A power supply equipment provided for each of parking slots is configured to be able to be stored under a ground, and is configured to supply power to a vehicle parked in a corresponding parking slot with the power supply equipment protruding from the ground. A server that manages each of the parking slots and the power supply equipment is configured to receive a reservation request that specifies a reservation start time of the parking slot. The server is configured to reserve, from a vacant slot, out of the parking slots, that is unreserved at the reservation start time, a parking slot with a neighboring parking slot on at least one side unreserved at the reservation start time with priority over a parking slot with neighboring parking slots on both sides reserved at the reservation start time, when the server receives the reservation request.