Exhibit 32.2 EXHIBIT 32.2 - ------------ CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 Solely for the purposes of complying with 18 U.S.C. Section 1350, I, the undersigned Acting Chief Financial Officer of Enova Systems, Inc. (the "Company"), hereby certify that the Quarterly Report on Form 10-Q of the Company for the quarter ended June 30, 2004 (the "Report") fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 and that information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. /s/ LARRY B. LOMBARD - ------------------------------ Larry B. Lombard Acting Chief Financial Officer August 16, 2004 This certification accompanies this Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended. 29