Transpower major capital proposal
Transpower may submit a proposal to seek approval for a major capital investment at anytime. These investments enhance or develop the transmission network, rather than simply replace existing assets.
Major capital projects have expected costs of greater than $20m. Financially, these projects are standalone from the base expenditure we approve at the outset of the regulatory period, with separate incentive arrangements. Transpower is not able to use funds from its base allowance, or an approved major capital project to fund over expenditure of another major capital project.
The Capital Expenditure Input Methodology sets out the requirements Transpower follows when preparing major capital proposals and the criteria that we use to review and approve a major capital proposal.
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HVDC Link Upgrade
Transpower have notified us of their intention to plan a major capex project to upgrade its HVDC submarine cables and to increase the cable capacities.Read more -
Redclyffe 220kV switchyard resilience
Transpower have notified us of their intention to plan a major capex project at its Redclyffe substation.Read more -
Upper South Island MCP
Transpower have notified us of their intention to plan a major capex project in the Upper South Island region.Read more -
Waikato region interconnection capacity MCP
Transpower have notified us of their intention to plan a major capex project in the Waikato region. This potential investment need has been identified by Transpower based on its demand forecasts.Read more -
Western Bay of Plenty region
Transpower is planning a major capex proposal to investigate maintaining a reliable electricity supply in the Western Bay of Plenty.Read more -
Bombay-Otahuhu Regional Major capital proposal
The transmission network supplying Bombay and Wiri substations is ageing and requires refurbishment. This network includes the transmission lines between Bombay and Otahuhu substations and Bombay and Meremere substations.Read more -
North Island grid upgrade
On 6 August 2015 we made a decision on Transpower's application to amend the major capex allowance for the North Island grid upgrade project.Read more -
Upper North Island dynamic reactive support project
On 11 November 2013 we approved Transpower's proposal to expand the geographical area within which it can test its demand response initiatives.Read more -
Upper South Island grid upgrade – stage 1
On 11 February 2013 we approved Transpower's proposal to upgrade the Upper South Island grid to increase the transmission capacity of the 220 kV circuits connected to Islington Substation.Read more