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 10 May 2026
Energy Totals GWh Previous Week
| Generation GWh |
Supply GWh |
Max Daily Energy GWh |
|
|---|---|---|---|
| North Island | 482.60 | 488.20 | 73.30 Tue 05/05/26 |
| South Island | 316.20 | 309.60 | 47.00 Tue 05/05/26 |
| New Zealand | 798.70 | 797.70 | 120.30 Tue 05/05/26 |
| Net HVDC Transfer | 6.6 North |
Energy Totals GWh Year to Date
| Generation GWh |
Supply GWh |
Max Daily Energy GWh |
|
|---|---|---|---|
| North Island | 8040.50 | 8701.50 | 78.00 Fri 24/04/26 |
| South Island | 6147.60 | 5453.90 | 47.70 Tue 21/04/26 |
| New Zealand | 14188.10 | 14155.40 | 124.50 Tue 21/04/26 |
| Net HVDC Transfer | 693.7 North |
Peak Half Hour Supply (Average MW)
| Previous Week MW |
Year to Date MW |
|
|---|---|---|
| North Island | 3905.80 Mon 04/05/26 18:00 | 4087.80 Tue 21/04/26 18:00 |
| South Island | 2407.20 Sun 10/05/26 18:30 | 2435.20 Wed 04/03/26 03:30 |
| New Zealand | 6148.00 Mon 04/05/26 18:00 | 6377.50 Tue 21/04/26 18:00 |