Publications and resources
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Public Helicopter Use around Transmission Lines
Flying near power lines is dangerous as the conductors (wires) can be difficult to see.
- 14 December 2020
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Helicopter user near transmission lines [ pdf 513.59 KB ]
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2019/20 Annual Report and Review
Our 2019/20 Annual Report is a print-friendly PDF file that includes our corporate governance and financial statements,...
- 29 September 2020
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Transpower Annual Report 2019-20.pdf [ pdf 5.16 MB ]
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2018 Transmission Planning Report
Transpower regularly publishes a Transmission Planning Report (TPR) which details the grid asset capability over the next 15 years. ...
- 04 February 2019
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Transmission Planning Report 2018 - FINAL - 22 Nov 2018.pdf [ pdf 16.9 MB ]
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2017 Annual Report and Review
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...
- 07 November 2017
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Transpower Annual Report 2016_17.pdf [ pdf 570.64 KB ]
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Battery Storage in New Zealand
In Transmission Tomorrow, we predicted that in the future battery technologies will change the operation and role of the National Grid. Learn how we...
- 07 September 2017
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Battery Storage in New Zealand.pdf [ pdf 1.94 MB ]
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Statement of Corporate Intent 2017/18
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. ...
- 25 July 2017
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Transpower Statement of Corporate Intent 2017/18 [ pdf 3.76 MB ]
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The Development Guide
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....
- 14 July 2016
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The Development Guide - Full [ pdf 13.74 MB ]
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Statement of Corporate Intent 2016/17
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. ...
- 11 July 2016
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Transpower Statement of Corporate Intent 2016/17 [ pdf 603.48 KB ]
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2015 / 16 Interim Report
This Interim Report outlines the results of the first financial year (2015/16) of the second Regulatory Control Period (RCP2).
- 23 March 2016
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Interim report FINAL.pdf [ pdf 773.58 KB ]
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HVDC bi-pole trip and change to under frequency reserve risk: technical commentary
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 ...
- 01 March 2016
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3190 HVDC Bipole Trip 11 Dec 2015 Technical Commentary.pdf [ pdf 541.39 KB ]