New York Times 9 January 2013
Just a few years ago, Silicon Valley investors were pouring money into solar technologies and talking about how they would bring the same kind of innovation to green energy that they had to the computer chip. But few anticipated that prices for silicon, the main component of traditional solar panels, would plummet or that Chinese manufacturers, backed by enormous subsidies from their government, would increase solar production capacity by a factor of 17 in just four years.
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