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...

Advances in battery technology are expected to play an important role in enabling our energy future. Distributed Battery Energy Storage Systems (BESS) in New Zealand examines the operational...

We have undertaken an investigation of the Value of Lost Load (VoLL) to inform our expenditure decisions and regulatory applications. ...

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.

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

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....

On 11 December Transpower’s HVDC equipment suffered a bi-pole trip while transferring 90 MW to the North Island. The cause was unexpected and, while an explanation was&nbsp...