A vehicle or stationary power plant having an internal combustion engine as a drive source and having components adapted to be supplied with heat from a medium accommodated in a closed loop The turbine of the exhaust gas turbocharger provided for turbocharging the internal combustion engine acts as a heat source. A heat exchanger is disposed externally on the turbine housing and can be incorporated or switchable into the medium loop The medium can be conveyed directly or channeled through the interior of the heat exchanger, and the medium is adapted to be heated up in such interior utilizing at least thermal radiation energy from the hot turbine housing.