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 12:05 05 10 15 20 25 30
GZ1 Northland 574 558 556 561 564 568 574
GZ2 Auckland 968 978 983 991 990 994 994
GZ3 Hamilton 450 447 450 455 456 459 464
GZ4 Edgecumbe 357 355 358 361 357 360 360
GZ5 Hawkes Bay 194 194 191 192 193 193 194
GZ6 Taranaki 168 166 164 164 165 165 165
GZ7 Bunnythorpe 188 186 184 185 186 186 185
GZ8 Wellington 355 355 355 355 355 356 355
GZ9 Nelson 138 139 143 145 145 149 151
GZ10 Christchurch 377 378 389 388 393 398 400
GZ11 Canterbury 208 212 216 215 218 218 220
GZ12 West Coast 44 44 46 46 46 46 46
GZ13 Otago 128 126 127 126 127 129 131
GZ14 Southland 889 890 894 896 891 894 896
Total 5035 5027 5055 5079 5088 5114 5133

 

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.