Abstract: A cogeneration system includes at least one generating device which generates electric power and produces heat, and a power supply mechanism which supplies electric power generated by the at least one generating device to an air-conditioning system and a general power source. A cogeneration system may also include at least one generating device which generates electric power and produces heat, and at least one heat recovery mechanism which distributes heat produced by the at least one generating device to at least one air-conditioning device. A central controller of a cogeneration system, including a plurality of generating devices which generate electric power and produce heat, controls operations of the generating devices based on operations of a plurality of indoor units of an air-conditioning system and operations of heat consuming equipment.