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 1212.8 MW
Zone 3 Load 884.7 MW
Zone 3 Margin 328.1 MW
Zone 3 AUVLS enabled No
Electricity Ashburton 143.6 MW
Marlborough Lines 51 MW
Buller Electricity 5.8 MW
Network Tasman 91.3 MW
Alpine Energy Ltd 94.2 MW
Mainpower 84.9 MW
Orion 410.134 MW
Westpower 16.1 MW
Updated:
Top South Island Load Data
GZ 9 Real Time VSAT Limit 339.6 MW
GZ 9 Load 170.7 MW
GZ 9 Margin 168.9 MW
GZ 9 AUVLS enabled No
Marlborough Lines 51 MW
Buller Electricity 5.8 MW
Network Tasman 91.3 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 Summer daily peaks.
Zone 3 Load Date
995.82 07/02/2024 17:50
992.31 20/02/2024 08:10
991.56 22/02/2024 07:55
985.23 24/11/2023 08:20
1042.29 11/01/2024 18:40
1026.25 19/01/2024 15:30
1025.1 08/02/2024 11:50
1021.51 22/01/2024 17:55
1012.28 21/02/2024 08:05
1007.4 19/02/2024 17:55
GZ9 Load Date
203.1 08/02/2024 10:25
198.75 20/02/2024 08:15
198.02 21/02/2024 08:10
196.52 22/02/2024 08:15
196.1 22/01/2024 18:15
195.6 14/02/2024 08:00
195.3 13/02/2024 08:10
194.5 07/02/2024 09:05
194.4 19/02/2024 08:05
194.3 09/02/2024 08:15