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Jacquelyn Martin, Associated Press
ADVANCE FOR MONDAY, DEC. 19 AND THEREAFTER - Part of the Potomac River Generating Station is seen in Alexandria, Va., Friday, Dec. 16, 2011. More than 32 mostly coal-fired power plants in a dozen states will be forced to shut down and another 34 might have to close because of new federal air pollution regulations, according to an Associated Press survey. Together, those plants produce enough electricity for more than 21 million households, but their demise is unlikely to cause homes to go dark.

An Associated Press analysis has found more than 32 mostly coal-fired power plants in a dozen states will be forced to close — and others are at risk — because of new federal air pollution regulations taking effect in 2014-2015.

And the impact is greatest in the Midwest and coal belt states such as Virginia and West Virginia, where dozens of units are likely to shut down.

Take the coal-fired plant in Glen Lyn, Va., operating for more than 90 years. It has generated nearly a quarter of the revenue in the town's $1 million budget and 44 jobs will be lost.

The Environmental Protection Agency has estimated 14.7 gigawatts — enough power for more than 11 million households — will be retired under new rules though no lights will go dark.