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FirstEnergy Facts at a Glance

  • Six million customers
  • Nearly 18,000 megawatts of generating capacity
  • Operations in six states
  • 65,000 square miles of service territory
  • 20,000 miles of high-voltage transmission lines
  • $50 billion in assets
  • $15 billion in annual revenues
  • 16,500 employees


Bruce Mansfield Plant and Little Blue Run


Bruce Mansfield Plant

The Bruce Mansfield Plant, located in Shippingport, is the largest electric power plant in Pennsylvania, and one of the largest in the country. The Bruce Mansfield Plant was the first coal-fired power plant in North America built with sulfur dioxide (SO2) scrubbers installed as original equipment. The scrubbers utilize a lime-based solution to remove more than 95 percent of the SO2 from the plant’s emissions.

The scrubbing process produces what is called coal combustion byproducts (CCBs). The CCBs are stored at a disposal facility known as Little Blue Run under a permit from the Pennsylvania Department of Environmental Protection (DEP).


Little Blue Run

FirstEnergy will no longer place CCBs into the Little Blue Run disposal facility beyond December 31, 2016.  In April 2014, Pennsylvania DEP issued a permit to permanently close the facility over a 12-year period.  Planning and design work for closure are already underway, and closure activities at the site are scheduled to begin in 2017.


For More Information

For more information on Bruce Mansfield Plant and the Little Blue Run closure process, please visit FirstEnergy’s website at:


Watch the video for an overview of Bruce Mansfield Plant’s operation, including the scrubbing process and Little Blue Run disposal facility: