Overview
Collie Battery is Neoen’s first 4-hour-long battery and its first major project in Western Australia. The project has development approval for 1 GW / 4 GWh.
Collie Battery was built in stages:
- Stage 1, sized at 219 MW / 877 MWh, was constructed in less than 16 months and has been operating since October 2024.
- Stage 2, sized at 341 MW / 1,363 MWh, was constructed in less than 15 months and has been operating since July 2025.
Collie Battery can provide short-term storage in peak times to ease pressure on the grid. It can charge and discharge 20% of the average demand in Western Australia’s South-West Interconnected System (SWIS).
Battery
Battery storage allows us to store the energy and discharge it into the grid whenever it’s needed.
Click map to enlarge
Location
Collie Battery is located approximately 13 km north-east of the town of Collie, 4km north-east of the Collie Power Station in the Southwest region of Western Australia.
It will connect into Western Power’s new Palmer Terminal substation in the SWIS.
Benefits
For western Australia
More renewables, reliable power, has the capacity to lower energy costs
News
Shire of Collie representative Councillor Ian Miffling said the DA proposal was supported by the shire – “It’s been very well presented to the council and the community — there has been a good process.”
Get Involved
With a balanced portfolio of wind, solar and big battery projects, we are Australia’s largest 100% renewables company.
We own and operate many of our projects for the long-term and are committed to sharing the benefits with surrounding communities as a responsible neighbour. Our dedication to the community and environment has made us a ‘developer of choice’ and a pioneer in the industry.
We have contributed over 4.3 GW of renewable energy assets representing over $7 billion investment in 12 years towards Australia’s energy transition.