Exhibit 99.01


                    CERTIFICATION OF CHIEF EXECUTIVE OFFICER
                       PURSUANT TO 18 U.S.C. SECTION 1350


In connection with the accompanying Quarterly Report on Form 10-Q of Mississippi
Power Company for the quarter ended June 30, 2002, I, Michael D. Garrett, Chief
Executive Officer, hereby certify pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002, to the best of my knowledge and belief, that:

     (1)  such Quarterly Report on Form 10-Q of Mississippi Power Company for
          the quarter ended June 30, 2002, which this statement accompanies,
          fully complies with the requirements of Section 13(a) or 15(d) of the
          Securities Exchange Act of 1934; and

     (2)  the information contained in such Quarterly Report on Form 10-Q of
          Mississippi Power Company for the quarter ended June 30, 2002, fairly
          presents, in all material respects, the financial condition and
          results of operations of Mississippi Power Company.


                                             /s/Michael D. Garrett
                                             Michael D. Garrett
                                             Chief Executive Officer

Date:  August 12, 2002