An HEMS 500 that performs a power management in a consumer 1 that includes one or more loads 40 that consume power and an SOFC unit 100 that performs a load following operation calculates, for each time zone, predicted power consumption, and thereafter, displays information indicating an exceeding time zone in which the predicted power consumption in the consumer exceeds a first threshold value of the SOFC unit 100 and information indicating a non-exceeding time zone in which the predicted power consumption falls short of a second threshold value.