Penn State's tubular solar PV
Many of the homes in the Solar Decathlon used relatively new green technologies, including the one from Team Pennsylvania. It used unique solar panels from California start-up Solyndra, seen on the roof and awning. These panels are a series of tubes made from thin-film solar cells. The solar cell material--a combination of copper, indium, gallium, and selenide (CIGS)--and the shape allows the collectors to capture light from different angles and produce electricity in diffuse light. Under the panels is a green roof of plantings, which aid building insulation and reduce heat to help panel production. On the front wall are flat solar thermal panels (in black) for making hot water.
October 10, 2009 8:27 AM PDT
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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