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 16:15 05 10 15 20 25 30
GZ1 Northland 620 601 606 597 591 586 586
GZ2 Auckland 1030 1026 1024 1050 1032 1039 1034
GZ3 Hamilton 507 504 501 497 495 490 489
GZ4 Edgecumbe 429 429 425 423 421 423 420
GZ5 Hawkes Bay 262 263 257 257 256 254 257
GZ6 Taranaki 160 159 158 158 156 155 155
GZ7 Bunnythorpe 273 270 269 271 271 270 266
GZ8 Wellington 531 523 520 516 510 512 506
GZ9 Nelson 182 180 178 177 177 175 177
GZ10 Christchurch 487 482 480 477 475 476 474
GZ11 Canterbury 241 240 237 237 236 235 236
GZ12 West Coast 26 26 26 26 27 26 26
GZ13 Otago 149 149 148 149 148 147 146
GZ14 Southland 802 799 796 794 796 797 788
Total 5696 5650 5626 5626 5593 5585 5561

 

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.