‘Solar’ is cheaper and cheaper

Via Uncommon wisdom daily comes this chart from Bloomberg:

Current estimates suggest that solar might be as cheap as coal by the end of the decade, and half the cost of coal by the end of the next decade. When applied to electricity prices this predicts that solar generated electricity in the US will descend to a level of 12 cents (7 pence) per kilowatt hour by 2020, possibly even 2015 for the sunniest parts of America. 

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