Vehicle-to-Grid (V2G) is a technology that allows electric vehicles (EVs) to communicate with the power grid. When EVs are parked and plugged in, they can send stored energy back to the grid during peak demand times. This helps balance energy supply and demand, making the grid more efficient. In addition to supporting the grid, V2G can benefit EV owners financially. By selling excess energy back to the grid, drivers can earn money or receive credits on their electricity bills. This system promotes the use of renewable energy sources and enhances overall energy sustainability.