Power system loads in the North Island north of Huntly (Zone 1) are displayed on this page to give power companies loading information across the zone.
This information is updated every five minutes. Due to the location of recording equipment at some sites, the load split between retailers for these zones is indicative only.
The historical Zone Load Peaks are winter and summer seasonal values and are reset at the change of seasons on 20 October and 10 May.
Updated:
| Upper North Island Load Data | |
|---|---|
| Zone 1 Load | 1213.625 MW |
| Northpower | 82.483 MW |
| Top Energy | 16.292 MW |
| Vector | 929.199 MW |
| Counties Power | 56.9 MW |
| NZ Steel | 108.1 MW |
Updated:
| Top North Island Load Data | |
|---|---|
| GZ 1 Load | 469.226 MW |
| Northpower | 82.483 MW |
| Top Energy | 16.292 MW |
| Vector Northern | 349 MW |
Latest Zone Load Graphs
Zone 1 Load (Upper North Island)
Updated:
GZ 1 Load (Northland)
Updated:
Historical Zone Load Peaks
Top 10 now reflects Summer daily peaks.
| Zone 1 Load | Date |
|---|---|
| 1619.4 | 29/10/2025 08:00 |
| 1612.238 | 23/10/2025 11:05 |
| 1602.482 | 15/01/2026 13:25 |
| 1599.244 | 18/11/2025 17:45 |
| 1598.622 | 10/12/2025 17:45 |
| 1596.469 | 27/11/2025 16:50 |
| 1589.926 | 09/12/2025 18:00 |
| 1588.32 | 28/10/2025 20:25 |
| 1586.909 | 08/12/2025 18:00 |
| 1580.713 | 28/11/2025 11:55 |
| GZ1 Load | Date |
|---|---|
| 630.09 | 28/10/2025 20:20 |
| 626.7 | 29/10/2025 08:00 |
| 625.103 | 08/12/2025 18:45 |
| 620.125 | 12/11/2025 18:35 |
| 620.012 | 18/11/2025 17:50 |
| 617.166 | 10/12/2025 18:05 |
| 612.1 | 30/10/2025 08:15 |
| 609.794 | 27/11/2025 17:55 |
| 609.128 | 09/12/2025 18:00 |
| 602.966 | 11/12/2025 18:15 |