Exhibit 24


                       BALTIMORE GAS AND ELECTRIC COMPANY

                                POWER OF ATTORNEY


         KNOW ALL THOSE BY THESE PRESENTS, that the undersigned directors and
officers of Baltimore Gas and Electric Company hereby constitute and appoint E.
Follin Smith as their true and lawful attorney and agent to do any and all acts
and things and to execute, in their name any and all instruments which said
attorney and agent may deem necessary or advisable to enable said corporation to
comply with the Securities Act of 1933, as amended, and any rules, regulations
and requirements of the Securities and Exchange Commission in respect thereof in
connection with the registration under said Act of not exceeding $400,000,000
principal amount of unsecured debt securities of said Company, maturing not more
than thirty years after the date as of which they are issued, all as authorized
by Resolutions adopted by the Board of Directors of Baltimore Gas and Electric
Company effective December 20, 2002 including specifically, but without limiting
the generality of the foregoing, power and authority to sign the names of the
undersigned directors and officers in the capacities indicated below, to any
registration statement to be filed with the Securities and Exchange Commission
in respect of said unsecured debt securities to any and all amendments to any
registration statement in respect to said unsecured debt securities, or to any
instruments or documents filed as part of or in connection with said
registration statement or amendments to such documents; and each of the
undersigned hereby ratifies and confirms all that said attorney and agent shall
do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, each of the undersigned has subscribed, or caused
to be subscribed, these presents this 21st day of December, 2002.

                                           Signature


Principal Executive
Officer and Director:                         /s/ FRANK O. HEINTZ
                                              -------------------------
                                                  Frank O. Heintz
                                 President, Chief Executive Officer and Director




Director:                                     /s/ MAYO A. SHATTUCK, III
                                              -------------------------
                                                Mayo A. Shattuck, III




Dated:        December 21, 2002