VACAVILLE, Calif.–(BUSINESS WIRE)–Today, the City of Vacaville held a “Flip the Switch” ceremony to celebrate the energization of a new 5-megawatt DC (MW DC) solar and battery energy storage system at the City of Vacaville’s Easterly Wastewater Treatment Plant (EWWTP), marking a major milestone in Vacaville’s commitment to sustainability, operational resilience, and long-term cost savings. Developed in partnership with ForeFront Power, the project advances Vacaville’s sustainability strategy