<Page>

                                POWER OF ATTORNEY

       KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints James E. Rogers and R. Foster Duncan, or either of them with full power
to act without the other, the undersigned's true and lawful attorneys-in-fact
and agents, with full power of substitution and resubstitution, to execute for
and on behalf of the undersigned, in the undersigned's capacity as a director of
Cinergy Corp., the Form 10-K Annual Report of said corporation for the fiscal
year ended December 31, 2001, and to deliver said Form 10-K Annual Report so
signed for filing with the Securities and Exchange Commission.

       The undersigned does hereby ratify and confirm all that said
attorneys-in-fact and agents, and each of them, shall lawfully do by virtue
hereof.

       IN WITNESS WHEREOF, the undersigned has hereunto caused this Power of
Attorney to be executed on this 27th day of February, 2002.

                                        /s/ Phillip R. Cox
                                        ------------------
                                        Phillip R. Cox

<Page>

                                POWER OF ATTORNEY

       KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints James E. Rogers and R. Foster Duncan, or either of them with full power
to act without the other, the undersigned's true and lawful attorneys-in-fact
and agents, with full power of substitution and resubstitution, to execute for
and on behalf of the undersigned, in the undersigned's capacity as a director of
Cinergy Corp., the Form 10-K Annual Report of said corporation for the fiscal
year ended December 31, 2001, and to deliver said Form 10-K Annual Report so
signed for filing with the Securities and Exchange Commission.

       The undersigned does hereby ratify and confirm all that said
attorneys-in-fact and agents, and each of them, shall lawfully do by virtue
hereof.

       IN WITNESS WHEREOF, the undersigned has hereunto caused this Power of
Attorney to be executed on this 22nd day of February, 2002.

                                        /s/ George C. Juilfs
                                        --------------------
                                         George C. Juilfs

<Page>

                                  POWER OF ATTORNEY

     KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints James E. Rogers and R. Foster Duncan, or either of them with full
power to act without the other, the undersigned's true and lawful
attorneys-in-fact and agents, with full power of substitution and
resubstitution, to execute for and on behalf of the undersigned, in the
undersigned's capacity as a director of Cinergy Corp., the Form 10-K Annual
Report of said corporation for the fiscal year ended December 31, 2001, and
to deliver said Form 10-K Annual Report so signed for filing with the
Securities and Exchange Commission.

     The undersigned does hereby ratify and confirm all that said
attorneys-in-fact and agents, and each of them, shall lawfully do by virtue
hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto caused this Power of
Attorney to be executed on this 19th day of February, 2002.




                                       /s/ Thomas E. Petry
                                       -------------------
                                       Thomas E. Petry


<Page>

                                   POWER OF ATTORNEY

     KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints James E. Rogers and R. Foster Duncan, or either of them with full
power to act without the other, the undersigned's true and lawful
attorneys-in-fact and agents, with full power of substitution and
resubstitution, to execute for and on behalf of the undersigned, in the
undersigned's capacity as a director of Cinergy Corp., the Form 10-K Annual
Report of said corporation for the fiscal year ended December 31, 2001, and
to deliver said Form 10-K Annual Report so signed for filing with the
Securities and Exchange Commission.

     The undersigned does hereby ratify and confirm all that said
attorneys-in-fact and agents, and each of them, shall lawfully do by virtue
hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto caused this Power of
Attorney to be executed on this 19th day of February, 2002.




                                       /s/ Jackson H. Randolph
                                       -----------------------
                                       Jackson H. Randolph


<Page>

                                POWER OF ATTORNEY

       KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints James E. Rogers and R. Foster Duncan, or either of them with full power
to act without the other, the undersigned's true and lawful attorneys-in-fact
and agents, with full power of substitution and resubstitution, to execute for
and on behalf of the undersigned, in the undersigned's capacity as a director of
Cinergy Corp., the Form 10-K Annual Report of said corporation for the fiscal
year ended December 31, 2001, and to deliver said Form 10-K Annual Report so
signed for filing with the Securities and Exchange Commission.

       The undersigned does hereby ratify and confirm all that said
attorneys-in-fact and agents, and each of them, shall lawfully do by virtue
hereof.

       IN WITNESS WHEREOF, the undersigned has hereunto caused this Power of
Attorney to be executed on this 26th day of February, 2002.

                                        /s/ Mary L. Schapiro
                                        --------------------
                                        Mary L. Schapiro

<Page>
                                POWER OF ATTORNEY

       KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints James E. Rogers and R. Foster Duncan, or either of them with full power
to act without the other, the undersigned's true and lawful attorneys-in-fact
and agents, with full power of substitution and resubstitution, to execute for
and on behalf of the undersigned, in the undersigned's capacity as a director of
Cinergy Corp., the Form 10-K Annual Report of said corporation for the fiscal
year ended December 31, 2001, and to deliver said Form 10-K Annual Report so
signed for filing with the Securities and Exchange Commission.

       The undersigned does hereby ratify and confirm all that said
attorneys-in-fact and agents, and each of them, shall lawfully do by virtue
hereof.

       IN WITNESS WHEREOF, the undersigned has hereunto caused this Power of
Attorney to be executed on this 23rd day of February, 2002.

                                        /s/ John J. Schiff, Jr.
                                        -----------------------
                                        John J. Schiff, Jr.

<Page>

                                POWER OF ATTORNEY


         KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints James E. Rogers and R. Foster Duncan, or either of them with full power
to act without the other, the undersigned's true and lawful attorneys-in-fact
and agents, with full power of substitution and resubstitution, to execute for
and on behalf of the undersigned, in the undersigned's capacity as a director of
Cinergy Corp., the Form 10-K Annual Report of said corporation for the fiscal
year ended December 31, 2001, and to deliver said Form 10-K Annual Report so
signed for filing with the Securities and Exchange Commission.

         The undersigned does hereby ratify and confirm all that said
attorneys-in-fact and agents, and each of them, shall lawfully do by virtue
hereof.

         IN WITNESS WHEREOF, the undersigned has hereunto caused this Power of
Attorney to be executed on this 24th day of February, 2002.





                                                     /s/ Philip R. Sharp
                                                     -------------------
                                                     Philip R. Sharp

<Page>

                                POWER OF ATTORNEY

       KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints James E. Rogers and R. Foster Duncan, or either of them with full power
to act without the other, the undersigned's true and lawful attorneys-in-fact
and agents, with full power of substitution and resubstitution, to execute for
and on behalf of the undersigned, in the undersigned's capacity as a director of
Cinergy Corp., the Form 10-K Annual Report of said corporation for the fiscal
year ended December 31, 2001, and to deliver said Form 10-K Annual Report so
signed for filing with the Securities and Exchange Commission.

       The undersigned does hereby ratify and confirm all that said
attorneys-in-fact and agents, and each of them, shall lawfully do by virtue
hereof.

       IN WITNESS WHEREOF, the undersigned has hereunto caused this Power of
Attorney to be executed on this 19th day of February, 2002.

                                        /s/ Dudley S. Taft
                                        ------------------
                                        Dudley S. Taft

<Page>

                                POWER OF ATTORNEY

       KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints James E. Rogers and R. Foster Duncan, or either of them with full power
to act without the other, the undersigned's true and lawful attorneys-in-fact
and agents, with full power of substitution and resubstitution, to execute for
and on behalf of the undersigned, in the undersigned's capacity as a director of
Cinergy Corp., the Form 10-K Annual Report of said corporation for the fiscal
year ended December 31, 2001, and to deliver said Form 10-K Annual Report so
signed for filing with the Securities and Exchange Commission.

       The undersigned does hereby ratify and confirm all that said
attorneys-in-fact and agents, and each of them, shall lawfully do by virtue
hereof.

       IN WITNESS WHEREOF, the undersigned has hereunto caused this Power of
Attorney to be executed on this 23rd day of February, 2002.

                                        /s/ James K. Baker
                                        ------------------
                                        James K. Baker

<Page>

                               POWER OF ATTORNEY

     KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints James E. Rogers and R. Foster Duncan, or either of them with full
power to act without the other, the undersigned's true and lawful
attorneys-in-fact and agents, with full power of substitution and
resubstitution, to execute for and on behalf of the undersigned, in the
undersigned's capacity as a director of each of Cinergy Corp. and PSI Energy,
Inc., the Form 10-K Annual Report of each corporation for the fiscal year
ended December 31, 2001, and to deliver said Form 10-K Annual Reports so
signed for filing with the Securities and Exchange Commission.

     The undersigned does hereby ratify and confirm all that said
attorneys-in-fact and agents, and each of them, shall lawfully do by virtue
hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto caused this Power of
Attorney to be executed on this 25th day of February, 2002.




                                       /s/ Michael G. Browning
                                       -----------------------
                                       Michael G. Browning


<Page>

                               POWER OF ATTORNEY

     KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints James E. Rogers and R. Foster Duncan, or either of them with full
power to act without the other, the undersigned's true and lawful
attorneys-in-fact and agents, with full power of substitution and
resubstitution, to execute for and on behalf of the undersigned, in the
undersigned's capacity as a director of Cinergy Corp., the Form 10-K Annual
Report of said corporation for the fiscal year ended December 31, 2001, and
to deliver said Form 10-K Annual Report so signed for filing with the
Securities and Exchange Commission.

     The undersigned does hereby ratify and confirm all that said
attorneys-in-fact and agents, and each of them, shall lawfully do by virtue
hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto caused this Power of
Attorney to be executed on this 20th day of February, 2002.




                                       /s/ John A. Hillenbrand II
                                       --------------------------
                                       John A. Hillenbrand II


<Page>

                                POWER OF ATTORNEY

     KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints James E. Rogers and R. Foster Duncan, or either of them with full
power to act without the other, the undersigned's true and lawful
attorneys-in-fact and agents, with full power of substitution and
resubstitution, to execute for and on behalf of the undersigned, in the
undersigned's capacity as a director of each of The Cincinnati Gas & Electric
Company and The Union Light, Heat and Power Company, the Form 10-K Annual
Report of each corporation for the fiscal year ended December 31, 2001, and
to deliver said Form 10-K Annual Reports so signed for filing with the
Securities and Exchange Commission.

     The undersigned does hereby ratify and confirm all that said
attorneys-in-fact and agents, and each of them, shall lawfully do by virtue
hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto caused this Power of
Attorney to be executed on this 19th day of February, 2002.




                                       /s/ James L. Turner
                                       -------------------
                                       James L. Turner


<Page>

                            POWER OF ATTORNEY

     KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints James E. Rogers and R. Foster Duncan, or either of them with full
power to act without the other, the undersigned's true and lawful
attorneys-in-fact and agents, with full power of substitution and
resubstitution, to execute for and on behalf of the undersigned, in the
undersigned's capacity as a director of  PSI Energy, Inc., the Form 10-K
Annual Report of said corporation for the fiscal year ended December 31,
2001, and to deliver said Form 10-K Annual Report so signed for filing with
the Securities and Exchange Commission.

     The undersigned does hereby ratify and confirm all that said
attorneys-in-fact and agents, and each of them, shall lawfully do by virtue
hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto caused this Power of
Attorney to be executed on this 25th day of February, 2002.




                                       /s/ Larry E. Thomas
                                       -------------------
                                       Larry E. Thomas