Redclyffe 220kV switchyard resilience
Transpower have notified us of their intention to plan a major capex project at its Redclyffe substation.
This potential investment has been identified by Transpower as the Redclyffe substation is prone to flooding, similar to that during Cyclone Gabrielle on 14 February 2023, which lead to interruption to power supply in the greater Hawke’s Bay region.
On 22 May 2025, Transpower and the Commission agreed to a consultation programme, and timeframes for the submission and consideration of this major capex proposal.
On 12 June 2025, Transpower submitted to the Commission, its proposal for Redclyffe 220kV switchyard resilience major capex project.
On 9 December 2025, we published our Draft decision on Transpower’s Redclyffe MCP proposal.
We have also published a Notice of Intention for Potential amendments to Transpower Capital Expenditure Input Methodology – Transpower major capex incentive provisions. We intend to publish the proposed amendments and a draft decision reasons paper in January 2026, with a consultation period to follow.
All documents can be found under the ‘Documents’ tab below.
We want to hear from you
We welcome views on our draft decision on Transpower’s Redclyffe MCP proposal.
Submissions are due by 5pm Friday 30 January 2026, and cross-submissions are due by 5pm Friday 13 February 2026.
Submissions can be emailed to infrastructure.regulation@comcom.govt.nz using the subject line ‘Submission on Transpower’s Redclyffe MCP draft decision’.
Please provide both a format suitable for word processing (such as a Microsoft Word document), as well as a ‘locked’ format (such as a PDF) for publication on our website.
For further information please email infrastructure.regulation@comcom.govt.nz using the reference Transpower Redclyffe MCP.