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 11:30 05 10 15 20 25 30
GZ1 Northland 531 531 527 529 530 527 527
GZ2 Auckland 842 851 843 842 842 843 817
GZ3 Hamilton 416 413 416 416 416 417 418
GZ4 Edgecumbe 335 334 337 336 337 337 338
GZ5 Hawkes Bay 194 194 194 194 194 194 194
GZ6 Taranaki 149 149 150 150 150 149 149
GZ7 Bunnythorpe 167 165 164 164 166 166 166
GZ8 Wellington 329 330 330 328 329 328 326
GZ9 Nelson 172 171 172 173 172 173 173
GZ10 Christchurch 344 344 344 345 344 342 340
GZ11 Canterbury 189 191 192 191 192 190 190
GZ12 West Coast 40 41 42 42 42 41 42
GZ13 Otago 122 123 124 123 124 125 124
GZ14 Southland 867 864 867 868 870 864 860
Total 4700 4706 4700 4701 4709 4696 4662

 

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