Since 2007, Duke Energy has invested more than $2.5 billion to build wind and solar farms across the U.S. – http://bit.ly/Ayyfns

By on February 24, 2012 at 10:15 AM

Since 2007, Duke Energy has invested more than $2.5 billion to build wind and solar farms across the U.S. – http://bit.ly/Ayyfns DukeEnergy

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