Some of the key features of Flex turbines include best-in-class fuel tolerance, lowest NOX emissions, and reliability. The turbines provide high energy efficiency, up to 85%, in a compact package for grid-connected CHP projects. The company uses its patented combustion and recuperation technology and its turbines have been certified by the California Air Resources Board to its stringent distributed generation natural gas cogeneration standards since 2007. In July 2016, the company launched a new integrated exhaust heat recovery module for its GT333S micro turbine-powered electric generators.