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 00:05 05 10 15 20 25 30
GZ1 Northland 405 413 421 427 434 438 446
GZ2 Auckland 655 718 725 725 743 752 756
GZ3 Hamilton 317 323 328 330 334 336 341
GZ4 Edgecumbe 293 295 292 299 300 303 305
GZ5 Hawkes Bay 142 145 148 150 151 151 152
GZ6 Taranaki 110 111 112 113 114 115 115
GZ7 Bunnythorpe 150 151 154 156 158 159 162
GZ8 Wellington 323 327 336 337 342 349 352
GZ9 Nelson 149 148 151 150 151 152 153
GZ10 Christchurch 412 421 427 433 437 440 442
GZ11 Canterbury 195 199 201 203 206 209 208
GZ12 West Coast 26 26 27 27 28 28 28
GZ13 Otago 130 132 135 135 139 139 141
GZ14 Southland 769 768 777 779 781 785 793
Total 4075 4171 4231 4265 4316 4356 4395

 

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.