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 29 Mar 2026
Energy Totals GWh Previous Week
| Generation GWh |
Supply GWh |
Max Daily Energy GWh |
|
|---|---|---|---|
| North Island | 450.70 | 476.20 | 72.60 Thu 26/03/26 |
| South Island | 330.30 | 303.80 | 45.30 Thu 26/03/26 |
| New Zealand | 781.10 | 779.90 | 117.90 Thu 26/03/26 |
| Net HVDC Transfer | 26.5 North |
Energy Totals GWh Year to Date
| Generation GWh |
Supply GWh |
Max Daily Energy GWh |
|
|---|---|---|---|
| North Island | 5229.90 | 5803.40 | 73.10 Mon 02/02/26 |
| South Island | 4267.20 | 3669.00 | 46.00 Fri 20/03/26 |
| New Zealand | 9497.10 | 9472.40 | 117.90 Thu 26/03/26 |
| Net HVDC Transfer | 598.2 North |
Peak Half Hour Supply (Average MW)
| Previous Week MW |
Year to Date MW |
|
|---|---|---|
| North Island | 3633.30 Thu 26/03/26 17:30 | 3754.20 Mon 02/02/26 17:30 |
| South Island | 2180.10 Tue 24/03/26 09:30 | 2435.20 Wed 04/03/26 03:30 |
| New Zealand | 5661.90 Thu 26/03/26 17:30 | 5736.10 Tue 03/03/26 08:00 |