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 18:00 05 10 15 20 25 30
GZ1 Northland 557 554 552 550 547 543 541
GZ2 Auckland 853 840 853 855 853 850 846
GZ3 Hamilton 464 464 464 461 458 458 455
GZ4 Edgecumbe 333 334 332 330 330 332 326
GZ5 Hawkes Bay 218 217 217 216 214 212 212
GZ6 Taranaki 158 158 158 158 159 158 158
GZ7 Bunnythorpe 184 184 183 183 182 181 179
GZ8 Wellington 321 322 321 320 316 311 315
GZ9 Nelson 158 159 159 157 153 152 150
GZ10 Christchurch 400 400 406 399 395 392 382
GZ11 Canterbury 269 270 269 270 270 268 267
GZ12 West Coast 59 59 59 60 60 60 60
GZ13 Otago 146 147 147 148 147 147 146
GZ14 Southland 837 838 839 840 838 842 838
Total 4958 4947 4956 4945 4923 4908 4877

 

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