We are a kaitiaki of electricity

New Zealand's electricity regulator

Decision on 21 December 2025 under-frequency event

An under-frequency event occurred at approximately 5.21pm on 21 December 2025 when Contact Energy Limited’s Tauhara generator tripped, reducing North Island fr…

Authority approves System Operator’s changes to Policy Statement

The Electricity Authority Te Mana Hiko has approved minor changes to the System Operator’s Policy Statement as a result of the latest regular review. These cha…

Why a well-regulated electricity sector matters to New Zealand

Electricity is an essential enabler. It helps make our modern lives possible and our businesses run. It powers the alarm clock that starts our day, the heating…

Our projects

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Code amendment omnibus

Consulting on amendments to the Electricity Industry Participation Code.

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Submissions open until 12 August 2026

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Distribution connection pricing reform

Improving connection pricing methodologies so they’re more efficient with greater consistency across distributors.

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Submissions open until 24 August 2026

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Over-the-counter market

Improving the operation and efficiency of the over-the-counter market.

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Submissions open until 1 September 2026

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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