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 02 Aug 2026
Energy Totals GWh Previous Week
| Generation GWh |
Supply GWh |
Max Daily Energy GWh |
|
|---|---|---|---|
| North Island | 485.60 | 591.60 | 92.90 Mon 27/07/26 |
| South Island | 459.30 | 347.90 | 65.20 Sun 02/08/26 |
| New Zealand | 944.90 | 939.50 | 142.40 Mon 27/07/26 |
| Net HVDC Transfer | 111.4 North |
Energy Totals GWh Year to Date
| Generation GWh |
Supply GWh |
Max Daily Energy GWh |
|
|---|---|---|---|
| North Island | 13752.00 | 15282.10 | 92.90 Mon 27/07/26 |
| South Island | 10894.30 | 9293.20 | 65.20 Sun 02/08/26 |
| New Zealand | 24646.40 | 24575.20 | 142.40 Mon 27/07/26 |
| Net HVDC Transfer | 1601.1 North |
Peak Half Hour Supply (Average MW)
| Previous Week MW |
Year to Date MW |
|
|---|---|---|
| North Island | 5103.60 Wed 29/07/26 07:30 | 5103.60 Wed 29/07/26 07:30 |
| South Island | 3242.80 Sun 02/08/26 18:00 | 3242.80 Sun 02/08/26 18:00 |
| New Zealand | 7439.20 Wed 29/07/26 07:30 | 7439.20 Wed 29/07/26 07:30 |