Cool Energy, Inc.

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Cool Energy Inc is a company located in Boulder, Colorado. Cool Energy Inc uses the SolarFlow System, a combination of the SolarHeart Engine and SolarSmart Controller. The SolarHeart Engine incorporates Stirling engine technology, solar thermal collectors, thermal storage, and a hot water and space heater. The SolarSmart Controller is a powerful controller that gets the highest value of energy from the SolarFlow system [2].


  1. Cool Energy Inc
  2. About SolarFlow