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 | 1228.908 MW |
| Northpower | 86.269 MW |
| Top Energy | 12.37 MW |
| Vector | 951.899 MW |
| Counties Power | 63 MW |
| NZ Steel | 90 MW |
Updated:
| Top North Island Load Data | |
|---|---|
| GZ 1 Load | 477.009 MW |
| Northpower | 86.269 MW |
| Top Energy | 12.37 MW |
| Vector Northern | 352.8 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 Winter daily peaks.
| Zone 1 Load | Date |
|---|---|
| 2370.504 | 07/08/2026 07:50 |
| 2361.457 | 06/08/2026 07:50 |
| 2298.417 | 29/07/2026 08:00 |
| 2294.111 | 05/08/2026 19:05 |
| 2252.788 | 27/07/2026 18:45 |
| 2225.371 | 28/07/2026 07:50 |
| 2185.94 | 30/07/2026 07:50 |
| 2152.197 | 20/08/2026 07:50 |
| 2148.961 | 03/07/2026 08:10 |
| 2126.266 | 04/08/2026 18:40 |
| GZ1 Load | Date |
|---|---|
| 952.519 | 07/08/2026 07:50 |
| 951.989 | 06/08/2026 07:40 |
| 942.903 | 05/08/2026 18:55 |
| 930.854 | 29/07/2026 07:50 |
| 913.301 | 27/07/2026 18:50 |
| 886.806 | 28/07/2026 18:50 |
| 879.247 | 17/08/2026 18:35 |
| 870.015 | 30/07/2026 07:50 |
| 866.425 | 26/07/2026 18:35 |
| 865.888 | 20/08/2026 07:50 |