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 Pole 3 project wins 2 safety awards
The HVDC Pole 3 project has won two awards for safety at Transpower’s inaugural STAR Awards.
Milestone reached
Each HVDC substation now has a roof. The Benmore lift occurred 19-20 May and Haywards during 31 May–1 June.
HVDC Transformers
Four of the eight 240 tonne converter transformers for the HVDC Pole 3 project have arrived in New Zealand.
A big pour at Benmore Substation
340 cubic metres of foundation concrete was poured at Bemore substation recently.
PROJECT GALLERY
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