S4 Energy BV, a Dutch grid-scale energy storage developer and operator and <a href="https://renewablesnow.com/news/energy-trader-cci-invests-in-dutch-storage-specialist-s4-energy-810623/" target="_blank">a subsidiary of</a> global merchant firm Castleton Commodities International (CCI), has agreed to acquire a 310-MW portfolio of shovel-ready and advanced battery energy storage system (BESS) projects in Germany.