Patent ID: 7669418

Claim:
A heat energy supply system for supplying a heat medium to a heat utilization facility, the system comprising: a boiler for heating the heat medium; a heat pump including a steam turbine driven by steam obtained by heating the heat medium in said boiler, a heat exchanger for heating the heat medium by employing waste heat or heat obtained from environment, thereby producing the steam at a setting temperature, and a compressor for compressing the steam produced by said heat exchanger, said compressor being coaxially coupled with said steam turbine; and a steam supply line for supplying the steam discharged from said steam turbine and the steam produced by said heat exchanger to said heat utilization facility, and wherein the motive power for driving the heat pump is provided by energy produced when the heat medium in a state of super heat steam at the setting pressure from the boiler is depressurized by the steam turbine to a pressure suitable for use in the heat utilization facility.