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 now reviewed our proposal and given its final approval.
Rural transmission lines

On 9 December 2025, we provided our submission to the Commerce Commission for an increase to base capex allowance to recover the costs of this project. The Commission has given its final approval after rigorously testing our proposal 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