News
First mandatory trading session for standardised super-peak contracts
The first mandatory trading session for standardised super-peak contracts takes place on 11 August. The session, to be conducted on the new over-the-counter tr…
Proposed updates to OTC bids and offers data notice
We are seeking feedback on a proposal to amend the over-the-counter bids and offers data notice. The proposal is informed by analysis of data received under th…
Seeking feedback on 23 October 2025 under-frequency event
The Electricity Authority Te Mana Hiko is seeking feedback from electricity market participants who may have been substantially affected by an under-frequency …
Amendments to hedge disclosure obligations take effect on 1 August 2026
Amendments to the hedge disclosure obligations in subpart 5 of Part 13 of the Electricity Industry Participation Code take effect on 1 August 2026.
New operators approved for Type B co-generating stations
The Electricity Authority Te Mana Hiko has approved applications from New Zealand Steel Limited and Whareroa Cogeneration Limited to operate plants at Glenbroo…
Managing frequency in a changing power system
We have been working with the System Operator to investigate how system frequency performance is being maintained as more intermittent generation connects to N…
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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 that warms our homes in winter, the ovens that cook our meals and the devices that connect us with family, friends and work.
Watch our Quarterly Update, 22 July 2026
We had a great turnout at our latest online quarterly update on Wednesday 22 July. Thanks to all those who tuned in.
FAQs for half hourly reconciliation
Following the release of our Requiring the use of half-hourly data for reconciliation - Decision paper on 27 March, participants and interested parties have ra…
Latest Code changes improve clarity and support our evolving electricity system
The Electricity Authority Te Mana Hiko has decided to implement 13 of the 14 proposals included in its latest Electricity Industry Participation Code review pr…
Statement of performance expectations 2026/27 published
The Electricity Authority Te Mana Hiko has published its Statement of performance expectations 2026/27, which explains how we will deliver on our statutory obj…
Breaking the link between gas supply and power prices and what it means for New Zealand’s energy future
For years, New Zealand enjoyed relatively stable wholesale electricity prices. While there were occasional spikes during dry years, the overall cost of generat…
Retailers asked to complete readiness survey on October Code amendments
The Electricity Authority is seeking information about electricity retailers’ readiness for amendments to the Electricity Industry Participation Code 2010 that…
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Energy Competition Task Force powers ahead with fresh agenda
The Energy Competition Task Force has announced it will continue its work in 2026 with a refreshed set of priorities and a greater focus on inter-agency collaboration to address competition issues in the electricity market.
Electricity Authority review finds growing awareness of services that help consumers
The Electricity Authority Te Mana Hiko has published a post-implementation review of measures introduced in 2021 to increase awareness of Utilities Disputes, and electricity price comparison and switching services.
Consultation opens for Code amendment omnibus #7
The Electricity Authority is seeking feedback on an omnibus consultation paper proposing a range of discrete changes to the Electricity Industry Participation …
New Chair for Electricity Authority announced
John Harbord has been named as new Chair of the Electricity Authority. Harbord has been appointed for a three-year term which commences on 15 July. Harbord has…
Marginal generators and prices in the electricity market
In the New Zealand wholesale electricity market, the price paid to dispatched generators is the nodal ‘spot price’, which is priced to reflect the ‘marginal’ g…