Projects | Transpower

HVDC Submarine Cable Replacement and Enhancement Investigation

Last updated: 04 Sep 2024

Transpower plans to replace the ageing electricity cables that cross Cook Strait at the end of the decade and is considering whether to also increase the capacity of the cables at the same time.

Helicopter Works 2024

Last updated: 26 Aug 2024

Transpower regularly flies its transmission lines to survey for slips and/or assess conductor (wire) condition.

Upcoming Planned Outages

Last updated: 17 Sep 2024

Sometimes Transpower needs to turn the power off to work on its equipment. Upcoming outages are listed here.

Newlands and Woodridge Towers to Poles

Last updated: 19 Aug 2024

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.

Waikato and Upper North Island Voltage Management Investigation

Last updated: 15 Aug 2024

We're making investments to manage voltage stability in the Waikato and Upper North Island regions.

Waikato Regional Interconnection Capacity Project

Last updated: 14 Aug 2024

As demand for electricity grows in the Waikato, Transpower is considering investment options to ensure the power supply remains reliable.

Western Bay of Plenty Development Plan

Last updated: 30 Jul 2024

Information about planning for increased electricity capacity in the Western Bay of Plenty

Edgecumbe to Kawerau Lines - Thermal Upgrade

Last updated: 23 Jul 2024

Transpower is undertaking work to release more capacity in its network between Edgecumbe and Kawerau.

Automated Under Frequency Load Shedding (AUFLS) Project

Last updated: 02 Jul 2024

This Transpower project provides information on the transition from a two block load shedding scheme to a four block load shedding scheme. The four block scheme is planned to be operational by 2025.