Abstract: A power generation system includes an Organic Rankine Cycle (ORC) electric generator thermally coupled to a stack of industrial heat pumps (IHPs). The ORC requires heat to generate electricity. The IHPs require electricity to generate heat. The IHPs have an efficiency much greater than 100% because some of the output heat from an IHP is pre-existing heat extracted from available source water, The temperature of the source water can be as low as 70° F. By configuring the IHPs to maximize their efficiency, the electricity required to operate the IHPs can be reduced below the output electricity from the ORC. The surplus electricity produced by the ORC is available for export. This coupled ORC/Heat Pump system is an electric generator that requires no fuel to operate and produces no emissions. The required energy is provided by the heat extracted from the source water by the IHPs.

Abstract: A system for pre-heating boiler feedwater and cooling condenser water includes a boiler, a turbine, a turbine condenser, a heat pump, a first heat exchanger, a second heat exchanger, and an expansion valve. A water stream is heated by the boiler into a high pressure steam. The high pressure steam passes through the turbine and into the turbine condenser, converting the steam into condensate. The condensate is passed through a heat receiving side of the first heat exchanger. A refrigerant stream is pressurized by the heat pump and is thereby heated. The refrigerant stream passes through a heat dissipating side of the first heat exchanger, heating the condensate. The refrigerant stream is then depressurized and cooled, and passes through a heat receiving side of the second heat exchanger. A condenser water stream passes through a heat dissipating side of the second heat exchanger, cooling and entering the turbine condenser.