Publications and resources

Our strategy to support the future growth of our country's largest city.

A supporting document to our 2017 Integrated Transmission Plan, the Asset Management Plan explains how we undertake asset management.

A supporting document to our 2017 Integrated Transmission Plan.

This information sheet details Transpower's measures around biosecurity.

This factsheet provides information on the issues surrounding the growing and harvesting of forestry near transmission lines.

This Statement of Corporate Intent (SCI) is submitted by the Board of Directors of Transpower New Zealand Limited, in accordance with Section 14 of the State-Owned Enterprises Act 1986.&nbsp...

The methodology to allocate the HVDC costs to South Island (SI) generators was changed in 2015.

The Electricity Code of Practice provides minimum approach distances in and around transmission structures and conductors.  These diagrams provide quick guidance and reference on minimum...

A supporting document to our 2016 Integrated Transmission Plan, the Asset Management Plan explains how we undertake asset management.

This guide provides information on the types of issues that development near National Grid lines can have on the lines and, conversely, the issues National Grid lines can have on development....