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
We have experienced a very open, transparent and pragmatic communication process with Neoen. We are asked about every decision that may impact us and for our opinion, and this is something that we value highly.
Florian Popp, Host Landowner
Collie Battery, WA
Project Lifecycle
1
Site Selection
We undertake research & early negotiations with landowners for options to lease or purchase sites that show potential for hosting renewable energy assets.
2
Feasibility
We create preliminary designs & initiate feasibility studies to identify site constraints. We commence early engagement with Traditional Owners, neighbours, local council and the community. We hold community information sessions locally.
3
Planning & Approvals
Extensive studies & surveys are undertaken to create detailed project design before submitting a Development Application (DA) to the West Australian Government. Ongoing community and governmental consultations help refine project plans. We initiate grid connection enquiries.
4
Pre-Construction
If the DA is approved, we conduct a procurement process to appoint a construction contractor. Grid connection agreements & energy contracts get finalised, and our focus shifts to securing financing from lenders. A networking session is held for local jobseekers, suppliers & businesses to discuss upcoming opportunities.
5
Construction
The site mobilises, local suppliers & jobseekers are appointed, and civil, mechanical & electrical works commence. The project becomes a reality as the construction team builds and commissions the asset.
6
Operations
We maintain the asset for at least 25 years to ensure strong energy generation & revenue optimisation. Our community benefit-sharing program begins contributing to local initiatives.
- We Are Here
7
Decommissioning or Site Renewal
We decide on whether to continue operations or decommission the site. New construction works or site rehabilitation is undertaken.
News
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.