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Siilinjärvi, Finland
Olana Energy Oy’s energy storage project in Siilinjärvi, located just outside the city of Kuopio, reached commercial operation (COD) in Q2/2025.
The 10 MW / 12 MWh battery energy storage system (BESS) is connected to the Savon Voima DSO grid and was constructed internally by Olana’s in-house construction team, Olana Energy Construction. The project demonstrates Olana’s capability to deliver high-quality energy storage assets efficiently and independently
Key numbers
Power
Capacity
Completed
10 MW
12 MWh
Q2 / 2025

Siilinjärvi BESS site covered in snow during winter 2025.
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