Fuel cell power source management device and fuel cell power source management method

A fuel cell power-source management method executed by a computer for managing a fuel cell power-source having a liquid hydrogen tank and a recovery device for boil-off gas generated in the liquid hydrogen tank, the fuel cell power-source management method characterized by comprising:

• a use information acquisition step that acquires boil-off gas use information, the boil-off gas use information being information on profit to be obtained when the boil-off gas is used for each of a plurality of uses of the boil-off gas recovered by the recovery device, the information on profit including:
• information on profit to be obtained by supplying the boil-off gas to the fuel cell to generate power or information on reduction of usage cost for using the fuel cell power-source by using the boil-off gas;
• and information on profit to be obtained by providing the boil-off gas to an outside;
• and
• a priority determination step that determines, based on the boil-off gas use information, priority between a use of supplying the boil-off gas recovered by the recovery device to the fuel cell to generate power and a use of supplying the boil-off gas recovered by the recovery device to an outside.