Faced with cutting sulfur dioxide pollution blowing into downwind states by 80 percent in less than a year, lawyers for EME Homer City Generation L.P. sued the Environmental Protection Agency to block the rule, saying it would cause it grave harm and bring a painful spike in electricity bills.
None of those dire predictions came to pass.
Instead, the massive western Pennsylvania power plant is expected in a few years to turn from one of the worst polluters in the country to a model for how coal-fired power plants can slash pollution.
The story of the Homer City plant reflects the precarious position of older coal-fired plants these days, squeezed between cheap and plentiful natural gas and a string of environmental rules the Obama administration has targeted at coal, which supplies about 40 percent of the nation's electricity. The latest regulation, the first proposal to curb earth-warming carbon dioxide from power plants, is due next week. It will pose yet another challenge to coal-fired power plants. Dozens of coal-fueled units have already announced they would close in the face of new rules.