Using sun for cooling your home can be an excellent application for solar energy.
Southern California Gas Company is now testing on how well we can use sun to cool buildings.
They have chosen two solar concentrators for measuring the effectiveness of a solar air conditioner in cooling buildings. The units will be installed on the roof of its Energy Resource Center (ERC) in Downey, Calif.
Both products–one from Hawaiian start-up Sopogy and another from HelioDynamics in the U.K.–reflect and concentrate incoming sunlight onto a pipe to heat water. The heated water will be used in place of electricity or gas to power an industrial absorption chiller that creates cold air using a compressor or heart exchanger.
Read full story at CNET
