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Winda Energy Oy will build a 50 MW electricity storage facility with a capacity of 100 MWh in Jämsä, Central Finland, in collaboration with Czech company Second Foundation. This project follows the Rautavaara energy storage project announced in summer 2024 and signifies the exit of BHM Renewables from the project.

The Jämsä facility will be one of the largest in Finland, enhancing Winda's role in the clean energy transition by enabling efficient balancing of electricity supply and demand. Construction is set to begin in early 2026, allowing the facility to respond to grid frequency fluctuations within milliseconds and store renewable energy during peak demand. The project aligns with Winda Energy's partnership model, integrating international technology expertise with local development.