Publications and resources

Flying near power lines is dangerous as the conductors (wires) can be difficult to see.

Our 2019/20 Annual Report is a print-friendly PDF file that includes our corporate governance and financial statements,...

Transpower regularly publishes a Transmission Planning Report (TPR) which details the grid asset capability over the next 15 years. ...

As part of our commitment to our stakeholders we regularly hold industry forums to focus on topical issues, to help us identify and set out our priorities.

As part of our commitment to our stakeholders we regularly hold industry forums to focus on topical issues, to help us identify and set out our priorities. Presentations and other materials...

This 2017 Annual Review (online only) is an integrated report of our activities and their alignment to our strategic priorities. The 2017 Annual Report is a print-friendly PDF file that...

In Transmission Tomorrow, we predicted that in the future battery technologies will change the operation and role of the National Grid. Learn how we...

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...

Electricity transmission, as well as many electrical appliances, produces electric and magnetic fields (EMF) of extremely low frequency.

This factsheet describes the nature of electric and magnetic fields particularly as they relate to electricity transmission.