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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Managing Electrical Hazards
...
- 28 September 2021
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Info Sheet Civil EHMP.pdf [ pdf 384.4 KB ]
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Best practice forest management – trees and transmission lines
A best practice guide on the management of trees around transmission lines.
- 19 January 2021
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Best practice forest management.pdf [ pdf 590.72 KB ]
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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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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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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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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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Transpower's Keys to Life
Tranpower's "Keys to Life" are our key safety expectations for Transpower staff and contractors. They are critical to individual safe work practices.
- 26 July 2018
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Transpower's Keys to Life [ pdf 1.13 MB ]
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Report on 2 March 2017 South Island AUFLS Event
On 2 March 2017, New Zealand experienced a major and complex power system event. The event resulted in the South Island power system splitting into two separate systems.
- 09 July 2018
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