Wärtsilä Constructs 50 MW / 100 MWh Energy Storage System for Grid Stability in Belgium
Wärtsilä has commenced construction of a 50 MW / 100 MWh battery energy storage system for Gramme Storage 1 in Belgium. This project aims to enhance the stability and sustainability of Belgium's energy grid and is expected to be completed by Q2 2027. The order was booked in Q2 2025, marking Wärtsilä's first energy storage initiative under Belgium's Capacity Remuneration Mechanism.

Wärtsilä is constructing a 50 MW / 100 MWh battery energy storage system for Gramme Storage 1 in central-eastern Belgium, with completion expected by Q2 2027. This project supports Belgium's transition to a sustainable energy system and is part of the Capacity Remuneration Mechanism, ensuring energy supply security and grid resilience.
Wärtsilä will utilize its GridSolveTM Quantum2 system and GEMS software for this project, which is part of a broader energy storage portfolio exceeding 2.7 GWh in Europe. The order was finalized in Q2 2025.




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