Load by operational zone

The New Zealand power system is split into 14 operational zones. The graphic on this page displays loads in each operational zone, as taken from the System Operator's SCADA system. Combined, these values represent total power demand across the country.

SCADA is the System Operator's primary tool for controlling the transmission network and is the source of critical information for the electricity market system as well as for local lines companies. 

Updated:
Current Zone Load
as at minutes ago
Location 10:20 05 10 15 20 25 30
GZ1 Northland 585 587 585 580 583 580 582
GZ2 Auckland 872 870 879 881 898 901 898
GZ3 Hamilton 402 402 404 406 407 406 407
GZ4 Edgecumbe 352 353 353 353 349 355 356
GZ5 Hawkes Bay 213 213 215 214 215 216 215
GZ6 Taranaki 129 129 129 129 130 133 134
GZ7 Bunnythorpe 180 181 183 184 183 182 184
GZ8 Wellington 411 413 415 419 418 418 416
GZ9 Nelson 153 155 155 153 154 154 153
GZ10 Christchurch 390 393 397 398 403 406 406
GZ11 Canterbury 181 183 183 186 185 186 187
GZ12 West Coast 26 26 26 26 26 26 26
GZ13 Otago 161 162 163 164 162 162 161
GZ14 Southland 797 798 798 798 800 799 802
Total 4851 4864 4885 4891 4912 4924 4927

 

Availability and use of data

We publish this and other live data on our website on a best-effort basis. We monitor the live data to ensure it is updating between 8am and 5pm on business days. If it is not updating outside of these times, we will be unlikely to resolve it until we open for business the next morning.

This is indicative information only and we take no responsibility for actions taken by any party based on this information.