Qnergy external combustion engine can be driven by waste. A material that otherwise might have polluted land is now utilized to create clean energy.

A long life self contained engine ensures lasting maintainance free operation

Converts and uses otherwise wasted energy into your home or business to generate electricity and hot water for an overall efficiency of >90%

A simple and intuitive interface allows user intervention. Operation is adjusted by a closed loop controller that continuously optimizes the engine performance.

The tuned resonant dynamics of the engine ensure inherently quiet operation.


Qnergy has acquired the assets of US-based Infinia Corporation Inc. located in Ogden, Utah. Infinia Corporation has specialized in the design and manufacturing of free piston Stirling generators. Qnergy plans to integrate the core technologies of both companies in order to commence mass production of Stirling engines for various applications.

Largest commercially available free piston Stirling Cycle engine (7.5Kw electricity output), highly reliable with zero maintenance, very low noise and competitive price.

Qnergy’s state-of-the-art co-generation engine lays the foundation for ultra-high efficiencies in power generation while preserving the environment.