Infinity Turbine was started in 2008. Infinity has experimented with just about every type of pressure expander, focussing on those below 500 kW in output size, and more on the smaller end of the spectrum (less cost to experiment and develop).
What We’ve Learned: If your expander has more than one moving part, it will break. This is a lesson learned, and capitalized on by Capstone Turbine. Beyond that, even having one moving part, will break. That is why we have ultimately focussed on tribo-effect, and a solid-state turbine using phase change Rankine technology. Another technology (with low efficiency) is the TEC Thermo Electric Coolers or Thermoelectric Device, or Peltier effect, which can produce electricity from heat.