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                                  UNITED STATES
                             Washington, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934
                              (Amendment No: 2)*

                                 Enova Systems, Inc.
                                (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                 (CUSIP Number)

                                December 31, 2008
             (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:
[ ] Rule 13d-1(b)
[X] Rule 13d-1(c)
[ ] Rule 13d-1(d)

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for any  subsequent  amendment  containing  information  which  would  alter the
disclosures  provided  in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the

CUSIP No. 29355M200

     1.   Names of Reporting Persons.
          I.R.S. Identification Nos. of above persons (entities only).

            GAM Holding AG
     2.   Check the Appropriate Box if a Member of a Group (See Instructions)
          (a)      .............................................................
          (b)      .............................................................

     3.   SEC Use Only

     4.   Citizenship or Place of Organization


Number of               5.           Sole Voting Power
Beneficially            6.           Shared Voting Power
Owned by                              1,514,275
Each Reporting                       ----------
Person With*            7.           Sole Dispositive Power

                        8.           Shared Dispositive Power

     9. Aggregate Amount Beneficially Owned by Each Reporting Person


     10. Check if the Aggregate  Amount in Row (9) Excludes  Certain Shares
     (See Instructions)

     11. Percent of Class Represented by Amount in Row (9)


     12. Type of Reporting Person (See Instructions)  HC

*GAM Holding AG disclaims beneficial ownership of such securities.

Item 1.
        (a) Name of Issuer   Enova Systems, Inc.

        (b) Address of Issuer's Principal Executive Offices
            1560 West 190th Street, Torrance, California 90501

Item 2.
        (a) Name of Person Filing
            GAM Holding AG
        (b) Address of Principal Business Office or, if none, Residence
            Klaustrasse 10, 8008 Zurich, Switzerland

        (c) Citizenship

        (d) Title of Class of Securities
            Common Stock

        (e) CUSIP Number

Item  3.  If  this  statement  is  filed  pursuant  to   or
          240.13d-2(b) or (c), check whether the person filing is a:

     [ ] (a)  Broker or dealer  registered  under  section  15 of the Act (15
          U.S.C. 78o).

     [ ] (b) Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

     [ ] (c) Insurance  company as defined in section 3(a)(19) of the Act (15
          U.S.C. 78c).

     [ ] (d) Investment  company registered under section 8 of the Investment
          Company Act of 1940 (15 U.S.C 80a-8).

     [ ] (e) An investment adviser in accordance

     [ ] (f) An  employee  benefit  plan  or  endowment  fund  in  accordance

     [ ] (g) A  parent  holding  company  or  control  person  in  accordance

     [ ] (h) A savings associations as defined in Section 3(b) of the Federal
          Deposit Insurance Act (12 U.S.C. 1813);

     [ ] (i) A  church  plan  that is  excluded  from  the  definition  of an
          investment  company under section  3(c)(14) of the Investment  Company
          Act of 1940 (15 U.S.C. 80a-3);

     [ ] (j) Group, in accordance withss.240.13d-1(b)(1)(ii)(J).

Item 4.       Ownership.

Provide the following  information regarding the aggregate number and percentage
of the class of securities of the issuer identified in Item 1.


              (a)    Amount beneficially owned: 1,514,275
              (b)    Percent of class: 7.34%

     The percentage used herein was calculated based upon a total of 20,635,041
shares of the Company's Common Stock issued and outstanding as of September 30,
2008, as set forth in the Company's Form 10-Q.

              (c)    Number of shares as to which the person has:

                     (i) Sole power to vote or to direct the vote
                     (ii) Shared power to vote or to direct the vote          1,514,275
                     (iii) Sole power to dispose or to direct the
                           disposition of                                  -------------

                     (iv) Shared power to dispose or to direct the
                          disposition of                                      1,514,275

Item 5.       Ownership of Five Percent or Less of a Class

If this  statement  is being filed to report the fact that as of the date hereof
the  reporting  person has ceased to be the  beneficial  owner of more than five
percent of the class of securities, check the following [ ].

Item 6. Ownership of More than Five Percent on Behalf of Another Person.

Not applicable

Item 7.  Identification  and Classification of the Subsidiary Which Acquired the
Security Being Reported on By the Parent Holding Company or Control Person.

GAM International Management Limited
GAM London Ltd.

This report is filed by GAM Holding AG, a holding company registered in
Switzerland. GAM International Management Limited ("GIML") and GAM London
Limited ("GAM London") are wholly-owned subsidiaries of GAM Holding AG. GIML is
the investment adviser of GAM Global Diversified and GAM London is the
investment adviser of SJP GAM Managed - Life, SJP GAM Managed - Pension, SJPI
GAM Sterling Managed Fund and SJPI GAM US Dollar Managed Fund (collectively, the
"Funds") and therefore indirectly own the 1,514,275 shares of Common Stock in
Enova Systems, Inc. of which the Funds hold.

Item 8.       Identification and Classification of Members of the Group

Not Applicable

Item 9.       Notice of Dissolution of Group

Not Applicable

Item 10. Certification

           The following certification shall be included if the statement is
           filed pursuant to ss.240.13d-1(c): By signing below I certify that,
           to the best of my knowledge and belief, the securities referred to
           above were not acquired and are not held for the purpose of or with
           the effect of changing or influencing the control of the issuer of
           the securities and were not acquired and are not held in connection
           with or as a participant in any transaction having that purpose or


After reasonable inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.

                                              February 11, 2009

                                          /s/ Johannes De Gier

                                   Johannes De Gier, Chairman of the Board

                                            February 11, 2009

                                             /s/ Raymond Baer

                                        Raymond Baer, Vice-Chairman

                                            February 11, 2009

                                          /s/ Dieter Enkelmann

                                        Dieter Enkelmann, Director