Pre-proposal consultation and submission information

Prior to finalising our proposal we reached out to industry, special interest groups and members of the public to seek consultation on our RCP3 proposal. Our consultation document Securing Our Energy Future 2020 -2025 was provided at that time. We encouraged stakeholders to help us shape our RCP3 proposal and received submissions which may be viewed here.

Rangitata Flooding Event - Islington-Livingstone circuit outage

Four key transmission lines cross the Rangitata River supplying the Upper South Island (USI) and HVDC circuit. The flooding of this river on 8 December 2019 led to 9 transmission towers on the Islington-Livingstone section of the line sustaining extensive damage. Due to the extended period of time that it is expected to take to permanently repair the line, information from the System Operator will be published on this page.


Information on outages may be found in this section of our website.

Distributed BESS in New Zealand – Power System Operational Implications – Technical Report

Advances in battery technology are expected to play an important role in enabling our energy future. Distributed Battery Energy Storage Systems (BESS) in New Zealand examines the operational impact on the power system of the widespread adoption of these systems in conjunction with the large-scale uptake of solar PV and electric vehicle charging and identifies what is required to enable a successful integration and ensure a reliable fit-for-purpose power system.

Transmission Alternatives (TA) Enquiry Form

Transpower is adapting the information and investigations process to better incorporate the opportunities offered by Transmission Alternatives (TAs), including distributed generation (DG), to provide services to our grid.

This form can be used to submit your enquiry on Transmission Alternatives. 

Fields marked with an asterisk (*) are required.


Contact details
Location details
Service description
Please select the type of service for each of the distribution companies identified above.