Publications and resources
Resources search
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Grid Reliability, Economic Investment and Fault Level Report
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...
- 01 May 2016
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2016 GRR GEIR April update.pdf [ pdf 1 MB ]
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2015 Asset Management Plan
The 2015 Asset Management Plan explains how we undertake asset management and describes our plans for 16 different asset classes.
- 14 April 2016
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2015 Transpower Asset Management Plan [ pdf 2.42 MB ]
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Irrigators and Transmission Lines
This brochure provides guidance to operating large irrigators near existing overhead high voltage transmission lines, and suggests ways to avoid electrical hazards.
- 01 April 2016
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Irrigators and Transmission Lines.pdf [ pdf 211.97 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 ]
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Annual Regulatory Report 2014/15
This 2014/15 Annual Regulatory Report reports on performance for the year ended 30 June 2015 and transmission...
- 18 December 2015
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Annual regulatory report 2014-15.pdf [ pdf 1.65 MB ]
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Stay safe around transmission lines
A guide to help keep safe when working around transmission lines. Contact your landowner liaison officer if you wish to obtain copies of safety stickers for your mobile plant or signage...
- 16 December 2015
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Safety around transmission lines - keep your distance [ pdf 446.03 KB ]
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Business factsheet
This factsheet provides an overview of our business, including financial and investor highlights.
- 01 November 2015
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Business Fact Sheet - Nov 2015.pdf [ pdf 2.24 MB ]
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Annual Report 2015
This report describes Transpower's financial and operational performance for the financial year ending 30 June 2015.
- 22 October 2015
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Transpower 2015 Annual Report.pdf [ pdf 2.92 MB ]
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Transmission Planning Report 2015
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...
- 29 July 2015
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Foreword and Executive Summary [ pdf 4.94 MB ]
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