A power generating system includes: a plurality of cells forming a fuel cell battery for generating power; a cell temperature measuring unit provided for each cell; a thermoelectric converter provided for each cell; a heating unit which heats the plurality of cells; a first control unit which controls the heating unit; and a second control unit, provided for each thermoelectric converter, for controlling the thermoelectric converter, wherein the first control unit controls the heating unit so as to bring the temperature of the heating unit to within a predetermined control temperature range, and the second control unit performs control so that if the temperature of the cell lies outside a predetermined operating temperature range, the thermoelectric converter is switched to the thermal transfer mode and is controlled so as to bring the temperature of the cell to within the predetermined operating temperature range, and if the temperature of the cell lies within the predetermined operating temperature range, the thermoelectric converter is switched to the power generation mode.