Who is Infinia?
Infinia is a privately held company that designs and develops free-piston Stirling engine systems for converting heat into electricity in renewable and distributed power applications.
- Free-piston Stirling engine design for heat-to-electricity conversion
- Distributed and combined heat and power generation systems
- Solar thermal and geothermal heat source integration
- Renewable electricity generation for utility and commercial settings
- Power conditioning, control electronics, and system integration engineering
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More About Infinia
Infinia's systems are positioned for organizations that need on-site power generation from heat sources, including industrial facilities, remote sites, and utilities pursuing renewable generation portfolios. Deployments are typically evaluated on thermal input, electrical output, and integration with existing plant or grid infrastructure.
Free-piston Stirling engines use a hermetically sealed working gas, a linear alternator, and flexure or gas bearings in place of a crankshaft. This configuration reduces mechanical wear and lubrication requirements. Control electronics manage piston dynamics and grid synchronization through power conditioning equipment, which allows the system to deliver usable electrical output from external heat input.
Stirling systems compete in a solution category alongside organic Rankine cycle units, microturbines, and reciprocating gas engines used for distributed generation. Stirling engines are distinguished by external heat input, which provides flexibility across heat sources, and by quiet, low-emission operation. Relative efficiency and cost depend on the specific application and heat source.
The company's offerings are significant for improving thermal-to-electric conversion and for expanding distributed renewable capacity. Within renewable electricity, its activity is framed around heat engine technology, power generation hardware, and associated system integration services. Current deployments, commercial terms, and project performance details should be verified directly with the organization.
Our description of Infinia. Updated October 2026.
