New Zealand’s electricity market regulator

Working for an electricity system that benefits all New Zealanders

MDAG recommendations update: supporting flexibility access and investment

This is the Authority’s latest update on how we are implementing the recommendations in the Market Development Advisory Group’s (MDAG) final report. It covers …

OTC bids and offers market summary April-June 2026

We have published the second edition of our new quarterly bids and offers summaries for the over-the-counter hedge market.

Feedback sought on review of security of supply standards

The Electricity Authority Te Mana Hiko is reviewing New Zealand's security of supply standards to ensure they continue to reflect an efficient level of investm…

Our projects

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Managing peak electricity demand

How to better manage risks to electricity supply during peak demand periods.

Have your say

Submissions open until 22 October 2026

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Code amendment omnibus

Consulting on amendments to the Electricity Industry Participation Code.

Code review programme

Code review programmes address various themes or issues that arise in the Code.

Wires

Industry

Setting and enforcing the Code

We set the Electricity Industry Participation Code 2010 - the rules that govern nearly every aspect of New Zealand's electricity industry.

It's each industry participant’s responsibility to comply with industry regulations and the Code, but we're here to support and advise.

We monitor and enforce the rules so that participants operate on a level playing field and consumers are treated fairly.

About the Code