Unlike unidirectional charging, bidirectional charging allows electricity to flow both ways—meaning energy can be passed back and forth between an electric vehicle, a house, and the grid. This allows the vehicle to act as a mobile energy storage system, capable of powering electrical. . 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. . Superior Backup Power Economics: Bidirectional EV systems provide 3-7 days of home backup power at $5,000-$12,000 total cost, significantly undercutting traditional generators ($8,000-$15,000) and dedicated battery systems ($15,000-$25,000) while serving dual transportation and energy storage. . Bidirectional charging allows an electric vehicle to both charge its battery from the electrical grid and discharge energy back to the grid or another electrical system. Why trust EnergySage? As subject matter experts, we provide only objective information. We design every article to provide you with deeply-researched, factual, useful information. . This capability, known as Vehicle-to-Grid (V2G) technology, has the potential to transform EVs into dynamic energy storage solutions, enhancing the stability and efficiency of power grids.