General news

Changes to stress test regime now in effect

  • Wholesale

The Electricity Authority has updated the stress test regime, guidance and stress tests to protect consumers and support security of supply ahead of winter 2025.

These changes took effect on 15 May 2025, as per our Code amendments ombibus #5 decision paper.

We would like to notify market participants that we have changed the formula in paragraph 2.75 of the stress testing guidance. Disclosing participants are requested to revise their calculation to apply this new formula.

For any queries, contact info@ea.govt.nz

About stress tests

Related News

Electricity Authority moves to level the power playing field

The Electricity Authority Te Mana Hiko is moving to level the playing field between the four large gentailers and independent participants in the electricity m…

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…

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.