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Spray-on film turns glass into solar panels
"One of the key advantages is that it is a transparent thin film that can be coated onto window glass so that windows in buildings can also become power generators,”
If the very idea of a spray-on film that can turn windows into solar collectors sounds too good to be true, think again.
After all, Japan's University of Tokyo did come up with a Wi-Fi-blocking paint, while a number of companies including Konarka have developed solar cells that sit within the window.
Pushing the envelope on solar panel technology is Norwegian company EnSol, which has patented a prototype thin film solar cell technology designed to be sprayed onto any glass surface. In fact, plans are afoot for a thicker solution to coat exterior walls or be used in the form of "clip-together" solar roof tiles.