HVDC Inter-Island Link Project
- Estimated cost$672million
- Capacity increased to1200MW
- Average consumer impact$1.10per month
About this project
We have constructed and installed 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, was commissioned over the 2013 year (Pole 3 by 30 May).
How it impacts your electricity bill
We expect the cost of the project on all New Zealand consumers to be up to about $13.20 a year (or about $1.10 a month) for an average consumer. Over the longer term this cost will reduce.