Upper North Island loads

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 1469.261 MW
Northpower 85.753 MW
Top Energy 22.72 MW
Vector 1145.099 MW
Counties Power 84.8 MW
NZ Steel 105.7 MW
Updated:
Top North Island Load Data
GZ 1 Load 516.173 MW
Northpower 85.753 MW
Top Energy 22.72 MW
Vector Northern 383.2 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
1678.498 30/04/2025 18:30
1673.658 28/04/2025 18:20
1628.828 29/04/2025 17:55
1619.498 14/04/2025 18:35
1610.475 18/02/2025 15:55
1608.628 09/04/2025 18:40
1603.918 11/02/2025 16:55
1600.348 07/04/2025 18:35
1597.449 17/02/2025 14:30
1594.788 16/04/2025 18:25
GZ1 Load Date
658.5 30/04/2025 18:30
652.5 28/04/2025 18:30
652.36 29/04/2025 18:05
623.02 27/04/2025 18:25
622.87 08/04/2025 18:30
622.12 16/04/2025 18:35
618.58 15/04/2025 18:20
618.05 14/04/2025 18:30
616.8 07/04/2025 18:45
616.73 09/04/2025 18:40