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 06:10 05 10 15 20 25 30
GZ1 Northland 434 432 409 413 399 394 388
GZ2 Auckland 687 675 659 648 650 643 627
GZ3 Hamilton 429 416 409 401 403 398 391
GZ4 Edgecumbe 300 296 293 290 278 275 272
GZ5 Hawkes Bay 167 166 162 159 158 157 156
GZ6 Taranaki 225 221 219 217 213 214 211
GZ7 Bunnythorpe 163 164 157 151 147 145 143
GZ8 Wellington 280 271 263 256 254 247 245
GZ9 Nelson 131 128 126 124 122 122 121
GZ10 Christchurch 365 353 343 338 331 329 324
GZ11 Canterbury 289 287 281 280 276 276 273
GZ12 West Coast 53 53 52 53 52 51 50
GZ13 Otago 134 133 130 131 129 128 127
GZ14 Southland 860 855 846 841 841 840 838
Total 4514 4448 4348 4302 4256 4216 4163

 

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