Winda Energy, a Finnish renewable energy project developer, is entering the energy storage sector with its first industrial-scale battery energy storage system (BESS) in Rautavaara, Finland.
The 30MW/60MWh facility marks a strategic expansion of Winda’s portfolio, which already includes over 30 wind and solar projects.
Developed in partnership with Czech energy tech firm Second Foundation, the project aims to enhance grid stability and accelerate Finland’s clean energy transition by enabling more efficient integration of renewables.
“The Rautavaara project opens the door for Winda to the growing energy storage market, which is one of the cornerstones of Finland’s clean transition. This is a strategically significant step for us, perfectly complementing our development portfolio of over 30 wind and solar power projects,” says Tuomas Hooli, CEO of Winda Energy.
Construction is scheduled to begin in autumn 2025, with commercial operations expected in 2026. The BESS will play a critical role in balancing electricity supply and demand, mitigating price volatility, and supporting grid flexibility.
The project is a pan-European collaboration: the integrated battery system will be supplied by German/Czech firm Gaz Energy, while the inverter technology will come from Spanish manufacturer Ingeteam.
