Publications and resources

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

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

In our role as system operator, Transpower has commissioned an external report to investigate the potential value of DER in a New Zealand context. This report broadly considers the value of...

On 2 March 2017, New Zealand experienced a major and complex power system event. The event resulted in the South Island power system splitting into two separate systems.

This publication presents an update to the ten year forecast fault levels report. The Connection Code contained in Schedule 8 to the Benchmark Agreement requires Transpower to publish a...

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....

This factsheet provides an overview of our business, including financial and investor highlights.

This report describes Transpower's financial and operational performance for the financial year ending 30 June 2015.

This report describes Transpower's financial and operational performance for the financial year ending 30 June 2014.

This report describes the analysis undertaken by Transpower at the request of the Industry Transmission Pricing Project working group.