Mobile substation

Our mobile substation enables us to keep our customers' power on while we work.

It allows us to bypass zone substations during planned maintenance and upgrades, which is more convenient for our customers as there are no planned outages to allow the work to go ahead.

From a safety perspective, using the mobile substation means our field crews no longer work near live equipment, and it removes the pressure to complete maintenance within a scheduled planned outage time.

Mobile substation snapshot

Power bypasses zone substations and flows through the mobile
Allows safe maintenance and installation work on zone substations
No disruption during switching from normal supply to the mobile substation
Eliminates the need for lengthy planned outages during substation work
Can be deployed in the event of major unplanned substation faults
Powerco maintains 115 zone substations on its network
Mobile substation weighs 38 tonne and is 15.7m long
Specifications allow unrestricted movement on New Zealand roads
Engineered to withstand the shocks of road travel
Trained team of contractors oversee each mobile installation
Only takes a couple of days to set mobile up at most sites

Latest project update

Watch how it works

Thursday, August 22, 2024

Take a tour of the mobile substation with Powerco's Mike Carson while it was on the job in Douglas, eastern Taranaki.

Milestones

Mid-2024

Supporting Fonterra Morrinsville

The mobile sub was used as a dedicated supply to Fonterra Morrinsville while we completed an upgrade of our Morrinsville Substation.

September 2022-2023

Heading north

So our Eltham customers remained connected while we worked, the mobile substation was based at the Eltham substation to enable an upgrade.

October 2021

Supporting Whanganui

Between October 2021 and September 2022, the mobile substation was set-up in the central Whanganui carpark of Mitre 10 Mega to enable the building of a new 11kV switchboard and switchgear at adjacent Taupo Quay Substation.

June 2021

To Castlecliff

The mobile substation moves to Whanganui’s Castlecliff substation to enable maintenance to take place on the substation’s 33kV switchboard and a protection upgrade.

March 2021

Supporting Pātea

The mobile substation moves to the Livingston Substation in South Taranaki to ensure security of supply for Pātea and surrounding communities after a number of unplanned outages.

July 2020

Deployed to Douglas

The mobile substation is installed at Douglas Substation in Taranaki, allowing customers to remain connected while essential upgrades, repairs and general maintenance is carried out on the substation.

March 2020

Substation on the move

After being constructed in 2019 and testing completed, the mobile substation makes its way from the South Island, where it was built, to Whanganui.

Project update

Watch how it works
Thursday, August 22, 2024
Take a tour of the mobile substation with Powerco's Mike Carson while it was on the job in Douglas, eastern Taranaki.
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Project update

Keeping Eltham powered
Monday, July 31, 2023
Our mobile substation has been keeping customers powered in the South Taranaki community of Eltham.
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Project update

Whanganui benefits from mobile substation
Thursday, June 30, 2022
Our Whanganui customers have been the latest to benefit from our mobile substation, which keeps customers' power on while we work.
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Project update

Keeping rural Taranaki connected
Wednesday, March 31, 2021
Taranaki communities in and around Douglas and Pātea have been the first to benefit from the mobile substation.
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Project update

Mobile substation on the move
Wednesday, June 10, 2020
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