NOVELTY - System (I) comprises a generator configured to receive a flow of an organic working fluid. The generator comprises: a stator; a permanent magnet rotor (132) configured to rotate within the stator to generate electricity; and at least one component disposed within the generator and configured to be exposed to the flow of the organic working fluid, where each component comprises an underlying component and an encapsulant configured to withstand exposure to the organic working fluid to inhibit contact between the underlying component and the organic working fluid.    USE - The system is useful: for recovering waste heat from hot exhaust gases produced by a gas turbine engine, micro-turbine, reciprocating engine, geothermal, solar thermal, industrial, chemical or petrochemical processing or residential heat source; and to convert waste heat into electricity.    ADVANTAGE - The system utilizes nonpolar organic solvents as working fluids for recovering waste heat in the organic Rankine cycle systems without degrading components of the integrated power modules.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) a system (II) comprising a unitary casing, a turbine (30) disposed in the unitary casing and configured to expand an organic working fluid, the generator disposed in the unitary casing and configured to receive a flow of the organic working fluid exiting the turbine, where the generator comprises the stator comprising an electrical winding end turn encapsulated by the encapsulant configured to withstand exposure to the organic working fluid to inhibit contact between the electrical winding end turn and the organic working fluid, and the permanent magnet rotor configured to rotate within the stator to generate electricity; and    (2) manufacturing method for encapsulating an integrated power module component comprising disposing a component of the generator within a mold and injecting the encapsulant into the mold to encapsulate the component.    DESCRIPTION OF DRAWING(S) - The figure shows an integrated power module employed in waste heat recovery systems.    Integrated module (24)    Turbine (30)    Radial magnetic bearing (128)    Permanent magnet rotor (132)    Sensor assembly (141)