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Overview

We are constructing and installing new AC/DC converter equipment at Benmore (South Island) and Haywards (North Island) substations to increase capacity of the high voltage direct current (HVDC) inter-island link.

The new converter equipment, known as Pole 3, replaces the Pole 1 equipment at both substations with state-of-the-art thyristor valve units. The HVDC Pole 3 project, worth up to $672 million, will be commissioned in early 2013, find out more.
Watch a video overview of the project

SELECT A REGION

Region Map.
Haywards Substation HVDC Line Benmore Substation
Region Map. Hayward's Substation Hayward's Substation HVDC Line Benmore Substation Benmore Substation

PROJECT TIMELINE

01.01.2010
Civil works starts
01.05.2010
Building construction starts
01.06.2011
Installation of primary plant begins
01.08.2012
Pole 1 decommissioning starts
05.12.2012
Testing starts