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Overview

This is one of the largest transmission projects to be undertaken in New Zealand since 1960. It is vitally important to meet the growing electricity demand in the upper North Island.

There are three major components: an overhead transmission line, substations and underground cables. The 186 km, 400 kV capable overhead transmission line runs from a new substation at Whakamaru to a new switching station in South Auckland. Four underground 220 kV cable circuits will run from this substation - two circuits to a new substation at the existing Pakuranga site and, at a later date, two circuits to Otahuhu substation.

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Taupo South Waikato Waipa Matamata Piako Waikato Franklin Manukau City
Region Map. Taupo South Waikato Waipa Matamata Piako Waikato Franklin Manukau City

LATEST NEWS

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Construction finishing for winter season at Pakuranga substation

Over summer we have constructed the foundation area for the switchyard.

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Construction now started in Waikato

Construction work on the new 186km, 400 kV capable, overhead transmission line starts this month

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Construction Newsletter Issue 3

Information on the first transmission tower erected and the construction schedule.

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North Island Grid Upgrade Fact Sheet

An overview of the project providing key facts and information.

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CommunityCare Fund: Supporting communities

The CommunityCare Fund supports projects in communities affected by our assets.

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CommunityCare Fund launches waka

System Operations Manager, Dan Twigg officially helped to launch two waka ama in Mangakino north of Taupo.

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PROJECT TIMELINE

01.02.2010
Construction at Pakuranga substation starts
01.02.2010
Construction of overhead line starts
01.09.2010
Excavation of cable route starts
01.08.2010
Cable trenching starts
01.10.2010
Construction at Brownhill/Whakamaru substations start
01.04.2011
Stringing of transmission line starts
01.04.2012
Project ends