Publications and resources

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

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

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...

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

A supporting document to our 2017 Integrated Transmission Plan, the Asset Management Plan explains how we undertake asset management.

A supporting document to our 2017 Integrated Transmission Plan.

Our strategy to support the future growth of our country's largest city.

Our interim findings and emerging strategy to support the future growth of our largest city.

Addressing climate change, and meeting New Zealand's Paris Agreement commitments, will require our electricity system to begin planning and adapting for the future needs of our...

Shaping our draft proposal to the Commerce Commission for our third Regulatory Control Period (RCP3) depends on input from our stakeholders. We appreciate that many of you have shaped...