                                                                    Exhibit 32.1










                          CERTIFICATION PURSUANT TO
                18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
                SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


     In connection with the Quarterly Report of Energy Conversion Devices, Inc.
     (the "Company") on Form 10-Q for the quarter ended December 31, 2003, as
     filed with the Securities and Exchange Commission on the date hereof (the
     "Report"), I, Robert C. Stempel, Chief Executive Officer of the Company
     certify, pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section
     906 of the Sarbanes-Oxley Act of 2002, that based on my knowledge:

         1. The Report 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 the Report fairly presents, in all
            material respects, the financial condition and results of operations
            of the Company.


     February 17, 2004


      /s/ Robert C. Stempel
     ------------------------------
     Robert C. Stempel
     Chief Executive Officer





