Projects

Transpower is replacing cable joints on an underground electricity cable in Auckland between our Brownhill and Pakūranga substations.

Transpower is investigating possible electricity infrastructure investments for the upper South Island, to ensure a reliable power supply for the future as the region grows and more homes and businesses switch their energy use to electricity.

Huapai has an existing switching station which will need to develop into a substation to provide Northland more resilience and be available for demand growth in North Auckland.

This project is about increasing the capacity of the 220 kV grid between Bunnythorpe and Whakamaru.

Transpower plans to replace the transmission towers in and around Newlands and Woodridge in Wellington with modern steel poles, with work happening during 2024 and 2025.

We are replacing the conductor (wire) on the Bunnythorpe-Wilton transmission line in Wellington.

We are undertaking a project to build a new control relay room at our Penrose substation site and decommission the existing building.

​We've embarked on a large restoration project to improve the biodiversity and ecological condition of the land and waterways surrounding our Takapū substation.

We are undertaking a project to refurbish the eight HVDC Pole 2 transformers.

We will soon complete the construction of a digital substation laboratory in our Wellington office.

Transpower is considering the concept of Renewable Energy Zones (REZs) and a potential pilot project in Northland.