15 Aug '11, 9pm

Rooftop solar panels can do more than produce electricity, researchers say--they can reduce cooling and heating costs

UPI--Solar panels on the roofs of houses and office buildings can do more than produce electricity, researchers say--they can reduce cooling and heating costs. A professor of environmental engineering at the University of California, San Diego, says he found using thermal imaging that a building's ceiling could be 5 degrees Fahrenheit cooler during the day under solar panels that under an exposed roof. At night, the panels help hold heat in, reducing heating costs in the winter. "Talk about positive side-effects," Professor Jan Kleissl said. Kleissl said his study found the amount saved on cooling the building amounted to getting a 5 percent discount on the solar panels' price over the panels' lifetime, a UCSD release reported. The panels essentially act as roof shades, researchers said. Rather than the sun beating down onto the roof and pushing heat through the roof and i...

Full article: http://www.ecohomemagazine.com/news/2011/08-august/solar-...

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