Exhibit 99.1


                            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 on Form 10-Q of American Superconductor
Corporation (the "Company") for the period ended December 31, 2002 as filed with
the Securities and Exchange Commission on the date hereof (the "Report"), the
undersigned, Gregory J. Yurek, Chief Executive Officer of the Company, and
Stanley D. Piekos, Chief Financial Officer of the Company, each hereby
certifies, pursuant to 18 U.S.C. section 1350, as adopted pursuant to section
906 of the Sarbanes-Oxley Act of 2002, that:

(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.



/s/ Gregory J. Yurek

Gregory J. Yurek
Chief Executive Officer
February 13, 2003



/s/ Stanley D. Piekos

Stanley D. Piekos
Chief Financial Officer
February 13, 2003