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 13:45 05 10 15 20 25 30
GZ1 Northland 502 501 506 504 505 508 507
GZ2 Auckland 827 835 849 836 843 843 832
GZ3 Hamilton 380 383 383 385 385 389 394
GZ4 Edgecumbe 328 326 327 329 330 324 330
GZ5 Hawkes Bay 167 168 168 167 168 169 170
GZ6 Taranaki 122 123 123 124 123 123 123
GZ7 Bunnythorpe 174 174 176 174 175 175 175
GZ8 Wellington 337 339 340 340 343 343 347
GZ9 Nelson 118 118 120 121 123 123 121
GZ10 Christchurch 287 286 288 291 290 294 297
GZ11 Canterbury 189 191 189 191 192 192 192
GZ12 West Coast 23 23 23 23 23 23 24
GZ13 Otago 129 132 130 132 133 134 135
GZ14 Southland 833 837 839 838 841 846 843
Total 4416 4437 4461 4450 4473 4488 4485

 

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