Fuel cell power-supply management device and fuel cell power-supply management method

A fuel cell power-supply management method executed by a computer for managing a fuel cell power-supply having a liquid hydrogen tank and a boil-off gas accumulation unit for accumulating boil-off gas generated in the liquid hydrogen tank, the fuel cell power-supply management method comprising:

• a boil-off gas accumulation amount recognition step that recognizes an accumulation amount of boil-off gas in the boil-off gas accumulation unit;
• a demand status recognition step that recognizes a demand status for each use of the boil-off gas;
• a boil-off gas recovery timing determination step that determines a recovery timing of the boil-off gas accumulated in the boil-off gas accumulation unit, based on an accumulation amount of the boil-off gas or a demand status of the boil-off gas, the accumulation amount being recognized by the boil-off gas accumulation amount recognition step, the demand status being recognized by the demand status recognition step;
• and
• a boil-off gas utilization processing arrangement step that arranges utilization processing of the boil-off gas recovered from the boil-off gas accumulation unit at the recovery timing.