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 06 Sep 2026
Energy Totals GWh Previous Week
| Generation GWh |
Supply GWh |
Max Daily Energy GWh |
|
|---|---|---|---|
| North Island | 439.10 | 520.10 | 80.40 Tue 01/09/26 |
| South Island | 403.20 | 318.70 | 50.60 Sun 06/09/26 |
| New Zealand | 842.30 | 838.70 | 128.20 Tue 01/09/26 |
| Net HVDC Transfer | 84.6 North |
Energy Totals GWh Year to Date
| Generation GWh |
Supply GWh |
Max Daily Energy GWh |
|
|---|---|---|---|
| North Island | 16077.70 | 18141.80 | 97.20 Thu 06/08/26 |
| South Island | 13044.10 | 10884.00 | 52.90 Fri 07/08/26 |
| New Zealand | 29121.90 | 29025.80 | 149.40 Fri 07/08/26 |
| Net HVDC Transfer | 2160.1 North |
Peak Half Hour Supply (Average MW)
| Previous Week MW |
Year to Date MW |
|
|---|---|---|
| North Island | 4297.80 Tue 01/09/26 18:30 | 5211.10 Fri 07/08/26 07:30 |
| South Island | 2709.60 Sun 06/09/26 18:00 | 2709.60 Sun 06/09/26 18:00 |
| New Zealand | 6605.60 Mon 31/08/26 18:30 | 7743.20 Thu 06/08/26 07:30 |