Projects
Upper North Island Reactive Support Investigation
Transpower is undertaking a programme of work that includes installing more dynamic voltage support equipment (like static compensators) and undertaking demand-side initiatives in the upper North Island.
(Categories: Backbone, Committed)
Otahuhu 200 Mvar Capacitors
As part of the North Island Grid Upgrade project, Transpower has identified a need to install 200 Mvar of Capacitors at Otahuhu.
(Categories: Backbone, Committed)
Maungatapere bus security upgrade
The Maungatapere 110 kV bus supplies much of the Northland 110 kV and 50 kV transmission network (Maungatapere, Kensington, Dargaville, Kaikohe, Kaitaia, Maungaturoto and Wellsford). Presently, a 110 kV bus fault at Maungatapere will cause a total loss of supply to these substations.
(Categories: Northland, Committed)
Marsden Substation Upgrade
Transpower has proposed installing duplicate bus zone protection and bus couplers on the Marsden 220 kV and 110 kV buses so that a fault on either bus will not lose the Marsden 220/110 kV interconnection.(Categories: Northland, Committed)
Pakuranga to Penrose Cables
Transpower plans to reinforce Penrose to 220 kV from Pakuranga, to augment the existing transmission between the Otahuhu and Penrose substations.(Categories: Backbone, Committed)
North Auckland and Northland Grid Upgrade Project (NAAN project)
Transpower has identified the need to increase capacity in its transmission network through Auckland and into North Auckland and Northland.
(Categories: Backbone, Committed)
Penrose to Albany Cross Harbour Cables
As part of its wider project to increase capacity in its transmission network through Auckland and into North Auckland and Northland, Transpower is planning an underground cable route reinforcing Albany substation from Penrose.
(Categories: Backbone, Committed)
Penrose New Interconnecting Transformer
As part of the North Auckland and Northland (NAAN) Grid Upgrade, Transpower is installing a new 250 MVA interconnecting transformer at the Penrose substation. The new transformer is required to meet load increases at Penrose following changes needed for other components of the NAAN project.(Categories: Backbone, Completed)
National Bus Security Upgrade Programme
Transpower has identified a number of substations throughout the country where an outage of either the 110 kV or 220 kV bus will result in a much wider loss of electricity supply to the surrounding area.(Categories: Backbone, Committed)