Patent ID: 8288047

Claim:
A fuel cell system comprising: a fuel cell configured to generate electric power using reactant gas supplied to the fuel cell; a current receiver configured to receive electric current generated by the fuel cell; and a controller programmed to provide: an idle stop unit configured to stop a supply of the reactant gas to the fuel cell when a predetermined condition is established; a discharger configured to allow the fuel cell to generate the electric power with the reactant gas remaining in the fuel cell after the idle stop unit stops the supply of the reactant gas, the discharger being configured to discharge electric current to the current receiver; a power-generation-state memory configured to store at least one of a current value and a voltage value of the fuel cell immediately before the idle stop unit stops the supply of the reactant gas; and an initial-current-value setter configured to set an initial current value of the fuel cell discharged by the discharger on a basis of the at least one of the current value and the voltage value of the fuel cell stored in the power-generation-state memory.