Herald Sun
Tuesday 22/9/2009 Page: 24
THE price of installing roof-top solar energy could plummet with two new developments - spray-on solar cells, and solar tiles. The spray-on cells will go on the market in the next couple of years. They are the result of a new silicon ink that absorbs and stores the sun's energy and can be spray-painted onto roofs, glass and the sides of buildings. The money-saving technology has been developed by chemical engineers at the University of Texas.
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