Publications and resources

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 brochure provides guidance to operating large irrigators near existing overhead high voltage transmission lines, and suggests ways to avoid electrical hazards.

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

On 11 December Transpower’s HVDC equipment suffered a bi-pole trip while transferring 90 MW to the North Island. The cause was unexpected and, while an explanation was&nbsp...

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

Transpower regularly publishes a Transmission Planning Report (formerly the Annual Planning Report) which details the status of all projects that Transpower considers possible over the next...

This statement is submitted by the Board of Directors of Transpower New Zealand Limited, in accordance with Section 14 of the State-Owned Enterprises Act 1986. It sets out the Board’s...

The third quarter operational and financial performance update report for the nine months to 31 March 2015 shows progress against Transpower’s Statement of Corporate Intent...

The report describes Transpower's financial and operational performance for the six months to 31 December 2014.