April 2021 Operating Report

Monthly Operating Report
April 2021
Putting our energy where it matters

Contact Energy / Monthly Operating Report
2
»The Customer business recorded:
•Mass market electricity and gas sales of 305GWh (April 2020:
300 GWh)
•Mass market electricity and gas netback of $104.91/MWh
(April 2020 : $95.66/MWh)
»The Wholesale business recorded:
•Contracted Wholesale electricity sales, including that sold to
the Customer business, totalled 655GWh (April 2020 :
548GWh)
•Electricity and steam net revenueof $107.26/MWh (April 2020:
$79.81/MWh)
•Electricity generated (or acquired) of 745 GWh (April 2020: 585
GWh)
•The unit generation cost, which includes acquired generation
was $56.67/MWh (April 2020 : $24.89/MWh)
•Own generation cost in the month of $49.63/MWh (April
2020 : $20.72/MWh)
»Otahuhu futures settlement wholesale price for
the 3
rd
quarter of 2021 (ASX):
•As at 04 May 2021: $290/MWh
•As at 30 April 2021: $265/MWh
•As at 31 March 2021 : $285/MWh
»As at 04 May 2021, South Island controlled
storage was 61% of mean (29 April 2021: 61%)
and North Island controlled storage was 37% of
mean (29 April 2021: 44%)
•As at04 May 2021, total Clutha scheme
storage (including uncontrolled storage)
was 72% of mean
•Inflows into Contact’s Clutha catchment
for April 2021 were 116% of mean
(March 2021: 95%
February 2021: 65%
January 2021: 81%)
For the month of April 2021

0
100
200
300
CY21CY22CY23CY24
$/MWh
30/06/202031/03/202130/04/2021
0
100
200
300
CY21CY22CY23CY24
$/MWh
30/06/202031/03/202130/04/2021
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1000
1500
2000
2500
3000
3500
4000
4500
MayJunJulAugSepOctNovDecJanFebMarApr
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
Apr-21Apr-20Mar-21
0%
20%
40%
60%
80%
100%
<$35$36-$60$61-$85$86-$110$111-$135$136-$160>$160
% of trading
periods
Apr-21Apr-20Mar-21
0
50
100
150
200
250
300
$/MWh
FY20 BENFY21 BENFY20 OTAFY21 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

Contact Energy / Monthly Operating Report
5
Total national demand
Regional demand change (%) on March 2020
»New Zealand electricity demand was up 2.1% on March 2020 (down 1.9% on
March 2019):
•Cumulative 12 months demand for Apr 2020 to Mar 2021 of 40,948 GWh is
down 1.9% to the prior comparative period.
Source: Contact and Electricity Authority grid demand (reconciled) http://www.emi.ea.govt.nz
FY19, 20 and 21 respectively
Regional demand is excluding NZAS
Nationwide
temperatures for March
2021 were 16.3º, 0.9º
higher than March
2020: 15.4º
6%
9%
3%
1%
(1%)
5%
6%
14%
(2%)
4%
(9%)
(5%)
2%
5%
6%
10%
1%
1%
-
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
JulAugSepOctNovDecJanFebMarAprMayJun
GWh
North IslandSouth Island (exc. NZAS)NZAS
Information for April not yet available.

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40
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120
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100
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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
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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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Customer
Generation mix, gross sales position and unit generation cost (FY20 and 21 respectively)
Retail sales volumes and netback (FY20 and 21 respectively)

Contact Energy / Monthly Operating Report
7
Measure
The month ended The month ended The month ended Ten months endedTen months ended
April 21April 20March 21April 21April 20
Customer
Mass market electricity salesGWh
255 249 235 2,733 2,850
Retail gas salesGWh
50 50 42 634 680
Mass market electricity and gas salesGWh
305 300 277 3,367 3,531
Average electricity sales price$/MWh
251.52 253.78 254.26 249.02 245.49
Electricity direct pass thru costs$/MWh
(112.38)(122.41)(118.46)(112.37)(119.79)
Cost to serve$/MWh
(21.64)(23.81)(23.35)(19.44)(19.05)
Customer netback$/MWh
104.91 95.66 102.77 100.50 91.19
Energy cost$/MWh
(81.11)(75.08)(93.16)(85.77)(78.80)
Actual electricity line losses%
4%2%7%7%6%
Retail gas salesPJ
0.2 0.2 0.2 2.3 2.4
Electricity ICPs#
404,500 407,000 403,500 407,000 409,500
Gas ICPs#
65,000 65,000 64,500 64,500 65,500
Broadband connections#
47,000 23,000 44,000 37,000 19,000
Wholesale
Electricity sales to Customer businessGWh
265 253 253 2,936 3,021
Electricity sales to Commercial and IndustrialGWh
125 139 160 1,587 1,873
Electricity CFD salesGWh
265 156 197 1,984 1,607
Contracted electricity salesGWh
655 548 609 6,507 6,502
Steam salesGWh
46 19 55 589 497
Total electricity and steam net revenue$/MWh
107.46 79.81 84.87 86.32 78.36
C&I netback (at the ICP)$/MWh
119.92 81.30 86.54 83.67 83.24
C&I line losses%
9%4%6%5%5%
Thermal generationGWh
165 11 77 1,189 1,053
Geothermal generationGWh
255 291 274 2,570 2,768
Hydro generationGWh
242 256 242 3,032 3,106
Spot electricity salesGWh
662 557 593 6,790 6,927
Electricity sales -DirectGWh
5 4 7 77 75
Acquired generationGWh
79 23 76 401 255
Electricity generated (or acquired)GWh
745 585 676 7,268 7,258
Unit generation cost (including acquired generation)$/MWh
(56.67)(24.89)(44.51)(39.82)(34.37)
Spot electricity purchasesGWh
(386)(388)(406)(4,446)(4,819)
CFD sale settlementsGWh
(265)(156)(197)(1,984)(1,607)
Spot exposed purchases / CFD settlementGWh
(650)(544)(603)(6,430)(6,427)
Spot revenue and settlement on acquired generation (GWAP)$/MWh
265.01 46.06 252.36 155.79 90.41
Spot purchases and settlement on CFDs sold (LWAP)$/MWh
(280.16)(49.76)(257.58)(164.48)(96.45)
LWAP/GWAP%
106%108%102%106%107%
Gas used in internal generationPJ
1.5 0.2 0.9 11.7 10.7
Gas storage net movement (extraction) / injectionPJ
0.3 0.6 0.4 0.2 1.9
Contact
Total customer connections#
526,000 497,000 521,000 515,500 497,000

Contact Energy / Monthly Operating Report
8
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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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