Regulatory reporting

Regulatory reporting at MainPower

MainPower is required to make several disclosures pursuant to the Electricity Distribution (Information Disclosure) Requirements 2008 and to capture our complaints process.

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Electricity Authority

The Electricity Authority is an independent Crown entity responsible for the efficient operation of the New Zealand electricity market. The Electricity Authority replaced the Electricity Commission on 1 November 2010, as one of several changes made under the Electricity Industry Act 2010.

The objective of the Authority is to promote competition in, reliable supply by, and the efficient operation of, the electricity industry for the long-term benefit of consumers. Click here to learn more about the role of the Electricity Authority.

Commerce Commission

Part 4A of the Commerce Act 1986 establishes a regulatory regime for large electricity lines businesses. The regime requires lines businesses to disclose certain information concerning the business, including financial performance, efficiency performance measures and reliability performance measures.

Electricity and gas complaints

MainPower’s key focus is to provide a safe and reliable system of electricity distribution to customers in the North Canterbury region. Customer feedback is important to us to ensure we meet our customer’s needs and provide an efficient and effective service.

Please contact MainPower if you have an electricity network related problem or are concerned about our company’s service, or if you have issues relating to our access to the MainPower network equipment on your land. If your complaint is about a power account, please contact your electricity retailer.

MainPower has developed a process for resolving issues in a timely and efficient manner. We will acknowledge your complaint within two working days of receiving it and will appoint a staff member to investigate and resolve your issue. We will update you on our investigations into your complaint within seven working days of receiving it, and if it is not resolved in that period, we will explain why and seek to resolve it within 20 working days. This process is free to customers of MainPower.

To make a complaint

You can submit customer feedback via our Get in Touch page. Alternatively, please call 0800 30 90 80, email us at feedback@mainpower.co.nz, or call in and see us between 8:00 am to 4:00 pm Monday to Friday.

If we are unable to resolve your concern to your satisfaction, you can make a complaint under the Energy Complaints Scheme.

The Energy Complaints Scheme is managed by Utilities Disputes Ltd and the contact details are PO Box 5875, Lambton Quay, Wellington 6145, or phone 0800 22 33 40, or email info@udl.co.nz. To learn more visit www.udl.co.nz.

We’re here to help

If you need some assistance or advice, please get in touch with our team.

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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