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.

Electricity transmission, as well as many electrical appliances, produces electric and magnetic fields (EMF) of extremely low frequency.

This factsheet describes the nature of electric and magnetic fields particularly as they relate to electricity transmission.

This fact sheet provides information on typical electric and magnetic field levels found in the environment including around transmission facilities.

This fact sheet discusses the health effects of electric and magnetic fields.