Cool Energy, Inc. believes it has an engine designed for home use that can convert low-temperature solar energy into sustainable electricity, and also saving up to 75% on heating oil or propane.
The SolarHeart engine is based on the legendary Stirling engine design, which harkens back to the early 19th century. Stirling engines run on changes in the pressure of hydrogen as it is alternately heated and cooled in a sealed chamber, which drives a piston.
Cool Energy plans to integrate the SolarHeart engine into a complete solar energy system built into individual homes and other buildings. If SolarHeart lives up to its promise, we could all be just a heartbeat away from off-grid living.