According to Harris and Johnson's analysis, energy-efficient purchasing in state and local agencies could save 49 trillion BTU per year, or 3. . Purchasing efficient products reduces energy costs without compromising quality for corporations, institutions, and governments. Specify ENERGY STAR products. . This 100kw/215kwh solar battery storage system is loaded withenergy storage batteries, PCS, photovoltaic controller (MPPT) (optional), BMS management system, EMS management system, power distribution system, environmental control system and fire control system to fully control the system operating. . Sunway 100kW/215kWh Energy Storage System is designed for businesses and utilities looking for a safe, intelligent, and efficient way to store and manage energy. With a modular PCS design and front-access outdoor cabinet, it enables reliable power supply, fast deployment, and easy expansion in both. . In theory, the federal government could save up to 42 trillion BTU of energy (or $620 million) each year, if all federal agencies would immediately start buying only the most energy-efficient products. A more realistic scenario shows federal savings of about $220 million/year at the end of ten. . The system consists of one set of 215kwh battery unit, one set of 100kw PCS with liquid cooling system and gas fire protection system, which improves product efficiency and working stability. However, large-scale purchases also come with risks if buyers overlook crucial technical details.