Publications and resources

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

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...

In the rare event of a lightning strike or fault on the transmission line, towers or poles may transfer high voltage and dangerous currents into the ground for a very short instant. This is...

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

Transpower is playing a key role is determining how best to protect vulnerable power grids from devastating geomagnetic storms caused by extreme solar activity.

The performance of our HVDC link directly affects our Grid and wholesale electricity market. Anything we do to improve the efficiency and robustness of this link provides value to all...

Transmission Tomorrow - Our Strategy 2018 sets out our vision of New Zealand's electricity industry over the next 5 - 40 years.

Over the last year, our Enterprise Services Support (ESS) team has used Kanban to significantly reduce incident turnaround times.

This page contains maps, services, and diagrams relating to Transpower assets.

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