Upper South Island loads

Power system loads in the South Island north of Waitaki Valley (Zone 3) 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 South Island Load Data
Zone 3 Real Time VSAT Limit 1100.2 MW
Zone 3 Load 838.21 MW
Zone 3 Margin 261.99 MW
Zone 3 AUVLS enabled No
Electricity Ashburton 43.3 MW
Marlborough Lines 45.2 MW
Buller Electricity 5.7 MW
Network Tasman 99 MW
Alpine Energy Ltd 76.7 MW
Mainpower 75 MW
Orion 480.801 MW
Westpower 19.11 MW
Updated:
Top South Island Load Data
GZ 9 Real Time VSAT Limit 266.4 MW
GZ 9 Load 160.9 MW
GZ 9 Margin 105.5 MW
GZ 9 AUVLS enabled No
Marlborough Lines 45.2 MW
Buller Electricity 5.7 MW
Network Tasman 99 MW

Latest Zone Load Graphs

Zone 3 Load (Upper South Island)

Updated:

GZ 9 Load (Nelson)

Updated:

Historical Zone Load Peaks

Top 10 now reflects Winter daily peaks.
Zone 3 Load Date
998.24 11/05/2024 17:55
979.83 12/05/2024 09:05
1115.86 10/05/2024 10:00
1111.71 14/05/2024 07:50
1091.59 13/05/2024 07:50
1088.52 17/05/2024 08:05
1078.83 16/05/2024 07:40
1073.41 15/05/2024 09:30
GZ9 Load Date
244.73 10/05/2024 10:00
240.62 13/05/2024 17:50
235.63 14/05/2024 17:55
226.2 15/05/2024 09:25
217 11/05/2024 08:30
216.5 17/05/2024 09:25
212.3 12/05/2024 17:55
209.5 16/05/2024 18:15