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Welcome To Grid New Zealand

This website gives you information on Transpower's existing and future investment in the National Grid - New Zealand's high voltage transmission network.  Browse and bookmark our website to stay informed about our work to keep the energy flowing throughout New Zealand.

What's New

20 Aug 2010: Draft Centreline for the Wairakei to Whakamaru Replacement Transmission Line released

Transpower released a draft centreline for the replacement transmission line between Wairakei and Whakamaru substations.

16 Aug 2010: Grid New Zealand Update

The August update of projects in approval process is now available.

16 Jul 2010: Grid New Zealand Update

The July update of projects in approval process is now available.

18 Jun 2010: Grid New Zealand Update

The June update of projects in approval process is now available.

18 May 2010: Major construction starts on HVDC inter-island link at Benmore substation

Construction work on the new Pole 3 of the HVDC inter-island link starts at Benmore substation.

Major Projects

North Island Grid Upgrade

Building a new power link between Whakamaru and Auckland.

North Auckland and Northland Grid Upgrade Project

Reinforcing the network with new cables and a transformer.

HVDC Inter-Island Link Project

Replacing Pole 1 of the inter-island HVDC link with a new pole.

Wairakei to Whakamaru Replacement Transmission Line Project

Building a new double circuit transmission line between Wairakei and Whakamaru.

Current Grid New Zealand Projects

New Zealand Project Map
Northland Auckland Waikato Bay of Plenty Taranaki Central North Island Hawkes Bay Wellington Nelson - Marlborough Canterbury South Canterbury West Coast Otago - Southland
New Zealand Project Map New Zealand Project Map
Northland Auckland Waikato Bay of Plenty Taranaki Central North Island Hawkes Bay Wellington Nelson - Marlborough Canterbury South Canterbury West Coast Otago - Southland

Roll over a region of New Zealand, then select a project from the list.

Project Type (about...)

  • Region Project Icon Regional Project
  • Region Project Icon Backbone Project