ComEd 2006 Annual Report Download - page 7

PART I
ITEM 1. BUSINESS
General
Exelon, a utility services holding company, operates through its principal subsidiaries—
Generation, ComEd and PECO—as described below, each of which is treated as an operating
segment by Exelon. See Note 20 of the Combined Notes to Consolidated Financial Statements for
further segment information.
Exelon was incorporated in Pennsylvania in February 1999. Exelon’s principal executive offices
are located at 10 South Dearborn Street, Chicago, Illinois 60603, and its telephone number is
312-394-7398.
Generation
Generation’s business consists of its owned and contracted electric generating facilities, its
wholesale energy marketing operations and its competitive retail sales operations.
Generation was formed in 2000 as a Pennsylvania limited liability company. Generation began
operations as a result of a corporate restructuring effective January 1, 2001 in which Exelon separated
its generation and other competitive businesses from its regulated energy delivery businesses at
ComEd and PECO. Generation’s principal executive offices are located at 300 Exelon Way, Kennett
Square, Pennsylvania 19348, and its telephone number is 610-765-5959.
ComEd
ComEd’s energy delivery business consists of the purchase and regulated retail and wholesale
sale of electricity and the provision of distribution and transmission services to retail and wholesale
customers in northern Illinois, including the City of Chicago.
ComEd was organized in the State of Illinois in 1913 as a result of the merger of Cosmopolitan
Electric Company into the original corporation named Commonwealth Edison Company, which was
incorporated in 1907. ComEd’s principal executive offices are located at 440 South LaSalle Street,
Chicago, Illinois 60605, and its telephone number is 312-394-4321.
PECO
PECO’s energy delivery business consists of the purchase and regulated retail sale of electricity
and the provision of distribution and transmission services to retail customers in southeastern
Pennsylvania, including the City of Philadelphia, as well as the purchase and regulated retail sale of
natural gas and the provision of distribution services to retail customers in the Pennsylvania counties
surrounding the City of Philadelphia.
PECO was incorporated in Pennsylvania in 1929. PECO’s principal executive offices are located
at 2301 Market Street, Philadelphia, Pennsylvania 19103, and its telephone number is 215-841-4000.
Termination of Proposed Merger with Public Service Enterprise Group Incorporated
On December 20, 2004, Exelon entered into an Agreement and Plan of Merger (Merger
Agreement) with Public Service Enterprise Group Incorporated (PSEG), a public utility holding
company primarily located and serving customers in New Jersey, whereby PSEG would have been
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