May 2022 Operating Report

Monthly Operating Report
May 2022

Contact Energy / Monthly Operating Report
2
»The Customer business recorded:
•Mass market electricity and gas sales of 384GWh (May 2021:
372GWh)
•Mass market netback of $108.00/MWh (May 2021:
$103.79/MWh)
»The Wholesale business recorded:
•Contracted Wholesale electricity sales, including that sold to
the Customer business, totalled 694GWh (May 2021:
846GWh)
•Electricity and steam net revenueof $111.35/MWh (May 2021:
$122.68/MWh)
•Electricity generated (or acquired) of 736GWh (May 2021:
893GWh)
•The unit generation cost, which includes acquired generation
was $46.38/MWh (May 2021: $58.13/MWh)
•Own generation cost in the month of $42.13/MWh (May
2021: $53.41MWh)
»Otahuhu futures settlement wholesale price for the
3
rd
quarter of 2022 (ASX):
•As at 03 June 2022: $215/MWh
•As at 31 May 2022: $228/MWh
•As at 29 Apr 2022: $232/MWh
»As at 6 June 2022, South Island controlled storage
was 74% of mean and North Island controlled
storage was 117% of mean
•As at 6 June 2022, total Clutha scheme
storage (including uncontrolled storage) was
68% of mean
•Inflows into Contact’s Clutha catchment for
May 2022 were 110% of mean
(April 2022: 82%, March 2022: 51%,
February 2022: 156%)
»As at 1 June 2022, Contact’s contracted gas volume
(including contracted swaps) for the next 12 months
is 15.62PJ*
For the month of May 2022
* As notified by suppliers, actual gas received is dependent on field delivery

0
500
1000
1500
2000
2500
3000
3500
4000
4500
JunJulAugSepOctNovDecJanFebMarAprMay
GWh
South Island ActualNorth Island Actual
South Island post-market meanNational post-market mean
0
50
100
150
200
CY22CY23CY24CY25
$/MWh
30/06/202129/04/202231/05/2022
0
100
200
300
CY22CY23CY24CY25
$/MWh
30/06/202129/04/202231/05/2022
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
May-22May-21Apr-22
0%
20%
40%
60%
80%
100%
<$35$36-$60$61-$85$86-$110$111-$135$136-$160>$160
% of trading
periods
May-22May-21Apr-22
0
50
100
150
200
250
300
$/MWh
FY21 BENFY22 BENFY21 OTAFY22 OTA
Wholesale electricity pricing
Otahuhu
Contact Energy / Monthly Operating Report
4
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
5
Total national demand
Regional demand change (%) on May 2021
»New Zealand electricity demand was down 6.5% on May 2021 (down 3.7% on
May 2020):
•Cumulative 12 months demand for June 2021 to May 2022 of 40,571 GWh is
2.2% lower than 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 May
2022 were 12.6ºC,
1.1ºC higher than May
2021: 11.5ºC
(6%)
2%
(1%)
(5%)
(51%)
(4%)
(6%)
(1%)
(8%)
(10%)
(30%)
(3%)
(5%)
(11%)
(5%)
(19%)
(0%)
(18%)
-
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
6
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
7
Measure
The month ended The month ended The month ended Eleven months endingEleven months ending
May 22May 21April 22May 22May 21
CustomerMass market electricity salesGWh315 307 256 3,082 3,039
Retail gas salesGWh69 65 55 694 699
Mass market electricity and gas salesGWh384 372 312 3,776 3,739
Average electricity sales price$/MWh252.17 246.34 258.00 252.94 248.75
Electricity direct pass thru costs$/MWh(117.57)(112.82)(125.37)(118.75)(115.52)
Cost to serve$/MWh(15.31)(15.61)(18.69)(16.47)(16.17)
Customer netback$/MWh108.00 103.79 104.59 105.13 100.92
Energy cost$/MWh(112.18)(92.92)(98.94)(99.25)(86.48)
Actual electricity line losses%7%7%7%7%7%
Retail gas salesPJ0.2 0.2 0.2 2.5 2.5
Electricity ICPs#430,500 405,500 428,500 421,000 407,000
Gas ICPs#71,000 65,000 70,500 68,500 64,500
Broadband connections#69,000 48,000 67,000 61,500 38,000
WholesaleElectricity sales to Customer businessGWh338 331 277 3,307 3,267
Electricity sales to Commercial and IndustrialGWh131 133 133 1,331 1,720
Electricity CFD salesGWh225 381 211 2,725 2,365
Contracted electricity salesGWh694 846 622 7,363 7,353
Steam salesGWh25 36 35 577 625
Total electricity and steam net revenue$/MWh111.35 122.68 98.69 99.21 90.38
C&I netback (at the ICP)$/MWh132.28 97.04 115.23 96.35 84.72
C&I line losses%4%5%4%5%5%
Thermal generationGWh141 220 139 881 1,408
Geothermal generationGWh289 276 280 3,006 2,845
Hydro generationGWh262 314 178 3,622 3,346
Spot electricity salesGWh692 809 596 7,509 7,599
Electricity sales - DirectGWh3 4 5 79 80
Acquired generationGWh41 80 83 388 481
Electricity generated (or acquired)GWh736 893 684 7,976 8,160
Unit generation cost (including acquired generation)$/MWh(46.38)(58.13)(60.25)(38.56)(41.82)
Spot electricity purchasesGWh(466)(461)(406)(4,560)(4,907)
CFD sale settlementsGWh(225)(381)(211)(2,725)(2,365)
Spot exposed purchases / CFD settlementGWh(691)(842)(617)(7,285)(7,272)
Spot revenue and settlement on acquired generation (GWAP)$/MWh208.87 286.35 191.63 135.54 170.15
Spot purchases and settlement on CFDs sold (LWAP)$/MWh(219.35)(294.07)(208.25)(145.65)(179.49)
LWAP/GWAP%105%103%109%107%105%
Gas used in internal generationPJ1.3 1.9 1.3 9.5 13.6
Gas storage net movement (extraction) / injectionPJ(0.9)(0.4)(0.6)(0.1)(0.2)
ContactTotal customer connections#577,000 527,000 572,000 558,000 516,500

Contact Energy / Monthly Operating Report
8
Material themeMeasureUnitQ3 FY22Q3 FY21
Climate ChangeEmissions from generation assets
1
kt CO
2
-e236270
Greenhouse Gas (GHG) intensity of generation
2
kt CO
2
-e / GWh0.1310.154
WaterFreshwater take
3
Million cubic metres0.580.86
Non-consumptive water usage
4
Million cubic metres3,1383,244
Geothermal fluid discharge to awa (rivers)Million cubic metres3.064.44
BiodiversityNative rākau(trees) planted by Contact
5
#-4,948
Pests caught
6
#989715
Inclusion and Diversity
Employee Gender Balance
7, 8
•Board – The Company Directors
•Key Management Personnel - Leadership Team including CEO
•Other Executives/General Managers – Managers that oversee and influence organisational decisions
•Senior Management – Managers that oversee a business function within a business unit
•Other Managers –All other managers
•Non-Managers – Those without direct reports
Total
%
Women / Men
57% / 43%
20% / 80%
40% / 60%
39% / 61%
34% / 66%
48% / 51%
46% / 53%
Women / Men
57% / 43%
27% / 73%
40% / 60%
44% / 56%
30% / 70%
47% / 53%
44% / 55%
Community wellbeingCommunity initiatives and organisations supported#15*
Access to energyCustomer accepted (after standard credit checking / after prepay)%93% / 96%94% / 95%
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 and includes Council take in Q2 FY22
4
Water that flows through our Roxburgh power station and cooling water for our geothermal power stations
5
Does not include DrylandsCarbonactivities
6
Predominantly stoats, rats and possums
7
Categories are aligned with the Diversity Reporting Framework provided by Champions for Change
8
Includes all performance, fixed term and casual employees.
* 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 – GM Corporate Finance
contact.co.nz
@ContactEnergy
Linkedin.com/company/contact-energy-ltd
Facebook.com/contactenergy
Youtube.com/ContactEnergy
To find out more about Contact Energy