our Business 
Model); outline our past and current performance and 
outcomes; and share our goals for the future. Our Chair, 
Prue Flacks, and Chief Executive, Vince Hawksworth, 
then jointly summarise our 2020 financial year.

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WHO WE ARE.

OUR MISSION: 
ENERGY FREEDOM.

We are primarily a generator and retailer of 
electricity, focussed on meeting the energy 
needs of New Zealanders.

Our mission, which guides us in what we 
do and why, is Energy Freedom for all New 
Zealanders. This is about Aotearoa New 
Zealand being stronger economically and 
more sustainable through better use of 
homegrown, renewable energy. 

Our purpose is to inspire New Zealanders to 
enjoy energy in more wonderful ways. We do 
this by championing e.transport, providing 
offers to our loyal customers and innovating 
with digital solutions to make interactions 
with us easy and rewarding.

Thinking in an integrated way about how 
we create long-term value is part of who 
we are. Since 2015, we’ve been building the 
understanding across Mercury of how we 
collectively contribute to the delivery of our 
strategy by following Our Business Model and 
focussing on things that matter most. We 

generate electricity from 100% renewable 
sources: hydro, geothermal and soon, wind. 
We also have just under 20% ownership of 
Tilt Renewables (NZX:TLT) which has wind 
and solar generation developments in New 
Zealand and Australia.

Our current electricity generation sites are 
situated in the central North Island of New 
Zealand, along the Waikato River (hydro) and 
nearby steamfields of the northern part of 
the Central Plateau (geothermal). Our Turitea 
wind farm is being developed in an area 
renowned for wind generation – part of the 
Tararua Range in the Manawatū region.

Our retail operations serve residential, 
commercial (small and medium sized 
businesses), industrial and spot market 
customers. Sub-brands include GLOBUG,  
our pre-pay electricity product.

We manage a small number of subsidiary 
enterprises, such as Mercury Solar (solar 
installations) and Mercury Drive (an exploratory 
electric vehicle by subscription service). We 
also have a solar and battery research and 
development (R&D) facility.

We have a corporate office in Auckland, 
other offices in Hamilton, Rotorua, Taupō, 
Palmerston North and Wellington, as well as 
operational sites at our power stations and at 
our R&D centre in Penrose, Auckland.

KAWERAU

AUCKLAND

KARĀPIRO

ARAPUNI

WAIPĀPA

MARAETAI I 
AND II

WHAKAMARU

ĀTIAMURI

MŌKAI+

ŌHAKURI

NGĀTAMARIKI

ARATIATIA

ROTOKAWA

NGĀ AWA 
PŪRUA+

LAKE TAUPŌ

TURITEA

HYDRO STATIONS

GEOTHERMAL STATIONS

SOLAR

WIND FARM
(under construction)

R&D CENTRE

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(+ not 100% owned by Mercury)

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OUR DIRECTION.

OUR PURPOSE

TO INSPIRE  
NEW 
ZEALANDERS  
TO ENJOY  
ENERGY IN 
MORE  
WONDERFUL 
WAYS.

COMMERCIAL
ACHIEVING OUR COMMERCIAL GOALS 
THROUGH SUSTAINABLE GROWTH. 

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••

C

OUR MISSION

ENERGY 
FREEDOM.

C T       ••    COM

CUSTOMER
INSPIRING, REWARDING AND MAKING  
IT EASIER FOR OUR CUSTOMERS.

M
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T

&

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    ••
G I N AL

U

RIOUS &  O R I

PEOPLE
ENABLING OUR PEOPLE TO 
PERFORM TOGETHER IN A 
CHANGING ENVIRONMENT 
AND KEEP EACH OTHER SAFE.

PARTNERSHIPS
PROVIDING GREATER OPPORTUNITIES 
FOR NEW ZEALAND, OUR INDUSTRY, OUR 
PARTNERS AND OUR BUSINESS THROUGH 
LONG-TERM COLLABORATION.

KAITIAKITANGA
LONG-TERM SUSTAINABILITY OF 
NATURAL RESOURCES AND ASSETS.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
 
 
 
 
 
OUR BUSINESS MODEL.

INPUTS

OUR BUSINESS ACTIVITIES

348K

CUSTOMERS

314k residential
32k commercial
2k industrial
300 spot

24

PARTNERSHIPS

2  geothermal joint ventures
4  formal iwi partnerships
18 community and 
  commercial partnerships

14

POWER 
STATIONS

9 hydro
5 geothermal

786

PERMANENT 
EMPLOYEES

309 women
477 men
496 in Auckland
100 in Hamilton

28 in Taupō
61 in Rotorua
101 in rest of NZ

78K

SHAREHOLDERS

2K

BONDHOLDERS

C T       ••    COM

COMMERCIAL
ACHIEVING OUR COMMERCIAL GOALS 
THROUGH SUSTAINABLE GROWTH. 

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••

C

U

RIOUS &  O R I

CUSTOMER
INSPIRING, REWARDING AND MAKING  
IT EASIER FOR OUR CUSTOMERS.

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&

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    ••
G I N AL

PEOPLE
ENABLING OUR PEOPLE TO 
PERFORM TOGETHER IN A 
CHANGING ENVIRONMENT 
AND KEEP EACH OTHER SAFE.

PARTNERSHIPS
PROVIDING GREATER OPPORTUNITIES 
FOR NEW ZEALAND, OUR INDUSTRY, OUR 
PARTNERS AND OUR BUSINESS THROUGH 
LONG-TERM COLLABORATION.

KAITIAKITANGA
LONG-TERM SUSTAINABILITY OF 
NATURAL RESOURCES AND ASSETS.

OUTPUTS

4,361

GWh PHYSICAL 
SALES

3,712

GWh HYDRO 
GENERATION

2,615

GWh GEO 
GENERATION

15%

GENERATION 
MARKET SHARE

13%

CONSUMPTION  
MARKET SHARE

OUR BUSINESS  
MODEL EXPLAINED.

Our Business Model shows our key inputs 
interacting with our business activities 
(which has Our Direction at its core) to create 
outputs of sustainable, commercial value. 
The outcomes of our activity are measured 
and take us towards mid-term and long-term 
goals that reflect our enduring mission.

OUR BUSINESS MODEL  
IS CONTINUED OVER  
THE NEXT PAGES 

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
 
 
 
 
 
OUR BUSINESS MODEL. (CONTINUED)

OUR  
PILLARS

FY20  
OUTCOMES

MID-TERM  
STRATEGIC GOALS

HOW WE  
MEASURE THIS

LONG-TERM  
STRATEGIC GOALS

CUSTOMER

5.9%

MERCURY BRAND 
TRADER CHURN

13.7

NET PROMOTER
SCORE (NPS)

60%

BRAND STRENGTH

We are inspiring, rewarding and 
making it easy for customers in our 
target segments.

•  Brand strength

•  Churn

•  Net Promoter Score

New Zealand’s leading energy brand.

PARTNERSHIPS

EPR

ELECTRICITY 
PRICE REVIEW 
RECOMMENDATIONS
BEING ACTIONED

16

COMMUNITY 
RELATIONSHIPS

COVID-19

WORKED WITH 
SUPPLIERS TO 
MITIGATE LOCKDOWN 
IMPACTS

There is bipartisan national, regional 
and community support for positive 
contributions from the renewable 
electricity industry.

Existing relationships are maintained 
and strengthened, and new 
relationships are created, consistent 
with our purpose and strategy.

Electricity is viewed as an enabler 
of the transition to a low carbon 
economy.

Key stakeholder relationship plans are 
in place and are in effect.

Recognised as a leader within our 
industry, with our industry recognised 
as a positive contributor to New 
Zealand, and with Mercury’s access to 
fuel enduring and enhanced.

KAITIAKITANGA

1.02

PORTFOLIO 
LWAP/GWAP

HYDRO

WHAKAMARU 
REFURBISHMENT 
COMPLETE; KARĀPIRO 
APPROVED

36KG

CO2E/MWh 
GROSS GENERATION 
EMISSIONS INTENSITY

We understand and are managing 
the long-term sustainability of the 
natural resources and assets that  
we rely on.

Integrated Management Plans are 
in place facilitating our long-term 
approach.

Recognised as a leader in the ultra-
long-term management of both 
physical and natural assets.

For a definition of these measures please see our Glossary.

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MERCURY ANNUAL REPORT 2020 
 
 
OUR BUSINESS MODEL. (CONTINUED)

OUR  
PILLARS

FY20  
OUTCOMES

MID-TERM  
STRATEGIC GOALS

HOW WE  
MEASURE THIS

LONG-TERM  
STRATEGIC GOALS

PEOPLE

ONE

HIGH SEVERITY 
HEALTH & SAFETY 
INCIDENT

67%

EMPLOYEE 
ENGAGEMENT

85%

OF EMPLOYEES FELT 
PRODUCTIVITY WAS 
THE SAME OR BETTER 
WHILE WORKING 
REMOTELY DURING 
LOCKDOWN

•  Employee engagement

•  No serious injuries

A Zero Harm organisation that has 
enabled our people to adapt to the 
changing nature of work to deliver the 
highest levels of performance and 
productivity.

We have enabled our people to 
understand and respond to the 
changing nature of work in order 
to deliver the highest levels of 
productivity and performance  
and are viewed as an attractive  
place to work.

We are a Zero Harm organisation  
that continues to focus on the 
physical and mental wellbeing of  
all the people who are important  
to our business.

COMMERCIAL

4.5%

ANNUAL TOTAL 
SHAREHOLDER 
RETURN

$114M

STAY-IN-BUSINESS 
CAPEX

WIND

COMMITMENT  
TO FULL TURITEA 
WIND FARM

We deliver EBITDAF growth and 
maintain an appropriate average for 
stay-in-business CAPEX investment, 
while operating within agreed  
risk parameters.

Progressive ordinary dividends 
enabled by sustainable earnings 
growth.

Leading our sector in terms of  
financial performance and 
shareholder returns, earning at  
least our cost of capital.

For a definition of these measures please see our Glossary.

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MERCURY ANNUAL REPORT 2020 
 
 
CHAIR & CHIEF 
EXECUTIVE UPDATE.

PRUE FLACKS // CHAIR

VINCE HAWKSWORTH // CHIEF EXECUTIVE

Mercury’s overall performance was strong 
in a testing 2020 financial year affected by 
drought across the Waikato catchment, which 
impacted hydro generation from September, 
and the disruption caused by the COVID-19 
pandemic.

Minimal rainfall in the final quarter continued 
a sequence of record low hydrological 
conditions. Lake Taupō hydro storage ended 
the year almost 100GWh below its long-term 
mean at the end of June.

Hydro generation for the year of 3,712GWh 
(4,006GWh FY19) was approximately 
300GWh down against our long-term 
average. Careful management of Lake 
Taupō’s storage levels, and prudent hedging, 
helped lessen the financial impact of the 
extremely low inflows. 

Geothermal production of 2,615GWh was 
only modestly down on last year’s record 
generation (2,697GWh FY19), despite 
scheduled maintenance activity completed 
through the year.

Operating earnings, (EBITDAF) of $494 
million were down $12 million on the prior year 
– a strong result given FY20 was the first full 
year without earnings from the Metrix smart 
metering business, which was sold in FY2019.

Capital expenditure (CAPEX) of $279 million 
($115 million FY19) represented a high level 
of activity across our generation assets and 
information communication technology 
(ICT) investment – all part of ensuring our 
platforms for sustaining output are strong. 
We completed multi-year refurbishments at 
our Whakamaru and Aratiatia hydro stations 
as well as a three-well geothermal drilling 
programme at Kawerau and Rotokawa 
steamfields.

We also advanced construction of the Turitea 
wind farm, having committed $184 million in 
total to the end of June. Contractor delivery 
delays across design and construction, as well 
as some impacts from the COVID-19 related 
lockdown from late March, have set back the 
construction timetable. Completion of the 
33 northern turbines is expected in the final 
quarter of FY21, and the 27 southern turbines 
in the second quarter of FY22. Project times 
remain subject to contractor performance 
and further COVID-19 restrictions.

Our investment in Tilt Renewables has 
enabled us, as intended, to participate in 
renewable energy growth opportunities  
in Australia as well as Tilt’s growth in  
New Zealand.

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MERCURY ANNUAL REPORT 2020 
 
 
PRUE’S KEY 
OBSERVATIONS.

It is a pleasure to present to you Mercury’s 2020 Annual Report, 
my first as Chair after succeeding Joan Withers who retired at our 
September Annual Shareholders’ Meeting (ASM).

One of my early tasks was to manage the appointment of a new Chief 
Executive to replace Fraser Whineray who left in the third quarter for a 
role in another sector. 

I would like to acknowledge the significant contributions of Joan 
Withers and Fraser Whineray to Mercury over a long period, including 
part of the 2020 financial year. 

The Board was extremely pleased to appoint Vince Hawksworth as 
our new Chief Executive. Vince joined us in the midst of the COVID-19 
lockdown at the end of March. Although this was a challenging time to 
step into the role, Vince’s skills and deep experience in the industry have 
ensured a smooth transition and strong leadership through this period.

We are all very conscious of the current environment and the potential 
impacts on our customers, communities, suppliers and partners over 
the longer term. My focus is ensuring the Board supports Vince and his 
executive team to keep our people safe, support our customers, and 
continue to deliver on our strategy for the benefit of our owners and 
wider stakeholders.

Operating costs, on a normalised basis, 
remained broadly flat for a seventh year in a 
row, reflecting our disciplined and focussed 
approach to its core activities. 

Net profit after tax of $207 million was down 
from the previous year’s record ($357 million 
FY19), which benefitted by $177 million from 
the sale of Metrix.

Total shareholder returns (TSR) through 
the year were 4.5%, reflecting underlying 
strength and solid execution in a challenging 
environment. Mercury’s market capitalisation 
was $6.4 billion at financial year end ($6.3 
billion FY19).

Further details can be read in our Financial 
Commentary and Financial Statements.

CAPITAL MANAGEMENT

Mercury continues to be well positioned 
from a liquidity and capital perspective.

We undertook $600 million of refinancing 
through the year, split evenly between new 
bank facilities and a capital bond.

Our gearing ratio is 2.0, in line with the  
strong end of our target range of 2.0x to  
3.0x debt/EBITDAF ratio. We continue to look 
for opportunities to further strengthen our 
capital position.

Our capital management initiatives support 
Mercury’s investment-grade credit rating 

(BBB+), which was reaffirmed by Standard 
& Poor’s (S&P) Global Ratings in December 
2019. A review conducted by S&P, following 
the announced decision by Rio Tinto to 
shut Tiwai Point aluminium smelter, saw no 
change in this rating.

We are pleased to declare a fully imputed 
final dividend of 9.4 cents per share (CPS). 
This brings the full-year ordinary dividend to 
15.8 CPS, up 2% (15.5 CPS FY19), marking 
our 12th consecutive year of ordinary 
dividend growth.

Guiding our approach to maintaining 
incremental dividend increases, we recognise 
that we have a large register of retail 
shareholders who appreciate our efforts to 
sustain this in a low interest rate environment 
that we anticipate is likely to continue.

YOUR BOARD

Joan Withers’ retirement in September 
created a Board vacancy that we were very 
pleased to fill later in the financial year 
with the appointment of Hannah Hamling. 
Hannah has a broad range of applicable 
governance skills and specific expertise 
in water management which will be of 
ongoing value to Mercury. She will seek 
election at our 2020 Annual Shareholders’ 
Meeting along with those directors retiring 
by rotation.

We continue to support the Future Directors 
programme which aims to improve the 
pipeline of talent coming into governance. 
We appreciated the contribution of Anna 
Lissaman, who finished her term as Future 
Director during the year, and we have 
commenced the process of making another 
appointment.

COVID-19 PANDEMIC

The COVID-19 pandemic tested our incident 
response processes, support structures 
for our people and our resilience as an 
organisation. How people responded 
to support each other, our customers, 
suppliers and communities through such 
an unprecedented and sustained disruption 
was a major highlight that is outlined in 
more detail in The World Around Us. 

HIGHLIGHTS

In our 2019 Annual Report, we signalled a 
number of activities that would be important 
to us in the year ahead. We are pleased to 
confirm that, not only have we advanced 
construction of stage one of the Turitea 
wind farm, in November we were able to 
announce our commitment to complete the 
wind farm to the full extent of the consented 
60 turbines at a total cost budgeted at $464 
million. This will ultimately make Turitea New 
Zealand’s largest wind farm. Electrons will 

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MERCURY ANNUAL REPORT 2020 
 
 
start to flow in 2021, and on completion it will 
provide enough renewable electricity annually 
to power more than 375,000 electric vehicles.

We continued our focus on customer value 
to successfully manage our positions in 
elevated and volatile wholesale markets, 
which continued to be a feature through the 
year. 

We completed refurbishments at 
Whakamaru and Aratiatia hydro stations, 
part of a multi-year programme across our 
stations to ensure efficient performance 
well into the future. In the case of the 
Whakamaru refurbishment, an additional 
20% capacity has been achieved, equivalent 
to adding an extra turbine. We advanced 
planning for our Karāpiro rehabilitation, 
however replacement of the first main 
generating unit is now scheduled for 
August FY22, as a result of delays related to 
COVID-19.

Detailed workforce planning continues, with 
a pilot completed through the year aimed at 
testing ways to build a workforce that is agile 
and digitally enabled. 

SECTOR DYNAMICS

The electricity sector has again performed 
well in managing, for New Zealanders, the 
energy ‘trilemma’ of energy security, energy 
equity, and environmental sustainability of 
energy systems.

Supply was secure and stable despite an 
unprecedented dry weather sequence in the 
North Island. At the same time the Electricity 
Retailers Association (ERANZ) reported in 
May that the average annual power bill has 
continued to fall, reaching a new 11-year low 
in real terms. This is a reflection of a range of 
measures over this period that encouraged 
increased competition, and also measures 
towards efficient use of electricity, which 
Mercury fully supports.

There has been material progress made 
on advancing the safe and secure sharing 
of customer data to enable better network 
planning with distributors. This has been 
enabled by the Electricity Authority’s 
(EA) move to implement a data sharing 
agreement, which we fully support. The data 
sharing, which will be advanced in FY21, will 
support greater innovation and reliability 
outcomes for consumers.

We supported the intent of the Government’s 
Electricity Price Review (EPR), and actively 
put in place changes based on the EPR’s 
outcomes.

Our assessment of the EA’s transmission 
pricing methodology (TPM) guidelines, as well 
as its draft ruling against Meridian Energy on 
a claim of creating an undesirable trading 
situation (UTS) is outlined in The World 
Around Us. 

CUSTOMERS

Understanding the impacts of the COVID-19 
pandemic on our customers, and responding 
quickly and empathetically in a fast-changing 
environment, was not without its challenges. 
There was some great work undertaken to 
put in place new payment solutions for those 
whose incomes were disrupted. Specific 
initiatives are outlined in the section The 
World Around Us. 

Our focus on loyalty continued with 
initiatives such as our Mercury App engaging 
customers with activity-based incentives 
during the COVID-19 lockdown. 

Our focus on yield, rebalancing our portfolio 
towards commercial and industrial customers, 
saw residential customer numbers down 
3.7% to around 314,000. After two years 
of no mass market headline price changes, 
we communicated retail price changes in 
February. 

We launched a new brand campaign, ‘Kiss Oil 
Goodbye’ in February, aimed at more boldly 
driving a transition to e.transport, but quickly 
made the decision to pause the campaign 
when the pandemic hit. It was restarted 
in July. We believe that it is important to 
support demand for renewable energy by 
reinvigorating the movement for a transition 
away from fossil fuels. 

VINCE’S KEY 
OBSERVATIONS.

Starting my role as Chief Executive of Mercury in the first week of 
the country’s Level 4 COVID-19 lockdown was both challenging and 
exciting.

My first impression was of an organisation that had smoothly and 
capably transitioned to ensure our employees could safely operate the 
business to generate electricity and support our customers.

Subsequently, I have been delighted to visit and get to know our assets 
and to meet many of our people face to face. The passion for “Energy 
Freedom” is demonstrated in their actions every day.

However, it is the combination of great assets, passionate people and 
clear mission that provides a strong platform for performance even in 
the face of an increased level of uncertainty as Mercury navigates the 
closure of the Tiwai Point aluminium smelter and the economic and 
social impacts of COVID-19.

I look forward to leading the Mercury team in this period of change to 
achieve outstanding results.

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MERCURY ANNUAL REPORT 2020 
 
 
PEOPLE

LOOKING FORWARD

Our people showed tremendous resilience 
in the face of New Zealand’s pandemic 
response. Individuals and teams adapted 
well to changed work circumstances, and 
our previous investments in digital ways of 
working helped support the transition away 
from, and back to, our physical places of work.

We surveyed our people about their 
experiences and are looking at ways to 
embed lessons on effective flexible working 
arrangements so we are ready to adapt 
quickly again to changing circumstances if 
required. 

… THEIR WELLBEING, HEALTH & SAFETY 

The wellbeing, health and safety of our people 
continues to be a fundamental focus of 
attention.

All senior leaders undertook a mental 
wellbeing awareness course, initially delivered 
face-to-face but adapted for online learning 
as most of our people worked from their 
homes through the period of the COVID-19 
lockdown.

Support was offered, to our people impacted 
by the COVID-19 lockdown, with particular 
care given to employees over 70 or immuno-
compromised.

It was disappointing to us that there was one 
serious harm incident during the year (zero in 
FY19). Our thoughts were with the individual, 
who suffered a broken leg while working at 
one of our hydro sites. He has subsequently 
made a return to work. We continue to work 
hard on safety controls, with a focus on 
reducing the likelihood of serious harm or 
other significant events. 

We operate in an uncertain environment 
and there is no room for complacency. The 
impacts of the COVID-19 pandemic on the 
economy will continue. The announced 
closure of the Tiwai Point aluminium 
smelter, and decisions around timing of the 
closure, will lead to increased volatility in 
wholesale electricity markets. Transmission 
pricing implications, and consideration of 
investments in pumped storage signalled by 
the Government, will also have market and 
investment implications for us and others.

In this environment we must look at the 
things we can control. We have instigated a 
programme to enhance our own operational 
excellence, ensuring we have the right people 
in the right places, doing the right things 
effectively and efficiently.

We will be investing carefully in our people, 
in our assets, and in digital solutions for our 
customers.

Underpinning these activities, we are 
confident that we have a strong and resilient 
platform, powered by committed people, to 
continue to deliver incremental growth and 
opportunities in accordance with our strategy.

FY21 ACTIVITIES

•  Completion of Turitea wind farm, and 

further preparation work for Karāpiro hydro 
station refurbishment.

•  Advance our digital choices for customers, 
including investigating ways to improve our 
customers’ experience assisted by voice 
biometrics.

•  Programmes rolled out to build a workforce 

fit for a quickly changing environment.

•  Operational excellence initiatives.

GUIDANCE

Mercury’s FY21 EBITDAF guidance has been 
set at $515 million, subject to any material 
events, significant one-off expenses or other 
unforeseeable circumstances including 
hydrological conditions. Guidance at the time 
of this report assumes 3,900GWh of hydro 
generation. FY21 stay-in-business CAPEX 
guidance is $80 million.

FY21 ordinary dividend guidance is 17.0 CPS, 
fully imputed, representing a 7.6% increase 
on FY20 and the 13th consecutive year of 
ordinary dividend increases.

On behalf of your Board and Executive 
Management Team (EMT) we gratefully 
acknowledge the contribution of our people, 
the loyalty of our customers and the support 
of our partners and owners to our business.

Together we are Mercury,

Energy made Wonderful.

Ngā mihi nui ki a koutou katoa.

PRUE FLACKS // CHAIR

VINCE HAWKSWORTH // CHIEF EXECUTIVE

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OUR WORLD OF ENERGY FREEDOM.

In this section we cover how we take into account and 
respond to key changes in our external environment; 
how we consider our stakeholders’ identified needs, 
interests and opportunities; the risks we face; and 
how we balance trade-offs through the lens of what 
matters most. We outline how this all shapes our 
focus on how we create value.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
THE WORLD 
AROUND US.

Mercury operates within a wider world. While what 
we do has impacts on other parties (for example, 
customers, partners and the environment), factors 
outside of our business impact us. These can present 
risks, challenges and opportunities so we put effort 
into understanding external factors most material 
to our business and use this understanding to guide 
our decisions.

COVID-19 PANDEMIC

The most disruptive unanticipated external 
factor to impact us has been the COVID-19 
pandemic. In addition to day-to-day 
execution of our strategy and delivery of 
our scorecard targets, we had to turn our 
attention in the second half of the financial 
year to limiting the impact of the pandemic 
on our business. 

Our Incident Management Plan was activated 
on 31 January 2020 to ensure effective 
coordination of our response across people, 
customers, suppliers and stakeholders. 
Outlined here are responses across key areas.

People

We put our focus on people’s safety and 
wellbeing while maintaining business 

continuity. On 19 March, we successfully 
tested technology systems to ensure all 
people in non-essential roles could work 
from home. On 23 March, the Government 
announced a move to Alert Level 3 for 48 
hours to prepare for a move to Alert Level 4, 
which would require most people to work from 
home and only leave their homes for essential 
travel.

Work was completed to identify and have 
processes in place for essential workers. These 
workers included spot traders/electricity 
dispatchers, station operators, payroll and staff 
or contractors providing essential maintenance 
services (e.g. for our Aratiatia refurbishment 
and Ngātamariki generator maintenance). 
Essential workers over 70 years old or 
immunocompromised were contacted to 
ensure safety and wellbeing needs were met.

Communications to our people were frequent 
and focussed on providing reassurance and 
helping to keep people connected. We set 
up a dedicated email inbox so our people 
were able to get direct answers to queries 
and so we could identify any employees or 
family members at higher risk of contracting 
COVID-19. 

Surveys were undertaken to understand the 
impact of lockdown on wellbeing, productivity 
and comfort levels and this resulted in some 
direct contact with individuals who were 
struggling and needed help.

The national response moved from Alert  
Level 4 to Alert Level 3 on 27 April. On 18 May 
at Alert Level 2 we initiated a phased return  
to work. 

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
Transitioning across the alert levels included 
logistics associated with equipment, 
reconfiguring workspaces and the way activity 
on sites was completed, and a redesign of all 
training for it to be conducted virtually.

On 8 June, we made a full return to the office.

In June, we surveyed employees on their 
experiences of working during lockdown.  
54% of employees responded, answering 
questions about productivity, decision making 
and staying connected. Most found these 
factors either improved or stayed the same 
during lockdown.

Customers

Our primary focus was on providing support 
and help to those customers who needed it 
most. The programme of work during this 
time was significant and included:

•  creating a new web page for customers 
looking for reassurance and support as a 
result of COVID-19

•  establishing a dedicated COVID-19 phone 

number

•  pausing debt collection processes and 

disconnections 

•  making GLOBUG calls from mobiles  

toll-free

•  contacting over-the-counter payers to offer 

alternatives

•  initiating a programme to mitigate risks 
with resuming energy management 
processes for GLOBUG customers

•  designing and implementing phone-based 
collection reminder processes for GLOBUG 
customers

•  launching a free power hour offer to 

customers while in lockdown

•  aligning the Mercury App challenges to 

being active at home

•  rolling out a ‘boredom buster’ campaign  

to engage with customers

•  developing a small commercial 

segmentation approach that allowed for 
differentiated payment support for small 
businesses

•  sponsorship of the SOS Business initiative 
to help small businesses with cashflow

Stakeholders

We provided weekly situation reports to the 
National Emergency Management Agency 
(NEMA) and proactively communicated 
with key Wellington stakeholders including 
Ministers, Government officials and regulators. 
These were welcomed by the recipients.

We undertook engagement with regulatory 
and government stakeholders on the 
measures we implemented to support 
customers. Particular focus was given to 
GLOBUG customers facing growth in debt 
when energy management processes were 
paused. We received positive feedback from 
stakeholders around our proactive, pragmatic, 
and transparent approach.

Transpower effectively coordinated with 
generators around security of supply. 
While some maintenance was deferred, 
essential works continued, conscious of 
winter approaching. We answered a number 
of information requests from Transpower, 
Ministry of Business, Innovation and 
Employment (MBIE) and Treasury around  
our COVID-19 preparedness and response.

Suppliers

We engaged early during lockdown with 
a range of key suppliers. After effecting 
the changes necessary for lockdown, our 
conversations focussed on opportunities to 
enable contractors to maintain staff where 
possible, and for staff to maintain income 
levels. We were able to provide support 
through a range of initiatives including:

•  providing work to core generation 

contractors that they could complete from 
home to complement the limited on-site 
work they were undertaking

•  our procurement team working closely with 
suppliers who employ a number of low-paid 
vulnerable workers. We made a number of 
concessions to help to keep those workers 
in employment

•  the Rotokawa Joint Venture team working 
closely with MB Century to keep its drilling 
crew together through the lockdown period 
so they were able to return to complete well 
drilling when that was allowed

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
We worked with our iwi partners to support 
them as they responded to the needs of their 
people while working remotely. Our support 
included:

•  working from home required new ways 
of working for remaining paper-based 
processes – transition to digital processes 
has been accelerated

•  sharing our call centre and ICT expertise to 
assist Raukawa management to coordinate 
its transition to working from home 
and manage community support cases 
remotely

•  supporting Waikato-Tainui’s initiative to buy 

and distribute heaters for its kaumātua

•  working with Tūwharetoa to consider 
increasing distribution of partnership 
fund reserves to support its people most 
affected by COVID-19

Key lessons

Through our transition from incident 
management and response to recovery 
mode, we held formal debrief sessions for our 
incident management teams. Items identified 
in these sessions will be used by business 
units to update their Business Continuity 
Plans and Incident Management Processes.

Key lessons include:

•  technology worked well to enable working 
from home – transitioning from Skype to 
Microsoft Teams will further enhance virtual 
work practices

•  incident management teams enabled 

collaborative and fast decisions informed 
by data – business units are considering 
how to incorporate these practices into lead 
team management

•  most of our people enjoyed working 

from home – we advanced Executive 
Management Team (EMT) discussions  
on what increased flexibility could look like 
for us

ELECTRICITY PRICE REVIEW 

We welcomed the findings from the 
Government’s Electricity Price Review (EPR). 
Areas for priority attention were: reforms 
to the vulnerable consumer and medically 
dependent consumer guidelines; prompt-
payment discounts; and saves and win-
backs. Resources were allocated to ensure 
implementation of changes consistent with 
the policy intent while considering the best 
interests of our customers. We continue to 
engage with the Government and regulators 
on outstanding areas of EPR reform, including 
market making and the phase-out of the Low 
Fixed Charge Tariff Regulations. 

TRANSMISSION PRICING METHODOLOGY

The Electricity Authority (EA) announced 
its new transmission pricing approach in 
June 2020. The principle applied is that the 
shared costs of maintaining and upgrading 
the national electricity grid will be allocated 
according to benefits gained, as opposed 
to being evenly spread across the country. 
Transpower, which maintains the national 

grid, is expected to come up with a pricing 
structure in line with the EA’s new guidelines 
by 30 June 2021 with new pricing to be in 
place by April 2023. The final impact to us 
will not be known until Transpower completes 
its review. Following the announcement there 
have been a number of factors that may 
result in further delays to implementation 
or potential changes in approach including 
a judicial review of the EA’s process and the 
impacts of the closure of the Tiwai Point 
aluminium smelter.

WATER

The Government released its freshwater 
management plan in May 2020. Engagement 
through the consultation process has 
helped lessen regulatory environmental 
risks to electricity generation (operation 
and flexibility). Implementation of the 
Government’s proposals will be through 
regional plan reviews carried out over the 
next six to seven years. We are one of many 
with an interest in freshwater reform and will 
continue to participate in central and local 
government initiatives to improve freshwater 
quality and management. Our planning for 
a Waikato World’s Best Catchment strategy 
features as our Partnership pillar story .

TIWAI POINT ALUMINIUM SMELTER

The announcement by the owners of the 
Tiwai Point aluminium smelter that the 
smelter would end its contract with Meridian 
Energy for electricity supply in August 2021 

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There are also opportunities for greater 
flexibility of work arrangements due to the 
proven ability of many of our people to work 
from home, as well as the opportunity to 
accelerate digitisation to support our people 
and our customers.

There is potential for various interventions 
related to the sector to be suggested as part 
of the election cycle. These could come in 
the form of renewable energy incentives 
and/or new energy initiatives. The EA will be 
making a final ruling on its consideration of 
an undesirable trading situation complaint 
against Meridian Energy. A consequence 
could be a review of market trading 
provisions. An incident of poor behaviour by 
one market participant should not be seen as 
an indication of systemic failure. 

We will continue to advocate for recognition 
of New Zealand’s electricity sector as being 
well functioning and balanced in terms 
of the energy trilemma, being energy 
security, energy equity, and environmental 
sustainability of energy systems. Policy should 
focus on the most material opportunities to 
transition to a low-emissions future for New 
Zealand’s economy, such as the electrification 
of transport and process heat, while not 
disrupting the trilemma. 

came after the end of our financial year. We 
note that Transpower is progressing with 
its plan for transmission upgrades. Until 
completion, we expect significant spot price 
separation between the North and South 
Island. The cost of transmission upgrades 
will also have upward impacts on prices for 
consumers that will offset softer demand 
immediately following the smelter’s closure. 
Our view remains that we are relatively well 
positioned, with our North Island generation 
sources close to high demand areas.

LOOKING FORWARD

We had previously viewed market supply and 
demand as having achieved balance, allowing 
a clear pathway for generation development, 
supported by our ongoing leadership in 
e.transport. Following the announcement 
on the pending closure of the Tiwai Point 
aluminium smelter, there is an increased 
risk of volatility in the market, as supply and 
demand will have to rebalance yet again. 
There remains the opportunity for renewable 
electricity growth as decarbonisation of 
the economy continues to be an enduring 
theme. MBIE scenario modelling* suggests 
that demand for renewable electricity may as 
much as double in the period to 2050.

There are heightened financial risks due 
to the economic impact of the COVID-19 
pandemic, including pricing pressures, which 
point to the clear need to focus on efficiency. 
In addition, there needs to be greater clarity 
from the Government on essential services 
designation for critical infrastructure like 
Turitea.

* Electricity demand and generation scenarios (EDGS), July 2019

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
ENGAGING WITH OUR STAKEHOLDERS.

Building and maintaining 
relationships with stakeholders 
across our business is crucial to 
our success. Our strategy and 
business plans are developed with 
consideration given to the relevant 
needs and wants identified by these 
stakeholders as most important to 
them. 
This year, we wanted to engage with 
our nine stakeholder groups and 
were all set to go when the country 
went into lockdown. We consulted 
those closest to our stakeholders, 
our internal relationship owners, and 
the consensus was it would be more 
appropriate if they completed the 
survey on behalf of their stakeholder 
groups. We will undertake the 
detailed stakeholder engagement, 
we had planned, later in 2020, when 
the time is right.
Stakeholders, their specific role,  
how we engage with them and 
what’s important to them are 
described here.

PARTNERSHIPS

SHAREHOLDERS & INVESTORS

IWI

GOVERNMENT & REGULATORS

Via our partnerships, we seek and deliver 
opportunities through which we can develop 
mutually beneficial ventures aligned with our 
mission, purpose, vision and goal.

Approximately 80,000 investors and 
shareholders provide the stability and 
financial capital for our business to grow  
and continue to create value.

Our close relationships with iwi provide us 
with the platform through which to establish 
long-term, mutually beneficial partnerships 
and plans.

Government and regulators set the 
regulatory frameworks that determine our 
operating environment and provide the 
construct within which we can develop our 
business.

•  Natural resources
•  Brand
•  Loyalty

•  Operational excellence
•  Generation development
•  Safety & wellbeing

•  Natural resources
•  Generation development
•  Climate change

•  Safety & wellbeing
•  Climate change
•  Customer experience

WHAT IS IMPORTANT TO THEM ABOUT MERCURY THIS YEAR?

We build positive, mutually beneficial, 
longstanding relationships with the 
communities in which we operate. Some of 
the ways we engage with our partners are 
through commercial joint ventures, customer 
reward partnerships, and by dedicating time 
and effort into understanding each other’s 
business.

HOW DO WE ENGAGE WITH THEM?

Our shareholders and investors are the 
backbone of our business. We engage 
through material market updates, annual 
and half year reports, earnings and dividends 
announcements and quarterly operating 
reports, adhering to the principles of 
continuous disclosure. Our management 
and Board also deliver an annual shareholder 
meeting (ASM), provide analyst briefings and 
hold institutional investor meetings.

Many of the areas where our generation 
facilities (hydro, geothermal and wind) 
are located are of cultural and historical 
significance for iwi. In order to ensure that 
we respect, value, protect and sustain these 
areas, proactive engagement occurs with iwi. 
This includes partnership meetings, contract 
discussions, engagement on proposed new 
work and completing live work, industry 
conferences and supplier briefings.

We work collaboratively at different levels 
of government and with other governing 
entities to develop solutions, identify 
opportunities, and overcome challenges. 
Engagement takes place through formal 
scheduled meetings, responses to 
submissions, ministerial briefings, and 
participation in energy industry events and 
regulatory/political forums. We host site 
visits and engage through the development 
of external reports that we commission or 
contribute to.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
ENGAGING WITH OUR STAKEHOLDERS. (CONTINUED)

COMMUNITY

SUPPLIERS

INDUSTRY PARTICIPANTS

CUSTOMERS

EMPLOYEES

Our community relationships provide us with 
support to operate and the context to better 
understand the social and environmental 
issues we face in our communities.

Our suppliers deliver products and services 
that allow us to enhance our business and 
operations.

Industry participants provide an opportunity 
to share, exchange knowledge and grow the 
industry to its highest potential.

Customers sustain our business, provide the 
foundation for continued growth and future 
product development.

Our 786 employees drive our business. 
Through their skills, knowledge, diversity  
and efforts we thrive and prosper.

•  Natural resources
•  Generation development
•  Safety & wellbeing

•  Sustainable growth
•  Operational excellence
•  Safety & wellbeing

•  Natural resources
•  Safety & wellbeing
•  Climate change

•  Customer experience
•  Customer loyalty
•  Safety & wellbeing

•  Capability & development
•  Safety & wellbeing
•  High Performance Teams

WHAT IS IMPORTANT TO THEM ABOUT MERCURY THIS YEAR?

Key team members actively participate in 
a variety of community forums. We also 
sponsor events in the communities in which 
we operate and respond to community river 
flow and lake level requests. Through our 
role in the Waikato Catchment Ecological 
Enhancement Trust (WCEET), we engage 
on improvements to the natural and social 
environments which the business depends 
upon. We work with budgeting groups and 
government agencies to understand and 
better support the needs of vulnerable 
customers.

Suppliers are continuously engaged in 
completing various projects or fulfilling 
on-going customer and other business 
commitments. We also use business review 
meetings, contract negotiations, supplier 
briefings and proactive engagement with 
industry conferences to work collaboratively 
with, gain insight into, and develop new 
standards with suppliers. 

HOW DO WE ENGAGE WITH THEM?

We work collaboratively with the energy 
industry to provide and support new 
opportunities for growth as well as to 
overcome challenges. We work with various 
industry participants through one-on-one 
meetings and active participation in industry 
groups such as ERANZ, Business Energy 
Council, Sustainable Business Council and 
Business New Zealand. We also regularly 
attend and contribute to industry events and 
conferences, as well as stakeholder events 
organised by sector participants. We do this 
in order to stay across industry issues, assist 
with solutions, and to contribute to future 
progress and innovation. 

Our customers are at the core of everything 
we do. Understanding their needs, 
expectations and what they care about  
helps us to have in place the products  
and services that earn their business.  
Our customer relationships are valued, and 
often longstanding. We strive for effective 
and responsive customer engagement, 
proactively seeking feedback and input 
through several avenues including: through 
our Customer Engagement Centre (via 
calls, email, letters, direct mail); our website 
and My Account portal; via social media; 
customer surveys and market research; 
and through our community partnerships, 
sponsorships and events.

Ensuring different perspectives and 
viewpoints are heard is crucial to our success. 
We do this through engagement and 
pulse surveys, as well as our internal digital 
communication channels and our network of 
change supporters. Our employees also stay 
connected to what’s important through our 
development and onboarding programmes. 

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
THE RISKS
WE FACE.

KEY RISK  
AREA

FACTORS 
IMPACTING 
CURRENT 
TRENDS

A comprehensive summary of 
Mercury’s key risks and how 
we manage them is included 
in the Corporate Governance 
Statement that is published 
alongside this report. We 
review and update these risks 
every year to take into account 
changes in the external 
environment and our internal 
operations. 
In this section we provide a 
summary of the trends we 
have seen this year in our key 
risk areas. We take these into 
account in our view of what 
matters most and to shape 
our focus for how we create 
value over time.

OUR 
PILLARS

SAFETY

COMPLIANCE

REPUTATION

OPERATIONAL

FINANCIAL

PEOPLE

Finance and related 
activities have key process 
controls that are subject 
to regular review and 
continuous improvement. 

This year we have 
focussed on managing the 
construction of the Turitea 
wind farm. We have also 
been mindful of managing 
any shifts in financial risks 
resulting from broader 
impacts of COVID-19.

Ongoing investment 
in leadership and 
management programmes, 
and a focus on High 
Performance Teams, 
have contributed to 
staff engagement levels 
continuing to lift. 

We look at a range of key 
people information to 
increase the transparency 
of people risk, enabling 
monitoring and response. 

The importance of 
stakeholder relationships 
and input has continued to 
grow across each of our key 
stakeholder groups – our 
customers, communities, 
partners and owners. 
The amount of data that 
we hold and rely on also 
continues to increase. 
The level of activity and 
sophistication of cyber-
attacks continues to 
increase globally. 

This year, we continued 
to build our security 
enhancement programme 
and strengthen our 
stakeholder management.

Operational risks have 
a potentially significant 
impact on our ability to 
generate electricity and 
create revenue. The key 
operational risks include: 
asset management and 
availability; fuel availability; 
market exposure; and 
business interruption 
(events such as natural 
disasters or global 
pandemics).

In managing these risks in 
FY20, we were focussed on:

•  the programme 
of drilling, hydro 
refurbishments and 
geothermal maintenance 
shuts 

•  the ongoing situation in 

relation to Tiwai

•  the impacts of COVID-19

Safety is an essential 
objective for us and 
continues to be one of the 
major risks that could affect 
the wellbeing of employees, 
contractors, customers, and 
the public. 

We continue to make 
progress on key aspects 
such as:

•  our Process Safety 
programme, with 
WorkSafe’s conditional 
acceptance of our safety 
cases

•  continued improvements 
in reporting of incidents 
or near misses, allowing 
more informed decisions 
to be made regarding 
areas for improvement

This year we were mindful 
of managing any increase 
in safety risk due to the 
significant number of large 
projects over the course 
of the year, including 
our Turitea wind farm, a 
drilling campaign, hydro 
refurbishments and 
geothermal maintenance 
shuts. 

Compliance is important 
for our ability to operate 
to our desired capacity 
through key elements 
such as resource consents 
and within the Electricity 
Industry Participation Code. 
Compliance with internal 
policies is an important tool 
to assess risks and deter 
fraud. We also consider 
regulatory change in 
this area, which presents 
significant risks to Mercury.

In FY19, several  
regulatory processes 
that had the potential 
for significant impact to 
us were concluded. The 
outcomes of the Tax 
Working Group, Interim 
Climate Change Committee 
and EPR were all either 
supportive or largely 
neutral in their impact to 
us. During this year, while 
there have been fewer key 
regulatory review processes, 
we were aware of increased 
risks in this area resulting 
from broader impacts of 
COVID-19.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
PULLING IT ALL TOGETHER.

Focussing on what matters most.

Our five pillars, established in 2016, represent 
the key drivers of material value creation 
for our business. Together with our fifteen 
focus areas they enable us to integrate 
what matters most to Mercury and our 
stakeholders. They form the framework for 
our long-term business strategy, mid-term 
goals and short-term business planning 
and reflect the six capitals of the Integrated 
Reporting  framework (see below).

Each year our view of what is material for 
us is informed by reviewing our strategy 

against a broad context, including the 
items covered in the preceding pages: the 
external environment, what’s important 
to our stakeholders, risks to manage and 
opportunities to explore. We keep up to date 
with changes in these areas to consider how 
our approach needs to evolve to ensure we 
continue to create value.

Undertaking a materiality assessment, like the 
one plotted on this page, helps to visualise 
these aspects by combining what matters 

most to our stakeholders and what matters 
most to us. For our materiality assessment 
this year, we used our fifteen focus areas, 
related to our five pillars. 

All of the focus areas in the materiality 
assessment are important and, although they 
are each linked to one of our five pillars, they 
also relate to, and are supported by, each 
other. The assessment serves as a cross-
check to ensure our priorities remain aligned 
to what matters most.

OUR PILLARS

 CAPITALS

FY20 MATERIALITY ASSESSMENT

CUSTOMER

PARTNERSHIPS

KAITIAKITANGA

PEOPLE

SOCIAL &  
RELATIONSHIP

NATURAL 

MANUFACTURED

HUMAN

INTELLECTUAL

COMMERCIAL

FINANCIAL

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NATURAL 
RESOURCES

SAFETY & 
WELLBEING

CUSTOMER 
LOYALTY

CLIMATE 
CHANGE

CUSTOMER 
EXPERIENCE

GENERATION 
DEVELOPMENT

SUSTAINABLE 
GROWTH

ASSETS

HIGH 
PERFORMANCE 
TEAMS

BRAND

INDUSTRY & 
RESEARCH

CAPABILITY & 
DEVELOPMENT

IWI

OPERATIONAL 
EXCELLENCE

GOVERNMENT & 
REGULATORS

WHAT’S IMPORTANT TO US

The focus areas in the top right-hand corner are those that rank the highest. As the most material topics 
we have covered them in this Annual Report and used them to define the reporting boundaries.

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CREATING 
VALUE IN  
FY20.

Here we define our value creation in 
FY20, across our five pillars, that has 
been achieved through the adoption 
and continued development of our 
integrated approach.

PARTNERSHIPS

KAITIAKITANGA

Deep and enduring partnerships are a vital foundation for 
our business and broader economic outcomes. Kaitiakitanga 
(guardianship and protection) is embedded in our operations and 
the relationships we have with our commercial, community and 
iwi partners. Our long-standing partnerships with Māori and other 
landowners have been essential to new wind developments and 
existing geothermal operations that rely on the ongoing access 
to natural resources. Our commercial partnerships have focussed 
on green growth opportunities such as electric vehicle uptake in 
New Zealand. We are proud to have long-standing commitments 
to support local communities. These help to allow us to bring our 
purpose to life and ensure value creation extends past the direct 
economic performance of the company.

We harness energy from natural resources. We have a long-term 
focus that recognises the interests of other stakeholders, including 
future generations of New Zealanders. Our renewable generation 
contributes towards New Zealand’s renewable energy advantage 
that delivers value to customers and contributes to meeting  
New Zealand’s climate change goals. In order to protect the natural 
environment on which we rely to deliver energy to our customers, 
resource consent compliance is a key focus. We place a high 
priority on collaboration with government and local communities  
in which we operate to ensure ongoing natural resource availability, 
protection and enhancement of environmental outcomes, 
including the health and wellbeing of the Waikato River and its 
catchment.

COMMERCIAL

PEOPLE

We believe that the best way to create value in our business, 
and deliver the best experience possible to our customers, is by 
ensuring we have High Performance Teams on our side. We aim 
to make Mercury a great and safe place to work, where employees 
feel engaged and motivated to live out their full potential. We 
value diversity, particularly in contributing to innovative thinking, 
and have a culture of inclusion where people feel they can 
contribute and succeed in our business. The safety and wellbeing 
of our people and everyone we work with is a component measure 
of executive remuneration. We have a complementary focus on 
employee development, great people management and a high-
performance culture, which ensures staff are recognised and 
rewarded for excellence.

Our financial results reflected in this Annual Report, and the 
trends they reflect, are a product of our focussed ultra-long-term 
business strategy, centred on delivering value to our owners. We 
apply strong financial disciplines and robust risk management in 
operating our business and pursuing future growth. We take pride 
in our leading economic performance. We aim to deliver stable 
and sustainable cash flows that support dividends to our owners 
and grow in value over time. Through our partnerships and working 
with communities we also provide broader economic development, 
societal and environmental benefits.

CUSTOMERS

Our purpose is to inspire New Zealanders to enjoy energy in more 
wonderful ways. We are doing this through an approach that 
rewards loyalty, leverages customer-led technology, and makes 
our service seamless and easy for people. We are grateful to our 
customers for choosing us and in response we focus on what they 
tell us matters most to them – giving them a great experience, 
keeping them connected and helping to maintain security of 
their supply and rewarding their loyalty. Customer satisfaction is 
a core benchmark for our business and to ensure that everyone 
at Mercury is accountable for delivering customer focus, it is a 
component measure of executive remuneration. 

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
LIVING ENERGY FREEDOM.

In this section we seek to bring to life our pillars, 
and what they mean to us, through a story that 
is an example of material activity undertaken 
through the year. We reflect on our responses to 
challenges and opportunities, share our successes, 
progress and also lessons from things that didn’t 
go as planned. We also feature, as part of our 
Kaitiakitanga pillar, our approach to preparing 
for climate change so you can understand more 
about our contribution in this area towards a more 
sustainable future.

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1. CUSTOMER.

OUR FOCUS

Mercury’s Customer pillar focus areas are Brand, Loyalty and Experience. 
To bring this to life, here we tell the story of Helen Tua’s contribution to the 
experiences that some of our more vulnerable customers have with us. 

CLOSE CONNECTIONS 
HELP VULNERABLE 
CUSTOMERS.

Imagine moving into a home without 
electricity and not being able to get electricity 
connected due to your credit history.

Then imagine moving in on a windy 
Wellington evening, the week the country 
went into a lockdown as a result of the 
nationwide response to the COVID-19 
pandemic.

That was the reality a customer faced 
after being released from prison and 
remanded to a specific address due to parole 
requirements.

Unfortunately, not having electricity was not 
reason enough to move the customer to 

different accommodation, Porirua Whānau 
CEO Liz Kelly said.

“I had this customer who had just been 
released from prison during Level 4 (the 
country’s highest lockdown response level) 
and was facing the weekend without power. 
He was released on a Friday around 6pm, 
and I really didn’t think there were any 
options. The customer had to stay at that 
address and there was nothing I could do to 
change that,” Liz said.

“I called Helen Tua at Mercury, pretty 
desperate. I thought it was terrible, this 
customer was supposed to be starting out 

fresh, having a second chance, but had to 
move into a dark house during lockdown. 
That’s a lonely welcome back to the world,” 
Liz added. 

Helen Tua is Mercury’s Community Liaison 
Manager, a role she has had for ten years.

She was able to connect with others at 
Mercury, and through collective efforts of 
members of the customer team, had power 
to the house up and running within the hour 
through Mercury’s prepay product GLOBUG.

GLOBUG is New Zealand’s largest residential 
prepay electricity provider. Social agencies, 
budgeting services and other community 

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MERCURY ANNUAL REPORT 2020 
 
 
PILLAR  
SUMMARY.

PILLAR STORY FOCUS AREA

•  Experience

OTHER FOCUS AREAS

•  Brand

•  Loyalty

STRATEGIC GOALS: MID-TERM

We are inspiring, rewarding and making it 
easy for customers in our target segments.

STRATEGIC GOALS: LONG-TERM
New Zealand’s leading energy brand.

KEY RISKS

•  Errors in customer connections, billing 
or general customer communications, 
impacting on customer service. 

•  Loss of data or a systems failure impacting 

on our ability to operate core systems.

SOCIAL AGENCIES, BUDGETING 
SERVICES AND OTHER COMMUNITY 
SUPPORT GROUPS RELY ON GLOBUG 
BECAUSE IT CAN HELP STRUGGLING 
HOUSEHOLDS AVOID BUILDING 
UP DEBT THROUGH UNMANAGED 
ENERGY CONSUMPTION.

support groups rely on GLOBUG because 
it can help struggling households avoid 
building up debt through unmanaged energy 
consumption.

such as Porirua Whānau. Her drive aligns 
with Mercury’s belief in long-term fair and 
affordable access to electricity as a step to 
helping all financially challenged households.

It requires ongoing work because some 
customers are marginalised by society and 
can distrust the intentions of businesses and 
government authorities. 

Customers pay for electricity ahead of using 
it, in a way that can be coordinated with 
their budgets, rather than being sent a bill 
at the end of the month, which can make 
budgeting more difficult.

Liz said she was delighted, and grateful Helen 
got electricity connected so quickly, but 
wasn’t surprised as Helen is well-known for 
“getting things done”. 

Helen has dedicated herself to building 
strong relationships with community groups, 
budgeting and government agencies 

She sees a strong connection between this 
work and our mission of Energy Freedom.

The situation of the person just released from 
prison was an example of that.

Maintaining relationships with the 
community leaders and social agencies 
working hard on behalf of vulnerable 
customers helps bridge the gap between just 
supplying electricity and understanding our 
customers. 

Helen says that when we understand our 
customers, we can support them better and 
ensure low income families, or individuals 
in difficult circumstances, get a fair deal. 

“It’s very difficult for people who have served 
prison time to rebuild their lives,” Helen said.

“They’ve generally come from vulnerable 
backgrounds and then they’re further 
stigmatised by having a criminal record.” 
Having poor credit records can make it 
difficult to get a post-pay account. 

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MERCURY ANNUAL REPORT 2020 
 
 
CREATING VALUE 
THROUGH OUR 
CUSTOMERS.

COMMERCIAL

CUSTOMER

PEOPLE

PARTNERSHIPS

KAITIAKITANGA

Helen’s contribution to the support we offer to 
vulnerable customers integrates thinking and 
delivers shared value across other Mercury 
pillars. For example:

•  PARTNERSHIPS – working with budgeting 
agencies and other groups in communities 
helps our knowledge of customer needs 
while building trust in our brand and 
for our sector (Industry & research and 
Government). 

•  COMMERCIAL – Insights from Helen’s work 
contributed to improvements in the way 
we managed the risk of growing debt levels 
(Sustainable growth).

GLOBUG OFFERS THEM, AND MANY 
OTHERS, A VIABLE OPTION THAT 
ENABLES THEM TO WORK WITHIN 
THEIR MEANS AND GIVES THEM FAIR 
ACCESS TO ELECTRICITY.

“GLOBUG offers them, and many others, a 
viable option that enables them to work within 
their means and gives them fair access to 
electricity.”

For many of GLOBUG’s 22,000 customers, 
keeping up with bills is a daily struggle. We 
work closely with those social and community 
agencies actively helping struggling 
households to ensure GLOBUG customers are 
treated with empathy and dignity, Helen said.

The economic impact of the COVID-19 
pandemic created additional challenges for 
many customers. There were answers we 
needed from community organisations and 
social services on how we could best support 
these customers. 

“The biggest challenge within the GLOBUG 
world was: how do we support access to the 
essential service of electricity, but not grow 
the debt of customers who are largely with 
this product because it helps them avoid 
debt?”

In early April, escalating debt was at risk of 
getting out of hand.

Through Helen’s established contacts, 
we sought guidance and feedback on its 
approach, and that helped develop a new 
energy management solution that was 
sustainable commercially for us and worked 
for our vulnerable customers by supporting 
their budgeting needs.

Options for payment deferrals were 
established, repayment rates were reviewed, 
training focussed on empathy and 
communications were enhanced with an 
emphasis on care and clarity.

Committed work from all those involved 
with GLOBUG enabled changes to be made 
quickly, and embedded for some longer term 
positive outcomes. 

This approach was subsequently mirrored 
across post-pay customer relationships as 
well as partner and supplier engagements.

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LOOKING FORWARD

Mercury expects the impacts of COVID-19 on the 
economy to impact a growing number of our 
customers through FY21 and possibly beyond. The 
cost of electricity will be top of mind and therefore 
the efforts to support customers will continue to be 
important and also expected of us by stakeholders. 
We expect vigorous competition to continue to be 
a feature of the market, with activity ramping up 
as competitors reposition portfolios ahead of the 
impacts of a South Island demand drop that will 
result from the signalled closure of the Tiwai Point 
aluminium smelter. We intend to fight to earn our 
customers’ business, using data to target digital 
offers that inspire, reward and make things easy.

MERCURY ANNUAL REPORT 2020 
 
 
2. PARTNERSHIPS.

OUR FOCUS

Mercury’s Partnerships pillar focus areas are Industry and Research, Iwi and 
Government (central and local) relationships. To bring this to life, we tell the story 
here of our evolving work to develop a partnership strategy with the aspirational 
goal of making the Waikato the World’s Best Catchment.

THE WORLD’S 
BEST CATCHMENT.

“The mighty Waikato River is under pressure. 
Water quality is declining and there is 
growing competition for its resources. 
But if we make the right decisions now 
and work together, we can make the 
Waikato the World’s Best Catchment,” says 
Gavin Williamson, Mercury’s Catchment 
Sustainability Manager.

For Gavin this is a personal mission. He 
remembers 40 years ago when things 
were different: “When I was a schoolboy 
swimming in Lake Karāpiro I could see clearly 
to the bottom of the river. Now I couldn’t see 
six inches in front of my face.”

Mercury’s ‘best catchment’ aspiration is a 
bold idea that comes from our long history in 
the catchment and our unique perspective of 
the river. 

“With nearly 100 years’ experience operating 
power stations on the river, Mercury is a long-
term caretaker. We are well experienced in 
knowing how much water there is, where it is 
in the catchment, and when,” Gavin explains.

“We see the long landscape from Taupō 
to below Karāpiro and we are confident in 
our knowledge and expertise, but the huge 
positive outcome we are imagining needs 
everyone to be on board.”

OUR CHANGING APPROACH

Our vision is an evolution of our relationship 
with the river, and those we share it with. 
The Waikato awa (river) flows from Taupō 
to Te Puaha o Waikato (the river mouth). 
The catchment extends even further, from 
the upper reaches of the Whanganui (via 
the water diversions around the mountains 
and into Lake Taupō) to Auckland, where 
water is piped from the Waikato River by 
Watercare. In addition, Hamilton, Taupō and 
other communities along the river rely on 
drinking water from the Waikato catchment. 
The waters of the awa are also the lifeblood 
of industry, tourism, recreational activity and 

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MERCURY ANNUAL REPORT 2020 
 
 
PILLAR  
SUMMARY.

PILLAR STORY FOCUS AREA

•  Iwi

OTHER FOCUS AREAS

•  Government

•  Industry

STRATEGIC GOALS: MID-TERM
There is bipartisan national, regional and 
community support for positive contributions 
from the renewable electricity industry.
Existing relationships are maintained and 
strengthened, and new relationships are 
created, consistent with our purpose and 
strategy.

STRATEGIC GOALS: LONG-TERM
Recognised as a leader within our industry, 
with our industry recognised as a positive 
contributor to New Zealand, and with 
Mercury’s access to fuel enduring and 
enhanced.

KEY RISKS

•  Short and long-term changes in supply 

and demand impacting on the wholesale 
electricity market.

•  Regulatory changes that could affect how 
we manage our integrated business model.

WE HAVE LEARNT THAT THE 
AWA IS A SACRED TUPUNA AND 
LIVING TAONGA. WE HAVE A DUTY 
TO NURTURE ITS HEALTH AND 
WELLBEING.

irrigation for dairy and horticulture. All have 
needs, and all will be able to offer insight into 
how to make the catchment better. 

During our consenting process 20 years 
ago, we listened carefully to what people 
had to say and took the opportunity to talk 
with them about how we might carry out 
our responsibilities as a hydro generator with 
appropriate care and respect for the river.

As we matured as an organisation our 
conversations in the catchment became both 
more focussed and also more diverse. We 
saw that we were all on similar pathways. 

We’ve learned from others who also love this 
place and have been here the longest. We 
believe that the way in which the region’s 
water resources are managed has to 
involve the strongest possible participation 
and endorsement by river iwi, whose rohe 
(territories) stretch from the Whanganui 
diversions through the Waikato and to the 
Tasman sea. Strong relationships have 
been formed and tested, and trust and 

understanding have grown. We have learnt 
that the awa is a sacred tūpuna (ancestor) 
and living taonga (treasure). We have a duty 
to nurture its health and wellbeing. 

GOING FORWARD TOGETHER

While we imagine what the ‘best’ catchment 
might look like, we’ve also seen what ‘bad’ 
looks like. 

In 2017, a haerenga (tour) visited the Murray-
Darling Basin in Australia, a catchment 
with a complex and severely challenged 
water management system that is dealing 
with systemic issues around water quality 
and allocation. The tour, called Tukitahi 
(representing ‘going forward together’) 
brought together people from the mountains 
to the sea: iwi from along the Waikato River 
and Ngāti Rangi from the Whanganui awa 
headwaters, Mercury, Genesis Energy, NIWA, 
Watercare, Fonterra and other organisations, 
and local and regional councils and central 
government. 

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CREATING VALUE 
THROUGH OUR 
PARTNERSHIPS.

COMMERCIAL

CUSTOMER

PEOPLE

PARTNERSHIPS

KAITIAKITANGA

Our vision for Waikato to be the World’s Best 
Catchment involves integrated thinking and 
delivers shared value across other Mercury 
pillars. For example:

•  COMMERCIAL – the collaborative approach 
to catchment management supports our 
necessary hydro refurbishment programme 
that secures Sustainable growth.

•  KAITIAKITANGA – our partnerships take 

us towards being recognised as a leader in 
the ultra-long-term management of both 
physical and natural Assets.

•  PEOPLE – Capability & development 

of our people is enhanced through work 
involving complex interconnections as well 
as cultural and historical considerations.

“We saw that the Waikato River catchment 
isn’t that broken. We started to imagine 
what could be done together to start to 
repair years of human impact and improve 
the catchment in terms of allocation and 
use, creating headroom for positive land use 
change and improved storage opportunities,” 
says Gavin.

“Amidst the increasing urgency of the 
national conversation around water, 
freshwater reforms, regional policy processes 
and pressure on the catchment from 
Auckland’s 2019/20 drought, we somehow 
have to find time to see the catchment 
through each other’s eyes and work together 
for sustainably better outcomes.

This thinking led to the idea of the World’s 
Best Catchment vision. To put this vision 
into action, Mercury’s leadership endorsed a 
new role, Catchment Sustainability Manager, 
and Gavin was appointed. “This is a truly 
long-term, future-focussed role working with 
iwi, regulators, scientists, the region’s hugely 
important farming communities and others,” 
says Gavin.

“Our first step will be to take our World’s Best 
Catchment vision to our key partners in the 
community and get their views on whether 
this fits with what they are thinking.

“We plan to work closely with the Waikato 
Regional Council, aligning with its freshwater 
strategy. Also with river iwi, to understand and 
align with their strategic plans and aspirations 
for water. We will talk to our corporate 
partners in the catchment to see how we can 
pool our resources and work collaboratively on 
projects that benefit the catchment.”

Getting started has already been challenging. 
It’s not just the catchment that’s under 
pressure – people and organisations are 
stretched and working hard on immediate 
priorities.

“Success will look different for everyone 
but for true success everyone needs to find 
alignment. The bottom line is that the river 
comes first, with water quality and water 
allocation including iwi allocation front and 
centre.”

FROM IDEA TO REALITY

The waters of the awa keep flowing, and as it 
passes downstream, Mercury uses its gravity 
to generate renewable electricity. 

“It’s our privilege to be here,” says Gavin. 
“We’ve been here for a long time, we’re going 
to be here for a long time too. The values we 
hold run deep in the organisation. 

“Our plan is to work with our partners to 
explore their connections to the river and 
learn what could make this the world’s best 
catchment from their point of view.

“This is a huge ambition, bigger than me and 
bigger than Mercury. We need everyone to be 
on board to make this the best it can be, and 
that means the best in the world.”

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LOOKING FORWARD

We are aiming to reconnect in FY21 with those 
who were part of the Tukitahi tour to reconsider 
the insights we all had. The Government has 
released its Three Waters reform programme 
and it will be important to listen and learn about 
the implications of that on each other, and to 
plan for appropriate actions that benefit the 
collective needs of those who are part of the 
Waikato catchment. We will be considering new 
partnerships that can support our business 
strategy, and reviewing established partnerships  
so that areas of shared value are understood.

MERCURY ANNUAL REPORT 2020 
 
 
3. KAITIAKITANGA.

OUR FOCUS

Mercury’s Kaitiakitanga pillar focus areas are Natural Resources, Climate 
Change and Assets. To bring this to life, here we tell the story of the 
refurbishment of our Whakamaru hydro station. The refurbishment 
reflects how we balance our care for the legacy of our assets with 
recognition of their place in the wider environment. 

POWERING UP 
WHAKAMARU FOR 
THE FUTURE.

Mercury’s Waikato Hydro System comprises 
nine power stations housing 39 huge 
turbines turned by gravity from the powerful 
water of the Waikato River. Keeping this 
interconnected system of water and 
machinery running efficiently is a science, but 
it’s also an art – and a huge responsibility. 

A commitment to the te ao Māori concept of 
kaitiakitanga (guardianship and protection) 
influences our long-term purpose as an 
organisation. It guides the ways in which 
we work with both natural resources and 
the power stations that were built by earlier 
generations of New Zealanders.

Our Waikato Hydro System generates 
around 10% of New Zealand’s electricity, 
and it contributes 60% of Mercury’s input of 
renewable energy to the national grid. 

It is not surprising then that our reinvestment 
programme for the nine hydro stations on the 
Waikato River is a significant investment item. 
So far around a quarter of a billion dollars has 
gone back into these mighty machines over 
the past decade. 

Applying the concept of kaitiakitanga 
means our infrastructure teams look 
not for more of the same, but better: 
sustainable improvements to efficiency, risk 

management, resource management and 
environmental outcomes. The commercial 
benefits of our approach to custodianship of 
the assets derive from securing long-term 
access to water (the fuel supply) and from 
being able to generate the most electricity, 
most efficiently, from that water.

This business commitment is planned by 
our Asset Management teams. Graeme Hill, 
Infrastructure Asset Manager, leads these 
teams and it’s a job he is passionate about. 

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MERCURY ANNUAL REPORT 2020 
 
 
PILLAR  
SUMMARY.

PILLAR STORY FOCUS AREA

•  Assets

OTHER FOCUS AREAS

•  Natural resources

•  Climate change

STRATEGIC GOALS: MID-TERM
We understand and are managing the long-
term sustainability of the natural resources 
and assets that we rely on.

STRATEGIC GOALS: LONG-TERM
Recognised as a leader in the ultra-long-
term management of both physical and 
natural assets.

KEY RISKS

•  An event that impacts on the viability, 
efficiency or operability of our power 
stations.

•  Availability of water for hydro generation 
and geothermal fluid for geothermal 
generation.

IN TERMS OF SCALE AND 
COMPLEXITY WHAKAMARU IS THE 
FIRST STATION WHERE WE EITHER 
OVERHAULED OR REPLACED, IN 
TOTAL, EVERY MAJOR PART OF THE 
MAIN GENERATING UNITS.

“The whole concept of doing our part while 
we’re looking after the hydro station assets 
then passing it over to future generations is 
something that my team really subscribes to,” 
he says.

That means taking an ultra-long term view – 
fitting, when you consider that our connection 
to the awa (river) already dates back almost a 
century.

“When we plan refurbishment* of these 
machines, working closely with operation 
and maintenance teams, we are looking at 
a 50-year horizon (operational life) for the 
generating plant.

“We look at the age of the stations and 
when the equipment was last refurbished or 
replaced. What is their actual performance 
like right now? What is their condition and 
corresponding risk? Where do they sit in the 
inter-connected hydro system so that the 
timing of the outage required to refurbish 
them has minimal impact on the system’s 
ability to generate electricity, our resource 

consents, and our obligations to New 
Zealand’s electricity market?”

Whakamaru hydro station is located 40km 
north of Taupō. It was commissioned in 1956. 

“In terms of scale and complexity 
Whakamaru is the first station where we 
either overhauled or replaced, in total, every 
major part of the main generating units,” 
says Graeme. It required several years of 
planning and more than four years of work to 
complete.

The teams saw opportunities to achieve 
greater efficiency in the use of the water 
through careful consideration of the turbine 
components and working closely with the 
manufacturers, Andritz Hydro and GE 
Renewable Energy. 

The outcome was an increase in unit capacity 
on each of the four units of 5-6MW, meaning 
an overall increase of over 20% (from 100MW 
to around 124MW) – enough to power an 
additional 12,700 electric vehicles annually. 

The station’s design and position within the 
inter-linked hydro system meant flow could 
‘bottle neck’ as the station lacked flexibility, 
so increasing the ability to pass water flow 
through the station efficiently was another 
important outcome.

“The project involved the rehabilitation 
of four units – that’s four years of work 
including around six months outage time 
per unit each year. It’s a huge level of 
sustained concentration for everyone on site, 
contractors, designers and manufacturers 
offshore.” 

During the six-month installation of each unit 
there were up to 40 people on site, six days a 
week, with international specialists, and work 
crews from the local region.

Aligned with our focus on our people, robust 
health and safety plans and procedures were 
embedded, and regularly reviewed. Minor 
incidents and near misses were reported and 
analysed. Pleasingly, reflecting the attention 

*  The term “refurbishment” is used where equipment has been overhauled close to original condition but not actually replaced. As the machines 
move closer to their end of life, full rehabilitation/replacement is needed. This has been a major undertaking at Mercury over the last decade.

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MERCURY ANNUAL REPORT 2020 
 
 
CREATING vALUE 
THROUGH 
KAITIAKITANGA.

20% 

OvERALL 
INCREASE IN 
CAPACITy

$67M

WHAKAMARU 
REHABILITATION 
PROGRAMME

COMMERCIAL

CUSTOMER

PEOPLE

PARTNERSHIPS

KAITIAKITANGA

Our Whakamaru hydro station refurbishment 
integrates thinking and delivers shared value 
across other Mercury pillars. For example:

•  PEOPLE – this large project embedded 

high standards of Safety & wellbeing, and 
benefitted from Capability & development 
embraced by team members.

•  PARTNERSHIPS – design, manufacture 
and equipment installation works with 
Industry partners for the benefit of New 
Zealand’s electricity market.

•  COMMERCIAL – delivering output gains 

through Operational excellence contributes 
to Sustainable growth.

given to health and safety across complex 
tasks involving huge machinery, the project 
was injury-free.

Unit outages were scheduled over summer 
months to lessen the impact on the market of 
reduced generation at the station. 

With major parts being manufactured and 
transported from around the world, the 
first time they are assembled is on site, and 
that has informed the approach for future 
projects.

“You can’t underestimate the importance 
of technical quality assurance because 
we’re getting equipment manufactured 
in many countries. This requires the main 
manufacturer to apply rigorous attention to 
detail, and that they closely manage their 
subcontractors.” 

Time needs to be allowed for quality 
assurance to avoid problems later that can 
cause delays and performance problems. 
Often we may need a Mercury team member 
or independent specialist to be present at the 
factory to inspect manufacturing processes 
and witness testing.

Fast forward and the project is complete. 
A sunny March afternoon, a gathering 
in Taupō for many of the Mercury team 
and representatives from our supporting 

partners MB Century, Andritz Hydro, and 
GE Renewable Energy who contributed to 
the Whakamaru rehabilitation. Speeches 
were made, and when Graeme stood up to 
address the assembled group, in front of 
him were around 40 people, some of whom 
had been part of the project since early 
thinking started over 14 years ago. Graeme is 
passionate about the legacy of the assets, but 
it’s the people who work on them, and in the 
background to support them, that make him 
proud. 

“Completion of this project is a massive 
milestone in Mercury’s multi-million dollar, 
multi-decade journey of reinvestment on the 
Waikato River. We could not have done this 
without the support, dedication, know-how 
and commitment to a quality result from 
everyone involved.”

The Whakamaru programme came in on 
budget at $67 million. Extensive works at our 
power stations at Ōhakuri, Arapuni, Aratiatia 
and now Whakamaru are part of significant 
re-investment – a total of a quarter of a billion 
dollars so far – to secure the operational 
efficiency and effectiveness of the hydro 
system for future generations.

CLICK HERE to watch eight months work in  
30 seconds of the Whakamaru station upgrade.

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LOOKING FORWARd

Enabling works and equipment manufacture will 
continue for the significant rehabilitation work 
planned for Karāpiro power station. Other works 
planned include completion of the Rotokawa 
geothermal plant upgrade and making progress 
on our multi-year transformer replacement 
programme on our hydro power stations.
Ongoing work associated with our Dam Safety 
programme recognises the role we play in 
protecting our communities. 
We will continue to review our environmental 
monitoring programmes to ensure we are investing 
in good science that not only helps us understand 
the impacts of our operations, but also contributes 
to a wider community understanding of changes 
occurring in our areas of operation. 
We will undertake climate change scenario 
modelling and consider the appropriateness of 
emissions targets.

MERCURY ANNUAL REPORT 2020 
 
 
PREPARING FOR 
CLIMATE CHANGE.

Reporting against the Task Force on  
Climate-related Financial Disclosures (TCFD).

Climate change has been identified as a 
material issue for Mercury and our many 
stakeholders. It is a focus area under our 
Kaitiakitanga pillar, and we acknowledge we 
have a kaitiakitanga, or guardianship, role 
to play in helping New Zealand reduce its 
greenhouse gas (GHG) emissions and to take 
responsibility for our own climate change 
impacts.

There is growing awareness of the financial 
risks associated with climate change. 
Corporate entities are expected to effectively 
manage risks and capitalise on emerging 
opportunities and a recognised reporting 
framework has been produced by the TCFD. 
The Financial Stability Board (FSB) created 
the TCFD in 2015 to develop a consistent 
disclosure framework for use by companies in 
providing information to their shareholders. 

We have used the TCFD framework over the 
past two annual reporting periods and we 
will continue to do so, gradually developing 
the completeness and transparency of our 
climate change disclosures (our current 

compliance is represented in the table below). 
We have structured this section using the 
recommended TCFD elements of governance, 
strategy, risk management, metrics and 
targets.

TCFD ELEMENT

FY20

FY21

FY22

FY23

Governance

Strategy

Risk 
Management

Performance 
indicators and 
targets

1.5˚ and 2.0˚C scenario 
modelling to be 
undertaken in FY21

Mercury to investigate 
the appropriateness of 
targets in FY21

Aligned  
with TCFD 
requirements

In progress

GOVERNANCE &  
RISK MANAGEMENT  
FOR CLIMATE CHANGE.

Our Board has responsibility for Mercury’s 
strategic direction and operation. 
Responsibilities are set out in the Board 
Charter, and in relation to climate change 
include: 

•  establishing clear strategic goals with 

appropriate supporting business plans and 
resources 

•  monitoring strategy implementation, 

financial performance and the integrity of 
reporting 

•  ensuring that effective audit, risk 

management and compliance systems are 
in place and monitored 

Climate Change risks and opportunities 
are currently managed, at a governance 
level, through the Risk Assurance and 
Audit Committee (RAAC) of the Board. 
The RAAC has responsibility for overseeing, 
reviewing and advising the Board on our risk 
management policy and processes including 
climate related risks and opportunities. In 
FY20, we updated our Board skills matrix to 
specifically include climate change, reviewed 
its risk management framework and made 
disclosure of climate-related risks more 

explicit. Annual review of climate related 
risks is included as part of internal risk 
management processes.

MANAGEMENT’S ROLE

One of the responsibilities of the Chief 
Executive and Executive Management 
Team (EMT) is developing and making 
recommendations to the Board on our 
strategies and associated initiatives including 
climate change. In FY20 the EMT was 
involved in several workshops and discussions 
reviewing our climate change risks and 
opportunities and approving a Climate 
Change Management Plan (CCMP).

OPERATIONAL MANAGEMENT

The day-to-day management of climate 
change related risks and opportunities occurs 
across Corporate Affairs/Communications, 
Finance/Risk Assurance and Sustainability, 
Hydro Wholesale, Geothermal and Customer. 
Our CCMP documents our strategy, climate 
related risks and opportunities, management 
response, roles and responsibilities and 
includes a three-year action plan.

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MERCURY ANNUAL REPORT 2020 
 
 
STRATEGY.

EMT workshops undertaken in FY20, on climate-related risks and opportunities, produced a 
list of 13 covering all the TCFD risk types. A summary of the top five, their potential impacts, 
timelines, risk rating and how we intend to manage them is provided in the table below.  
Again, we have aligned these to the relevant TCFD categories for consistent reporting.

H TRANSITIONAL: POLICY &  

LEGAL RISK

H TRANSITIONAL: MARKET  
& TECHNOLOGY RISK

M TRANSITIONAL: MARKET &  
TECHNOLOGY OPPORTUNITY

M TRANSITIONAL: MARKET RISK  

& OPPORTUNITY

M PHYSICAL RISK

S M L

S M L

M L

S M L

L

A decrease in demand due to de-industrialisation, 
increased use of batteries and an increase in de-
centralised energy generation will impact on the 
electricity market and Mercury. Technologies already 
exist in many of these areas and additional new 
technologies will be developed to aid the transition 
to a low carbon future. It is important that we closely 
monitor future technology developments, their 
costs and returns, as they are crucial considerations 
should we consider investing in them. We have 
experience in grid-scale and domestic batteries 
and associated solar technologies. As we develop 
large-scale wind generation we will broaden our 
knowledge and understanding of this technology 
which may have applications at a smaller scale in 
the future.

An increase in electricity demand from significant 
electrification of transport (light vehicles, trucking 
and air), industrial process heat conversions to 
electricity, data centres, export hydrogen production 
and New Zealand population growth provides 
the potential for increased revenues. Mercury has 
positioned itself to grow market share of generation 
in New Zealand through the development of the 
Turitea wind farm and has additional prospects in 
both wind and geothermal. We actively promote 
the electrification of transport, and will continue to 
work with industry to explore fossil fuel substitution, 
business models for green hydrogen and renewable 
electricity supply to data centres.

Any increase in regulation and/or actions that do 
not consider management of New Zealand’s energy 
trilemma as a whole, (energy security, energy equity, 
and environmental sustainability of energy systems) 
could lead to negative impacts for New Zealand, our 
sector and our customers. 

Regulatory constraints may be placed on carbon 
or electricity pricing, impacting on both markets 
and posing both reputational and financial risks 
for Mercury. To manage this, we remain engaged 
with the regulatory processes around the emissions 
trading scheme and forestry rules.

We will continue to maintain engagement with 
government, regulators and media commentators 
and will maintain/lead the narrative on the positive 
contribution renewable energy makes to New 
Zealand’s climate change ambitions. 

We will continue to make submissions on legislation, 
regulation and planning instruments relevant to 
climate change, renewable energy, carbon forestry 
and the energy trilemma to ensure the best 
outcomes for New Zealand’s low carbon future.

The physical impacts of climate change will have 
a direct impact on electricity demand. Warmer 
winters may reduce demand for heating, whilst 
hotter summers may well increase demand for 
cooling in the warmer months.

Drier summers with extended periods of drought 
could increase demand for water e.g. for irrigation. 
This has the potential to impact water availability 
in the catchment and our ability to generate. 
Scenario analysis will enable us to to understand 
these potential impacts on both energy and 
water requirements. There are both risks and 
opportunities around continued access to fuel 
(water) through increasing demand for water use 
and/or storage decreasing. Changes in demand 
due to physical changes will inevitably influence 
electricity market prices. We will closely monitor 
policy controls, statutory change and legal 
precedents that could impact our access to water. 
We will continue to engage in the relevant Resource 
Management Act (RMA) processes, monitor 
policy statements and continue to develop our 
water strategy, working with the many catchment 
stakeholders.

Physical climate impacts will arise over the long 
term due to extreme or acute weather events e.g. 
storms, droughts, increasing frequency of days with 
high temperatures. Longer-term or more chronic 
risks include increasing temperatures with impacts 
on inflows into the hydro catchment. There are 
financial risks and opportunities associated with 
these changes which may be both direct (on our 
assets and operations) and indirect (on markets and 
supply chains).
Increasing extremes of catchment inflows and high 
temperature days presents the risk of damage to 
our generation assets or impacts on our ability to 
generate. 
Our assets are capable of managing high inflow 
events and high temperature days. However, there 
remains a risk that some damage or interruption to 
operation may occur if extreme events increase in 
frequency. 
This would have a negative impact on revenues 
and/or increase operating costs. Scenario modelling 
to be undertaken in FY21 will form the basis for the 
management of climate-related risks and inform 
generation operating plans, potential changes 
required to resource consent conditions and high 
flow management plans.

TIMELINE:

S

Short

M

Medium

L

Long term

RISK RATING:

H

High

M

Medium

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MERCURY ANNUAL REPORT 2020 
 
 
METRICS 
& TARGETS.

The TCFD promotes the disclosure 
of corporate greenhouse gas 
emission footprints using a standard 
approach. Mercury publicly discloses 
a comprehensive annual emissions 
inventory report, covering all direct and 
indirect greenhouse gas emissions. 

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In FY20 we explored, in more detail, the emissions associated with 
our value chain, which includes emissions from: sold products (gas to 
dual fuel customers) and various categories of supplier e.g. IT services, 
general maintenance, staff travel and accommodation, waste to landfill. 
Developing our understanding of our broader emissions footprint, 
together with outcomes of scenario modelling, is an important step 
when considering the appropriateness and type of any future emissions 
reduction target(s). 

OUR NET CARBON POSITION

As an active participant in New Zealand’s 
Emissions Trading Scheme (ETS) Mercury 
has invested in carbon forests since 2010. 
We have ten contracts in place that support 
different New Zealand forestry projects and 
enable us to meet our obligations under the 
ETS. At the end of FY20, after meeting our 
ETS compliance obligations, we had a surplus 
of just over one million tonnes.

GHG EMISSIONS BY SCOPE FY15 TO FY20

EMISSIONS INTENSITY OF GENERATION FY15 TO FY20

NET CARBON POSITION FY15 TO FY20

Scope 1

Scope 2

Scope 3

Direct emissions – predominantly 
fugitive emissions from 
geothermal facilities.

Indirect emissions - from 
electricity used at generation 
sites and in offices.

Other indirect emissions – 83% 
downstream from gas sales to 
dual fuel customers.

e
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O
C
s
e
n
n
o
T

600,000

500,000

400,000

300,000

200,000

100,000

0

80

70

60

50

40

30

20

10

0

h
W
M
/
e
2
O
C
g
k

y
t
i
s
n
e
t
n

i

s
n
o
i
s
s
i
m
E

8,000

7,000

6,000

5,000

4,000

3,000

2,000

1,000

0

)
h
W
G
(
n
o
i
t
a
r
e
n
e
G

e
2
O
C
s
e
n
n
o
T

1,200,000

1,000,000

800,000

600,000

400,000

200,000

0

FY15

FY16

FY17

FY18

FY19

FY20

FY15

FY16

FY17

FY18

FY19

FY20

FY15

FY16

FY17

FY18

FY19

FY20

Scope 1

Scope 2

Scope 3

Generation GWh

Emissions Intensity kg CO2e/MWh

Emissions from generation and gas sales

Net carbon position (tonnes)

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
 
 
 
 
4. PEOPLE.

OUR FOCUS

Mercury’s People pillar focus areas are High Performance Teams, 
Safety and Wellbeing, and Capability and Development. To bring this 
to life, as an example that touches on all focus areas, here we tell 
the story of Andrew Marsh and his growth while contributing to our 
geothermal well drilling programme. 

LIVING THE 
LEADERSHIP JOURNEY.

Taking ownership, developing capability and 
leading his team to safely deliver important 
business outcomes: Well Services Manager 
Andrew Marsh lives and breathes Mercury’s 
people goals as he builds his career.

“I joined what was then Mighty River Power 
as an engineer in 2010, during an exciting 
time of growth for geothermal generation,” 
says Andrew. “Kawerau and Ngā Awa Pūrua 
geothermal stations had recently been 
completed and Ngātamariki was under 
development. It was an ideal time to cut my 
teeth in the renewable energy space, and an 
exciting time to start my Mercury career.”

Andrew took on his first formal management 
role in 2012, recruiting two engineers to lead 
a Process Engineering team. “I jumped at 
the chance, because it started me on my 
leadership path at Mercury and in particular 
taught me what a team needs from its leader 
in order to be successful,” says Andrew.

“During this stretch of my career I also keyed 
in to the importance of understanding 
people’s needs and providing a sense of 
purpose and direction.”

In 2018 Andrew was appointed Well Services 
Manager. Geothermal Technical Resources 
Manager, Wu Khoo, says: “Andrew’s 

appointment to Well Services Manager was 
a deliberate move by us to help develop his 
commercial knowledge and his approach to 
risk-taking and decision making.” 

These were growth areas identified at regular 
development meetings and the feedback 
resonated with Andrew. “Decision making 
in the geothermal sphere is complex and 
compressed, because you can be spending 
at the rate of $200,000-$300,000 a day,” 
Andrew says. “It’s imperative that you are able 
to make crucial decisions both quickly, and as 
a team.” 

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MERCURY ANNUAL REPORT 2020 
 
 
PILLAR  
SUMMARY.

PILLAR STORY FOCUS AREAS

•  Capability & development

•  Safety & wellbeing

•  High Performance Teams

STRATEGIC GOALS: MID-TERM
We have enabled our people to understand 
and respond to the changing nature of 
work in order to deliver the highest levels 
of productivity and performance and are 
viewed as an attractive place to work.

We are a Zero Harm organisation that 
continues to focus on the physical and 
mental wellbeing of all the people who are 
important to our business.

STRATEGIC GOALS: LONG-TERM
A Zero Harm organisation that has enabled 
our people to adapt to the changing nature 
of work to deliver the highest levels of 
performance and productivity.

KEY RISKS

•  An incident occurring that causes a fatality 
or serious injury to our staff, a contractor, a 
customer or the public. 

•  Failing to develop and retain our growing 

talent.

91%

OF PEOPLE AGREE THAT MERCURY IS 
COMMITTED TO THE HEALTH & SAFETY 
OF ITS PEOPLE.

70% 

OF PEOPLE SAY THAT THEIR MANAGER, 
OR SOMEONE IN MANAGEMENT, HAS 
SHOWN A GENUINE INTEREST IN THEIR 
CAREER ASPIRATIONS.

87% 

OF PEOPLE SAY THAT WITHIN THEIR 
TEAM, THEY ASK FOR HELP WHEN 
THEY NEED IT AND LEARN FROM 
EACH OTHER.

Andrew hadn’t been in the Well Services 
Manager role long before his development 
areas were tested. “I was assigned with 
leading a drilling project,” Andrew says. 
“This turned out to be an intense period of 
growth for me, because as well as having 
more responsibility, I had to accelerate the 
establishment of bench-strengths by building 
the team up from two to eight.”

As well as a team reporting directly to him, 
he had a team of specialists to work with 
in other areas of the business, along with a 
contracting team on the field. Fortunately 
for Andrew, he was able to draw on our ‘High 
Performance Teams’ (HPT) framework. 

Introduced to Mercury in 2018, the HPT 
framework helps to build more effective 

teams by addressing team composition, 
dynamics and environment. By helping 
teams to build trust, embrace conflict and be 
aligned on their purpose and priorities, HPT 
tools support teams to work better together 
to deliver on team goals and our mission and 
purpose. 

“The pressure on the project to deliver 
while managing large budgets and short 
timeframes was where the HPT framework 
really showed its strengths,” says Andrew. 
“With a drilling project on the horizon, it 
was clear that we needed to adjust to be 
more multi-disciplinary, utilising the input 
of geology, reservoir and drilling engineering 
experts as well as drawing on the diversity of 
thought and experience in the wider team.” 

Andrew drew on the guidance of one of our 
HPT coaches, Communications Manager Katy 
Scoullar. HPT coaches are trained internally 
as both a development opportunity for those 
involved and as a way to help teams use the 
HPT framework to achieve better results. 

“We settled on three HPT sessions to draw 
out existing team strengths and qualities 
and set basic ground rules,” says Katy. “The 
first session explored communication styles 
and delved into what each team member 
could bring to the table. The second let team 
members get to know each other better and 
set basic meeting ground rules to ensure the 
team stayed on track.

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MERCURY ANNUAL REPORT 2020 
 
 
CREATING vALUE 
THROUGH OUR 
PEOPLE.

COMMERCIAL

CUSTOMER

PEOPLE

PARTNERSHIPS

KAITIAKITANGA

Andrew’s professional journey with Mercury 
integrates thinking and delivers shared value 
across other Mercury pillars. For example:

•  PARTNERSHIPS – working closely 
and collaboratively with contractors 
and Iwi partners supports our growing 
understanding of managing geothermal 
resources (Industry & research).

•  KAITIAKITANGA – being aware of our 
responsibilities to the environment and 
to others helps secure the long-term 
sustainability (Natural resources) and 
viability of our geothermal assets (Assets).

•  COMMERCIAL – success through the 

project team’s operational excellence focus 
contributes to our overall geothermal 
generation of 2,600GWh per annum 
(Generation development).

“At the third, Andrew presented to the team, 
outlining his expectations and preparing 
them for potential high-pressure situations 
involving sometimes multi-million-dollar 
decisions. We workshopped scenarios which 
served to clarify expectations of the team and 
their various roles.” 

“Adopting HPT principles led us to discover 
that while individually we might not have had 
the ability to fulfil a drilling project, collectively 
we did,” says Andrew.

“HPT allows everyone to state their 
sometimes divergent positions, free of 
constraint or of fear of others’ opinions, 
leading to open and frank discussions and a 
united commitment to the best outcome. 

“This was hugely beneficial for both internal 
and external relationships, the strength of 
which tends to play out in key areas like health, 
safety and wellbeing, which is an ongoing area 
of focus for Mercury,” says Andrew. 

“Early on in the project, we experienced 
a small number of safety issues in quick 
succession – an ankle roll, then a finger break. 
It was evident we had to tackle these incidents 
proactively and the excellent relationship with 
our contractor, supported by HPT principles, 
meant we could work more effectively to find 
a solution and turn this safety blip around,” 
Andrew said.

Importantly, there was clarity around roles: the 
contractor focussed on how to run the site, 
Mercury looked after the safety framework, 
compliance and safety-in-design.

The drilling project saw the completion of two 
wells at Kawerau and a third well at Rotokawa.

Even with all the planning, there were 
challenges. Andrew and his team had to 
respond to a nearly two-week delay at 
Kawerau when a failed drill string became 
stuck two kilometres down the well. 
Operations ultimately had to cease short  
of the final depth target.

Overall the drilling project had highly 
successful outcomes, with the completion of 
the wells exceeding capacity expectations. 
And while one well went over budget due to 
the drill string issue, it helped delineate the 
southern area of the Kawerau steamfield, 
providing critical information for future 
planning.

“I feel fortunate to be having my leadership 
journey at Mercury, supported by those 
around me and by frameworks like HPT. I 
don’t feel I would have had such useful tools 
at my disposal or had my development areas 
identified and addressed so head-on by any 
other employer,” Andrew says.

CLICK HERE to find out how 
geothermal energy is made.

OUR SKILLS PLEdGE

In 2019, the Prime Minister’s Business Advisory Council set  
a challenge to organisations to sign up for the Aotearoa  
New Zealand Skills Pledge. We have committed to the pledge 
and we aim to offer our people the opportunity to be trained 
and to learn new skills needed to make their contribution to 
the future of work.

We pledge to:

• 

• 

publicly disclose our investment in on-the-job training 
and reskilling hours annually 

double the number of on-the-job training and reskilling 
hours we provide by 2025

Our focus during FY20 has been on increasing training hours 
in development programmes and e.learning, particularly 
targeting capabilities required to build a future-ready 
sustainable workforce.

TRAINING AREA

TRAINING HOURS  
IN Fy19

TRAINING HOURS  
IN Fy20

Capability development 4,205

Health & safety

5,920

Business compliance

861

4,318

6,919

1,196

LOOKING FORWARd

We recognise that we are in an environment of 
change and uncertainty that will affect many of 
our people directly or indirectly. Lessons from the 
COVID-19 lockdown will guide the evolution of our 
approach to flexible working arrangements and 
accelerate our digital capability. Wellbeing and 
safety is an area we will continue to focus on, with 
face-to-face and online training for all our people 
offered on an ongoing basis. We will continue to 
leverage our High Performance Teams framework 
and Our Attitudes (Share & connect, Commit 
& own it, Curious & original), to further improve 
cross-functional collaboration and continue to lift 
engagement. 

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5. COMMERCIAL.

OUR FOCUS

Mercury’s Commercial Pillar focus areas are Operational Excellence, Generation 
Development and Sustainable Growth. To bring this to life, we tell the story here 
of the work underway to build New Zealand’s largest wind farm, Turitea.

DEALING WITH  
SHIFTING WINDS.

Our wind farm at Turitea passed some key 
milestones this year. Highlights we celebrated 
included the ground-breaking and start of 
construction in October, and November’s 
announcement of the decision to extend the 
initial 33 turbines to the full 60-turbine build 
to create what will be New Zealand’s largest 
wind farm. 

For a long-term investment, the possibility 
for change is baked into the business case, 
but it’s fair to say that the second half of 
the financial year saw unprecedented and 
unforeseen impacts related to the COVID-19 
pandemic. Responding to the impact of this 
pandemic has tested this construction project 
and shown strengths within the team and 
across Mercury.

Dennis Radich, Generation Development 
Manager and Project Director of the Turitea 
development, is well-equipped to work with 
ambiguity.

When Dennis joined Mercury in 2009, the 
company was building geothermal power 
stations and his remit was to advance the 
next layer of growth for the company. At 
that time the site at Turitea was undergoing 
a complex and protracted Board of Inquiry 
consenting process, and it was anticipated 
that, once this was resolved, we would build a 
wind farm there. 

But by the time the consents for the Turitea 
wind farm were granted, the Global Financial 
Crisis had flattened market demand. “All 
growth expectations had tapered off,” 

remembers Dennis. The company hit pause 
on building new generation and waited for the 
economics to improve.

Years passed. In mid-2017 the team identified 
improving economics in wind generation, 
revisited the analysis around building a wind 
farm and ran a tender process before taking 
a business case to our Board in November 
2018. 

The Board’s decision to approve the project, 
says Dennis, “made a huge difference in the 
outlook for the company and for me.

“We had identified a real opportunity to make 
a meaningful difference to Mercury’s growth 
path. At a personal level my role had come 
full circle back to Turitea as my number one 

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MERCURY ANNUAL REPORT 2020 
 
 
PILLAR  
SUMMARY.

PILLAR STORY FOCUS AREA

•  Generation development

OTHER FOCUS AREAS

•  Operational excellence

•  Sustainable growth

STRATEGIC GOALS: MID-TERM
We deliver EBITDAF growth and maintain 
an appropriate average for stay-in-business 
CAPEX investment, while operating within 
agreed risk parameters.

STRATEGIC GOALS: LONG-TERM
Leading our sector in terms of  
financial performance and shareholder 
returns, earning at least our cost of capital.

KEY RISKS

•  An incident occurring that causes a 

fatality or serious injury to our staff, a 
contractor, a customer or the public. 

•  Supply chain disruptions that delay 
deliveries and impact construction 
timelines.

priority, although my original remit, which 
focussed on the commercial side, had now 
expanded significantly to include leading the 
physical infrastructure build.”

The first 33 turbines were announced in 
March 2019, followed quickly with a further 
announcement of the remaining 27 turbines 
in November that year. 

“First-mover advantage is important, and we 
ensured we were in a position to move quickly 
enough to announce that we were going 
ahead with the full 60 turbines.

“The outlook for the wholesale market had 
lifted dramatically and that supported more 
investment.” 

The decision to proceed with the full 
60-turbine wind farm was based on 
comprehensive analysis of the market, the 
cost to build, and other variables. 

“The most measurable part is cost – being 
able to model capital cost and operating 
cost of the wind farm,” Dennis explains. 
“For a renewable asset, with very close to 
free fuel, the lion’s share of the outgoing is 
in the capital cost at the start. You need to 
be confident that your 25-year forecasts 
are appropriate to justify that upfront 
commitment."

Unknown risks, such as market demand 
and future electricity prices, were modelled. 
Uncertainty around the future of the 
aluminium smelter at Tiwai Point, that uses 
around 13% of all electricity produced in this 
country, was also considered as part of the 
business case but ultimately, “in the context 
of a 25-year investment decision, Tiwai is a 
relatively short-term factor,” says Dennis. 

“Renewable energy projects are about the 
very long term, and we believe the business 
case is sound for the completion of the 
Turitea wind farm to support New Zealand 
demand well into the future.”

As construction takes place, some flexibility is 
necessary.

“Being prepared to change plans is a key 
part of managing real life in a large, complex 
project. Limitations on port capacity at Napier 
at the time, and a couple of pinch points 
on the transport route for the 55m turbine 
blades, meant we went to the other side of 
the North Island to Port Taranaki for blade 
import.”

This required a new route up the range at 
Turitea that wasn’t previously contemplated.

What nobody could anticipate was COVID-19 
and its profound impact on individuals, 
communities and businesses. Major 
construction projects like the Turitea wind 
farm did not escape its impact.

“From January to February there was an 
evolving situation internationally,” says Dennis.

“We were aware that the coronavirus might 
at least disrupt the supply chain with key 
components coming from China, Italy and 
Indonesia. Then we saw the global spread 
of the threat, something that none of us 
had seen before or could reasonably have 
expected.”

During the Alert Level 4 lockdown, Mercury 
and its contractors suspended construction 
work as required by the Government’s 
COVID-19 directions. When the country 
returned to Alert Level 3, the site reopened. 

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60 

TURBINE WIND FARM 

*
$465M

INFRASTRUCTURE 
PROJECT

* excludes capitalised interest

MERCURY ANNUAL REPORT 2020 
 
 
 
CREATING VALUE 
THROUGH 
COMMERCIAL.

COMMERCIAL

CUSTOMER

PEOPLE

PARTNERSHIPS

KAITIAKITANGA

Our Turitea wind farm project integrates 
thinking and delivers shared value across 
other Mercury pillars. For example:

•  PEOPLE – this large project embedded 

high standards of Safety & wellbeing, and 
benefitted from Capability & development 
embraced by team members.

•  PARTNERSHIPS – relationships with 

Vestas, the world’s largest supplier of wind 
turbines, to deliver and maintain the wind 
farm; and Palmerston North City Council to 
ensure the safe delivery of the project within 
the council-owned Turitea Reserve.

•  KAITIAKITANGA – close engagement with 
tangata whenua to ensure the development 
activities are undertaken in accordance with 
local tikanga.

WHEN THE WINDS OF 
CHANGE BLOW, SOME 
PEOPLE BUILD WALLS, 
OTHERS BUILD WIND 
MILLS.

“Getting the opportunity to remobilise was 
extremely welcome but demobilisation and 
remobilisation is not costless and in a very 
simple sense it extends the timeline of the 
project. 

“This is a strong reminder that despite the 
best laid plans, there are plenty of things 
outside your control. 

“COVID-19 remains an ongoing situation we’re 
adapting to, but what we do know is that 
Turitea will be built. It will be a great asset for 
Mercury and for New Zealand’s renewable 
generation,” says Dennis.

And the team have their sights set beyond 
the Turitea wind farm. 

“We never intended to stop with just the 
Turitea wind farm,” says Dennis. “This wind 
farm is the first important step in building 
Mercury’s wind generation portfolio. The 
infrastructure that we’re putting in place 
around transmission and grid connection for 
this wind farm is sized to also facilitate the 
Puketoi wind farm, further to the east. 

“We have laid the groundwork to build 
another wind farm at Puketoi at the 
appropriate commercially motivated time and 
it has an even better quality wind resource 
than Turitea.”

There is an ancient Chinese proverb: “When 
the winds of change blow, some people build 
walls, others build wind mills”.

CLICK HERE to watch how we plan to build 
the largest wind farm in New Zealand.

LOOKING FORWARD

Operational efficiency and effectiveness will be 
a key focus, recognising a challenging economic 
environment, likely volatility in wholesale markets 
and competitor repositioning ahead of the 
signalled closure of the Tiwai Point aluminium 
smelter. An internal team has been established to 
consider efficiency initiatives.
Growth will be delivered by bringing generation to 
the grid from our Turitea wind farm. Completion 
of the 33 northern turbines is expected in the final 
quarter of FY21, and the 27 southern turbines in 
the second quarter of FY22.
Our capital management approach ensures we 
retain the flexibility to be able to take advantage of 
opportunities that may present themselves.

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MERCURY ANNUAL REPORT 2020 
 
 
ENERGY FREEDOM  
IN NUMBERS.

This section explains how our integrated thinking, 
our decisions and our actions play out in financial 
results. Here we provide commentary on our 
financial performance for the year to the end of 
June 2020 compared with prior years, as well as 
our auditor’s report and our financial statements. 
This year, we have amended our segment reporting 
so that you can more clearly see the financial 
dynamics of our generation operations as distinct 
from our retail energy sales operations.

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MERCURY ANNUAL REPORT 2020 
 
 
 
FINANCIAL 
COMMENTARY.

Mercury produced a solid performance in FY20 in the face of prolonged 
drought conditions and a national lockdown due to COVID-19. While EBITDAF 
for FY20 is down $12 million, when normalised for the sale of the company’s 
metering business in February 2019, it is $8 million favourable. 

The impacts of COVID-19 on Mercury so far were modest compared to 
many businesses, as we continued operating as an essential service with all 
generation activity continuing during the nationwide lockdown through March 
and April. While office-based staff were required to work from home during 
lockdown, the company’s investment in its digital platform meant this could 
be undertaken with minimal impact to customers and staff. Construction at 
our Turitea wind farm was temporarily halted, however this had resumed by 
early May.

Similar to the prior year, weather across the Waikato catchment was acutely 
dry from September, with hydro generation down approximately 300GWh 
against our long-term average. Prudent portfolio management during the 
period saw Lake Taupō levels rise to nearly full at the start of summer ahead 
of the normally drier summer/autumn months and saw Lake Taupō close the 
year almost 100GWh below its long-term average for the time of year. 

Geothermal generation was slightly down at 2,615GWh for the year, off the 
back of two-yearly maintenance outages at both Kawerau and Ngā Awa 
Pūrua. A three-well drilling campaign was also completed during the year.

Our focus on customer value and loyalty, as opposed to customer numbers, 
saw both customer acquisitions and losses fall. Average mass market yields 
increased $4/MWh or 3.2% over the prior period. However, elevated spot 
prices during FY20 pressured margins, which remained challenged across all 
segments. Repricing of the commercial and industrial segment saw average 
yields increase by $7/MWh or 8.8% during the year.

We have continued our disciplined and focussed approach to costs. Operating 
costs in FY20 at $190m were in line with FY19 normalised levels as signalled. 
We also committed to building the southern section of our Turitea wind farm, 
taking total committed spend for the project to $465 million. The northern 
section of the wind farm is expected to be completed in autumn FY21, with 
the southern section following suit in spring FY22.

OPERATING COSTS
The Group held its operating costs broadly flat 
for a seventh year in a row, after normalising 
for International Financial Reporting Standards 
(IFRS) changes and the sale of Metrix. This 
continues to evidence the Group’s disciplined 
and focussed approach to its core activities.

$494M

OPERATING 
EARNINGS 
(EBITDAF)

ENERGY MARGIN
Energy Margin of $652 million was down $15m 
from the previous year affected by the drought, 
resulting in 300GWh less hydro production.

Lower inflows into the Waikato catchment 
meant that good lake and portfolio 
management has been key. A strong portfolio 
performance was a consequence of good 
management of Lake Taupō levels, decisions in 
the customer portfolio to increase commercial 
and industrial contracting, not renewing the 
Farmsource contract and targeted customer 
acquisitions. Average energy yields increased 
across both mass market and commercial and 
industrial sales, up 3.2% and 8.8% respectively. 

Energy Margin

Operating  Costs

Operating  Earnings  (EBITDAF)

M
$

740

720

700

680

660

640

620

600

215

210

205

M
$

200

195

190

185

M
$

580

560

540

520

500

480

460

440

FY16

FY17

FY18

FY19

FY20

FY16

FY17

FY18

FY19

FY20

FY16

FY17

FY18

FY19

FY20

12TH

CONSECUTIVE 
YEAR OF ORDINARY 
DIVIDEND GROWTH

15.8CPS

FULL YEAR 
ORDINARY 
DIVIDEND

OTHER INCOME
Other net income for the year of $32 million 
was down $6 million on the previous year as 
the group had its first full year without Metrix, 
its metering business that was sold in February 
2019, which contributed $15 million in FY19. 
Other income now includes equity accounted 
income from the group’s investments in 
associates (Tilt Renewables and Mokai, via 
Tuaropaki Power Company), which contributed 
$18 million in FY20, an increase of $17 million 
over FY19. These have been included because 
earnings from associates is forecast to become 
more material through time.

OPERATING EARNINGS  
(EBITDAF)
FY20 operating earnings were solid given drier 
hydro conditions and the sale of Metrix. The 
company’s EBITDAF of $494 million fell $12 
million from the previous year, off the back of 
approximately 300GWh of lower hydrology 
and the sale of Metrix in February 2019.

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MERCURY ANNUAL REPORT 2020 
 
 
 
PROFIT FOR THE YEAR
Mercury's profit for the year of $207 million was lower than the previous year’s record of $357 million, 
which benefitted by $177 million from the sale of the company’s smart-metering business, Metrix. 
Normalising for this gain on sale, the group’s net profit after tax was up $27 million, primarily due to 
lower interest and tax charges more than offsetting the impacts of lower hydrology.

Distributions

Capital Expenditure

Underlying Earnings After Tax

e
r
a
h
s

r
e
p

s
t
n
e
C

25

20

15

10

5

0

300

250

200

M
$

150

100

50

0

M
$

200

150

100

50

0

FY16

FY17

FY18

FY19

FY20

FY16

FY17

FY18

FY19

FY20

FY16

FY17

FY18

FY19

FY20

Interim

Final

Special

Buyback

Stay-in-business

Growth

$207M

PROFIT

$164M

UNDERLYING 
EARNINGS  
AFTER TAX

$114M

OF STAY-IN-
BUSINESS CAPEX

UNDERLYING EARNINGS 
Underlying earnings is provided to enable our 
stakeholders to make an assessment and 
comparison of earnings after removing one-off 
and/or infrequently occurring events (exceeding 
$10 million of profit before tax), impairments 
and any changes in the fair value of derivative 
financial instruments.

Underlying earnings after tax increased 
by $3 million for the year, reflecting the 
company’s continued focus on careful portfolio 
management, customer value and a disciplined 
approach to cost.

CAPITAL STRUCTURE  
AND DIVIDENDS
Mercury's gearing level of 2.0 times debt/
EBITDAF is up marginally on the previous year 
due to the capital expenditure in relation to 
construction of the Turitea wind farm, with $184 
million advanced to date. The gearing ratio 
however remains at the strong end of Mercury’s 
target credit range of 2.0x to 3.0x debt/EBITDAF 
to support our S&P Global credit rating of BBB+.

Mercury holds 39 million shares as treasury stock 
and has available debt headroom of $525 million 
and cash and cash equivalents of $79 million. 
This provides balance sheet flexibility for liquidity 
and growth in relation to the development 
of the Turitea wind farm and other potential 
opportunities.

In line with our dividend policy, targeting a 
pay-out ratio of 70% to 85% of Free Cash 
Flow on average over time, a fully imputed 
ordinary dividend of 9.4 cents per share (CPS) 
final dividend has been declared. This brings 
the full-year ordinary dividend to 15.8 CPS, up 
from 15.5 CPS, or 2%, in 2019, marking our 12th 
consecutive year of ordinary dividend growth.

CASH FLOWS FROM OPERATING ACTIVITIES
Net cash provided by operating activities represents cash flows from the 
sale of electricity and gas, along with the costs associated with its sale and 
the cash costs of interest and taxes.

BALANCE SHEET
Total assets of the company increased by $401 million, primarily due to a 
$296 million upward revaluation of Mercury’s generation assets, due to the 
assessed cost of capital falling, and $184 million invested to date in the 
company’s Turitea wind farm. Turitea construction also contributed to an 
increase in net debt, which was $53 million higher compared to last year.

The company invested $279 million in capital expenditure (CAPEX) during 
the year, comprising $114m stay-in-business (SIB) CAPEX and $165 million 
of growth CAPEX, the majority of which was in relation to Turitea.

The major hydro refurbishments were completed at Whakamaru in March 
2020 and Aratiatia in July 2020 and preliminary refurbishment works at 
our Karāpiro station continued. The company also completed a three-well 
drilling campaign this year.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
 
FINANCIAL TRACK RECORD.

FINANCIAL PERFORMANCE TRENDS

For the year ended 30 June1 ($ million)

2020

2019

2018

2017

2016

For the year ended 30 June1 ($ million)

2020

2019

2018

2017

2016

Income statement 

Energy margin

EBITDAF

Net profit for the year

Balance sheet

Total shareholders’ equity

Total assets 

Total liabilities

Cash flow

Operating cash flow

Investing cash flow

Financing cash flow

Capital expenditure

Total capital expenditure

Growth capital expenditure

Stay-in-business capital expenditure

Other financial measures

Underlying earnings after tax

Free Cash Flow

Ordinary and special declared dividends

Ordinary dividends per share (cents)

Special dividends per share (cents)

Basic and diluted earnings per share (cents)

Net debt

Gearing (net debt/net debt + equity, %)
Debt/EBITDAF (x)2

652

494

207

667

506

357

730

566

234

698

523

184

660

493

160

Operational measures

Total recordable injury frequency rate (TRIFR)3
Sales to customers (FPVV, GWh)

Electricity customers (‘000)

Electricity generation (GWh)

1.26

4,361

348

6,327

0.72

4,500

373

6,703

0.87

4,477

388

7,511

1.05

4,606

392

7,310

0.74

4,397

376

6,462

3,739

6,885

3,146

3,537

6,484

2,947

3,305

6,106

2,801

3,308

5,997

2,689

3,315

6,085

2,770

Financial results for the periods ended 30 June 2017 and earlier have not been restated for new IFRS standards.

1. 
2.  Adjusted for S&P treatment of subordinated debt issued in FY2015.
3.  Per 200,000 hours; includes on-site employees and contractors.

356

(198)

(173)

361

63

(335)

370

(254)

(141)

380

(98)

(298)

283

(40)

(228)

279

165

114

164

242

215

15.8

–

15.21

1,149

23.5

2.0

115

26

89

161

272

211

15.5

–

26.23

1,096

23.7

1.9

118

6

112

198

258

207

15.1

–

17.00

1,264

27.7

1.9

116

2

114

176

266

270

14.6

5.0

13.37

1,038

23.9

1.8

72

13

59

152

224

252

14.3

4.0

11.6

1,068

24.4

2.0

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MERCURY ANNUAL REPORT 2020 
 
 
 
INDEPENDENT AUDITOR’S REPORT.

TO THE SHAREHOLDERS OF MERCURY NZ LIMITED

REPORT ON THE AUDIT OF THE FINANCIAL STATEMENTS  
FOR THE YEAR ENDED 30 JUNE 2020

The Auditor-General is the auditor of Mercury NZ Limited (‘the entity’) and its subsidiaries and other controlled entities (collectively 
referred to as ‘the Group’). The Auditor-General has appointed me, Lloyd Bunyan, using the staff and resources of Ernst & Young, 
to carry out the audit of the consolidated financial statements of the Group on his behalf. 

OPINION
We have audited the consolidated financial statements of the 
Group on pages 49 to 69 of the Annual Report, that comprise 
the consolidated balance sheet as at 30 June 2020, the 
consolidated income statement, consolidated statement of 
comprehensive income, consolidated statement of changes 
in equity and the consolidated cash flow statement for the 
year then ended on that date, and notes to the consolidated 
financial statements that include accounting policies and 
other explanatory information.

In our opinion, the consolidated financial statements of the 
Group present fairly, in all material respects, the consolidated 
financial position of the Group as at 30 June 2020, and 
its consolidated financial performance and cash flows 
for the year then ended in accordance with New Zealand 
Equivalents to International Financial Reporting Standards and 
International Financial Reporting Standards. 

BASIS FOR OPINION
We carried out our audit in accordance with the Auditor-
General’s Auditing Standards, which incorporate the Professional 
and Ethical Standards and the International Standards on 
Auditing (New Zealand) issued by the New Zealand Auditing and 
Assurance Standards Board. Our responsibilities under those 
standards are further described in the Auditor’s Responsibilities 
for the Audit of the Financial Statements section of our report. 

We believe that the audit evidence we have obtained is sufficient 
and appropriate to provide a basis for our opinion. 

We are independent of the Group in accordance with the 
Auditor-General’s Auditing Standards, which incorporate 
Professional and Ethical Standard 1 International Code of 
Ethics for Assurance Practitioners (including International 
Independence Standards) (New Zealand) issued by the New 
Zealand Auditing and Assurance Standards Board, and we have 
fulfilled our other ethical responsibilities in accordance with these 
requirements. 

In addition to the audit, we have carried out assignments 
including a review of the Group’s consolidated financial 
statements for the six months ended 31 December 2019, 
agreed upon procedure engagements, a limited assurance 
engagement, provision of remuneration market survey data and 
tax related services in the United States of America, all of which 
are compatible with independence requirements. These services 
have not impaired our independence as auditor of the Group.

Partners and employees of our firm may deal with the Group on 
normal terms within the ordinary course of trading activities of 
the business of the Group. Other than the audit and the other 
assignments described above, we have no relationship with, or 
interests in, the Group. 

KEY AUDIT MATTERS
Key audit matters are those matters that, in our professional 
judgement, were of most significance in our audit of the 
consolidated financial statements of the current period. These 
matters were addressed in the context of our audit of the 
consolidated financial statements as a whole, and in forming 
our opinion thereon, and we do not provide a separate opinion 
on these matters.

We have fulfilled the responsibilities described in the Auditor’s 
responsibilities for the audit of the financial statements 
section of the audit report, including in relation to these 
matters. Accordingly, our audit included the performance of 
procedures designed to respond to our assessment of the 
risks of material misstatement of the consolidated financial 
statements. The results of our audit procedures, including 
the procedures performed to address the matters below, 
provide the basis for our audit opinion on the accompanying 
consolidated financial statements.

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MERCURY ANNUAL REPORT 2020 
 
 
 
VALUATION OF GENERATION ASSETS

VALUATION OF NON-STANDARD ELECTRICITY PRICE DERIVATIVE FINANCIAL INSTRUMENTS

Why significant

How our audit addressed the key audit matter

Why significant

How our audit addressed the key audit matter

The Group’s activities expose it to certain risks which are 
managed using derivative financial instruments. At 30 
June 2020, the fair value of derivative assets total $222 
million and derivative liabilities total $254 million as set 
out in note 14 of the consolidated financial statements.

These balances include certain electricity price derivatives 
for which the valuation inputs are not readily observable 
in active primary or secondary markets and require the 
use of more complex valuation assumptions including the 
Group’s internal wholesale electricity price path forecast. 
We refer to these derivatives as Non-Standard Derivatives 
which are included within the amounts disclosed in note 
14 of the consolidated financial statements.

Significant assumptions used in the valuation of Non-
Standard Derivatives are inherently subjective and in times 
of economic uncertainty the degree of subjectivity is 
higher than it might otherwise be, including relating to the 
anticipated electricity price path.

In obtaining sufficient appropriate audit evidence we:

•  involved our valuation specialists to assess the models 
used to estimate the fair value of the Non-Standard 
derivatives. Our valuation specialists:

•  evaluated the appropriateness of the valuation 

methodologies; and

•  compared the Group’s anticipated wholesale 

electricity price path to other price path 
estimates obtained in performing the 
Generation Asset procedures detailed above.

•  together with our internal valuation specialists, 

challenged key assumptions and inputs. This included 
assessing the impact of the COVID-19 pandemic on the 
electricity price path applied.

•  agreed underlying data to the contract terms on a 

sample basis.

•  assessed the adequacy of the related financial 
statement disclosures as described in note 14.

In obtaining sufficient appropriate audit evidence we:

•  met with the Group’s external valuation specialist 

to understand the valuation methods adopted and 
assessed the significant inputs to the model used to 
estimate the fair value of the generation assets.
•  compared forecast generation volumes to historical 

generation volumes.

•  involved our own valuation specialists to:

•  consider the process used to determination 
of the wholesale electricity price path by the 
Group’s external valuation specialist;

•  assess the appropriateness of the discount rate; 

and

•  consider the Group’s external valuation 
specialist’s assessment of the impact of 
COVID-19 on key assumptions including the 
electricity price path and discount rate applied.
•  assessed management’s treatment of the announced 
Tiwai closure as a non-adjusting post balance date 
event;

•   assessed the professional competence and objectivity 

of the Group’s external valuation specialist;

•  assessed the valuation adjustments were made in 
accordance with the Group’s accounting policy; and

•  assessed the adequacy of the related financial 

statement disclosures in notes 7 and 19.

Generation assets were revalued to $5,575 million at  
30 June 2020 as set out in note 7 of the consolidated 
financial statements. These are significant because the 
generation assets represent approximately 81% of the 
Group’s total assets.

The Group engages an external party to estimate the fair 
value of generation assets using a discounted cash flow 
model. The most significant inputs used to calculate the 
fair value of the generation assets include the wholesale 
electricity price path, generation volumes, and the discount 
rate as described in note 7 of the consolidated financial 
statements.

The New Zealand economy as a whole has been, and is likely 
to continue to be, significantly impacted by the restrictions 
and economic uncertainty resulting from the COVID-19 
pandemic. Note 1 explains the impact of the COVID 19 
pandemic on the Group. Significant assumptions used in the 
valuation of generation assets are inherently subjective and 
in times of economic uncertainty the degree of subjectivity 
is higher than it might otherwise be. The Group’s valuation 
specialist considered the impacts of COVID-19 within their 
valuation, particularly as it related to the electricity price path 
and discount rate assumptions.

In addition, note 7 states that the fair value of generation 
assets has been calculated assuming the ongoing operation 
of New Zealand Aluminium Smelters Limited Tiwai Point 
aluminium smelter (“Tiwai”), which was the expectation 
at 30 June 2020. On 9 July 2020 the owners of Tiwai 
announced its intention to close Tiwai which is expected to 
be completed in August 2021. As described in note 19 the 
Group treated this announcement as a post balance date 
event and did not make any adjustment to the fair value of 
the generation assets calculated as at 30 June 2020.

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MERCURY ANNUAL REPORT 2020 
 
 
 
INFORMATION OTHER THAN IN THE 
FINANCIAL STATEMENTS AND AUDITOR’S 
REPORT
The Board of Directors is responsible on behalf of the entity for 
the Annual Report, which includes information other than the 
consolidated financial statements and auditor’s report.

Our opinion on the consolidated financial statements does not 
cover the other information and we do not express any form of 
assurance conclusion thereon. 

In connection with our audit of the consolidated financial 
statements, our responsibility is to read the other information 
and, in doing so, consider whether the other information 
is materially inconsistent with the consolidated financial 
statements or our knowledge obtained in the audit or 
otherwise appears to be materially misstated. If, based on the 
work we have performed, we conclude that there is a material 
misstatement of this other information, we are required to 
report that fact. We have nothing to report in this regard.

DIRECTORS’ RESPONSIBILITIES FOR  
THE FINANCIAL STATEMENTS
The directors are responsible on behalf of the entity for 
the preparation and fair presentation of the consolidated 
financial statements for the Group that comply with New 
Zealand Equivalents to International Financial Reporting 
Standards and International Financial Reporting Standards. 

The directors’ responsibilities arise from the Financial 
Markets Conduct Act 2013.

The directors are also responsible for such internal control 
as they determine is necessary to enable the preparation 
of consolidated financial statements that are free from 
material misstatement, whether due to fraud or error and 
for the publication of the consolidated financial statements, 
whether in printed or electronic form.

In preparing the consolidated financial statements, 
the directors are responsible, on behalf of the entity, 
for assessing the Group’s ability to continue as a going 
concern, disclosing, as applicable, matters related to going 
concern and using the going concern basis of accounting 
unless the Directors either intend to liquidate the Group or 
to cease operations, or have no realistic alternative but to 
do so.

AUDITOR’S RESPONSIBILITIES FOR THE 
AUDIT OF THE FINANCIAL STATEMENTS
Our objectives are to obtain reasonable assurance about 
whether the consolidated financial statements as a whole 
are free from material misstatement, whether due to fraud or 
error, and to issue an auditor’s report that includes our opinion. 

Our responsibilities arise from the Public Audit Act 2001. 
Reasonable assurance is a high level of assurance, but is not 
a guarantee that an audit conducted in accordance with the 
Auditor-General’s Auditing Standards will always detect a 
material misstatement when it exists. Misstatements can arise 
from fraud or error and are considered material if, individually 
or in the aggregate, they could reasonably be expected to 
influence the economic decisions of users taken on the basis 
of these consolidated financial statements.

As part of an audit in accordance with the Auditor-General’s 
Auditing Standards, we exercise professional judgement and 
maintain professional scepticism throughout the audit. We 
also: 

•  Identify and assess the risks of material misstatement 
of the consolidated financial statements, whether due 
to fraud or error, design and perform audit procedures 
responsive to those risks, and obtain audit evidence that 
is sufficient and appropriate to provide a basis for our 
opinion. The risk of not detecting a material misstatement 
resulting from fraud is higher than for one resulting from 
error, as fraud may involve collusion, forgery, intentional 
omissions, misrepresentations, or the override of internal 
control. 

•  Obtain an understanding of internal control relevant to 
the audit in order to design audit procedures that are 
appropriate in the circumstances, but not for the purpose 
of expressing an opinion on the effectiveness of the 
Group’s internal control.

•  Evaluate the appropriateness of accounting policies used 
and the reasonableness of accounting estimates and 
related disclosures made by management. 

•  Conclude on the appropriateness of the use of the going 
concern basis of accounting by the directors and, based 
on the audit evidence obtained, whether a material 
uncertainty exists related to events or conditions that may 
cast significant doubt on the Group’s ability to continue as 
a going concern. If we conclude that a material uncertainty 
exists, we are required to draw attention in our auditor’s 

report to the related disclosures in the consolidated 
financial statements or, if such disclosures are inadequate, 
to modify our opinion. Our conclusions are based on the 
audit evidence obtained up to the date of our auditor’s 
report. However, future events or conditions may cause the 
Group to cease to continue as a going concern.

•  Evaluate the overall presentation, structure and content 
of the consolidated financial statements, including the 
disclosures, and whether the consolidated financial 
statements represent the underlying transactions and 
events in a manner that achieves fair presentation. 

•  Obtain sufficient appropriate audit evidence regarding the 
financial information of the entities or business activities 
within the Group to express an opinion on the consolidated 
financial statements. We are responsible for the direction, 
supervision and performance of the Group audit. We 
remain solely responsible for our audit opinion. 

•  We did not examine every transaction, nor do we 

guarantee complete accuracy of the consolidated financial 
statements. Also, we did not evaluate the security and 
controls over the electronic publication of the consolidated 
financial statements.

We communicate with the directors regarding, among other 
matters, the planned scope and timing of the audit and 
significant audit findings, including any significant deficiencies 
in internal control that we identify during our audit. 

We also provide the directors with a statement that 
we have complied with relevant ethical requirements 
regarding independence, and to communicate with them 
all relationships and other matters that may reasonably be 
thought to bear on our independence, and where applicable, 
actions taken to eliminate threats or safeguards applied. 

From the matters communicated with the directors, we 
determine those matters that were of most significance in 
the audit of the consolidated financial statements of the 
current period and are therefore the key audit matters. We 
describe these matters in our auditor’s report unless law or 
regulation precludes public disclosure about the matter or 
when, in extremely rare circumstances, we determine that a 
matter should not be communicated in our report because 
the adverse consequences of doing so would reasonably be 
expected to outweigh the public interest benefits of such 
communication.

LLOYD BUNYAN // ERNST & YOUNG

ON BEHALF OF THE AUDITOR-GENERAL 
AUCKLAND, NEW ZEALAND
18 AUGUST 2020

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4

MERCURY ANNUAL REPORT 2020 
 
 
 
FINANCIAL STATEMENTS.
CONSOLIDATED INCOME STATEMENT.

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME.

For the year ended 30 June 2020

For the year ended 30 June 2020

Total revenue
Total expenses 
EBITDAF1
Depreciation and amortisation
Change in the fair value of financial instruments
Gain on sale/impairments
Net interest expense
Profit before tax
Tax expense
Profit for the year attributable to owners of the parent

Note
2
2

7, 8
14

2

5

2020 $M
1,768 
(1,274)
494 
(214)
22 
–
(54)
248 
(41)
207

2019 $M
2,001 
(1,495)
506 
(204)
26 
 177 
(75)
430 
(73)
357 

Basic and diluted earnings per share (cents)

15.21

26.23

1. 

 EBITDAF: Earnings before net interest expense, tax expense, depreciation and amortisation, change in the fair value of financial instruments, 
gain on sale and impairments.

Profit for the year
Other comprehensive income
Items that will not be reclassified subsequently to profit or loss
Movement in asset revaluation reserve
Movement in cash flow hedge reserve transferred to balance sheet
Share of movements in associates’ and joint ventures’ reserves
Tax effect
Items that may be reclassified subsequently to profit or loss
Movement in cash flow hedge reserve
Movement in other reserves
Tax effect
Other comprehensive income for the year, net of taxation
Total comprehensive income for the year attributable to owners of the parent

Note

2020 $M
207

2019 $M
357

14
9

14

 285 
 6 
8
 (91)

1
–
–
209 
416

 244 
 (1) 
 (9)
 (66)

 (118)
1
 32
83
440

The accompanying notes form an integral part of these financial statements.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
 
CONSOLIDATED BALANCE SHEET.

As at 30 June 2020

SHAREHOLDERS’ EQUITY
Issued capital 
Treasury shares
Reserves
Total shareholders’ equity

ASSETS
Current assets
Cash and cash equivalents
Receivables
Contract assets
Inventories
Derivative financial instruments
Total current assets
Non-current assets
Property, plant and equipment
Intangible assets
Investments 
Investment in and advances to associates
Advances to joint operations
Receivables
Derivative financial instruments
Total non-current assets
Total assets

The accompanying notes form an integral part of these financial statements.

Note

2020 $M

2019 $M

Note

2020 $M

2019 $M

4

10
10
6
14

7
8
9
9
9
10
14

 378 
 (101)
3,462
3,739

 79 
 244 
 2 
 22 
126
 473 

5,898
 78 
– 
 328 
 6 
6
96
6,412
6,885

 378 
 (101)
 3,260
 3,537 

 94 
 256 
 3 
 23 
 50 
 426 

 5,528
 85 
 234 
 76
6
–
 129 
 6,058 
 6,484 

LIABILITIES
Current liabilities
Payables and accruals
Borrowings
Derivative financial instruments
Taxation payable
Total current liabilities
Non-current liabilities
Payables and accruals
Provisions
Derivative financial instruments
Borrowings
Deferred tax
Total non-current liabilities
Total liabilities
Net assets

10
12
14
5

10
11
14
12
5

280
 446 
 116 
 33 
 875 

 12 
 74 
 138 
 845 
1,202
2,271
3,146
3,739

 216 
 541 
 45 
 19 
 821 

 9 
 59 
 208 
 692 
 1,158 
 2,126 
 2,947
3,537

For and on behalf of the Board of Directors, who authorised the issue of the Financial Statements on 18 August 2020. 

PRUE FLACKS // CHAIR
18 August 2020

KEITH SMITH // DIRECTOR
18 August 2020

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0
5

MERCURY ANNUAL REPORT 2020 
 
 
 
CONSOLIDATED STATEMENT OF CHANGES IN EQUITY.

CONSOLIDATED CASH FLOW STATEMENT. 

For the year ended 30 June 2020

For the year ended 30 June 2020

BALANCE AS AT 1 JULY 2018
Movement in asset revaluation reserve,  
net of taxation
Movement in cash flow hedge reserve,  
net of taxation
Movements in other reserves
Recycling of fair value losses in available  
for sale reserves
Share of movements in associates’ and joint 
ventures’ reserves
Other comprehensive income
Net profit for the year
Total comprehensive income for the year
Dividend
Balance as at 30 June 2019

BALANCE AS AT 1 JULY 2019
Movement in asset revaluation reserve, net of 
taxation
Movement in cash flow hedge reserve, net of 
taxation
Share of movements in associates’ and joint 
ventures’ reserves
Other comprehensive income
Net profit for the year
Total comprehensive income for the year
Dividend
Balance as at 30 June 2020

Issued 
capital 
$M
378 

Retained 
earnings 
$M
164 

Asset 
revaluation 
reserve 
$M
2,901 

Cash flow 
hedge  
reserve 
$M
(24)

 Other  
reserves 
$M
(114)

Total  
equity 
$M
 3,305 

–

–
–

–

–
 – 
–
 – 
–
378 

–

–
 2 

 (15)

–
 (13)
357 
344 
(208)
300 

 176 

–
–

–

–
176
–
176
–
3,077 

–

 (85)
–

–

 (9)
 (94)
–
(94)
–
(118)

–

–
 (1)

 15 

–
14
–
14
–
(100)

 176 

 (85)
 1 

–

 (9)
83
357 
440
(208)
3,537

 378 

 300 

 3,077 

 (118)

 (100)

3,537

–

–

–
–
–
–
–
378 

–

–

(1)
(1)
207 
206 
 (214)
292

 205 

–

(1)
 204 
–
 204 
–
3,281

–

 (4)

–
 (4)
–
 (4)
–
(122)

–

–

10 
10
–
10
–
(90)

205

 (4)

8
209
207 
416
(214)
3,739

The accompanying notes form an integral part of these financial statements.

CASH FLOWS FROM OPERATING ACTIVITIES
Receipts from customers
Payments to suppliers and employees
Interest received
Interest paid
Taxes paid
Net cash provided by operating activities

CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of property, plant and equipment
Acquisition of intangibles
Acquisition of investment
Distributions received from and advances repaid to associates and joint ventures
Proceeds from the sale of metering business
Return/(lodgements) of prudential deposits
Net cash (used)/received in investing activities

CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from loans
Repayment of loans
(Payment)/receipt of lease (liabilities)/incentives
Dividends paid
Net cash used in financing activities
Net (decrease)/increase in cash and cash equivalents held
Cash and cash equivalents at the beginning of the year
Cash and cash equivalents at the end of the year
Cash balance comprises:
Cash balance at the end of the year

2020 $M

2019 $M

1,697
 (1,205)
 1 
 (60)
 (77)
 356 

 (195)
 (28)
–
 4 
– 
21
(198)

375
 (330) 
(4)
 (214)
 (173)
 (15)
 94
 79 

1,987
 (1,478)
 1 
 (70)
 (79)
 361 

 (93)
 (29)
 (55)
5
270
(35)
 63 

 30 
 (166)
9
 (208)
 (335)
 89 
 5 
 94 

79

94

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1
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MERCURY ANNUAL REPORT 2020 
 
 
 
 
Accounting policies and standards
No changes to accounting polices have been made during 
the year and policies have been consistently applied to all 
years presented. Certain comparatives have been restated 
where needed to conform to current year classifications and 
presentation.

The Group has decided to recognise earnings of associates 
and joint ventures within total revenue as it anticipates these 
to become more significant going forward. Prior periods have 
been restated to reflect this change.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 1. ACCOUNTING POLICIES

(1) REPORTING ENTITY
Mercury NZ Limited (“the Company”) is incorporated in New 
Zealand, registered under the Companies Act 1993, an FMC 
reporting entity under the Financial Markets Conduct Act 
2013, and is listed on the NZX Main Board and with foreign 
exempt listed status on the ASX.

The consolidated financial statements (“Group financial 
statements”) are for Mercury NZ Limited Group (“the Group”). 
The Group financial statements comprise the Company and 
its subsidiaries, including its investments in associates and 
interests in joint arrangements.

The majority shareholder of Mercury NZ Limited is Her Majesty 
the Queen in Right of New Zealand (“the Government”), 
providing it with significant potential influence over the Group. 
The liabilities of the Group are not guaranteed in any way by 
the Government or by any other shareholder.

(2) BASIS OF PREPARATION
The Group financial statements have been prepared in 
accordance with the Financial Markets Conduct Act 2013 
and in accordance with New Zealand Generally Accepted 
Accounting Practice (“NZ GAAP”). They comply with New 
Zealand equivalents to International Financial Reporting 
Standards (“NZ IFRS”) as appropriate for profit-oriented 
entities. These financial statements also comply with 
International Financial Reporting Standards (“IFRS”).

The Group financial statements are prepared on the basis of 
historical cost, with the exception of financial instruments, 
the US Private Placement and generation assets which are 
measured at fair value.

The Group financial statements have been prepared so that all 
components are stated exclusive of GST, with the exception of 
receivables and payables that include GST invoiced.

Functional and presentation currency
These financial statements are presented in New Zealand 
Dollars ($) which is the Group’s functional currency, apart 
from Mercury’s equity accounted share in Tilt Renewables 
Limited as its functional currency is the Australian dollar and 
Mighty Geothermal Power Limited and its direct subsidiaries 
as their functional currency is the United States dollar. Unless 
otherwise stated, financial information has been rounded to 
the nearest million dollars ($M).

The assets and liabilities of entities whose functional currency 
is not the New Zealand Dollar, are translated at the exchange 
rates ruling at balance date. Revenue and expense items are 
translated at the spot rate at the transaction date or a rate 
approximating that rate. Exchange differences are taken to 
the foreign currency translation reserve.

Estimates and judgements
The preparation of financial statements requires judgements 
and estimates that impact the application of policies and 
the reported amounts of assets and liabilities, income and 
expenses. Actual results may differ from these estimates.

The areas of significant estimates and judgements are as 
follows:

•  Fair value of generation plant and equipment (refer note 7)
•  Retail revenue accruals (refer note 10)
•  Provision for restoration and environmental rehabilitation 

costs (refer note 11)

•  Valuation of financial instruments (refer note 13 and note 14)
•  Incremental borrowing rates for the purpose of establishing 

lease liabilities (refer note 7)

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2
5

MERCURY ANNUAL REPORT 2020 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 1. ACCOUNTING POLICIES (CONTINUED)

COVID-19 Pandemic
On 11 March 2020 the World Health Organisation declared a global pandemic as a result of the outbreak and spread of COVID-19. 
Following this, on Wednesday 25 March 2020 the New Zealand Government raised its alert level to 4 (full lockdown) for an initial 
four-week period. The alert level was moved back down to level 3 on 27 April 2020 and then level 2 on 13 May 2020, with specific 
restrictions removed at each level. On 8 June 2020, level 1 was achieved and all remaining restrictions were lifted except for 
border controls.

The generation and retailing of electricity was deemed an essential service. Therefore Mercury was able to continue trading 
throughout all alert levels. As a result, this has limited the impact of COVID-19 during the reporting period on Mercury. It is 
acknowledged that there is significant uncertainty in how COVID-19 will impact the New Zealand economy and Mercury in the 
future.

An assessment of the impact of COVID-19 on Mercury's 30 June 2020 balance sheet is set out below. This assessment is 
effective as at 18th August 2020 and has made use of all available information at that time.

Balance Sheet Item  COVID-19 Assessment
Cash
Receivables

Contract Assets

Derivative Financial 
Instruments

Property, Plant and 
Equipment

No impact to the carrying value of cash on hand. 
Mercury has increased its allowance for impairment loss by $1 million to account for the 
effect of COVID-19 on the macroeconomic conditions which rendered the historical trend of 
receipts from customers less reliable.
Capitalised customer acquisition costs are amortised over the expected life of the customer 
relationship. There was no impact from COVID-19 on contract assets.
COVID-19 has affected interest rates, foreign exchange rates and forward electricity prices. 
Derivatives are recorded at fair value. Valuation techniques used for Level 2 and 3 derivatives 
incorporate COVID-19 impacts.
Generation assets are held at fair value. They have been revalued as at 30 June 2020 
following an independent valuation by PricewaterhouseCoopers. The fair value assessment 
of generation assets was carried out at 30 June 2020 and has incorporated impacts arising 
from COVID-19.

Provisions

Investments and 
associates

Right-of-use assets Mercury received rent relief from landlords on three properties. The relief is immaterial and 
has not impacted how these leases have been previously recognised.
All of Mercury’s investments and associates are recognised via the equity method under NZ 
IAS 28. Since all investments are in the same industry and were able to continue trading 
throughout all alert levels, no indicators of impairment exist.
The Group’s material provision is for the abandonment and subsequent restoration of 
geothermal wells. COVID-19 does not affect this provision.
Borrowings are held at amortised cost and the Group’s USPP is exchanged to NZD using the 
exchange rate at balance date. Any impact of COVID-19 on the NZD v USD exchange rate is 
reflected in the USPP carrying value.
The COVID-19 Response (Taxation and Social Assistance Urgent Measures) Act reintroduced 
tax depreciation on non-residential buildings. The $8million impact of this legislation has 
been reflected in the deferred tax balance and tax expense. No other tax relief measures 
had a material impact on Mercury’s tax balances.

Income Tax

Borrowings

Note
N/A
Note 10

Note 10

Note 13

Note 7

Note 7

Note 9

Note 11

Note 12

Note 5

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MERCURY ANNUAL REPORT 2020 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 2. SEGMENT REPORTING

IDENTIFICATION OF REPORTABLE SEGMENTS
The operating segments are identified by management based on the nature of the products and services provided. Discrete 
financial information about each of these operating segments is reported to the Chief Executive, being the chief operating 
decision-maker, on at least a monthly basis, who assesses the performance of the operating segments on a measure of EBITDAF. 
Segment EBITDAF represents earnings before net interest expense, tax expense, depreciation and amortisation, change in 
the fair value of financial instruments, gain on sale and impairments by each segment inclusive of an allocation of central 
operating revenue and costs. Operating segments are aggregated into reportable segments only if they share similar economic 
characteristics.

During the year, the company’s operating segments were changed to better reflect how the business is managed and operating 
decisions are made. Accordingly, the newly reported segments are (i) Generation/Wholesale, (ii) Retail and (iii) Other segments. 
Under this newly reported methodology, the company’s previously owned metering business Metrix – which was sold in March 
2019 – has also been separated for comparative purposes. All comparative information has been restated accordingly.

TYPES OF PRODUCTS AND SERVICES

Generation/Wholesale
The generation/wholesale market segment encompasses activity associated with the electricity production, electricity trading, 
generation development activities and the Group's share of associates earnings. It also includes revenue from the sale of electricity 
to both commercial & industrial customers and the retail segment.

Retail
The retail market segment encompasses activity associated with sale of energy, related services and products, including solar 
equipment, to mass market customers in New Zealand.

Metrix
Represents the metering services of Metrix – which was sold in March 2019 – for comparative purposes only.

Other Segments
Represents corporate support services which are not directly attributable to the generation/wholesale or retail segments.

Inter-segment
Transactions between segments represent transfer charges by generation/wholesale to retail for the purchase of electricity.

SEGMENT RESULTS

YEAR ENDED 30 JUNE 2020
Sales – electricity generation
Sales to customers and derivatives
Earnings of associates
Other revenue
Total revenue

Energy costs
Line charges
Other direct cost of sales, excluding  
third party metering
Direct costs of other revenue
Third party metering
Employee compensation and benefits
Maintenance expenses
Other expenses
Allocation or corporate overheads
Total expenses

Segment EBITDAF

Interest expense
Lease interest expense
Interest income
Interest capitalised to capital  
work in progress
Net interest expense

Generation/
Wholesale 
$M
 706 
 584 
18 
 10 
1,318

 (604)
 (77)

 (32)
–
 (3)
 (35)
 (34)
 (36)
 (11)
 (832)

486

 (8)
–
–

 4 

 (4)

Retail 
$M
–
 746 
–
 6 
 752 

 (308)
 (308)

 (9)
 (2)
 (43)
 (32)
 (6)
 (25)
 (11)
 (744)

8

–
–
–

–

–

Metrix 
$M
–
–
–
–
–

Other 
Segments 
$M
–
–
–
–
–

Inter–
segment 
$M
–
 (302)
–
–
 (302)

–
–

–
–
–
–
–
–
–
–

–

–
–
–

–

–

–
–

–
–
–
 (15)
–
 (7)
 22 
–

–

 (48)
 (3)
 1 

–

 (50)

 302 
–

–
–
–
–
–
–
–
 302 

–

–
–
–

–

–

Total 
$M
 706 
 1,028 
18
 16 
1,768

 (610)
 (385)

 (41)
 (2)
 (46)
 (82)
 (40)
 (68)
–
 (1,274)

494

 (56)
 (3)
 1 

 4 

 (54)

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MERCURY ANNUAL REPORT 2020 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

SEGMENT RESULTS (CONTINUED)

YEAR ENDED 30 JUNE 2019
Sales – electricity generation
Sales to customers and derivatives
Earnings of associates
Other revenue
Total revenue

Energy costs
Line charges
Other direct cost of sales, excluding  
third party metering
Direct costs of other revenue
Third party metering
Employee compensation and benefits
Maintenance expenses
Other expenses
Allocation or corporate overheads
Total expenses

Segment EBITDAF

Interest expense
Lease interest expense
Interest income
Interest capitalised to capital  
work in progress
Net interest expense

Generation/
Wholesale 
$M
 944 
 497 
 1 
 16 
 1,458 

 (795)
 (77)

 (25)
–
 (3)
 (35)
 (34)
 (34)
 (11)
 (1,014)

 444 

 (3)
–
–

–

 (3)

Retail 
$M
–
 807 
–
 10 
 817 

 (298)
 (345)

 (8)
 (3)
 (46)
 (32)
 (5)
 (27)
 (11)
 (775)

42

–
–
–

–

–

Metrix 
$M
–
–
–
 33 
 33 

Other 
Segments 
$M
–
–
–
–
–

Inter–
segment 
$M
–
 (291)
–
 (16)
 (307)

–
–

–
 (3)
–
 (5)
 (3)
 (2)
–
 (13)

20

–
–
–

–

–

–
–

–
–
–
 (14)
–
 (8)
 22 
–

–

 (71)
 (2)
 1 

–

 (72)

 291 
–

–
–
 16 
–
–
–
–
 307 

–

–
–
–

–

–

Total 
$M
 944 
 1,013 
 1 
 43 
 2,001 

 (802)
 (422)

 (33)
 (6)
 (33)
 (86)
 (42)
 (71)
–
 (1,495)

506

 (74)
 (2)
 1 

–

 (75)

Prior year comparative figures have been amended to reflect the share of earnings of associates now recognised in total revenue.

Audit fees
Fees payable to EY, who are appointed by the Auditor-General, for the audit and review of the financial statements and other 
assurance and agreed upon procedure engagements were $606,000 (2019: $605,000). Non-audit services in relation to 
provision of remuneration market survey data were $13,000 (2019: $33,000). EY (US) also provided US tax compliance services in 
the amount of $192,000 (2019: $264,000).

NOTE 3. NON-STATUTORY MEASURE – UNDERLYING EARNINGS
Underlying earnings after tax is presented to enable stakeholders to make an assessment and comparison of earnings after 
removing one-off and/or infrequently occurring events (exceeding $10 million of profit before tax, which represents material 
items), impairments, any change in the fair value of derivative financial instruments and gain on sale, all net of tax expense. 
Changes in the fair value of financial instruments are excluded from underlying earnings in order to align their impact when they 
mature with the underlying hedged items.

PROFIT FOR THE YEAR
Change in the fair value of financial instruments
Impairments/Gain on sale in metering business
Tilt bargain purchase gain
Adjustments before tax expense
Tax (credit)/expense
Adjustments after tax expense
Underlying earnings after tax

Tax has been applied on all taxable adjustments at 28%.

2020 $M
207
(22)
–
(18)
(40)
(3)
(43)
164

2019 $M
357
(26)
 (177)
–
(203)
 7 
(196)
161 

During the year the Group began accounting for its investment in Tilt Renewables Limited ("Tilt") as an investment in an associate. 
This required a comparison between the cost of the Group’s investment and the fair value of it’s share of identifiable assets, with 
the difference of $18 million being recognised as a bargain purchase gain on transition. Prior to moving to equity accounting, a 
$10 million deferred tax expense was recognised in prior periods in relation to unrealised fair value movements of the Group's 
investment in Tilt. This tax expense was reversed during the period. For further details see Note 9.

The Group has previously backed out its equity accounted share of the change in fair value of financial instruments of associate 
entities. The Group no longer feels that it is relevant to include this within underlying earnings and has amended its calculation 
accordingly. This change had no impact on the prior period comparatives for underlying earnings.

U
N
E
M

S
R
E
B
M
U
N
N

I

M
O
D
E
E
R
F
Y
G
R
E
N
E

5
5

MERCURY ANNUAL REPORT 2020 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 4. SHARE CAPITAL AND DISTRIBUTION
The share capital of the Company is represented by 1,400,012,517 ordinary shares (2019: 1,400,012,517) issued and fully paid. 
The weighted average number of shares on issue during the year, on both a basic and diluted basis, was 1,361,032,535 (2019: 
1,360,894,041). These shares do not have a par value, have equal voting rights and share equally in dividends and any surplus on 
winding up.

Treasury shares
Balance at the beginning of the year
Acquisition of treasury shares
Balance at the end of the year

Dividends declared and paid
Final dividend for 2018
Interim dividend for 2019
Final dividend for 2019
Interim dividend for 2020

2020 Number  
of shares (M)

2020 $M

2019 Number  
of shares (M)

2019 $M

39
–
 39 

101
–
101

39
–
 39 

101
–
101

Cents per share

2020 $M

2019 $M

 9.1 
 6.2 
 9.3 
 6.4 

–
–
127
87
214

124
84
 – 
 – 
208

No imputation credits are available at 30 June 2020 (2019: $nil) as the imputation credit account has a deficit of $30 million 
(2019: deficit of $25 million). The imputation credit account is required to have a surplus balance at 31 March each year.

NOTE 5. TAXATION

Income Tax
(i) Tax expense
Profit before tax
Prima facie tax expense at 28% on the profit before tax
Increase/(decrease) in tax expense due to:
•  share of associates’ and joint ventures’ tax paid earnings 
•  reversal of deferred tax recognised on investment in Tilt Renewables
•  capital gain
•  change in tax treatment of commercial buildings
•  other differences
Tax expense attributable to profit from ordinary activities

Represented by:
Current tax expense
Deferred tax recognised in the income statement

2020 $M

2019 $M

 248 
 (69)

5
10
–
8
5
 (41)

 (90)
49

430
 (120)

 – 
–
51
–
 (4)
 (73)

 (81)
8

The tax expense charged to the income statement includes both the current year’s provision and the income tax effect of:

•  taxable temporary differences, except those arising from initial recognition of goodwill; and
•  deductible temporary differences to the extent that it is probable that they will be utilised.
Following an announcement from Tilt that it will be looking to reinvest earnings into capital development and due to the additional 
influence gained from having a director appointee, the Group considers it unlikely that Tilt will pay dividends in the foreseeable 
future and has therefore reversed its $10m deferred tax liability recognised at 30 June 2019 in relation to unrealised fair value 
gains.

Deferred Tax
Deferred tax is provided in full, using the liability method, on temporary differences arising between the tax and accounting bases 
of the Group’s assets and liabilities. A deferred tax asset is only recognised to the extent that there will be future taxable profit to 
utilise the temporary difference.

Property, plant and equipment is held on capital account for income tax purposes. Where assets are revalued, with no similar 
adjustment to the tax base, a taxable temporary difference is created that is recognised in deferred tax. The deferred tax liability 
on these revaluations is unlikely to crystallise in the foreseeable future under existing income tax legislation.

U
N
E
M

S
R
E
B
M
U
N
N

I

M
O
D
E
E
R
F
Y
G
R
E
N
E

6
5

MERCURY ANNUAL REPORT 2020 
 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 5. TAXATION (CONTINUED)

(i) Recognised deferred tax assets and liabilities
Property, plant and equipment
Financial instruments
Employee benefits and provisions
Other

(ii) Movement in deferred tax
Balance as at 1 July 2018
Charged/(credited) to the income statement
Charged/(credited) to other comprehensive 
income
Balance as at 30 June 2019

Balance as at 1 July 2019
Charged/(credited) to the income statement
Charged/(credited) to other  
comprehensive income
Other movements
Balance as at 30 June 2020

Assets 
2020 $M

Assets 
2019 $M

Liabilities 
2020 $M

Liabilities 
2019 $M

Net 
2020 $M

Net 
2019 $M 

–
27
3
31
61

–
 23 
 2 
30
55

 (1,263)
–
–
–
 (1,263)

 (1,213)
–
–
–
 (1,213)

 (1,263)
27
3
31
 (1,202)

Property, 
plant and 
equipment 
$M

Financial 
instruments 
$M

Employee 
entitlements 
$M

Other 
$M

 (1,155)
 26 

 (85)
 (1,214)

 (1,214)
 34 

(83)
–
 (1,263)

 5 
 (14)

 32 
 23 

 23 
15

(11)
–
27

 2 
–

–
 2 

 2 
1

–
–
3

 17 
 (5)

19
31

31
 (1)

3
 (2)
31

 (1,213)
 23 
 2 
30
 (1,158)

Total 
$M

 (1,131)
 7 

(34)
 (1,158)

 (1,158)
49

 (91)
 (2)
 (1,202)

The COVID-19 Response (Taxation and Social Assistance Urgent Measures) Act reintroduced tax depreciation on non-residential 
buildings. The $8 million impact of this legislation has been reflected in the deferred tax balance. No other tax relief measures 
had a material impact on Mercury’s tax balances.

NOTE 6. INVENTORIES
Cost is determined on a weighted average basis and includes expenditure incurred in acquiring inventories and bringing them to 
their final condition and location. Consumable stores of $22 million (2019: $23 million) are held to service and repair operating 
plant. 

NOTE 7. PROPERTY, PLANT AND EQUIPMENT 

Generation assets 
at fair value $M

Meters at  
cost $M

Other assets 
at cost $M

Right-of-
use assets

Capital work in 
progress at cost 
$M

Total $M

YEAR ENDED 30 JUNE 2019
Opening net book value
Additions
Transfers
Disposals
Net revaluation movement
Depreciation charge  
for the year
Closing net book value

Balance at 30 June 2019
Cost or valuation
Accumulated depreciation
Net book value

YEAR ENDED 30 JUNE 2020
Opening net book value
Additions
Transfers 
Disposals
Net revaluation movement
Depreciation charge  
for the year
Closing net book value

Balance at 30 June 2020
Cost or valuation
Accumulated depreciation
Net book value

 5,215 
 16 
 30 
 (1)
 250 

 (163)
 5,347 

 5,347 
–
 5,347 

 5,347 
 1 
 101 
–
 296 

 (170)
5,575

 5,575 
–
5,575

 48 
 3 
–
 (45)
–

 (6)
–

 23 
 (23)
–

–
–
–
–
–

–
 – 

–
–
 – 

 37 
 25 
–
 (2)
–

 (8)
52

 125 
 (73)
 52 

 52 
–
 7 
–
–

 (11)
 48 

 115 
 (67)
 48 

 12 
 42 
–
 (1)
–

 (4)
49

 59 
 (10)
 49 

 49 
–
–
–
–

 (5)
 44 

 56 
 (12)
 44 

 58 
 53 
 (30)
 (1)
–

–
80

 80 
–
 80 

 80 
 259 
 (108)
–
–

–
 231 

 231 
 – 
 231 

 5,370 
 139 
–
 (50)
 250 

 (181)
 5,528

 5,634 
 (106)
 5,528 

 5,528 
 260 
–
–
 296 

 (186)
5,898

5,977
 (79)
5,898

U
N
E
M

S
R
E
B
M
U
N
N

I

M
O
D
E
E
R
F
Y
G
R
E
N
E

7
5

MERCURY ANNUAL REPORT 2020 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 7. PROPERTY, PLANT AND EQUIPMENT (CONTINUED)

ASSETS CARRYING VALUES
The cost of property, plant and equipment purchased comprises the consideration given to acquire the assets plus other directly 
attributable costs incurred in bringing the assets to the location and condition necessary for their intended use.

The cost of property, plant and equipment constructed by the Group, including capital work in progress, includes the cost of all 
materials used in construction, associated direct labour and an appropriate proportion of variable and fixed overheads. Financing 
costs attributable to a project are capitalised at the Group’s specific project finance interest rate, where these meet certain time 
and monetary materiality limits. Costs of testing whether the assets are functioning properly, after deducting the net proceeds 
from power generation, are also capitalised. Costs cease to be capitalised as soon as an asset is ready for productive use.

Costs incurred in obtaining resource consents are capitalised and recognised as a non-current asset where it is probable they will 
give rise to future economic benefits. These costs are depreciated over the life of the consent on a straight-line basis.

Generation plant and equipment is measured at fair value less accumulated depreciation. Any surplus on revaluation of an 
individual item of property, plant and equipment is transferred directly to the asset revaluation reserve unless it offsets a previous 
decrease in value recognised in the income statement, in which case it is recognised in the income statement. A deficit on 
revaluation of an individual item of property, plant and equipment is recognised in the income statement in the period it arises 
where it exceeds any surplus previously transferred to the asset revaluation reserve. Any accumulated depreciation at the date 
of the revaluation is eliminated against the gross carrying amount of the asset and the net amount is restated to the revalued 
amount of the asset. Additions to property, plant and equipment stated at valuation subsequent to the most recent valuation are 
recorded at cost. All other items of property, plant and equipment are recorded at cost less depreciation and impairments.

Right-of-use assets constitute property and motor vehicles and represents the Group’s right to use those underlying assets as a 
lessee under lease agreements. In line with IFRS 16, all leases are recognised on the balance sheet. Lease payments are recorded 
as a repayment of the lease obligation and interest expense. Lease assets are depreciated on a straight line basis over the current 
lease term. The Group has recognised lease assets and lease liabilities at the present value of future lease payments for existing 
lease terms and all lease renewal options that are reasonably certain to be exercised. The weighted average incremental borrowing 
rate applied to lease liabilities recognised in the statement of financial position was 5.36% (2019: 5.26%). The Group’s lease 
interest and lease liability is disclosed in note 2 and note 12 respectively.

As at 30 June 2020, the capital work in progress balance is elevated due to the Group’s ongoing construction of its Turitea  
wind farm. Its phased commissioning is anticipated to commence in the second half of next year.

ASSETS CARRIED AT FAIR VALUE
All generation assets shown at valuation (except Resource Management Act consents) were revalued using a net present value 
methodology by PricewaterhouseCoopers, an independent valuer, as at 30 June 2020. This resulted in an increase to the carrying 
value of the Group’s hydro and geothermal generation assets of $253m and $43m respectively in the current year. This is in 
addition to the $250m revaluation increase recognised across the Group’s hydro and geothermal generation assets in 2019. As a 
consequence of the revaluation, accumulated depreciation on these hydro and geothermal assets has been reset to nil.

The key assumptions that are used in the valuation include the forecast of the future wholesale electricity price path, volumes, 
projected operational and capital expenditure, capacity and life assumptions and discount rate. In all cases there is an element of 
judgement required as they make use of unobservable inputs including wholesale electricity prices of between $75/MWh and $93/
MWh (2019: $75/MWh and $106/MWh), average operational expenditure of $161 million p.a. (2019: $158 million p.a.), net average 
production volumes of 6,708 GWh p.a. (2019: 6,703 GWh p.a.) and a post-tax discount rate of between 6.5% and 6.9% (2019: 7.2% 
to 7.6%). The valuation also assumed the on-going operation of New Zealand Aluminium Smelters Limited at Tiwai Point (see note 
19 – subsequent events), no material changes to the wholesale market regulatory regime, hydro and geothermal fuel supply being 
sustained over the modelled horizon and no material changes to generation consent conditions. The discounted cash flow valuation 
approach assumes 100% control and consequently a control premium should be applied if using an equity valuation technique to 
derive comparative asset values.

The following table outlines the valuation impact of changes to assumptions, keeping all other valuation inputs constant, that the 
valuation is most sensitive to.

Future wholesale electricity price path
Discount rate
Operational expenditure

Sensitivity

Valuation impact

+/- 10%
+/- 0.5%
+/- 10%

2020 $M
$891 / ($898)
($604) / $747
($267) / $267

2019 $M
$833 / ($837)
($531) / $641
($235) / $235

The carrying amount of revalued generation assets, had they been recognised at cost, would have been $1,959 million  
(2019: $1,937 million).

Depreciation
Depreciation is provided on a straight-line basis on all property, plant and equipment other than freehold land, capital work in 
progress and exploration and evaluation assets, so as to write down the assets to their estimated residual value over their expected 
useful lives. 

The annual depreciation rates are as follows:

Office fixture and fittings, including fit-out
Generation assets:
•  Hydro and thermal generation
•  Other generation
Computer hardware and tangible software
Other plant and equipment
Vehicles
Right of use assets

2020
2-50%

1-33%
2-33%
5-50%
2-50%
5-33%
4-33%

2019
2-50%

1-33%
2-33%
5-50%
2-50%
5-33%
4-33%

U
N
E
M

S
R
E
B
M
U
N
N

I

M
O
D
E
E
R
F
Y
G
R
E
N
E

8
5

MERCURY ANNUAL REPORT 2020 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 8. INTANGIBLE ASSETS

YEAR ENDED 30 JUNE 2019
Opening net book value
Additions
Transfers
Disposals
Amortisation for the year
Closing net book amount

BALANCE AT 30 JUNE 2019
Cost
Accumulated amortisation
Net book value

YEAR ENDED 30 JUNE 2020
Opening net book value
Additions
Transfers
Surrendered Units
Amortisation for the year
Closing net book amount

BALANCE AT 30 JUNE 2020
Cost
Accumulated amortisation
Net book value

Intangible 
software 
$M

Rights 
$M

Emissions 
units 
$M

Work in 
progress 
$M

 55 
 13 
 10 
 (20)
 (22)
 36 

 149 
 (113)
 36 

 36 
–
 22 
–
 (26)
 32 

 138 
 (106)
 32 

 20 
 1 
–
–
 (1)
 20 

 34 
 (14)
 20 

 20 
–
–
–
 (2)
 18 

 34 
 (16)
 18 

 16 
 7 
–
–
–
 23 

 23 
–
 23 

 23 
 7 
–
 (7)
–
 23 

23
 – 
23

 10 
 8 
 (10)
 (2)
–
 6 

 6 
–
 6 

 6 
 21 
 (22)
–
–
 5 

5
 – 
5

Total 
$M

 101 
 29 
–
 (22)
 (23)
 85 

 212 
 (127)
 85 

 85 
 28 
–
 (7)
 (28)
 78 

 200 
 (122)
 78 

amortised over the life of the rights, which range from 3 to 60 years (2019: 3 to 25 years). Testing for impairment will only arise 
when there is an indication that the asset may be impaired.

Emissions units and emissions obligations
Emissions units that have been allocated by the Government under the Projects to Reduce Emissions scheme are recorded at 
nominal value (nil value). Purchased emissions units are recorded at cost (purchase price). Emissions units, whether allocated or 
purchased, are recorded as intangible assets. Emissions units are not revalued subsequent to initial recognition.

Emissions units that are surrendered to creditors in compensation for their emissions obligations are recognised as an expense in 
the income statement and a reduction to intangible assets in the balance sheet, based on the weighted average cost of the units 
surrendered.

Emissions obligations are recognised as a current liability as the obligation is incurred. Up to the level of units held, the liability is 
recorded at the carrying value of those units intended to settle the liability. Forward contracts for the purchase of emissions units 
are recognised when the contracts are settled.

NOTE 9. INVESTMENT AND ADVANCES TO ASSOCIATES AND JOINT ARRANGEMENTS  
(JOINT VENTURES AND JOINT OPERATIONS)

The Group financial statements include the following: 

Name of entity
TPC Holdings Limited

Tilt Renewables Limited
Rotokawa
Ngā Awa Pūrua
EnergySource LLC
EnergySource Minerals LLC
Hudson Ranch I Holdings LLC

Principal activity
Investment holding
Electricity generation 
and development
Steamfield operation
Electricity generation
Investment holding
Mineral extraction
Electricity generation

Type
Associate

Associate
Joint operation
Joint operation
Joint venture
Joint venture
Joint venture

Interest held
2020
25.00%

2019
25.00%

19.96%
64.80%
65.00%
20.86%
20.84%
75.00%

19.97%
64.80%
65.00%
20.86%
20.84%
75.00%

Country
New Zealand

New Zealand
New Zealand
New Zealand
United States
United States
United States

Software
Acquired computer software licenses are capitalised on the basis of the costs incurred to acquire and bring to use. These costs are 
amortised over their estimated useful lives of between 2 to 15 years (2019: between 2 to 15 years). As these assets are deemed to 
have a finite life, impairment testing will only be performed when there is an indication that the intangible asset may be impaired.

Rights
Rights, of which land access rights are the most significant, acquired to further the Group’s generation development programme 
are stated at cost less accumulated amortisation and any accumulated impairment losses. Rights, which have a finite life, are 

Balance at the beginning of the year
Additions during the year
Share of earnings
Share of movement in other comprehensive income and reserves
Distributions received during the year
Balance at the end of the year

Associates

Joint ventures

2020 $M
 76 
 230 
18
8
 (4)
 328 

2019 $M
 88 
 –
 1 
 (9)
 (4)
 76 

2020 $M
 – 
 –
 – 
 – 
 – 
 – 

2019 $M
 – 
 –
 – 
 – 
 – 
 – 

U
N
E
M

S
R
E
B
M
U
N
N

I

M
O
D
E
E
R
F
Y
G
R
E
N
E

9
5

MERCURY ANNUAL REPORT 2020 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 9. INVESTMENT AND ADVANCES TO ASSOCIATES AND JOINT ARRANGEMENTS  
(JOINT VENTURES AND JOINT OPERATIONS) (CONTINUED)
At the end of the year the Group had outstanding advances to its Rotokawa joint venture partner in the amount of $6 million 
(2019: $6 million) and its associate TPC Holdings Limited of $4 million (2019: $4 million). For terms and conditions of these 
related party receivables refer to note 16.

Mercury’s share of losses in Energy Source LLC exceeds its interest in the joint venture. In compliance with the equity method 
under NZ IAS 28 – Investments in Associates and Joint Ventures, the Group has yet to recognise its share of losses relating to 
EnergySource LLC amounting to US$3 million.

The Group purchased an initial 19.99% stake in Tilt Renewables Limited (“Tilt”) in 2018. At that time the Group did not have 
representation on its board of directors and this investment was accounted for as an investment at fair value through the income 
statement. On 19 July 2019 the Group’s Chief Executive was appointed as a non-independent director to the board of Tilt. 
Consequently, the Group considers that it gained significant influence in the context of NZ IAS 28 – Investments in associated 
and joint ventures and has accounted for its investment as an investment in an associate from that date. This has resulted in an 
unrealised fair value loss of $4m being recognised for the period, bringing the investment to its market value on 19 July 2019.

In applying NZ IAS 28, the Group is required to compare the cost of its investment on 19 July 2019, to the fair value of its share of 
identifiable net assets of Tilt, and account for any resulting differences this creates when equity accounting its share of earnings 
and reserves. In doing so, the Group has taken into account the information arising from the sale of Tilt’s Snowtown 2 subsidiary in 
December 2019. The effect of this adjustment is to largely bring Tilt’s identifiable net assets in line with its market value as of  
19 July 2019 and recognise a bargain purchase gain of $18m.

Additionally, following an announcement from Tilt that it will be looking to reinvest earnings into capital development and due to the 
additional influence gained from having a director appointee, the Group considers it unlikely that Tilt will pay dividends in the foreseeable 
future and has therefore reversed its $10m deferred tax liability recognised at 30 June 2019 in relation to unrealised fair value gains. 

NOTE 10. RECEIVABLES, PAYABLES AND ACCRUALS

RECEIVABLES
Trade receivables and accruals
Allowance for impairment loss
Net trade receivables and accruals
Prepayments

2020 $M

2019 $M

241
 (2)
239
11
250

248
 (1)
247
 9 
256

Sales to customers and derivatives are typically invoiced on a monthly basis. Revenue from sales to and derivatives with large 
commercial and industrial customers is billed on a calendar month basis, while billing of sales to mass market customers occurs 
on a rolling cycle each month and over the year. Sales of energy to customers, both physical and financial (i.e. derivatives) are on 
contract terms that have similar characteristics and are therefore treated as a portfolio of contracts. Revenue accruals for unread 
gas and electricity meters at balance date involves an estimate of consumption for each unread meter, based on the customer’s 
past consumption history. Generation revenue is derived mostly from generation sales to the New Zealand wholesale market at 

the prevailing spot price at the grid injection point. Revenue is invoiced by the Wholesale Market Clearing Manager on a calendar 
month basis reflecting actual metered generation at the stations.

Trade receivables are non-interest bearing and are generally on 30 day terms. For terms and conditions of related party 
receivables refer to note 16.

The Group recognises an allowance for impairment loss when there is objective evidence that the Group will not be able  
to collect amounts due according to the original terms of the receivable. An allowance charge of $3 million (2019: $2 million)  
was recognised during the year. Receivables of $2 million (2019: $3 million) were deemed uncollectable were written off.

Expected Credit Loss
The Company applies the NZ IFRS 9 simplified approach to measuring expected credit losses which uses a lifetime expected loss 
allowance for all trade receivables.  

To measure the expected credit losses, trade receivables have been grouped based on days past due. The expected loss rates 
are based on the payment profiles of sales over a 12 month period before 30 June 2020 and the corresponding historical credit 
losses during the period, adjusted for any significant known amounts that are not receivable.

On that basis the following table details the loss allowance at 30 June 2020:

Expected loss rate
Gross carrying amount – trade receivable
Loss allowance

Movements in the allowance for impairment loss were as follows:
Balance at the beginning of the year
Charge for the year
Amounts written off
Balance at the end of the year

Payables and accruals
Trade payables and accruals
Employee entitlements
Sundry creditors

More than 
30 days past 
due
4%
5
–

More than 
60 days past 
due
27%
1
–

More than 
90 days past 
due
59%
2
1

%
$M
$M

Total

8
1

2020 $M

2019 $M

1
3
(2)
2

2
2
(3)
1

2020 $M

2019 $M

249
7
36
292

187
7
31
225

Trade payables are non-interest bearing and are normally settled on 30 to 60 day terms.

U
N
E
M

S
R
E
B
M
U
N
N

I

M
O
D
E
E
R
F
Y
G
R
E
N
E

0
6

MERCURY ANNUAL REPORT 2020 
 
 
 
 
 
 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 10. RECEIVABLES, PAYABLES AND ACCRUALS (CONTINUED)

NOTE 12. BORROWINGS

Customer contract assets 
Incremental costs (like commissions) of acquiring or retaining customers, are recognised on the balance sheet as customer 
contract assets, and are amortised on a straight-line basis over the period which is consistent with the transfer of the benefit to 
the customer, assumed to be two years. The treatment of credits given to customers are recognised directly against revenue when 
incurred.

CONTRACT ASSETS
Contract assets

Opening Balance
Additions
Amortised to operating expenses
Closing balance

2020 $M

2019 $M

3
1
(2)
2

3
3
(3)
 3 

Of the total contract assets balance, $1 million is expected to be amortised within one year of the reporting period and the 
remainder between one and three years of the reporting period end.

Borrowing currency 
denomination
NZD
NZD
NZD
NZD
USD
NZD
USD
NZD
USD
NZD

Coupon 
Maturity 
Various
Floating
< 3 months Floating
Jul–2019
Feb–2020
Dec–2020
Sep–2021
Dec–2022
Mar–2023
Dec–2025
Jul–2049

6.90%
8.21%
4.25%
Floating
4.35%
5.79%
4.60%
3.60%

Bank facilities
Commercial paper programme
Capital bonds
Wholesale bonds
USPP – US$125m
Wholesale/credit wrapper
USPP – US$30m
Wholesale bonds
USPP – US$45m
Capital bonds
Lease liabilities
Deferred financing costs
Fair value adjustments
Carrying value of loans

NOTE 11. PROVISIONS 

Balance at the beginning of the year

Provisions made during the year
Provisions used during the year
Discounting movement
Balance at the end of the year

Current
Non-current

Provisions have been recognised for the abandonment and subsequent restoration of areas from which geothermal resources 
have been utilised. The provision is calculated based on the present value of management's best estimate of the expenditure 
required, and the likely timing of settlement. Changes in these estimates made during the year are reported as an increase in 
provisions and a reduction in revaluation reserves. The increase in provision resulting from the passage of time (the discount 
effect) is recognised as an interest expense.

2020 $M
59

2019 $M
51

Current
Non-current

 14 
 (1)
 2 
 74 

 – 
74
74

6
 – 
2
59

 – 
59
59

The Group has $800 million of committed and unsecured bank loan facilities as at 30 June 2020 (30 June 2019: $500 million). 
The Company executed $300m of new facilities during the reporting period. Of the $800 million loan facilities, $100 million 
matures in June 2021, $200 million matures in September 2021, $100 million matures in August 2022, $100m matures in 
October 2022, $50m matures in March 2024 and rolling bank facilities of $250 million currently matures in December 2021.

The Group has a $200 million Commercial Paper programme which is fully backed by committed and undrawn bank facilities. 
Notes issued under the programme are short-term money market instruments, unsecured and unsubordinated and targeted at 
professional investors. The programme is rated A2 by Standard & Poor’s.

On 11 July 2019 Mercury redeemed the existing $300m MCY010 bonds and issued $300m of new unsecured, subordinated 
bonds (MCY020). The MCY020 bonds are due to mature in July 2049 unless redeemed earlier and have a fixed interest rate of 
3.6% through to the first reset date of 11 July 2024.

2020 $M
75 
200 
-
-
163 
300 
39 
26 
59 
302 
68 
(4)
63 
1,291 

446 
845 
1,291 

2019 $M
 – 
199 
305 
31
163 
300 
39 
26
59 
–
69 
(1)
43
1,233 

541 
692
1,233

U
N
E
M

S
R
E
B
M
U
N
N

I

M
O
D
E
E
R
F
Y
G
R
E
N
E

1
6

MERCURY ANNUAL REPORT 2020 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 12. BORROWINGS (CONTINUED)
The Group has entered into a Master Trust Deed and Supplementary Trust Deeds for all its NZD denominated Senior Fixed and 
Floating Rate Bonds with the New Zealand Guardian Trust Group Limited, acting as trustee for the holders. The Group has agreed, 
subject to certain exceptions, not to create or permit to exist a security interest over or affecting its assets to secure indebtedness, 
and to maintain certain financial covenants. There has been no breach of the terms of these deeds.

The Group has entered into a negative pledge deed in favour of its bank financiers in which the Group has agreed, subject to 
certain exceptions, not to create or permit to exist a security interest over or affecting its assets to secure its indebtedness, and 
to maintain certain financial ratios in relation to the Group. These undertakings and covenants also apply to the US Private 
Placement terms and conditions. There has been no breach of the terms of this deed or the terms and conditions of the US 
Private Placement.

The Group has entered into various lease contracts for the right to use land & buildings, motor vehicles and office equipment and 
is also deemed to be a lessee of transmission equipment.

NOTE 13. FINANCIAL RISK MANAGEMENT
The Group’s overall risk management programme focuses on the unpredictability of financial markets and seeks to proactively 
manage these risks with the aim of protecting shareholder wealth. Exposure to price, credit, foreign exchange, liquidity and interest 
rate risks arise in the normal course of the Group’s business. The Group’s principal financial instruments comprise cash and 
cash equivalents, trade receivables and accruals (not prepayments), advances, payables and accruals, borrowings and derivative 
financial instruments.

(A) MARKET RISK

Price risk – energy contracts
The Group enters into energy contracts that establish a fixed price at which future specified quantities of electricity are purchased 
and sold. The energy contracts are periodically settled with any difference between the contract price and the spot market price 
settled between the parties. At balance date, the principal value of energy contracts, including both buy and sell contracts, with 
remaining terms of up to 11 years (2019: 12 years), were $1,495 million (2019: $1,506 million). 

Foreign exchange risk
The Group is exposed to foreign exchange risk as a result of transactions denominated in a currency other than the Group’s 
functional currency. The currencies giving rise to this risk are primarily US Dollar, Japanese Yen, Euro, Yuan and Australian Dollar.

Foreign exchange risk arises from future commercial transactions (including the purchase of capital equipment and maintenance 
services), recognised assets and liabilities (including borrowings) and net investments in foreign operations. It is the Group’s 
policy to enter into forward exchange contracts to hedge its committed expenditure programme. At balance date the principal or 
contract amounts of foreign currency forward exchange contracts were $146 million (2019: $102 million).

Interest rate risk
The Group has exposure to interest rate risk to the extent that it borrows for fixed terms at floating interest rates. The Group uses 
interest rate swaps and interest rate options to manage this exposure. At balance date, the contract principal amount of interest 
rate swaps outstanding (including forward starts) was $1,440 million (2019: $2,095 million).

Sensitivity analysis
The following summarises the potential impact of increases or decreases in the relevant market risk exposures of the Group on 
post tax profit and on other components of equity. The analysis does not take into account dynamic market response over time, 
which could be material.

Price risk
Sensitivity analysis is based on an assessment of the reasonably possible movements in forward price.

Group
Electricity forward price increased by 10%
Electricity forward price decreased by 10%

Impact on post tax profit
2019 $M

2020 $M

Impact on equity

2020 $M

2019 $M

(1)
1

(12)
12 

(34)
33 

(33)
33 

Foreign exchange risk
Sensitivity analysis is based on the impact of the New Zealand Dollar weakening or strengthening against the most significant 
currencies for which the Group has foreign exchange exposure, allowing for reasonably possible movements in foreign exchange 
rates over a one year period based on the average actual movements experienced over the prior 10 years.

New Zealand Dollar – Euro
Currency strengthens by 10% 
Currency weakens by 10% 
New Zealand Dollar – USD
Currency strengthens by 10%
Currency weakens by 10%
New Zealand Dollar – Yuan
Currency strengthens by 10%
Currency weakens by 10%
New Zealand Dollar - AUD
Currency strengthens by 10%
Currency weakens by 10%

Impact on post tax profit
2019 $M

2020 $M

Impact on equity

2020 $M

2019 $M

 – 
 – 

 –
 –

 –
 –

 –
 –

 – 
 – 

 –
 –

 –
 –

 –
 –

(3)
4

(2)
3

(3)
4

17
(20)

(3)
3

(2)
2

(2)
2

–
–

U
N
E
M

S
R
E
B
M
U
N
N

I

M
O
D
E
E
R
F
Y
G
R
E
N
E

2
6

MERCURY ANNUAL REPORT 2020 
 
 
 
the underlying contract. It should be noted that the amounts presented are contractual undiscounted cash flows, consequently 
the totals will not reconcile with the amounts recognised in the balance sheet.

While the tables below give the impression of a liquidity shortfall, the analysis does not take into account expected future 
operating cash flows or committed and undrawn debt facilities that will provide additional liquidity support. 

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 13. FINANCIAL RISK MANAGEMENT (CONTINUED)

Interest rate risk
Sensitivity analysis is based on an assessment of the reasonably possible movement in the 10 year swap rate over a one year 
period based on actual movements over the last 10 years. The movement in post tax profits are due to higher/lower interest costs 
from variable rate debt and cash balances combined with the result of fair value changes in interest rate swaps and options that 
are valid economic hedges but which do not qualify for hedge accounting under NZ IFRS 9. The movements in other components 
of equity result from fair value changes in interest rate swaps and options that have qualified for hedge accounting.

Interest rates higher by 100 bps 
Interest rates lower by 100 bps

Impact on post tax profit
2019 $M
(4)
4 

2020 $M
(13)
13 

Impact on equity

2020 $M
20 
(22)

2019 $M
13
(16)

(B) CREDIT RISK
The Group manages its exposure to credit risk under policies approved by the Board of Directors. The Group performs credit 
assessments on all electricity customers and normally requires a bond from commercial customers who have yet to establish a 
suitable credit history. Customer bonds are held in a separate bank account.

It is the Group’s policy to only enter into derivative transactions with banks that it has signed an ISDA master agreement with, and 
which have a minimum long-term Standard & Poor’s (or Moody’s equivalent) credit rating of A- or higher.

JUNE 2020
Liquid financial assets
Cash and cash equivalents
Receivables

Financial liabilities
Payables and accruals
Loans
Lease liabilities

With respect to energy contracts, the Group has potential credit risk exposure to the counterparty dependent on the current 
market price relative to contracted price until maturity.

Net inflow/(outflow)

In the event of a failure by a retailer to settle its obligations to the Energy Clearing House, following the exhaustion of its prudential 
security, a proportionate share of the shortfall will be assumed by all generator class market participants. The Group consequently 
will be impacted in the event that this occurs.

The carrying amounts of financial assets recognised in the balance sheet best represent the Group’s maximum exposure to credit 
risk at the reporting date without taking account of any collateral held by way of customer bonds. 

(C) LIQUIDITY RISK

The Group manages its exposure to liquidity risk under policies approved by the Board of Directors. Policies require that prescribed 
headroom is available in undrawn and committed facilities to cover unanticipated needs and that a limited amount of facilities 
mature over the immediate 12 month forward-looking period. The Group’s objective is to maintain a balance between continuity 
of funding and flexibility through the use of various funding sources. 

Non-derivative financial liabilities
The following liquidity risk disclosures reflect all contractually fixed payoffs, repayments and interest from recognised non-
derivative financial liabilities. The timing of cash flows for non-derivative financial liabilities is based on the contractual terms of 

JUNE 2019
Liquid financial assets
Cash and cash equivalents
Receivables

Financial liabilities
Payables and accruals
Loans
Lease liabilities

Net inflow/(outflow)

U
N
E
M

S
R
E
B
M
U
N
N

I

M
O
D
E
E
R
F
Y
G
R
E
N
E

3
6

Less than  
6 months 
$M

6 to 12 
months 
$M

1 to 5  
years 
$M

Later than  
5 years 
$M

 79 
 244 
 323 

 (280)
 (452)
 (4)
 (736)

 (413)

 – 
 – 
 – 

 – 
 (11)
 (4)
 (15)

 (15)

 94 
 256 
 350 

 (216)
 (219)
 (4)
 (439)

 (89)

 – 
 – 
 – 

 – 
 (46)
 (4)
 (50)

 (50)

 – 
6
6

 (12)
 (425)
 (33)
 (470)

 – 
 – 
 – 

 – 
 (640)
 (50)
 (690)

 – 
 – 
 – 

 (9)
 (601)
 (31)
 (641)

 – 
 – 
 – 

 – 
 (743)
 (52)
 (795)

 (464)

 (690)

 (1,582)

Less than 6 
months 
$M

6 to 12 
months 
$M

1 to 5 years 
$M

Later than  
5 years 
$M

Total 
$M

 79 
 250 
329

 (292)
 (1,528)
 (91)
 (1,911)

Total 
$M

 94 
 256 
 350 

 (225)
 (1,609)
 (91)
 (1,925)

 (641)

 (795)

 (1,575)

MERCURY ANNUAL REPORT 2020 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 13. FINANCIAL RISK MANAGEMENT (CONTINUED)

(D) FAIR VALUE ESTIMATION

Derivative financial liabilities
The table below details the liquidity risk arising from derivative liabilities held by the Group at balance date. Net settled derivatives 
include interest rate derivatives and electricity price derivatives. Gross settled derivatives relate to foreign exchange derivatives 
that are used to hedge future purchase commitments. Foreign exchange derivatives may be rolled on an instalment basis until 
the underlying transaction occurs. While the maturity of these derivatives are short-term the underlying expenditure is forecast to 
occur over different time periods. The table also summarise the payments that are expected to be made in relation to derivative 
liabilities. The Group also expects to receive funds relating to derivative asset settlements. The expectation of cash receipts in 
relation to derivative assets should also be considered when assessing the ability of the Group to meet its obligations.

JUNE 2020
Derivative liabilities – net settled
Derivative liabilities – gross settled
•  Inflows
•  Outflows
Net maturity

JUNE 2019
Derivative liabilities – net settled
Derivative liabilities – gross settled
•  Inflows
•  Outflows
Net maturity

Less than  
6 months 
$M

6 to 12 
months 
$M

1 to 5 years 
$M

Later than  
5 years 
$M

 (58)

 131 
 (146)
 (73)

 (30)

–
–
 (30)

 (98)

–
–
 (98)

 (11)

–
–
 (11)

Less than  
6 months 
$M

6 to 12 
months 
$M

1 to 5 years 
$M

Later than  
5 years 
$M

 (64)

 104 
 (102)
 (62)

 (51)

–
–
 (51)

 (119)

–
–
 (119)

 (16)

–
–
 (16)

Total 
$M

 (198)

 131 
 (146)
 (213)

Total 
$M

 (250)

 104 
 (102)
 (248)

Fair values
The carrying amount of financial assets and liabilities recorded in the financial statements approximates their fair values except 
for: (i) the Fixed Rate Bonds, the Floating Rate Bonds and the US Private Placement, the fair values for which have been calculated 
at $28 million (2019: $60 million), $298 million (2019: $296 million) and $326 million (2019: $312 million) respectively; and (ii) the 
Capital Bonds, the fair value for which has been calculated at $314 million (2019: $305 million). Fair values are based on quoted 
market prices and inputs for each bond issue. 

Valuation techniques
The Group uses various methods in estimating the fair value of a financial instrument. The methods comprise:

•  Level 1 – the fair value is calculated using quoted prices in active markets;
•  Level 2 – the fair value is estimated using inputs other than quoted prices included in Level 1 that are observable for the asset or 

liability, either directly (as prices) or indirectly (derived from prices); and

•  Level 3 – the fair value is estimated using inputs that are not based on observable market data.

As at 30 June 2020 all of the Group’s financial instruments carried at fair value were categorised as level 2, except for electricity 
price derivatives. Electricity price derivative assets of $54 million were categorised as level 1 (2019: $44 million) and $70 million 
were categorised as level 3 (2019: $79 million). Electricity price derivative liabilities of $12 million were categorised as level 1 (2019: 
$17 million) and $99 million were categorised as level 3 (2019: $138 million).

Financial instruments that are measured using a valuation technique with only observable market inputs, or unobservable inputs 
that are not significant to the overall valuation, include interest rate derivatives and foreign exchange derivatives not traded on a 
recognised exchange.

Financial instruments that use a valuation technique which includes non-market observable data include non-exchange traded 
electricity contracts which are valued using a discounted cash flow methodology using a combination of ASX market prices 
for the first three years, combined with Management’s internal view of forward prices for the remainder of the contract’s term. 
Management’s internal view of forward prices incorporates a minimum price of $70/MWh and a maximum price of $115/
MWh (2019: minimum price of $69/MWh and a maximum price of $114/MWh) over the period in question (in real terms) and is 
determined by a demand supply based fundamental model which takes account of current hydrological conditions, future inflows, 
an assessment of thermal fuel costs, anticipated demand and supply conditions and future committed generation capacity.

Where the fair value of a derivative is calculated as the present value of the estimated future cash flows of the instrument there 
are two key inputs being used: the forward price curve and the discount rate. Where the derivative is an option, then the volatility 
of the forward price is another key input. The selection of inputs requires significant judgement, and therefore there is a range of 
reasonably possible assumptions in respect of these inputs that could be used in estimating the fair values of these derivatives. 
Maximum use is made of observable market data when selecting inputs and developing assumptions for the valuation technique.

U
N
E
M

S
R
E
B
M
U
N
N

I

M
O
D
E
E
R
F
Y
G
R
E
N
E

4
6

MERCURY ANNUAL REPORT 2020 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 13. FINANCIAL RISK MANAGEMENT (CONTINUED)

Level 3 sensitivity analysis
The following summarises the potential impact of increases or decreases in price risk exposures of the Group on post tax profit. 
Sensitivity analysis is based on an assessment of the reasonably possible movements in forward price.

Group
Electricity forward price increased by 10%
Electricity forward price decreased by 10%

Reconciliation of level 3 fair value movements
Opening balance
New contracts
Matured contracts
Gains and losses
•  Through the income statement
•  Through other comprehensive income
Closing balance

Impact on post tax profit
2019 $M
2020 $M

(6)
6 

(6)
6 

2020 $M

2019 $M

 (59)
6
24

–
12
 (29)

54
(28)
1

 (8)
(78)
(59)

Level 3 fair value movements recognised within the income statement of the Group are recognised within ‘change in the fair value 
of financial instruments’. 

Deferred ‘inception’ gains/(losses)
There is a presumption that when derivative contracts are entered into on an arm’s length basis, fair value at inception would be 
zero. The contract price of non exchange traded electricity derivative contracts are agreed on a bilateral basis, the pricing for which 
may differ from the prevailing derived market price curve for a variety of reasons. In these circumstances an inception adjustment 
is made to bring the initial fair value of the contract to zero at inception. This inception adjustment is amortised over the life of the 
contract by adjusting the future price path used to determine the fair value of the derivatives by a constant amount to return the 
initial fair value to zero.

The table below details the movements in inception value gains/(losses) included in the fair value of derivative financial assets and 
liabilities as at 30 June.

Electricity price derivatives
Opening deferred inception gains/(losses)
Deferred inception gains (losses) on new hedges
Deferred inception losses realised during the year
Closing balance

(E) CAPITAL RISK MANAGEMENT

2020 $M

2019 $M

 (12)
10
(5)
 (7)

 (15)
 3
 – 
 (12)

Management seeks to maintain a sustainable financial structure for the Group having regard to the risks from predicted short and 
medium-term economic, market and hydrological conditions along with estimated financial performance. Capital is managed to 
provide sufficient funds to undertake required asset reinvestment as well as to finance new generation development projects and 
other growth opportunities to increase shareholder value at a rate similar to comparable private sector companies.

In order to maintain or adjust the capital structure, changes can be made to the amount paid as dividends to shareholders, capital 
can be returned or injected or assets sold to reduce borrowings.

Consistent with other companies in the industry, the Group monitors capital on the basis of its gearing ratio. This ratio is 
calculated as net debt divided by total capital. Net debt is calculated as total borrowings (both current and non-current) less cash 
and cash equivalents. Total capital is calculated as shareholders’ equity plus net debt. The gearing ratio is calculated below:

Borrowings at carrying value
Fair value adjustments US Private Placement
Less cash and cash equivalents
Net debt
Total equity
Total capital

Gearing ratio

2020 $M
1,291 
(63)
(79)
1,149 
3,739
4,888

2019 $M
1,233 
(43)
(94)
1,096 
3,537 
4,633 

23.5%

23.7%

Under the negative pledge deed in favour of its bank financiers the Group must, in addition to not exceeding its maximum 
gearing ratio, exceed minimum interest cover ratios and a minimum shareholder equity threshold.

The Group seeks to maintain a debt to EBITDAF ratio of less than 3.0 times, on average through time, to maintain credit metrics 
sufficient to support its credit rating on an on-going basis. For the purpose of calculating this ratio and consistent with the rating 
agency treatment, the calculation of debt is deemed to be all senior debt and 50% of subordinated debt less cash and cash 
equivalents. For the year ended 30 June 2020, the Group had a debt to EBITDAF ratio of 2.0 times (2019: 1.9 times).

U
N
E
M

S
R
E
B
M
U
N
N

I

M
O
D
E
E
R
F
Y
G
R
E
N
E

5
6

MERCURY ANNUAL REPORT 2020 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 14. DERIVATIVE FINANCIAL INSTRUMENTS

The fair values of derivative financial instruments together with the designation of their hedging relationship are summarised 
below, based on maturity date:

2020 $M

2019 $M

CURRENT ASSETS
Interest rate derivative 
Electricity price derivative 
Foreign exchange derivative
Cross currency interest rate derivative 

CURRENT LIABILITIES
Interest rate derivative 
Electricity price derivative
Foreign exchange derivative
Cross currency interest rate derivative

NON-CURRENT ASSETS
Interest rate derivative 
Electricity price derivative 
Cross currency interest rate derivative 

NON-CURRENT LIABILITIES
Interest rate derivative
Electricity price derivative
Cross currency interest rate derivative – margin

23
67
–
36
126

26
75
 15 
–
116

11
57
28
96

101
37
–
138

 6 
 41 
 2 
 1 
 50 

 4 
 40 
–
 1 
 45 

 2 
 82 
 45 
 129

 91 
 115 
2 
 208

The majority of short-term low value foreign exchange derivatives, and short-term low value exchange traded energy contracts, 
while economic hedges, are not designated as hedges under NZ IFRS 9 but are treated as at fair value through profit and loss. All 
other interest rate derivatives (predominantly forward starting derivatives), interest rate derivatives and electricity prices derivatives 
(except those described below) are designated as cash flow hedges under NZ IFRS 9.

Cross currency interest rate swaps, which are used to manage the combined interest and foreign currency risk on borrowings 
issued in foreign currency, have been split into two components for the purpose of hedge designation. The hedge of the 
benchmark interest rate is designated as a fair value hedge and the hedge of the issuance margin is designated as a cash flow 
hedge.

Electricity contracts not designated as hedges for accounting purposes
The Group has an electricity hedge contract with the Tuaropaki Power Company. The contract settles against a moving hedge 
index rather than wholesale electricity prices.

Basis swaps: The Group has entered into a number of contracts to hedge wholesale electricity price risk between North and South 
Island generically called basis swaps. The most significant is a contract with Meridian Energy which has a remaining life of 5 years.

The changes in fair values of derivative financial instruments recognised in the income statement and other comprehensive 
income are summarised below:

Cross currency interest rate derivatives
Borrowings – fair value change

Interest rate derivatives
Cross currency interest rate derivatives – margin
Electricity price derivatives
Foreign exchange rate derivatives
Total change in fair value of derivative financial instruments

Income statement
2020 $M
18
(19)
(1)

2019 $M
10
 (11)
(1)

Other comprehensive  
income

2020 $M
 – 
 – 
 – 

2019 $M
 – 
 – 
 – 

13
(1)
10
5
26

3
(1)
(26)
–
(25)

 (16)
2
31
 (17)
–

 (30)
1 
(92)
 3 
(118)

In addition to the fair value loss on derivative financial instruments, the Group also recognised a fair value loss on its investment 
in Tilt Renewables Limited of $4 million prior to moving to equity accounting for its investment on 19th July 2019 (2019: fair value 
gain of $51m).

MOVEMENT IN CASH FLOW HEDGE RESERVE
Opening balance
The effective portion of cash flow hedges recognised in the reserve
Amortisation of fair values1
The amount transferred to balance sheet
Equity-accounted share of associates’ movement in other comprehensive income
Tax effect of movements
Closing balance

1.  Amounts reclassified to the income statement recognised in amortisation.

2020 $M
 (118)
–
1
6
–
(11)
 (122)

2019 $M
 (24)
 (118)
 1
 (1) 
 (9)
33 
 (118)

U
N
E
M

S
R
E
B
M
U
N
N

I

M
O
D
E
E
R
F
Y
G
R
E
N
E

6
6

MERCURY ANNUAL REPORT 2020 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 15. RECONCILIATION OF PROFIT FOR THE YEAR TO NET CASH FLOWS  
FROM OPERATING ACTIVITIES

Profit for the year

Items classified as investing or financing activities
•  Net interest accrual

Adjustments for:
Depreciation and amortisation
Carbon costs
Dividend income received from the investment in Tilt Renewables
Net (gain)/loss on sale of property, plant and equipment
Change in the fair value of financial instruments
Gain on sale of assets
Movement in effect of discounting on long-term provisions
Share of earnings of associate and joint venture companies
Other non-cash items
Net cash provided by operating activities before change in assets and liabilities

Change in assets and liabilities during the year:
•  Increase in trade receivables and prepayments
•  Decrease in consumable inventories
•  Increase/(decrease) in trade payables and accruals
•  Increase/(decrease) in provision for tax
•  Decrease in deferred tax
Net cash inflow from operating activities

2020 $M
207

2019 $M
357 

(4)

5

 214 
7
–
1
 (22)
–
2
 (18)
–
387

 (15)
 1 
18
14
(49)
356

 204 
–
 (1)
 1 
 (26)
 (177)
 4 
 1 
 (1)
 367 

(26)
4
 (9)
 (2)
 (8)
 326 

NOTE 16. RELATED PARTY TRANSACTIONS

Majority shareholder
The majority shareholder of Mercury NZ Limited is the Crown, providing it with significant potential influence over the Group. All 
transactions with the Crown and other entities wholly or partly owned by the Crown are on normal commercial terms. Transactions 
cover a variety of services including trading energy, postal, travel and tax.

Transactions with related parties
Mercury NZ Limited has investments in subsidiaries, associates and joint arrangements, all of which are considered related 
parties. 

As these are consolidated financial statements, transactions between related parties within the Group have been eliminated. 
Consequently, only those transactions between entities which have some owners external to the Group have been reported 
below:

Associates
•  Management fees and service agreements received
•  Energy contract settlements received/(paid)

Joint operations
•  Management fees and service agreements received
•  Energy contract settlements received/(paid)
•  Interest income

Transaction value

2020 $M

2019 $M

16
12

16
6
–

16
14

 12 
32
 1 

Energy contracts, management and other services are made on normal commercial terms. 

An advance to TPC Holdings Limited of $4 million (2019: $4 million) is interest free and repayable on demand subject to certain 
conditions being met. 

The long-term advance to our Rotokawa Joint Venture partner carries a floating interest rate. Repayments under the advance are 
linked to the level of receipts under the geothermal energy supply agreement. There is no fixed repayment date, the agreement 
will terminate on receipt of any outstanding balances.

No related party debts have been written off, forgiven, or any impairment charge booked.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 16. RELATED PARTY TRANSACTIONS (CONTINUED)

NOTE 17. COMMITMENTS & CONTINGENCIES

Key management personnel compensation (paid and payable) comprised:
•  Directors’ fees
•  Benefits for the Chief Executive and Senior Management:

Salary and other short-term benefits 
Termination benefits
Share-based payments

Transaction value

2020 
$000

2019 
$000

 948 

 990 

 7,086 
 324 
377
 8,735 

 6,519 
–
 532 
8,041

Other transactions with key management personnel
Key management personnel are those people with responsibility and authority for planning, directing and controlling the activities 
of the Group. Key management personnel for the Group are considered to be the Directors and Senior Management.

Directors and employees of the Group deal with Mercury NZ Limited as electricity consumers on normal terms and conditions, 
with staff discounts for employees, within the ordinary course of trading activities. A number of Directors also provide directorship 
services to other third party entities. A number of these entities transacted with the Group on normal commercial terms during 
the reporting period.

A number of key management personnel provide directorship services to direct subsidiaries and other third party entities as part 
of their employment without receiving any additional remuneration. Again, a number of these entities transacted with the Group 
on normal commercial terms in the reporting period.

The Group purchases directors and officers insurance for the benefit of key management personnel in relation to the services they 
provide to the Group.

Commitments
Within one year 
One to five years 
Later than five years 

Capital 

2020 $M
264
110
17
391

2019 $M
 198 
 129 
 14 
 341 

Capital commitments include purchases of both property, plant and equipment (PP&E) and intangibles. PP&E commitments 
include contracts for construction of wind generation assets at Turitea and refurbishment of hydro generation assets at Karapiro. 
Intangible commitments are contracts to purchase New Zealand emissions trading scheme (NZ ETS) units. In the event the NZ 
ETS is terminated the existing forward purchase agreements, which cover the eight year period from the end of the reporting 
period, will also terminate.

Contingencies
The Group holds land and has interests in fresh water and geothermal resources that are subject to claims that have been brought 
against the Government. 

The Pouākani Claims Trust No 2 and a group of kaumatua have recently filed a claim in the Māori Land Court seeking a 
declaration that certain parts of the Waikato riverbed are Māori customary land, including the riverbed beneath the Whakamaru, 
Maraetai I and II and Waipāpa dams. Mercury holds the fee simple or beneficial title to that land and has received advice that the 
applicants are unlikely to succeed with a claim to customary title in those parts of the Waikato riverbed beneath the Whakamaru, 
Maraetai I and II and Waipāpa dams. 

The Group holds land at Maraetai, Waikato, that is subject to a remedies hearing brought against the Government in the 
Waitangi Tribunal pursuant to the Treaty of Waitangi Act 1975. The remedies hearing relates to an application seeking binding 
recommendations for the resumption of land at Pouākani, including the Group’s land at Maraetai. The Group has received advice 
that the Tribunal’s decision on the matter is unlikely to impair the Group’s ability to operate its hydro assets.

A separate claim by the New Zealand Māori Council relating to fresh water and geothermal resources was lodged in 2012 with the 
Waitangi Tribunal. The Tribunal concluded that Māori have residual (but as yet undefined) proprietary rights in fresh water and 
geothermal resources and it will be for the Government to determine how any such rights and interests may best be addressed. 
The impact of this claim on the Group’s operations is unknown at this time.

From time to time the Group will issue letters of credit and guarantees to various suppliers in the normal course of business. 
However, there is no expectation that any outflow of resource relating to these letters of credit or guarantees will be required as a 
consequence. 

The Group has no other material contingent assets or liabilities. 

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS.

For the year ended 30 June 2020

NOTE 18. SHARE-BASED PAYMENTS

Long-term incentive plan
The Group operates equity-settled share based long-term incentive (LTI) plans for senior executives. The plans are designed to 
enhance the alignment between shareholders and those executives most able to influence the performance of the Group.  

Under the plans due to vest in July 2020 and July 2021 the senior executives purchase shares at market value funded by an 
interest free loan from the Group, with the shares held on trust by the Trustee of the LTI plan until the end of the vesting period. 
Vesting of shares is dependent on continued employment through the vesting period and the Group’s relative total shareholder 
return. If the shares vest, executives are entitled to a cash amount which, after deduction for tax, is equal to the initial loan 
balance for the shares which have vested. That cash amount must be applied towards repayment of their loan balance and the 
corresponding shares are released by the trustee to the individual. Under the plan, a relative total shareholder return measure is 
used. Performance is measured against a combination of: i) other electricity generators who are listed on the NZSX; and (ii) all 
NZX50 companies, both as at the start of the vesting period. 

During the year, a new performance plan was introduced where executives were awarded share rights in Mercury NZ Limited. 
Under the plan executives are granted the shares at nil cost if certain total shareholder return targets are met, irrespective of 
continued employment over the performance period. Performance is measured against a combination of: i) other electricity 
generators who are listed on the NZSX; and (ii) out performance against the Group’s internal return on capital hurdles. The plan is 
due to vest in July 2022.

Each LTI plan provides the board with a level of discretion and represents the grant of in-substance nil-price options to executives. 
During the year the Group expensed $376,849 in relation to equity-settled share based payment transactions (2019: $531,516).

Movements in the number of share options are as follows:

Balance at the beginning of the year

Options granted
Options expired
Options exercised

Balance at the end of the year

2020
 823,237 
 320,897 
 (338,075)
 (174,625)
631,434 

2019
 745,971 
 277,001 
 (199,735)
–
823,237 

NOTE 19. SUBSEQUENT EVENTS
The board of directors has approved a fully imputed final dividend of 9.4 cents per share to be paid on 30 September 2020.

Tiwai Point aluminium smelter
On 9 July 2020 New Zealand Aluminium Smelters (NZAS) announced its intention to wind down its operations at Tiwai Point, 
which it expects to complete in August 2021.

The smelter accounts for around 13% of New Zealand’s electricity consumption. Its closure is likely to have a material impact on 
the country’s electricity demand/supply balance and wholesale electricity prices. For example, electricity futures prices for the year 
ending June 2022 were trading at $96/MWh in Auckland and $80/MWh at Benmore and had reduced to $81/MWh and $55/
MWh at Auckland and Benmore respectively as of 31 July 2020.

While the future impact of the smelter’s closure remains uncertain, a dynamic electricity market response is likely with significant 
transmission upgrades planned and likely closures and/or reductions in gas and coal generation. Assuming the NZAS intention 
had been announced prior to 30 June 2020 and the currently observed impacts on future wholesale/futures prices at 31 July 
2020 had also occurred then the resultant impact on the Group’s accounts would have been:

•  The revaluation of the Group’s generation assets at fair value would have been smaller, with a $42m positive revaluation, as 

compared to the $296m recognised. As the current generation asset values fall within a range of possible post Tiwai valuations 
this difference is not expected to reverse in FY2021, other than through routine depreciation.

•  The fair valuation of the Group’s electricity derivatives would be higher by $76m, with a balance of $89m. This difference will 

eventually crystallise based on actual electricity spot prices in the future as the underlying contracts settle.

Tilt capital distribution
On 7 April 2020 the board of Tilt Renewables Limited (Tilt) announced its intention to undertake a share buy-back and 
cancellation, with one share out of every five shares held being cancelled at $2.91 per share. This resulted in the Group receiving 
$55 million on 10 July. As a result the Group’s cash reserves increased and the value of its investment in Tilt has been reduced by 
a commensurate amount. The Group continues to own a 19.96% stake in Tilt.

COVID-19
On 12 August 2020 the Auckland region re-entered COVID-19 Alert Level 3, with the rest of the country moving to Alert Level 2. 
Whilst the future remains uncertain in relation to COVID-19, the impacts on the Group based on experiences from the previous 
nationwide lockdown are not expected to be material.

236,911 options were exercisable at the end of the year (2019: 286,118) with the remaining options under the plan having a 
weighted average life of 1.8 years (2019: 1.5 years).

There are no other material events subsequent to balance date that would affect the fair presentation of these financial 
statements.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
 
THE TEAM BEHIND  
ENERGY FREEDOM.

There’s a big team that contributes to our mission: 
about 800 people; around 80,000 owners; our 
partners and our customers. Here we introduce 
you to our directors and executive team. We 
present our governance report and remuneration 
policy and report. We also share other disclosures, 
information for shareholders, sustainability indices, 
a glossary to help your understanding of industry 
and financial terms, and a directory to help you to 
stay in touch with us.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
YOUR DIRECTORS.

YOUR EXECUTIVE TEAM.

PRUE FLACKS // CHAIR

HANNAH HAMLING // DIRECTOR

ANDY LARK // DIRECTOR

VINCE HAWKSWORTH //  
CHIEF EXECUTIVE

KEVIN ANGLAND //  
GENERAL MANAGER RETAIL & DIGITAL

NICK CLARKE // GENERAL MANAGER 
GEOTHERMAL & SAFETY

SCOTT ST JOHN // DIRECTOR

KEITH SMITH // DIRECTOR

JAMES MILLER // DIRECTOR

JULIA JACK //  
CHIEF MARKETING OFFICER

PHIL GIBSON // GENERAL 
MANAGER HYDRO & WHOLESALE

LUCIE DRUMMOND //  
RISK ASSURANCE OFFICER

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PATRICK STRANGE // DIRECTOR

MIKE TAITOKO // DIRECTOR

WILLIAM MEEK // 
CHIEF FINANCIAL OFFICER

TONY NAGEL // GENERAL  
MANAGER CORPORATE AFFAIRS

MARLENE STRAWSON // GENERAL  
MANAGER PEOPLE & PERFORMANCE

1
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MERCURY ANNUAL REPORT 2020 
 
 
 
 
 
GOVERNANCE AT MERCURY.

At Mercury, we are committed to the highest 
standards of corporate governance. Robust 
frameworks, policies and processes are 
fundamental to our foundational pillars. 
This underpins our maintenance of strong 
relationships with our stakeholders, the long-
term sustainability of our business and assets, 
and our ability to create long-term value. 
The Board regularly reviews our corporate 
governance policies and practices to ensure 
compliance with NZX and ASX standards 
(Mercury is an ASX Foreign Exempt Listed 
company) as well as reflecting contemporary 
corporate governance trends in New Zealand 
and Australia.

CORPORATE GOVERNANCE  
HIGHLIGHTS FOR FY20
Over the reporting period, in addition to our usual Corporate 
Governance Framework, we focussed on the following 
activities:

Board composition: 

In February 2020, we welcomed new director Hannah 
Hamling to the Board following the vacancy created by 
the retirement of former Chair Joan Withers in September 
2019. Hannah’s strong environmental science background, 
governance skills and experience in water management 
issues adds to and complements the Board’s collective 
skills, diversity and experience. Hannah’s appointment 
was the result of careful consideration to ensure our Board 
remains well balanced.
Chief Executive: 

Following an extensive and robust search process the Board 
announced in December 2019 the appointment of our new 
Chief Executive, Vince Hawksworth. Vince’s experience in 
the energy sector in New Zealand and Australia positions 
him well to lead Mercury in its next phase of investment 
in renewable energy, as we add wind generation to our 
renewable energy portfolio.
COVID-19 governance:

The unprecedented events created by the COVID-19 
pandemic have accelerated the transition to digital ways 
of working, both as a Board and with management. During 
and following lockdown, the governance of the business 
continued seamlessly, including Board Meetings and Board 
Committee Meetings, using digital platforms and other 
technology.
2020 ASM: 

As at the date of this report, preparations are well underway 
for us to hold our first virtual Annual Shareholders’ Meeting. 
Given public health guidance and restrictions on gatherings 
resulting from the COVID-19 pandemic, we believe it is 
prudent that for our 2020 ASM we do not hold an in-
person meeting, but enable our shareholders to engage 
with our Board virtually through an online platform.

Our corporate governance practices comply with the ASX 
Corporate Governance Principles and Recommendations 
(fourth edition) and are in substantial compliance with the 
NZX Corporate Governance Code. The only exceptions relate 
to: 

•  Recommendation 3.3 (Remuneration Committee), 

where the governance of remuneration at Mercury is split 
between the People and Performance Committee for 
executive and general remuneration, and the Nominations 
Committee for director remuneration; and 

•  Recommendation 3.6 (Takeover Protocol), which was a 
decision based on restrictions under the Public Finance 
Act 1989 on ownership of Mercury’s shares. However, to 
comply with the NZX Corporate Governance Code, Mercury 
adopted a Takeovers Response Policy in calendar year 
2020.

These exceptions are explained in our full Corporate 
Governance Statement.

We have also reviewed the guidelines and principles from the 
International Corporate Governance Network (ICGN) Global 
Governance Principles, the International Finance Corporation 
(IFC) Global Corporate Governance Forum and the OECD, and 
we consider our practices and procedures substantially reflect 
these guidelines. We also consider that Governance at Mercury 
generally aligns with the BlackRock Corporate Governance and 
Engagement Principles published in 2020, although we are 
continuing to develop the completeness and transparency of 
our environmental and social issue disclosures, particularly in 
respect of climate change disclosure.

In the following section, we give an overview of our Board 
composition and experience, how we manage risks, our 
commitment to acting ethically and responsibly, our approach 
to privacy and our approach to inclusion and diversity.

Shareholders

MERCURY BOARD

Risk Assurance & 
Audit Committee 

People & Performance 
Committee

Nominations 
Committee 

Chief Executive 

Executive Management Team

MERCURY PEOPLE

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
GOVERNANCE AT MERCURY. (CONTINUED)

MERCURY’S BOARD

Independence and conflicts

Committee

Members

Roles and responsibilities

Composition and characteristics

The Board currently comprises eight directors: Prue Flacks 
(Chair), Hannah Hamling, Andy Lark, James Miller, Keith 
Smith, Scott St John, Patrick Strange and Mike Taitoko. Each 
of the directors is non-executive and independent. Details of 
our directors are available in the Board of Directors section of 
our website.

The Board has been a long-standing supporter of the Institute 
of Directors’ Future Directors Programme and has offered 
three appointees valuable experience sitting at the board 
table for 12 or more months. This programme provides future 
directors with exposure to real-life governance in action and 
valuable mentorship. It aims to increase the pool of board-
ready new directors in New Zealand. Future directors are 
invited to attend Mercury Board meetings and Committee 
meetings, although do not participate in decision-making. Our 
third future director, Anna Lissaman, concluded her 18-month 
tenure on 31 December 2019. The Board is currently in the 
process of determining our next future director.

The Board is structured to ensure that as a collective group it 
has the skills, experience, knowledge, diversity and perspective 
to fulfil its purpose and responsibilities. The Board’s 
responsibilities are set out in Mercury’s Board Charter.  
The Board Charter is available in the Executive Team section 
of our website.

All Mercury directors are considered by the Board to be 
'independent' directors in that they are non-executive directors 
who are not substantial shareholders and who are free of any 
interest, business or other relationship that would materially 
interfere with, or could reasonably be seen to materially 
interfere with, the independent exercise of their judgement. 
No director has been employed or retained, within the last 
three years, to provide material professional services to 
Mercury. Within the last 12 months, no director was a partner, 
director, senior executive or material shareholder of a firm 
that provided material professional services to Mercury or 
any of its subsidiaries. No director has been, within the last 
three years, a material supplier to Mercury or has any other 
material contractual relationship with Mercury or another 
group member other than as a director of Mercury. No 
director receives performance-based remuneration from, or 
participates in, an employee share scheme of Mercury. No 
director controls or is an executive or other representative 
of an entity which controls, 5% or more of Mercury’s voting 
securities. The Chief Executive is not a director of Mercury.

Our Board characteristics are set out in the diagram on the 
following page.

Committees

The Board has three standing committees: the Risk Assurance 
& Audit Committee (RAAC), the People & Performance 
Committee (PPC) and the Nominations Committee. Each 
Committee focuses on specific areas of governance. Together 
they strengthen the Board’s oversight of Mercury. As an 
exception to Recommendation 3.3 of the NZX Corporate 
Governance Code, the Board does not have a separate 
remuneration committee. Instead, the functions which would 
ordinarily be allocated to that committee are shared between 
the PPC in respect of the Chief Executive and the Executive 
Management Team (EMT), and the Nominations Committee 
in respect of the directors. During the reporting period, the 
members of the Committees were as follows:

Risk Assurance & 
Audit Committee

Keith Smith (Chair), James Miller 
and Patrick Strange. Prue Flacks 
was also a member by virtue of 
her position as Board Chair

People &  
Performance  
Committee

Scott St John (Chair), Andy Lark, 
and Mike Taitoko. Prue Flacks was 
also a member by virtue of her 
position as Board Chair

Nominations  
Committee

Prue Flacks (Chair), James Miller 
and Patrick Strange

Overseeing, reviewing and advising the Board on Mercury’s: 

•  risk management policies and processes (which includes oversight 

of health and safety assurance and climate-related risks and 
opportunities)

•  internal control mechanisms and internal and external audit 

functions

•  compliance policies and processes 
•  financial information prepared by management for publication
Assisting the Board to fulfil its People and Performance 
responsibilities relating to: 

•  Mercury’s People and Performance strategy and plan 
•  the remuneration and performance of the Chief Executive and 

Executive Management Team (EMT) 

•  People and Performance policies and practices
Identifying people with the necessary expertise, experience, diversity 
and perspectives for selection as potential directors to be nominated 
for election at the next Annual Shareholders’ Meeting or to fill a 
casual vacancy on the Board. Further, the Committee recommends 
to the Board an annual evaluation process of the Board and its 
committees and develops and maintains an assessment of the 
skills, experience, and knowledge of the directors. The Nominations 
Committee also makes recommendations to the Board on any 
proposal relating to director remuneration to be put to shareholders.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
GOVERNANCE AT MERCURY. (CONTINUED)

BOARD CHARACTERISTICS

C U S T O MER

100%

TENURE

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MERCIAL

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Each standing committee operates in accordance with a 
written Charter approved by the Board. The Committee 
Charters are available in the Corporate Governance section of 
our website.

Mercury assesses on a regular basis whether additional 
standing or ad hoc committees are required. During the year 
ended 30 June 2020, the Board established two temporary 
committees for discrete projects.

The Nominations Committee has developed a matrix setting 
out the skills relevant to the role of the Board. The matrix is 
used to evaluate the collective skills and experience of the 
directors against Mercury’s current and future requirements. 
This is a key input for the recruitment of new directors. The 
Board is focussed on ensuring that it takes advantage of, 
and benefits from, the diversity of skills, background and 
experiences of individual directors and that its culture reflects 
Mercury’s values.

The Board fosters a culture of collaborative and open 
discussion where each director is expected to contribute 
broadly.

This ensures that the Board as a collective group exceeds the 
individual contributions of its members.

Evaluations are regularly conducted to review the performance 
of the directors (individually and collectively), and the 
effectiveness of Board processes and committees. This is 
undertaken using a variety of techniques including external 
consultants, questionnaires and Board discussion. The last full 
Board review, with the assistance of an external facilitator, was 
completed in September 2019. The review found Mercury’s 
Board to be in the top tier, with strong diversity of thought 
in which different views were used to test and build off one 
another. It noted that directors engage constructively through 
multiple levels of the business, demonstrating genuine 
engagement outside of boardroom duties. Opportunities for 
strengthening insights in some areas of the business were 
identified. It is intended that a Board performance review led 
by the Chair will be completed before the end of calendar year 
2020. The Board also completed a comprehensive analysis of 
the skills of the Board during the reporting period.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
GOVERNANCE AT MERCURY. (CONTINUED)

The table below highlights those skills that the Board considers are required for governance. This aligns with Mercury’s 
commitments to our foundational pillars and strategy for creating long-term value for our shareholders.

SKILL ATTRIBUTE

Customer

Retail, marketing and brand experience
Senior experience in retail, marketing and brand 
development as we seek to positively differentiate 
our offering.

Partnerships

Regulatory knowledge and experience
An understanding of the evolving regulatory 
environment in which we operate and the role that 
plays in ensuring sustainable custodianship of our 
assets and providing benefit to our customers.

Government relationships
An understanding of the functioning of 
government and experience developing and 
maintaining constructive relationships and 
interactions with government and regulators.

Shareholder/investment community relationships
Experience in, and understanding of, shareholder 
and investment community concerns and 
developing constructive relationships.

Hannah 
Hamling

Andy  
Lark

James 
Miller

Mike 
Taitoko

Patrick 
Strange

Prue  
Flacks

Keith  
Smith

Scott  
St John

SKILL ATTRIBUTE

Hannah 
Hamling

Andy  
Lark

James 
Miller

Mike 
Taitoko

Patrick 
Strange

Prue  
Flacks

Keith  
Smith

Scott  
St John

Iwi relationships/connectivity
An understanding and appreciation of Māori 
culture, the ability to build and foster deep 
trusting relationships with iwi and a deep 
connection with iwi concerns and aspirations.

Kaitiakitanga

Electricity industry experience
Senior executive or governance experience within 
the electricity industry, together with a deep 
understanding of operational excellence.

Natural resource management  
(including climate change)
Familiarity with issues associated with natural 
resources including climate change and living  
our value of kaitiakitanga.

Primary skills

Secondary skills

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
GOVERNANCE AT MERCURY. (CONTINUED)

Hannah 
Hamling

Andy  
Lark

James 
Miller

Mike 
Taitoko

Patrick 
Strange

Prue  
Flacks

Keith  
Smith

Scott  
St John

SKILL ATTRIBUTE

Hannah 
Hamling

Andy  
Lark

James 
Miller

Mike 
Taitoko

Patrick 
Strange

Prue  
Flacks

Keith  
Smith

Scott  
St John

Finance/accounting/audit committee/risk 
management experience
Senior executive or board experience in financial 
accounting and reporting, corporate finance and 
internal controls, and developing and overseeing 
an appropriate risk framework and culture.

Business strategy experience
A track record of developing and implementing  
a successful and sustainable strategy.

Innovation and growth, entrepreneurship
A track record of demonstrated entrepreneurship 
and/or demonstrated understanding and 
commitment to innovation and a clear record of 
achieving organisational growth.

Commodity or financial markets trading
Experience and understanding of commodity  
and financial markets.

Primary skills

Secondary skills

SKILL ATTRIBUTE

People

Human resources, health and safety experience
Familiarity with people and performance issues to 
provide an environment for personal and business 
growth and an appropriate understanding of 
health and safety and wellness concerns.

Large company leadership experience
Sustainable success in business at a senior 
executive level.

Digitisation/technology
A detailed understanding of ICT and disruptive 
technologies and their potential impact to provide 
our customers with choice and freedom.

Commercial 

Governance experience
Commitment to the highest standards of 
governance and an ability to assess the 
effectiveness of senior management.

Australian energy market experience
Familiarity with the Australian energy market 
and the opportunities and challenges of doing 
business in that market.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
GOVERNANCE AT MERCURY. (CONTINUED)

ACTING ETHICALLY & RESPONSIBLY
At Mercury, all our people strive to do what’s right. Our Mercury 
Code ensures that our people know what the ‘right thing to do’ 
is. The Mercury Code documents the behaviours we require 
to embed and sustain our culture to successfully deliver our 
strategy and achieve our purpose of inspiring New Zealanders 
to enjoy energy in more wonderful ways. The Mercury 
Code requires all Mercury people, including directors and 
employees, to act honestly and with integrity and fairness at 
all times. The Mercury Code and associated policy framework 
underpin our ethical and behavioural standards. They support 
our promises to each other and define our commitment to our 
customers, our people and communities, and our investors. 
The Mercury Code is available in the Corporate Governance 
section of our website.

We also want to ensure that we work with suppliers who share 
our commitment to acting ethically and doing the right thing. 
Our Supplier Guiding Principles set out the way we work 
with our suppliers and what we expect from our suppliers in 
return. These principles include our commitments to treating 
people fairly, promoting wellbeing, protecting our business 
and our reputation, protection of personal information and 
sustainability. Our Supplier Guiding Principles are available in 
the Corporate Governance section of our website.

MANAGING RISK & ASSURANCE
Risk management is an integral part of Mercury’s business. 
Mercury has in place an overarching Risk Management Policy 
(available in the Corporate Governance section of our website) 
supported by a suite of risk management policies appropriate 
for our business which together form our risk management 
framework.

The purpose of the Risk Management Policy is to embed 
a comprehensive, holistic, Group-wide capability in risk 
management which provides a consistent method of 
identifying, assessing, controlling, monitoring and reporting 
existing and potential risks to Mercury’s business and to 
the achievement of our plans. The Policy sets out the risk 

management objectives and requirements of Mercury within 
which management is expected to operate. The Policy is 
reviewed annually by the RAAC and approved by the Board.

The risk management framework supports a comprehensive 
approach to risk, encompassing financial, strategic, 
environmental, operational, regulatory, reputational, social 
and governance risks. This includes assessing and managing 
climate-related risks. The framework involves actively 
identifying and managing risk and taking measures to reduce 
the likelihood of risk, contain potential hazards and take 
mitigating action to reduce impacts in line with risk tolerances. 
This approach is consistent with the precautionary principle.

Mercury has a Risk Assurance Officer who has the 
independence to determine the effectiveness of risk 
management, assurance and internal audit. The Risk 
Assurance Officer has a dual reporting line to the Chief 
Financial Officer and the RAAC Chair. The RAAC tasks the 
Risk Assurance Officer to ensure there is healthy and robust 
debate and interaction between management, risk assurance 
and audit providers.

Mercury operates a Risk Management Committee, comprised 
of representatives from the EMT and chaired by the Chief 
Executive. Its mandate is to promote risk awareness and 
appropriate risk management to all employees, and to monitor 
and review risk activities as circumstances and our strategic 
and operational objectives change. The Committee meets at 
least four times each year.

Mercury must accept some risks to achieve our strategic 
objectives and to deliver shareholder value. These are 
embodied in Mercury’s Risk Appetite Statements which are set 
and regularly reviewed by the Board and are set out in more 
detail in Mercury’s Corporate Governance Statement, available 
in the Corporate Governance section of our website.

The RAAC is responsible for overseeing, reviewing and 
providing advice to the Board on Mercury’s risk management 
policies and processes. The Risk Assurance Officer reports 
regularly to the RAAC on the effectiveness of Mercury’s 
management of material business risks. In addition, the RAAC 

annually reviews the risk management framework. The last 
review of the risk management framework took place in FY20.

The Auditor-General is the external independent auditor of 
Mercury and each of its subsidiaries (together, the ‘Group’), 
under the Public Audit Act 2001. The Auditor-General has 
appointed Lloyd Bunyan of Ernst & Young to carry out the 
FY20 audit on his behalf. The NZX Listing Rules require 
rotation of the key audit partner at least every five years. The 
provision of external audit services is guided by our Audit 
Independence Policy, which is available on our website. The 
external auditor attends all RAAC meetings and, consistent 
with the Stakeholder Engagement Policy, attends the Annual 
Shareholders’ Meeting and is available to our shareholders to 
answer questions relevant to the audit.

PRIVACY
Mercury has a comprehensive Privacy Policy and robust 
privacy framework. Our objective is to ensure that personal 
information in our care is managed carefully and respectfully. 
Privacy risk is managed within our risk management 
framework. Our General Counsel is also Mercury’s Privacy 
Officer and is responsible for implementing our Privacy 
Policy, promoting awareness of privacy matters, monitoring 
matters on a day-to-day basis, and escalating matters as 
required to our Chief Executive, with notification to the Risk 
Management Committee. Privacy issues are reported to the 
Risk Management Committee on a quarterly basis.

We consider the establishment and maintenance of a culture 
of privacy to be an important part of our privacy framework. 
Employees are required to complete Privacy Act training within 
a certain period of joining Mercury and to update that training 
annually. Business units that process personal information 
have Business Privacy Leads who champion privacy within 
their business unit. Recognising that mistakes are sometimes 
made, our processes for dealing with privacy breaches include 
escalation and assessment procedures and require the 
development of plans to prevent similar breaches occurring 
in the future. Our Privacy Policy is reviewed as required and at 
least every two years. 

INCLUSION & DIVERSITY
Mercury embraces and celebrates diversity in all its forms. A 
key element of the Mercury Attitude is that we encourage our 
people to share and connect. We aim to make Mercury a great 
and safe place to work, where our employees feel engaged 
and motivated to live up to their full potential, and also the full 
potential of their teams. Being part of a team that celebrates 
different backgrounds, views, experience and capability helps 
create an inclusive workplace where our people grow and 
thrive, leading to better business performance.

Our commitment to inclusion and diversity starts with our 
Inclusion and Diversity Policy and framework. A copy of this 
policy is available in the Corporate Governance section of our 
website.

Mercury’s approach to inclusion and diversity focuses on 
gender, age, ethnicity, sexual orientation, inclusion and 
flexibility. Activity is aligned to the following principles:

•  increasing the diversity of our workforce at senior levels;

•  creating a flexible and inclusive work environment that 
values difference and enhances business outcomes;

•  harnessing diversity of thought and capitalising on 

individual differences;

•  promoting leadership behaviours that reflect our belief in 

the value of inclusion and diversity; and

•  attracting and retaining a talented workforce through 
increasing the diversity of the candidate pool and 
maintaining a recruitment strategy that is attractive to all 
candidates.

Our progress against inclusion and diversity goals is measured 
against objectives set by the Board. These objectives are made 
up of a mixture of targets and benchmarks. Generally, targets 
exist where we believe that achieving diversity in that area 
is aided by us working towards a specific measure. In other 
areas, we use benchmarks where comparison against those 
identified data points will help inform our view of how our work 
towards diversity in that area is progressing.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
GOVERNANCE AT MERCURY. (CONTINUED)

Our performance against measurable objectives set by the Board is set out below:

Area of focus Objective

Gender

Improve representation of women at senior leadership levels.

Target

Employees

People Leaders

EMT

Board

2020

41%

33%

33%

33%

2021

43%

34%

>36%

>36%

Actual

2022

45% Employees

35% People Leaders

>40% EMT

>40% Board

As at 30 June 2019

As at 30 June 2020

41%

33%

22%

25%

39%

32%

33%

25%

Age

Ethnicity

Ensure that everyone is rewarded fairly for their work, regardless of gender. Targeting between 97% and 103% ratio on average over time.

Actual as at 30 June 2020 across all bands, excluding EMT = 93% – 104%.

Work towards an age profile for our team that is suitable for our business, 
taking into account the population that we work in.

Benchmark against the national median age of the labour force in the New Zealand 
National Labour Force Projections.

Our average age across the workforce is 43, which is consistent with the national median 
age of the labour force in the New Zealand National Labour Force Projections.

Work towards aligning the ethnicity of our team with the population and 
communities that we work in.

Ensure that our leadership reflects the diversity of our teams.

Ethnicity

Māori  
Employees 
People Leader

Pacific  
Employees 
People Leader

Asian  
Employees 
People Leader

2020

6% 
4%

9% 
4%

22% 
11%

2021

6% 
5%

9% 
4%

22% 
11%

2022 Ethnicity

Mercury 2020 Ethnicity*

NZ Population 2018 Census

Māori  
Employees 
People Leader

Pacific  
Employees 
People Leader

Asian  
Employees 
People Leader

7% 
6%

10% 
5%

23% 
13%

4.8% (38) 
1.7% (2)

6.6% (52) 
1.7% (2)

22.4% (176) 
10.0% (12)

16.5%

8.1%

15.1%

Increase representation of team members and people leaders across targeted ethnic groups 
– Māori, Pacific and Asian.

* Employee data, as at 30 June 2020, from Mercury’s payroll system provides the 
baseline benchmark of self-identified ethnicity.

Benchmark against national statistics (Census data) that show the ethnicity of the 
population and communities that we work in.

Targets will be reviewed year-on-year, taking into consideration workforce impacts associated 
with digitalisation and automation and the available tertiary-qualified talent pool.

Inclusion

Ensure that our team are supported to do their best work and they 
engage fully as part of our team.

Targeting better performance than the external benchmark.

Flexibility

Facilitate flexible workplace arrangements to enable employees to 
balance responsibilities appropriately.

Targeting better performance than the external benchmark.

In response to our 2020 Employee Engagement Survey, 78% of employees confirmed 
that people from all backgrounds have equal opportunities to succeed at Mercury, 
compared with 2020 Global Inclusion Benchmark of 76%. This benchmark is from 
Culture Amp (Mercury’s employee feedback platform) based on survey responses from 
employees across nearly 200 organisations globally.

In response to our 2020 Employee Engagement Survey, 72% of employees confirm that 
they are genuinely supported if they choose to make use of flexible working arrangements, 
compared with 2020 Oceania Large Organisations Benchmark of 78%.

As at 30 June 2020, the proportion of women on the EMT (including the Chief Executive) was 33%, or three out of nine (as at 30 
June 2019 this was 22% or two out of nine). The proportion of women on the Board at balance date was 25%, or two out of eight, 
including the Chair (as at 30 June 2019 this was 25%, or two out of eight).

The Board believes that for this reporting period Mercury has made progress towards achieving our inclusiveness and diversity 
objectives and against our Inclusion and Diversity Policy generally. However, the Board notes that continued focus is required in 
order for us to achieve our 2021 gender diversity targets.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
REMUNERATION REPORT.

Therefore, all executives’ remuneration, including the Chief 
Executive’s, has not changed for FY21. Further, it was decided 
that short-term incentive payments for FY20 would not 
exceed on-target amounts.

I am proud of the way the Executive Management Team 
(EMT) and all Mercury employees responded to the COVID-19 
pandemic and a very challenging year overall, for the benefit 
of Mercury, its customers, shareholders and New Zealand. 

SCOTT ST JOHN 
CHAIR, PEOPLE & PERFORMANCE COMMITTEE

Executive remuneration

Fixed remuneration

Mercury’s remuneration policy for the EMT is founded on three 
guiding principles:
•  remuneration is aligned to long-term sustainable 

Fixed remuneration consists of base salary and benefits. 
Mercury’s policy is to pay fixed remuneration with reference to 
the fixed pay market median.

shareholder value;

•  remuneration for individuals will reflect the level of 

performance and delivery of successful outcomes; and
•  simplicity over complexity will be reflected in the design.

Total remuneration is made up of three components: 
fixed remuneration, short-term performance incentives 
and long-term performance incentives. Short- and long-
term performance incentives are deemed ‘at-risk’ because 
the outcome is determined by performance against a 
combination of predetermined financial and non-financial 
objectives.

Mercury’s remuneration philosophy is to pay for performance 
and there is an opportunity for executives to receive, where 
performance has been exceptional, a total remuneration 
package in the upper quartile for equivalent market-matched 
roles.

The PPC reviews the annual performance appraisal outcomes 
for all members of the EMT and approves the outcomes for 
all EMT members other than the Chief Executive. The Chief 
Executive’s remuneration is approved by the Board on the 
recommendation of the PPC. The review takes into account 
external benchmarking to ensure competitiveness with 
comparable market peers, along with consideration of an 
individual’s performance, skills, expertise and experience.

Short-term performance incentives

Short-term incentives (STIs) are at-risk payments designed to 
motivate and reward for performance in that financial year.
The target value of an STI payment is set annually, usually 
as a percentage of the executive’s base salary. For FY20 the 
relevant target percentage for both Chief Executives (Fraser 
Whineray and Vince Hawksworth) was 50% and for other EMT 
members it was up to 35%.

A proportion (70% for the Chief Executive and 50% for other 
EMT members) of the STI is related to a shared set of Key 
Performance Indicators (KPIs) based on business priorities for 
the next 12 months, with the objective of aligning the EMT’s 
focus with the company’s priorities.

The shared KPIs in FY20 covered the areas of Commercial, 
People, Customer, Partnerships and Kaitiakitanga with 
respective weightings applied across areas as outlined 
below. The Commercial KPI is normalised for positive and 
negative annual variations in hydrology as these are beyond 
management’s control. The criteria are selected to closely 
align with Mercury’s strategic objectives, purpose and goals, 
and Mercury’s five key pillars. For FY21 the weightings have 
been adjusted as shown. 

DIRECTOR & EXECUTIVE  
EMPLOYEE REMUNERATION
Dear Shareholder

As Chair of the People and Performance Committee (PPC) 
of the Board, it is my pleasure to present our Remuneration 
Report for the year ended 30 June 2020.

This report outlines Mercury’s strategy and approach to 
remuneration and in particular for its executives. It sets out 
remuneration information for the Chief Executive, direct 
reports to the Chief Executive and directors. This year with the 
departure of the Chief Executive – Fraser Whineray and the 
arrival of the new Chief Executive – Vince Hawksworth, two 
sets of remuneration data for the Chief Executive for FY20 are 
set out in the report. 

Mercury’s Board is committed to a remuneration framework 
that promotes a high-performance culture and aligns 
executive reward to the achievement of strategies and 
objectives to create sustainable value for shareholders. The 
Board is committed to demonstrating transparency in its 
remuneration policy and practice.

The Board is supported by the PPC for these activities. The 
role and membership of the PPC is set out in the Corporate 
Governance section of this Annual Report.

I was pleased to take up the position of Chair of the PPC in 
October 2019. This has been an interesting and challenging 
year especially with the COVID-19 pandemic response putting 
New Zealand into lockdown. Mercury supplies an essential 
service and it is important our assets are operated and 
maintained to ensure security of electricity supply. Our people 
are critical to this. The Board’s approach to remuneration 
outcomes for FY20, and to setting remuneration for FY21, 
has been to balance the need to be fair to, and maintain 
the goodwill of our people with, in the context of the overall 
economic and social environment. A decision was made 
by the Board to not review remuneration for any Mercury 
employee earning a base salary of $100,000 or more in 2020. 

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
REMUNERATION REPORT. (CONTINUED)

Pillar

Commercial: EBITDAF1

People

Customer 

Partnerships

Kaitiakitanga

FY20 Weighting %

FY21 Weighting %

30

25

20

15

10

40

15

20

15

10

Note 1: 

EBITDAF is normalised for positive and negative annual variations in Waikato hydro generation.

For FY20 there were three performance levels within each 
pillar area: ‘threshold’, ‘on-target’ and ‘stretch’. The stretch 
performance levels allowed employees to be rewarded for 
exceptional performance. The maximum amount of an STI 
payment for an EMT member for the shared KPIs was 178% 
of the STI on-target amount (subject to the cap referred to 
previously, subsequently imposed by the Board). 

The balance of the STI for the Chief Executive is related to 
individual performance measures set by the Board. In the case 
of other EMT members, the balance is related to business unit 
and individual performance measures.

In the event all five performance thresholds are not met for 
the Group KPIs, no STI payment will be made.

The Board retains discretion to ensure the final outcome of 
STI payments fairly reflects performance over the relevant 
financial year.

Long-term performance incentives to  
FY21 vesting
Long-term performance incentives (LTIs) are at-risk payments 
designed to align the reward of certain executives with the 
enhancement of shareholder value over a multi-year period.

Under the LTI plan applying up to the grant date of 1 July 
2018, grants were made annually with performance measured 
over a three-year period. The face value less tax was used to 
determine the number of shares held in trust for each grant 
and was set at the date of the grant. Each grant under that LTI 
plan is divided into two tranches having different performance 
hurdles:

•  50% of the grant is based on Mercury’s total shareholder 
return (TSR) relative to the NZX 50 and is subject to a 
“gate” that Mercury’s TSR over that period must be at least 
positive; and

•  50% of the grant is based on Mercury’s TSR relative to 
the performance of an industry peer group (comprising 
Meridian Energy, Genesis Energy, Contact Energy and 
Trustpower). There is no positive TSR performance gate 
on this tranche but Mercury’s TSR must be at the 50th 
percentile of the comparator group for any award to be 
made on this component of the LTI plan.

LTI payments are made in shares rather than cash. The 
maximum number of shares which an executive may receive 
for each grant is determined by dividing the value of the grant 
less tax by the market value of one Mercury share as at the 
date of the grant.

Long-term incentive plan from  
FY22 vesting
The new LTI plan that commenced 1 July 2019 is a dividend-
protected share rights plan. Under this LTI plan, executives 
are granted a number of share rights determined by dividing 
the face value of the grant by the value of one Mercury share 
at the date of the grant. At vesting, subject to meeting the 
performance hurdles, each share right is converted to one 
ordinary share. The executive may also receive additional 
shares representing the value of dividends paid over the 
vesting period. The executive is liable for tax on the shares 
received at this point. Under this plan, grants will continue to 
be made annually with performance measured over a three-
year period.

Each grant under this LTI plan also has two tranches with 
different performance hurdles:

•  50% of the grant is based on Mercury’s TSR relative to 
the performance of an industry peer group (comprising 
Meridian Energy, Genesis Energy, Contact Energy and 
Trustpower). There is no positive TSR performance gate 
on this tranche but Mercury’s TSR must be at the 50th 
percentile of the comparator group for any award to be 
made on this component of the LTI plan; and

•  50% of the grant is based on Mercury’s absolute TSR 
against the company’s cost of equity over the vesting 
period, plus 1%.

For the FY20 grant period commencing 1 July 2019, the value 
represented between 20% to 40% of an executive’s base 
salary as at that date. 

The Board retains discretion over the final outcome for 
both LTI plans, to allow appropriate adjustments where 
unanticipated circumstances may impact performance, 
positively or negatively, over a three-year period.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
REMUNERATION REPORT. (CONTINUED)

CHIEF EXECUTIVE’S REMUNERATION.

Chief Executive's remuneration (FY20 and FY19)

Breakdown of Chief Executive's pay for performance (FY20)

Salary2 $

Benefits3 $

Subtotal $

Chief Executive – Vince Hawksworth

STI

Pay for performance $
Subtotal

LTI

Total remuneration 
$

FY20

309,231

65,927

375,158

138,7824

N/A

138,782

513,940

Chief Executive – Fraser Whineray

FY20

FY19

Note 2: 

Note 3: 

Note 4: 
Note 5: 

805,883

1,124,214

65,909

57,433

871,792

1,181,647

460,6804

614,079

321,0045

179,989

781,684

794,068

1,653,476

1,975,715

 Actual salary paid includes holiday pay paid as per NZ legislation. The annualised base salary for Vince Hawksworth  
for FY20 was $1,200,000 and for Fraser Whineray FY19 was $1,054,212.50 and FY20 was $1,085,838.88.
 Benefits include KiwiSaver and insurance. Vince Hawksworth received a $55,000 one-off payment for relocation costs which  
is included here.
Both CE’s short-term incentive was pro-rated for the period worked in FY20.
 Holiday pay and Kiwisaver of $36,081 was paid to Fraser Whineray on this LTI amount but is not reported in FY20 figures due to being 
paid in FY21.
For reference: On 19 July 2019 Fraser Whineray was appointed to the Board of Tilt Renewables Ltd as a Director. For details of  
remuneration received in FY20 refer to Tilt Renewables’ annual report.

Five-year summary – Chief Executive's remuneration

Chief Executive – 
Vince Hawksworth
Chief Executive – 
Fraser Whineray

Total 
remuneration 
paid6 $

Percentage  
STI against 
maximum7 %

Percentage  
vested LTI against  
maximum %

Span of LTI 
performance  
period

FY20

FY20

FY19

FY18

FY17

FY16

513,940

1,653,476

1,975,715

1,803,283

1,881,192

1,501,434

51

69

65

67

63

57

N/A

87

50

0

98

78

N/A

2017– 2020

2016 – 2019

2015 – 2018

2014 – 2017

2013 – 2016

Note 6: 
Note 7: 

Total remuneration paid including Salary, Benefits, STI and LTI payments.
Maximum STI was 178% of ‘on-target’ performance pay.

STI8

LTI8

Description
Set at 50% of base salary. 
Based on a combination 
of key financial and non-
financial performance 
measures

Shares issued and rewarded 
under the long-term incentive 
scheme. Shares issued 1 July 
2017 at $368,974.38 gross to 
Fraser Whineray

Performance measures
70% based on the five Company Shared 
KPIs (see table above for weightings)

20% based on individual measures

10% based on business KPIs (for Chief 
Executive only)
50% weighting relative TSR performance 
against NZX 50 (fixed at date of grant) 
with 50% vesting at 50th percentile and 
100% at 75th percentile; pro rata vesting 
in between
50% weighting relative TSR performance 
against industry peer group (comprising 
Meridian Energy, Genesis Energy, Contact 
Energy and Trustpower) with 50% vesting 
at 50th percentile and 100% at 75th 
percentile; pro rata vesting in between

Percentage  
achieved by  
Vince Hawksworth
88.5

Percentage  
achieved by  
Fraser Whineray
119.75

95

95

N/A

130

130

100

N/A 

74

Note 8: 

 The above STI and LTI payments for FY20 will be paid in FY21, with the exception of Fraser Whineray’s STI which was paid 
at time of his departure in FY20.

Five-year summary – TSR Performance (company vs peer group)

%

R
S
T

50

40

30

20

10

0

-5

Mercury

Peer group

NZX 50

30 June
2016

30 June
2017

30 June
2018

30 June
2019

30 June
2020

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
 
 
 
 
 
 
 
CHIEF FINANCIAL OFFICER’S REMUNERATION
In the interests of providing greater transparency of executive remuneration, the Board has elected to provide details regarding 
total remuneration paid to the Chief Financial Officer.

In FY20, the Chief Financial Officer received remuneration totalling $852,245. This amount included a $185,538 STI payment 
and a $77,500 LTI payment, both relating to FY19 but paid in FY20. The Chief Financial Officer also received a $50,000 one off 
discretionary payment as compensation for the additional responsibilities of acting as Chief Executive between the departure 
of Fraser Whineray and the commencement of Vince Hawksworth. The remaining $539,207 was a combination of fixed 
remuneration and benefits. 

REMUNERATION REPORT. (CONTINUED)

KiwiSaver

The Chief Executive is a member of KiwiSaver. As a member of this scheme, the Chief Executive is eligible to contribute and 
receive a company contribution of 3% of gross taxable earnings (including short- and long-term incentives). For FY20, the 
company’s contribution for Vince Hawksworth was $10,927 and for Fraser Whineray $61,819.

FY21 CHIEF EXECUTIVE’S REMUNERATION STRUCTURE
The Board has elected, in the interests of transparency, to disclose in advance the structure and package that will apply for FY21.

FY21

Base Salary $

Benefits9 $

Subtotal $

Pay for performance 'on-target' $

Total remuneration 
$

Chief 
Executive

1,200,000

36,000

1,236,000

600,000

900,000 1,500,000

2,736,000

STI

LTI granted10

Subtotal

Note 9: 
Note 10: 

Benefits include KiwiSaver. Insurance amount is not yet available and is additional.
This LTI will be granted in FY21 and, if hurdles are met, paid in shares in 2023. 

Chief Executive’s remuneration performance pay for FY21

$000

$3,500

$3,000

$2,500

$2,000

$1,500

$1,000

$500

$0

Long Term Incentives Granted (2023 vesting)

Annual Variable

Base Salary & Benefits

Fixed

On-plan

Maximum

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
REMUNERATION REPORT. (CONTINUED)

SHARE OWNERSHIP
The Chief Executive and Chief Financial Officer’s ownership of Mercury shares as at 30 June 2020 are:

Executive
Chief Executive – Vince 
Hawksworth
Chief Financial Officer

Balance of EMT 12

Number of shares owned (excludes shares 
held in trust for the LTI scheme)
2,080

Change in shares owned  
from 30 June 2019
+2,08011

163,215

175,697

-82,260

+23,392

Note 11: 

Note 12: 

 Vince Hawksworth joined Mercury on 30 March 2020, as such his share ownership entry was new during the reporting period. As at 30 
June 2020, Mercury’s former Chief Executive, Fraser Whineray owned 41,200 shares, which reflects a change of -192,151 shares owned 
at 30 June 2019. 
 Balance of shares owned by other EMT members, excluding shares owned by the current Chief Executive, former Chief Executive and 
Chief Financial Officer and excluding shares owned by Matt Olde who left the company on 6 March 2020. As at 30 June 2020, Matt 
Olde had a relevant interest in 93,648 shares, some of which were owned by a family trust. 

EMPLOYEE REMUNERATION
The Group paid remuneration in excess of $100,000 including benefits to 403 employees (not including directors) during the  
FY20 year in the following bands:

Remuneration band13 

$100,001-$110,000
$110,001-$120,000
$120,001-$130,000
$130,001-$140,000
$140,001-$150,000
$150,001-$160,000
$160,001-$170,000
$170,001-$180,000
$180,001-$190,000
$190,001-$200,000
$200,001-$210,000
$210,001-$220,000
$220,001-$230,000
$230,001-$240,000
$240,001-$250,000

Currently employed 

No longer 
employed

Total 

60
49
61
44
37
35
17
14
9
12
6
3
7
4
3

60
52
61
44
38
35
19
14
9
12
7
3
7
5
4

3

1

2

1

1
1

Remuneration band13 

$250,001-$260,000
$260,001-$270,000
$270,001-$280,000
$280,001-$290,000
$290,001-$300,000
$300,001-$310,000
$310,001-$320,000
$320,001-$330,000
$340,001-$350,000
$350,001-$360,000
$370,001-$380,000
$410,001-$420,000
$450,001-$460,000
$540,001-$550,000
$580,001-$590,000
$590,001-$600,000
$660,001-$670,000
$690,001-$700,000
$720,001-$730,000
$850,001-$860,000
$1,370,001-$1,380,000
$2,120,001-$2,130,000
Total

Currently employed 

No longer 
employed

Total 

2
4
2
3
2
1
1
2
3
1
1
1

1
1
1
1
1
1
1

391

2
4
2
3
2
1
1
2
3
1
1
1
1
1
1
1
1
1
1
1
1
1
403

1

114
115
12

Note 13: 
Note 14: 

Note 15: 

The remuneration bands above include 5 employees who received redundancy payments in FY20. 
 In addition to redundancy, this employee received two short-term incentive payments (in relation to FY19 and FY20) and two long-term 
incentive payments (in relation to FY17-FY19 and the two subsequent three-year periods) in FY20.
 This employee received two short-term incentive payments (in relation to FY19 and FY20) and one long-term incentive payment in FY20.

The total remuneration ratio for FY20 between employee (median) and Chief Executive base salary was 1:14. Note: For the ease 
of data collection, this ratio is based on actual remuneration paid in FY20 for employees and the Chief Executive’s base salary. 
We have not provided a comparison against the Chief Executive’s actual remuneration this year due to Vince Hawksworth being 
employed by Mercury for only part of the year.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
REMUNERATION REPORT. (CONTINUED)

DIRECTOR REMUNERATION
The directors’ remuneration is paid in the form of directors’ fees. Additional fees are paid to the Chair and in respect of work carried out by 
directors on various Board committees to reflect the additional time involved and responsibilities of these positions.

The total pool of fees able to be paid to directors is subject to shareholder approval and currently stands at $991,000. Directors’ fees were 
last reviewed in 2015, with the increase implemented over two years in 2015 and 2016. These fees are set following consultation with key 
stakeholders and having considered independent remuneration benchmarking advice. Mercury meets directors’ reasonable travel and 
other costs associated with Mercury business. The following people held office as directors during the year to 30 June 2020 and received 
the following remuneration during the period. The number of meetings and attendance rate by director during the year to 30 June 2020 
was as follows:

Risk Assurance & 
Audit Committee
4
Meetings 
Attended 

Fees$

People &  
Performance Committee 
3
Meetings  
Attended 

Fees$

Nominations 
Committee
1

Fees$

Meetings 
Attended 

Other15

Total16
18

Fees

Fees$

10,000
26,000 
(Chair) 

10,000

1

3

4

4

4

   419

   219

1

3

3

3

3

4,921

8,000

8,000
16,609 
(Chair) 

984

4,000

2,870

1

1

1

44,286

165,730

106,000

5,500

117,500

124,000

110,870
106,000

114,609

   219

119

2,750

43,583

46,000

37,530

7,854

8,250

932,578

Meetings 
Attended 

2

10

10

10

10

10
10

10

5

Director
No. of meetings

Board
10

Joan Withers  
(Chair)
Prue Flacks  
(Chair)18
Andrew Lark

James Miller

Fees$
44,286 
(Chair)17
159,825 
(Chair)
98,000

98,000

Keith Smith

98,000

Patrick Strange
Mike Taitoko

98,000
98,000

Scott St John

98,000

40,833

832,944

Hannah 
Hamling
Total

Note 15: 
Note 16: 
Note 17: 
Note 18: 

 James Miller and Hannah Hamling received a one-off payment for attendance at a temporary committee established during the reporting period.
Disclosure Committee attendance is not reported on as these occur as adhoc and on an as required basis.
Joan Withers’ fees cover all Committee meetings that she attended.
 Prue Flacks’ fees cover $135,714 as Chair and $24,111 in the capacity of director. Prue’s fee for the People & Performance Committee and the 
Nominations Committee reflect her participation in those committees as director between the period of 1 July 2019 to 27 September 2019. 
Following that period, Prue participated in committees in the capacity of Board Chair and she did not receive payment for those attendances in 
addition to her fees as Chair.
 Scott St John and Hannah Hamling attended some committee meetings as observers.

Note 19: 
For reference: Future Director Anna Lissaman was paid $15,000 in FY20.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
DIRECTORS’ DISCLOSURES.

INTERESTS REGISTER

Disclosure of Directors’ Interests 

Section 140(1) of the New Zealand Companies Act 1993 requires a director of a company to disclose certain interests.  
Under subsection (2) a director can make disclosure by giving a general notice in writing to the Company of a position held  
by a director in another named company or entity. The following are particulars included in the Company’s Interests Register  
as at 30 June 2020: 

Prue Flacks

Bank of New Zealand Limited

Chorus Limited

Director

Director 

Goodman (NZ) Limited and subsidiaries

Chair

Harpers Gold Limited and subsidiaries

Director/
Shareholder
Trustee

Queenstown Airport Corporation Limited

Chair2

Cornwall Park Trust Board

Hannah Hamling

Nil

Andy Lark

Group Lark

James Miller

NZX Limited

ACC

Nil

Chair

Chair

Deputy Chair

The New Zealand Refining Company Limited Director

ACC Board Investment Committee

St Cuthbert’s College Trust Board

Chair

Trustee2

Keith Smith

Enterprise Motor Group Limited  
and subsidiaries
H J Asmuss & Co Limited

Mobile Surgical Services Limited  
and subsidiaries
The Warehouse Group Limited and 
subsidiaries
Community Financial Services Limited

Chair

Chair

Chair

Deputy Chair

Director

Sir John Logan Campbell Residuary Estate

Trustee

Healthcare Holdings Limited and 
subsidiaries and associates
Advisory board of Tax Traders Limited

Anderson & O’Leary Limited

Tree Scape Limited

TILT Renewables Limited

Sky Network Television Limited

Westland Dairy Company Limited

Scott St John

Fisher & Paykel Healthcare  
Corporation Limited
Fonterra Co-operative Group Limited 

Chair

Member

Chair

Director

Shareholder

Director1

Director2

Director/
Shareholder
Director

Next Foundation (and associated vehicles)

Director

University of Auckland

Macleod Trust

St John Family Trust

Butland Medical Foundation

Chancellor

Trustee2

Trustee2

Trustee2

Patrick Strange

Chorus Limited

Auckland International Airport Limited

Essential Energy

Mike Taitoko 

Takiwa Limited

Auckland Tourism Events & Economic 
Development
Maratini Holdings Limited

Canvasland Holdings Limited

Waiora Consulting Limited

Toha Foundry Limited

Digital Economy & Digital Inclusion 
Ministerial Advisory Group

Chairman

Chair

Director2

Director/
Shareholder
Director

Director/
Shareholder
Director/
Shareholder
Director/
Shareholder
Director/
Shareholder
Member2

1.  Entries added by notices given by the directors during the year 

ended 30 June 2020.

2.  Entries removed by notices given by the directors during the year 

ended 30 June 2020.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
DIRECTORS’ DISCLOSURES. (CONTINUED)

Directors’ and Officers’ Indemnities 

Indemnities have been given to, and insurance has been effected for, directors and senior managers of the Group to cover  
acts or omissions of those persons in carrying out their duties and responsibilities as directors and senior managers. 

Disclosure of Directors’ Interests in Mercury Securities 

Directors disclosed the following relevant interests in Mercury securities as at 30 June 2020:

Director
Prue Flacks

Hannah Hamling

Andy Lark

James Miller

Keith Smith

Scott St John 

Patrick Strange

Mike Taitoko

Number of Shares in which  
a relevant interest is held
26,474

Number of Bonds in which  
a relevant interest is held
38,000

Change since 30 June 2019
3,000 Shares; 38,000 Bonds

–

3,300

40,320

30,156

45,000

39,160

2,200

–

–

–

–

–

–

–

–

–

–

2,288 Shares

32,000 Shares

25,000 Shares

–

Disclosure of Directors’ Interests in Securities Transactions 

Directors disclosed, pursuant to section 148 of the New Zealand Companies Act 1993, the following acquisitions  
and disposals of relevant interests in Mercury securities during the period to 30 June 2020:

Name of director
Prue Flacks

Date of acquisition/
disposal of relevant 
interest
11 July 2019

Prue Flacks

22 August 2019

Prue Flacks

22 November 2019

Scott St John 

21 November 2019

Scott St John 

2 March 2020

Keith Smith

13 March 2020

Patrick Strange

4 March 2020

Scott St John 

6 March 2020

Scott St John 

9 March 2020

Scott St John 

10 March 2020

Scott St John 

13 March 2020

Scott St John 

17 March 2020

Nature of relevant 
interest
Redemption of capital 
bonds
On market purchase of 
capital bonds
On market purchase  
of shares
On market purchase  
of shares
On market purchase  
of shares
On market purchase 
of shares by a relevant 
person – power to 
acquire or dispose of, or 
to control the acquisition 
or disposition of, or power 
to exercise, or to control 
the exercise of, a right to 
vote attached to shares
On market purchase  
of shares
On market purchase  
of shares
On market purchase  
of shares
On market purchase  
of shares
On market purchase  
of shares
On market purchase  
of shares

Consideration 
(NZD)
40,000.00

Securities in which a 
relevant interest was 
acquired/(disposed)
(40,000)

39,798.82

38,000

14,370.00

14,282.70

22,900.00

9,838.40

117,725.95

19,207.20

23,475.00

22,777.00

20,983.00

19,086.00

3,000

3,000

5,000

2,288

25,000

4,000

5,000

5,000

5,000

5,000

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
SECURITY HOLDER INFORMATION.

SHAREHOLDER INFORMATION

Twenty largest registered shareholders as at 30 June 20201

Distribution of shareholders and holdings as at 30 June 2020

Name
Her Majesty The Queen in Right of New Zealand 

HSBC Nominees (New Zealand) Limited

JP Morgan Chase Bank, N.A. NZ Branch-Segregated Clients ACCT

HSBC Nominees (New Zealand) Limited A/C State Street

Citibank Nominees (New Zealand) Limited

Mercury NZ Limited

Accident Compensation Corporation

Forsyth Barr Custodians Limited

HSBC Nominees A/C NZ Superannuation Fund Nominees Limited

National Nominees Limited

HSBC Custody Nominees (Australia) Limited

BNP Paribas Nominees (NZ) Limited

JBWere (NZ) Nominees Limited

New Zealand Depository Nominee Limited

BNP Paribas Nominees (NZ) Limited

FNZ Custodians Limited

Custodial Services Limited

Citicorp Nominees Pty Limited

Custodial Services Limited

BNP Paribas Nominees (NZ) Limited

Total

Number  
of shares
716,140,528

65,375,914

46,610,947

43,125,709

39,456,228

37,711,5843

26,322,539

16,761,503

15,179,433

11,102,819

10,499,005

10,030,805

9,495,620

9,028,729

8,182,226

8,069,095

7,047,024

6,295,444

6,128,744

4,610,786

% of shares2 

51.15

4.67

3.33

3.08

2.82

2.69

1.88

1.20

1.08

0.79

0.75

0.72

0.68

0.64

0.58

0.58

0.50

0.45

0.44

0.33

1,097,174,682

78.37

1.  As required by the NZX Listing Rules, New Zealand Central Securities Depository (NZCSD) holdings are included above  

and not detailed separately.

2.  Percentage calculated on the basis of Mercury having 1,400,012,517 ordinary shares on issue as at 30 June 2020,  

which included 37,711,584 ordinary shares held as treasury shares.

3.  Held as treasury shares.

Size of holding
1 to 1,000

1,001 to 5,000

5,001 to 10,000

10,001 to 100,000

100,001 and above 

Total

Number of  
shareholders
29,399

% of  
shareholders
37.54

38,767

6,444

3,602

111

78,323

49.5

8.23

4.6

0.14

100

Substantial product holders as at 30 June 2020

Her Majesty The Queen in Right of New Zealand

Class of Securities
Ordinary shares

Number of  
shares
20,281,887

89,955,593

47,320,390

74,192,758

1,168,261,889

1,400,012,517

Number of 
Securities  
in Substantial 
Holding
732,789,3181

Holding  
quantity %
1.45

6.43

3.38

5.3

83.45

100

Total Number of  
Securities in Class
1,400,012,5172

1.  This comprises (a) 716,140,528 shares held by the Crown on its own account; (b) 16,580,790 shares forming part of the New Zealand 

Superannuation Fund which are the property of the Crown; and (c) 68,000 shares held by Public Trust on trust for the Crown and certain iwi.
2.  As at 30 June 2020, Mercury had 1,400,012,517 ordinary shares on issue, which included 37,711,584 ordinary shares held as treasury shares.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
SECURITY HOLDER INFORMATION. (CONTINUED)

BONDHOLDER INFORMATION

Twenty largest registered bondholders as at 30 June 20201 

Distribution of bondholders and holdings as at 30 June 2020

Size of holding
1,001 to 5,000

5,001 to 10,000

10,001 to 100,000

100,001 and above 

Total

Number of capital 
bondholders
78

% of capital 
bondholders
4.67

275

1,214

105

1,672

16.45

72.61

6.28

100

Number of  
capital bonds
390,000

2,682,000

42,045,000

254,883,000

300,000,000

Holding  
quantity %
0.13

0.89

14.02

84.96

100

Name
Forsyth Barr Custodians Limited

JBWere (NZ) Nominees Limited

Custodial Services Limited

FNZ Custodians Limited 

Custodial Services Limited

Custodial Services Limited

Investment Custodial Services Limited

Forsyth Barr Custodians Limited

Custodial Services Limited

Generate Kiwisaver Public Trust Nominees Limited

Custodial Services Limited

National Nominees Limited

New Zealand Methodist Trust Association 

Best Farm Limited

Citibank Nominees (New Zealand) Limited

Custodial Services Limited

The Tindall Foundation Inc

Forsyth Barr Custodians Limited

Masfen Securities Limited

Sterling Holdings Limited

Total

Number of  
capital bonds
92,638,000

% of capital 
bonds2
30.88

35,869,000

15,564,000

14,913,000

13,297,000

10,583,000

7,896,000

6,302,000

5,154,000

5,000,000

4,904,000

4,187,000

3,155,000

2,900,000

2,815,000

2,717,000

1,800,000

1,455,000

1,200,000

1,175,000

11.96

5.19

4.97

4.43

3.53

2.63

2.10

1.72

1.67

1.63

1.40

1.05

0.97

0.94

0.91

0.60

0.49

0.40

0.39

233,524,000

77.84

1.  As required by the NZX Listing Rules, New Zealand Central Securities Depository (NZCSD) holdings are included above  

and not detailed separately.

2.  Percentage calculated on the basis of Mercury having 300,000,000 capital bonds on issue as at 30 June 2020.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
COMPANY DISCLOSURES.

STOCK EXCHANGE LISTINGS
Mercury NZ Limited (referred to in this section as “Mercury” or 
“the Company”) is listed on the New Zealand stock exchange 
and as an ASX Foreign Exempt Listing on the Australian stock 
exchange.

In New Zealand, Mercury is listed with a “non-standard” (NS) 
designation. This is due to particular provisions of Mercury’s 
Constitution, including the requirements regulating ownership 
and transfer of Ordinary Shares.

ASX approved a change in Mercury NZ Limited’s ASX 
admission category from an ASX Listing to an ASX Foreign 
Exempt Listing, effective from the commencement of trading 
on 19 February 2016.

The Company continues to have a full listing on the NZX Main 
Board, and the Company’s shares are still listed on the ASX. 
The Company is primarily regulated by the NZX, complies 
with the NZX Listing Rules, and is exempt from complying 
with most of the ASX Listing Rules (based on the principle of 
substituted compliance).

MERCURY NZ LIMITED
The following persons held office as directors of Mercury NZ 
Limited as at 30 June 2020: Prue Flacks, James Miller, Mike 
Taitoko, Keith Smith, Patrick Strange, Andy Lark, Scott St 
John, and Hannah Hamling. During the reporting period, Joan 
Withers ceased to hold office as director.1

.

SUBSIDIARY COMPANIES
The following persons held office as directors of subsidiaries of 
Mercury NZ Limited during FY20:

Company name

Bosco Connect Limited

Glo-Bug Limited

Kawerau Geothermal Limited

Mercury Energy Limited

Mercury SPV Limited

Mighty Geothermal Power 
International Limited

Directors
Fraser Whineray 2
Vincent Hawksworth
William Meek
Tony Nagel
Fraser Whineray 2
Vincent Hawksworth
William Meek
Tony Nagel
Fraser Whineray 2
Vincent Hawksworth
William Meek
Tony Nagel
Fraser Whineray 2
Vincent Hawksworth
William Meek
Tony Nagel
Fraser Whineray 2
Vincent Hawksworth
William Meek
Tony Nagel
Fraser Whineray2
Vincent Hawksworth
William Meek
Tony Nagel

Mighty Geothermal Power Limited Fraser Whineray 2

Mercury ESPP Limited

Vincent Hawksworth
William Meek
Tony Nagel
William Meek 
Tony Nagel 
Marlene Strawson

Company name

Mercury Geothermal Limited

Mercury LTI Limited

Ngatamariki Geothermal Limited

Rotokawa Generation Limited

Rotokawa Geothermal Limited

Rotokawa Joint Venture Limited 
(50%)

Special General Partner Limited

Directors
Fraser Whineray 2
Vincent Hawksworth
William Meek
Tony Nagel
Prue Flacks 
Mike Taitoko
Howard Thomas
Fraser Whineray 2
Vincent Hawksworth
William Meek
Tony Nagel
William Meek 
Nicholas Clarke 
Michael Stevens
Fraser Whineray 2
Vincent Hawksworth
William Meek
Tony Nagel
Michael Stevens
Aroha Campbell
Nicholas Clarke
Mana Newton
Natasha Strong2
Garth Landers
Mark Thompson
Michael Stevens
Paul Robert Ware
Fraser Whineray2
Vincent Hawksworth
William Meek
Tony Nagel

Company name

Mighty River Power Limited

Blockchain Energy Limited

Mercury Solar Limited

What Power Crisis (2016) Limited

Mercury Drive Limited

Directors
Fraser Whineray 2
Vincent Hawksworth
William Meek
Tony Nagel
Fraser Whineray 2
Vincent Hawksworth
William Meek
Tony Nagel
Fraser Whineray 2
Vincent Hawksworth
William Meek
Tony Nagel
Fraser Whineray 2
Vincent Hawksworth
William Meek
Tony Nagel
Julia Jack
Fraser Whineray 2
William Meek 2
Tony Nagel 2

1.  Joan Withers retired as a director of Mercury NZ Limited  

on 27 September 2019.

2.  Directors who have resigned during FY20.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
OTHER DISCLOSURES.

WAIVERS FROM THE NEW ZEALAND AND 
AUSTRALIAN STOCK EXCHANGES

NZX
Mercury NZ Limited (referred to in this section as “Mercury” 
or “the Company”) transitioned to the new NZX Listing Rules 
dated 1 January 2019 on 17 April 2019, and relied on the class 
waivers and rulings granted by NZX Regulation on 19 November 
2018 in relation to the transition. In advance of the expiry of the 
transitional class waivers and rulings on 30 June 2020, on 19 
May 2020 NZX Regulation granted the Company waivers in 
respect of NZX Listing Rules 8.1.5 and 8.1.6(b). These waivers 
permit Mercury’s Constitution (“Constitution”) to contain 
provisions allowing:

•  the Crown and Mercury to enforce the 10% limit; and
•  Mercury to suspend dividend and voting rights attached to 
Mercury ordinary shares where the 10% limit is breached.

ASX
ASX has granted the Company waivers in respect of the ASX 
Listing Rules to allow the Constitution to contain provisions 
reflecting the ownership restrictions imposed by the New 
Zealand Public Finance Act 1989 (“Public Finance Act”) and 
to allow the Crown to cancel the sale of shares to applicants 
who acquire shares under the General Offer and are not New 
Zealand applicants.

The majority of the waivers that ASX previously granted to 
Mercury are no longer relevant following the change of the 
Company’s admission category to an ASX Foreign Exempt 
Listing in February 2016. The waivers from ASX Listing Rules 
8.10 and 8.11 continue to apply. These waivers permit the 
Constitution to contain provisions:

•  allowing the Crown and Mercury to enforce the 10% limit; 

and

•  enabling Mercury to prevent shareholders who acquired 
shares under the General Offer and are not New Zealand 
applicants from transferring those shares and to enable 
Mercury to sell those shares.

INFORMATION ABOUT MERCURY NZ 
LIMITED ORDINARY SHARES
This statement sets out information about the rights, 
privileges, conditions and limitations, including restrictions on 
transfer, that attach to shares in Mercury.

A summary of the restrictions on the ownership of shares 
under the Public Finance Act and the Constitution is set 
out below. If Mercury issues any other class of shares, or 
other securities which confer voting rights, in the future, the 
restrictions summarised below would also apply to those other 
classes of shares or voting securities.

Rights and privileges
Under the Constitution and the New Zealand Companies Act 
1993 (“Companies Act”), each share gives the holder a right to:

•  attend and vote at a meeting of shareholders, including the 
right to cast one vote per share on a poll on any resolution, 
such as a resolution to:

 – appoint or remove a director;
 – adopt, revoke or alter the Constitution;
 – approve a major transaction (as that term is defined in 

the Companies Act);

 – approve the amalgamation of the Company under 

section 221 of the Companies Act; or

 – place the Company in liquidation;

•  receive an equal share in any distribution, including 

dividends, if any, authorised by the Board and declared and 
paid by the Company in respect of that share;

•  receive an equal share with other shareholders in the 
distribution of surplus assets in any liquidation of the 
Company;

•  be sent certain information, including notices of meeting 
and the Company reports sent to shareholders generally; 
and

•  exercise the other rights conferred upon a shareholder by 

the Companies Act and the Constitution.

Restrictions on ownership and transfer
The Public Finance Act includes restrictions on the 
ownership of certain types of securities issued by Mercury 
and consequences for breaching those restrictions. The 
Constitution incorporates these restrictions and mechanisms 
for monitoring and enforcing them.

51% Holding
The Crown must hold at least 51% of the shares on issue.

The Company must not issue, acquire or redeem any shares 
if such issue, acquisition or redemption would result in the 
Crown falling below this 51% holding.

10% Limit
No person (other than the Crown) may have a ‘relevant 
interest’ in more than 10% of the shares on issue (“10% 
Limit”).

The Company must not issue, acquire or redeem any shares 
if it has actual knowledge that such issue, acquisition or 
redemption will result in any person other than the Crown 
exceeding the 10% Limit.

Ascertaining whether a breach has occurred
If a holder of shares breaches the 10% Limit or knows or 
believes that a person who has a relevant interest in shares 
held by that holder may have a relevant interest in shares in 
breach of the 10% Limit, the holder must notify Mercury of the 
breach or potential breach.

Mercury may require a holder of shares to provide it with a 
statutory declaration if the Board knows or believes that a 
person is, or is likely to be, in breach of the 10% Limit. That 
statutory declaration is required to include, where applicable, 
details of all persons who have a relevant interest in any shares 
held by that holder.

Determining whether a breach has occurred
Mercury has the power to determine whether a breach of the 
10% Limit has occurred and, if so, to enforce the 10% Limit. In 
broad terms, if:

•  Mercury considers that a person may be in breach of the 

10% Limit; or

•  a holder of shares fails to lodge a statutory declaration when 
required to do so or lodges a declaration that has not been 
completed to the reasonable satisfaction of the Company,

then Mercury is required to determine whether or not the 10% 
Limit has been breached and, if so, whether or not that breach 
was inadvertent. Mercury must give the affected shareholder 
the opportunity to make representations to the Company 
before it makes a determination on these matters.

Effect of exceeding the 10% Limit

A person who is in breach of the 10% Limit must:

•  comply with any notice received from Mercury requiring 

them to dispose of shares or their relevant interest in shares, 
or take any other steps that are specified in the notice, for 
the purpose of remedying the breach; and

•  ensure that they are no longer in breach within 60 days 
after the date on which they became aware, or ought 
to have been aware, of the breach. If the breach is not 
remedied within that timeframe, Mercury may arrange for 
the sale of the relevant number of shares on behalf of the 
relevant holder. In those circumstances, the Company will 
pay the net proceeds of sale, after the deduction of any 
other costs incurred by the Company in connection with the 
sale (including brokerage and the costs of investigating the 
breach of the 10% Limit), to the relevant holder as soon as 
practicable after the sale has been completed.

If a relevant interest is held in any shares in breach of the 10% 
Limit then, for so long as that breach continues:

•  no votes may be cast in respect of any of the shares in 

which a relevant interest is held in excess of the 10% Limit; 
and

•  the registered holder(s) of shares in which a relevant interest 
is held in breach of the 10% Limit will not be entitled to 
receive, in respect of the shares in which a relevant interest 
is held in excess of the 10% Limit, any dividend or other 
distribution authorised by the Board in respect of the shares.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
OTHER DISCLOSURES. (CONTINUED)

However, if the Board determines that a breach of the 10% 
Limit was not inadvertent, or that it does not have sufficient 
information to determine that the breach was not inadvertent, 
the registered holder may not exercise the votes attached 
to, and will not be entitled to receive any dividends or other 
distributions in respect of, any of its shares.

An exercise of a voting right attached to a share held in breach 
of the 10% Limit must be disregarded in counting the votes 
concerned. However, a resolution passed at a meeting is not 
invalid where votes exercised in breach of the voting restriction 
were counted by the Company in good faith and without 
knowledge of the breach.

The Board may refuse to register a transfer of shares if it 
knows or believes that the transfer will result in a breach of 
the 10% Limit or where the transferee has failed to lodge a 
statutory declaration requested from it by the Board within the 
prescribed timeframe.

Crown directions
The Crown has the power to direct the Board to exercise 
certain of the powers conferred on it under the Constitution 
(for example, where the Crown suspects that the 10% Limit 
has been breached but the Board has not taken steps to 
investigate the suspected breach).

Trustee corporations and nominee companies
Trustee corporations and nominee companies (that hold 
securities on behalf of a large number of separate underlying 
beneficial holders) are exempt from the 10% Limit provided 
that certain conditions are satisfied.

Share cancellation
In certain circumstances, shares could be cancelled by the 
Company through a reduction of capital, share buy-back or 
other form of capital reconstruction approved by the Board 
and, where applicable, the shareholders.

Sale of less than a Minimum Holding
Mercury may, at any time, give notice to a shareholder 
holding less than a Minimum Holding of shares (as that 
term is defined in the NZX Listing Rules) that if, at the end of 
three months after the date the notice is given, shares then 
registered in the name of the holder are less than a Minimum 
Holding, Mercury may sell those shares on market (including 
through a broker acting on Mercury’s behalf), and the holder 
is deemed to have authorised Mercury to act on behalf of the 
holder and to sign all necessary documents relating to the 
sale.

For the purposes of the sale and of Rule 5.12 of the ASX 
Settlement Operating Rules, where the Company has given a 
notice that complies with Rule 5.12.2 of the ASX Settlement 
Operating Rules, the Company may, after the end of the time 
specified in the notice, initiate a Holding Adjustment to move 
the relevant shares from that CHESS Holding to an Issuer 
Sponsored Holding (as those terms are defined in the ASX 
Settlement Operating Rules) or to take any other action the 
Company considers necessary or desirable to effect the sale.

The proceeds of the sale of any shares sold for being less than 
a Minimum Holding will be applied as follows:

•  First, in payment of any reasonable sale expenses.
•  Second, in satisfaction of any unpaid calls or any other 

amounts owing to the Company in respect of the shares.
•  The residue, if any, must be paid to the person who was the 
holder immediately before the sale or his or her executors, 
administrators or assigns.

Cancellation of sale of shares
The Crown may cancel the sale of shares to an applicant 
under the offer of shares by the Crown (“the Offer”) in the 
Mighty River Power Share Offer Investment Statement and 
Prospectus if the applicant misrepresented its entitlement 
to be allocated shares under the Offer as a ‘New Zealand 
Applicant’ (as that term is defined in the Share Offer 
Investment Statement and Prospectus). If the Crown cancels a 
sale of shares on those grounds:

•  Mercury must sell shares held by that applicant, up to the 
number of shares sold to it under the Offer, irrespective of 
whether or not those shares were acquired by the applicant 
under the Offer (unless the applicant had previously sold, 
transferred or disposed of all of its shares to a person who 
was not an associated person of the applicant); and
•  the applicant will receive from the sale the lesser of:

 – the sale price for the shares less the costs incurred by 

the Crown and the Company; and

 – the aggregate price paid for the shares less those 

costs, with any excess amount being payable to the 
Crown.

If an applicant who misrepresented their entitlement to shares 
has sold, transferred or otherwise disposed of shares to an 
associated person, then the power of sale will extend to shares 
held by that associated person, up to the number of shares 
transferred, sold or otherwise disposed of to the associated 
person by the relevant applicant.

DONATIONS
Donations of $99,500 were made by the Group during the 
year ended 30 June 2020 ($101,294 during the year ended 
30 June 2019). Under Mercury’s Delegations Policy, donations 
to political parties are prohibited.

OTHER DISCLOSURES
Mercury NZ Limited is incorporated in New Zealand and is not 
subject to Chapters 6, 6A, 6B and 6C of the Corporations Act 
2001 (Australia). Mercury will not acquire any classified assets 
in circumstances in which the ASX Listing Rules would require 
the issue of restricted securities, without the written consent 
of ASX.

On 18 August 2020 the Board declared a fully imputed final 
dividend of 9.4 cents per share to all shareholders who are on 
the Company’s share register at 5.00pm on the record date 
of 15 September 2020. The dividends will be imputed at a 
corporate tax rate of 28%, which amounts to an imputation 
credit of 3.66 cents per share for the final dividend. Mercury 
will also pay a supplementary dividend of 1.66 cents per share 

relating to the final dividend to non-resident shareholders. 
The Company will receive from the New Zealand Inland 
Revenue Department a tax credit equivalent to supplementary 
dividends.

These dividends, together with the interim dividend of $87.1 
million (6.4 cents per share) paid to shareholders on 1 April 
2020, brings the total declared dividends to $215.1 million (or 
15.8 cents per share).

As at the date of this annual report, the Company has a 
S&P’s BBB+ rating with a stable outlook. The Company 
benefits from a one-notch uplift due to the Crown’s majority 
ownership.

Mercury’s Net Tangible Assets per Share (excluding treasury 
stock) as at 30 June 2020 was $2.69, compared with $2.54  
at 30 June 2019.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
 
SUSTAINABILITY INDICES.

GRI INDEX STANDARD CORE REPORTING

GRI standard

Disclosure title 

Location

Comments

GRI standard

Disclosure title 

Location

Comments

GENERAL DISCLOSURES

ORGANISATIONAL PROFILE

GRI 102 General disclosures 2020

102-1

102-2

102-3

102-4

102-5

102-6

102-7

102-8

102-9

102-10

102-11

102-12

102-13

102-14

102-16

102-18

102-40

102-42

Name of the organisation

Front Cover

Activities, brands, products  
and services
Location of headquarters

Who We Are pp4-8

Directory p97

Location of operations

Who We Are pp4-8

Ownership and legal form

Company Disclosures p89

Markets served

Who We Are pp4-8

Scale of the organization

Who We Are pp4-8

Information on employees  
and other workers
Supply chain

Significant changes to the 
organisation and its supply chain
Precautionary principle or 
approach
External initiatives

Membership of associations

Statement from senior  
decision-maker
Values, principles, standards,  
and norms of behavior 
Governance structure 

List of stakeholder groups

Identifying and selecting 
stakeholders

Who We Are pp4-8

The World Around Us pp14-17

The World Around Us pp14-17

Company website – Corporate Governance 
Statement
The World Around Us pp14-17, Engaging With 
Our Stakeholders p18, Close Connections Help 
Vulnerable Customers p24, The World’s Best 
Catchment p27
Engaging With Our Stakeholders p19

Chair & Chief Executive Update pp9-12

Company website – The Mercury Code

Company website – Corporate Governance 
Statement
Engaging With Our Stakeholders pp18-19

Engaging With Our Stakeholders pp18-19

102-43

102-44

102-45

102-46

102-47

102-48

102-49

102-50

102-51

102-52

102-53

102-54

102-55

102-56

Approach to stakeholder 
engagement
Key topics and concerns raised

Entities included in the 
consolidated Consolidated 
Financial statements
Defining report content and  
topic Boundaries
List of material topics

Restatements of information

Engaging With Our Stakeholders pp18-19

Engaging With Our Stakeholders pp18-19

Notes To The Consolidated Financial 
Statements p52

About This Report p2,  
Pulling It All Together p21
Pulling It All Together p21

Changes in reporting

Reporting period 

Date of most recent report 

Reporting cycle

Front Cover

Front Cover

Front Cover

Contact point for questions 
regarding the report 
Claims of reporting in accordance 
with the GRI Standards
GRI content index

External assurance 

About This Report p2, 
Directory p97
About This Report p2

GRI Content Index p92

There are no 
restatements of 
information in the 
2020 reporting period.
Mercury continues to 
use both GRI and  
reporting frameworks.

Our 2020 report has 
not been externally 
assured.

MANAGEMENT APPROACH

GRI 103 General disclosures 2020

103-1

Explanation of the material  
topic and its Boundary

Pulling It All Together p21

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
SUSTAINABILITY INDICES. (CONTINUED)

SPECIFIC STANDARD DISCLOSURES

Material topics

Description

Location

Boundaries

Material topics

Description

Location

Boundaries

GRI 200 Economic standard series

GRI 103

Management approach

Our Business Model pp6-8

GRI 201 Economic performance

GRI 201

Management approach

Our Business Model pp6-8

201-1

202-1

Direct economic value generated 
and distributed
Consolidated Financial 
implications and other risks and 
opportunities due to climate 
change
GRI 300 Environmental standards series 

Our Business Model pp6-8

Strategy p34

Within the 
organisation

Within the 
organisation
Within and outside  
the organisation
Within and outside  
the organisation

GRI 103

Management approach

Our Business Model p6, Our FY20 
Outcomes & Strategic Goals pp7-8

Within the 
organisation

GRI 303 Water

303-1

GRI 305 Emissions

305-1

305-2

305-3

305-4

Water withdrawal by source

Mercury does not “withdraw” water for 
generation. 43,426 Mm3 were used for 
hydro generation in FY20. 

Within and outside  
the organisation

Direct (Scope 1) GHG emissions Metrics & Targets p35

Energy indirect (Scope 2)  
GHG emissions
Other indirect (Scope 3)  
GHG emissions
Emissions intensity

Metrics & Targets p35

Metrics & Targets p35

Metrics & Targets p35

Within and outside  
the organisation
Within and outside  
the organisation
Within and outside  
the organisation
Within and outside  
the organisation

GRI 307 Environmental compliance

307-1

Non-compliance with 
environmental laws  
and regulations

Mercury received two infringement notices for 
minor breaches of consent conditions at its 
Turitea construction site in January 2020.

Within and outside  
the organisation

GRI 400 Social standards series 

GRI 103

GRI 401 Employment

401-1

401-2

401-3

GRI 403 Occupational health  
and safety

403-1

403-2

GRI 404 Training and education

404-2

GRI 405 Diversity and equal 
opportunities

405-1

GRI 413 Local communities

413-1

413-2

Management approach

Our Business Model pp6-8

Within the organisation

New employee hires and  
employee turnover

Mercury hired 123 new employees and the 
voluntary turnover rate was 12%

Within the organisation 

Benefits provided to full-time 
employees that are not provided to 
temporary or part-time employees

Company website – Life at Mercury

Within the organisation

Parental Leave

Company website – Life at Mercury

Within the organisation

Workers representation in formal 
joint management-worker health 
and safety committees

Types of injury or rate of injury, 
occupational diseases, lost days, 
and absenteeism, and number of 
work related fatalities

Workers representatives hold a range of 
positions on health and safety committees, 
including joint chair of the geothermal 
committee

Our Business Model pp6-8, 
Chair and Chief Executives Update p12

Within the organisation 

Within the organisation

Programmes for upgrading 
employee skills and transition 
assistance programmes

Pillar Summary p37,  
Our Skills Pledge p38

Within the organisation

Diversity of governance bodies  
and employees

Inclusion & Diversity pp77-78

Within the organisation

Operations with local community 
engagement, impact assessments 
and development programs

Operations with significant actual 
and potential negative impacts on 
local communities

Close Connections Help Vulnerable Customers 
pp24-26, The World’s Best Catchment 
pp27-29, Living The Leadership Journey 
pp36-38
Close Connections Help Vulnerable Customers 
pp24-26, The World’s Best Catchment 
pp27-29, Living The Leadership Journey 
pp36-38

Within and outside  
the organisation

Within and outside  
the organisation

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
SUSTAINABILITY INDICES. (CONTINUED)

SECTOR SPECIFIC: UTILITIES

TASK FORCE ON CLIMATE-RELATED FINANCIAL DISCLOSURES (TCFD) INDEX

Material Topics

Description

Location

GRI 103

Management approach

Our Business Model pp6-8

EU1

EU2

EU3

EU5

EU10

GRI 103

EU18

GRI 103

EU27

GRI 103

EU30

Installed capacity

Net energy output

Our Business Model pp6-8

Our Business Model pp6-8

Number of customer connections Our Business Model pp6-8

Allocation of CO2e allowances

Metrics & Targets p35

Planned capacity against  
projected electricity demand  
over the long-term

Dealing With Shifting Winds p39

Management approach

Our Business Model pp6-8

Percentage of contractor and 
subcontractor employees that have 
undergone relevant health and 
safety training

Our Skills Pledge p38

Management approach

Our Business Model pp6-8

Number of disconnections  
for non-payment

The World Around Us p15, Close Connections Help 
Vulnerable Customers pp24-26

Management approach

Our Business Model p6

Average plant availability by energy 
source and by regulation regime

Hydro 88%, Geothermal 94%

Boundaries

Within the organisation

Within the organisation

Within the organisation

Within and outside  
the organisation

Within and outside the 
organisation

Within and outside  
the organisation

Within the organisation

Within and outside  
the organisation

Within the organisation

Outside the organisation

Within the organisation

Within the organisation

Issue

TCFD Recommendation

Location

Governance

Board oversight of climate-related 
risks and opportunities

Annual Report 2020 – Preparing for Climate Change 
Annual Report 2020 – Governance at Mercury

Page No.

pp33-34, 72-78

Strategy

Management’s role in assessing 
and managing climate-related 
risks and opportunities

Climate-related risks and 
opportunities identified over the 
short, medium and long-term

The impact of climate-related risks 
and opportunities on business 
strategy and financial planning

Strategy resilience taking into 
consideration climate-related 
scenarios, including a 2°C or  
lower scenario

Annual Report 2020 – Preparing for Climate Change 
Annual Report 2020 – Governance at Mercury

pp33-34, 72-78

Annual Report 2020 – Strategy

Annual Report 2020 – Strategy

pp34

pp34

Annual Report 2020 – Preparing for Climate Change

pp33

Risk Management Processes for identifying and 
assessing climate-related risks

Annual Report 2020 – Strategy 
Annual Report 2020 – Governance at Mercury

Process for managing  
climate-related risks

Integration of the processes for 
identifying and assessing 
climate-related risks into overall 
risk management

Metrics and targets used to assess 
climate-related risks and 
opportunities in line with strategy 
and risk management process

Annual Report 2020 – Strategy 
Annual Report 2020 – Governance at Mercury

Annual Report 2020 – Strategy 
Annual Report 2020 – Governance at Mercury

Annual Report 2020 – Metrics & Targets, Company 
website 2019 Emissions Inventory Report

Scope 1, 2 and 3 GHG emissions 
and any related risk

Annual Report 2020 – Metrics & Targets, Company 
website 2019 Emissions Inventory Report

Metrics and  
Targets

pp33-34, 72-78

pp33-34, 72-78

pp33-34, 72-78

p35

p35

Targets used to manage 
climate-related risks and 
opportunites and performance 
against targets

Annual Report 2020 – Preparing for Climate Change, 
Metrics & Targets. Company website 2019 Emissions 
Inventory Report

p33, p35

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
INFORMATION FOR SHAREHOLDERS.

Shareholder enquiries
Changes in address, dividend payment details and investment 
portfolios can be viewed and updated online:  
investorcentre.com/nz. You will need your CSN and FIN 
numbers to access this service.

Enquiries may be addressed to the Share Registrar (see 
Directory for contact details).

Investor information
Our website at mercury.co.nz is an excellent source of 
information about what’s happening within the company.

Our Investor Centre allows you to view all regular investor 
communications, information on our latest operating and 
financial results, dividend payments, news and share price 
history.

Electronic shareholder communication
It is quick and easy to make the change to receiving your 
reports electronically. This can be done either:

•  Online at investorcentre.com/nz by using your CSN and FIN 
numbers (when you log in for the first time). Select ‘View 
Portfolio’ and log in. Then select ‘Update My Details’ and 
select ‘Communication Options’; or

•  By contacting Computershare Investor Services Limited  

(see Directory for contact details).

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
GLOSSARY.

Mercury presents certain non-GAAP (Generally Accepted Accounting Practice) financial information throughout the annual 
report. This is provided where we believe it will provide greater clarity to users of the information. It also provides consistency 
across reporting periods and comparability amongst industry peers.

Brand Strength
This measures a brand’s equity and perception in the market based on 
a monthly survey. It is a constructed score derived from 5 pillars that are 
weighted to reflect their impact on overall Brand Strength. It is reported on 
a 3-month rolling average and reflects Mercury’s Brand Strength amongst 
customers and non-customers.

CO2E
Carbon dioxide equivalents (a measure of total greenhouse gases).

Churn
Rolling average of Mercury Brand customers that change energy providers.

CPS
Cents per share.

EBITDAF (or Operating Earnings)
Earnings before net interest expense, tax expense, depreciation, amortisation, 
change in the fair value of financial instruments, gain on sale and 
impairments.

Energy Margin
Sales from electricity generation and sales to customers and derivatives, less 
energy costs, line charges, other direct costs of sales, and third-party metering.

Free Cash Flow
Net cash flow from operating activities less stay-in business capital 
expenditure.

Generation-weighted Average Price (GWAP)
Generation Weighted Average Price of electricity generated and sold to the 
wholesale electricity market.

Operating Costs
Represents employee compensation and benefits, maintenance expenses and 
other expenses.

Growth Capital Expenditure (CAPEX)
Capital expenditure incurred by the company to create new assets and 
revenue.

GWh
Gigawatt hour. One gigawatt hour is equal to one million kilowatt hours.

Load-weighted Average Price (LWAP)
Load Weighted Average Price of electricity purchased from the wholesale 
electricity market.

MWh
Megawatt hour. One megawatt hour is equal to one thousand kilowatt hours.

Net Debt
Total borrowings (both current and non-current) less cash and cash 
equivalents.

Net Promoter Score (NPS)
This is the difference between the percentage of Promoters (who rate their 
likelihood to recommend Mercury 9-10 on a scale of 0-10) and Detractors 
(who rate their likelihood to recommend Mercury 0-6 on a scale of 0-10). 
Results are reported on a 3-month rolling average. The result reported here 
is NPS within our target customer segments where we recorded a 2-point 
increase above target for FY20. In FY20 we changed our reporting to a new 
survey measuring NPS through a sample of approximately 2000 customers 
per month.

Other Income
Earnings of associates and other revenue, less direct costs of other revenue.

Stay-in-Business (SIB) Capital Expenditure (CAPEX)
Capital expenditure incurred by the company to maintain its assets in good 
working order.

Total Recordable Injury Frequency Rate (TRIFR)
A record of the number of reported medical treatment, restricted work, lost 
time and serious harm injuries per 200,000 hours, including employees and 
on-site contractors.

Total Shareholder Return (TSR)
The financial gain or loss resulting from the change in share price plus any 
dividends paid expressed as a percentage of the initial share price.

Underlying Earnings After Tax
Profit for the year after removing one-off and/or infrequently occurring events 
(exceeding $10 million of profit before tax, which represents material items), 
impairments, any change in the fair value of derivative financial instruments 
and gain on sale, all net of tax expense.

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
DIRECTORY.

Board of Directors 
Prue Flacks, Chair 
Hannah Hamling 
Andy Lark 
James Miller 
Keith Smith 
Scott St John 
Patrick Strange 
Mike Taitoko

Executive Team 
Vince Hawksworth, 
Chief Executive

Kevin Angland, 
General Manager Retail & Digital

Nick Clarke, 
General Manager Geothermal & Safety

Lucie Drummond, 
Risk Assurance Officer

Phil Gibson, 
General Manager Hydro & Wholesale

Julia Jack, 
Chief Marketing Officer

William Meek, 
Chief Financial Officer

Tony Nagel, 
General Manager Corporate Affairs

Marlene Strawson, 
General Manager People & Performance

Company Secretary 
Howard Thomas

Investor Relations & Sustainability Enquiries
Tim Thompson, 
Head of Treasury & Investor Relations 

Mercury NZ Limited 
P O Box 90399 
Auckland 1142 
New Zealand 

Phone: +64 27 517 3470 
Email: investor@mercury.co.nz

Registered Office in New Zealand 
33 Broadway, Newmarket, Auckland 1023

Registered Office in Australia 
c/– TMF Corporate Services (Australia) Pty Limited 
Level 16, 201 Elizabeth Street 
Sydney, NSW 2000 

Phone: +61 2 8988 5800

Legal Advisors 
Chapman Tripp 
Level 34 
PwC Tower at Commercial Bay 
15 Customs Street West 
Auckland 1010 
PO Box 2206 
Auckland 1140

Phone: +64 9 357 9000

Bankers 
ANZ Bank 
ASB Bank 
Bank of New Zealand 
China Construction Bank
Mitsubishi UFJ Financial Group
Mizuho Bank
Westpac

Credit Rating (re-affirmed December 2019)
Long term: BBB+
Outlook: Stable

Share Registrar – New Zealand 
Computershare Investor Services Limited 
Level 2, 159 Hurstmere Road, Takapuna,  
Auckland 0622 
Private Bag 92119 
Auckland 1142, New Zealand 

Phone: +64 9 488 8777 
Email: enquiry@computershare.co.nz 
Web: www.investorcentre.com/nz

Share Registrar – Australia 
Computershare Investor Services Pty Limited 
Yarra Falls, 452 Johnston Street, Abbotsford, VIC 
3067 
GPO Box 3329, Melbourne, VIC 3001, Australia 

Phone: 1 800 501 366 (within Australia) 
Phone: +61 3 9415 4083 (outside Australia) 
Email: enquiry@computershare.co.nz

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MERCURY ANNUAL REPORT 2020 
 
 
 
 
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MERCURY ANNUAL REPORT 2020