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Wärtsilä Starts Building 50 MW Battery Storage to Steady Belgium’s Grid

The Gramme 1 system will participate in Belgium’s CRM to provide ancillary services for a more renewable grid.

Overview

  • Construction is underway in central‑eastern Belgium, with completion targeted for Q2 2027.
  • The project is Wärtsilä’s first Belgian storage asset participating in the Capacity Remuneration Mechanism to provide frequency and voltage support.
  • The 50 MW/100 MWh system will deploy Wärtsilä’s GridSolve Quantum 2 hardware managed by its GEMS optimization software.
  • Wärtsilä will supply under an engineered equipment delivery contract paired with a long‑term service agreement that guarantees performance.
  • Including Gramme 1, Wärtsilä says its European energy‑storage portfolio now exceeds 2.7 GWh.