Login
Login
0800 30 90 80
Outages
Get in touch

Corporate publications and disclosures

On this page

Publications and disclosures

MainPower operates under several regulations, overseen by government bodies like the Electricity Authority, the Commerce Commission, and the Ministry of Business, Innovation and Employment.

These regulations ensure we maintain service quality, manage pricing responsibly, and stay transparent by sharing regular updates on our financial and operational performance. We also outline our long-term plans to keep the electricity network running smoothly across our region.

MainPower disclosures

Annual reports
Asset disclosures

MainPower’s Asset Management Plan documents our asset management risks, objectives, processes, and plans with specific focus on service targets, and the development, maintenance, and replacement plans for our assets. The plan provides customers and stakeholders with insight and explanation on how we intend to provide electricity distribution services to our consumers over the next ten years. It complies with the requirements of clause 2.6.1 of the Electricity Distribution Information Disclosure Determination 2012.

Capital contributions
Electricity distribution information disclosure
Lines charges
Loss code
Description Loss Code Loss Factor Consumption Loss Factor Generation
MainPower Average
M01
1.0695
1.0000
MainPower 11kV Actual (McAlpines 11kV)
M11
1.0300
1.0300
Pricing disclosures
Security of supply

Disclosure in accordance with the Electricity Industry Participation Code 2010.

Under the above noted regulations, electricity distributors are required to prepare a Participant Outage Plan (POP) which specifies the actions that would be taken to reduce the consumption of electricity in the unlikely event a supply shortage is declared by the Electricity Commission.

The Participant Outage Plan must:

  • comply with the Electricity Industry (Enforcement) Regulations 2010, the Electricity Industry Participation Code 2010, and subsequent amendments; and
  • comply with the requirements of the System Operator Rolling Outage Plan (SOROP); and
  • supplement the System Operator Rolling Outage Plan (SOROP).
Statement of Corporate Intent
Use-of-System Agreement

We’re here to help

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

Get in touch
2

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

Outages
0800 30 90 80

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

Outages
0800 30 90 80

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.

Login
Login
0800 30 90 80
Outages
Get in touch

Quick links