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 08:20 05 10 15 20 25 30
GZ1 Northland 704 698 699 697 691 694 691
GZ2 Auckland 1091 1095 1084 1087 1084 1070 1061
GZ3 Hamilton 509 511 509 505 504 503 499
GZ4 Edgecumbe 447 441 443 443 439 439 436
GZ5 Hawkes Bay 259 259 258 255 255 254 255
GZ6 Taranaki 155 155 154 154 153 151 151
GZ7 Bunnythorpe 243 246 242 245 240 237 235
GZ8 Wellington 552 546 541 541 532 541 527
GZ9 Nelson 216 219 219 219 220 219 220
GZ10 Christchurch 602 601 597 599 595 595 595
GZ11 Canterbury 261 260 261 262 260 262 261
GZ12 West Coast 32 31 31 30 31 31 31
GZ13 Otago 195 194 193 192 191 189 188
GZ14 Southland 855 857 855 854 847 846 843
Total 6119 6116 6090 6086 6043 6032 5992

 

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.