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 03:35 05 10 15 20 25 30
GZ1 Northland 333 334 333 333 334 335 336
GZ2 Auckland 588 582 573 593 575 572 577
GZ3 Hamilton 297 298 297 298 299 298 299
GZ4 Edgecumbe 239 239 239 237 240 238 240
GZ5 Hawkes Bay 126 128 127 126 127 127 127
GZ6 Taranaki 190 190 189 187 189 187 193
GZ7 Bunnythorpe 105 106 103 104 102 104 105
GZ8 Wellington 220 220 220 218 219 220 219
GZ9 Nelson 93 93 93 94 94 94 93
GZ10 Christchurch 245 245 245 245 245 246 246
GZ11 Canterbury 139 139 138 139 138 141 145
GZ12 West Coast 32 32 32 33 33 33 34
GZ13 Otago 90 89 90 91 91 90 90
GZ14 Southland 791 792 790 790 792 792 793
Total 3488 3488 3471 3488 3477 3475 3497

 

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