The company has approximately 2,300 employees; its call center and field craft personnel are members of IBEW Local 614.

[2] PECO formerly provided electricity to 35,000 customers in portions of Cecil and Harford counties in Maryland through subsidiary Conowingo Power Company.

PECO's electric sales tend to peak in the summer and winter seasons, driven by air conditioning and heating load respectively when extreme temperatures create greater demand.

The company's natural gas sales are generally higher during the winter periods when cold temperatures create demand for heating.

PECO expects to purchase all of its wholesale electricity from competitive market sources subsequent to 2010 with retail customers charged the actual costs of procurement.

The Chester Waterside Station of the Philadelphia Electric Company was constructed in 1916 and listed on the National Register of Historic Places in 2007.

PECO's utility business is capital intensive and requires significant investments for the electric and gas delivery systems to ensure adequate capacity and reliability for customers.

PECO's anticipated capital expenditures for 2009 are estimated at $400 million—about three-fourths for the electric business, nearly 20 percent for gas, and the rest is common.