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 14:30 05 10 15 20 25 30
GZ1 Northland 498 494 501 497 500 499 504
GZ2 Auckland 863 872 885 862 861 880 869
GZ3 Hamilton 432 430 430 432 433 432 434
GZ4 Edgecumbe 325 335 327 330 331 333 327
GZ5 Hawkes Bay 188 192 191 190 194 193 195
GZ6 Taranaki 145 145 145 145 145 146 145
GZ7 Bunnythorpe 182 183 182 183 183 181 182
GZ8 Wellington 408 406 407 408 412 412 413
GZ9 Nelson 164 165 162 163 161 163 162
GZ10 Christchurch 346 345 344 347 348 346 345
GZ11 Canterbury 208 204 208 212 212 211 210
GZ12 West Coast 47 49 49 48 48 48 47
GZ13 Otago 144 142 142 143 144 147 145
GZ14 Southland 861 854 855 858 859 859 861
Total 4809 4818 4832 4818 4830 4848 4841

 

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.