Projects

HVDC Submarine Cable Replacement and Enhancement Investigation

Last updated: 10 Feb 2025

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.

Automated Under Frequency Load Shedding (AUFLS) Project

Last updated: 19 Dec 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.

Future Security and Resilience

Last updated: 12 Dec 2023

We are identifying challenges and opportunities as part of the Electricity Authority's Future Security and Resilience project.

Net Zero Grid Pathways programme (NZGP)

Last updated: 12 Dec 2023

How we can enable new renewables and electrification across all of Aotearoa out to 2035 through developments in the grid backbone.

Waiotahe substation redevelopment

Last updated: 12 Dec 2023

Transpower needs to redevelop its Waiotahe substation in the Eastern Bay of Plenty to accommodate new solar generation being built