Quarterly Operating Report | Q3-23| December 2022

Quarterly Insights

Spot prices suppressed

Spot pricing over the period was generally low, with weekly average Benmore pricing averaging $38/MWh and Haywards averaging $44/MWh.

Inflows and Storage

National storage rose slightly in absolute terms across the quarter, however ended lower compared to the 10-year average - starting at 143% of the 10-year average and finishing at 116%. Manawa inflows were strong across the period, up 48 GWh (11%) on average. This was driven by very strong North Island inflows, partially offset by below-average South Island inflows. YTD Manawa inflows are 17% above average. Manawa storage increased to end the period at 133% of average.

Generation volumes

Total Q3-23 generation volumes were 481 GWh. This is 4% higher than the pcp due to North Island volumes being 35% higher than the pcp offset by South Island volumes 28% lower. YTD generation volumes are in line with the pcp in total, however this is made up of higher North Island volumes (27% higher), and lower South Island volumes (24% lower).

The selective use of stored water in the South Island (due to lower inflows and deliberate storage decisions) is the main driver for the Q3 GWAP/TWAP of 1.40 for the South Island.

C&I customer volumes

The recent volume reduction in C&I sales is principally due to not re-contracting a single, large, wholesale-priced customer. Over the recent 3-6 months we have renewed contracts with several large C&I customers despite competitive and volatile market conditions and continue to see positive opportunities for growth in the segment.

Q U A R T E R L Y O P E R A T I N G R E P O R T | Q 3 - 2 3

Wholesale Electricity Market

National Demand

National Controlled Storage

5,000

4,000

GWh

3,000

2,000

1,000

-

Jan

Feb Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov Dec

10 year avg

2019

2020

2021

2022

SOURCE: NZX Hydro

Weekly average prices - 12 months to end of Dec 2022

$300 $250 $200

$/MWh

$150

$100

$50

$-

Jan-22Feb-22Mar-22Apr-22May-22Jun-22

Jul-22Aug-22Sep-22Oct-22Nov-22Dec-22

Benmore

Haywards

Benmore 10 year average

Haywards 10 year average

GWh

$/MWh

4,100

3,900

3,700

3,500

3,300

3,100

2,900

2,700

2,500

200

150

100

50

0

Jan

Feb Mar

Apr May

Jun

Jul

Aug

Sep

Oct Nov Dec

2018

2019

2020

2021

2022

Benmore ASX Futures Settlement Prices

CY-23

CY-24

CY-25

31 March 2022

30 June 2022

30 September 2022

30 December 2022

Q U A R T E R L Y O P E R A T I N G R E P O R T | Q 3 - 2 3

Generation

Monthly Generation Volumes

250

200

150

GWh

100

50

0

Apr-18

Apr-19

Apr-20

Apr-21

Apr-22

South Island Hydro

North Island Hydro

Q3-23

Q3-23

Q3-23 GWAP/TWAP

NI Generation

SI Generation

NI

1.08

35%

28%

SI

1.40

vs pcp

vs pcp

$48/MWh

New Zealand Load Weighted Average Price (LWAP)

$49/MWh

New Zealand Generation Weighted Average Price (GWAP)

NOTE: Q3 Prices

Percentage of Potential Revenue Achieved

100%

90%

80%

70%

60%

50%

40%

30%

20%

10%

0%

GWAP / TWAP

190%

170%

150%

130%

110%

90%

NI GWAP/TWAP

SI GWAP/TWAP

Q U A R T E R L Y O P E R A T I N G R E P O R T | Q 3 - 2 3

Generation

Manawa Lake Levels - % of long term average

160%

140%

120%

100%

80%

60%

40%

20%

0%

Apr May Jun

Jul

Aug Sep

Oct Nov Dec

Jan

Feb Mar

FY-22FY-23

Inflow variance to long term average

150

100

GWh

50

0

-50

Apr May Jun

Jul

Aug Sep

Oct Nov Dec Jan

Feb Mar

FY-22

FY-23

C&I Customer Volumes

140

120

100

80

GWh

60

40

20

0

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

FY-21FY-22FY-23

Q U A R T E R L Y O P E R A T I N G R E P O R T | Q 3 - 2 3

Attachments

  • Original Link
  • Original Document
  • Permalink

Disclaimer

Manawa Energy Ltd. published this content on 17 April 2023 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 17 April 2023 01:26:08 UTC.