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 23 Nov 2025
Energy Totals GWh Previous Week
| Generation GWh |
Supply GWh |
Max Daily Energy GWh |
|
|---|---|---|---|
| North Island | 381.90 | 455.50 | 70.30 Wed 19/11/25 |
| South Island | 407.30 | 330.80 | 56.40 Sun 23/11/25 |
| New Zealand | 789.20 | 786.30 | 116.50 Wed 19/11/25 |
| Net HVDC Transfer | 76.5 North |
Energy Totals GWh Year to Date
| Generation GWh |
Supply GWh |
Max Daily Energy GWh |
|
|---|---|---|---|
| North Island | 22343.70 | 23298.50 | 89.70 Wed 20/08/25 |
| South Island | 15148.30 | 14122.10 | 56.40 Sun 23/11/25 |
| New Zealand | 37492.00 | 37420.60 | 138.40 Wed 20/08/25 |
| Net HVDC Transfer | 1026.2 North |
Peak Half Hour Supply (Average MW)
| Previous Week MW |
Year to Date MW |
|
|---|---|---|
| North Island | 3489.70 Tue 18/11/25 17:30 | 4890.20 Tue 19/08/25 18:00 |
| South Island | 2577.30 Sun 23/11/25 20:00 | 2577.30 Sun 23/11/25 20:00 |
| New Zealand | 5559.00 Tue 18/11/25 17:30 | 7303.00 Fri 25/07/25 08:00 |