Project: US Solar Roads – driving on glass?
U.S. roads paved with glass panels encasing photovoltaics and LEDs would double as a national power grid
Excerpt - There are about 260,000 kilometers of roadway in the U.S. National Highway System alone, and thousands more in state highways, suburban thoroughfares and rural roads. Could all that asphalt be replaced with a solar technology that would also double as the nation’s power grid?
The key to making this work will be the glass: The solar road panel prototype is 1,024 modules—each containing a solar cell, a light-emitting diode and, someday, an ultracapacitor for storage—sandwiched between a layer of some yet-to-be developed glass and a layer of conducting material. “Nobody’s tried to drive on glass long-term”…
In addition to needing strength, this glass will be textured to allow tires to grip and water to run off. It will also be embedded with heating elements—like a car’s rear windshield—to melt snow or ice. And it will need to be self-cleaning, coping with the grit and grime of an endless procession of tires as well as dust, dirt and other highway detritus. Needless to say, such glass does not exist yet but Brusaw hopes to partner with researchers at The Pennsylvania State University’s Materials Research Institute to develop it… Read more by David Biello, Scientific American
Supplementary: Global Investments into Solar Energy
haplif – Frank Kalder (Global Haplifnet)