Vehicle-to-Grid: Fuel and Energy Bills for Free

With V2G, the electric vehicles (EVs) that are connected to a charging station can support the network by transferring active and/or reactive power back to the power grid, becoming, in this way, small mobile batteries. The increased penetration of EVs into the distribution system creates a power system with many small moving batteries. The grid can use these batteries to compensate for the fluctuations and stabilize the grid during faults. When there is a shortage of power in the grid, the EV will discharge its energy to the grid; and when there is a surplus of generation, the EV battery will charge