Exelon Corporation is an energy provider and holding Company for several energy businesses. Exelon is engaged in the energy generation business through its Exelon Generation Company, LLC (Generation) subsidiary; wholesale and retail energy sales through its Constellation business unit and the energy delivery business through its Baltimore Gas and Electric (BGE), Commonwealth Edison Company (ComEd) and PECO Energy Company (PECO) subsidiaries. Generationís integrated business consists of its owned and contracted electric generating facilities and investments in generation ventures that are marketed through its customer-facing activities. ComEdís energy delivery business consists of the purchase and regulated retail sale of electricity and the provision of transmission and distribution services to retail customers in northern Illinois. PECOís energy delivery business in southeastern Pennsylvania and BGEís in central Maryland.

Official website: www.exeloncorp.com