CONTROL DEVICE AND POWER CONTROL METHOD

A control apparatus comprises: a first control unit that controls power generation of a fuel cell to follow power consumption of a load; a second control unit that controls a power supplying device to supply a second power to the load in accordance with an increased amount of the power consumption when the increased amount of the power consumption is equal to or more than an increased amount that can be followed by the fuel cell; and a power detection unit detecting the second power. The first control unit increases the amount of the first power when the second power is detected, to decrease the amount of the second power.