Hanmer Springs Substation

As part of MainPower’s planning for future capacity, as well as the retirement of end-of-life assets, we are going to install a new substation to meet projected growth in the Hanmer Springs region.

The new substation project will take 4–5 years to complete and will be built at a new location that can support larger assets.

Right now, we are working on initial concept designs for the new asset and in negotiations to procure suitable land for the installation.

Other projects

Thongcaster Road Solar Project

MainPower has the required consents to construct a solar farm on a 10-hectare site at Thongcaster Road. When complete, the…

Outage notifications

Maintenance - Swannanoa Substation

Due to maintenance of Swannanoa Substation streetlights will remain switched on in the greater Swannaona area from Sunday 21/09/25 trough to Saturday morning 11/10/25

Is your outage not listed?

Troubleshoot your outage
Treat all lines as live during the outage period; power may be restored at any time. If you require further information, please call MainPower’s 24-hour faults line. To report an emergency, call 111.

Outage notifications

Maintenance - Swannanoa Substation

Due to maintenance of Swannanoa Substation streetlights will remain switched on in the greater Swannaona area from Sunday 21/09/25 trough to Saturday morning 11/10/25

Is your outage not listed?

Troubleshoot your outage
Treat all lines as live during the outage period; power may be restored at any time. If you require further information, please call MainPower’s 24-hour faults line. To report an emergency, call 111.

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