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 20:40 05 10 15 20 25 30
GZ1 Northland 542 544 543 546 548 545 546
GZ2 Auckland 816 833 828 825 821 818 822
GZ3 Hamilton 414 416 420 423 423 424 425
GZ4 Edgecumbe 316 319 321 321 322 325 325
GZ5 Hawkes Bay 176 176 176 180 180 179 181
GZ6 Taranaki 161 161 164 162 163 162 163
GZ7 Bunnythorpe 174 173 176 178 178 179 180
GZ8 Wellington 361 362 362 363 363 361 361
GZ9 Nelson 143 142 144 145 148 147 149
GZ10 Christchurch 381 381 381 380 379 378 377
GZ11 Canterbury 299 300 299 300 299 299 298
GZ12 West Coast 56 56 57 57 56 57 56
GZ13 Otago 156 155 156 156 155 155 154
GZ14 Southland 881 878 881 881 877 880 876
Total 4879 4893 4908 4919 4911 4909 4913

 

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.