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Overview

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

The new converter equipment, known as Pole 3, will replace the 45-year old 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 completed in two stages resulting in an increase in the capacity of the overall HVDC link to 1000 MW from 2012 and 1200 MW from 2014.
Watch a video overview of the project

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LATEST NEWS

Converter transformers arrive at Haywards

Two of the four 240 tonne converter transformers are now at Haywards substation. 

HVDC Fact Sheet

Information about the HVDC Pole 3 project.

PROJECT GALLERY

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