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 23:45 05 10 15 20 25 30
GZ1 Northland 392 399 403 407 412 417 421
GZ2 Auckland 654 653 655 669 666 671 687
GZ3 Hamilton 340 340 342 345 347 353 353
GZ4 Edgecumbe 250 253 258 261 264 264 260
GZ5 Hawkes Bay 158 158 162 158 166 166 165
GZ6 Taranaki 138 139 139 139 140 140 142
GZ7 Bunnythorpe 143 146 151 154 148 148 151
GZ8 Wellington 250 254 257 258 263 267 270
GZ9 Nelson 122 121 122 124 126 127 128
GZ10 Christchurch 333 334 336 330 337 338 338
GZ11 Canterbury 216 220 221 220 224 220 220
GZ12 West Coast 45 45 45 46 47 47 47
GZ13 Otago 142 144 146 146 148 146 146
GZ14 Southland 833 832 833 838 840 837 841
Total 4012 4040 4068 4094 4128 4143 4168

 

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