August 2022 Operating Report

Monthly Operating Report
August 2022

Contact Energy / Monthly Operating Report
2
»The Customer business recorded:
•Mass market electricity and gas sales of 458GWh
(August 2021: 436GWh)
•Mass market netback of $109.58/MWh (August 2021:
$102.09/MWh)
»The Wholesale business recorded:
•Contracted Wholesale electricity sales, including that
sold to the Customer business, totalled 701GWh
(August 2021: 758GWh)
•Electricity and steam net revenueof $102.74/MWh
(August 2021: $111.36/MWh)
•Electricity generated (or acquired) of 724GWh (August
2021: 795GWh)
•The unit generation cost, which includes acquired
generation was $37.37/MWh (August 2021:
$35.72/MWh)
•Own generation cost in the month of
$30.64/MWh (August 2021: $32.09/MWh)
»Otahuhu futures settlement wholesale price
for the 4
th
quarter of 2022 (ASX):
•As at16 September 2022: $95/MWh
•As at31 August 2022: $80/MWh
•As at29 July 2022: $119/MWh
»As at11 September 2022, South Island
controlled storage was 173% of mean and
North Island controlled storage was 133% of
mean
•As at11 September 2022, total Clutha
scheme storage was 168% of mean
•Inflows into Contact’s Clutha catchment
for August 2022 were 214% of mean. (July
2022: 159%, June 2022: 120%, May 2022:
112%)
»As at1 September 2022, Contact’s contracted
gas volume (including contracted swaps) for
the next 12 months is 13.4PJ*
For the month of August 2022
* Forecastgasvolumes as notified by suppliers, actual gas received is dependent
on field delivery
Prior periods restated to account for metering costs, previously included within ‘Cost to serve’, have been
reclassified to ‘Electricity direct pass thru costs’ to better reflect the direct nature of these costs and to improve
comparability with the industry.

0
50
100
150
200
CY22CY23CY24CY25
$/MWh
30/06/202129/07/202231/08/2022
0
100
200
CY22CY23CY24CY25
$/MWh
30/06/202129/07/202231/08/2022
0
500
1000
1500
2000
2500
3000
3500
4000
4500
SepOctNovDecJanFebMarAprMayJunJulAug
GWh
South Island ActualNorth Island Actual
South Island post-market meanNational post-market mean
New Zealand controlled hydro storage against mean
ASX futures settlement
Contact Energy / Monthly Operating Report
3
12 MONTHS
Otahuhu
Benmore

0%
20%
40%
60%
80%
100%
<$35$36-$60$61-$85$86-$110$111-$135$136-$160>$160
% of trading
periods
Aug-22Aug-21Jul-22
0%
20%
40%
60%
80%
100%
<$35$36-$60$61-$85$86-$110$111-$135$136-$160>$160
% of trading
periods
Aug-22Aug-21Jul-22
Wholesale electricity pricing
Otahuhu
Contact Energy / Monthly Operating Report
4
Benmore
Distribution of wholesale market price by trading periods

Contact Energy / Monthly Operating Report
5
Total national demand
Regional demand change (%) on August 2021
»New Zealand electricity demand was up 2.3% on August 2021 (up 1.9%
on August 2020)
Source: Contact and Electricity Authority grid demand (reconciled) http://www.emi.ea.govt.nz
FY21, 22 and 23 respectively
Regional demand is excluding NZAS
Nationwide
temperatures for
August 2022 were
10.3ºC, 0.5ºC warmer
than August 2021:
9.8ºC

Wholesale
Contact Energy / Monthly Operating Report
6
Retail
Generation mix, gross sales position and unit generation cost (FY22 and 23
respectively)
Retail sales volumes and netback (FY22 and 23 respectively)

Contact Energy / Monthly Operating Report
7
Measure
The month ended The month ended The month ended Two months endingTwo months ending
August 22August 21July 22August 22August 21
RetailMass market electricity salesGWh368 342 395 763 720
Retail gas salesGWh91 94 88 179 201
Mass market electricity and gas salesGWh458 436 483 941 921
Average electricity sales price$/MWh248.97 243.18 247.12 248.02 241.95
Electricity direct pass thru costs$/MWh(109.06)(112.34)(109.23)(109.15)(110.51)
Cost to serve$/MWh(12.49)(13.12)(11.95)(12.21)(12.48)
Customer netback$/MWh109.58 102.09 110.50 110.05 102.34
Energy cost$/MWh(118.74)(102.04)(131.21)(125.14)(105.92)
Actual electricity line losses%6%7%7%6%6%
Retail gas salesPJ0.3 0.3 0.3 0.6 0.7
Electricity ICPs#431,500 411,000 431,500 431,500 409,500
Gas ICPs#71,000 66,500 71,000 71,000 66,500
Broadband connections#74,000 55,000 72,000 73,000 54,000
WholesaleElectricity sales to Customer businessGWh393 369 422 815 768
Electricity sales to Commercial and IndustrialGWh136 111 128 264 228
Electricity CFD salesGWh172 279 176 349 625
Contracted electricity salesGWh701 758 726 1,428 1,620
Steam salesGWh68 68 33 101 107
Total electricity and steam net revenue$/MWh102.74 111.36 118.06 110.35 122.19
C&I netback (at the ICP)$/MWh131.73 88.46 144.80 138.16 103.16
C&I line losses%4%-1%5%4%2%
Thermal generationGWh31 76 155 186 262
Geothermal generationGWh283 295 287 570 590
Hydro generationGWh340 392 315 655 822
Spot electricity salesGWh654 763 757 1,411 1,674
Electricity sales -DirectGWh8 9 3 11 12
Acquired generationGWh62 24 -62 53
Electricity generated (or acquired)GWh724 795 760 1,484 1,739
Unit generation cost (including acquired generation)$/MWh(37.37)(35.72)(37.08)(37.22)(37.71)
Spot electricity purchasesGWh(521)(471)(547)(1,068)(984)
CFD sale settlementsGWh(172)(279)(176)(349)(625)
Spot exposed purchases / CFD settlementGWh(693)(750)(724)(1,416)(1,608)
Spot revenue and settlement on acquired generation (GWAP)$/MWh48.94 147.21 101.47 75.93 162.36
Spot purchases and settlement on CFDs sold (LWAP)$/MWh(53.37)(153.47)(111.06)(82.84)(170.70)
LWAP/GWAP%109%104%109%109%105%
Gas used in internal generationPJ0.5 0.9 1.4 1.9 2.6
Gas storage net movement (extraction) / injectionPJ1.1 0.4 0.4 1.5 0.5
ContactTotal customer connections#582,000 541,000 580,000 581,000 538,000

Contact Energy / Monthly Operating Report
8
Material themeMeasureUnitQ4 FY22Q4 FY21
Climate Change
Greenhouse Gas (GHG)Emissions from generation assets
1
kt CO
2
-e291313
GHG intensity of generation
2
kt CO
2
-e / GWh0.1420.138
Water
Water Freshwater take
3
Million cubic
metres
0.560.80
Non-consumptive water usage
4
Million cubic
metres
2,8553,577
Geothermal fluid discharge to awa (rivers)
Million cubic
metres
4.014.26
Biodiversity
Native rakau(trees) planted by Contact
5
#7,947300
Pests caught
6
#1,154982
Community
Community initiatives and organisations supported#59*
Inclusion and
Diversity
Board
% Women/ %
Men
57% / 43% 57% / 43%
Inclusion and
Diversity
Key Management Personnel
% Women/ %
Men
20% / 80% 38% / 62%
Inclusion and
Diversity
Employee Gender balance
7
% Women/ %
Men
46% / 52%45% / 54%
1 Scope 1 –Stationary combustion. In FY21 stationary combustion was 99.97% of Contact’s total Scope 1 emissions
2 Carbon equivalent from stationary combustion / electricity generated and sold via the spot wholesale market
3 Freshwater taken to support operations at geothermal and thermal
4 Water that flows through our Roxburgh power station and cooling water for our geothermal power stations
5 Does not include DrylandsCarbon/Forest Partners activities
6 Predominantly stoats, rats and possums
7 Includes all permanent, fixed term and casual employees. 1.4% and 0.1% unspecified in Q4 FY22 and Q4 FY21respectively.
* Data has not historically been collected by quarter
Note: This information is updated quarterly (September, December, March, June)

Contact Energy / Monthly Operating Report
9
investor.centre@contactenergy.co.nz
contact.co.nz/aboutus/investor-centre
+64 21 072 8578
Investors
Matthew Forbes –Acting CFO
contact.co.nz
@ContactEnergy
Linkedin.com/company/contact-energy-ltd
Facebook.com/ContactEnergy
Youtube.com/ContactEnergy
To find out more about Contact Energy