Weather events impacting network

Significant winds yesterday and fires in the Kaikōura region have impacted the MainPower network, with crews currently out fixing faults and restoring power. 

Acting Chief Executive Damien Whiffen says the company has stood up its Emergency Operations Centre (EOC) to ensure resources and supplies are directed to the areas that need them most. 

“We’re keenly aware that some of our customers were without power last night, and looking at the forecast for Thursday which includes significant wind across the network, we are encouraging our customers to enact their No Power Plans and prepare to be without power for some days if the weather delivers as promised. 

“Our crews are currently out scoping and fixing faults, but the fires in Kaikōura and the remote nature of much of our network means this will take time. We are stocking up and preparing for a significant event tomorrow.” 

MainPower has over 46,000 customers on the network in the Waimakariri, Hurunui and Kaikōura regions. In 2023 a similar weather pattern meant around half the network was without power for extended periods, so the company is preparing for the worst. 

“Of course we hope we’re overcooking this and it won’t be as bad as the forecasts would have us believe, but we’re making sure we have everything we need on hand – from poles to people – to get to those repairs as soon as it’s safe to do so,” Whiffen says. 

“We’re particularly mindful of our customers and crews in Kaikōura, many of whom are volunteer firefighters and are working around the clock to keep their community safe.” 

There are currently around 600 customers without power in the Kaikōura, Lees Valley, Waikari, Culverden and Waiau areas. The company hopes to restore power to as many of these areas today before the wind picks up again tomorrow. 

Some pictures of current damage below. If you see damage to electricity equipment, please TREAT AS LIVE  keep your distance and call MainPower immediately on 0800 30 90 80 to report it.

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Important notifications

Hot water load testing under way ahead of winter

Until mid‑April, we’re working closely with retailers to carry out hot water load testing as we prepare our network for the coming winter season.

These tests run for a couple of hours each day, Monday to Friday, with no testing taking place over weekends. Because each test window is relatively short, customers are unlikely to notice any changes to their hot water supply.

The purpose of this work is to help us better understand how much controllable load is available during the summer months. Gaining accurate insights now means we can model customer savings more effectively by reducing system load at peak times. It also helps us assess whether this load flexibility could assist Transpower in deferring an upcoming local transmission upgrade.

This testing is an important part of ensuring a resilient, efficient network that supports our community.

MainPower Trust elections

Voting is open for the 2026 MainPower Trust election.

Voting packs have been emailed or posted by Electionz.com to everyone who pays a power bill on the MainPower network. You need to have the unique ID provided to cast your vote.

If you haven’t received a voting pack, or can’t find it, you can get a replacement by contacting iro@electionz.com.  For full details of the candidates, visit mainpowertrust.co.nz/trustee-elections/

Make the most of this opportunity to have your say on the future of MainPower – and your community.

Voting closes midday Friday 6 March 2026. 

Privacy Policy

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

Hot water load testing under way ahead of winter

Until mid‑April, we’re working closely with retailers to carry out hot water load testing as we prepare our network for the coming winter season.

These tests run for a couple of hours each day, Monday to Friday, with no testing taking place over weekends. Because each test window is relatively short, customers are unlikely to notice any changes to their hot water supply.

The purpose of this work is to help us better understand how much controllable load is available during the summer months. Gaining accurate insights now means we can model customer savings more effectively by reducing system load at peak times. It also helps us assess whether this load flexibility could assist Transpower in deferring an upcoming local transmission upgrade.

This testing is an important part of ensuring a resilient, efficient network that supports our community.

MainPower Trust elections

Voting is open for the 2026 MainPower Trust election.

Voting packs have been emailed or posted by Electionz.com to everyone who pays a power bill on the MainPower network. You need to have the unique ID provided to cast your vote.

If you haven’t received a voting pack, or can’t find it, you can get a replacement by contacting iro@electionz.com.  For full details of the candidates, visit mainpowertrust.co.nz/trustee-elections/

Make the most of this opportunity to have your say on the future of MainPower – and your community.

Voting closes midday Friday 6 March 2026. 

Privacy Policy

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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