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11 clean tech innovations that can change the world

By: Bryan Nelson on April 5, 2010, 10:23 a.m.
Clean tech innovations: Spray-on solar panels

Photo: University of Texas at Austin

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Spray-on solar panels

New Energy Technologies has developed transparent solar cells which can be sprayed onto any glass surface like paint. Light-absorbing nanomaterials that are 10,000 times thinner than a strand of hair make this unfathomable technology possible, and since they are transparent, they can be applied to almost any surface. With such easy installation, this technology could greatly improve the high cost of going solar.