What is a Stirling Engine? A Stirling engine uses an external heat source to heat an internal working gas. The heating and cooling of the working gas is converted to mechanical energy, that is then converted to electrical energy via a magnet/stator assembly.


Stirling engines are incredibly reliable due to the sealed internals and free piston design. System exceeds 50,000 hours between maintenance cycles.


The Stirling engine has a compact design that can be installed in a small, easy to transport enclosure, safe for standard road way transportation.

Fuel Options

The Microgen Stirling engine accepts a wide range of acceptable fuels:

  • Sweet Natural Gas

  • Sour Gas – up to 50% sour

  • Ethane

  • Propane

  • Hydrogen

  • Low-Btu mixed fuels

Power Output

Output Power: 1 – 6kW

Multiple engines are commonly run in parallel

Engine Footprint

The Microgen Stirling Engine’s small footprint allows for easy integration into any tight space. Minimal vibrations makes that even easier.