News
General reminder: Stress test scenarios due soon
The stress test notice issued in May 2025 remains current and will apply for the quarter from October to December 2025. There is no change from the previous qu…
Consumer Care Obligations compliance reports due by 30 September 2025
The Electricity Authority Te Mana Hiko is reminding electricity retailers that they are required to submit compliance reports for 2024/25 under the Consumer Ca…
From simulation to action: Industry Exercise 2025 recommendations
In April 2025, the Electricity Authority and System Operator ran a simulated Industry Exercise with electricity market participants. The exercise tested indust…
Summary of submissions: Decentralisation green paper – meeting the future needs of New Zealanders
The Electricity Authority Te Mana Hiko has published a summary of the 63 submissions received on its decentralisation green paper, Working together to ensure o…
Determination of the 2025 Electricity Allocation Factor
The Electricity Authority Te Mana Hiko has published its Determination of the 2025 Electricity Allocation Factor. This report documents our calculation of the …
Consultation opens on permanent Code change to strengthen the System Operator’s info powers
The Electricity Authority is seeking feedback on a proposal to make permanent the urgent Code amendment that strengthens the System Operator’s ability to manag…
Electricity Authority determines Edendale is a non-conforming grid exit point
The Electricity Authority has reclassified the grid exit point at Edendale (EDN3301), in the lower South Island, from conforming to non-conforming.
Decision on 21 December 2024 under-frequency event
Following consultation the Electricity Authority has decided that Transpower as the grid owner was the causer of the 21 December 2024 under-frequency event.
New member appointed to Common Quality Technical Group
The Electricity Authority has appointed Philip Wong Too (Technical Director Renewables at Mercury Energy) to its Common Quality Technical Group.
Minor changes to retail market monitoring notice
Following feedback from retailers, the Electricity Authority has made some minor amendments to the clause 2.16 notice for retail market monitoring issued on 17…
Investigation into alleged breaches by Switch Utilities Limited
The Electricity Authority Te Mana Hiko is investigating alleged breaches of the Electricity Industry Participation Code 2010 by Switch Utilities Limited. On 3 …
Decision to discontinue investigation of Stack Power Limited
The Electricity Authority has decided to discontinue an investigation into Stack Power Limited.
Technical amendments to improve transmission pricing methodology
We’re inviting people to share their views on two proposed technical amendments to the transmission pricing methodology. The transmission pricing methodology t…
Authority approves System Operator’s changes to the Ancillary Services Procurement Plan
The Electricity Authority Te Mana Hiko has approved changes proposed by the System Operator to the Ancillary Service Procurement Plan. This set of minor change…
Join our quarterly update: 21 August 2025
The Electricity Authority Te Mana Hiko will host its next quarterly update on Thursday 21 August, 11.00am to 12.00pm. Join this webinar to hear about our work …