This is a summary of energy for the previous week, ending Sunday at midnight.
The data is uploaded every Monday at 9.15am.
Week Ending Sunday 31 Aug 2025
Energy Totals GWh Previous Week
| Generation GWh |
Supply GWh |
Max Daily Energy GWh |
|
|---|---|---|---|
| North Island | 536.00 | 540.40 | 79.40 Mon 25/08/25 |
| South Island | 319.70 | 314.20 | 47.20 Tue 26/08/25 |
| New Zealand | 855.60 | 854.60 | 126.60 Mon 25/08/25 |
| Net HVDC Transfer | 5.5 North |
Energy Totals GWh Year to Date
| Generation GWh |
Supply GWh |
Max Daily Energy GWh |
|
|---|---|---|---|
| North Island | 16974.70 | 17433.60 | 89.70 Wed 20/08/25 |
| South Island | 10862.70 | 10354.30 | 49.80 Tue 19/08/25 |
| New Zealand | 27837.40 | 27787.90 | 138.40 Wed 20/08/25 |
| Net HVDC Transfer | 508.4 North |
Peak Half Hour Supply (Average MW)
| Previous Week MW |
Year to Date MW |
|
|---|---|---|
| North Island | 4216.30 Mon 25/08/25 07:30 | 4890.20 Tue 19/08/25 18:00 |
| South Island | 2425.80 Sun 31/08/25 18:30 | 2438.00 Wed 13/08/25 07:30 |
| New Zealand | 6571.50 Mon 25/08/25 07:30 | 7303.00 Fri 25/07/25 08:00 |