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 1723.029 MW
Northpower 115.4 MW
Top Energy 31.35 MW
Vector 1370.699 MW
Counties Power 96 MW
NZ Steel 86.4 MW
Updated:
Top North Island Load Data
GZ 1 Load 711.73 MW
Northpower 115.4 MW
Top Energy 31.35 MW
Vector Northern 540.9 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
2096.937 18/06/2025 07:55
2038.97 19/06/2025 08:10
2030.788 17/06/2025 18:35
2018.505 16/06/2025 18:00
1987.324 10/06/2025 17:55
1959.758 06/06/2025 18:10
1900.528 22/05/2025 07:55
1891.575 09/06/2025 18:00
1887.128 03/06/2025 18:00
1879.419 22/06/2025 18:20
GZ1 Load Date
836.051 18/06/2025 07:50
828.17 16/06/2025 18:20
820.43 17/06/2025 18:45
815.082 19/06/2025 08:15
805.75 10/06/2025 18:00
784.86 06/06/2025 18:10
783.96 08/06/2025 18:20
783.26 22/06/2025 18:20
771.23 15/06/2025 17:55
766.12 03/06/2025 18:45