Publications and resources

A supporting document to our 2017 Integrated Transmission Plan.

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...

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.

This fact sheet provides the international and national consensus on safety guidelines for electric and magnetic field exposures.

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

A supporting document to our 2016 Integrated Transmission Plan, the Asset Management Plan explains how we undertake asset management.