ComEd 2006 Annual Report Download - page 402

SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Chicago and State of Illinois on the 13th day of February, 2007.
EXELON CORPORATION
By: /s/ J OHN W. R OWE
Name: John W. Rowe
Title: Chairman, Chief Executive Officer and President
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed
by the following persons on behalf of the registrant and in the capacities indicated on the 13th day of
February, 2007.
Signature Title
/s/ J OHN W. R OWE
John W. Rowe
Chairman, Chief Executive Officer and
President (Principal Executive Officer)
/s/ J OHN F. Y OUNG
John F. Young
Executive Vice President, Finance and
Markets and Chief Financial Officer
(Principal Financial Officer)
/s/ M ATTHEW F. H ILZINGER
Matthew F. Hilzinger
Senior Vice President and Corporate
Controller (Principal Accounting Officer)
This annual report has also been signed below by John W. Rowe, Attorney-in-Fact, on behalf of
the following Directors on the date indicated:
Edward A. Brennan Edgar D. Jannotta
M. Walter D’Alessio John M. Palms, PhD.
Nicholas Debenedictis William C. Richarson
Bruce DeMars Thomas J. Ridge
Nelson A. Diaz John W. Rogers, Jr.
Sue L. Gin Ronald Rubin
Rosemarie B. Greco Richard L. Thomas
By: /s/ J OHN W. R OWE
February 13, 2007
Name: John W. Rowe