Brunswick to Stratford Capacity Investigation

Region Map
Brunswick-Stratford 'B' Line
Brunswick-Stratford 'A' Line

What we're doing

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.

Transpower is carrying out an investigation into the capacity requirements between our Brunswick and Stratford substations in Taranaki.  Depending on outcome, this may result in a major capex proposal to the Commerce Commission to replace conductor, remove or build a new line.


Why we're doing it

Two 220 kV lines, carrying three circuits in total connect our Brunswick and Stratford substations presently.  Future likely maintenance costs for the older and smaller of these lines is bringing into question what future configuration would best suit New Zealand given future demand from the region.

More Information

We have released our long list consultation for this investigation (October 2018), received submissions and provided a summary of submissions received (February 2019).  See documents below.  We are now working on next steps, with a view to potentially submitting a major capital project to the Commerce Commission for funding approval before the end of 2021. 



BRK-SFD Summary of Submissions [ pdf 685.33 KB ]
Contact Energy Submission [ pdf 114.52 KB ]
Powerco Submission [ pdf 334.58 KB ]
MEUG Submission [ pdf 122.45 KB ]
Pouakai NZ Submission [ pdf 625.67 KB ]
Methanex Submission [ pdf 341.4 KB ]
BRK-SFD Long List Consultation [ pdf 1.24 MB ]