Bitzer entered the waste-heat-to-power market by acquiring Reno, Nev.-based ElectraTherm, which generates power from low temperature waste heat using organic rankine cycle (ORC) and patented technology.

ElectraTherm’s Power+ Generator utilizes waste heat on applications such as biomass boilers, flare gas at oil and gas wells, wastewater treatment plants and landfills, internal combustion engines and geothermal/co-produced fluids. It uses ORC technology to capture waste heat and convert it to clean electricity. The waste heat is used to produce a high pressure vapor that expands through ElectraTherm’s twin screw power block, spinning an electric generator to produce fuel- and emission-free power to be consumed on site or exported to the grid. After turning the expander, the vapor is condensed back into liquid through a liquid loop radiator.