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 20:25 05 10 15 20 25 30
GZ1 Northland 641 643 651 646 651 653 655
GZ2 Auckland 993 1003 1000 1006 1000 1013 1024
GZ3 Hamilton 460 460 461 464 467 470 474
GZ4 Edgecumbe 353 361 358 356 359 364 368
GZ5 Hawkes Bay 205 205 206 205 209 206 212
GZ6 Taranaki 162 163 163 165 164 166 165
GZ7 Bunnythorpe 202 208 213 212 212 219 224
GZ8 Wellington 386 391 388 392 391 394 396
GZ9 Nelson 160 163 164 167 168 164 165
GZ10 Christchurch 423 429 429 430 430 433 434
GZ11 Canterbury 256 257 256 260 262 264 265
GZ12 West Coast 49 49 49 49 49 50 50
GZ13 Otago 156 157 157 158 156 158 158
GZ14 Southland 901 904 908 908 910 910 912
Total 5348 5394 5403 5416 5428 5465 5501

 

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.