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 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...

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

In partnership with Massey University, we're developing a substation robot service to provide rapid, real time situational awareness at some of our most remote sites. We are using a &#39...

Small lightweight detectors based on low power, low bandwidth Internet of Things (IoT) devices promise to deliver simple, reliable detection so we can quickly respond to climbing...