Promoting reliable electricity supply: A voltage-related Code amendment proposal
Consultation
We are seeking feedback on a Code amendment proposal that would benefit consumers by, amongst other things, lowering the risk of power supply interruptions and electrical equipment not operating properly or being damaged.
The Authority proposes to amend the Code to:
- place voltage support obligations on embedded generating stations that can export 10MW or more of electricity and which are connected at the same voltage as the connection between the distribution network and New Zealand’s transmission network, and
- lower, to 10MW, the threshold for a generating station to not disconnect from a network during an electrical fault on the transmission network.
This consultation is part of our work programme to ensure New Zealand’s power system remains secure and resilient as increased electrification of New Zealand’s economy occurs over the coming years.
The proposal follows on from our consultation Addressing larger voltage deviations and network performance issues in New Zealand’s power system, which set out short-listed options to address this problem.
We welcome your feedback on our proposal by 5pm, Tuesday 15 July 2025.
We anticipate publishing our decision on this proposal at the end of 2025.
Make a submission
The Authority’s preference is to receive submissions in Microsoft Word in the format in Appendix B to fsr@ea.govt.nz with “Consultation Paper—Promoting reliable electricity supply – a voltage-related Code amendment proposal” in the subject line by 5pm, Tuesday 15 July 2025.
If you cannot send your submission electronically, please contact fsr@ea.govt.nz or 04 460 8860 to discuss alternative arrangements.
We will publish all submissions. If you consider that we should not publish any part of your submission, please:
- indicate which part should not be published and explain why, and
- provide a version that we can publish (if we agree not to publish your full submission).
All submissions, including any parts that the Authority does not publish, can be requested under the Official Information Act 1982.