Document:

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                                                                    Exhibit 10.7

211 Second Avenue,
Waltham, MA 02154 USA
TL: 781.890.7117    FX: 781.890.7141

MARK A. FARBER
President

February 26, 1999

Dr. Emanuel Sachs
[CONFIDENTIAL TREATMENT REQUESTED]/*/
[CONFIDENTIAL TREATMENT REQUESTED]/*/

Dear Ely:

Please acknowledge the following changes to our License and Consulting Agreement
dated September 30, 1994:

     -    Effective January 1, 1999, the consulting fee will be raised to
$ [CONFIDENTIAL TREATMENT REQUESTED] /*/ per hour.
     -    The Minimum Royalty, as specified in Exhibit B, will be changed for
          the year 1998 only from $ [CONFIDENTIAL TREATMENT REQUESTED] /*/ to
          [CONFIDENTIAL TREATMENT REQUESTED] /*/. The rest of the Minimum
          Royalty schedule will remain unchanged.

Please sign both copies of this letter and return one to me.

Sincerely,

/s/ Mark A. Farber
     President

/s/ Emanuel M. Sachs
----------------------------
Emanuel M. Sachs

/*/ [CONFIDENTIAL TREATMENT REQUESTED] INDICATES MATERIAL THAT HAS BEEN OMITTED
AND FOR WHICH CONFIDENTIAL TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED
MATERIAL HAS BEEN FILED WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO
RULE 406 PROMULGATED UNDER THE SECURITIES ACT OF 1933, AS AMENDED.
<PAGE>   2

                                    AGREEMENT

     This Agreement is made and entered into as of the 30th day of September,
1994, by and between Evergreen Solar, Inc., of 76 Ten Hills Road, Somerville,
Massachusetts 02145 (hereinafter "EVERGREEN"), and Emanuel M. Sachs, of 18
Moreland Avenue, Newton, Massachusetts 02159 (hereinafter "SACHS").

                                   WITNESSETH

     WHEREAS, EVERGREEN is engaged in the development and marketing of products
which incorporate ribbon technology, such as crystalline silicon photovoltaics
and photovoltaic solar cells;

     WHEREAS, SACHS owns or has rights in and to certain patents, patent rights,
know-how and technology relating to ribbon technology and is desirous of
granting an exclusive license in and to all of such patents, patent rights,
know-how and technology to EVERGREEN;

     WHEREAS, EVERGREEN desires to obtain a license under such patents, patent
rights, know-how and technology upon the terms and conditions hereinafter set
forth;

     WHEREAS, SACHS desires to provide consulting services to EVERGREEN in the
area of ribbon technology;

     WHEREAS, EVERGREEN desires to purchase the consulting services of SACHS in
accord with the terms and conditions hereinafter set forth;

         NOW, THEREFORE, in consideration of the mutual covenants expressed
herein and other good and valuable consideration, receipt and sufficiency of
which is hereby acknowledged, EVERGREEN and SACHS agree as follows:

                             ARTICLE I - DEFINITIONS

     1.1  "Licensed Patents" shall mean patents as set forth in EXHIBIT A of
this Agreement.

     1.2  "Valid Claim" shall mean any issued claim of a Licensed Patent which
has not lapsed or expired, or has not been determined invalid or unenforceable
by a court of proper jurisdiction in an unappealed and unappealable decision.

     1.3  "Wafer" shall mean any ribbon substrate which would infringe a claim
of a Licensed Patent.

     1.4  "Cell" shall mean a single Wafer which is processed to provide
electrical output.

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<PAGE>   3

     1.5  "Module" shall mean a plurality of Cells which are connected with a
common electrical output.

     1.6  "Integrated Product" shall mean any product which is sold as a unit by
EVERGREEN and which incorporates a Wafer, Cell or Module as part of the unit.

     1.7  "Other Product" shall mean any product, other than a Wafer, Cell,
Module or Integrated Product, which would infringe a claim of a Licensed
Patent.

     1.8  "Technology" shall mean all technology, including knowledge, know-how,
techniques, materials, products, trade secrets, data, methods, processes,
inventions (whether or not patentable) and intellectual property rights in and
to the Licensed Patents, and including, without limitation, ribbon technology,
developed or otherwise owned by SACHS, which was developed, conceived, or
written in connection with the inventions of the Licensed Patents and which
otherwise aids in the practice of the inventions set forth in the Licensed
Patents; and all technology developed, conceived, written, and made in
connection with this Agreement.

     1.9  (A)  "EVERGREEN Confidential Information" shall mean any information
or Technology of a confidential or proprietary nature which is disclosed by
EVERGREEN to SACHS or which is developed or licensed pursuant to this Agreement,
including, but not limited to, all technical data, engineering information,
computer programs, drawings, blueprints, descriptions, know-how, samples,
marketing plans, business strategy, and financial projections. EVERGREEN
Confidential Information shall not include any information or data which (i) is
in or becomes part of the public domain by any means other than breach of
obligations hereunder, (ii) was known by SACHS at the time of disclosure, or
(iii) is, at any time, disclosed to SACHS by a third party having right to
disclose the same.

          (B)  "SACHS Confidential Information" shall mean any information or
Technology of a confidential or proprietary nature which is disclosed by SACHS
to EVERGREEN and which is outside the scope of the consulting services to be
provided by SACHS to EVERGREEN pursuant to Article IV of this Agreement,
including, but not limited to, all technical data, engineering information,
computer programs, drawings, blueprints, descriptions, know-how, samples,
marketing plans, business strategy, and financial projections. SACHS
Confidential Information shall not include any information or data which (i) is
in or becomes part of the public domain by any means other than breach of
obligations hereunder, (ii) was known by EVERGREEN at the time of disclosure, or
(iii) is, at any time, disclosed to EVERGREEN by a third party having right to
disclose the same.

     1.10 "Kilowatt" shall mean the unit of measure of electrical output of a
Cell or Module which is in a normal condition for sale by EVERGREEN; and shall
be defined as the Direct Current Power Output, defined below, of such a Cell or
Module under standard test conditions which include (i) 1000 watts per square
meter of solar irradiance; (ii) an AM 1.5 spectrum; and (iii) a cell temperature
of 25 degrees Centigrade. "Direct Current Power Output" shall mean the peak
power output of such a Cell or Module, or the warranty power rating of such a
Cell or Module, whichever is less.

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     1.11 "Net Wafer Revenue" shall mean the sales price or the fair market
value of any other consideration actually received by EVERGREEN from sales to
EVERGREEN's customers of Wafers less any (i) amounts repaid or credited due to
retroactive price reductions or due to rejections or returns, (ii) trade or
quantity discounts allowed and taken, (iii) amounts written off as a result of
retroactive price reductions, (iv) customs, duties, sales, use or similar taxes,
(v) freight and insurance charges, (vi) collection costs, and (vii) amounts
discounted or owed from sales to, or licenses with, the United States
Government.

     1.12 "Net Cell Revenue" shall mean the sales price or the fair market value
of any other consideration actually received by EVERGREEN from sales to
EVERGREEN's customers of Cells, less any amounts specified in Article
1.11(i)-(vii).

     1.13 "Net Module Revenue" shall mean the sales price or the fair market
value of any other consideration actually received by EVERGREEN from sales to
EVERGREEN's customers of Modules, less any amounts specified in Article
1.11(i)-(vii).

     1.14 (A)  In the event that a Wafer is sold within an Integrated Product
without a Cell, the Net Wafer Revenue shall mean the usual selling price of the
Wafer when sold separately, less any amounts specified in Article 1.11(i)-(vii);
or, in the absence of such usual selling price for such Wafer, shall correspond
to the usual selling price of wafers sold separately by competitors of EVERGREEN
which are of similar type, kind or utility as the Wafer, less any amounts
specified in Article 1.11(i)-(vii).

          (B)  In the event that a Cell is sold within an Integrated Product
without a Module, the Net Cell Revenue shall mean the usual selling price of the
Cell when sold separately, less any amounts specified in Article 1.11(i)-(vii);
or, in the absence of such usual selling price for such Cell, shall correspond
to the usual selling price of cells sold separately by competitors of EVERGREEN
which are of similar type, kind or utility as the Cell, less any amounts
specified in Article 1.11(i)-(vii).

          (C)  In the event that the Module is sold within an Integrated
Product, the Net Module Revenue shall mean the usual selling price of the Module
when sold separately, less any amounts specified in Article 1.11(i)-(vii); or,
in the absence of such usual selling price for such Module, shall correspond to
the usual selling price of modules sold separately by competitors of EVERGREEN
which are of similar type, kind or utility as the Module, less any amounts
specified in Article 1.11(i)-(vii).

     1.15 "Net Other Product Revenue" shall correspond to the fair market value
attributable to sales to EVERGREEN's customers of Other Products as the parties
hereto agree in writing and after good faith negotiations, less any amounts
specified in Article 1.11(i)-(vii); or, in the absence of such agreed-to value,
the Net Other Product Revenue shall correspond to the respective valuation of
technology within the Other Product and covered by the Licensed Patents to the
overall valuation of the Other Product, less any amounts specified in Article
1.11(i)-(vii).

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     1.16. "Protected Country" shall mean a country where the manufacture, sale
or use of a Wafer, Cell, Module, Integrated Product or Other Product would
infringe a Valid Claim of a Licensed Patent in that country.

     1.17 "Unprotected Country" shall mean a country where the manufacture, sale
and use of a Wafer, Cell, Module, Integrated Product or Other Product would not
infringe a Valid Claim of a Licensed Patent in that country.

                               ARTICLE II - GRANT

     SACHS hereby grants to EVERGREEN, its successors, assigns, and legal
representatives, the irrevocable, except as provided herein, world-wide right
and license in and to the Technology and the Licensed Patents, including the
right to make, have made, use, lease, sub-license and sell Wafers, Cells,
Modules, Integrated Products and Other Products and to enforce any of the patent
rights of the Licensed Patents. Such license shall be exclusive, except for
rights to the Licensed Patents held by the U.S. Department of Energy'(the "DOE")
pursuant to the (i) Settlement Agreement, dated October 17, 1983, by and among
the DOE, SACHS, Theodore F. Ciszek, Jeffery L. Hurd and Arthur D. Little and
(ii) two DOE contracts (nos. XW-1-1069-1 and ZB-3-03009-1).

                            ARTICLE III - ROYALTIES

     3.1  SACHS shall earn a royalty of [CONFIDENTIAL TREATMENT REQUESTED]/*/ of
the Net Wafer Revenue from Wafers made, used or sold by EVERGREEN in, or made or
sold by EVERGREEN for delivery to Protected Countries, during the term of this
Agreement. SACHS shall earn a royalty of [CONFIDENTIAL TREATMENT REQUESTED]/*/
of the Net Wafer Revenue from Wafers made, used and sold by EVERGREEN in
Unprotected Countries, during the term of this Agreement.

     3.2  For the first [CONFIDENTIAL TREATMENT REQUESTED]/*/ Kilowatts of
combined electrical output of Cells, Modules and Integrated Products made, used
or sold by EVERGREEN in, or made or sold by EVERGREEN for delivery to, Protected
Countries and Unprotected Countries, SACHS shall earn royalties for such Cells,
Modules and Integrated Products at the following rates:

          (A)  For Cells, Modules and Integrated Products made, used or sold by
EVERGREEN in, or made or sold by EVERGREEN for delivery to Protected Countries,
SACHS shall earn royalties at the rate of:

               (i)  [CONFIDENTIAL TREATMENT REQUESTED]/*/ of the Net Cell
                    Revenue; and

               (ii) [CONFIDENTIAL TREATMENT REQUESTED]/*/ of the Net Module
                    Revenue.

          (B)  For Cells, Modules and Integrated Products made, used and sold by
EVERGREEN in Unprotected Countries, SACHS shall earn royalties at the rate of:

               (i)  [CONFIDENTIAL TREATMENT REQUESTED]/*/ of the Net Cell
                    Revenue; and

/*/ [CONFIDENTIAL TREATMENT REQUESTED] INDICATES MATERIAL THAT HAS BEEN OMITTED
AND FOR WHICH CONFIDENTIAL TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED
MATERIAL HAS BEEN FILED WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO
RULE 406 PROMULGATED UNDER THE SECURITIES ACT OF 1933, AS AMENDED.

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               (ii) [CONFIDENTIAL TREATMENT REQUESTED]/*/ of the Net Module
                    Revenue.

     3.3  After the first [CONFIDENTIAL TREATMENT REQUESTED]/*/ kilowatts of
combined electrical output of Cells, Modules and Integrated Products made, used
or sold by Evergreen in, or made or sold by EVERGREEN for delivery to, Protected
Countries and Unprotected Countries, SACHS shall earn royalties for such Cells,
Modules and Integrated Products at the following rates:

          (A)  For Cells, Modules and Integrated Products made, used or sold by
EVERGREEN in, or made or sold by EVERGREEN for deliver to, Protected Countries,
SACHS shall earn royalties at the rate of:

               (i)  [CONFIDENTIAL TREATMENT REQUESTED]/*/ of the Net Cell
                    Revenue; and

               (ii) [CONFIDENTIAL TREATMENT REQUESTED]/*/ of the Net Module
                    Revenue.

          (B)  For Cells, Modules and Integrated Products made, used and sold by
EVERGREEN in Unprotected Countries, SACHS shall earn royalties at the rate of:

               (i)  [CONFIDENTIAL TREATMENT REQUESTED]/*/ of the Net Cell
                    Revenue; and

               (ii) [CONFIDENTIAL TREATMENT REQUESTED]/*/ of the Net Module
                    Revenue.

     3.4  SACHS shall earn a royalty of [CONFIDENTIAL TREATMENT REQUESTED]/*/ of
the Net Other Product Revenue from Other Products made, used or sold by
EVERGREEN in, or made or sold by EVERGREEN for delivery to, Protected Countries,
during the term of this Agreement. SACHS shall earn a royalty of [CONFIDENTIAL
TREATMENT REQUESTED]/*/ of the Net Other Product Revenue from Other Products
made, used and sold by EVERGREEN in Unprotected Countries, during the term of
this Agreement.

     3.5  Commencing in 1998, if the aggregate annual royalties paid or payable
to SACHS under this Agreement for any 12-month calendar year (the "Measurement
Year") are less than the amount set forth on EXHIBIT B hereto opposite such
Measurement Year (the "Minimum Royalty"), EVERGREEN shall have the right and
option to pay SACHS, within forty-five (45) days after the last day of the
Measurement Year, the Minimum Royalty in lieu of the royalty payments otherwise
paid or payable to SACHS under this Agreement for such Measurement Year, in
which event EVERGREEN shall retain all of its rights and to the license granted
by SACHS under this Agreement; provided, however, that if EVERGREEN fails,
within forty-five (45) days after the last day of any Measurement Year to pay
SACHS the greater of the Minimum Royalty or the royalty payments otherwise due
under this Agreement for such Measurement Year, SACHS shall have the right to
terminate this Agreement and all of the rights, privileges and license granted
hereunder in accordance with Article VII, except that, in this instance only,
this Agreement automatically shall terminate as of the last day of the cure
period set forth in Section 7.2 of this Agreement if EVERGREEN fails to cure its
nonpayment under this Section 3.5 within such cure period, without any
requirement of arbitration.

/*/ [CONFIDENTIAL TREATMENT REQUESTED] INDICATES MATERIAL THAT HAS BEEN OMITTED
AND FOR WHICH CONFIDENTIAL TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED
MATERIAL HAS BEEN FILED WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO
RULE 406 PROMULGATED UNDER THE SECURITIES ACT OF 1933, AS AMENDED.

                                      -6-
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     3.6  Any royalties payable to SACHS under this Agreement shall be paid to
SACHS by EVERGREEN within forty-five (45) days after the conclusion of the
calendar-year quarter during which such royalties were earned. At the time of
the payment of any royalties to SACHS, EVERGREEN also shall provide SACHS with
an accounting of the sales of products upon which the royalties were based and
all material costs associated with such sales, including, without limitation,
all deductions pursuant to Section 1.11(i)-(vii). Any overdue royalty payments
shall bear interest at a rate equal to the prime rate on the date such royalties
were initially due. Any revenues earned on sales of covered products in foreign
countries shall be converted to American dollars for purposes of calculating
royalties due SACHS under this Agreement at the exchange rate in effect on the
last day of the calendar-year quarter in which the foreign sales occurred.

     3.7  EVERGREEN may sublicense any of its rights and interests in and to
this Agreement, including, without limitation, its rights and interests in and
to the Licensed Patents and the Technology; and, in such event, SACHS shall earn
royalties with respect to sales by EVERGREEN sublicensees of Wafers, Cells,
Modules, Integrated Products and Other Products in accordance with this Article
III, which shall be payable by EVERGREEN. Evergreen shall keep records of all
transactions by its sublicensees with respect to Wafers, Cells, Modules,
Integrated Products and Other Products, in accordance with Section 10.2 of this
Agreement.

                    ARTICLE IV - CONSULTING SERVICES OF SACHS

     4.1  Simultaneously with the execution of this Agreement, EVERGREEN shall
issue and sell to SACHS [CONFIDENTIAL TREATMENT REQUESTED]/*/ shares of Common
Stock, par value $.01 per share, of EVERGREEN ("Common Stock") at a price of
[CONFIDENTIAL TREATMENT REQUESTED]/*/ per share in connection with the
consulting services of SACHS to be performed in accordance with Article 4.2. In
connection with his purchase of Common Stock, SACHS has executed a Stock
Restriction Agreement with EVERGREEN, of even date herewith (the "Stock
Restriction Agreement") in substantially the form attached hereto as EXHIBIT C,
and is subject to all terms and conditions therein.

     4.2  EVERGREEN shall have the right, but not the obligation, to demand the
consulting services of SACHS; and SACHS shall be obligated, upon demand by
EVERGREEN, to spend up to (i) [CONFIDENTIAL TREATMENT REQUESTED]/*/ hours during
the first three-month period after October 1, 1994, (ii) [CONFIDENTIAL TREATMENT
REQUESTED]/*/ hours in each of the second, third, and fourth three-month periods
after October 1, 1994, and (iii) [CONFIDENTIAL TREATMENT REQUESTED]/*/ hours in
each of the three-month periods thereafter until [CONFIDENTIAL TREATMENT
REQUESTED]/*/, to provide advice and consultation to EVERGREEN with respect to
the design, development, enhancement, modification, pursuit and defense of the
Technology, including without limitation the Licensed Patents, and marketing and
manufacturing of Wafers, Cells, Modules, Integrated Products, Other Products and
the Technology in accordance with EVERGREEN's reasonable requests.

     4.3  EVERGREEN shall pay SACHS [CONFIDENTIAL TREATMENT REQUESTED]/*/ per
hour for every hour actually spent by SACHS to fulfill his obligations of
Article IV. Such pay shall be paid to SACHS on a monthly basis within 30 days of
presentation to EVERGREEN of an invoice therefor with all necessary supporting
documentation EVERGREEN shall reimburse SACHS for reasonable and necessary
out-of-pocket expenses incurred by SACHS during the term of this

/*/ [CONFIDENTIAL TREATMENT REQUESTED] INDICATES MATERIAL THAT HAS BEEN OMITTED
AND FOR WHICH CONFIDENTIAL TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED
MATERIAL HAS BEEN FILED WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO
RULE 406 PROMULGATED UNDER THE SECURITIES ACT OF 1933, AS AMENDED.

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Agreement in connection with his provision of consulting services hereunder (the
"Expenses"), provided that such Expenses are properly deductible to EVERGREEN
and accounted for in accordance with the requirements of the Internal Revenue
Service; and provided also that Expenses shall not exceed $100 in any month
unless authorized in advance and in writing by EVERGREEN.

     4.4  All research, technical data, and other information, discoveries,
inventions or improvements thereto, designs, trademarks, formulas, products or
plans conceived of or discovered by SACHS, whether solely or jointly with others
during the course of and within the scope of the consulting services performed
for EVERGREEN, including all technology directly relating to the Licensed
Patents and whether or not such invention or improvement is made at the request
or suggestion of EVERGREEN or in accordance with its plans and proposals, shall
be the sole property of EVERGREEN, and, either during the course of such
consulting services or thereafter, SACHS will promptly and fully disclose to
EVERGREEN or its authorized representative, successors or assigns, all such
inventions and improvements, and will execute and deliver to EVERGREEN, or its
authorized representative, successors or assigns, all information, including
written applications, diagrams, plans or other documents, as may be necessary or
appropriate to patent, register, copyright, obtain, perfect, or explain any such
research data and other information, discoveries, inventions or improvements
thereto, formulas, designs, trademarks, products, or plans, and shall perform
such other acts as are necessary to perfect title in and to EVERGREEN; provided
that SACHS shall be compensated by EVERGREEN at the consulting rate set forth in
this Article IV for SACHS' assistance with respect to patent preparation or
prosecution.

     4.5  (A)  In the event that, at any time during any three-month period
ending on December 31, March 31, June 30 or September 30 of any year and
occurring between the date of this Agreement and [CONFIDENTIAL TREATMENT
REQUESTED]/*/ (individually, a "Consulting Period") (i) SACHS fails to perform
consulting services in accord with the demands by EVERGREEN under Article IV of
this Agreement, or (ii) SACHS fails to perform consulting services pursuant to
Article IV in a competent and professional manner consistent with industry
standards, EVERGREEN shall have the right and option (the "Purchase Option") to
purchase from SACHS, for a sum of [CONFIDENTIAL TREATMENT REQUESTED]/*/ per
share, and SACHS shall be required to sell to EVERGREEN at such price,
[CONFIDENTIAL TREATMENT REQUESTED]/*/ shares of Common Stock for each such
Consulting Period in which SACHS fails to perform required consulting services
or fails to perform consulting services in a competent and professional manner
consistent with industry standards, in accordance with Section 2 of the Stock
Restriction Agreement.

          (B)  If EVERGREEN determines at any time that SACHS' failure to
perform required consulting services or SACHS' failure to perform consulting
services in a competent and professional manner consistent with industry
standards is reasonably likely to recur in future Consulting Periods, EVERGREEN,
upon written notice to SACHS, may terminate this Agreement solely with respect
to the provision of future consulting services by SACHS without terminating any
other provisions of this Agreement, in which event SACHS shall be required to
sell to EVERGREEN, at a price of $.01 per share, all shares of Common Stock that
are still subject to the Purchase Option under the Stock Restriction Agreement
with respect to all future

/*/ [CONFIDENTIAL TREATMENT REQUESTED] INDICATES MATERIAL THAT HAS BEEN OMITTED
AND FOR WHICH CONFIDENTIAL TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED
MATERIAL HAS BEEN FILED WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT
TO RULE 406 PROMULGATED UNDER THE SECURITIES ACT OF 1933, AS AMENDED.

                                      -8-
<PAGE>   9

Consulting Periods; provided, however, that in the event that EVERGREEN's
determination that SACHS' failure to perform required consulting services or
SACHS' failure to perform consulting services in a competent and professional
manner consistent with industry standards is reasonably likely to recur in
future Consulting Periods is based on the death or "disability" (as defined in
the Stock Restriction Agreement) of SACHS, the number of shares of Common Stock
then subject to the Purchase Option for all future Consulting Periods shall be
reduced by fifty percent (50%).

               ARTICLE V - REPRESENTATIONS, COVENANTS, WARRANTIES

     5.1  SACHS represents and warrants to the best of his knowledge that he has
complied with all applicable laws with respect to the Licensed Patents and the
Technology.

     5.2  SACHS represents and warrants that, except as is set forth on EXHIBIT
D hereto, he has not previously entered into any material agreements or
contracts of any kind with respect to or affecting the Licensed Patents or the
Technology.

     5.3  SACHS represents and warrants to the best of his knowledge, but
without additional investigation or patent search, that each of the Licensed
Patents which has not lapsed are valid and enforceable, and that the practice of
the inventions set forth in the Licensed Patents do not conflict with, breach or
infringe any patent, copyright, trade secret, or other intellectual property
right of any third party, except for any conflicts which may exist with respect
to the agreements and contracts set forth on Exhibit D hereto.

     5.4  SACHS represents and warrants that he has disclosed or provided to
EVERGREEN all material information, documents, memoranda, notes, correspondence
and all other materials of any kind which are in his possession, or for which he
controls access, or are known by him or should be known by him, relating to any
claims or interests of any kind in and to the Licensed Patents and Technology
(the "Materials"). EXHIBIT E summarizes the Materials.

     5.5  SACHS represents and warrants to the best of his knowledge that there
are no actions, proceedings, litigation or claim of any kind currently pending
or threatened with respect to the Licensed Patents or the Technology, and no
existing grounds for any such claims.

     5.6  SACHS represents and warrants that he has full power and authority to
undertake the obligations set forth in this Agreement, and that by entering into
this Agreement and performing his obligations hereunder he will not violate or
conflict with the terms or provisions of any other agreement to which he is a
party or any other obligation by which he is bound.

                          ARTICLE VI - INDEMNIFICATION

     6.1  Except as limited in Article 6.2, SACHS shall indemnify and hold
EVERGREEN and its stockholders, directors and officers harmless from any and all
claims, actions, liabilities, losses, damages or expenses, including, without
limitation, reasonable attorneys' fees, arising from (i) SACHS' breach of any of
the representations, covenants, and warranties of Article V, or (ii) defaults by
SACHS in making royalty payments to the Department of Energy. SACHS'

                                      -9-
<PAGE>   10

obligations to indemnify EVERGREEN pursuant to this Article shall not survive
the expiration of this Agreement in the ordinary course pursuant to Section 7.1,
but shall survive any earlier termination of this Agreement.

     6.2  SACHS' aggregate liability under Article VI shall be limited to all
royalties paid to or vested in SACHS pursuant to this Agreement, and to any and
all future royalties, EVERGREEN stock and payments paid, owed to, or later
accrued by or vested in SACHS in performance thereof; and EVERGREEN shall have
the choice as to which of such royalties, stock, and payments shall be used as
indemnification or as payment of such liability.

                               ARTICLE VII - TERM

     7.1  The term of this Agreement shall extend until the expiration of all of
the claims of the Licensed Patents which have not lapsed or been determined
invalid or unenforceable by a court of proper jurisdiction in an unappealed and
unappealable decision.

     7.2  Should EVERGREEN fail in its remittance to SACHS of monies due in
accordance with this Agreement, SACHS shall have the right to serve upon
EVERGREEN, by certified mail at the address designated in ARTICLE X hereof,
notice of SACHS' desire to terminate this Agreement. If within thirty (30) days
after EVERGREEN's receipt of such notice, EVERGREEN shall not have paid all such
monies asserted by SACHS to be due and payable, SACHS may institute arbitration
proceedings in accordance with Article VIII of this Agreement seeking
termination of the rights, privileges and license granted hereunder. This
Article 7.2 shall always take precedence over any breach or default referred to
in Article 7.3.

     7.3  Upon any material breach or default of this Agreement by EVERGREEN,
other than those occurrences set out in Article 7.2 hereinabove, SACHS shall
have the right to serve upon EVERGREEN, by certified mail at the address
designated in ARTICLE X hereof, notice of SACHS' desire to terminate this
Agreement. If within sixty (60) days after EVERGREEN's receipt of such notice,
EVERGREEN shall not have cured such breach(es), SACHS may institute arbitration
proceedings in accordance with Article VIII of this Agreement seeking
termination of the rights, privileges and license granted hereunder.

     7.4  In addition to any other remedy available to EVERGREEN under this
Agreement or any applicable law, and without limiting in any respect any of
EVERGREEN'S rights under Section 4.5 of this Agreement and Section 2 of the
Stock Restriction Agreement, including, without limitation, its rights with
respect to the, Purchase Option, in the event of any material breach of SACHS'
warranties, covenants or representations set forth in this Agreement, EVERGREEN
shall have the right to serve upon SACHS by certified mail at the address
designated in ARTICLE X hereof, notice of EVERGREEN's desire to terminate this
Agreement. If, within thirty (30) days after SACHS' receipt of such notice SACHS
shall not have cured all such breaches, EVERGREEN may institute arbitration
proceedings in accordance with Article VIII of this Agreement seeking
termination of the rights, privileges and license granted hereunder. In the
event that this Agreement is terminated pursuant to such arbitration
proceedings, EVERGREEN shall be under no further obligation to pay to SACHS any
future

                                      -10-
<PAGE>   11

consulting payments or royalties whatsoever, and SACHS shall be required to sell
all unvested shares of EVERGREEN Common Stock to EVERGREEN at a price of $.01
per share.

     7.5  Upon termination of this Agreement for any reason, among other things:
(i) nothing herein, except as limited in Section 7.4, shall be construed to
release either party from any obligation that matured prior to the effective
date of such termination, and (ii) EVERGREEN shall assign to SACHS any of
EVERGREEN's right and interest in and to the Licensed Patents. In the event of
any termination, EVERGREEN shall make good faith attempts to provide SACHS with
technology which EVERGREEN does not intend to pursue or market so that SACHS can
independently pursue such technology.

                           ARTICLE VIII - ARBITRATION

     8.1  All claims, disputes or controversies arising under, out of, or in
connection with this Agreement, or any breach thereof, which have not been
resolved by good faith negotiations between the parties, shall be resolved by
final and binding arbitration in Boston, Massachusetts, or such other location
as the parties may mutually agree, under the rules of the American Arbitration
Association then obtaining, and judgment upon the award rendered by the
arbitrator may be entered in any court having jurisdiction thereof, provided,
however, that neither party shall be entitled to an award of punitive damages
pursuant to any arbitration proceeding undertaken pursuant to this Section. The
arbitrators shall have no power to add to, subtract from or modify any of the
terms or conditions of this Agreement.

     8.2  Notwithstanding Section 8.1, nothing in this Article shall be
construed to waive any rights of timely performance of any obligations existing
under this Agreement.

                 ARTICLE IX - PATENT ENFORCEMENT AND MAINTENANCE

     9.1  EVERGREEN shall maintain all patents of the Licensed Patents which
have Valid Claims, except as limited in Article 9.2, and shall have all access
and control of the patent files of the Licensed Patents at a law firm of
EVERGREEN's choosing.

     9.2  EVERGREEN shall have the option to waive rights to any of the Licensed
Patents, and shall provide three months prior written notice to SACHS if it does
not intend to maintain further any of such Licensed Patents, or of any such
maintenance fees, annual tax or other government fees which it does not intend
to timely pay, in order to allow SACHS to decide whether to make such payments
on his own behalf.

     9.3  In the event that either SACHS or EVERGREEN shall become informed of,
or have reason to believe that, any patent included in the Licensed Patents is
being infringed or potentially infringed by any unlicensed third-party, it shall
promptly notify the other party in writing.

     9.4  EVERGREEN shall have the right, but not the obligation, to (i) bring
suit or other necessary and appropriate legal action, including, without
limitation, counterclaims and cross-

                                      -11-
<PAGE>   12

claims (the "Infringement Action"), at EVERGREEN's own expense, joining SACHS as
a party if necessary or desirable, to terminate or prevent the infringement or
potential infringement of any patent included in the Licensed Patents, and (ii)
to negotiate with the alleged infringer (the "Infringement Negotiation") and to
effect such settlement consistent with the terms of this Agreement as EVERGREEN
may deem proper. All proceeds of any award, settlement or judgment resulting
from such Infringement Action or Infringement Negotiation (the "Recovery") shall
be divided between EVERGREEN and SACHS as follows: EVERGREEN shall receive the
aggregate amount of the Recovery, and shall pay to SACHS from such Recovery the
amount that is equal to the royalties, if any, that SACHS would have received
under this Agreement for sales of EVERGREEN products of similar type and in
equivalent amounts to the sales of the infringing or allegedly infringing
products from which the Recovery was derived. SACHS agrees to cooperate fully
with EVERGREEN in providing documentation, witnesses and any other assistance
reasonably required to bring about a favorable result with respect to any
Infringement Action or Infringement Negotiation, and shall be paid by EVERGREEN
for such cooperation at a rate equal to the consulting rate set forth in this
Agreement. SACHS shall be kept fully informed by EVERGREEN or its
representatives of all legal actions taken by EVERGREEN in connection with any
Infringement Action or Infringement Negotiation. SACHS may be represented at any
such legal proceedings by counsel selected and retained by SACHS at his sole
direction and expense.

     9.5  EVERGREEN shall defend, at EVERGREEN's own expense, except as provided
for in Article 6.1, and joining SACHS as a party if necessary or desirable, all
suits and legal actions arising from the use, development, manufacture, and sale
of the Technology; and EVERGREEN shall have the right to negotiate with the
opposing party, and to effect such settlement consistent with the terms of this
Agreement, as EVERGREEN may deem proper. SACHS agrees to cooperate fully with
EVERGREEN in providing documentation, witnesses and any other assistance
reasonably required to bring about a favorable result and shall be paid by
EVERGREEN for such cooperation at a rate equal to the consulting rate set forth
in this Agreement; and SACHS shall be kept fully informed by EVERGREEN or its
representatives of all such legal proceedings taken by EVERGREEN. SACHS may be
represented at such legal proceedings by counsel selected and retained by SACHS
at his sole direction and expense.

     9.6  EVERGREEN shall have the right, but not the obligation, to file
additional patent applications describing and claiming the Technology which
EVERGREEN, in its sole discretion shall deem reasonably necessary to protect its
rights, through an attorney of EVERGREEN's choosing, and in such event shall
assume the timely payment of any and all maintenance fees, annual taxes or other
government fees assessed as a condition of keeping such patent applications in
full force and effect. In the event that SACHS is an inventor on such patent
applications, EVERGREEN agrees to give SACHS three months prior written notice
if it does not intend to prosecute or maintain further any of such patent
applications, or of any such maintenance fees, annual tax or other government
fees which it does not intend to timely pay, in order to allow SACHS to decide
whether to make such payment on his own behalf.

                         ARTICLE X - GENERAL PROVISIONS

                                      -12-
<PAGE>   13

     10.1 The relationship of SACHS to EVERGREEN shall be that of an independent
contractor; SACHS shall not be considered to have the status of an agent or
employee under this Agreement, and shall not be entitled to participate in any
benefits provided by EVERGREEN to its employees. SACHS shall have no authority
to act for EVERGREEN or to bind it in any manner or thing, and shall not
represent to any person or business entity that he has such authority. Nothing
herein shall be construed to create any partnership, joint venture or similar
relationship, or to subject the parties to any implied duties or obligations
respecting the conduct of their affairs which are not expressly stated herein.

     10.2 EVERGREEN shall keep full accurate books of account containing all
particulars that may be necessary for the purpose of showing the royalties
payable to SACHS under this Agreement as aforesaid, including, without
limitation, records of the manufacture, sale and use of any Wafers, Cells,
Modules, Integrated Products or Other Products by Evergreen and any of its
sublicensees. The books and the supporting data shall be kept at EVERGREEN's
principal place of business, and the books and the supporting data shall be open
at a reasonable time, once per year, for three (3) years following the end of
the calendar year to which they pertain, to the inspection of SACHS and/or an
independent certified public accountant retained or employed by SACHS and
reasonably acceptable to EVERGREEN, for the purpose of verifying EVERGREEN's
royalty statement or compliance in other respects with this Agreement. Auditing
of EVERGREEN's books and supporting data by a representative of SACHS can occur
during normal business hours upon fourteen (14) days' written request. All fees
and expenses associated with any such audit shall be the sole responsibility of
SACHS, except that if the results of an audit show a discrepancy in favor of the
SACHS of more than five percent (5%) of the amount owed, all reasonable audit
costs shall be borne in full by EVERGREEN.

     10.3 SACHS acknowledges and understands that EVERGREEN may become engaged
in the development of additional products which may be competitive with Wafers,
Cells, Modules, Integrated Products and Other Products; that EVERGREEN shall not
be restricted in any manner from pursuing the development of such competitive
products; that SACHS shall have no right to receive any compensation or
royalties with respect to EVERGREEN's revenues therefrom, so long as the making,
use, and sale of such products do not fall within the scope of any of the Valid
Claims of the Licensed Patents.

     10.4 This Agreement shall be governed by and interpreted in accordance with
the laws of the Commonwealth of Massachusetts, exclusive of the choice of law
rules thereof, as if therein wholly to be performed, except that questions
affecting the construction and effect of any foreign patent shall be determined
by the law of the country in which the patent was granted. Nothing in this
Article shall preclude either party from seeking preliminary or temporary
injunctive relief from a court of competent jurisdiction.

     10.5 EVERGREEN may assign or otherwise transfer this Agreement, and the
license granted hereby and the rights and obligations acquired hereunder,
including, without limitation, such transfers caused (i) by operation of a
merger of EVERGREEN with another company, or (ii) by the sale or liquidation of
EVERGREEN's stock or assets, or (iii) by the transfer of an interest in this
Agreement pursuant to a security agreement delivered by EVERGREEN with respect
to

                                      -13-
<PAGE>   14

its rights under this Agreement, without the prior consent of SACHS, so long as
the assignee or transferee shall agree to the terms and conditions of this
Agreement.

     10.6 Notices or other communications provided for in this Agreement shall
be given in writing and shall be deemed effective on the date sent if sent to a
party hereto by personal delivery, certified or first class mail, postage
pre-paid, electronic facsimile transmission, or express overnight courier
service, addressed to the party at its address below (or at another address as
either party shall designate by written notice given to the other party):

          In the case of SACHS:
          Emanuel M. Sachs
          [CONFIDENTIAL TREATMENT REQUESTED]/*/
          [CONFIDENTIAL TREATMENT REQUESTED]/*/

          In the case of EVERGREEN:
          Evergreen Solar, Inc.
          76 Ten Hills Road
          Somerville, Massachusetts 02145

     10.7 The parties hereto acknowledge that this Agreement sets forth the
entire Agreement and understanding of the parties hereto as to the subject
matter hereof, and shall not be subject to any change or modification except by
the execution of a written instrument subscribed to by the parties hereto.

     10.8 The provisions of this Agreement are severable, and in the event that
any provision of this Agreement shall be determined to be invalid or
unenforceable under any controlling body of law, such invalidity or
unenforceability shall not in any way affect the validity or enforceability of
any remaining provisions hereof.

     10.9 In the event that any portion of this Agreement shall be reformed
under any controlling body of law, such reformation shall not affect any other
portion of the Agreement and the parties hereto agree to enforce all such other
portions to the maximum extent possible.

     10.10 The failure of either party to assert a right hereunder or to insist
upon compliance with any term or condition of this Agreement shall not
constitute a waiver of that right or excuse a similar subsequent failure to
perform any such term or condition by the other party.

     10.11 Until March 31, 1998, SACHS shall engage in no activity or ownership
which conflicts with any interest of EVERGREEN associated with the making, using
or selling of technology under the Licensed Patents. After March 31, 1998, for
the term of this Agreement, SACHS shall disclose to EVERGREEN, and EVERGREEN
shall have the option to license or purchase from SACHS, any intellectual
property rights owned by SACHS and related to the Licensed Patents or the
Technology but not covered by this Agreement, which option to license or
purchase shall be exercisable by EVERGREEN by written notice to SACHS within six
(6) months after EVERGREEN's receipt of notice of such intellectual property,
and shall be granted

/*/ [CONFIDENTIAL TREATMENT REQUESTED] INDICATES MATERIAL THAT HAS BEEN OMITTED
AND FOR WHICH CONFIDENTIAL TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED
MATERIAL HAS BEEN FILED WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO
RULE 406 PROMULGATED UNDER THE SECURITIES ACT OF 1933, AS AMENDED.

                                      -14-
<PAGE>   15

upon such reasonable terms and conditions as are determined by the parties
through good faith negotiations undertaken after EVERGREEN's exercise of the
option. The option granted to EVERGREEN pursuant to this Section shall be prior
and superior to any rights in such intellectual property held or claimed by any
party other than SACHS, and SACHS shall not sell, license, assign or otherwise
encumber such intellectual property rights to any party other than EVERGREEN
unless (i) EVERGREEN notifies SACHS in writing of its decision not to exercise
its option to such intellectual property rights or (ii) EVERGREEN does not elect
to exercise its option to the intellectual property rights within the six-month
exercise period described in the immediately preceding sentence.

     10.12 All products sold by EVERGREEN which encompass technology or
inventions covered by one or more of the Licensed Patents shall be marked with
the patent numbers of such Licensed Patents.

     10.13 (A) SACHS hereby covenants to (i) maintain all EVERGREEN Confidential
Information in confidence and not disclose same to any third party unless
expressly authorized in writing by EVERGREEN or required to do so by court order
or by law, in which case SACHS shall notify EVERGREEN in writing prior to making
such disclosure; (ii) not use any EVERGREEN Confidential Information for his own
benefit or for the benefit of any third party; and (iii) return all EVERGREEN
Confidential Information to EVERGREEN, including all copies, summaries and
extracts thereof, upon completion of assessment of the same for the purpose set
forth above, or upon termination of this Agreement, or sooner, if requested, and
shall, if requested by EVERGREEN, execute a certificate warranting that all such
Proprietary Information has been returned to EVERGREEN in accordance with this
Agreement.

           (B)  EVERGREEN hereby covenants to (i) maintain all SACHS
                Confidential Information in confidence and not disclose same to
                any third party unless expressly authorized in writing by SACHS
                or required to do so by court order or by law, in which case
                EVERGREEN shall notify SACHS in writing prior to making such
                disclosure; (ii) not use any SACHS Confidential Information for
                its own benefit or for the benefit of any third party; and (iii)
                return all SACHS Confidential Information to SACHS, including
                all copies, summaries and extracts thereof, upon completion of
                assessment of the same for the purpose set forth above, or upon
                termination of this Agreement, or sooner, if requested, and
                shall, if requested by SACHS, execute a certificate warranting
                that all such Proprietary Information has been returned to SACHS
                in accordance with this Agreement.

     10.14 The parties hereto shall comply in all respects with all applicable
laws.

                                      -15-
<PAGE>   16

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date first above written.

                                      EVERGREEN SOLAR, INC.

                                      BY: /s/ Mark Farber
                                         ------------------------------
                                          Mark Farber, President

                                      BY: /s/ Emanuel M. Sachs
                                         ------------------------------
                                          Emanuel M. Sachs

                                      -16-
<PAGE>   17

                                    EXHIBIT A

                                LICENSED PATENTS

     U.S. Patent No. 4,689,109, entitled "String Stabilized Ribbon Growth a
Method for Seeding Same," and any U.S. patent application, and foreign patents
and patent applications based thereon.

     U.S. Patent No. 4,661,200, entitled "String Stabilized ribbon Growth; Solar
Cell Substrates," and any U.S. patent application, and foreign patents and
patent applications based thereon.

     U.S. Patent No. 4,627,887, entitled "Melt Dumping in String Stabilized
Ribbon Growth; Crystallization," and any U.S. patent application, and foreign
patents and patent applications based thereon.

     U.S. Patent No. 4,594,229, entitled "Apparatus for Melt Growth of
Crystalline Semiconductor Sheets," and any U.S. patent application, and foreign
patents and patent applications based thereon.

     Great Britain Patent No. 2135595. (Lapsed)
     Great Britain Patent No. 2135594. (Lapsed)
     Great Britain Patent No. 2067920. (Lapsed)
     Japanese Patent No. 90036560. (Lapsed)
     French Patent No. 2473072. (Lapsed)
     German Patent No. 3100245. (Lapsed)
     Israeli Patent No. 61852.
     Canadian Patent No. 1169336.
     Italian Patent No. 1143254. (Lapsed)
     Japanese Patent No. 56125297. (Lapsed)

<PAGE>   18

                                    EXHIBIT B

                                Minimum Royalties
                                -----------------
<TABLE>
<CAPTION>
          Measurement Year                                      Minimum Royalty
          ----------------                                      ---------------

<S>                                                 <C>
[CONFIDENTIAL TREATMENT REQUESTED] /*/              [CONFIDENTIAL TREATMENT REQUESTED] /*/
[CONFIDENTIAL TREATMENT REQUESTED] /*/              [CONFIDENTIAL TREATMENT REQUESTED] /*/
[CONFIDENTIAL TREATMENT REQUESTED] /*/              [CONFIDENTIAL TREATMENT REQUESTED] /*/
[CONFIDENTIAL TREATMENT REQUESTED] /*/              [CONFIDENTIAL TREATMENT REQUESTED] /*/
[CONFIDENTIAL TREATMENT REQUESTED] /*/              [CONFIDENTIAL TREATMENT REQUESTED] /*/

</TABLE>

/*/ [CONFIDENTIAL TREATMENT REQUESTED] INDICATES MATERIAL THAT HAS BEEN OMITTED
AND FOR WHICH CONFIDENTIAL TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED
MATERIAL HAS BEEN FILED WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO
RULE 406 PROMULGATED UNDER THE SECURITIES ACT OF 1933, AS AMENDED.

<PAGE>   19
                                   EXHIBIT C

                           STOCK RESTRICTION AGREEMENT

         AGREEMENT made as of the 30th day of September, 1994, between Evergreen
Solar, Inc., a Delaware  corporation (the "Company"),  and Emanuel M. Sachs (the
"Consultant").

                                   WITNESSETH:

         WHEREAS, contemporaneously herewith, the Company and the Consultant
have entered into a license and consulting Agreement (the "Consulting
Agreement");

         WHEREAS, in connection with the consulting services to be provided by
the Consultant to the Company pursuant to the Consulting Agreement (the
"Consulting Services"), the Company has previously issued and sold to the
Consultant, and the Consultant has purchased from the Company, [CONFIDENTIAL
TREATMENT REQUESTED]/*/ shares (the "Shares") of common stock, $.01 par value,
of the Company ("Common Stock"), at a purchase price of [CONFIDENTIAL TREATMENT
REQUESTED]/*/ per share;

         WHEREAS, a condition of the sale of the Shares is the execution and
delivery of this Agreement by the Consultant.

         NOW, THEREFORE, for valuable consideration, the receipt and sufficiency
of which are acknowledged, the parties hereto agree as follows:

         1. Restrictions. The Consultant agrees that the Shares shall be subject
to the Purchase Option and other rights and obligations set forth in Section 2
of this Agreement and the restrictions on transfer set forth in Section 4 of
this Agreement and shall otherwise be subject to the terms and conditions set
forth herein.

         2.       Purchase Option.

                  (a) In the event that, at any time during any three-month
period ending on December 31, March 31, June 30 or September 30 of any year and
occurring between the date of this Agreement and [CONFIDENTIAL TREATMENT
REQUESTED]/*/ (each such three-month period is sometimes individually referred
to hereinafter as a "Consulting Period"), (i) the Consultant fails to perform
Consulting Services in accordance with the request of Evergreen pursuant to
Article IV of the Consulting Agreement, or (ii) the Consultant fails to perform
Consulting Services in a competent and professional manner consistent with
industry standards, the Company shall have the right and option (the "Purchase
Option") to purchase from the Consultant, at a price of [CONFIDENTIAL TREATMENT
REQUESTED]/*/ per share (the "Option Price"), [CONFIDENTIAL TREATMENT
REQUESTED]/*/ Shares of Common Stock of the Company for each such Consulting
Period that the Consultant fails to perform required Consulting Services or
fails to perform Consulting Services in a competent and professional manner
consistent with industry standards.

                  (b) If the Company determines at any time that the
Consultant's failure to perform required Consulting Services or the Consultant's
failure to perform Consulting Services in a competent and professional manner
consistent with industry standards is reasonably likely to recur in future
Consulting Periods, the Company, upon written notice to the Consultant, may

/*/ [CONFIDENTIAL TREATMENT REQUESTED] INDICATES MATERIAL THAT HAS BEEN OMITTED
AND FOR WHICH CONFIDENTIAL TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED
MATERIAL HAS BEEN FILED WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO
RULE 406 PROMULGATED UNDER THE SECURITIES ACT OF 1933, AS AMENDED.

<PAGE>   20
                                      -2-

terminate the Consulting Agreement solely with respect to the provision of
future Consulting Services by the Consultant without terminating any other
provisions of the Consulting Agreement, in which event the Consultant shall be
required to sell to the Company, at a price of [CONFIDENTIAL TREATMENT
REQUESTED]/*/ per share all Shares of Common Stock that are still subject to the
Purchase option under this Agreement with respect to all future Consulting
Periods; provided, however, that in the event that the Company's determination
that the Consultant's failure to provide required Consulting Services or the
Consultant's failure to perform Consulting Services in a competent and
professional manner consistent with industry standards is reasonably likely to
recur in future Consulting Periods is based on the death or disability of the
Consultant, the number of Shares then subject to the Purchase Option for all
future Consulting Periods shall be reduced by fifty percent (50%). As used in
the immediately preceding sentence, "disability" shall mean the inability of the
Consultant, due to a medical reason, to carry out his duties as a consultant for
the Company for a period of six consecutive months.

                  (c) In addition to and without limiting any other rights
available to the Company under this Agreement or any applicable law, including,
without limitation, the Company's rights under Section 2 with respect to the
Purchase Option, in accordance with Section 7.4 of the Consulting Agreement, in
the event of any material breach by the Consultant of any of the warranties,
covenants or representations set forth in the Consulting Agreement, the Company
shall have the right to serve upon the Consultant by certified mail at the
address designated herein notice of the Company's desire to terminate the
Consulting Agreement. If, within thirty (30) days after the Consultant's receipt
of such notice the Consultant shall not have cured all such breaches, the
Company may institute arbitration proceedings in accordance with Article VIII of
the Consulting Agreement, seeking termination of the rights, privileges and
license granted thereunder. In the event that this Agreement is terminated
pursuant to such arbitration proceedings, the Company shall be under no further
obligation to pay to the Consultant any future consulting payments or royalties
whatsoever, and the Consultant shall be required to sell shares of Common Stock
which are still subject to the Purchase Option under this Agreement with respect
to future Consulting Periods to the Company at a price of [CONFIDENTIAL
TREATMENT REQUESTED]/*/ per share.

                  (d) The failure of the Company with respect to any one or more
Consulting Periods in which the Consultant fails to provide required Consulting
Services or fails to perform Consulting Services in a competent and professional
manner consistent with industry standards to exercise the Purchase Option
pursuant to this Section 2 of this Agreement so as to require the Consultant to
sell Shares of Common Stock to the Company, shall not preclude the Company from
exercising the Purchase Option at any time during any one or more future
Consulting Periods.

         3. Exercise of Purchase Option, other Share Purchases and Closing.

                  (a) The Company may exercise the Purchase Option in accordance
with Section 2 of this Agreement during any one or more Consulting Periods by
delivering or mailing to the Consultant (or his estate), in accordance with
Section 13, written notice of exercise within 30 days after the conclusion of
the applicable Consulting Period.

/*/ [CONFIDENTIAL TREATMENT REQUESTED] INDICATES MATERIAL THAT HAS BEEN OMITTED
AND FOR WHICH CONFIDENTIAL TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED
MATERIAL HAS BEEN FILED WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO
RULE 406 PROMULGATED UNDER THE SECURITIES ACT OF 1933, AS AMENDED.

<PAGE>   21
                                      -3-

                  (b) Within 10 days after the Consultant's receipt from the
Company of a notice of exercise of Purchase Option pursuant to Section 2 above,
the Consultant (or his estate) shall tender to the Company at its principal
offices the certificate or certificates representing the Shares to be purchased,
duly endorsed in blank by the Consultant or with duly endorsed stock powers
attached thereto, all in form suitable for the transfer of Shares to the
Company. The Company shall, upon its receipt of such Shares, deliver or mail to
the Consultant a check in the amount of the aggregate Option Price therefor.

                  (c) After any date or dates on which any Shares are required
to be sold and delivered to the Company pursuant to Section 2 above, the Company
shall not pay any dividend to the Consultant on account of such Shares or permit
the Consultant to exercise any of the privileges or rights of a stockholder with
respect to such Shares.

                  (d) The Option Price and any other purchase price under
Section 2 may be payable, at the option of the Company, in cancellation of all
or a portion of any outstanding indebtedness of the Consultant to the Company or
in cash (by check), or both.

                  (e) The Company shall not purchase any fraction of a Share
upon exercise of the Purchase Option during any one or more Consulting Periods,
and any fraction of a Share resulting from a computation made pursuant to
Section 2 of this Agreement shall be rounded to the nearest whole Share (with
any one-half Share being rounded upward).

         4.       Restrictions on Transfer.

                  (a) Unvested Shares. Except as otherwise specified in
subjection 4(c) below, the Consultant shall not, during the term of the Purchase
Option, sell, assign, transfer, pledge, hypothecate or otherwise dispose of, by
operation of law or otherwise (collectively "transfer"), any of the Shares, or
any interest therein, unless and until such Shares are no longer subject to the
Purchase Option.

                  (b) Vested Shares; Right of First Refusal. Except as otherwise
specified in subjection 4(c) below, the Consultant shall not transfer any of the
Shares no longer subject to the Purchase Option, or any interest therein, except
by a transfer which meets the following requirements:

                           (i) If the  Consultant  proposes to transfer any such
Shares (the  "Offered  Shares"),  then the  Consultant  shall first give written
notice of the proposed  transfer  (the  "Transfer  Notice") to the Company.  The
Transfer  Notice  shall  name the  proposed  transferee  and state the number of
Offered Shares,  the price per share and all other material terms and conditions
of the transfer.

                           (ii) The Company shall have the right, exercisable by
written  notice to the  Consultant,  within  forty-five  [45] days following the
Company's  receipt of Transfer Notice,  to purchase all but not less than all of
the Offered Shares at a purchase price equal to the price per share set forth in
the Transfer Notice.
<PAGE>   22
                                      -4-

                           (iii) If the Company  elects to acquire  all, but not
less than all, of the Offered Shares, the Company shall so notify the Consultant
and  settlement  shall be made at the  principal  office of the  Company in cash
within ninety [90] days after the Company receives the Transfer Notice; provided
that if the terms of payment  set forth in the  Transfer  Notice were other than
cash against delivery,  the Company shall pay for the Offered Shares on the same
terms and conditions set forth in the Transfer Notice.

                           (iv) If the Company  does not elect to acquire all of
the Offered Shares,  the Consultant may, within the 90-day period  following the
termination of the Company's option to acquire the Offered Shares,  transfer the
Offered Shares to the proposed transferee or any other purchaser,  provided that
such sale shall not be on terms and  conditions  more  favorable to the purchase
than  those  contained  in  the  Transfer  Notice.  Notwithstanding  any  of the
foregoing, all Offered Shares transferred pursuant to this subsection 4(b) shall
be subject to the provisions of this  subsection  4(b) in the same manner and to
the same extent as before such transfer.

                  (c) The  following  transactions  shall  be  exempt  from  the
provisions of this Section 4:

                           (i) The  Consultant's  transfer  of any or all of his
shares  either during his lifetime or upon his death by will or intestacy to his
immediate family or to a trust the beneficiaries of which are exclusively one or
more of the  Consultant  and a member or members of the  Consultant's  immediate
family,  except any such  transfers  made  pursuant to any divorce or separation
proceedings  or  settlement.  As used  in the  immediately  preceding  sentence,
"Immediate family" shall mean spouse, lineal descendant, father, mother, brother
or sister of the shareholder making the transfer; or

                           (ii) A transfer to the guardian or conservator of the
Consultant;

provided, however, that in any such case, the transferee or other recipient
shall receive and hold such stock subject to the provisions of this Agreement,
and there shall be no further transfer of such stock except in accordance with
this Agreement.

                  (d) Any sale or transfer, or purported sale or transfer, of
Shares shall be null and void unless the terms, conditions and provisions of
this Section 4 are strictly observed and followed.

                  (e) The rights of first refusal set forth in this Section 4
shall terminate upon either of the following dates, whichever shall first occur:

                           (i) Upon the  closing of the first  bona fide  firmly
underwritten  public  offering of  securities  of the Company  which is effected
pursuant to a registration  statement filed with, and declared effective by, the
Securities and Exchange  Commission under the Securities Act of 1933, as amended
(other than an offering registered on Form S-4, Form S-8 or any successor forms)
that results in net proceeds to the Company (aggregate sales price to the public
less underwriters' discounts) of at least $15,000,000 with a net sales price per
share (gross sales
<PAGE>   23
                                      -5-

price per share to the public  less  underwriters'  discounts)  of not less than
$10.00 (as adjusted for stock  splits,  stock  dividends,  recapitalization  and
similar events); or

                           (ii) upon the sale of all or substantially all of the
shares or business of the Company, by merger,  consolidation,  sale of assets or
otherwise.

                  (f) The rights of first refusal set forth in this Section 4
may be transferred by the Company without the consent of the Consultant or any
transferee of Shares from the Consultant.

         5. Lock-Up Agreement. The Consultant agrees that in connection with an
underwritten public offering of Common Stock, upon the request of the Company or
the principal underwriter managing such public offering, the Shares may not be
sold, offered for sale or otherwise disposed of without the prior written
consent of the Company or such underwriter, as the case may be, for at least 270
days or such longer period of time as the Board of Directors of the Company may
determine; provided, however, that the Consultant shall only be bound for such
period as all of the Company's directors and officers also agree to be bound.

         6. Restrictive  Legend. All certificates  representing the Shares shall
have affixed thereto a legend in  substantially  the following form, in addition
to any other  legends  that may be required  under  federal or state  securities
laws:

                  "The shares of stock represented by this certificate are
                  subject to restrictions set forth in a certain Stock
                  Restriction Agreement between the corporation and the
                  registered owner of these shares (or his predecessor in
                  interest), and such Agreement is available for inspection
                  without charge at the office of the Secretary of the
                  corporation."

         7. Adjustments for Stock Splits, Stock Dividends, etc.

                           (a) If from time to time while the Shares are subject
to the Purchase Option or restrictions on transfer set forth herein there is any
stock split-up,  stock dividend, stock distribution or other reclassification of
the Common  Stock of the Company,  any and all new,  substituted  or  additional
securities to which the Consultant is entitled by reason of his ownership of the
Shares shall be immediately  subject to such Purchase Option and restrictions on
transfer  in the same  manner and to the same extent as the Shares and the price
payable  to the  Consultant  upon  exercise  of the  Purchase  Option  shall  be
appropriately adjusted.

                           (b) If the Shares  are  converted  into or  exchanged
for, or  stockholders  of the Company  receive by reason of any  distribution in
total or  partial  liquidation,  securities  of  another  corporation,  or other
property (including cash),  pursuant to any merger of the Company or acquisition
of its assets,  then the rights of the Company under this Agreement  shall inure
to the benefit of the Company's  successor and this Agreement shall apply to the
securities  or  other  property  received  upon  such  conversion,  exchange  or
distribution in the same manner and to the same extent as the Shares.
<PAGE>   24
                                      -6-

         8. Spousal  Consent.  If requested  by the Company,  this  Agreement is
being  delivered  by the  Consultant  along  with a Spousal  Consent in the form
attached hereto as Exhibit 1, executed by the Consultant's spouse.

         9. Severability.  This invalidity or  unenforceability of any provision
of this Agreement shall not affect the validity or  enforceability  of any other
provision of this Agreement, and each other provision of this Agreement shall be
severable and enforceable to the extent permitted by law.

         10. Waiver;  Amendment.  No provision of this Agreement shall be waived
or amended, either generally or in any particular instance,  except in a writing
signed by the Company and the Consultant.

         11. Binding  Effect.  This Agreement shall be binding upon and inure to
the  benefit of the  Company  and the  Consultant  and their  respective  heirs,
executors,  administrators,  legal  representative,  successors and assigns.  No
transfer of any of the Shares shall be  effective  unless the  transferee  first
agrees in writing to all of the terms hereof.

         12. No Rights To Employment.  Nothing contained in this Agreement shall
be construed as giving the Consultant any right to be retained, in any position,
as an employee of the Company.

         13. Notice. All notices required or permitted hereunder shall be in
writing and deemed effectively given upon personal delivery by Federal Express
or other recognized overnight delivery service or upon deposit in the United
States Post Office, by registered or certified mail, postage prepaid, return
receipt requested, addressed to the other party hereto at the address shown
beneath his or its representative signature to this Agreement, or at such other
address or addresses as either party shall designate to the other in accordance
with this Section 13.

         14.  Pronouns.  Whenever the context may require,  any pronouns used in
this Agreement  shall include the  corresponding  masculine,  feminine or neuter
forms, and the singular form of nouns and pronouns shall include the plural, and
vice versa.

         15. Entire Agreement.  This Agreement  constitutes the entire agreement
between the parties,  and  supersedes all prior  agreements and  understandings,
relating to the subject matter of this Agreement.

         16.  Governing Law. This Agreement shall be construed,  interpreted and
enforced in accordance with the laws of the State of Delaware.
<PAGE>   25
                                      -7-

         IN WITNESS WHEREOF, the parties hereto have executed this Agreement as
of the day and year first above written.

                              EVERGREEN SOLAR, INC.

                              By: ________________________________________

                              Address:

                              CONSULTANT

                              ____________________________________________

                              Address:
<PAGE>   26

                                    EXHIBIT D

                            AGREEMENTS AND CONTRACTS

     1.   Agreement, dated March 1, 1980, between SACHS and Arthur D. Little,
Inc. ("Little"), as amended by a letter agreement dated November 20, 1987, and
termination letter from SACHS to Little, dated September 12, 1994.

     2.   Settlement Agreement, dated October 17, 1983, among Theodore F.
Ciszek, Jeffery L. Hurd, SACHS, Little and the United States Department of
Energy.

     3.   Agreement, dated July 8, 1985, between Solarex Corporation
("Solarex"), SACHS and Little, and termination letter from Solarex to Little and
SACHS, dated March 12,1986.

     4.   Contract no. XW-1-1069-1 and contract no. ZB-3-03009-1, each between
Little and the United States Department of Energy, and associated patent waiver
documents.

     5.   Memorandum of Agreement, dated June 6, 1977, between SACHS and Mobil
Tyco Solar Energy Corporation.

     6.   Treatment of Confidential Information, dated June 6, 1977, between
SACHS and Mobil Tyco Solar Energy Corporation.

     7.   Acknowledgment of obligations with respect to the treatment of
confidential information of Mobil Tyco Solar Energy Corporation, dated June 6,
1977, executed by SACHS.

     8.   Consultant's Agreement, dated August 1, 1979, between SACHS and Mobil
Tyco Solar Energy Corporation.

     9.   Consulting letter agreement, dated March 4, 1980, between SACHS and
Little, as renewed, amended and/or clarified by subsequent letter agreements
dated March 2, 1981, February 18, 1982, January 18, 1983, July 13, 1983, May 22,
1984, June 4, 1984, July 24, 1985, October 15, 1985, January 21, 1986 and
September 4, 1986.

<PAGE>   27

                                    EXHIBIT E
            SUMMARY OF MATERIAL DOCUMENTS, MEMORANDA AND INFORMATION

                                                                         Box # 1
                                                                         -------

                                  SACHS' FILES

<TABLE>
<CAPTION>
  File No.                          Description
  -------                           -----------

<S>            <C>
1.1            Interference: Dermatis background and negotiations.

1.2            Interference: Dermatis file wrapper.

1.3            Interference: Motions, decisions.

               Note: 1.1 and 1.2 discuss the Dermatis interference wherein
               Dermatis apparently in the end decided to drop any interference
               (besides the assertions that the two patents were substantially
               different, Dermatis was actually charged with fraud). 1.3 shows that
               Ciszek joined in what became a 3-way interference until Dermatis
               dropped out.

1.4            Interference: Prior art, patents and literature.

1.5            A NASA tech. brief - no label on this folder.

1.6            Interference:  Sachs proofs and tech. memos - contains a memo by Sachs on
                              the difference between ESR and web growth and an affidavit
                              by Prof. D. Adler that Sachs discussed this idea on or
                              before July 11, 1979.

1.7            Interference:  Declaration, correspondence, preliminary statement,
                              correspondence re: Dermatis and Ciszek interference.

1.8            Interference:  Sachs vs. Ciszek - some notes from Surek (includes notes re:
                              Surek's earlier conversations), a memo of the chronology.

1.9            Interference:  Motions, Sachs vs. Ciszek - Sachs suggests fraud because SERI
                              had confidential information on ESR before SERI filed.

1.10           Interference:  SERI, lit, etc. - excellent collection of Ciszek papers on edge
                              supported growth.

1.11           Interference:  Ciszek file wrapper.
</TABLE>

<PAGE>   28

<TABLE>
<CAPTION>

<S>            <C>
1.12           Interference:  Settlement includes copy of final settlement document with
                              signatures. Confidential memo from Surek to his superiors.
                              Contains a copy of EXHIBIT A in the settlement agreement.

1.13           Further notes on Ciszek interference.

1.14           General correspondence on the interference - letters from Pandiscio
               requesting copies of the interference (apparently initially denied), notes
               from Sachs' notebook, letter indicating the Ciszek interference is
               dissolved. Incomplete record of Mobil inquiry.

1.15           Exhibits for the Sachs-Ciszek interference - the original SERI REP, the
               ADL/SACHS PROPOSAL, copies of the Ciszek papers.

1.16           Ciszek vs. Sachs, Interference #100,758 - look like the original
               documents - Ciszek's oppositions to Sachs motions.

1.17           Ciszek vs. Sachs, Interference #100,758 - look like the original
               documents - Sachs Response to the oppositions of the Party Ciszek et
               al.

1.18           Application and progress reports from Sachs to Hertz Foundation in
               1979. Indicates Sachs' first PV research interest was bulk silicon
               slicing.

                                                                                             Box # 2
                                                                                             -------

2.1            Patent communications - background on patents in general and on film
               processor patent (not included in Evergreen license).

2.2            Sachs patents issued - copy of U.K. patent "String Stabilized Ribbon Growth
               of Crystals" - No. 2,067,920A.

2.3            Solar Patent #1 - Correspondence of the patent office in the basic patent
               No. 4,661,200 - original and copies of the patent letter explaining that
               Sachs is paying for this application himself, that he conceived of the
               idea in the summer of 1979, and that he was a graduate student under
               D. Adler and had to move his experiment to ADL where they had better
               facilities, etc.

2.4            Public laws and government regulations.

2.5            Bills - patent.

2.6            First solar patent search.
</TABLE>

<PAGE>   29

<TABLE>
<CAPTION>

<S>            <C>
2.7            Solar patents - performance value?

2.8            Melt dumping - original patents and data on this patent No. 4,627,887

2.9            Seeding patent - copy - not the original, No. 4,689,109.

2.10           Ciszek Patent - copy of this patent No. 4,594,229, issued 6/10/86.
               Assigned to E.M. Sachs.

2.11           Composite strings - patent application - initially rejected by the patent
               office and decided not to try further on it.

2.12           Diffusion length/laser scanner patent application - apparently rejected.

2.13           SERI/DOE - contains: listing of all patent information re: the
               government and patent status - including Mobil.

2.14           Miscellaneous.

                                                                                             Box # 3
                                                                                             -------

3.1            Presentation.

3.2            Contacts.

3.3            Licensing - business development efforts.

3.4            Licensing - much material on Toshiba interaction, including Toshiba
               option agreement that was never signed.

3.5            Graphics - many useful photos, original ADL brochure.

3.6            SERI - Year 1 - contains a useful report.

3.7            SERI - Year 2 (83) - RFP, proposal, contract.

3.8            SERI - Year 2 - reports to SERI.

3.9            SERI - Patent waiver - Year 2.

3.10           Business plan - ESR Inc.

3.11           SERI - 9/81 - 10/82, patent waiver Year 1.

3.12           SSG - Publicity.

3.13           SERI - 9/81 - 10/82, RFP, proposal, contract, correspondence.
</TABLE>

<PAGE>   30

<TABLE>
<CAPTION>

<S>            <C>
3.14           SERI - correspondence re: publications.

3.15           SERI - patent disclosures re: waiver - important disclosures, including
               storing materials, radiation shields.

3.16           Mislabeled: RFP's, proposals, SERI patent correspondence. Actually
               contains SBIR information for 1983 almost totally.

3.17           JPL Year 3 proposal - letter to Prince, DOE, telling of settling of the
               patent interference issue.

               Note: It is clear that Box 3 does not contain a complete record of the
               SERI patent waivers.
</TABLE>
<PAGE>   31

                       SOME KEY PERSONNEL IN SACHS' FILES

1.   TED CISZEK - Scientist at National Renewable Energy Lab (NREL) [Formerly
     called Solar Energy Research Institute - SERI].

2.   S. DERMATIS - Scientist originally at Westinghouse.

3.   TOM SUREK - Scientist/Manager at NREL for the past 16 years. Prior to that,
     was at Mobil-Tyco (this became Mobil-Solar) for several years.

4.   PROF. DAVID ADLER - Sachs' Ph.D. advisor at MIT.

5.   NICK PANDISCIO Mobil Solar's patent counsel.<PAGE>   1
                                                                    EXHIBIT 10.9

                              EVERGREEN SOLAR, INC.

                                    [FORM OF]

                            INDEMNIFICATION AGREEMENT

         This Indemnification Agreement (the "Agreement") is made as of
_____________________, 2000, by and between Evergreen Solar, Inc., a Delaware
corporation (the "Company"), and ______________________ (the "Indemnitee").

         WHEREAS, the Company and Indemnitee recognize the substantial increase
in corporate litigation in general, subjecting [officers and] directors to
expensive litigation risks;

         WHEREAS, Indemnitee does not regard the current protection available as
adequate under the present circumstances, and Indemnitee and other [officers
and] directors of the Company may not be willing to continue to serve as
[officers and] directors without additional protection; and

         WHEREAS, the Company desires to attract and retain the services of
highly qualified individuals, such as Indemnitee, to serve as [officers and]
directors of the Company and to indemnify its [officers and] directors so as to
provide them with the maximum protection permitted by law.

         WHEREAS, in view of such considerations, the Company desires to
provide, independent from the indemnification to which the Indemnitee is
otherwise entitled by law and under the Company's Charter and By-Laws,
indemnification to the Indemnitee and advances of expenses, all as set forth in
this Agreement to the maximum extent permitted by law;

         NOW, THEREFORE, to induce the Indemnitee to continue to serve the
Company and in consideration of these premises and the mutual agreements set
forth in this Agreement, as well as other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the Company and the
Indemnitee hereby agree as follows:

         1.       INDEMNIFICATION.

                  (a)      THIRD PARTY PROCEEDINGS. The Company shall indemnify
Indemnitee if Indemnitee is or was a party or is threatened to be made a party
to any threatened, pending or completed action or proceeding, whether civil,
criminal, administrative or investigative (other than an action by or in the
right of the Company) by reason of the fact that Indemnitee is or was a
director, officer, employee or agent of the Company, or any subsidiary of the
Company, by reason of any action or inaction on the part of Indemnitee while an
officer or director or by reason of the fact that Indemnitee is or was serving
at the request of the Company as a director, officer, employee or agent of
another corporation, partnership, joint venture, trust or other enterprise,
against expenses (including attorneys' fees), judgments, fines and amounts paid
in settlement (if such settlement is approved in advance by the Company, which
approval shall not be unreasonably withheld) actually and reasonably incurred by
Indemnitee in connection with such action or proceeding if Indemnitee acted in
good faith and in a manner Indemnitee reasonably believed to be in or not
opposed to the best interests of the Company, and, with respect to any criminal
action or proceeding, had no reasonable cause to believe Indemnitee's conduct
was unlawful. The termination of any action or proceeding by judgment, order,
settlement, conviction, or upon a plea of NOLO CONTENDERE or its equivalent,
shall not, of itself, create a presumption that Indemnitee did not act in good
faith and in a manner which Indemnitee reasonably believed to be in or not
opposed to the best interests of the Company, or with respect to any criminal
action or proceeding, that Indemnitee had reasonable cause to believe that
Indemnitee's conduct was unlawful.

<PAGE>   2
                                      -2-

                  (b)      PROCEEDINGS BY OR IN THE RIGHT OF THE COMPANY. The
Company shall indemnify Indemnitee if Indemnitee was or is a party or is
threatened to be made a party to any threatened, pending or completed action or
proceeding by or in the right of the Company or any subsidiary of the Company to
procure a judgment in its favor by reason of the fact that Indemnitee is or was
a director, officer, employee or agent of the Company, or any subsidiary of the
Company, by reason of any action or inaction on the part of Indemnitee while an
officer or director or by reason of the fact that Indemnitee is or was serving
at the request of the Company as a director, officer, employee or agent of
another corporation, partnership, joint venture, trust or other enterprise,
against expenses (including attorneys' fees) and, to the fullest extent
permitted by law, amounts paid in settlement, in each case to the extent
actually and reasonably incurred by Indemnitee in connection with the defense or
settlement of such action or proceeding if Indemnitee acted in good faith and in
a manner Indemnitee reasonably believed to be in or not opposed to the best
interests of the Company and its shareholders, except that no indemnification
shall be made in respect of any claim, issue or matter as to which Indemnitee
shall have been finally adjudicated by court orders or judgment to be liable to
the Company in the performance of Indemnitee's duty to the Company and its
shareholders unless and only to the extent that the Delaware Court of Chancery
or any other court in which such action or proceeding is or was brought shall
determine upon application that, despite the adjudication of liability but in
view of all the circumstances of the case, Indemnitee is fairly and reasonably
entitled to indemnity for such expenses which the Court of Chancery or other
such court shall deem proper.

                  (c)      MANDATORY PAYMENT OF EXPENSES. To the extent that
Indemnitee has been successful on the merits or otherwise in defense of any
action, suit or proceeding referred to in Section 1(a) or Section 1(b) or the
defense of any claim, issue or matter therein, Indemnitee shall be indemnified
against expenses (including attorneys' fees) actually and reasonably incurred by
Indemnitee in connection therewith. Without limiting the foregoing, if any
action, suit or proceeding is disposed of, on the merits or otherwise (including
a disposition without prejudice), without (i) the disposition being adverse to
the Indemnitee, (ii) an adjudication that the Indemnitee was liable to the
Company, (iii) a plea of guilty or NOLO CONTENDERE by the Indemnitee, (iv) an
adjudication that the Indemnitee did not act in good faith and in a manner he
reasonably believed to be in or not opposed to the best interests of the
Company, and (v) with respect to any criminal proceeding, an adjudication that
the Indemnitee had reasonable cause to believe his conduct was unlawful, the
Indemnitee shall be considered for the purpose hereof to have been wholly
successful with respect thereto.

         2.       EXPENSES; INDEMNIFICATION PROCEDURE.

                  (a)      ADVANCEMENT OF EXPENSES. The Company shall advance
all expenses incurred by Indemnitee in connection with the investigation,
defense, settlement or appeal of any civil or criminal action or proceeding
referenced in Section 1(a) or (b) hereof (but not amounts actually paid in
settlement of any such action or proceeding). Indemnitee hereby undertakes to
repay such amounts advanced only if, and to the extent that, it shall ultimately
be determined that Indemnitee is not entitled to be indemnified by the Company
as authorized hereby. The advances to be made hereunder shall be paid by the
Company to Indemnitee within ten (10) days following receipt of an undertaking
(the "Undertaking"), substantially in the form attached hereto as EXHIBIT 1, by
or on behalf of the Indemnitee to repay the amount of any such advance if and to
the extent that it shall ultimately be determined that the Indemnitee is not
entitled to indemnification for such amount. The Undertaking shall be unsecured
and shall bear no interest.

                  (b)      NOTICE/COOPERATION BY INDEMNITEE. Indemnitee shall,
as a condition precedent to his or her right to be indemnified under this
Agreement, give the Company notice in writing as soon as practicable of any
claim made against Indemnitee for which indemnification is or will be sought
under this Agreement. Notice to the Company shall be directed to the Chief
Executive Officer of the Company

<PAGE>   3
                                      -3-

at the address shown on the signature page of this Agreement (or such other
address as the Company shall designate in writing to Indemnitee). Notice shall
be deemed received three (3) business days after the date postmarked if sent by
domestic certified or registered mail, properly addressed; otherwise notice
shall be deemed received when such notice shall actually be received by the
Company. In addition, Indemnitee shall give the Company such information and
cooperation as it may reasonably require and as shall be within Indemnitee's
power.

                  (c)      PROCEDURE. Any indemnification and advances provided
for in Section 1 and this Section 2 shall be made promptly, and in any event
within 60 days after receipt by the Company of the written request of the
Indemnitee, unless with respect to such requests the Company determines, by
clear and convincing evidence, within such 60-day period that the Indemnitee did
not meet the applicable standard of conduct. Such determination shall be made in
each instance by: (a) a majority vote of the directors of the Company who are
not at that time parties to the action, suit or proceeding in question
("disinterested directors"), even though less than a quorum; or (b) a committee
of such disinterested directors designated by majority vote of such
disinterested directors, even though less than a quorum; (c) if there are no
such disinterested directors, or if such disinterested directors so direct, by
independent legal counsel (who may be regular legal counsel to the Company) in a
written opinion, or (d) a majority vote of a quorum of the outstanding shares of
stock of all classes entitled to vote for directors, voting as a single class,
which quorum shall consist of stockholders who are not at that time parties to
the action, suit or proceeding in question. If a claim under this Agreement,
under any statute, or under any provision of the Company's Certificate of
Incorporation or Bylaws providing for indemnification, is not paid in full by
the Company within the time allowed, Indemnitee may, but need not, at any time
thereafter bring an action against the Company to recover the unpaid amount of
the claim and, subject to Section 10 of this Agreement, Indemnitee shall also be
entitled to be paid for the expenses (including attorneys' fees) of bringing
such action. It shall be a defense to any such action (other than an action
brought to enforce a claim for expenses incurred in connection with any action
or proceeding in advance of its final disposition) that Indemnitee has not met
the standards of conduct which make it permissible under applicable law for the
Company to indemnify Indemnitee for the amount claimed, but the burden of
proving such defense shall be on the Company and Indemnitee shall be entitled to
receive interim payments of expenses pursuant to Section 2(a) unless and until
such defense may be finally adjudicated by court order or judgment from which no
further right of appeal exists. It is the parties' intention that if the Company
contests Indemnitee's right to indemnification, the question of Indemnitee's
right to indemnification shall be for the court to decide, and neither the
failure of the Company (including its Board of Directors, any committee or
subgroup of the Board of Directors, independent legal counsel, or its
shareholders) to have made a determination that indemnification of Indemnitee is
proper in the circumstances because Indemnitee has met the applicable standard
of conduct required by applicable law, nor an actual determination by the
Company (including its Board of Directors, any committee or subgroup of the
Board of Directors, independent legal counsel, or its shareholders) that
Indemnitee has not met such applicable standard of conduct, shall create a
presumption that Indemnitee has or has not met the applicable standard of
conduct.

                  (d)      NOTICE TO INSURERS. If, at the time of the receipt of
a notice of a claim pursuant to Section 2(b) hereof, the Company has director
and officer liability insurance in effect, the Company shall give prompt notice
of the commencement of such proceeding to the insurers in accordance with the
procedures set forth in the respective policies. The Company shall thereafter
take all necessary or desirable action to cause such insurers to pay, on behalf
of the Indemnitee, all amounts payable as a result of such proceeding in
accordance with the terms of such policies.

                  (e)      ASSUMPTION OF DEFENSE AND SELECTION OF COUNSEL. In
the event the Company shall be obligated under Section 2(a) hereof to pay the
expenses of any proceeding against Indemnitee,

<PAGE>   4
                                      -4-

the Company, if appropriate, shall be entitled to assume the defense of such
proceeding, with counsel approved by Indemnitee, which approval shall not be
unreasonably withheld, upon the delivery to Indemnitee of written notice of its
election so to do. Notwithstanding the foregoing, the Company shall not be
permitted to settle any action or claim on behalf of Indemnitee in any manner
which would impose any unindemnified liability or penalty on the Indemnitee or
require any acknowledgment of wrongdoing on the part of Indemnitee without
Indemnitee's written consent, which consent shall not be unreasonably withheld.
After delivery of such notice, approval of such counsel by Indemnitee and the
retention of such counsel by the Company, the Company will not be liable to
Indemnitee under this Agreement for any fees of counsel subsequently incurred by
Indemnitee with respect to the same proceeding, provided that (i) Indemnitee
shall have the right to employ his or her counsel in any such proceeding at
Indemnitee's expense; and (ii) if (A) the employment of separate counsel by
Indemnitee has been previously authorized by the Company, (B) Indemnitee shall
have reasonably concluded that there may be a conflict of interest between the
Company and Indemnitee in the conduct of any such defense, or (C) the Company
shall not, in fact, have employed counsel to assume the defense of such
proceeding, then the fees and expenses of Indemnitee's counsel shall be at the
expense of the Company. The Company shall not be entitled, without the consent
of the Indemnitee, to assume the defense of any claim brought by or in the right
of the Company or as to which counsel for the Indemnitee shall have reasonably
made the conclusion provided for in clause (ii)(B) above.

         3.       ADDITIONAL INDEMNIFICATION RIGHTS; NONEXCLUSIVITY.

                  (a)      SCOPE. Notwithstanding any other provision of this
Agreement, the Company hereby agrees to indemnify the Indemnitee to the fullest
extent permitted by law, notwithstanding that such indemnification is not
specifically authorized by the other provisions of this Agreement, the Company's
Certificate of Incorporation, the Company's Bylaws or by statute. In the event
of any change, after the date of this Agreement, in any applicable law, statute,
or rule which expands the right of a Delaware corporation to indemnify a member
of its board of directors or an officer, such changes shall be, ipso facto,
within the purview of Indemnitee's rights and the Company's obligations under
this Agreement. In the event of any change in any applicable law, statute or
rule which narrows the right of a Delaware corporation to indemnify a member of
its Board of Directors or an officer, such changes, to the extent not otherwise
required by such law, statute or rule to be applied to this Agreement shall have
no effect on this Agreement or the parties' rights and obligations hereunder.

                  (b)      NONEXCLUSIVITY. The indemnification provided by this
Agreement shall not be deemed exclusive of any rights to which Indemnitee may be
entitled under the Company's Certificate of Incorporation, its Bylaws, any
agreement, any vote of stockholders or disinterested directors, the Delaware
General Corporation Law ("DGCL"), or otherwise, both as to action in
Indemnitee's official capacity and as to action in another capacity while
holding such office. The indemnification provided under this Agreement shall
continue as to Indemnitee for any action taken or not taken while serving in an
indemnified capacity even though he or she may have ceased to serve in any such
capacity at the time of any action, suit or other covered proceeding.

         4.       PARTIAL INDEMNIFICATION. If Indemnitee is entitled under any
provision of this Agreement to indemnification by the Company for some or a
portion of the expenses, judgments, fines or penalties actually or reasonably
incurred by him in the investigation, defense, appeal or settlement of any civil
or criminal action or proceeding, but not, however, for the total amount
thereof, the Company shall nevertheless indemnify Indemnitee for the portion of
such expenses, judgments, fines or penalties to which Indemnitee is entitled.

<PAGE>   5
                                      -5-

         5.       OFFICER AND DIRECTOR LIABILITY INSURANCE. The Company shall,
from time to time, make the good faith determination whether or not it is
practicable for the Company to obtain and maintain a policy or policies of
insurance with reputable insurance companies providing the officers and
directors of the Company with coverage for losses from wrongful acts, or to
ensure the Company's performance of its indemnification obligations under this
Agreement. Among other considerations, the Company will weigh the costs of
obtaining such insurance coverage against the protection afforded by such
coverage. In all policies of director and officer liability insurance,
Indemnitee shall be named as an insured in such a manner as to provide
Indemnitee the same rights and benefits as are accorded to the most favorably
insured of the Company's directors, if Indemnitee is a director; or of the
Company's officers, if Indemnitee is not a director of the Company but is an
officer; or of the Company's key employees, if Indemnitee is not an officer or
director but is a key employee. Notwithstanding the foregoing, the Company shall
have no obligation to obtain or maintain such insurance if the Company
determines in good faith that such insurance is not reasonably available, if the
premium costs for such insurance are disproportionate to the amount of coverage
provided, if the coverage provided by such insurance is limited by exclusions so
as to provide an insufficient benefit, or if Indemnitee is covered by similar
insurance maintained by a subsidiary or parent of the Company.

         6.       SEVERABILITY. Nothing in this Agreement is intended to require
or shall be construed as requiring the Company to do or fail to do any act in
violation of applicable law. The Company's inability, pursuant to court order,
to perform its obligations under this Agreement shall not constitute a breach of
this Agreement. The provisions of this Agreement shall be severable as provided
in this Section 6. If this Agreement or any portion hereof shall be invalidated
on any ground by any court of competent jurisdiction, then the Company shall
nevertheless indemnify Indemnitee to the fullest extent permitted by any
applicable portion of this Agreement that shall not have been invalidated, and
the balance of this Agreement not so invalidated shall be enforceable in
accordance with its terms.

         7.       EXCEPTIONS. Any other provision herein to the contrary
notwithstanding, the Company shall not be obligated pursuant to the terms of
this Agreement:

                  (a)      CLAIMS INITIATED BY INDEMNITEE. To indemnify or
advance expenses to Indemnitee with respect to proceedings or claims initiated
or brought voluntarily by Indemnitee and not by way of defense, except with
respect to proceedings brought to establish or enforce a right to
indemnification under this Agreement or any other statute or law or otherwise as
required under Section 145 of the DGCL, but such indemnification or advancement
of expenses may be provided by the Company in specific cases if the Board of
Directors has approved the initiation of such suit; or

                  (b)      LACK OF GOOD FAITH. To indemnify Indemnitee for any
expenses incurred by Indemnitee with respect to any proceeding instituted by
Indemnitee to enforce or interpret this Agreement, if a court of competent
jurisdiction determines that each of the material assertions made by Indemnitee
in such proceeding was not made in good faith or was frivolous; or

                  (c)      INSURED CLAIMS. To indemnify Indemnitee for expenses
or liabilities of any type whatsoever (including, but not limited to, judgments,
fines, ERISA excise taxes or penalties, and amounts paid in settlement) to the
extent such expenses or liabilities have been paid directly to Indemnitee by an
insurance carrier under a policy of officers' and directors' liability insurance
maintained by the Company; or

                  (d)      CLAIMS UNDER SECTION 16(b). To indemnify Indemnitee
for expenses or the payment of profits arising from the purchase and sale by
Indemnitee of securities in violation of Section 16(b) of the Securities
Exchange Act of 1934, as amended, or any similar successor statute; or

<PAGE>   6
                                      -6-

                  (e)      To indemnify Indemnitee for any acts or omissions, or
transactions from which a director may not be relieved of liability under
applicable law or pertinent public policy.

         8.       CONSTRUCTION OF CERTAIN PHRASES

                  (a)      For purposes of this Agreement, references to the
"Company" shall include, in addition to the resulting corporation, any
constituent corporation (including any constituent of a constituent) absorbed in
a consolidation or merger which, if its separate existence had continued, would
have had power and authority to indemnify its directors, officers, and employees
or agents, so that if Indemnitee is or was a director, officer, employee or
agent of such constituent corporation, or is or was serving at the request of
such constituent corporation as a director, officer, employee or agent of
another corporation, partnership, joint venture, trust or other enterprise,
Indemnitee shall stand in the same position under the provisions of this
Agreement with respect to the resulting or surviving corporation as Indemnitee
would have with respect to such constituent corporation if its separate
existence had continued.

                  (b)      For purposes of this Agreement, references to "other
enterprises" shall include employee benefit plans; references to "fines" shall
include any excise taxes assessed on Indemnitee with respect to an employee
benefit plan; and references to "serving at the request of the company" shall
include any service as a director, officer, employee or agent of the Company
which imposes duties on, or involves services by, such director, officer,
employee or agent with respect to an employee benefit plan, its participants, or
beneficiaries.

         9.       EFFECTIVENESS OF AGREEMENT. This Agreement shall be effective
as of the date set forth on the first page and may apply to acts or omissions of
Indemnitee which occurred prior to such date if Indemnitee was an officer,
director, employee or other agent of the Company, or was serving at the request
of the Company as a director, officer, employee or agent of another corporation,
partnership, joint venture, trust or other enterprise, as the time such act or
omission occurred.

         10.      ATTORNEYS' FEES. In the event that any action is instituted by
Indemnitee under this Agreement to enforce or interpret any of the terms hereof,
Indemnitee shall be entitled to be paid all court costs and expenses, including
reasonable attorneys' fees, incurred by Indemnitee with respect to such action,
unless as a part of such action, the Delaware Court of Chancery determines that
each of the material assertions made by Indemnitee as a basis for such action
were not made in good faith or were frivolous. In the event of an action
instituted by or in the name of the Company under this Agreement or to enforce
or interpret any of the terms of this Agreement, Indemnitee shall be entitled to
be paid all court costs and expenses, including attorneys' fees, incurred by
Indemnitee in defense of such action (including with respect to Indemnitee's
counterclaims and cross-claims made in such action), unless as a part of such
action the court determines that each of Indemnitee's material defenses to such
action were made in bad faith or were frivolous.

         11.      NO RIGHTS OF CONTINUED SERVICE. This Agreement shall not
impose any obligation of the Company to continue Indemnitee's service to the
Company beyond any period otherwise required by law or by other agreements or
commitments of the parties, if any.

         12.      MISCELLANEOUS by other agreements or commitments or the
parties, if any.

                  (a)      GOVERNING LAW. This Agreement and all acts and
transactions pursuant hereto and the rights and obligations of the parties
hereto shall be governed, construed and interpreted in accordance with the laws
of the State of Delaware, without giving effect to principles of conflict of
law.

<PAGE>   7
                                      -7-

                  (b)      CONSENT TO JURISDICTION. The Company and the
Indemnitee each hereby irrevocably consent to the exclusive jurisdiction of the
Court of Chancery of Delaware for any purpose in connection with any actions or
proceedings which arise out of or relate to this Agreement.

                  (c)      ENTIRE AGREEMENT; ENFORCEMENT OF RIGHTS. This
Agreement sets forth the entire agreement and understanding of the parties
relating to the subject matter herein and merges all prior discussions between
them. No modification of or amendment to this Agreement, nor any waiver of any
rights under this Agreement, shall be effective unless in writing signed by the
parties to this Agreement. The failure by either party to enforce any rights
under this Agreement shall not be construed as a waiver of any rights of such
party.

                  (d)      CONSTRUCTION. This Agreement is the result of
negotiations between, and has been reviewed by, each of the parties hereto and
their respective counsel, if any; accordingly, this Agreement shall be deemed to
be the product of all of the parties hereto, and no ambiguity shall be construed
in favor of or against any one of the parties hereto.

                  (e)      NOTICES. Unless otherwise provided in this Agreement,
any notice, demand or request required or permitted to be given under this
Agreement shall be in writing and shall be deemed sufficient when directed to
the Chief Executive Officer of the Company at the address shown on the signature
page of this Agreement (or such other address as the Company shall designate in
writing) and when delivered personally or three business days after being
postmarked, as certified or registered mail, with postage prepaid, and addressed
to the party to be notified at such party's address as set forth below or as
subsequently modified by written notice.

                  (f)      COUNTERPARTS. This Agreement may be executed in two
or more counterparts, each of which shall be deemed an original and all of which
together shall constitute one instrument.

                  (g)      SUCCESSORS AND ASSIGNS. This Agreement shall be
binding upon the Company and its successors and assigns, including any direct or
indirect successor by purchase, merger, consolidation or otherwise to all,
substantially all or a substantial part of the business or assets of the
Company. This Agreement shall inure to the benefit of Indemnitee and
Indemnitee's heirs, legal representatives, executives and administrators. The
Company shall require and cause any successor (whether direct or indirect, and
whether by purchase, merger, consolidation or otherwise) to all, substantially
all or a substantial part of the business or assets of the Company, by written
agreement in form and substance satisfactory to the Indemnitee, expressly to
assume and agree to perform this Agreement in the same manner and to the same
extent that the Company would be required to perform if no such succession had
taken place.

                  (h)      SUBROGATION. In the event of payment under this
Agreement, the Company shall be subrogated to the extent of such payment to all
of the rights of recovery of Indemnitee, who shall execute all documents
required and shall do all acts that may be necessary to secure such rights and
to enable the Company to effectively bring suit to enforce such rights.

               [REMAINDER OF THIS PAGE LEFT INTENTIONALLY BLANK]

<PAGE>   8
                                      -8-

         IN WITNESS WHEREOF, the parties hereto have executed this Agreement as
of the date first above written.

EVERGREEN SOLAR, INC.

By: _________________________________        ___________________________________

Name: _______________________________        Indemnitee

Title: ______________________________

Address: ____________________________         Address: _________________________

         ____________________________                  _________________________

         ____________________________                  _________________________

<PAGE>   9

EXHIBIT 1
UNDERTAKING

         1.       This Undertaking is submitted pursuant to the Indemnification
Agreement dated as of ________________ between Evergreen Solar, Inc., a Delaware
corporation (the "Company"), and the undersigned (the "Agreement"). Capitalized
terms used but not defined herein shall have the respective meanings set forth
in the Agreement.

         2.       I am requesting certain Expense Advances in connection with a
Claim.

         3.       I hereby undertake to repay such Expense Advances if it shall
ultimately be determined that I am not entitled to be indemnified by the Company
therefor under the Agreement or otherwise.

         4.       The Expense Advances are, in general, all related to:

                                         Signed:  ______________________________

                                         Dated:   ______________________________

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