Patent ID: 8378627

Claim:
An electric supply controller for controlling a switching circuit to connect an electric power supply line to one charger selected from a plurality of chargers, the plurality of chargers being connectable with a plurality of vehicles, the electric supply controller comprising: a storage unit configured to associate information on a priority to a vehicle ID of each of at least part of the plurality of vehicles and configured to store the associated information therein; a vehicle ID receiving unit configured to receive a vehicle ID from each of at least part of the plurality of vehicles connected to one of the plurality of chargers; and a control unit configured to control the switching circuit, when at least part of the plurality of vehicles are simultaneously connected to different chargers, to determine a priority associated with the vehicle ID that is received, so as to connect the electric power supply line preferentially to one of the different chargers based on the vehicle ID assigned with a highest priority among a plurality of vehicle IDs received from the at least part of the plurality of vehicles respectively, the one of the different chargers being connected to one of the plurality of vehicles, which is assigned with the vehicle ID associated with the highest priority.