Publications and resources

The Electricity Code of Practice provides minimum approach distances in and around transmission structures and conductors.  These diagrams provide quick guidance and reference on minimum...

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

This guide provides information on the types of issues that development near National Grid lines can have on the lines and, conversely, the issues National Grid lines can have on development....

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 Electricity Industry Participation Code (the Code) requires Transpower to publish the Grid Reliability Report (GRR), Grid Economic Investment Report (GEIR) and the ten year forecast fault...

The 2015 Asset Management Plan explains how we undertake asset management and describes our plans for 16 different asset classes.

This Interim Report outlines the results of the first financial year (2015/16) of the second Regulatory Control Period (RCP2).

This 2014/15 Annual Regulatory Report reports on performance for the year ended 30 June 2015 and transmission...

This factsheet provides an overview of our business, including financial and investor highlights.

This report describes Transpower's financial and operational performance for the financial year ending 30 June 2015.