Supreme Court’s EPA ruling won’t impact AEP plant closings

The U.S. Supreme Court is set to hear arguments on a controversial pollution rule that American Electric Power Company Inc. says helped lead to plant closures, but a favorable outcome for the Columbus utility won’t mean those plants will re-open. The court on Wednesday will weigh U.S. EPA rules announced in 2011 that limit mercury and other emissions from coal-fired power plants. AEP (NYSE:AEP) said last week it would close its Muskingum River plant in Beverly, Ohio, while other Appalachian coal-fired…