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New Zealand Electricity Market Wrap
August 2025
- Over the month of August, ASX Otahuhu calendar year 2026 swap price moved up $5.74 to finish the month at $202.85. This is a price separation of -$19.34 from the next calendar year 2027.
- Over the month of August, ASX Benmore calendar year 2026 swap price moved up $8.57 to finish the month at $179.24. This is a price separation of -$20.65 from the next calendar year 2027.
- Total traded volume equaled 57,905 lots which is equivalent to 9.7479 million MWh.
- The daily average traded volume was 2,757.38 lots and total trade volume is up 37.54% from 2024.
- Total Open interest is 106,057 lots, up 12.22% from 2024
- Futures OI = 85,222 (down 5.95%)
- Options OI = 20,835 (up 434.23%)
Contract | Month Open | High | Low | Month Close | Volume | Open Interest |
August Otahuhu | 155.00 | 186.70 | 155.00 | 177.20 | 900 | 1456 |
August Benmore | 140.50 | 178.85 | 140.50 | 172.50 | 1354 | 1907 |
Otahuhu | 149.65 | 182.85 | 138.50 | 151.80 | 1515 | 955 |
Benmore | 139.75 | 170.35 | 128.00 | 145.50 | 1978 | 1442 |
Q3 2025 Otahuhu | 137.50 | 155.70 | 137.50 | 145.40 | 297 | 5205 |
Q3 2025 Benmore | 126.80 | 145.95 | 126.80 | 139.15 | 556 | 3395 |