NPR graphic on reinventing the U.S. electric grid

The U.S. electric grid is a complex network of independently owned and operated power plants and transmission lines. Aging infrastructure, combined with a rise in domestic electricity consumption, has forced experts to critically examine the status and health of the nation’s electrical systems.  See the interactive graphic prepared by NPR at: http://www.npr.org/news/graphics/2009/apr/electric-grid/

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