USA to reduce its dependence on coal fired electricity generation
Coal is 39% (2013) of the US electricity generation

The EPA announcement on existing power plants came shortly after the Energy Information Administration projected that low natural gas prices and slower electricity demand would accelerate the pace of coal-fired electric plant retirements. The agency said a total of 60 gigawatts of capacity would retire by 2020, with the bulk of that coming by 2016. In 2012, there were 1,308 coal-fired generating units in the U.S., with 310 gigawatts of capacity, and in that year alone 10.2 gigawatts was retired.

http://thinkprogress.org/climate/2014/12/09/3598906/terrible-year-for-coal/