Sun Roof: Solar Panel Shingles Come Down in Price, Gain in Popularity
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Flickr/Tai Viinikka Solar shingles are photovoltaic cells designed to look like and integrate with conventional asphalt roof shingles. First commercially available in 2005, solar shingles were much more costly than traditional “bolt-on” photovoltaic panels… #solarshingles #stateincentives