Chicago Department of Public Health Training Center

Exelon Corporation is one of the nation s largest electric utilities with more than $15 billion in annual revenues. It distributes electricity to approximately 5.2 million customers in Illinois and Pennsylvania and gas to 480,000 customers in the Philadelphia area. In addition, for energy delivery Exelon s operations include energy generation and power marketing. Exelon operates one of the largest nuclear fleets in the United States and the third largest commercial nuclear fleet in the world. Commonwealth Edison, or ComEd, is a unit of Exelon. ComEd and its nearly 6,000 employees are responsible for maintaining more than 78,000 miles of power lines that make up the electric transmission and distribution system in Northern Illinois. ComEd also provides customer operations for more than 3.7 million customers across the region, or 70 percent of the state s population. PECO is a unit of Exelon responsible for safe, reliable electric and natural gas distribution and customer service for residential business and institutional consumers in southeastern Pennsylvania. Exelon Power Generation owns and controls one of the largest generation portfolios in the country, nearly 33 gigawatts of low-cost owned and contracted generation. John W. Rowe has been the chief executive officer of Exelon for more than six years. He has been with the company for eight years. Rowe attended the University of Wisconsin Madison and earned a bachelor s and JD degree. Headquartered in Chicago, Exelon Corporation trades on the NYSE under the ticker symbol EXC.