[Wired] - Silicon Shortage Stalls Solar

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The solar energy industry is growing and tech improvements promise to reduce its cost, but challenges loom. A dearth of silicon for photovoltaic cells and anemic government support impede what could be gangbuster growth. By John Gartner.

http://www.wired.com/news/planet/0,2782,67013,00.html?tw=rss.TEK