The project employs 320 units of Sungrow's PowerTitan liquid-cooled battery storage systems. Upon completion of the second 400MWh phase by the end of 2025, the entire installation will be providing clean, stable power for about 96,000 homes and helping stabilize Belgium's power grid. . The Terhills Battery Energy Storage System (BESS) represents a major advancement in energy storage technology. Developed by the multinational energy company Eneco, the facility was a pioneering project in Europe, initially boasting a capacity of 100 MW and 200 MWh—enough to store and deliver power. . The storage project with an end capacity of 200 MW/800 MWh uses 320 units of Sungrow's liquid-cooled ESS PowerTitan. The second and final phase of the Vilvoorde project is set to connect to the grid by late 2025. This two-phase development is aimed at enhancing grid stability and, once completed. . As of November 22 2025, both phases of the largest battery storage system in Europe have been completed and with the second phase awaiting commissioning. The company is also building other large-scale BESS systems in Belgium. For instance, a Kallo site has plans for 100 MW / 400 MWh. Meanwhile, a. . Green Turtle battery park, among the largest in continental Europe, will feed 700 MW of renewable energy back to the grid. Tractebel is Owner's Engineer on this landmark project. An example of such an investment is the newly commissioned Vilvoorde Battery Energy Storage System in Belgium, currently the largest of its kind in. . Project owners BSTOR and Energy Solutions Group have started building separate BESS projects totalling 440MWh of capacity in Belgium, following financial close, both of which will use Tesla Megapacks. Belgium is one of the most active and mature grid-scale energy storage markets in Europe, with. .
