Publications and resources

Tranpower's "Keys to Life" are our key safety expectations for Transpower staff and contractors. They are critical to individual safe work practices.

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.

As part of our commitment to our stakeholders we regularly hold industry forums to focus on topical issues, to help us identify and set out our priorities.

This information sheet provides important information on Mycoplasma bovis and best practice measures in its containment.

As part of our commitment to our stakeholders we regularly hold industry forums to focus on topical issues, to help us identify and set out our priorities. Presentations and other materials...

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

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...

This information sheet details Transpower's measures around biosecurity.

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 factsheet provides information on the issues surrounding the growing and harvesting of forestry near transmission lines.