Ormat's main products line consists of ORMAT® ENERGY CONVERTERS (OEC) in various versions, configurations and sizes.
For geothermal heat sources, the OEC either on its own or in combination with a steam turbine is applicable to the full range of geothermal conditions: from high pressure steam to low temperature water. The OEC operation follows the organic Rankine cycle (ORC). An Organic Rankine Cycle is a thermodynamic process where heat is added to a fluid at a constant pressure, the fluid is vaporized and then expanded in a vapor turbine, which drives a generator, producing electricity. The spent vapor flows to a condenser where it is condensed to liquid and recycled back. In a conventional steam plant, the fluid is water steam; in the Organic Rankine Cycle an organic fluid is used. Over the years, Ormat has developed many innovative systems to maximize the energy production from a variety of heat sources using OECs only, or in combinations with steam turbines. As of March 09, Ormat has been granted more than 75 U.S. patents for proprietary power technologies and has applied for more than additional 14, currently pending. | 
