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Synergy awards contract for Collie battery energy storage system balance of works

An artist's impression of CBESS

As announced by the Western Australian Government here.

Synergy has awarded SCEE Electrical a $160 million contract to undertake civil, electrical and major equipment installation works for the Collie Battery Energy Storage System.

The works will include installing and commissioning about 640 battery container units, 160 inverters and 220 kilometres of high-voltage cabling, as well as managing a laydown facility at the Port of Bunbury.

The Collie battery, which will have a 500 megawatt/2000 megawatt hour capacity, will be one of the biggest in the world when complete, and is scheduled to come online in late-2025.

The project is expected to create up to 500 jobs at the peak of construction.

The Collie battery is the third battery being delivered by Synergy on behalf of the State Government, with Kwinana Battery Stage One already operating and Kwinana Battery Stage Two under construction and due for completion later this year.

For more details visit Perth contractor selected for $160 million in Collie battery works | Western Australian Government (

Comments attributed to Energy Minister Reece Whitby:

"This contract will mean more jobs for Western Australians and be of great benefit to the local economy.

"Synergy's Collie battery will be a major piece of infrastructure when complete and will play a critical role in Western Australia achieving net zero emissions by 2050."

Comments attributed to Collie-Preston MLA Jodie Hanns:

"Collie's Big Battery project will ensure Collie remains vital to the ongoing energy needs of Western Australians. 

"Collie has played an important role in the energy sector over the past century and will continue to be at the heart of the energy system well into the future."

CAPS: An artist's impression of the Collie battery energy storage system.