Water-cooled energy storage systems encompass a variety of technologies that utilize water as a storage medium. These units typically employ large water bodies or tanks to capture thermal energy, 3. The technology serves to balance supply and demand in energy systems, aiding renewable energy integration. . Thermal Energy Storage (TES) for chilled water systems can be found in commercial buildings, industrial facilities and in central energy plants that typically serve multiple buildings such as college campuses or medical centers (Fig 1 below). TES systems are used in commercial buildings, industrial processes, and district energy installations to deliver stored thermal energy during. . Universally recognized and accepted, Thermal Energy Storage (TES) has enabled facilities requiring chilled water-cooling to significantly decrease costs while maintaining desired service levels. Chilled water or ice is produced during off-peak hours and stored in an insulated tank. As renewable energy projects grow bigger than Texas steaks (we're talking 100MW+ systems), these liquid-cooled solutions are becoming the VIPs. .