Image：NHOA ENERGY

On May 15, the 400MWh battery energy storage system (BESS) project in Kallo, Belgium commenced construction in the presence of government and corporate representatives.

Developed collaboratively by NHOA Energy and ENGIE, the project was awarded under Belgium's Capacity Remuneration Mechanism (CRM), a policy initiative addressing power supply gaps following nuclear plant retirements.

ENGIE secured the contract through its energy storage proposal in Belgium's fourth CRM auction, with NHOA Energy acting as technical partner responsible for full-system design, delivery, and long-term operations.

Scheduled for commissioning in spring 2027, the BESS will provide four hours of backup power for 48,000 households during peak demand while enhancing grid integration of variable renewable energy sources like wind and solar.

The Kallo site, once a key natural gas power hub, is being repurposed amid Europe's energy transition. By leveraging existing grid infrastructure, the partners aim to minimize network upgrade costs and mitigate environmental concerns associated with new energy facility construction.

This strategic reuse of legacy energy assets exemplifies Belgium's shift toward sustainable power solutions.