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 14:55 05 10 15 20 25 30
GZ1 Northland 518 515 516 515 512 512 516
GZ2 Auckland 824 825 819 821 824 827 826
GZ3 Hamilton 392 391 385 385 382 382 382
GZ4 Edgecumbe 331 331 328 329 328 333 333
GZ5 Hawkes Bay 190 191 189 192 187 186 184
GZ6 Taranaki 128 128 128 128 127 127 127
GZ7 Bunnythorpe 167 168 167 167 167 166 168
GZ8 Wellington 353 357 352 358 358 355 356
GZ9 Nelson 138 136 137 137 137 136 136
GZ10 Christchurch 330 331 331 331 332 333 334
GZ11 Canterbury 169 168 169 168 170 170 169
GZ12 West Coast 23 23 23 23 23 23 23
GZ13 Otago 140 140 140 141 141 141 140
GZ14 Southland 813 815 813 814 816 815 815
Total 4516 4519 4500 4508 4504 4506 4512

 

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.