Treat all power lines as live at all times

North Canterbury lines company MainPower is reminding everyone in storm-affected regions that all power lines should be treated as live at all times.

Acting Chief Executive Damien Whiffen says the company is getting reports of lines down due to trees and wind.

“While we’re getting as many of our guys on the road as quickly as we can, we can only send crews out when it’s safe to do so. We have teams out scoping the faults and making safe, but it may be some time before we are able to repair all downed lines.

“Until we do, members of the public must treat all downed lines as live at all times. Power can be restored at any time – or may be still on even if lines are down. Stay at least 20 metres away from lines at all times and call our 0800 number if you come across them.”

MainPower is experiencing wide ranging outages across the network due to the wind event currently in play. More than 6,200 customers are currently without power, and the lines company is asking people to be prepared to be without power for extended periods.

“We have a large and diverse network in some very rural areas, including Hanmer Springs and around the Culverden basin, which have been particularly hard hit by today’s weather.

“We have boots on the ground across the network and will be making repairs as quickly as possible, but it may be tomorrow until it’s safe to really get stuck in and get large teams and equipment working on things like pole replacements, transformer, insulator and conductor repairs.”

The company has stood up its Emergency Operations Centre and staff are focussed on directing resource to areas that are hardest hit, including Hanmer Springs, Culverden, Oxford and the Hawarden area.

“We’re concentrating on the main trunk lines in the first place to ensure that main supply is capable and safe before further livening takes place,” Wiffen says. “We have as many people out now as we can, and we’re cracking on now that the winds have calmed a wee bit. But again, people should treat all power as live at all times. Your power at home or work may be restored at any time.

“To put this into perspective, we have more than 45,000 customers across the Waimakariri, Hurunui and Kaikōura areas – an area of more than 11,000 square kilometres. We currently have faults affecting 8,841 individual connection points. And we have 73 field staff – and they’re all very busy!”

Whiffen says once the storm weather has moved on and the country has a better idea of the situation, MainPower will be working with other Electricity Distribution Businesses (EDBs) to allocate resources and expedite repairs.

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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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