Application to the Commerce Commission for Ōtāhuhu–Whakamaru A and B Lines Reconductoring Project

In December 2025, we provided our submission for investment approval. The Commission has reviewed our proposal and given draft approval, and it will now consult on its draft decision.
Rural transmission lines

On 9 December 2025, we provided our submission to the Commerce Commission for investment approval. The Commission has reviewed our proposal and given its draft approval and will now consult on as part of its process to rigorously test Transpower’s investment plans to make sure we continue to deliver Kiwis a reliable electricity supply at the best value for money.

Main proposal document:

Ōtāhuhu Whakamaru Line Reconductoring Listed Project - Overview

Supporting documentation:

OTA-WKM - Attachment 1 - Condition Assessment Report
OTA-WKM - Attachment 2 - Demand and Generation Scenarios
OTA-WKM - Attachment 3 - Benefits Modelling
OTA-WKM - Attachment 4 - Indicative Pricing Impacts
OTA-WKM - Attachment 5 - Board and CEO Certification