Exelon Corporation, a utility services holding company, engages in energy generation and delivery businesses in the United States and Canada. The company owns electric generating facilities, such as nuclear, fossil, wind, hydroelectric, and solar generating facilities. It also sells electricity to wholesale and retail customers, and sells natural gas, renewable energy, and other energy-related products and services. In addition, it is involved in the purchase and regulated retail sale of electricity. Exelon Corporation is headquartered in Chicago, Illinois.