Publications and resources

Each year Transpower publishes an Annual Planning Report which details the status of all projects that Transpower considers possible over the next 15 years.

Transpower's report to the industry on the 12 November Auto Under Frequency Load Shedding Activation (AUFLS).

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...

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...

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

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

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...

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