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 17:50 05 10 15 20 25 30
GZ1 Northland 551 553 553 547 548 551 543
GZ2 Auckland 931 921 922 917 923 921 924
GZ3 Hamilton 471 471 466 467 467 467 467
GZ4 Edgecumbe 315 317 309 312 312 314 316
GZ5 Hawkes Bay 177 177 177 178 177 179 177
GZ6 Taranaki 166 167 167 166 166 168 167
GZ7 Bunnythorpe 216 218 218 217 218 218 216
GZ8 Wellington 351 349 355 349 351 351 346
GZ9 Nelson 182 180 178 176 176 177 176
GZ10 Christchurch 414 413 412 410 406 405 404
GZ11 Canterbury 282 281 281 282 281 282 282
GZ12 West Coast 54 55 55 56 55 55 55
GZ13 Otago 184 184 184 181 183 183 182
GZ14 Southland 843 841 841 840 844 844 846
Total 5137 5124 5117 5098 5107 5112 5100

 

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.