General news

Decisions on 30 July and 7 October 2022 under-frequency events

  • Compliance

In August 2023, the Electricity Authority consulted on its draft determinations for two under-frequency events on 30 July and 7 October 2022.

Our final determinations are that:

  • Genesis Energy Limited was the causer of the under-frequency event on 30 July 2022
  • Transpower New Zealand Limited was the causer of the under-frequency event on 7 October 2022.

Read the reasons for our determinations.

If a substantially affected participant would like to dispute these final determinations, they can provide a written notice to the Rulings Panel within 10 business days after the publication of this decision.

Notices should be sent to registrar@electricityrulingspanel.nz by 5pm on 13 November 2023.

Related News

Authority notes decision on South Pacific Energy Limited

The Electricity Authority Te Mana Hiko acknowledges a Rulings Panel decision published today which fined electricity retailer South Pacific Energy Limited $88,…

Decision on 23 October 2025 under-frequency event

An under-frequency event occurred at about 10.12am on 23 October 2025, when HVDC Pole 3 tripped offline and the frequency in the North Island fell to 49.02…

Stress test disclosures due by 25 March 2026

The stress testing regime requires certain participants in the wholesale electricity market to test their exposure to changes in spot electricity prices and re…