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Exhibit 10.2

AMENDMENT

TO

EMPLOYMENT AGREEMENT

        This Amendment is made and entered into as of the 31st day of March,
2004, by and between Satcon Technology Corporation, a Delaware corporation (the
"Company"), and David B. Eisenhaure (the "Executive").

        The following facts set forth the background to this Amendment:

        A.    The Company and the Executive entered into a Key Employee
Agreement, dated as of July 1, 1992 (the "Agreement"). The Agreement has been
automatically renewed in accordance with the terms of Section 2.1 thereof for
two successive three year periods and will be automatically renewed for a third
three year period unless either party gives notice of non-renewal pursuant to
Section 2.1 on or prior to April 1, 2004.

        B.    The Company and the Executive desire to amend the Agreement to
delete the provision for automatic renewal, retaining, however, the right of the
Company to terminate the Agreement at any time pursuant to the terms of
Section 2.2(a) or (b) thereof.

        NOW, THEREFORE, in consideration of the premises and the mutual
agreements contained herein and for other good and valuable consideration the
receipt and sufficiency of which is hereby acknowledged, the parties agree as
follows:

        1.    Amendments.    The Agreement is hereby amended as follows:

        (a)   Section 2 of the Agreement is hereby amended by deleting
Section 2.1 of the Agreement in its entirety and replacing it with the
following:

"[Intentionally omitted.]"

        (b)   Exhibit A to the Agreement is hereby amended by deleting therefrom
the phrase "or this Employment Agreement is not renewed (without your
consent),".

        2.    Effective Date.    This Amendment shall be effective as of the
date set forth above. From and after the effective date hereof, each reference
in the Agreement to "this Agreement," "hereto", "hereunder" or words of like
import, and all references to the Agreement in any and all agreements,
instruments, documents, notes, certificates and other writings of every kind and
nature shall be deemed to mean the Agreement as modified and amended by this
Amendment.

        3.    Counterparts.    This Amendment may be executed in counterparts
and by different parties hereto in separate counterparts each of which, when so
executed and delivered, shall be deemed to be an original and all of which when
taken together, shall constitute one and the same instrument.

        4.    No Other Modifications.    Except as otherwise expressly modified
by the terms and provisions of this Amendment, the Agreement shall remain in
full force and effect, and is hereby in all respects confirmed and ratified by
the parties hereto; and, except as expressly provided herein, nothing in this
Amendment will be construed as a waiver of any of the rights or obligations of
the parties under the Agreement.

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        IN WITNESS WHEREOF, the Company and the Executive have executed this
Amendment as of the date set forth above.

    COMPANY:
 
 
SATCON TECHNOLOGY CORPORATION,
a Delaware corporation
 
 
By:
 
/s/ Ralph M. Norwood

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EXECUTIVE:
 
 
/s/ David B. Eisenhaure

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David B. Eisenhaure

2

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Exhibit 10.2