September 2021 Operating Report

Monthly Operating Report
September 2021
Putting our energy where it matters

Contact Energy / Monthly Operating Report
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»The Customer business recorded:
•Mass market electricity and gas sales of 389GWh (September
2020: 398GWh)
•Mass market electricity and gas netback of $101.91/MWh
(September 2020: $101.48/MWh)
»The Wholesale business recorded:
•Contracted Wholesale electricity sales, including that sold to
the Customer business, totalled 690GWh (September 2020:
725 GWh)
•Electricity and steam net revenueof $95.10/MWh (September
2020: $83.78/MWh)
•Electricity generated (or acquired) of 751 GWh (September
2020: 831 GWh)
•The unit generation cost, which includes acquired generation
was $38.48/MWh (September 2020: $37.59/MWh)
•Own generation cost in the month of $28.87/MWh
(September 2020 : $35.21MWh)
»Otahuhu futures settlement wholesale price for
the 1
st
quarter of 2022 (ASX):
•As at 11 Oct 2021: $111/MWh
•As at 30 Sep 2021: $127/MWh
•As at 31 Aug 2021 : $140/MWh
»As at 11 Oct 2021, South Island controlled
storage was 141% of mean and North Island
controlled storage was 115% of mean
•As at11 Oct 2021, total Clutha scheme
storage (including uncontrolled storage)
was 134% of mean
•Inflows into Contact’s Clutha catchment
for September 2021 were 154% of mean
(August 2021: 163%
July 2021: 169%
June 2021: 131%)
»As at14 October 2021, Contact’s contracted
gas volume (including contracted swaps) is
13.78PJ*
For the month of September 2021
* As notified by suppliers, actual gas received is dependent on field delivery

0
50
100
150
200
CY21CY22CY23CY24
$/MWh
30/06/202031/08/202130/09/2021
0
100
200
CY21CY22CY23CY24
$/MWh
30/06/202031/08/202130/09/2021
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
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12 MONTHS
Otahuhu
Benmore

0%
20%
40%
60%
<$35$36-$60$61-$85$86-$110$111-$135$136-$160>$160
% of trading
periods
Sep-21Sep-20Aug-21
0%
20%
40%
60%
<$35$36-$60$61-$85$86-$110$111-$135$136-$160>$160
% of trading
periods
Sep-21Sep-20Aug-21
0
50
100
150
200
250
300
$/MWh
FY21 BENFY22 BENFY21 OTAFY22 OTA
Wholesale electricity pricing
Otahuhu
Contact Energy / Monthly Operating Report
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Benmore
Distribution of wholesale market price by trading periods
Jul Aug Sept Oct Nov Dec Jan Feb Mar Apr May Jun

-
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
JulAugSepOctNovDecJanFebMarAprMayJun
GWh
North IslandSouth Island (exc. NZAS)NZAS
Contact Energy / Monthly Operating Report
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Total national demand
Regional demand change (%) on September 2020
»New Zealand electricity demand was down 1.6% on September 2020 (down
1.5% on September 2019):
•Cumulative 12 months demand for October 2020 to September 2021 of
41,463 GWh is up 0.6% to the prior comparative period.
Source: Contact and Electricity Authority grid demand (reconciled) http://www.emi.ea.govt.nz
FY20, 21 and 22 respectively
Regional demand is excluding NZAS
Nationwide
temperatures for
September 2021 were
10.7ºC, 0.3ºC lower
than September 2020:
11.0ºC
(3%)
5%
2%
0%
(0%)
2%
3%
(7%)
(3%)
1%
0%
(10%)
(4%)
(5%)
1%
(1%)
4%
(3%)

-
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)
-
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
Wholesale
Contact Energy / Monthly Operating Report
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Customer
Generation mix, gross sales position and unit generation cost (FY21 and 22 respectively)
Retail sales volumes and netback (FY21 and 22 respectively)

Contact Energy / Monthly Operating Report
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Measure
The month ended The month ended The month ended Three months endingThree months ending
September 21September 20August 21September 21September 20
Customer
Mass market electricity salesGWh
313 314 342 1,033 1,065
Retail gas salesGWh
76 84 94 277 283
Mass market electricity and gas salesGWh
389 398 436 1,310 1,347
Average electricity sales price$/MWh
247.84 244.66 243.18 243.73 241.39
Electricity direct pass thru costs$/MWh
(111.23)(108.47)(109.71)(108.97)(105.85)
Cost to serve$/MWh
(18.05)(15.12)(15.15)(15.90)(15.76)
Customer netback$/MWh
101.91 101.48 102.69 102.21 100.13
Energy cost$/MWh
(94.14)(83.99)(102.04)(102.42)(94.09)
Actual electricity line losses%
9%9%7%7%7%
Retail gas salesPJ
0.3 0.3 0.3 1.0 1.0
Electricity ICPs#
415,500 410,500 411,000 411,500 413,000
Gas ICPs#
67,000 64,500 66,500 66,500 64,500
Broadband connections#
57,000 32,000 55,000 55,000 30,000
Wholesale
Electricity sales to Customer businessGWh
344 345 369 1,112 1,146
Electricity sales to Commercial and IndustrialGWh
117 160 111 345 462
Electricity CFD salesGWh
229 220 279 853 695
Contracted electricity salesGWh
690 725 758 2,310 2,302
Steam salesGWh
70 76 68 177 181
Total electricity and steam net revenue$/MWh
95.10 83.78 110.57 113.78 92.54
C&I netback (at the ICP)$/MWh
93.29 84.05 88.46 99.86 89.50
C&I line losses%
2%4%-1%2%5%
Thermal generationGWh
36 179 76 298 707
Geothermal generationGWh
262 266 295 852 798
Hydro generationGWh
398 356 392 1,220 1,030
Spot electricity salesGWh
696 801 763 2,370 2,536
Electricity sales -DirectGWh
9 9 9 21 20
Acquired generationGWh
46 21 24 99 49
Electricity generated (or acquired)GWh
751 831 795 2,490 2,605
Unit generation cost (including acquired generation)$/MWh
(38.48)(37.59)(34.92)(37.83)(39.20)
Spot electricity purchasesGWh
(452)(495)(471)(1,436)(1,588)
CFD sale settlementsGWh
(229)(220)(279)(853)(695)
Spot exposed purchases / CFD settlementGWh
(681)(715)(750)(2,289)(2,282)
Spot revenue and settlement on acquired generation (GWAP)$/MWh
77.87 128.39 147.21 136.96 127.87
Spot purchases and settlement on CFDs sold (LWAP)$/MWh
(90.47)(137.20)(153.47)(146.83)(136.34)
LWAP/GWAP%
116%107%104%107%107%
Gas used in internal generationPJ
0.5 1.7 0.9 3.1 6.1
Gas storage net movement (extraction) / injectionPJ
0.1 (0.2)0.4 0.6 (0.7)
Contact
Total customer connections#
547,000 512,000 541,000 541,000 510,500

Contact Energy / Monthly Operating Report
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Material themeMeasureUnitQ1 FY22Q1 FY21
Climate ChangeEmissions from generation assets
1
kt CO
2
-e228357
Greenhouse Gas (GHG) intensity of generation
2
kt CO
2
-e / GWh0.0960.141
WaterFreshwater take
3
Million cubic metres0.420.26
Non-consumptive water usage
4
Million cubic metres5,2314,142
Geothermal fluid discharge to awa (rivers)Million cubic metres2.082.22
BiodiversityNative rākau(trees) planted by Contact
5
#28,825*
Pests caught
6
#1,009*
Community wellbeingCommunity initiatives and organisations supported#17*
Access to energyCustomer accepted (after standard credit checking / after prepay)%93% / 96%90% / 92%
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 DrylandsCarbonactivities
6
Predominantly stouts, rats and possums
* Data has not historically been collected by quarter

Contact Energy / Monthly Operating Report
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contact.co.nz/aboutus/investor-centre
+64 21 072 8578
Investors
Matthew Forbes –GM Corporate Finance
contact.co.nz
@ContactEnergy
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