This article provides a detailed, technical overview of these cabinets, including design principles, fireproofing measures, electrical integration, ventilation, and compliance with industry standards. Lithium-ion batteries store large amounts of energy in compact cells. . Bidirectional electric vehicles (EV) employed as mobile battery storage can add resilience benefits and demand-response capabilities to a site's building infrastructure. A bidirectional EV can receive energy (charge) from electric vehicle supply equipment (EVSE) and provide energy to an external. . This Guide is provided to aid interconnection customers with the Pacific Gas and Electric Company (PG&E) interconnection process for energy storage devices applying under PG&E's Electric Rule 21. Its goal is to provide clarity and set expectations for how PG&E implements the applicable Electric. . This article presents a system comprising a solar photovoltaic (PV) array, a battery energy storage (BES), a diesel generator (DG) set, and a grid-based electric vehicle (EV) charging station (CS) for continuous charging in islanded, grid-connected, and DG set connected modes. An EMS needs to be able to accommodate a variety of use cases and regulatory environments.