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 16:55 05 10 15 20 25 30
GZ1 Northland 487 485 476 482 474 476 473
GZ2 Auckland 796 806 806 809 787 793 790
GZ3 Hamilton 419 416 421 419 422 418 416
GZ4 Edgecumbe 299 297 297 295 295 286 282
GZ5 Hawkes Bay 194 191 190 184 188 187 185
GZ6 Taranaki 143 144 143 143 141 140 139
GZ7 Bunnythorpe 164 161 160 161 158 159 156
GZ8 Wellington 285 284 282 278 276 272 272
GZ9 Nelson 147 144 144 142 140 141 136
GZ10 Christchurch 422 419 418 418 415 410 408
GZ11 Canterbury 225 225 223 224 223 223 222
GZ12 West Coast 53 53 52 53 53 53 53
GZ13 Otago 111 111 108 109 108 106 107
GZ14 Southland 905 907 905 896 897 889 885
Total 4648 4642 4627 4614 4578 4553 4522

 

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.

System Operator