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Building affordable solar water heaters

cnn.com — In spring 2007, University of California Berkeley Energy and Resources Group professor Ashok Gadgil challenged students in his Design for Sustainable Communities class to come up with an affordable and efficient solar water heater that could be used in low-income households.

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  • RandomTidbits, on 08/04/2008, -0/+1aweeessssoommmmeeeee =)

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