Solar power capital cost has crashed

The Economist (TheEconomist):
#Dailychart: Today's chart shows the change in the price of cells used to generate solar power over time http://econ.st/10sgliQ

#Dailychart: Today's chart shows the change in the price of cells used to generate solar power over time econ.st/10sgliQ

— The Economist (@TheEconomist) December 28, 2012

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