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Meridian Energy investor day presentation

Investor Presentation19 November 2017MELUtilities

PG 1

Meridian Energy investor day presentation

20 November 2017


Attached is a presentation Meridian Energy is making at its investor day today.



ENDS

Mark Binns

Chief Executive

Meridian Energy Limited


For investor relations queries, please contact:

Owen Hackston

Investor Relations Manager

021 246 4772

For media queries, please contact:

Polly Atkins

External Communications Specialist

021 174 1715

MERIDIAN ENERGY LIMITED MANAGEMENT PRESENTATION
2017 INVESTOR DAY.

2
WELCOME AND GOODBYE. MARK BINNS

.

Meridian Energy Limited Investor Day November 2017

Meridian Energy Limited Investor Day November 2017
3

INTRODUCTION. NEAL BARCLAY

.

Meridian Energy Limited Investor Day November 2017
4

Today.

Neal Barclay CEO Designate Our customers

Mike Roan Wholesale Markets Manager Wholesale markets

Guy Waipara General Manager Markets & Production Managing our portfolio

Richard Griffiths Strategic Asset Manager Strategic asset management

Mat Bayliss Asset Maintenance Manager Operational maintenance

Jon Spiller Transmission Manager Transmission

Geoffry Sams Transmission Specialist Transmission

Grant Telfar Strategic Advisor Energy efficiency

Dr Jen Purdie Portfolio and Fuels Advisor Climate variability and change

Chris Moller Chair

Paul Chambers CFO

Gillian Blythe Strategy Manager

Janine Crossley Treasury Manager

Owen Hackston Investor Relations Manager

Also attending

Meridian Energy Limited Investor Day November 2017
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OUR CUSTOMERS. NEAL BARCLAY

.

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Historical earnings growth •


Source of earnings growth in the low

demand growth New Zealand market

Vertical integration



Provides wholesale market hedge against

spot market variability



Insulates earnings against unexpected

shocks in the wholesale market

Value of our customers.

$21M

$39M

$64M

$74M

$75M

2013 2014 2015 2016 2017

Financial Year ended 30 June

RETAIL SEGMENT PROFITABILITY

Source: Meridian’s FY17 segment disclosures with restated FY13-FY15 comparatives

Meridian Energy Limited Investor Day November 2017
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Value of our customers.

High

Income

Strong

free cash

flow

Low

capital

needs

High free

cash flow

payout

Continued

cost

discipline

Progressive

ordinary DPS

Capital

manage-

ment

Potential

Growth

Customer

growth in

NZ

Customer

platform

review

Medium

term new

generation

Customer

growth in

Australia

Powershop

franchise

into the

UK/Europe

Long term

sustainable

business

Sources of shareholder value

Meridian Energy Limited Investor Day November 2017
8

Customer brand strength.

High level of awareness relative to market share, authentically sustainable

Source: Evaluating Brand Performance December 2016 (Meridian – Clarity Insight)

24%
15%

19%

7%

35%

FY2017 NZ RETAIL SALES EXCL. TIWAI

Residential

Small/medium business

Agricultural

Corporate/large business Industrial

Customer growth.

Meridian Energy Limited Investor Day November 2017

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Source: Meridian



High residential awareness, underweight

residential position



Additional load from back-to-back agreements



Growth aspirations in all segments including

commerical solar



Examining synergies between Meridian and

Powershop platforms



More integrated go-to-market plan for two brands



Churn improvement remains a focus

7%

12%

7%

12%

22%

13%

Meridian Powershop Industry Meridian Powershop Industry

%

ICP CHURN

32%

25%

6%

37%

FY2017 NATIONAL CONSUMPTION

Residential Commercial Agriculture/ Forestry/ Fishing Industrial

Source: Ministry of Business, Employment & Innovation

MOVE-IN SWITCH

TRADER SWITCH

Source:

Electricity

Authority

Meridian Energy Limited Investor Day November 2017
10



Aspiration to significantly grow Australian

customer base



Needs to be backed by more generation



PPA process is well advanced



Direct generation investment possible

under the right commerical terms



Planning dual-fuel offer into Victoria

Australian scale.

Source: Meridian

13,426

48,208

77,970

100,524

2014 2015 2016 2017

Financial Year ended 30 June

AUSTRALIAN CUSTOMERS

Powershop UK.
Meridian Energy Limited Investor Day November 2017

11



Powershop platform and brand

franchised to nPower



14,000 nPower ICP’s through energy only

soft launch



Dual fuel functionality by January 2018



White label offers launched



Customer uptake dependent on nPower’s

sales and marketing



Exploring mainland Europe opportunities

with nPower’s parent company, Innogy

Meridian Energy Limited Investor Day November 2017
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Systematic approach •


Significant review and analysis of new

technology and customer changes



Selective scope



Test and trial approach, quick start and

stop (if needed), low investment



Global insights from three ‘natural labs’

Our approach to innovation.

Innovation in NZ.
Meridian Energy Limited Investor Day November 2017

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Separate software development business

with international focus



Significant Meridian digital investment

creating a quality customer experience



Powershop is a true native digital

business, well placed for transformation



SmartHome and Smart Tariffs recent

examples to go to market

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A more disruptive market than New Zealand •


Powershop is well positioned



Powershop helping customer participation

in neighbourhood generation and community energy projects



Both through tariff redistribution



And initiatives incentivising customers to

reduce consumption

Innovation in Australia.

The political scene.
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New Zealand •


Positive on the new Government’s proposals,

plenty of detail to engage on



Conversion of the Government car fleet to

electric by 2025/26 will strengthen EV takeup



Meridian is highly supportive of an

Independent Climate Commission



Case for fairer transmission charging remains

compelling



Greater focus on water quality



Resource rentals for water is complex, we are

supportive of a holistic, equitable approach



Retail pricing could benefit from addressing

misdirected low user charges

26.9

27.8

28.6

28.1

28.8

Mar-13 Mar-14 Mar-15 Mar-16 Mar-17

c/kWh

AVERAGE RESIDENTIAL ELECTRICITY COST

Energy Lines

+1%


+7%

+3%


+4%

+0%


+7%

-3%


+0%

+1%


+4%

Source: Ministry of Business, Innovation & Employment

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Australia •


Market is slow to commit to new renewables

due to the lack of coherent energy policy



Electricity is highly politicised, with significant

potential developments in the near term:



VIC Government reponse to Thwaites Review

on re-regulation



COAG Energy Council meeting on the NEG and

AER investigation into NSW generator bidding



AGL response to Federal Government on

Liddell power station



ACCC’s continuing enquiry into electricity

prices



Details on the VIC Government’s renewable

energy auction

The political scene.

Image: Australian Prime Minister Malcolm Turnbull (L) and Leader of the Australian Labor Party, Bill Shorten (R)

Summary.
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17



Greater focus on our customers



To realise potential growth in multiple

countries



With continued discipline on cost management

and customer innovation



While protecting shareholder value in our core

business



Enduring commitment to sustainability, staff

wellbeing, process safety and customer experience

Image: One of Meridian’s pure electric Hyuandi IONIQ fleet vehicles

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NZ WHOLESALE MARKETS. MIKE ROAN.



“New Zealand is a world leading example of a

well functioning electricity market...” 2017 NZ Energy Policy Review – International Energy Agency



“....strong improvement across the three key

outcomes of competition, reliability and efficiency...” 2017 Electricity Authority Annual Report

Overview.

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Meridian Energy Limited Investor Day November 2017
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ASX Commences – April 2011




Liquidity

Pole 3 Commissioned – May 2013



NZ-wide competition emerges

FTRs – June 2013



Emergence of basis products

ASX Monthly Products Arrive – Dec 2013



Additional liquidity (in prompt months)

Gate Closure to 1 Hour – June 2017



Spot market price efficiency improves


Key market reforms.

ASX – standardised forward market

Pole 3 – improved market flexibility & risk management

ASX Monthly Products – short term standard products to price hydrology

Financial Transmission Rights (FTRs)

Spot Market Gate reduces from 2hrs to 1 hr

2008 ‘dry year’ and subsequent Ministerial Review

Today:

35 retail brands Security of supply Very competitive retail market 25 generating companies 47 traders participating

The forward market is very effective •

Liquidity exceeds initial targets



Monthly products provide ability to hedge

seasonal shapes (and enhance liquidity)



Meridian has sold over 100MW on ASX in

various quarters



Others use this market to hedge effectively as

well

ASX forward market.

Meridian Energy Limited Investor Day November 2017

21







    





 



 









Source: ASX

!

#!$!&!(!

"!!

"#!

$"&   
""'   



 

$#!"&

"#!"'

%'! 

MM (market maker)

Meridian Energy Limited Investor Day November 2017
22

OTC market emerged following ASX •


Used for short term hedging



Brokered and bilateral (direct)



Products are typically bespoke



Large hedging transactions (i.e. 10MW +)



Unit outage hedges



Shaped retail hedges



Specific risk instruments like our swaption

with Genesis

Over the Counter (OTC) market.

Source: Meridian

"!!

'!%!$!

#!

!

#!$!%!'!

"&

"&

"&

"&

"&
"&

 

  "&




 



Instrument that manages price risk between nodes



Meridian is one of the largest participants •


Should not be a surprise with our South Island hydro generation and distributed customer base



FTRs are effective baseload products •


FTRs manage underlying basis risk



FTRs do not manage peak or other basis risks, OTC (and spot) market products are designed to do this

Financial Transmission Rights (FTRs).

Meridian Energy Limited Investor Day November 2017

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Source: Meridian

■ Contact ■ OMF ■ Other ■ Meridian

Meridian Energy Limited Investor Day November 2017
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Spot market prices provide an index for most contracts



Efficiency and reliability of these prices builds support for contracting



Enabling changes to offers/bids as close to real time as possible improves price formation •


Spot market is the central market



Spot market flexibility allows participants to

adjust positions



The move from 2 hours to 1 hour went very

smoothly



We will ask the EA and System Operator to

consider reducing it further to 30 minutes



20 years of spot market trading.

Image: Meridian’s Wellington trading room



Wholesale markets are competitive and effective



The addition of ASX, OTC and FTR markets in particular drive greater competition



Meridian participates in all markets to manage its portfolio



The Electricity Authority is acknowledged internationally as an effective market operator


Summary.

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Image: Meridian’s Wellington trading room

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MANAGING OUR PORTFOLIO. GUY WAIPARA

.

Generation and sales portfolio •

Bowtie framework



Modified to cover observed behaviour



Optimising real time hydro dispatch

2017 review



Statistics



Managing risk and storage



“Hindcast” results



What did we learn?

Overview.

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Image: Lake Pūkaki and Genesis Energy’s Tekapo B station, June 2017

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Whole of NZ construct




Demand (including demand response)



Supply (including plant reliability)



Hydrology



A simplified regional transmission system

Our objective



To find the portfolio or contract position that

delivers the maximum revenue, with the minimum distribution, across the hydrology outcomes we expect to experience



Guides our three-year portfolio planning and is

integrated across all of our wholesale and retail sales channels

Bowties.

Source: Meridian

Impact of contract positions •

Observations are that parties’ behaviour is

affected by their respective contract positions



Have developed our models to include the best

information we have on our and others’ contract positions



Still includes an opportunity cost of water to

ensure that hydro storage is managed efficiently within its full operating range (from spill to shortage)

Reflecting market behaviour.

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Image: Meridian’s Mill Creek wind farm

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The bowtie neck has a reasonable range •


So there are a number of “optimal” contract

positions



Doing more work to test what position(s)

deliver improvements in mean revenues while minimising variability



Early results look like we have more capacity to

sell above our current contract position without incurring more risk



The NZAS back-to-back contracts have also

created more sales headroom

Next evolution.

Source: Meridian

Minimise risk

Maximise revenue

Image: NZAS aluminium smelter, Tiwai Ploint

7,029
6,285

5,900

6,435

455

1,110

1H FY17

2H FY17

GWH

GENERATION AND CONTRACTED SALES

Physical generation

Contracted sales

Acquired generation

How we adjust the portfolio to reflect near-term conditions •


Even with what may look like a conservative portfolio, we can find ourselves long generation (first half of 2017) or short generation (second half of 2017)

When average doesn’t show up...



It is important that all wholesale and retail sales are well co-ordinated



Models are run weekly with weekly energy targets delivered to our traders. Pricing guidance is provided to retail C&I sales



Executive portfolio committee meets monthly to oversee execution of the plan



During times of hydro stress this committee is updated weekly

Moving closer to real time.

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Source: Meridian

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Hydro optimisation continues right up to real time •


Waitaki is block dispatched



Optimising lake levels across the chain means you

can get the best water to wire efficiency (remember E

p

= mgh?)

What we have achieved •


Developed in-house tools to optimise hydro

production to deliver weekly targets across a range of inputs, including:



Weekly energy, outages, generation efficiency,

ramp rates, lake levels, flow and lake level constraints, expected inflows



Estimated $3m pa improvement



Also delivers consistency in operations across all

Generation Controller staff

Within a week, up to real time.

Source: Meridian’s hydro optimisation tools

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2017 IN REVIEW.

First half FY17



Inflows 96% of average



Generation 3% above FY16



$44/MWh average generation price



Storage 118% of average at end of December 2016

Second half FY17




Inflows 78% of average



Generation 8% below FY16



$59/MWh average generation price



Storage 55% of average at end of June 2017



February to June 2017 were the lowest same-period inflows on record

2017 key statistics.

Meridian Energy Limited Investor Day November 2017

34

Source: Meridian

0

1,000

2,000 3,000

1-Jul 1-Aug 1-Sep 1-Oct 1-Nov 1-Dec

MERIDIAN'S WAITAKI STORAGE 1H FY17 (GWh)

Average 1979-

2017

0

1,000

2,000 3,000

1-Jan 1-Feb 1-Mar 1-Apr 1-May 1-Jun

MERIDIAN'S WAITAKI STORAGE 2H FY17 (GWh)

Average 1979-

2017

1,919

7,029

5,665

INFLOWS, GENERATION, STORAGE 1H FY17 (GWH)

Inflows

Physical generation

Storage (period end)

883

6,285

4,845

INFLOWS, GENERATION, STORAGE 2H FY17 (GWH)

Inflows

Physical generation

Storage (period end)

Source: Meridian

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Commercially •


Called the Genesis Swaption between June and August 2017



Were able to delay calling this as we had better offers available earlier on



ASX and OTC liquidity meant we had a range of options



Still had the smelter demand response available to call if necessary



Swaption flexibility significantly improved our risk management tool set. Benefit to having 50 MW tranches with relatively short call periods



NZAS backing contracts plus the swaption has significantly reduced Meridian’s risk position

Managing risk.

Source: ASX

40

60

80

100

120

Q3

2017

Q4

2017

Q1

2018

Q2

2018

Q3

2018

Q4

2018

Q1

2019

Q2

2019

Q3

2019

Q4

2019

Q1

2020

Q2

2020

Q3

2020

Q4

2020

$/MWh

BENMORE ASX FUTURES SETTLEMENT PRICE

31 January 2017

28 February 2017

31 March 2017

28 April 2017

31 May 2017

30 June 2017

0

5

10

15

20

25

30

12 Jun 17

19 Jun 17

26 Jun 17

03 Jul 17

10 Jul 17

17 Jul 17

24 Jul 17

31 Jul 17

07 Aug 17

Weekly energy (GWh)

  GENESIS SWAPTION VOLUMES

Source: Meridian

Even at the end of the dry period



Portfolio could still be covered with minimal risk of hitting the bottom of Pūkaki



At 21 July still 1ox more likely to spill (34 sequences) than to even use contingent storage (3 sequences)



The effect of the Swaption is to reduce the risk significantly (200 GWh lift in 5

th

percentile)

Take outs




Portfolio is robust and has changed with NZAS contracts



Still had more insurance options over and above the Swaption



These facts seemed to surprise some stakeholders



Ongoing information sharing was key

Storage management.

Meridian Energy Limited Investor Day November 2017

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Source: Meridian

Source: Meridian Lake Pūkaki projected storage from July 2017 with Swaption volumes

Source: Meridian Lake Pūkaki projected storage from July 2017 without Swaption volumes

Theoretical storage energy balance

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What is a Hindcast? •


A comparison of what occurred with what perfect

competition would have delivered

Why is it important?



Provides an analytical framework to test whether the

market has delivered an efficient outcome for consumers



Is a good proxy for a regulatory test and informs

questions such as:



Is a company using storage too conservatively or

aggressively?



Do market prices reasonably reflect scarcity?

Results



Hydro storage and market prices consistent with

expected outcomes from a perfect market



If anything, slight risk aversion in our storage use

A “Hindcast” comparison.

Source: Meridian

Transpower •

Engaged early to discuss hydrology, water values and

plans



Considered a change to contingent storage – but

decided to put off until a review was completed



Reviewing their security of supply policy

Electricity Authority



Engaged early as above



Received some complaints from others but these

lacked quantitative analysis



EA 2017 Annual Report “...electricity market has once

again worked effectively to manage the dry conditions.”



Will complete a formal review of 2017

Engaging with stakeholders.

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Market maturity •


Continued to learn and evolve over dry year experiences



The improved liquidity in the ASX and OTC markets helped manage risk

Stakeholder engagement



No such thing as engaging too early. There is significant information asymmetry



Having an analytical framework like hindcasting is extremely helpful



Testing the system operator’s security policy (in particular their modelling of contingent storage) was done too late

Others perceptions of risk and behaviour



Is potentially based on historical assumptions which have not been tested, given the changes to our portfolio

What did we learn from this year?

“Assumptions are the termites of relationships.” (Henry Winkler)

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STRATEGIC ASSET MANAGEMENT. RICHARD GRIFFITHS

.



Approach and philosophy



Our 20-year asset management plan



Expenditure forecasts



Major projects



Process safety



Benchmarking

Content.

Meridian Energy Limited Investor Day November 2017

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Image: Meridian’s Benmore power station

Image: Meridian’s Aviemore power station

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We are committed to: •


Protecting the value of Meridian’s assets



Maintaining the safety, performance and

capability of these assets over their projected economic life, and



Meeting our asset management obligations in a

manner that is demonstrably world class

Performance is founded on:



Total Asset Management – people, process, plant



AMP based on balancing risk, financial and plant

performance



Best practice reliability centred maintenance

practices and processes



Conformity with ISO55001

Asset management principles.

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Major turbine and generator works set the primary timing of the 20-year plan

Strategic asset management plan.

Meridian Energy Limited Investor Day November 2017
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Long-term commitment to the Structural Safety Evaluation Programme

Strategic asset management plan.

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Control systems, excitation & protection replacements are best fit

Strategic asset management plan.

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Fit other projects in at optimum timing

Strategic asset management plan.

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Waitaki Stage II, civil works, contingent works

Strategic asset management plan.

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Current plan

Strategic asset management plan.

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Excludes Stage II Waitaki generator refurbishment – a 10-year programme, as yet unconfirmed, with peak annual spend of around $15m

Hydro capital expenditure forecast.

0

10

20 30

40

50

FY10 FY11 FY12 FY13 FY14 FY15 FY16 FY17 FY18 FY19 FY20 FY21 FY22 FY23 FY24 FY25 FY26 FY27 FY28 FY29

INDICATIVE HYDRO CAPITAL EXPENDITURE

$M

Source: Meridian

Overview •

Waitaki was first commissioned in 1935 and is

the final power station on the Waitaki River



Reliability and performance is important for

managing consent flows



Annually generates ~$30m in energy revenues

Capital Deferral Enabling Works (complete)




Stator cleaning on Units 1 & 2



Unit 3 re-commissioned



Upgraded unit protection and fire suppression



Sluice gate control upgrades

General Upgrades (complete)



Mechanical & electrical plant refurbishments



Seismic strengthening of power house



Upgrade of transformer fire walls



Upgrade of station cranes

Waitaki refurbishment.

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Images: Meridian’s Waitaki power station

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Dam Safety Upgrades (complete)




Repairs to left bank abutment



River bank erosion protection works



Piezometers upgraded



Uplift drainage upgraded and extended

Dam Safety Upgrades (work in progress)



Inundation protection of the Hornell Gallery



Manifolding of the uplift drainage system

Stage II Generator Upgrades (planned)



Ongoing commitment to maintenance and condition

monitoring to extend life and maintain reliability



Upgrade timing driven by condition as we operate the

machines in a “manage to end-of-life” mode



While the actual timing is uncertain, the plan assumes

this will initiate in 5-10 years



Comprises complete replacement of four of the seven

turbines/generators

Waitaki refurbishment.

Images: Meridian’s Waitaki power station

Overview •

Manapōuri commissioned in 1967



Underground power station



Generates ~$250m per annum

Main Unit Transformers



T2, T3 and T4 were replaced in 2015 following

failure of the oil coolers



T1, T5, T6, T7 currently being manufactured by

Wilsons



All four will be delivered to Deep Cove in late

November 2017

Local Service Transformers



T8 & T9 manufacturing underway



Mitsubishi SF6 transformers



SF6 eliminates environmental risks and fire

hazards from switchyard



Delivery expected end of FY18

Manapōuri transformers.

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Image: Transformer haulage Manapōuri power station

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Overview •


Ōhau chain comprises Ōhau A, B & C



Controls flow from Lakes Pūkaki & Ōhau



Collectively generate ~$220m pa

Programme




$48m business case approved in October 16



Programme extends through to 2023

Scope comprises:



Ōhau A unit refurbishments



Ōhau A, B & C control upgrades



Ōhau B & C protection, excitation and transformer

firewall upgrades



Ōhau B & C generator refurbishments

Current status



Unit G11 stator inspection completed



Design and procurement well underway

Ōhau chain upgrade programme.

Image: Meridian’s Ōhau A power station

Image: Meridian’s Ōhau B power station

Overview •

Meridian initiated a review of its process safety

risks in 2014



Lockheed Martin and Scottish Power were

engaged in 2015 to facilitate risk bowtie workshops and undertake a gap analysis



Meridian established a programme to

implement the recommendations



In 2016 a ramp-down event at Manapōuri

occurred. DuPont were invited to undertake a post-incident review



DuPont endorsed the workstreams that were

underway and recommended an additional focus on the interface between ICT and generation plant



The outcome has also seen an increased level

of management focus and commitment


Process safety.

Meridian Energy Limited Investor Day November 2017

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1.


Understanding what can go wrong

2.


Knowing what systems we have to prevent things from going wrong

3.


Having information to assure ourselves that these systems are working effectively

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Key Workstreams: •


Develop R

Risk Bowties

for all sites and integrate

into AMP



Undertake an A

Alarm Management

and

rationalisation programme



Undertake a R

Risk Management

review



Review the P

Plant Change Control

process



Process safety T

Training and Awareness


programme



Review the management of C

Controlled

Documents



Address defects with the G

Generation Control

System



Develop a suite of P

Process Safety KPIs

and

dashboard

Process safety.

Images: Meridian’s risk bowties and reporting

International Benchmarking



Meridian compares very favourably against international peer group in respect to both Composite Service Level

(function of Plant

Availability and Forced Outage duration) and

Unit Cost Of Production



Manapōuri is a leading performer in the large hydro category



Waitaki chain stations are all in the upper quartile

Benchmarking results.

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Meridian Energy Limited Investor Day November 2017
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OPERATIONAL MAINTENANCE. MAT BAYLISS.

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The Waitaki scheme.

Some facts




Eight hydro stations in the Waitaki Scheme



Tekapo A and B are owned by Genesis Energy



The six hydro stations from Lake Pūkaki to

Waitaki, owned by Meridian

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The Waitaki scheme.

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Hydroelectric power.

How we are organised •

Engineers, trades staff, technicians, operators,

maintenance planners



Dedicated maintenance teams for three asset

portfolios



Ōhau Chain, Mid-Waitaki and Manapōuri



Including graduates and apprentices, 70 staff

in three locations



Augmented by contractors

What do we do



Planned maintenance, defect and fault

response



Maintenance projects include civil,

mechanical, electrical and automation repairs and upgrades

Hydro Asset Maintenance

.

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Hydro plant performance measures




Availability (% of time)



Operational Unit Cost $/MWh



Forced Outage Factor (% of cap)



Forced Outage Count (# events)

Maintenance process measures




Multiple live measures



Extensive use of maintenance management

system (Maximo)



Targets reset annually to reflect focus areas,

continuous improvement



Remuneration linked to outcomes for all staff



Periodic benchmarking using external service

Performance.

Source: Meridian

Our Approach •

Lead role in industry collaboration forums

(StayLive, EEA etc)



Safety & Sustainability Board Committee



Dedicated H&S team reporting to MaP GM



Competent workforce, strong safety culture



Incident reporting and investigation



Safety performance of contractors

Health and safety.

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Our Community Engagement Strategy




Significant footprint in multiple small rural

communities



Goodwill important when operating large

assets, lakes and rivers



Multiple engagement mechanisms & channels



Power Up – Meridian community fund



Community sponsorships



Staff involvement



Collaboration



National sponsorships




Meridian held in high regard

Community.

Image: Haast kiwi release, Rona Island, Lake Manapōuri

History •

Built in 1968 as a temporary service town



Saved from demolition in 1983



Today is the largest town in the MacKenzie

Meridian



Large employer in the area, now including a

retail call centre



Direct contributor to the community

Twizel.

Meridian Energy Limited Investor Day November 2017

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Image: Twizel, late 1960s

Source: Electricity Authority

MANAGING TRANSMISSION
.



GEOFFRY SAMS AND JON SPILLER

.

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Meridian’s power stations •


2,762MW installed capacity



32% of New Zealand’s generation



89% located in South Canterbury and Southland

Meridian’s customer base



280,000 customers all across New Zealand



Connected through 29 lines networks



Geographically distant from our generation

New Zealand transmission system



Owned and operated by Transpower



11,238km transmission lines connecting generation to

customers



High voltage backbone running from Southland to

Auckland

Getting energy to customers.

Source: Transpower’s APR 2017

Meridian Energy Limited Investor Day November 2017
68

The transmission system is robust




Transpower backbone consists of high voltage

(220-110kV) AC transmission lines



North and South Islands connected via 350kV

HVDC link between Haywards in Wellington and Benmore in South Canterbury



Transpower’s investments in the following projects

over the last five years has removed most bottlenecks:



North Island Grid Upgrade Programme 400kV

(capable) line from Whakamaru to Pakuranga in 2012 ($824m)



HVDC Pole 3, replacement of Pole 1 2013 ($672m)



North Auckland and Northland reinforcement for

upper North Island 2013 ($473m)



Ōtāhuhu substation diversity 2010 ($99m)



Wairakei ring 2013 ($141m)

Transmission backbone.

Source: Transpower’s RCP2 Submission

Meridian Energy Limited Investor Day November 2017
69

Investment in the HVDC link has greatly improved Meridian’s generation flexibility •


Following the decommissioning of Pole 1 in 2011, total

HVDC capacity reduced from 1,000MW to 700MW



New HVDC Pole 3 was then commissioned in 2013,

increasing total HVDC capacity to 1,200MW



Usable capacity

1

is often signficantly lower, dependant

on a number of market conditions, primarly NI reserves



Meridian has been working with Transpower to enable

greater utilisation of the full HVDC capacity



As part of this effort, the overload capability was

increased in 2016, which enabled usable capacity of ~950MW

HVDC Pole 3.

Source: Meridian

1: Usable capacity calculated assuming 300MW of NI reserves offered to the market

-1000

-500

0

500

1000

1500

0%

6%

12%

18%

24%

30%

36%

42%

48%

54%

60%

66%

72%

78%

84%

90%

96%

Transfer [MW]

Probability of exceedence [%]

HVDC North transfers (2011 - 2016)

Tx limit 2011 2012 2013 2014 2015 2016

Utilisation has increased over time

0

200

400 600 800

1000

1200 1400

Jan-11

May-11

Sep-11

Jan-12

May-12

Sep-12

Jan-13

May-13

Sep-13

Jan-14

May-14

Sep-14

Jan-15

May-15

Sep-15

Jan-16

May-16

Sep-16

Jan-17

May-17

Sep-17

Transfer [MW]

HVDC transfer capability (2011 - 2017)

Usable capacity

Installed capacity

Pole 2,

700MW

Pole 3,

1000MW

Overload

capacity

Control upgrade,

1200MW

Meridian Energy Limited Investor Day November 2017
70

Meridian has a number of tools and processes to manage transmission constraints •


Simulations from power system modelling



Historical event analysis



Knowledge capture of constraints and outages

We also manage exposure through a number of market mechanisms



Financial Transmission Rights (FTR’s)



Over the counter financial arrangements



Collaborating with the System Operator on risk

assumptions



Implementation of “special protection schemes”



Plant maintenance scheduling


Constraint management.

FTR Holdings -

Dec 2017

(as at 1/11/17)

Power System

Modelling

Software

Meridian Energy Limited Investor Day November 2017
71

Two primary drivers




Meridian perceives the biggest possible catalysts

of change to the transmission system as:



Potential Tiwai Point smelter shutdown



Potential Huntly Rankine unit retirement



Both these scenarios would require new

transmission investment by Transpower



Meridian believes our current tools and

capabilities would enable us to continue to manage our portfolio, if the transmission investment projects were progressed

Catalyst for transmission investment.

Image: Genesis Energy’s Huntly

Power Station

Image: NZAS aluminium smelter at Tiwai Point

Meridian Energy Limited Investor Day November 2017
72

Three significant restrictions




If an exit of the Tiwai Point smelter occurs, a

number of transmission constraints have been identified by Transpower that would impede energy transfer across the transmission system:



1. Southland export constraint



2. HVDC north export constraint



3. Lower North Island transfer constraint


Potential Tiwai Point smelter shutdown.

Image: NZAS smelter at Tiwai Point

Meridian Energy Limited Investor Day November 2017
73

Constraints can be managed while investment programme is completed •


A potential Tiwai Point smelter exit will release an

additional 5,000GWh of energy into the market



This generation is predominately supplied from our

Manapouri power station and Contact Energy’s Clutha power scheme



We are currently investigating options with

Transpower to maintain the current transmission capacity during the subsequent investment program



Peak generation capacity within the region will be

constrained



In order to minimise lost energy we will need to

manage storage until transmission is built out

1. Southland export constraint.

Source: Meridian

Source: Transpower’s 2016 SSF

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Meridian Energy Limited Investor Day November 2017
74

Project ready to initiate following a smelter announcement •


Transpower have a fully costed and approved

project to resolve the Southland export issue; the Clutha Upper Waitaki Lines Project

1

:



Two sections already commissioned



Three years to complete remaining two

sections



Detailed designs for remain projects

completed and majority of land access rights obtained



Fully costed at $110m

2



Once complete will enable full generation

export capability


Southland improvements.

Source: Meridian

1: https://www.transpower.co.nz/clutha-upper-waitaki-lines-project-and-tiwai-future-faqs


2: Transpower’s Grid Upgrade Plan 2009 Instalment 3

Image: Lake Manapōuri

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SMELTER EXIT

Meridian

Others

Meridian Energy Limited Investor Day November 2017

75

Current HVDC capacity is sufficient to manage greater transfer to North Island •


HVDC capacity has been substantially increased



Current peaking capacity of 950MW has only been

utilised 2% of the time



Any potential Tiwai Point smelter exit will have no

impact to current HVDC peaking capacity into the North Island



The additional energy released if the Tiwai Point

smelter was to exit can be transferred to the market under the current HVDC capacity, provided storage is managed across the year

2. HVDC north export constraint.

Source: Meridian

Image: Transpower’s Pole 3, Benmore

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Meridian Energy Limited Investor Day November 2017

76

Increasing usable capability •


Transpower have started detailed investigation into

undersea cable replacement project



Current cable asset end of life between 2023-2025



Installing a fourth cable would increase HVDC

capability to 1,400MW and could increase usable capacity to 1,150MW



Cost of installing an additional 500MW cable is

~$55.8m

1



Adds an additional 200MW of peaking capacity into

the North Island



With flexible hydro assets able to respond quickly,

we are well positioned to utilise the additional HVDC peaking capacity to support North Island demand


2. HVDC improvements.

Image: Transpower’s Pole 3, Benmore

1: Assuming it is installed as part of the undersea cable replacement project. If project precedes in isolation, expected cost is $150m

Source: Meridian

Meridian Energy Limited Investor Day November 2017
77

Current transmission issues •


Limited transfer from Bunnythorpe through to

Whakamaru



Limits lower North Island and Taranaki generation

into the upper North Island

No planned improvements



Constraint when competing with Taranaki

generation



Expect to see lower cost generation dispatch ahead

of higher cost peaking thermal

3. Lower North Island transfer constraint.

Source:

Transpower’s

2016 SSF


0

1000

2000

0 100 200 300 400 500 600 700 800 900 1000

Wellington transfer North [MW]

Taranaki Generation [MW]

Wellington export limits based on Taranaki generation

(Tokaanu-Whakamaru)

Linear (Winter)

Linear (Summer)

Source: Transpower’s 2016 SSF

Meridian Energy Limited Investor Day November 2017
78

Investigation is underway




A separate issue is the potential

decommissioning of Huntly Rankine units



There is sufficient generation in the market to

cover demand into the upper North Island



94% of upper North Island generation is

currently sourced from outside region



Transmission investment will be required ahead

of the Rankine unit retirement to enable sufficient energy to be transferred into the region



This investment would be independent of any

Tiwai Point smelter outcome


Huntly Rankine unit retirement.

Image: Genesis Energy’s Huntly Generation Station

1500 1700 1900 2100
2300 2500 2700 2900

3100

2015 2017 2019 2021 2023 2025 2027 2029 2031 2033

Upper North Island demand [MW]

Auckland voltage stability import limit

Winter demand Current capacity

Meridian Energy Limited Investor Day November 2017

79

Investment project underway •


Transpower currently working through the Waikato

and Upper North Island Voltage Management Investigation



Longlist option consultation has been completed



Lower cost short-term options likely to be

preferred such as series capacitors



Solution to be implemented ahead of any Genesis

Rankine unit retirement

Auckland import.

Source: Transpower’s UNI generation decommissioning report

Source: Transpower’s 2016 SSF

Investment required by

2024 based on Transpower

demand forecast

Meridian Energy Limited Investor Day November 2017
80

Meridian is well placed to manage its portfolio through future uncertainty




Transmission upgrades are more critical for

lower South Island and reduce as you move north



Key projects are well developed



Flexibility of storage will allow Meridian to

manage lost energy during investment phase



Our transmission team continue to work with

the industry to improve the current capability of the transmission system

Summary.

Image: Meridian Energy’s Benmore Power Station

Meridian Energy Limited Investor Day November 2017
81

ENERGY EFFICIENCY. GRANT TELFAR

.

Meridian Energy Limited Investor Day November 2017
82

What is the problem




Very poor data on energy usage



Demand has been flat for some time



Traditional econometric modelling approach has

increasingly struggled to explain demand outcomes

Forecasting demand.

GDP

Dwellings

Population

Tariffs

GDP

Dwellings

Population

Tariffs

Residual

1998-2008

: small residuals

(error in fit) using standard

macro-economic factors

2008 onwards

: residuals

grow; harder to explain

Residual

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“Missing”

demand

Source: Meridian, Ministry of Business, Innovation & Employment

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NZ household usage



Very poor data on energy usage



BRANZ HEEP study (2002-2005) last

comprehensive nationwide survey



Insights:



Electrical heating spend is low (on

average)



Biggest spend is on hot water

Usage as at 2008.

Meridian Energy Limited Investor Day November 2017

83

Source: BRANZ, Meridian

costs in real

terms (2017$)

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Meridian Energy Limited Investor Day November 2017

84

NZ non-household usage




Even worse data



BRANZ HEEP plus 2005 Treasury study are both

useful



Insights:



NZ business use a lot of motors (motive and

pumping)



Combined lighting, refrigeration, and heating

similar scale to residential

Usage as at 2008.

Source: Treasury, Meridian

NZ households •

Kiwis love buying appliances



TV efficiency has improved dramatically



2017 lighting efficiency reflects slow LED uptake



Room for further efficiency improvements



Technology driven rather than price responsive

NZ non-household



Hard to know



Motive power, lighting and water heating have

significant potential to reduce energy demand



Total efficiency potential up to 25%



Likely to free-ride on technology changes



More likely to trade-off costs (eg LEDs)

What has changed?

Meridian Energy Limited Investor Day November 2017

85

Source:

EECA,

Meridian

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technology

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driving

savings

savings are

available at

a price

Source:

Treasury,

Meridian

Meridian Energy Limited Investor Day November 2017
86

Efficiency is only one part of the puzzle




Greater efficiency does not necessarily mean a

reduction in overall consumption, e.g: •


NZ houses appear warmer than they were 15

years ago (not hard)



Replacing an incandescent light bulb with an

LED implies an 85% saving in energy use – but how many do LEDs do we install? What incandescent ‘waste’ heat now needs replacing?

Household energy usage as at 2017 •


Not a lot of change proportionally



Heating consumption has likely increased



TV consumption has dropped markedly



Incremental improvements in appliances ...except

dryers!













 

 



    







        





 



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costs in

real terms

(2017$)

indoor

temperatures

up

no clear change in

external

temperatures

How we use energy now.

Source:

BRANZ,

Meridian

Source:

Meridian

NZ households •

Increase seen in potential household efficiency

related savings since 2002



Hot water shown least improvement



Scale of implied savings ~500MW of new wind

generation ($1.2B+ worth) in last 15 years

NZ non-household



Increase seen in potential commercial efficiency

related savings since 2002



Equipment life cycle (age and replacement) is critical



Higher uptake of LEDs than residential (probably)



Scale of implied savings is another ~500MW of new

wind generation in the last 15 years

Better efficiency potential?

Meridian Energy Limited Investor Day November 2017

87

Source:

Meridian

Source:

Meridian



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technology driven

efficiency potential

steadily increasing

technology & cost

driven efficiency

potential steadily

increasing

Meridian Energy Limited Investor Day November 2017
88

Improved demand forecast




Including efficiency potential alongside other

economic variables dramatically improves model



But early days! Careful of monkeys & typewriters



Assessing future efficiency is challenging



Forecast efficiency data and customer usage is

not readily available – but we

can

examine



Remaining efficiency potential by usage



Views on consumption/ICP trajectories



Economic energy intensity improvements



Growth of 0.5% - 1.0% pa seems likely – with plant

retirement adding to the system need for new power

Where to now?

Source:

MBIE,

Meridian

Source:

Meridian

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“Missing” demand

better explained

Efficiency and price

response bends growth

downwards

...

but how far?

GDP

Dwellings

Population

Tariffs

1991-2017

:

including

efficiency

restores small

explainable

residuals

Efficiency

potential

Residual

CLIMATE VARIABILITY AND CHANGE
.



DR JEN PURDIE.

Meridian Energy Limited Investor Day November 2017

89

Meridian Energy Limited Investor Day November 2017
90

We forecast and plan on different time scales: •


Days to weeks:



plan generation and offers into the market to use

intermittent wind and to move water through the river chain



Months to years:



plan generation and contract position, and manage

risk through financial instruments



Years to decades:



We make long term projections of generation and

new plant

We are always walking the tightrope between:



Running out, and

We rely on the timely arrival of our fuel.

...OVERFLOWING!

Image: Genesis

Energy’s Tekapo

B station

Image: Contact

Energy’s Clyde Dam

91


Our fuel arrival varies from year to year



It’s arrival is anticorrelated with electricity demand



We have limited ability to store it



We have to plan the number of customers/contracts

that we take on ahead of time



We can offset some of our fuel variability with

planning and financial instruments

Our fuel is variable.



 !"#$

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Lake Pukaki weekly average inflows 1931-2013

New Zealand hydro inflows vs electricity demand

$

%$$$

&$$$

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($$$

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Storage and average annual inflows (GWh)

300400500600700800900

1000

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

GWh

Average NZ demand

Average NZ inflows

Meridian Energy Limited Investor Day November 2017

Sources:

Meridian

92
Weather forecast

Predictability – short term.

Offer into electricity market

Quantified half-hourly rainfall and wind forecast

Inflow forecast

Meridian Energy Limited Investor Day November 2017

93
Southern Annular Mode •


Ring of climate variability that encircles the South

Pole and extends out to the latitudes of New Zealand



6-week cycle wet-dry

Predictability – medium term - cycles.

Waitaki


catchment


inflows


1978-99


vs


2000-2008

(

m3


x


106

)

Mean Mean±SE Mean±1.96*SE

1978-99

2000-2008

7200740076007800800082008400860088009000920094009600

Source: Niwa

Summer El Nino rainfall anomaly (%)

Summer La Nina rainfall anomaly (%)

Inter-decadal Pacific Oscillation (IPO) index 1911-2016

El Nino – Southern Oscillation (ENSO) •


Periodical variation in winds and sea surface

temperatures over the tropical Pacific Ocean



2-5 year cycle



Significant impact on our inflows and wind

Interdecadal Pacific Oscillation (IPO)



Long term oscillation of the Pacific Ocean



20-year cycle



1977-99 was wet, 2000– now dry

Meridian Energy Limited Investor Day November 2017

94


Snowmelt contributes half of our summer inflows

in the Waitaki catchment



Difficult to measure in a mountainous catchment



Several high-altitude measurement sites



A snowpack simulation model estimates GWh

stored as snow



Useful in spring/summer inflow forecasting

Predictability – medium term – snow melt.

Meridian Energy Limited Investor Day November 2017

95
The climate is changing




Glaciers are retreating



Seasonal snow is disappearing



Sea level has risen by 20cm in the past century




A 1 metre sea level rise is predicted to make 15 million

people in Bangladesh homeless

Predictability – long term climate change.

Image: Upsala glacier, Argentina

Image: Mt Hood, Washington

Meridian Energy Limited Investor Day November 2017

96


Warming trend at local climate stations



Snow and ice recession in our headwaters

Climate change - local changes.































































































      
1 deg C warming since 1930

Hermitage annual average temperature 1930-2017

Images: Glacial retreat at Mt Cook National Park – Tasman Glacier

Ice loss

Meridian Energy Limited Investor Day November 2017

97


Annual rainfall and inflow totals have not

changed significantly over the 90 years of record...



but the seasonality of our rainfall and inflows

has

changed significantly over the past 90

years



Autumns have become up to 20% drier over

time



Mid-summer has become slightly wetter



We have incorporated these changes into

our generation modelling and planning


Climate change – local changes.

Lake Pukaki weekly inflows long term averages 1929-72 vs 1973-2015

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Older inflows

Recent inflows

Hermitage at Mt Cook February rainfall 1930-2017





































































 

  

Meridian Energy Limited Investor Day November 2017

98
Niwa take global climate model (GCM) projections and regionally downscale them to predict what climate changes we can expect in NZ

What can we expect in the future?

Source: Tait et al 2016, https://ofcnz.niwa.co.nz

2055

2090

About 1 - 1.5 degrees warmer everywhere

1 – 2.5 degrees warmer everywhere

Projected annual temperature changes in NZ by 2050 and 2090 under a “middle of the road” emissions scenario

Temperature changes

Meridian Energy Limited Investor Day November 2017

2055
99

Projected annual rainfall changes in NZ by 2050 and 2090 under a “middle of the road” emissions scenario

Rainfall changes – annual

5-15% wetter in our catchments

2090

10-20% wetter in our catchments

Wetter in the west and south, and drier in the east and north

Source: Tait et al 2016, https://ofcnz.niwa.co.nz

Meridian Energy Limited Investor Day November 2017

99

Rainfall changes – seasonal
Summer rainfall is projected to increase 5-15% in our catchment headwaters

Winter rainfall is projected to increase 15-25%

Source: Tait et al 2016, https://ofcnz.niwa.co.nz

Meridian Energy Limited Investor Day November 2017

100

2055

2055

101
Wind •


The frequency of extreme winds over New Zealand is

likely to;



Increase in almost all areas in winter



Decrease in summer


0.005.00

10.0015.0020.0025.0030.0035.0040.00

7-Jan

17-Jan

27-Jan

6-Feb

16-Feb

26-Feb

8-Mar

18-Mar

28-Mar

7-Apr

17-Apr

27-Apr

7-May

17-May

27-May

6-Jun

16-Jun

26-Jun

6-Jul

16-Jul

26-Jul

5-Aug

15-Aug

25-Aug

4-Sep

14-Sep

24-Sep

4-Oct

14-Oct

24-Oct

3-Nov

13-Nov

23-Nov

3-Dec

13-Dec

23-Dec

GWh

Week ending

Long term average wind generation at Meridian wind farms

Heavy rainfall •


Larger heavy rainfall events are projected to occur in

NZ



Partly because of increased westerly winds (more and

stronger fronts)



And also because warmer air can carry more moisture

(about 8% more moisture for every 1 degC warming)



Studies suggest a 100-year return period peak river

flow in NZ will become a 20-year return period event by 2100 (Gluckman P.D 2013, Lawrence et al 2013)

Meridian Energy Limited Investor Day November 2017

102
Drought •


No change to drought frequency is predicted in our

catchments over the next 50 years



Approx. 10-12% more time in drought is predicted

for the East Coast of the South Island



An increase of 10% corresponds to about 35 more

days in drought per year, on average



This is likely to increase irrigation demand

Twi ze l

Source: Ministry for Primary Industries

New Zealand median drought change between 1980-99 and 2030-49

Meridian Energy Limited Investor Day November 2017

103
Snow •


Snow amounts are predicted to decrease and

snowlines rise under climate change



80-90% of current snow depths by 2040



50-80% of current snow depths by 2090


Source: Niwa

"*$*%*&*'*

#"*

#$*#%*#&*

              

 *   

 


+ 

+   

Lake Pukaki inflows vs Hermitage rainfall: monthly totals as % of annual total



50% of Waitaki summer inflows = snow melt



So future inflows will be lower in summer and

higher in winter...



(but are predicted to be higher overall)


Meridian Energy Limited Investor Day November 2017

104
Summary of predicted changes in climate.

        

 



No significant change to hydro catchment rainfall

and inflows over the last 100 years, but...




Snowpack and glaciers getting smaller over time




Significant seasonal shifts in inflow regime


Projected to get:



Drier in current irrigation areas




Warmer everywhere




Windier at our wind farms, especially in winter


$"$

($"$

%$$"$%($"$&$$"$

&($"$

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#&$%(

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%*)'#&$%(

Older inflows

Recent inflows



Better match between fuel and demand




Wetter in our catchments


We have seen:

Meridian Energy Limited Investor Day November 2017

105
These changes may result in:




Inflow regime better matching demand



Higher summer electricity demand (irrigation) and

lower winter demand (heating)



Higher lake levels generally, particularly at

Manapōuri



Bigger individual rain storms



More wind generation


Impacts on Meridian of predicted changes in climate.

Changes relative to our current operations: •


We already work with fuel variability



ENSO and the IPO move our inflow regime 10% to

the wet or dry already



We regularly reassess our probable maximum flood

estimate for dam safety already

2400260028003000320034003600380040004200440046004800500052005400560058006000

1926

1929

1932

1935

1938

1941

1944

1947

1950

1953

1956

1959

1962

1965

1968

1971

1974

1977

1980

1983

1986

1989

1992

1995

1998

2001

2004

2007

2010

Annual inflow volume (m

3

x 10

6

)

13%

6%

Annual inflow volume (m

3

x 10

6

)

Lake Pūkaki annual inflow volume 1926-2013

Potential Manapouri lake levels 2017-18 with all historical inflows

Potential Manapouri lake levels 2017-18 with 40-100

th

%iles of historical inflows (proxy for 40% increase in inflows)

Manapōuri forecast lake levels under current inflows (top) and a projected 20% increase in rainfall (bottom)

Meridian Energy Limited Investor Day November 2017

Thank you.

Disclaimer.
The information in this presentation was prepared by Meridian Energy with due care and attention. However, the information is supplied in summary form and is therefore not necessarily complete, and no representation is made as to the accuracy, completeness or reliability of the information. In addition, neither the company nor any of its directors, employees, shareholders nor any other person shall have liability whatsoever to any person for any loss (including, without limitation, arising from any fault or negligence) arising from this presentation or any information supplied in connection with it. This presentation may contain forward-looking statements and projections. These reflect Meridian’s current expectations, based on what it thinks are reasonable assumptions. Meridian gives no warranty or representation as to its future financial performance or any future matter. Except as required by law or NZX or ASX listing rules, Meridian is not obliged to update this presentation after its release, even if things change materially. This presentation does not constitute financial advice. Further, this presentation is not and should not be construed as an offer to sell or a solicitation of an offer to buy Meridian Energy securities and may not be relied upon in connection with any purchase of Meridian Energy securities.

This presentation contains a number of non-GAAP financial measures, including Energy Margin, EBITDAF, Underlying NPAT and gearing. Because they are not defined by GAAP or IFRS, Meridian's calculation of these measures may differ from similarly titled measures presented by other companies and they should not be considered in isolation from, or construed as an alternative to, other financial measures determined in accordance with GAAP. Although Meridian believes they provide useful information in measuring the financial performance and condition of Meridian's business, readers are cautioned not to place undue reliance on these non-GAAP financial measures. The information contained in this presentation should be considered in conjunction with the company’s financial statements, which are included in Meridian’s integrated report for the year ended 30 June 2017 and is available at: All currency amounts are in New Zealand dollars unless stated otherwise.

Meridian Energy Limited Investor Day November 2017

107

Data sourced from publicly available filings. Our datasets may not be complete. Automated analysis can produce errors. If you believe any data on this page is incorrect, please contact us at hello@nzxplorer.co.nz. For informational purposes only. Not investment advice.

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