A CHP system (100) is provided with a combustor (14) (a heat source), a Rankine cycle device (20) and a second heat exchanger (42). The Rankine cycle device (20) has an evaporator (24) as a first heat exchanger which absorbs thermal energy generated in the combustor (14). The second heat exchanger (42) is arranged in a position farther from the combustor (14) than from the evaporator (24), contacts the evaporator (24) directly or indirectly via a thermally conductive member, and absorbs thermal energy generated in the combustor (14) and transmits said energy to a heat medium.
