Solar for Dark Climates

Cool Energy
Cool Energy low temp solar Stirling engine.
A Kurzweil AI post describes progress in solar technology from Cool Energy, Inc.

“In cool months, the solar heater provides hot water and space heating. In warmer months, excess heat is used to drive the Stirling engine and generate electricity.”

Kurzweil also linked to this Technology Review article about the Colorado based company developing a low temperature Stirling generator that adds power during the summer to the solar heating done during the winter.

“Ordinarily, the engines require temperatures of above 500 °C, but Cool Energy’s engine is designed to run at the 200 degrees that solar water heaters provide.”

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