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.

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

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. ...

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

This 2017 Annual Review (online only) is an integrated report of our activities and their alignment to our strategic priorities. The 2017 Annual Report is a print-friendly PDF file that...

In Transmission Tomorrow, we predicted that in the future battery technologies will change the operation and role of the National Grid. Learn how we...

This Statement of Corporate Intent (SCI) is submitted by the Board of Directors of Transpower New Zealand Limited, in accordance with Section 14 of the State-Owned Enterprises Act 1986.&nbsp...

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