AEP agreed Tuesday to spend $4.6 billion to install pollution controls on 16 power plants.
A utility's dramatic agreement this week to trim smokestack pollution may do more than help clear the nation's skies. It may clear the legal logjam that has kept other large utilities from cutting similar deals that could trigger reductions in harmful power-plant emissions.
By one estimate, US power plants could cut their emissions of pollutants linked to acid rain and smog by 20 percent.
The agreement, announced Tuesday by the US Environmental Protection Agency (EPA), sends a powerful, though not necessarily decisive, signal to other utilities, legal analysts say.
In settling an EPA lawsuit, the nation's largest utility, American Electric Power, agreed to spend $4.6 billion to reduce its emissions of sulfur dioxide (SO2) by 79 percent and nitrogen oxides (NOx) by 69 percent.The EPA called the settlement its largest pollution-enforcement victory ever.
The agreement could have an even larger impact if it persuades other big power companies to settle their own pending legal cases, legal analysts say.
"When you have an eye-popping settlement of this magnitude, it sends a strong message to other litigants that at least one player has decided to fold his tent and move on," says Lynn Bergeson, a founding partner of Bergeson and Campbell, a Washington, D.C., law firm specializing in air-pollution litigation. If an election year brings Democratic appointees to the EPA and the Department of Justice, "it may seem safer to some of these companies to deal now with the devil you know, rather than the one you don't," she adds.
Duke Energy and partner Cinergy, the nation's third- and fourth- largest utilities before they merged last year, are fighting EPA pollution charges similar to the ones AEP faced. Another suit against a subsidiary of Southern Company, the nation's second-largest utility, is also pending.
If those three utilities alone agreed to clean up their emissions as AEP now has, all four would eliminate more than 2 million tons of SO2 and NOx emissions a year – roughly one-fifth of the annual output of those pollutants from all US power plants, says John Walke, clean-air program director for the Natural Resources Defense Council. "We think this deal could be even more significant down the road if the other utilities go ahead and settle."