Info

On 9 Aug 2021 the country faced the largest demand peak in response to one of the coldest nights of the year. As system operator, we called a Grid Emergency when insufficient generation was available to meet demand, leading to some customers being disconnected. A number of reviews of this event are underway including an independent review commissioned by Transpower to help us understand the event and industry’s response on the night, to identify where we need to make changes.

Information related to RCP3 will be updated here regularly.

Integrated Transmission Plan (ITP)

The ITP is a suite of documents outlining our ten-year plans. It brings together our services, expenditure forecasts and asset management plans. A link to each document is available below.

Quick Links

Submission

Information contained in the submission for Regulatory Control Period 1 may be found on the Commerce Commission website, here.

NMIR was implemented to take advantage of the new HVDC controls that enabled reserve response from one island to cover AC events in the other island. These changes reduced the amount of reserves required to maintain system security, releasing more generation from the reserve market to the energy market, creating market benefits.

Prudent Discount Policy (PDP) Consultation

Questions and Answers

We have listed below common questions we have received from industry along with our responses.  We will continue to update this section and share with participants any updates.

Questions and answers are listed by reverse chronology - the most recent questions and answers appear first. When more than one question is asked in a single email, questions are numbered within each date entry.

We provided regular progress updates on our work as we developed a TPM proposal for the Authority, including information about engagement opportunities and consultations. The Authority is now consulting a proposed TPM.

Past updates

08 Oct 2021: Electricity Authority announce consultation on proposed new TPM