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 21:30 05 10 15 20 25 30
GZ1 Northland 476 478 482 484 488 488 482
GZ2 Auckland 761 755 758 768 762 763 764
GZ3 Hamilton 375 378 379 380 383 385 385
GZ4 Edgecumbe 312 316 323 321 321 328 322
GZ5 Hawkes Bay 186 188 187 191 190 189 190
GZ6 Taranaki 136 137 137 137 139 139 139
GZ7 Bunnythorpe 146 146 149 150 148 149 150
GZ8 Wellington 292 295 298 300 301 300 296
GZ9 Nelson 142 144 146 148 147 147 147
GZ10 Christchurch 325 325 327 328 329 330 326
GZ11 Canterbury 179 180 181 183 184 184 183
GZ12 West Coast 40 40 40 40 40 41 41
GZ13 Otago 128 129 129 130 129 130 129
GZ14 Southland 848 850 853 854 857 856 857
Total 4345 4358 4390 4411 4414 4427 4410

 

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