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 11:20 05 10 15 20 25 30
GZ1 Northland 508 510 512 511 516 518 520
GZ2 Auckland 788 795 796 804 804 825 826
GZ3 Hamilton 357 355 359 357 359 360 362
GZ4 Edgecumbe 323 329 329 333 332 328 329
GZ5 Hawkes Bay 221 219 220 222 224 221 220
GZ6 Taranaki 120 120 120 121 121 122 122
GZ7 Bunnythorpe 184 187 184 187 188 186 188
GZ8 Wellington 433 435 433 437 433 433 442
GZ9 Nelson 166 162 166 168 166 168 169
GZ10 Christchurch 483 483 484 484 483 484 486
GZ11 Canterbury 221 221 220 220 221 222 221
GZ12 West Coast 25 24 25 24 25 25 26
GZ13 Otago 179 179 181 181 179 179 181
GZ14 Southland 826 828 826 826 823 827 829
Total 4833 4847 4854 4876 4874 4898 4921

 

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.