Publications and resources
Resources search
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Transmission Planning Report 2021
Transpower regularly publishes a Transmission Planning Report (TPR) which details the grid asset capability over the next 15 years. ...
- 01 October 2021
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Transmission Planning Report 2021.pdf [ pdf 7.91 MB ]
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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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Distributed BESS in New Zealand – Power System Operational Implications – Technical Report
Advances in battery technology are expected to play an important role in enabling our energy future. Distributed Battery Energy Storage Systems (BESS) in New Zealand examines the operational...
- 02 July 2019
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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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Value of Lost Load (VoLL) study
We have undertaken an investigation of the Value of Lost Load (VoLL) to inform our expenditure decisions and regulatory applications. ...
- 21 November 2018
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Value of Lost Load (VoLL) Study - June 2018.pdf [ pdf 2.23 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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Market impact assessment from changes to HVDC cost allocation
The methodology to allocate the HVDC costs to South Island (SI) generators was changed in 2015.
- 12 June 2017
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Scientia_Market_Impact_HAMI_SIMI.pdf [ pdf 1.49 MB ]
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