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Solar air conditioners to chill California utility | Green Tech - CNET News
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Solar air conditioners to chill California utility
Southern California Gas company is testing how well the sun can cool buildings.
The Los Angeles-based utility said on Tuesday that it has chosen two solar concentrators to measure how effective they are at cooling. 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. That heated water is used in place of gas or electricity to power an industrial absorption chiller, which creates cold air using a heat exchanger and compressor.
Using the sun for cooling has ...
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