North Taranaki Interconnection Investigation

Region Map
Electricity consumers
46,640
in Northern Taranaki
Number of options being considered
14
to keep Northern Taranaki secure

We need to continually operate, maintain and develop New Zealand's transmission network - the National Grid - to ensure we meet the ongoing electricity needs of New Zealanders.

We are investigating options for continuing to provide reliable transmission to North Taranaki and New Plymouth given equipment at our New Plymouth substation is nearing the end of its useful life, and changes in ownership of land there.

 

Why we're doing it

The New Plymouth substation connects the Taranaki regional 110 kV network to the national grid via one 220/110 kV interconnecting transformer which provides approximately half of the supply to the Taranaki area.  Continued uses of the New Plymouth site is unlikely to be feasible in the long term as the property has been purchased by Port Taranaki for its own purposes.   We will consider all possibilities for the replacement of the asset, including site relocation, new generation, demand response, and other transmission options.  The investigation will determine the most cost effective whole of life solution that will provide the required level of service into the future.

More information about the project

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