Frederick and its surrounding communities are connected to the high-voltage grid through Potomac Edison, which was integrated into PJM’s operations in 2002 as a part of Allegheny Energy. It is now a subsidiary of FirstEnergy.
Population of Frederick: 67,421*
Total Potomac Edison customers: Approximately 220,000**
Total amount of megawatt-hours used in Potomac Edison: 3,641,799**
- Frederick was founded in 1745 by German settlers and is now the second-largest city in Maryland after Baltimore.
- Frederick is surrounded by historic Civil War battlefields and served as a major hospital center for the wounded.
- Francis Scott Key, writer of “The Star Spangled Banner,” practiced law and was interred in Frederick.
Fun facts are from the National Center for Smart Growth.