Dayton Power & Light, a subsidiary of AES Corp. (AES), said in an emailed statement that it planned to close the J.M. Stuart and Killen plants by June 2018 because they would not be “economically viable beyond mid-2018.”
Coal demand has flagged in recent years due to competition from cheap and plentiful natural gas.
The plants along the Ohio River in Adams County employ some 490 people and generate about 3,000 megawatts of power from coal.