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 12 Jul 2026
Energy Totals GWh Previous Week
| Generation GWh |
Supply GWh |
Max Daily Energy GWh |
|
|---|---|---|---|
| North Island | 495.00 | 557.30 | 86.70 Thu 09/07/26 |
| South Island | 411.80 | 346.90 | 59.80 Sun 12/07/26 |
| New Zealand | 906.80 | 904.20 | 134.80 Thu 09/07/26 |
| Net HVDC Transfer | 64.9 North |
Energy Totals GWh Year to Date
| Generation GWh |
Supply GWh |
Max Daily Energy GWh |
|
|---|---|---|---|
| North Island | 12336.60 | 13533.20 | 87.40 Thu 02/07/26 |
| South Island | 9567.60 | 8316.00 | 59.80 Sun 12/07/26 |
| New Zealand | 21904.10 | 21849.20 | 135.90 Wed 01/07/26 |
| Net HVDC Transfer | 1251.6 North |
Peak Half Hour Supply (Average MW)
| Previous Week MW |
Year to Date MW |
|
|---|---|---|
| North Island | 4602.60 Thu 09/07/26 18:00 | 4769.00 Fri 03/07/26 08:00 |
| South Island | 3180.30 Sun 12/07/26 19:00 | 3180.30 Sun 12/07/26 19:00 |
| New Zealand | 6920.00 Thu 09/07/26 18:00 | 7103.80 Fri 03/07/26 08:00 |