Publications and resources
Resources search
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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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Distributed Energy Resources (DER) Report
In our role as system operator, Transpower has commissioned an external report to investigate the potential value of DER in a New Zealand context. This report broadly considers the value of...
- 31 August 2020
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Distributed Energy Resources Report - Overview [ pdf 674.67 KB ]
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Earth Potential Rise (EPR) Mitigation Information Sheet
In the rare event of a lightning strike or fault on the transmission line, towers or poles may transfer high voltage and dangerous currents into the ground for a very short instant. This is...
- 05 May 2020
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Earth Potential Rise Info Sheet.pdf [ pdf 1.46 MB ]
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Keeping the power grid safe from solar storms
Transpower is playing a key role is determining how best to protect vulnerable power grids from devastating geomagnetic storms caused by extreme solar activity.
- 06 May 2019
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TP Innovation - Solar Flares May 2019.pdf [ pdf 2.24 MB ]
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Protecting our critical equipment
The performance of our HVDC link directly affects our Grid and wholesale electricity market. Anything we do to improve the efficiency and robustness of this link provides value to all...
- 30 March 2019
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TP Innovation - Protecting our Critical Equipment March 2019.pdf [ pdf 2.37 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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Transmission Tomorrow- Our Strategy 2018
Transmission Tomorrow - Our Strategy 2018 sets out our vision of New Zealand's electricity industry over the next 5 - 40 years.
- 01 February 2019
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Transmission Tomorrow - Our Strategy 2018 [ pdf 9.61 MB ]
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The Sun Rises on a Solar Energy Future
The Sun Rises on a Solar Energy Future is an addendum to Te Mauri Hiko and sits alongside our more technical papers on battery storage.
- 30 January 2019
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Te Mauri Hiko – The sun rises on a solar energy future.pdf [ pdf 7.32 MB ]
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Kanban breaks the backlog
Over the last year, our Enterprise Services Support (ESS) team has used Kanban to significantly reduce incident turnaround times.
- 12 December 2018
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TP Innovation - Kanban breaks the backlog.pdf [ pdf 826.18 KB ]
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Maps and GIS Data
This page contains maps, services, and diagrams relating to Transpower assets.
- 03 December 2018
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Transmission-map-north-island0721.pdf [ pdf 774.25 KB ]
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