September 2022 Operating Report

Monthly Operating Report
September 2022

Contact Energy / Monthly Operating Report
2
»The Customer business recorded:
•Mass market electricity and gas sales of 405GWh
(September 2021: 389GWh)
•Mass market netback of $110.35/MWh (September 2021:
$101.91/MWh)
»The Wholesale business recorded:
•Contracted Wholesale electricity sales, including that
sold to the Customer business, totalled 675GWh
(September 2021: 690GWh)
•Electricity and steam net revenueof $101.89/MWh
(September 2021: $95.24/MWh)
•Electricity generated (or acquired) of 684GWh
(September 2021: 751GWh)
•The unit generation cost, which includes acquired
generation was $35.85/MWh (September 2021:
$38.63/MWh)
•Own generation cost in the month of
$30.20/MWh (September 2021: $29.00/MWh)
»Otahuhu futures settlement wholesale price
for the 4
th
quarter of 2022 (ASX):
•As at7 October 2022: $93/MWh
•As at30 September 2022: $94/MWh
•As at31 August 2022: $80/MWh
»As at9 October 2022, South Island controlled
storage was 148% of mean and North Island
controlled storage was 135% of mean
•As at9 October 2022, total Clutha
scheme storage was 113% of mean
•Inflows into Contact’s Clutha catchment
for September 2022 were 112% of mean.
(August 2022: 216% July 2022: 159%, June
2022: 120%)
»As at1 October 2022, Contact’s contracted gas
volume (including contracted swaps) for the
next 12 months is 13.5PJ*
For the month of September 2022
* Forecast gas volumes 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
30/06/202131/08/202230/09/2022
0
100
200
300
CY22CY23CY24CY25
$/MWh
30/06/202131/08/202230/09/2022
0
500
1000
1500
2000
2500
3000
3500
4000
4500
OctNovDecJanFebMarAprMayJunJulAugSep
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
Sep-22Sep-21Aug-22
0%
20%
40%
60%
80%
100%
<$35$36-$60$61-$85$86-$110$111-$135$136-$160>$160
% of trading
periods
Sep-22Sep-21Aug-22
0
50
100
150
200
250
JulAugSeptOctNovDecJanFebMarAprMayJun
$/MWh
FY22 BENFY23 BENFY22 OTAFY23 OTA
Wholesale electricity pricing
Otahuhu
Contact Energy / Monthly Operating Report
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Benmore
Distribution of wholesale market price by trading periods

(2%)
14%
(3%)
(2%)
(42%)
(3%)
(3%)
1%
(1%)
(2%)
(27%)
5%
1%
(3%)
(2%)
(16%)
2%
(8%)
Contact Energy / Monthly Operating Report
5
Total national demand
Regional demand change (%) on September 2021
»New Zealand electricity demand was down 2.5% on September 2021
(down 4.1% on September 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
September 2022 were
11.0ºC, 0.3ºC warmer
than September 2021:
10.7ºC
-
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
JulAugSepOctNovDecJanFebMarAprMayJun
GWh
North IslandSouth Island (exc. NZAS)NZAS

-
20
40
60
80
100
120
0
100
200
300
400
500
600
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
$/MWh
GWh
Mass market electricity salesRetail gas salesNetback
-
10
20
30
40
50
60
70
80
90
100
-
100
200
300
400
500
600
700
800
900
1,000
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
$/MWh
GWh
GeothermalHydroThermal
Acquired generationContracted electricity salesUnit generation cost (RHS)
Wholesale
Contact Energy / Monthly Operating Report
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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 Three months endingThree months ending
September 22September 21August 22September 22September 21
RetailMass market electricity salesGWh324 313 368 1,087 1,033
Retail gas salesGWh81 76 91 260 277
Mass market electricity and gas salesGWh405 389 458 1,346 1,310
Average electricity sales price$/MWh250.60 247.84 248.97 248.79 243.73
Electricity direct pass thru costs$/MWh(115.14)(114.51)(109.06)(110.93)(111.72)
Cost to serve$/MWh(14.74)(15.10)(12.49)(11.33)(13.25)
Customer netback$/MWh110.35 101.91 109.58 110.14 102.21
Energy cost$/MWh(103.33)(94.14)(118.74)(118.58)(102.42)
Actual electricity line losses%6%9%6%6%7%
Retail gas salesPJ0.3 0.3 0.3 0.9 1.0
Electricity ICPs#431,000 415,500 431,500 431,500 411,500
Gas ICPs#71,000 67,000 71,000 71,000 66,500
Broadband connections#75,000 57,000 74,000 73,500 55,000
WholesaleElectricity sales to Customer businessGWh345 344 393 1,160 1,112
Electricity sales to Commercial and IndustrialGWh136 117 136 400 345
Electricity CFD salesGWh193 229 172 542 853
Contracted electricity salesGWh675 690 701 2,102 2,310
Steam salesGWh63 70 68 165 177
Total electricity and steam net revenue$/MWh101.89 95.24 102.74 107.60 113.95
C&I netback (at the ICP)$/MWh115.69 93.29 131.73 130.61 99.86
C&I line losses%4%2%4%4%2%
Thermal generationGWh17 36 31 203 298
Geothermal generationGWh272 262 283 842 852
Hydro generationGWh349 398 340 1,004 1,220
Spot electricity salesGWh639 696 654 2,049 2,370
Electricity sales -DirectGWh8 9 8 20 21
Acquired generationGWh3746 62 99 99
Electricity generated (or acquired)GWh684 751 724 2,168 2,490
Unit generation cost (including acquired generation)$/MWh(35.85)(38.63)(37.37)(36.79)(37.99)
Spot electricity purchasesGWh(473)(452)(521)(1,541)(1,436)
CFD sale settlementsGWh(193)(229)(172)(542)(853)
Spot exposed purchases / CFD settlementGWh(666)(681)(693)(2,083)(2,289)
Spot revenue and settlement on acquired generation (GWAP)$/MWh57.16 77.87 48.94 70.03 136.96
Spot purchases and settlement on CFDs sold (LWAP)$/MWh(64.45)(90.47)(53.37)(76.96)(146.83)
LWAP/GWAP%113%116%109%110%107%
Gas used in internal generationPJ0.4 0.5 0.5 2.3 3.1
Gas storage net movement (extraction) / injectionPJ0.2 0.1 1.1 1.7 0.6
ContactTotal customer connections#582,000 547,000 582,000 581,500 541,000

Contact Energy / Monthly Operating Report
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Material themeMeasureUnit
Q1 FY23Q1 FY22
Climate Change
Greenhouse Gas (GHG)Emissions from generation assets
1
kt CO
2
-e179228
GHG intensity of generation
2
kt CO
2
-e /
GWh
0.0870.096
Water
Water Freshwater take
3
Million cubic
metres
2.300.42
Non-consumptive water usage
4
Million cubic
metres
5,3545,231
Geothermal fluid discharge to awa (rivers)
Million cubic
metres
4.312.08
Biodiversity
Native rakau(trees) planted by Contact
5
#31,06028,825
Pests caught
6
#9191009
Community
Community initiatives and organisations supported#1317
Inclusion and
Diversity
Board
% Women/ %
Men
57% / 43%57% / 43%
Inclusion and
Diversity
Key Management Personnel
% Women/ %
Men
18% / 82%33% / 67%
Inclusion and
Diversity
Employee Gender balance
7
% Women/ %
Men
48% / 51%45% / 55%
1 Scope 1 –Stationary combustion. In FY22 stationary combustion was 99.96% 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. 1.2% and 0.1% unspecified in Q1 FY23 and Q1 FY22respectively.
* Data has not historically been collected by quarter
Note: This information is updated quarterly (September, December, March, June)

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