SATCON TECHNOLOGY CORP
S-3/A, EX-1.1, 2000-12-14
SEMICONDUCTORS & RELATED DEVICES
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                                                                     Exhibit 1.1

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                          SATCON TECHNOLOGY CORPORATION

                            (a Delaware corporation)



                           [o] Shares of Common Stock





                             UNDERWRITING AGREEMENT


















Dated: [o], 2000



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                                TABLE OF CONTENTS
SCHEDULES

Schedule A        -        List of Underwriters
Schedule B        -        Option Securities
Schedule C        -        Pricing Information
Schedule D        -        Schedule of Patents
Schedule E        -        List of Persons and Entities Subject to Lock-Up


EXHIBITS

Exhibit A         -        Form of Opinion of Company's Counsel
Exhibit B         -        Form of Opinion of Company's Intellectual Property
                           Counsel
Exhibit C         -        Form of Lock-up Letter


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                          SATCON TECHNOLOGY CORPORATION

                            (a Delaware corporation)

                           [o] Shares of Common Stock

                           (Par Value $.01 Per Share)

                             UNDERWRITING AGREEMENT

                                                                       [o], 2000

CIBC World Markets Corp.
Banc of America Securities LLC
FAC/Equities, a division of First Albany Corporation
  as Representatives of the several Underwriters

c/o CIBC World Markets Corp.
One Financial Center
New York, New York  10281

Ladies and Gentlemen:

         SatCon Technology Corporation, a Delaware corporation (the "Company"),
confirms its agreement with CIBC World Markets Corp. ("CIBC") and each of the
other Underwriters named in SCHEDULE A hereto (collectively, the "Underwriters",
which term shall also include any underwriter substituted as hereinafter
provided in Section 10 hereof), for whom CIBC World Markets Corp., Banc of
America Securities LLC and FAC/Equities, a division of First Albany Corporation,
are acting as representatives (in such capacity, the "Representatives"), with
respect to (i) the sale by the Company, and the purchase by the Underwriters,
acting severally and not jointly, of the respective numbers of shares of Common
Stock, par value $.01 per share, of the Company ("the Common Stock") set forth
in SCHEDULE A hereto and (ii) the grant by the Company to the Underwriters,
acting severally and not jointly, of the option described in Section 2(b) hereof
to purchase all or any part of [o] additional shares of Common Stock to cover
over-allotments, if any. The aforesaid [o] shares of Common Stock (the "Initial
Securities") to be purchased by the Underwriters and all or any part of the [o]
shares of Common Stock subject to the option described in Section 2(b) hereof
(the "Option Securities") are hereinafter called, collectively, the
"Securities".

         The Company understands that the Underwriters propose to make a public
offering of the Securities as soon as the Representatives deem advisable after
this Agreement has been executed and delivered.

         The Company has filed with the Securities and Exchange Commission (the
"Commission") a registration statement on Form S-3 (No. 333-48936) covering the
registration of the Securities under the Securities Act of 1933, as amended (the
"1933 Act"), including the


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related preliminary prospectus or prospectuses. Promptly after execution and
delivery of this Agreement, the Company will either (i) prepare and file a
prospectus in accordance with the provisions of Rule 430A ("Rule 430A") of the
rules and regulations of the Commission under the 1933 Act (the "1933 Act
Regulations") and paragraph (b) of Rule 424 ("Rule 424(b)") of the 1933 Act
Regulations or (ii) if the Company has elected to rely upon Rule 434 ("Rule
434") of the 1933 Act Regulations, prepare and file a term sheet (a "Term
Sheet") in accordance with the provisions of Rule 434 and Rule 424(b). The
information included in such prospectus or in such Term Sheet, as the case may
be, that was omitted from such registration statement at the time it became
effective but that is deemed to be part of such registration statement at the
time it became effective (a) pursuant to paragraph (b) of Rule 430A is referred
to as "Rule 430A Information" or (b) pursuant to paragraph (d) of Rule 434 is
referred to as "Rule 434 Information." Each prospectus used before such
registration statement became effective, and any prospectus that omitted, as
applicable, the Rule 430A Information or the Rule 434 Information, that was used
after such effectiveness and prior to the execution and delivery of this
Agreement, is herein called a "preliminary prospectus." Such registration
statement, including the exhibits thereto, schedules thereto, if any, and the
documents incorporated by reference therein pursuant to Item 12 of Form S-3
under the 1933 Act, at the time it became effective and including the Rule 430A
Information and the Rule 434 Information, as applicable, is herein called the
"Registration Statement." Any registration statement filed pursuant to Rule
462(b) of the 1933 Act Regulations is herein referred to as the "Rule 462(b)
Registration Statement," and after such filing the term "Registration Statement"
shall include the Rule 462(b) Registration Statement. The final prospectus,
including the documents incorporated by reference therein pursuant to Item 12 of
Form S-3 under the 1933 Act, in the form first furnished to the Underwriters for
use in connection with the offering of the Securities is herein called the
"Prospectus." If Rule 434 is relied on, the term "Prospectus" shall refer to the
preliminary prospectus dated [o], 2000 together with the Term Sheet and all
references in this Agreement to the date of the Prospectus shall mean the date
of the Term Sheet. For purposes of this Agreement, all references to the
Registration Statement, any preliminary prospectus, the Prospectus or any Term
Sheet or any amendment or supplement to any of the foregoing shall be deemed to
include the copy filed with the Commission pursuant to its Electronic Data
Gathering, Analysis and Retrieval system ("EDGAR").

         All references in this Agreement to financial statements and schedules
and other information which is "contained," "included" or "stated" in the
Registration Statement, any preliminary prospectus or the Prospectus (or other
references of like import) shall be deemed to mean and include all such
financial statements and schedules and other information which is incorporated
by reference in the Registration Statement, any preliminary prospectus or the
Prospectus, as the case may be; and all references in this Agreement to
amendments or supplements to the Registration Statement, any preliminary
prospectus or the Prospectus shall be deemed to mean and include the filing of
any document under the Securities Exchange Act of 1934, as amended (the "1934
Act"), which is incorporated by reference in the Registration Statement, such
preliminary prospectus or the Prospectus, as the case may be.


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     SECTION 1.        REPRESENTATIONS AND WARRANTIES.

     (a) REPRESENTATIONS AND WARRANTIES BY THE COMPANY. The Company represents
and warrants to each Underwriter as of the date hereof, as of the Closing Time
referred to in Section 2(c) hereof, and as of each Date of Delivery (if any)
referred to in Section 2(b) hereof, and agrees with each Underwriter, as
follows:

          (i) COMPLIANCE WITH REGISTRATION REQUIREMENTS. The Company meets the
     requirements for use of Form S-3 under the 1933 Act. Each of the
     Registration Statement and any Rule 462(b) Registration Statement has
     become effective under the 1933 Act and no stop order suspending the
     effectiveness of the Registration Statement or any Rule 462(b) Registration
     Statement has been issued under the 1933 Act and no proceedings for that
     purpose have been instituted or are pending or, to the knowledge of the
     Company, are contemplated by the Commission, and any request on the part of
     the Commission for additional information has been complied with.

          At the respective times the Registration Statement, any Rule 462(b)
     Registration Statement and any post-effective amendments thereto became
     effective and at the Closing Time (and, if any Option Securities are
     purchased, at the Date of Delivery), the Registration Statement, the Rule
     462(b) Registration Statement and any amendments and supplements thereto
     complied and will comply in all material respects with the requirements of
     the 1933 Act and the 1933 Act Regulations and did not and will not contain
     an untrue statement of a material fact or omit to state a material fact
     required to be stated therein or necessary to make the statements therein
     not misleading. None of the Prospectus, any preliminary prospectus or any
     amendments or supplements thereto (including any prospectus wrapper), at
     the time the Prospectus or such preliminary prospectus or any such
     amendment or supplement was issued and at the Closing Time (and, if any
     Option Securities are purchased, at the Date of Delivery), included or will
     include an untrue statement of a material fact or omitted or will omit to
     state a material fact necessary in order to make the statements therein, in
     the light of the circumstances under which they were made, not misleading.
     If Rule 434 is used, the Company will comply with the requirements of Rule
     434 and the Prospectus shall not be "materially different", as such term is
     used in Rule 434, from the prospectus included in the Registration
     Statement at the time it became effective. The representations and
     warranties in this subsection shall not apply to statements in or omissions
     from the Registration Statement or Prospectus made in reliance upon and in
     conformity with information furnished to the Company in writing by any
     Underwriter through CIBC expressly for use in the Registration Statement or
     Prospectus.

          Each preliminary prospectus and the prospectus filed as part of the
     Registration Statement as originally filed or as part of any amendment
     thereto, or filed pursuant to Rule 424 under the 1933 Act, complied when so
     filed in all material respects with the 1933 Act Regulations and each
     preliminary prospectus and the Prospectus delivered to the Underwriters for
     use in connection with this offering was identical to the electronically
     transmitted copies thereof filed with the Commission pursuant to EDGAR,
     except to the extent permitted by Regulation S-T.


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          (ii) INCORPORATED DOCUMENTS. The documents incorporated or deemed to
     be incorporated by reference in the Registration Statement and the
     Prospectus, when they became effective or at the time they were filed with
     the Commission (provided, however, if such documents have been amended, as
     of the time of such amendment), complied in all material respects with the
     requirements of the 1933 Act and the 1933 Act Regulations or the 1934 Act
     and the rules and regulations of the Commission thereunder (the "1934 Act
     Regulations"), as applicable, and, when read together with the other
     information in the Prospectus, at the time the Registration Statement
     became effective, at the time the Prospectus was issued and at the Closing
     Time (and, if any Option Securities are purchased, at the Date of
     Delivery), did not and will not contain an untrue statement of a material
     fact or omit to state a material fact required to be stated therein or
     necessary to make the statements therein not misleading.

          (iii) INDEPENDENT ACCOUNTANTS. The accountants who certified the
     financial statements and supporting schedules included in the Registration
     Statement are independent public accountants as required by the 1933 Act
     and the 1933 Act Regulations.

          (iv) FINANCIAL STATEMENTS AND ACCOUNTING CONTROLS. The financial
     statements included in the Registration Statement and the Prospectus,
     together with the related schedules and notes, present fairly the financial
     position of the Company, its consolidated Subsidiaries and Beacon Power
     Corporation, at the dates indicated and the statement of operations,
     stockholders' equity and cash flows of the Company, its consolidated
     Subsidiaries and Beacon Power Corporation, for the periods specified; said
     financial statements have been prepared in conformity with generally
     accepted accounting principles ("GAAP") applied on a consistent basis
     throughout the periods involved. The supporting schedules, if any, included
     in the Registration Statement present fairly in accordance with GAAP the
     information required to be stated therein. The selected consolidated
     financial data and the summary consolidated financial data included in the
     Prospectus present fairly the information shown therein and have been
     compiled on a basis consistent with that of the audited financial
     statements included in the Registration Statement. The pro forma financial
     statements and the related notes thereto included in the Registration
     Statement and the Prospectus present fairly the information shown therein,
     have been prepared in accordance with the Commission's rules and guidelines
     with respect to pro forma financial statements and have been properly
     compiled on the bases described therein, and the assumptions used in the
     preparation thereof are reasonable and the adjustments used therein are
     appropriate to give effect to the transactions and circumstances referred
     to therein.

          The Company has established and maintains a system of internal
     accounting controls sufficient to provide reasonable assurance that (a)
     transactions are recorded as necessary to permit preparation of financial
     statements in conformity with GAAP, as applicable, and to maintain asset
     accountability; and (b) the recorded accountability for assets is compared
     with the existing assets at reasonable intervals and appropriate action is
     taken with respect to any differences.


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          (v) NO MATERIAL ADVERSE CHANGE IN BUSINESS. Since the respective dates
     as of which information is given in the Registration Statement and the
     Prospectus, except as otherwise stated therein, (A) there has been no
     material adverse change in the condition, financial or otherwise, or in the
     earnings, business affairs or business prospects described in the
     Prospectus of the Company and its Subsidiaries considered as one
     enterprise, whether or not arising in the ordinary course of business (a
     "Material Adverse Effect"), (B) there have been no transactions entered
     into by the Company or any of its Subsidiaries (as defined below), other
     than those in the ordinary course of business, which are material with
     respect to the Company and its Subsidiaries considered as one enterprise,
     and (C) there has been no dividend or distribution of any kind declared,
     paid or made by the Company on any class of its capital stock.

          (vi) GOOD STANDING OF THE COMPANY. The Company has been duly organized
     and is validly existing as a corporation in good standing under the laws of
     the State of Delaware and has corporate power and authority to own, lease
     and operate its properties and to conduct its business as described in the
     Prospectus and to enter into and perform its obligations under this
     Agreement; and the Company is duly qualified as a foreign corporation to
     transact business and is in good standing in each other jurisdiction in
     which such qualification is required, whether by reason of the ownership or
     leasing of property or the conduct of business, except where the failure so
     to qualify or to be in good standing would not result in a Material Adverse
     Effect.

          (vii) GOOD STANDING OF SUBSIDIARIES. Each of SatCon Film
     Microelectronics, Inc., a Delaware corporation, K & D MagMotor Corp., a
     Delaware corporation, HyComp Acquisition Corp., a Delaware corporation,
     Ling Electronics, Inc., a California corporation and Ling Electronics, Ltd.
     (each a "Subsidiary" and, collectively, the "Subsidiaries") has been duly
     organized and is validly existing as a corporation in good standing under
     the laws of the jurisdiction of its incorporation, has corporate power and
     authority to own, lease and operate its properties and to conduct its
     business as described in the Prospectus and is duly qualified as a foreign
     corporation to transact business and is in good standing in each
     jurisdiction in which such qualification is required, whether by reason of
     the ownership or leasing of property or the conduct of business, except
     where the failure so to qualify or to be in good standing would not result
     in a Material Adverse Effect; except as otherwise disclosed in the
     Registration Statement, all of the issued and outstanding capital stock of
     each such Subsidiary has been duly authorized and validly issued, is fully
     paid and non-assessable and is owned by the Company, directly or through
     Subsidiaries, free and clear of any security interest, mortgage, pledge,
     lien, encumbrance, claim or equity; none of the outstanding shares of
     capital stock of any Subsidiary was issued in violation of the preemptive
     or similar rights of any securityholder of such Subsidiary. Other than
     Beacon Power Corporation, the Company has no subsidiaries other than the
     Subsidiaries.

          (viii) CAPITALIZATION. The authorized, issued and outstanding capital
     stock of the Company is as set forth in the Prospectus in the column
     entitled "Actual" under the caption "Capitalization" as of the date thereof
     and there have been no subsequent issuances other than pursuant to this
     Agreement, pursuant to reservations, agreements or


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     employee benefit plans referred to in the Prospectus or pursuant to the
     exercise of convertible securities, warrants or options referred to in the
     Prospectus. The shares of issued and outstanding capital stock have been
     duly authorized and validly issued and are fully paid and non-assessable;
     none of the outstanding shares of capital stock was issued in violation of
     the preemptive or other similar rights of any securityholder of the
     Company.

          (ix) AUTHORIZATION OF AGREEMENT. This Agreement has been duly
     authorized, executed and delivered by the Company.

          (x) AUTHORIZATION AND DESCRIPTION OF SECURITIES. The Securities to be
     purchased by the Underwriters from the Company have been duly authorized
     for issuance and sale to the Underwriters pursuant to this Agreement and,
     when issued and delivered by the Company pursuant to this Agreement against
     payment of the consideration set forth herein, will be validly issued and
     fully paid and non-assessable; the Common Stock conforms in all material
     respects to the statements relating thereto contained in the Prospectus and
     such description conforms in all material respects to the rights set forth
     in the instruments defining the same; no holder of the Securities will be
     subject to personal liability by reason of being such a holder; and the
     issuance of the Securities is not subject to the preemptive or other
     similar rights of any securityholder of the Company.

          (xi) ABSENCE OF DEFAULTS AND CONFLICTS. Neither the Company nor any of
     its Subsidiaries is in violation of its charter or by-laws or in default in
     the performance or observance of any obligation, agreement, covenant or
     condition contained in any contract, indenture, mortgage, deed of trust,
     loan or credit agreement, note, lease or other agreement or instrument to
     which the Company or any of its Subsidiaries is a party or by which it or
     any of them may be bound, or to which any of the property or assets of the
     Company or any Subsidiary is subject (collectively, "Agreements and
     Instruments"), except for such defaults that would not result in a Material
     Adverse Effect; and the execution, delivery and performance of this
     Agreement and the consummation of the transactions contemplated herein and
     in the Registration Statement (including the issuance and sale of the
     Securities and the use of the proceeds from the sale of the Securities as
     described in the Prospectus under the caption "Use of Proceeds") and
     compliance by the Company with its obligations hereunder have been duly
     authorized by all necessary corporate action and do not and will not,
     whether with or without the giving of notice or passage of time or both,
     conflict with or constitute a breach of, or default or Repayment Event (as
     defined below) under, or result in the creation or imposition of any lien,
     charge or encumbrance upon any property or assets of the Company or any
     Subsidiary pursuant to, the Agreements and Instruments (except for such
     conflicts, breaches or defaults or liens, charges or encumbrances that
     would not result in a Material Adverse Effect), nor will such action result
     in any violation of the provisions of the charter or by-laws of the Company
     or any Subsidiary or any applicable law, statute, rule, regulation,
     judgment, order, writ or decree of any government, government
     instrumentality or court, domestic or foreign, having jurisdiction over the
     Company or any Subsidiary or any of their assets, properties or operations
     other than any violation that would not result in a Material Adverse
     Effect. As used herein, a "Repayment Event"


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     means any event or condition which gives the holder of any note, debenture
     or other evidence of indebtedness (or any person acting on such holder's
     behalf) the right to require the repurchase, redemption or repayment of all
     or a portion of such indebtedness by the Company or any Subsidiary.

          (xii) AFFILIATED TRANSACTIONS. No transaction has occurred between or
     among the Company and any of its officers, directors, or five percent
     stockholders or any affiliate or affiliates of any such officer, director
     or five percent stockholder that is required to be described in and is not
     described in the Registration Statement and the Prospectus.

          (xiii) ABSENCE OF LABOR DISPUTE. No labor dispute with the employees
     of the Company or any Subsidiary exists or, to the knowledge of the
     Company, is imminent, which, may reasonably be expected to result in a
     Material Adverse Effect.

          (xiv) ABSENCE OF PROCEEDINGS. There is no action, suit or, to the
     knowledge of the Company, proceeding, inquiry or investigation before or
     brought by any court or governmental agency or body, domestic or foreign,
     now pending or, to the knowledge of the Company, threatened, against or
     affecting the Company or any Subsidiary, which is required to be disclosed
     in the Registration Statement (other than as disclosed therein), or which
     might reasonably be expected to result in a Material Adverse Effect, or
     which might reasonably be expected to materially and adversely affect the
     consummation of the transactions contemplated in this Agreement or the
     performance by the Company of its obligations hereunder; the aggregate of
     all pending legal or governmental proceedings to which the Company or any
     Subsidiary is a party or of which any of their respective property or
     assets is the subject which are not described in the Registration
     Statement, including ordinary routine litigation incidental to the
     business, would not reasonably be expected to result in a Material Adverse
     Effect.

          (xv) ACCURACY OF EXHIBITS. There are no material contracts or
     documents which are required to be described in the Registration Statement,
     the Prospectus or the documents incorporated by reference therein or to be
     filed as exhibits thereto which have not been so described and filed as
     required.

          (xvi) POSSESSION OF INTELLECTUAL PROPERTY. The Company and its
     Subsidiaries own or possess, or can acquire on reasonable terms, adequate
     patents, patent rights, licenses, inventions, copyrights, know-how
     (including trade secrets and other unpatented and/or unpatentable
     proprietary or confidential information, systems or procedures),
     trademarks, service marks, trade names or other intellectual property,
     including specifically but without limitation the patents listed on
     SCHEDULE D hereto, (collectively, "Intellectual Property") necessary to
     carry on the business now operated by them, and neither the Company nor any
     of its Subsidiaries has received any notice or is otherwise aware of any
     infringement of or conflict with asserted rights of others with respect to
     any Intellectual Property or of any facts or circumstances which would
     render any Intellectual Property invalid or inadequate to protect the
     interest of the Company or any of its Subsidiaries therein, and which
     infringement or conflict (if the subject of any unfavorable


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     decision, ruling or finding) or invalidity or inadequacy, singly or in the
     aggregate, would result in a Material Adverse Effect.

          (xvii) ABSENCE OF FURTHER REQUIREMENTS. No filing with, or
     authorization, approval, consent, license, order, registration,
     qualification or decree of, any court or governmental authority or agency
     is necessary or required for the performance by the Company of its
     obligations hereunder, in connection with the offering, issuance or sale of
     the Securities hereunder or the consummation of the transactions
     contemplated by this Agreement, except (i) such as have been already
     obtained or as may be required under the 1933 Act or the 1933 Act
     Regulations or state securities laws and (ii) such as have been obtained
     under the laws and regulations of jurisdictions outside the United States
     in which the Reserved Securities are offered.

          (xviii) POSSESSION OF LICENSES AND PERMITS. The Company and its
     Subsidiaries possess such permits, licenses, approvals, consents and other
     authorizations (collectively, "Governmental Licenses") issued by the
     appropriate federal, state, local or foreign regulatory agencies or bodies
     necessary to conduct the business now operated by them, except where the
     failure to possess such permits, licenses, approvals, consents and other
     authorizations would not, singly or in the aggregate, result in a Material
     Adverse Effect; the Company and its Subsidiaries are in compliance with the
     terms and conditions of all such Governmental Licenses, except where the
     failure so to comply would not, singly or in the aggregate, have a Material
     Adverse Effect; all of the Governmental Licenses are valid and in full
     force and effect, except when the invalidity of such Governmental Licenses
     or the failure of such Governmental Licenses to be in full force and effect
     would not have a Material Adverse Effect; and neither the Company nor any
     of its Subsidiaries has received any notice of proceedings relating to the
     revocation or modification of any such Governmental Licenses which, singly
     or in the aggregate, if the subject of an unfavorable decision, ruling or
     finding, would result in a Material Adverse Effect.

          (xix) TITLE TO PROPERTY. The Company and its Subsidiaries do not own
     any real property; and all of the leases and subleases material to the
     business of the Company and its Subsidiaries, considered as one enterprise,
     and under which the Company or any of its Subsidiaries holds properties
     described in the Prospectus, are in full force and effect, and neither the
     Company nor any Subsidiary has any notice of any material claim of any sort
     that has been asserted by anyone adverse to the rights of the Company or
     any Subsidiary under any of the leases or subleases mentioned above, or
     affecting or questioning the rights of the Company or such Subsidiary to
     the continued possession of the leased or subleased premises under any such
     lease or sublease.

          (xx) INVESTMENT COMPANY ACT. The Company is not, and upon the issuance
     and sale of the Securities as herein contemplated and the application of
     the net proceeds therefrom as described in the Prospectus will not be, an
     "investment company" or an entity "controlled" by an "investment company"
     as such terms are defined in the Investment Company Act of 1940, as amended
     (the "1940 Act").


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          (xxi) ENVIRONMENTAL LAWS. Except as described in the Registration
     Statement and except as would not, singly or in the aggregate, result in a
     Material Adverse Effect, (A) neither the Company nor any of its
     Subsidiaries is in violation of any federal, state, local or foreign
     statute, law, rule, regulation, ordinance, code, policy or rule of common
     law or any judicial or administrative interpretation thereof, including any
     judicial or administrative order, consent, decree or judgment, relating to
     pollution or protection of human health, the environment (including,
     without limitation, ambient air, surface water, groundwater, land surface
     or subsurface strata) or wildlife, including, without limitation, laws and
     regulations relating to the release or threatened release of chemicals,
     pollutants, contaminants, wastes, toxic substances, hazardous substances,
     petroleum or petroleum products (collectively, "Hazardous Materials") or to
     the manufacture, processing, distribution, use, treatment, storage,
     disposal, transport or handling of Hazardous Materials (collectively,
     "Environmental Laws"), (B) the Company and its Subsidiaries have all
     permits, authorizations and approvals required under any applicable
     Environmental Laws and are each in compliance with their requirements, (C)
     there are no pending or, to the Company's knowledge, threatened
     administrative, regulatory or judicial actions, suits, demands, demand
     letters, claims, liens, notices of noncompliance or violation,
     investigation or proceedings relating to any Environmental Law against the
     Company or any of its Subsidiaries and (D) there are no events or
     circumstances known to the Company that might reasonably be expected to
     form the basis of an order for clean-up or remediation, or an action, suit
     or proceeding by any private party or governmental body or agency, against
     or affecting the Company or any of its Subsidiaries relating to Hazardous
     Materials or any Environmental Laws.

          (xxii) DIVIDENDS AND DISTRIBUTIONS. No Subsidiary of the Company is
     currently prohibited, directly or indirectly, from paying any dividends to
     the Company, making any other distribution on such Subsidiary's capital
     stock, repaying to the Company any loans or advances to such Subsidiary
     from the Company or transferring any of such Subsidiary's property or
     assets to the Company or any other Subsidiary of the Company.

          (xxiii) TAXES. The Company has filed all foreign, federal, state and
     local tax returns that are required to be filed or has requested extensions
     thereof (except in any case in which the failure so to file would not
     result in a Material Adverse Effect) and has paid all taxes required to be
     paid by it and any other assessment, fine or penalty levied against it
     (except in any case in which the failure to so pay would not result in a
     Material Adverse Effect), to the extent that any of the foregoing is due
     and payable, except for any such assessment, fine or penalty that is
     currently being contested in good faith or as described in or contemplated
     by the Prospectus.

          (xxiv) INSURANCE. The Company is insured by insurers of recognized
     financial responsibility against such losses and risks and in such amounts
     as are customary in the businesses in which it is engaged or propose to
     engage after giving effect to the transactions described in the Prospectus;
     all policies of insurance and fidelity or surety bonds insuring the Company
     or any of its Subsidiaries or the Company's or its Subsidiaries' respective
     businesses, assets, employees, officers and directors are in full force and
     effect; the Company and each of its subsidiaries are in compliance with the


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     terms of such policies and instruments in all material respects; and the
     Company has no reason to believe that it will not be able to renew its
     existing insurance coverage as and when such coverage expires or to obtain
     similar coverage from similar insurers as may be necessary to continue its
     business at a cost that would not have a Material Adverse Effect. The
     Company has not been denied any insurance coverage which it has sought or
     for which it has applied.

          (xxv) ERISA. The Company and each of its Subsidiaries are each in
     compliance in all material respects with all presently applicable
     provisions of the Employee Retirement Income Security Act of 1974, as
     amended ("ERISA"); no "reportable event" (as defined in ERISA) has occurred
     with respect to any "pension plan" (as defined in ERISA) for which the
     Company would have any material liability; the Company has not incurred and
     does not expect to incur material liability under (x) Title IV of ERISA
     with respect to termination of, or withdrawal from, any "pension plan" or
     (y) Sections 412 or 4971 of the Code; and each "pension plan" for which the
     Company would have any liability that is intended to be qualified under
     Section 401(a) of the Code is so qualified in all material respects and
     nothing has occurred, whether by action or by failure to act, which would
     cause the loss of such qualification.

          (xxvi) REGISTRATION RIGHTS. Other than the individuals and entities
     listed as selling stockholders in the Registration Statement on Form S-3
     (File No. 333-87157) and the Registration Statement on Form S-3 (File No.
     333-94859), there are no persons with registration rights to have any
     securities registered under the 1933 Act and included in the Registration
     Statement.

     (b) OFFICER'S CERTIFICATES. Any certificate signed by any officer of the
Company or any of its Subsidiaries delivered to the Representatives or to
counsel for the Underwriters shall be deemed a representation and warranty by
the Company to each Underwriter as to the matters covered thereby.

     SECTION 2. SALE AND DELIVERY TO UNDERWRITERS; CLOSING.

     (a) INITIAL SECURITIES. On the basis of the representations and warranties
herein contained and subject to the terms and conditions herein set forth, the
Company agrees to sell to each Underwriter, severally and not jointly, and each
Underwriter, severally and not jointly, agrees to purchase from the Company, at
the price per share set forth in SCHEDULE C, that number of Initial Securities
set forth in SCHEDULE A opposite the name of such Underwriter, plus any
additional number of Initial Securities which such Underwriter may become
obligated to purchase pursuant to the provisions of Section 10 hereof.

     (b) OPTION SECURITIES. In addition, on the basis of the representations and
warranties herein contained and subject to the terms and conditions herein set
forth, the Company hereby grants an option to the Underwriters, severally and
not jointly, to purchase up to an additional [o] shares of Common Stock, as set
forth in SCHEDULE B, at the price per share set forth in SCHEDULE C. The option
hereby granted will expire 30 days after the date hereof and may be exercised in
whole or in part from time to time only for the purpose of covering
over-allotments which may


                                       10
<PAGE>

be made in connection with the offering and distribution of the Initial
Securities upon written notice by the Representatives to the Company setting
forth the number of Option Securities as to which the several Underwriters are
then exercising the option and the time and date of payment and delivery for
such Option Securities. Any such time and date of delivery (a "Date of
Delivery") shall be determined by the Representatives, but shall not be later
than seven full business days after the exercise of said option, nor in any
event prior to the Closing Time, as hereinafter defined. If the option is
exercised as to all or any portion of the Option Securities, each of the
Underwriters, acting severally and not jointly, will purchase that proportion of
the total number of Option Securities then being purchased which the number of
Initial Securities set forth in SCHEDULE A opposite the name of such Underwriter
bears to the total number of Initial Securities, subject in each case to such
adjustments as the Representatives in their discretion shall make to eliminate
any sales or purchases of fractional shares.

     (c) PAYMENT. Payment of the purchase price for, and confirmation of the
transfer of, the Initial Securities shall be made at the offices of Ropes &
Gray, One International Place, Boston, Massachusetts, or at such other place as
shall be agreed upon by the Representatives and the Company, at 9:00 A.M.
(Eastern time) on the third (fourth, if the pricing occurs after 4:30 P.M.
(Eastern time) on any given day) business day after the date hereof (unless
postponed in accordance with the provisions of Section 10), or such other time
not later than ten business days after such date as shall be agreed upon by the
Representatives and the Company (such time and date of payment and delivery
being herein called the "Closing Time").

     In addition, in the event that any or all of the Option Securities are
purchased by the Underwriters, payment of the purchase price for, and transfer
of, such Option Securities shall be made at the above-mentioned offices, or at
such other place as shall be agreed upon by the Representatives and the Company,
on each Date of Delivery as specified in the notice from the Representatives to
the Company.

     Payment shall be made to the Company by wire transfer of immediately
available funds to a bank account designated by the Company against confirmation
of transfer to the Representatives for the respective accounts of the
Underwriters the Securities to be purchased by them. It is understood that each
Underwriter has authorized the Representatives, for its account, to accept
delivery of, receipt for, and make payment of the purchase price for, the
Initial Securities and the Option Securities, if any, which it has agreed to
purchase. CIBC, individually and not as representative of the Underwriters, may
(but shall not be obligated to) make payment of the purchase price for the
Initial Securities or the Option Securities, if any, to be purchased by any
Underwriter whose funds have not been received by the Closing Time or the
relevant Date of Delivery, as the case may be, but such payment shall not
relieve such Underwriter from its obligations hereunder.

     (d) DENOMINATIONS; REGISTRATION. The Initial Securities and the Option
Securities, if any, shall be in such denominations and registered in such names
as the Representatives may request in writing at least one full business day
before the Closing Time or the relevant Date of Delivery, as the case may be.


                                       11
<PAGE>

     SECTION 3. COVENANTS OF THE COMPANY. The Company covenants with each
Underwriter as follows:

     (a) COMPLIANCE WITH SECURITIES REGULATIONS AND COMMISSION REQUESTS. The
Company, subject to Section 3(b), will comply with the requirements of Rule 430A
or Rule 434, as applicable, and will notify the Representatives immediately, (i)
when any post-effective amendment to the Registration Statement shall become
effective, or any supplement to the Prospectus or any amended Prospectus shall
have been filed, (ii) of the receipt of any comments from the Commission, (iii)
of any request by the Commission for any amendment to the Registration Statement
or any amendment or supplement to the Prospectus or for additional information,
and (iv) of the issuance by the Commission of any stop order suspending the
effectiveness of the Registration Statement or of any order preventing or
suspending the use of any preliminary prospectus, or of the suspension of the
qualification of the Securities for offering or sale in any jurisdiction, or of
the initiation or threatening of any proceedings for any of such purposes. The
Company will promptly effect the filings necessary pursuant to Rule 424(b) and
will take such steps as it deems necessary to ascertain promptly whether the
form of prospectus transmitted for filing under Rule 424(b) was received for
filing by the Commission and, in the event that it was not, it will promptly
file such prospectus. The Company will make every reasonable effort to prevent
the issuance of any stop order and, if any stop order is issued, to obtain the
lifting thereof at the earliest possible moment.

     (b) FILING OF AMENDMENTS. The Company will give the Representatives notice
of its intention to file or prepare any amendment to the Registration Statement
(including any filing under Rule 462(b)), any Term Sheet or any amendment,
supplement or revision to either the prospectus included in the Registration
Statement at the time it became effective or to the Prospectus, whether pursuant
to the 1933 Act, the 1934 Act or otherwise, will furnish the Representatives
with copies of any such documents a reasonable amount of time prior to such
proposed filing or use, as the case may be, and will not file or use any such
document to which the Representatives or counsel for the Underwriters shall
reasonably object.

     (c) DELIVERY OF REGISTRATION STATEMENTS. The Company has furnished or will
deliver to the Representatives and counsel for the Underwriters, without charge,
signed copies of the Registration Statement as originally filed and of each
amendment thereto (including exhibits filed therewith or incorporated by
reference therein and documents incorporated or deemed to be incorporated by
reference therein) and signed copies of all consents and certificates of
experts, and will also deliver to the Representatives, without charge, a
conformed copy of the Registration Statement as originally filed and of each
amendment thereto (without exhibits) for each of the Underwriters. The copies of
the Registration Statement and each amendment thereto furnished to the
Underwriters will be identical to the electronically transmitted copies thereof
filed with the Commission pursuant to EDGAR, except to the extent permitted by
Regulation S-T.

     (d) DELIVERY OF PROSPECTUSES. The Company has delivered to each
Underwriter, without charge, as many copies of each preliminary prospectus as
such Underwriter reasonably requested, and the Company hereby consents to the
use of such copies for purposes permitted by the 1933 Act. The Company will
furnish to each Underwriter, without charge, during the period


                                       12
<PAGE>

when the Prospectus is required to be delivered under the 1933 Act or the 1934
Act, such number of copies of the Prospectus (as amended or supplemented) as
such Underwriter may reasonably request. The Prospectus and any amendments or
supplements thereto furnished to the Underwriters will be identical to the
electronically transmitted copies thereof filed with the Commission pursuant to
EDGAR, except to the extent permitted by Regulation S-T.

     (e) CONTINUED COMPLIANCE WITH SECURITIES LAWS. The Company will comply with
the 1933 Act and the 1933 Act Regulations and the 1934 Act and the 1934 Act
Regulations so as to permit the completion of the distribution of the Securities
as contemplated in this Agreement and in the Prospectus. If at any time when a
prospectus is required by the 1933 Act to be delivered in connection with sales
of the Securities, any event shall occur or condition shall exist as a result of
which it is necessary, in the opinion of counsel for the Underwriters or for the
Company, to amend the Registration Statement or amend or supplement the
Prospectus in order that the Prospectus will not include any untrue statements
of a material fact or omit to state a material fact necessary in order to make
the statements therein not misleading in the light of the circumstances existing
at the time it is delivered to a purchaser, or if it shall be necessary, in the
opinion of such counsel, at any such time to amend the Registration Statement or
amend or supplement the Prospectus in order to comply with the requirements of
the 1933 Act or the 1933 Act Regulations, the Company will promptly prepare and
file with the Commission, subject to Section 3(b), such amendment or supplement
as may be necessary to correct such statement or omission or to make the
Registration Statement or the Prospectus comply with such requirements, and the
Company will furnish to the Underwriters such number of copies of such amendment
or supplement as the Underwriters may reasonably request.

     (f) BLUE SKY QUALIFICATIONS. The Company will use its best efforts, in
cooperation with the Underwriters, to qualify the Securities for offering and
sale under the applicable securities laws of such states and other jurisdictions
(domestic or foreign) as the Representatives may designate and to maintain such
qualifications in effect for so long as necessary to complete the distribution
of the Securities; provided, however, that the Company shall not be obligated to
file any general consent to service of process or to qualify as a foreign
corporation or as a dealer in securities in any jurisdiction in which it is not
so qualified or to subject itself to taxation in respect of doing business in
any jurisdiction in which it is not otherwise so subject.

     (g) RULE 158. The Company will timely file such reports pursuant to the
1934 Act as are necessary in order to make generally available to its
securityholders as soon as practicable an earnings statement for the purposes
of, and to provide the benefits contemplated by, the last paragraph of Section
11(a) of the 1933 Act.

     (h) USE OF PROCEEDS. The Company will use the net proceeds received by it
from the sale of the Securities in the manner specified in the Prospectus under
"Use of Proceeds".

     (i) LISTING. The Company will use its best efforts to effect and maintain
the quotation of the Securities on the Nasdaq National Market and will file with
the Nasdaq National Market all documents and notices required by the Nasdaq
National Market of companies that have securities that are traded in the
over-the-counter market and quotations for which are reported by the Nasdaq
National Market.


                                       13
<PAGE>

     (j) RESTRICTION ON SALE OF SECURITIES. During a period of 90 days from the
date of the Prospectus, the Company will not, without the prior written consent
of CIBC, (i) directly or indirectly, offer, pledge, sell, contract to sell, sell
any option or contract to purchase, purchase any option or contract to sell,
grant any option, right or warrant to purchase or otherwise transfer or dispose
of any share of Common Stock or any securities convertible into or exercisable
or exchangeable for Common Stock or file any registration statement under the
1933 Act with respect to any of the foregoing or (ii) enter into any swap or any
other agreement or any transaction that transfers, in whole or in part, directly
or indirectly, the economic consequence of ownership of the Common Stock,
whether any such swap or transaction described in clause (i) or (ii) above is to
be settled by delivery of Common Stock or such other securities, in cash or
otherwise. The foregoing sentence shall not apply to (A) the Securities to be
sold hereunder, (B) any shares of Common Stock issued by the Company upon the
exercise of an option or warrant or the conversion of a security outstanding on
the date hereof and referred to in the Prospectus, (C) any shares of Common
Stock issued or options to purchase Common Stock granted pursuant to existing
employee benefit plans of the Company referred to in the Prospectus or (D) any
shares of Common Stock issued by the Company in connection with the acquisition
by the Company of the assets or capital stock of another entity.

     (k) REPORTING REQUIREMENTS. The Company, during the period when the
Prospectus is required to be delivered under the 1933 Act or the 1934 Act, will
file all documents required to be filed with the Commission pursuant to the 1934
Act within the time periods required by the 1934 Act and the 1934 Act
Regulations.

     (l) COMPLIANCE WITH NASD RULES. The Company hereby agrees that it will
ensure that the Reserved Securities will be restricted as required by the
National Association of Securities Dealers, Inc. (the "NASD") or the NASD rules
from sale, transfer, assignment, pledge or hypothecation for a period of three
months following the date of this Agreement. The Underwriters will notify the
Company as to which persons will need to be so restricted. At the request of the
Underwriters, the Company will direct the transfer agent to place a stop
transfer restriction upon such securities for such period of time. Should the
Company release, or seek to release, from such restrictions any of the Reserved
Securities, the Company agrees to reimburse the Underwriters for any reasonable
expenses (including, without limitation, legal expenses) they incur in
connection with such release.

     SECTION 4. PAYMENT OF EXPENSES.

     (a) EXPENSES. Whether or not the transactions contemplated by this
agreement are consummated or this agreement is terminated, the Company will pay
or cause to be paid all expenses incident to the performance of its obligations
under this Agreement, including (i) the preparation, printing and filing of the
Registration Statement (including financial statements and exhibits) as
originally filed and of each amendment thereto, (ii) the preparation, printing
and delivery to the Underwriters of this Agreement, any Agreement among
Underwriters and such other documents as may be required in connection with the
offering, purchase, sale, issuance or delivery of the Securities, (iii) the
preparation, issuance and transfer of the Securities to the Underwriters,
including any stock or other transfer taxes and any stamp or other duties
payable upon the sale, issuance or transfer of the Securities to the
Underwriters, (iv) the fees and


                                       14
<PAGE>

disbursements of the Company's counsel, accountants and other advisors, (v) the
qualification of the Securities under securities laws in accordance with the
provisions of Section 3(f) hereof, including filing fees and the reasonable fees
and disbursements of counsel for the Underwriters in connection therewith and in
connection with the preparation of the Blue Sky Survey and any supplement
thereto, (vi) the printing and delivery to the Underwriters of copies of each
preliminary prospectus, any Term Sheets and of the Prospectus and any amendments
or supplements thereto, (vii) the preparation, printing and delivery to the
Underwriters of copies of the Blue Sky Survey and any supplement thereto, (viii)
the fees and expenses of any transfer agent or registrar for the Securities,
(ix) the filing fees incident to, and the reasonable fees and disbursements of
counsel to the Underwriters in connection with, the review by the NASD of the
terms of the sale of the Securities, and (x) the fees and expenses incurred in
connection with the inclusion of the Securities in the Nasdaq National Market.

     (b) TERMINATION OF AGREEMENT. If this Agreement is terminated by the
Representatives in accordance with the provisions of Section 5 or Section
9(a)(i) hereof, the Company shall reimburse the Underwriters for all of their
out-of-pocket expenses, including the reasonable fees and disbursements of
counsel for the Underwriters.

     SECTION 5. CONDITIONS OF UNDERWRITERS' OBLIGATIONS. The obligations of the
several Underwriters hereunder are subject to the accuracy of the
representations and warranties of the Company contained in Section 1 hereof or
in certificates of any officer of the Company delivered pursuant to the
provisions hereof, to the performance by the Company of its covenants and other
obligations hereunder, and to the following further conditions:

     (a) EFFECTIVENESS OF REGISTRATION STATEMENT. The Registration Statement,
including any Rule 462(b) Registration Statement, has become effective and at
the Closing Time no stop order suspending the effectiveness of the Registration
Statement shall have been issued under the 1933 Act or proceedings therefor
initiated or threatened by the Commission, and any request on the part of the
Commission for additional information shall have been complied with to the
reasonable satisfaction of counsel to the Underwriters. A prospectus containing
the Rule 430A Information shall have been filed with the Commission in
accordance with Rule 424(b) (or a post-effective amendment providing such
information shall have been filed and declared effective in accordance with the
requirements of Rule 430A) or, if the Company has elected to rely upon Rule 434,
a Term Sheet shall have been filed with the Commission in accordance with Rule
424(b).

     (b) OPINION OF COUNSEL FOR THE COMPANY. At the Closing Time, the
Representatives shall have received the favorable opinions, dated as of the
Closing Time, of (i) Hale and Dorr LLP, counsel for the Company, and (ii)
Edwards & Angell LLP, intellectual property counsel for the Company, each in
form and substance reasonably satisfactory to counsel for the Underwriters,
together with signed or reproduced copies of such letters for each of the other
Underwriters to the effect set forth in EXHIBIT A and EXHIBIT B hereto,
respectively.

     (c) OPINION OF COUNSEL FOR UNDERWRITERS. At Closing Time, the
Representatives shall have received the favorable opinion, dated as of the
Closing Time, of Ropes & Gray, counsel for the Underwriters, together with
signed or reproduced copies of such letter for each of the other


                                       15
<PAGE>

Underwriters with respect to the matters set forth in clauses (i), (ii), (v),
(vi) (solely as to preemptive or other similar rights arising by operation of
law or under the charter or by-laws of the Company), (viii) through (x),
inclusive, (xiv) (solely as to the information in the Prospectus under
"Description of Capital Stock--Common Stock") and the penultimate paragraph of
EXHIBIT A hereto. In giving such opinion such counsel may rely, as to all
matters governed by the laws of jurisdictions other than the law of the
Commonwealth of Massachusetts and the federal law of the United States and the
General Corporation Law of the State of Delaware, upon the opinions of counsel
satisfactory to the Representatives. Such counsel may also state that, insofar
as such opinion involves factual matters, they have relied, to the extent they
deem proper, upon certificates of officers of the Company and its Subsidiaries
and certificates of public officials.

     (d) OFFICERS' CERTIFICATE. At the Closing Time, there shall not have been,
since the date hereof or since the respective dates as of which information is
given in the Prospectus, any material adverse change in the condition, financial
or otherwise, or in the earnings, business affairs or business prospects
described in the Prospectus of the Company and its Subsidiaries considered as
one enterprise, whether or not arising in the ordinary course of business, and
the Representatives shall have received a certificate of the President or a Vice
President of the Company and the chief financial or chief accounting officer of
the Company, dated as of the Closing Time, to the effect that (i) there has been
no such material adverse change, (ii) the representations and warranties in
Section 1(a) hereof are true and correct with the same force and effect as
though expressly made at and as of the Closing Time, (iii) the Company has
complied with all agreements and satisfied all conditions on its part to be
performed or satisfied at or prior to the Closing Time, and (iv) no stop order
suspending the effectiveness of the Registration Statement has been issued and
no proceedings for that purpose have been instituted or are pending or are
contemplated by the Commission.

     (e) ACCOUNTANT'S COMFORT LETTER. At the time of the execution of this
Agreement, the Representatives shall have received from each of Arthur Andersen
LLP and PricewaterhouseCoopers LLP a letter dated such date, in form and
substance satisfactory to the Representatives, together with signed or
reproduced copies of such letter for each of the other Underwriters containing
statements and information of the type ordinarily included in accountants'
"comfort letters" to underwriters with respect to the financial statements and
certain financial information contained in the Registration Statement and the
Prospectus.

     (f) BRING-DOWN COMFORT LETTER. At the Closing Time, the Representatives
shall have received from each of Arthur Andersen LLP and PricewaterhouseCoopers
LLP a letter, dated as of the Closing Time, to the effect that they reaffirm the
statements made in the letter furnished pursuant to subsection (e) of this
Section, except that the specified date referred to shall be a date not more
than three business days prior to the Closing Time.

     (g) APPROVAL OF LISTING. At the Closing Time, the Securities shall have
been approved for inclusion in the Nasdaq National Market, subject only to
official notice of issuance.

     (h) NO OBJECTION. The NASD has confirmed that it has not raised any
objection with respect to the fairness and reasonableness of the underwriting
terms and arrangements.


                                       16
<PAGE>

     (i) LOCK-UP AGREEMENTS. At the date of this Agreement, the Representatives
shall have received an agreement substantially in the form of EXHIBIT C hereto
signed by the persons listed on SCHEDULE E hereto.

     (j) CONDITIONS TO PURCHASE OF OPTION SECURITIES. In the event that the
Underwriters exercise their option provided in Section 2(b) hereof to purchase
all or any portion of the Option Securities, the representations and warranties
of the Company contained herein and the statements in any certificates furnished
by the Company or any Subsidiary of the Company hereunder shall be true and
correct as of each Date of Delivery and, at the relevant Date of Delivery, the
Representatives shall have received:

          (i) OFFICERS' CERTIFICATE. A certificate, dated such Date of Delivery,
     of the President or a Vice President of the Company and the chief financial
     or chief accounting officer of the Company confirming that the certificate
     delivered at the Closing Time pursuant to Section 5(d) hereof remains true
     and correct as of such Date of Delivery.

          (ii) OPINION OF COUNSEL FOR COMPANY. The favorable opinions of (i)
     Hale and Dorr LLP, counsel for the Company, and (ii) Edwards & Angell, LLP,
     intellectual property counsel for the Company, each in form and substance
     satisfactory to counsel for the Underwriters, dated such Date of Delivery,
     relating to the Option Securities to be purchased on such Date of Delivery
     and otherwise to the same effect as the opinion required by Section 5(b)
     hereof.

          (iii) OPINION OF COUNSEL FOR UNDERWRITERS. The favorable opinion of
     Ropes & Gray, counsel for the Underwriters, dated such Date of Delivery,
     relating to the Option Securities to be purchased on such Date of Delivery
     and otherwise to the same effect as the opinion required by Section 5(c)
     hereof.

          (iv) BRING-DOWN COMFORT LETTER. A letter from each of Arthur Andersen
     LLP and PricewaterhouseCoopers LLP, in form and substance satisfactory to
     the Representatives and dated such Date of Delivery, substantially in the
     same form and substance as the letter furnished to the Representatives
     pursuant to Section 5(e) hereof, except that the "specified date" in the
     letter furnished pursuant to this paragraph shall be a date not more than
     three days prior to such Date of Delivery.

     (k) ADDITIONAL DOCUMENTS. At the Closing Time and at each Date of Delivery
counsel for the Underwriters shall have been furnished with such documents and
opinions as they may require for the purpose of enabling them to pass upon the
issuance and sale of the Securities as herein contemplated, or in order to
evidence the accuracy of any of the representations or warranties, or the
fulfillment of any of the conditions, herein contained; and all proceedings
taken by the Company in connection with the issuance and sale of the Securities
as herein contemplated shall be satisfactory in form and substance to the
Representatives and counsel for the Underwriters.

     (l) TERMINATION OF AGREEMENT. If any condition specified in this Section
shall not have been fulfilled when and as required to be fulfilled, this
Agreement, or, in the case of any condition to the purchase of Option Securities
on a Date of Delivery which is after the Closing


                                       17
<PAGE>

Time, the obligations of the several Underwriters to purchase the relevant
Option Securities, may be terminated by the Representatives by written notice to
the Company at any time at or prior to Closing Time or such Date of Delivery, as
the case may be, and such termination shall be without liability of any party to
any other party except as provided in Section 4 and except that Sections 1, 6, 7
and 8 shall survive any such termination and remain in full force and effect.

     SECTION 6. INDEMNIFICATION.

     (a) INDEMNIFICATION OF UNDERWRITERS. (1) The Company agrees to indemnify
and hold harmless each Underwriter and each person, if any, who controls any
Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of
the 1934 Act:

          (i) against any and all loss, liability, claim, damage and expense
     whatsoever, as incurred, arising out of any untrue statement or alleged
     untrue statement of a material fact contained in the Registration Statement
     (or any amendment thereto), including the Rule 430A Information and the
     Rule 434 Information, if applicable, or the omission or alleged omission
     therefrom of a material fact required to be stated therein or necessary to
     make the statements therein not misleading or arising out of any untrue
     statement or alleged untrue statement of a material fact included in any
     preliminary prospectus or the Prospectus (or any amendment or supplement
     thereto), or the omission or alleged omission therefrom of a material fact
     necessary in order to make the statements therein, in the light of the
     circumstances under which they were made, not misleading;

          (ii) against any and all loss, liability, claim, damage and expense
     whatsoever, as incurred, to the extent of the aggregate amount paid in
     settlement (subject to Section 6(d) below) of any litigation, or any
     investigation or proceeding by any governmental agency or body, commenced
     or threatened, or of any claim whatsoever based upon any such untrue
     statement or omission; and

          (iii) against any and all expense whatsoever, as incurred (including
     the fees and disbursements of counsel chosen by CIBC), reasonably incurred
     in investigating, preparing or defending against any litigation, or any
     investigation or proceeding by any governmental agency or body, commenced
     or threatened, or any claim whatsoever based upon any such untrue statement
     or omission, or any such alleged untrue statement or omission, to the
     extent that any such expense is not paid under (i) or (ii) above;

PROVIDED, HOWEVER, that this indemnity agreement shall not apply to any loss,
liability, claim, damage or expense to the extent arising out of any untrue
statement or omission or alleged untrue statement or omission made in reliance
upon and in conformity with written information furnished to the Company by any
Underwriter through CIBC expressly for use in the Registration Statement (or any
amendment thereto), including the Rule 430A Information and the Rule 434
Information, if applicable, or any preliminary prospectus or the Prospectus (or
any amendment or supplement thereto), and provided further, the Company shall
not be liable to any Underwriter under this Section 6(a) with respect to any
preliminary prospectus to the extent that any such loss, claim, damage or
liability of such Underwriter results from an untrue statement of a material
fact contained in, or the omission of a material fact from, such preliminary
prospectus, which untrue statement or omission was corrected in the Prospectus
if such Underwriter sold


                                       18
<PAGE>

shares of Common Stock to the person alleging such loss, claim, damage or
liability without sending or giving, at or prior to the written confirmation of
such sale, a copy of the Prospectus if the Company had previously furnished
copies thereof to such Underwriter.

     (2) Insofar as this indemnity agreement may permit indemnification for
liabilities under the 1933 Act of any person who is a partner of an Underwriter
or who controls an underwriter within the meaning of Section 15 of the 1933 Act
or Section 20 of the 1934 Act and who, at the date of this Agreement, is a
director or officer of the Company or controls the Company within the meaning of
Section 15 of the 1933 Act or Section 20 of the 1934 Act, such indemnity
agreement is subject to the undertaking of the Company in the Registration
Statement under Item 13 thereof.

     (b) INDEMNIFICATION OF COMPANY, DIRECTORS AND OFFICERS. Each Underwriter
severally agrees to indemnify and hold harmless the Company, its directors, each
of its officers who signed the Registration Statement, and each person, if any,
who controls the Company within the meaning of Section 15 of the 1933 Act or
Section 20 of the 1934 Act against any and all loss, liability, claim, damage
and expense described in the indemnity contained in subsection (a) of this
Section, as incurred, but only with respect to untrue statements or omissions,
or alleged untrue statements or omissions, made in the Registration Statement
(or any amendment thereto), including the Rule 430A Information and the Rule 434
Information, if applicable, or any preliminary prospectus or the Prospectus (or
any amendment or supplement thereto) in reliance upon and in conformity with
written information furnished to the Company by such Underwriter through CIBC
expressly for use in the Registration Statement (or any amendment thereto) or
such preliminary prospectus or the Prospectus (or any amendment or supplement
thereto), and will reimburse the Company, its directors, officers and
controlling persons, as the case may be, for any legal or other expenses
reasonably incurred in connection with the investigating or defending any such
action or claim as such expenses are incurred.

     (c) ACTIONS AGAINST PARTIES; NOTIFICATION. Each indemnified party shall
give notice as promptly as reasonably practicable to each indemnifying party of
any action commenced against it in respect of which indemnity may be sought
hereunder, but failure to so notify an indemnifying party shall not relieve such
indemnifying party from any liability hereunder to the extent it is not
materially prejudiced as a result thereof and in any event shall not relieve it
from any liability which it may have otherwise than on account of this indemnity
agreement. In case any such action is brought against any indemnified party, and
it notifies an indemnifying party of the commencement thereof, the indemnifying
party will be entitled to participate therein, and to the extent it may elect by
written notice delivered to the indemnified party promptly after receiving the
aforesaid notice from such indemnified party, to assume the defense thereof with
counsel reasonably satisfactory to such indemnified party. Notwithstanding the
foregoing, the indemnified party or parties shall have the right to employ its
or their own counsel in any such case, but the fees and expenses of such counsel
shall be at the expense of such indemnified party or parties unless (i) the
employment of such counsel shall have been authorized in writing by one of the
indemnifying parties in connection with the defense of such action, (ii) the
indemnifying parties shall not have employed counsel to take charge of the
defense of such action within a reasonable time after notice of commencement of
the action, or (iii) such indemnified party or parties shall have reasonably
concluded that there may be defenses available to it or them which


                                       19
<PAGE>

are different from or additional to those available to one or all of the
indemnifying parties (in which case the indemnifying party or parties shall not
have the right to direct the defense of such action on behalf of the indemnified
party or parties), in any of which events such fees and expenses of counsel
shall be borne by the indemnifying parties. In no event shall the indemnifying
parties be liable for fees and expenses of more than one counsel (in addition to
any local counsel) separate from their own counsel for all indemnified parties
in connection with any one action or separate but similar or related actions in
the same jurisdiction arising out of the same general allegations or
circumstances. No indemnifying party shall, without the prior written consent of
the indemnified parties, settle or compromise or consent to the entry of any
judgment with respect to any litigation, or any investigation or proceeding by
any governmental agency or body, commenced or threatened, or any claim
whatsoever in respect of which indemnification or contribution could be sought
under this Section 6 or Section 7 hereof (whether or not the indemnified parties
are actual or potential parties thereto), unless such settlement, compromise or
consent (i) includes an unconditional release of each indemnified party from all
liability arising out of such litigation, investigation, proceeding or claim and
(ii) does not include a statement as to or an admission of fault, culpability or
a failure to act by or on behalf of any indemnified party.

     (d) SETTLEMENT. An indemnifying party shall not be liable for any
settlement of any proceeding effected without its written consent, but if
settled with such consent, the indemnifying party agrees to indemnify the
indemnified party from and against any loss or liability by reason of such
settlement.

     SECTION 7. CONTRIBUTION. If the indemnification provided for in Section 6
hereof is for any reason unavailable to or insufficient to hold harmless an
indemnified party in respect of any losses, liabilities, claims, damages or
expenses referred to therein, then each indemnifying party shall contribute to
the aggregate amount of such losses, liabilities, claims, damages and expenses
incurred by such indemnified party, as incurred, (i) in such proportion as is
appropriate to reflect the relative benefits received by the Company on the one
hand and the Underwriters on the other hand from the offering of the Securities
pursuant to this Agreement or (ii) if the allocation provided by clause (i) is
not permitted by applicable law, in such proportion as is appropriate to reflect
not only the relative benefits referred to in clause (i) above but also the
relative fault of the Company on the one hand and of the Underwriters on the
other hand in connection with the statements or omissions, which resulted in
such losses, liabilities, claims, damages or expenses, as well as any other
relevant equitable considerations.

     The relative benefits received by the Company on the one hand and the
Underwriters on the other hand in connection with the offering of the Securities
pursuant to this Agreement shall be deemed to be in the same respective
proportions as the total net proceeds from the offering of the Securities
pursuant to this Agreement (before deducting expenses) received by the Company
and the total underwriting discount received by the Underwriters, in each case
as set forth on the cover of the Prospectus, or, if Rule 434 is used, the
corresponding location on the Term Sheet bear to the aggregate initial public
offering price of the Securities as set forth on such cover.

     The relative fault of the Company on the one hand and the Underwriters on
the other hand shall be determined by reference to, among other things, whether
any such untrue or


                                       20
<PAGE>

alleged untrue statement of a material fact or omission or alleged omission to
state a material fact relates to information supplied by the Company or by the
Underwriters and the parties' relative intent, knowledge, access to information
and opportunity to correct or prevent such statement or omission.

     The Company and the Underwriters agree that it would not be just and
equitable if contribution pursuant to this Section 7 were determined by pro rata
allocation (even if the Underwriters were treated as one entity for such
purpose) or by any other method of allocation which does not take account of the
equitable considerations referred to above in this Section 7. The aggregate
amount of losses, liabilities, claims, damages and expenses incurred by an
indemnified party and referred to above in this Section 7 shall be deemed to
include any legal or other expenses reasonably incurred by such indemnified
party in investigating, preparing or defending against any litigation, or any
investigation or proceeding by any governmental agency or body, commenced or
threatened, or any claim whatsoever based upon any such untrue or alleged untrue
statement or omission or alleged omission.

     Notwithstanding the provisions of this Section 7, no Underwriter shall be
required to contribute any amount in excess of the amount by which the total
price at which the Securities underwritten by it and distributed to the public
were offered to the public exceeds the amount of any damages which such
Underwriter has otherwise been required to pay by reason of any such untrue or
alleged untrue statement or omission or alleged omission.

     No person guilty of fraudulent misrepresentation (within the meaning of
Section 11(f) of the 1933 Act) shall be entitled to contribution from any person
who was not guilty of such fraudulent misrepresentation.

     For purposes of this Section 7, each person, if any, who controls an
Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of
the 1934 Act shall have the same rights to contribution as such Underwriter, and
each director of the Company, each officer of the Company who signed the
Registration Statement, and each person, if any, who controls the Company within
the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act shall
have the same rights to contribution as the Company. The Underwriters'
respective obligations to contribute pursuant to this Section 7 are several in
proportion to the number of Initial Securities set forth opposite their
respective names in SCHEDULE A hereto and not joint.

     SECTION 8. REPRESENTATIONS, WARRANTIES AND AGREEMENTS TO SURVIVE DELIVERY.
All representations, warranties and agreements contained in this Agreement or in
certificates of officers of the Company submitted pursuant hereto, shall remain
operative and in full force and effect, regardless of any investigation made by
or on behalf of any Underwriter or controlling person, or by or on behalf of the
Company, and shall survive delivery of the Securities to the Underwriters.

     SECTION 9. TERMINATION OF AGREEMENT.

     (a) TERMINATION; GENERAL. The Representatives may terminate this Agreement,
by written notice to the Company, at any time at or prior to the Closing Time
(i) if there has been, since the time of execution of this Agreement or since
the respective dates as of which


                                       21
<PAGE>

information is given in the Prospectus, any material adverse change in the
condition, financial or otherwise, or in the earnings, or business affairs or
business prospects described in the Prospectus of the Company and its
Subsidiaries considered as one enterprise, whether or not arising in the
ordinary course of business, or (ii) if there has occurred any material adverse
change in the financial markets in the United States, any outbreak of
hostilities or escalation thereof or other calamity or crisis or any change or
development involving a prospective change in national or international
political, financial or economic conditions, in each case the effect of which is
such as to make it, in the judgment of the Representatives, impracticable to
market the Securities or to enforce contracts for the sale of the Securities, or
(iii) if trading in any securities of the Company has been suspended or
materially limited by the Commission or the Nasdaq National Market, or if
trading generally on the American Stock Exchange or the New York Stock Exchange
or in the Nasdaq National Market has been suspended or materially limited, or
minimum or maximum prices for trading have been fixed, or maximum ranges for
prices have been required, by any of said exchanges or by such system or by
order of the Commission, the National Association of Securities Dealers, Inc. or
any other governmental authority, or (iv) if a banking moratorium has been
declared by either Federal or New York authorities.

     (b) LIABILITIES. If this Agreement is terminated pursuant to this Section,
such termination shall be without liability of any party to any other party
except as provided in Section 4 hereof, and provided further that Sections 1, 6,
7 and 8 shall survive such termination and remain in full force and effect.

     SECTION 10. DEFAULT BY ONE OR MORE OF THE UNDERWRITERS. If one or more of
the Underwriters shall fail at the Closing Time or a Date of Delivery to
purchase the Securities which it or they are obligated to purchase under this
Agreement (the "Defaulted Securities"), the Representatives shall have the
right, within 24 hours thereafter, to make arrangements for one or more of the
non-defaulting Underwriters, or any other underwriters, to purchase all, but not
less than all, of the Defaulted Securities in such amounts as may be agreed upon
and upon the terms herein set forth; if, however, the Representatives shall not
have completed such arrangements within such 24-hour period, then:

     (a) if the number of Defaulted Securities does not exceed 10% of the number
of Securities to be purchased on such date, each of the non-defaulting
Underwriters shall be obligated, severally and not jointly, to purchase the full
amount thereof in the proportions that their respective underwriting obligations
hereunder bear to the underwriting obligations of all non-defaulting
Underwriters, or

     (b) if the number of Defaulted Securities exceeds 10% of the number of
Securities to be purchased on such date, this Agreement or, with respect to any
Date of Delivery which occurs after the Closing Time, the obligation of the
Underwriters to purchase and of the Company to sell the Option Securities to be
purchased and sold on such Date of Delivery shall terminate without liability on
the part of any non-defaulting Underwriter.

     No action taken pursuant to this Section shall relieve any defaulting
Underwriter from liability in respect of its default.


                                       22
<PAGE>

     In the event of any such default which does not result in a termination of
this Agreement or, in the case of a Date of Delivery which is after the Closing
Time, which does not result in a termination of the obligation of the
Underwriters to purchase and the Company to sell the relevant Option Securities,
as the case may be, either (i) the Representatives or (ii) the Company shall
have the right to postpone the Closing Time or the relevant Date of Delivery, as
the case may be, for a period not exceeding seven days in order to effect any
required changes in the Registration Statement or Prospectus or in any other
documents or arrangements. As used herein, the term "Underwriter" includes any
person substituted for an Underwriter under this Section 10.

     SECTION 11. NOTICES. All notices and other communications hereunder shall
be in writing and shall be deemed to have been duly given if mailed or
transmitted by any standard form of telecommunication. Notices to the
Underwriters shall be directed to the Representatives at 425 Lexington Avenue,
New York, New York 10017, attention of Jay Hatfield; and notices to the Company
shall be directed to it at 161 First Street, Cambridge, Massachusetts
02142-1221, attention of David B. Eisenhaure, with a copy to Hale and Dorr LLP,
60 State Street, Boston, Massachusetts 02109, attention of Jeffrey N. Carp.

     SECTION 12. PARTIES. This Agreement shall each inure to the benefit of and
be binding upon the Underwriters and the Company and their respective
successors. Nothing expressed or mentioned in this Agreement is intended or
shall be construed to give any person, firm or corporation, other than the
Underwriters and the Company and their respective successors and the controlling
persons and officers and directors referred to in Sections 6 and 7 and their
heirs and legal representatives, any legal or equitable right, remedy or claim
under or in respect of this Agreement or any provision herein contained. This
Agreement and all conditions and provisions hereof are intended to be for the
sole and exclusive benefit of the Underwriters and the Company and their
respective successors, and said controlling persons and officers and directors
and their heirs and legal representatives, and for the benefit of no other
person, firm or corporation. No purchaser of Securities from any Underwriter
shall be deemed to be a successor by reason merely of such purchase.

     SECTION 13. GOVERNING LAW AND TIME. THIS AGREEMENT SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. EXCEPT AS
OTHERWISE SET FORTH HEREIN, SPECIFIED TIMES OF DAY REFER TO NEW YORK CITY TIME.

     SECTION 14. EFFECT OF HEADINGS. The Article and Section headings herein and
the Table of Contents are for convenience only and shall not affect the
construction hereof.


                                       23
<PAGE>

     If the foregoing is in accordance with your understanding of our agreement,
please sign and return to the Company a counterpart hereof, whereupon this
instrument, along with all counterparts, will become a binding agreement among
the Underwriters and the Company in accordance with its terms.

                                     Very truly yours,

                                     SATCON TECHNOLOGY CORPORATION



                                     By:___________________________________
                                     Name:
                                     Title:






CONFIRMED AND ACCEPTED,
  as of the date first above written:


CIBC WORLD MARKETS CORP.
BANC OF AMERICA SECURITIES LLC
FAC/EQUITIES, A DIVISION OF
  FIRST ALBANY CORPORATION

By: CIBC WORLD MARKETS CORP.


By: _________________________________
          Authorized Signatory

     For themselves and as Representatives of the other Underwriters named in
SCHEDULE A hereto.


                                       24
<PAGE>

                                   SCHEDULE A

<TABLE>
<CAPTION>
                                                                                                 Number of
Name of Underwriter                                                                          Initial Securities
-------------------                                                                          ------------------
<S>                                                                                             <C>
CIBC World Markets Corp.................................................................
Banc of America Securities LLC..........................................................
FAC/Equities, a division of First Albany Corporation....................................








          Total.........................................................................        ---------
                                                                                                [       ]
                                                                                                =========
</TABLE>


                                       25
<PAGE>

                                   SCHEDULE B

<TABLE>
<CAPTION>
                                                  Number of Initial                  Maximum Number of Option
                                                Securities to be Sold                  Securities to be Sold
                                                ---------------------                ------------------------
<S>                                             <C>                                  <C>
SATCON TECHNOLOGY
CORPORATION
</TABLE>


                                       26
<PAGE>

                                   SCHEDULE C

                          SATCON TECHNOLOGY CORPORATION
                           [o] Shares of Common Stock
                           (Par Value $.01 Per Share)



     1. The initial public offering price per share for the Securities,
determined as provided in said Section 2, shall be $[o].

     2. The purchase price per share for the Securities to be paid by the
several Underwriters shall be $[o], being an amount equal to the initial public
offering price set forth above less $[o] per share; provided that the purchase
price per share for any Option Securities purchased upon the exercise of the
over-allotment option described in Section 2(b) shall be reduced by an amount
per share equal to any dividends or distributions declared by the Company and
payable on the Initial Securities but not payable on the Option Securities.


                                       27
<PAGE>

                                   SCHEDULE D

                               SCHEDULE OF PATENTS


                                       28
<PAGE>

                                   SCHEDULE E

                          LIST OF PERSONS AND ENTITIES
                               SUBJECT TO LOCK-UP


Marshall J. Armstrong
Duquesne Enterprises
David B. Eisenhaure
Alan P. Goldberg
Thomas A. Hurkmans
James L. Kirtley, Jr.
Mechanical Technology Incorporated
Sean F. Moran
Michael C. Turmelle
Gerald L. Wilson


                                       29
<PAGE>

                                                                       EXHIBIT A



                      FORM OF OPINION OF COMPANY'S COUNSEL
                   TO BE DELIVERED PURSUANT TO SECTION 5(b)(i)


         (i) The Company has been duly incorporated and is validly existing as a
corporation in good standing under the laws of the State of Delaware.

         (ii) The Company has the corporate power and authority to own, lease
and operate its properties and to conduct its business as described in the
Prospectus and to enter into and perform its obligations under the Underwriting
Agreement.

         (iii) The Company is duly qualified as a foreign corporation to
transact business and is in good standing in each jurisdiction listed on
SCHEDULE A attached hereto.

          (iv) The authorized, issued and outstanding capital stock of record of
the Company is as set forth in the Prospectus in the column entitled "Actual"
under the caption "Capitalization" as of the date set forth therein; the shares
of issued and outstanding capital stock of record of the Company have been duly
authorized and validly issued and are fully paid and non-assessable.

         (v) The Securities to be purchased by the Underwriters from the Company
have been duly authorized for issuance and sale to the Underwriters pursuant to
the Underwriting Agreement and, when issued and delivered by the Company
pursuant to the Underwriting Agreement against payment of the consideration set
forth in the Underwriting Agreement, will be validly issued and fully paid and
non-assessable.

         (vi) The issuance and sale of the Securities by the Company is not
subject to any statutory preemptive rights or, to our knowledge, other similar
contractual preemptive rights of any securityholder of the Company.

         (vii) Each Subsidiary has been duly incorporated and is validly
existing as a corporation in good standing under the laws of the jurisdiction of
its incorporation, has corporate power and authority to (a) own, lease and
operate its properties and (b) to conduct its business, in each case, as
described in the Prospectus and is duly qualified as a foreign corporation to
transact business and is in good standing in each jurisdiction listed on
SCHEDULE A attached hereto. Except as otherwise disclosed in the Registration
Statement, all of the issued and outstanding capital stock of record of each
Subsidiary has been duly authorized and validly issued, is fully paid and
non-assessable and, to our knowledge, is owned of record by the Company free and
clear of any security interest, mortgage, pledge, lien, encumbrance, claim or
equity.

          (viii) The Underwriting Agreement has been duly authorized, executed
and delivered by the Company.


                                       30
<PAGE>

         (ix) The Registration Statement, including any Rule 462(b) Registration
Statement, has been declared effective under the 1933 Act; any required filing
of the Prospectus pursuant to Rule 424(b) has been made in the manner and within
the time period required by Rule 424(b); and, to our knowledge, (i) no stop
order suspending the effectiveness of the Registration Statement or any Rule
462(b) Registration Statement has been issued under the 1933 Act; and (ii) no
proceedings for that purpose have been instituted or are pending or threatened
by the Commission.

         (x) The Registration Statement, including any Rule 462(b) Registration
Statement, the Rule 430A Information and the Rule 434 Information, as
applicable, the Prospectus, excluding the documents incorporated by reference
therein, and each amendment or supplement to the Registration Statement and
Prospectus, excluding the documents incorporated by reference therein, as of
their respective effective or filing dates (other than the financial statements,
supporting schedules and other financial or accounting data included therein or
omitted therefrom, as to which we express no opinion) complied as to form in all
material respects with the requirements of the 1933 Act and the 1933 Act
Regulations.

         (xi) The documents incorporated by reference in the Prospectus (other
than the financial statements, supporting schedules and other financial or
accounting data included therein or omitted therefrom, as to which we express no
opinion), when they became effective or were filed, or in the case of documents
that have been amended, when the amendments became effective or were filed, with
the Commission, as the case may be, complied as to form in all material respects
with the requirements of the 1933 Act or the 1934 Act, as applicable, and the
rules and regulations of the Commission thereunder.

         (xii) The form of certificate used to evidence the Common Stock
complies in all material respects with all applicable statutory requirements,
with any applicable requirements of the charter and by-laws of the Company and
the requirements of the Nasdaq National Market.

         (xiii) To our knowledge, there are no material legal or governmental
proceedings pending or threatened against the Company or any of its Subsidiaries
required to be described in the Prospectus which are not described as required.

          (xiv) Information in the Prospectus under "Description of Capital
Stock," and in the Registration Statement under Item 15, to the extent that it
constitutes matters of law, summaries of legal matters, or legal conclusions,
has been reviewed by us and is correct in all material respects.

         (xv) To our knowledge, there are no contracts or other documents
required to be described or referred to in the Registration Statement or to be
filed as exhibits thereto other than those described or referred to therein or
filed or incorporated by reference as exhibits thereto.

         (xvi) To our knowledge, the Company is not in violation of its charter
or by-laws and no default by the Company exists in the due performance or
observance of any material obligation, agreement, covenant or condition
contained in any contract, indenture, mortgage, loan agreement, note, lease or
other agreement or instrument that is described or referred to in


                                       31
<PAGE>

the Registration Statement or the Prospectus or filed or incorporated by
reference as an exhibit to the Registration Statement.

         (xvii) No filing with, or authorization, approval, consent, license,
order, registration, qualification or decree of, any court or governmental
authority or agency, domestic or foreign (other than under the 1933 Act and the
1933 Act Regulations, which have been obtained, or as may be required under the
securities or blue sky laws of the various states or the securities laws of any
foreign jurisdictions, as to which we express no opinion) is necessary or
required in connection with the due authorization, execution and delivery of the
Underwriting Agreement by the Company or for the Company's offering, issuance,
sale or delivery of the Securities.

         (xviii) The execution, delivery and performance of the Underwriting
Agreement by the Company and the consummation by the Company of the transactions
contemplated in the Underwriting Agreement and in the Registration Statement and
compliance by the Company with its obligations under the Underwriting Agreement
do not and will not, whether with or without the giving of notice or lapse of
time or both, conflict with or constitute a breach of, or default or Repayment
Event (as defined in Section 1(a)(xi) of the Underwriting Agreement) under or
result in the creation or imposition of any lien, charge or encumbrance upon any
property or assets of the Company or any Subsidiary pursuant to any contract or
instrument filed as an exhibit to or incorporated by reference in the
Registration Statement (except for such conflicts, breaches or defaults or
liens, charges or encumbrances that would not have a Material Adverse Effect),
nor will such action result in any violation of the provisions of the charter or
by-laws of the Company or any Subsidiary, or any United States federal or
Massachusetts state law, statute, rule or regulation known to us, the Delaware
General Corporation Law or any judgment, order, writ or decree specifically
naming the Company or any Subsidiary and known to us of any government,
government instrumentality or court, domestic or foreign, having jurisdiction
over the Company or any subsidiary or any of their respective properties, assets
or operations.

         (xix) The Company is not an "investment company" or an entity
"controlled" by an "investment company," as such terms are defined in the 1940
Act.

         In addition, counsel shall advise us of the following:

         In connection with the preparation of the Registration Statement and
the Prospectus, we have participated in conferences with officers and
representatives of the Company, counsel for the Underwriters and the independent
accountants of the Company, at which conferences we made inquiries of such
persons and others and discussed the contents of the Registration Statement and
the Prospectus. There can be no assurance that all material facts were disclosed
to us, or that our familiarity with the Company is such that we have necessarily
recognized the materiality of such facts as were disclosed to us, and we have to
a large extent relied upon statements of representatives of the Company as to
the materiality of the facts disclosed to us. Except as stated above, we have
not independently verified the statements made in the Registration Statement and
Prospectus, and we cannot and do not assume responsibility for the accuracy or
completeness thereof. On the basis of such participation, inquiries and
discussions, no facts have come to our attention which have caused us to believe
that the Registration


                                       32
<PAGE>

Statement, as of the Effective Date (but after giving effect to changes
incorporated pursuant to Rule 430A under the 1933 Act), contained any untrue
statement of a material fact or omitted to state any material fact required to
be stated therein or necessary in order to make the statements therein not
misleading (except that we express no such view with respect to the financial
statements, including the notes and schedules thereto, or any other financial or
accounting information, or information relating to the Underwriters or the
method of distribution of the Securities by the Underwriters included therein or
the section of the Prospectus entitled "Intellectual Property" as to which other
counsel has provided to you a separate legal opinion), that the Prospectus, as
of the date it was filed with the Commission pursuant to Rule 424(b) under the
1933 Act, contained any untrue statement of a material fact or omitted to state
any material fact necessary in order to make the statements therein, in light of
the circumstances under which they were made, not misleading (except that we
express no such view with respect to the financial statements, including the
notes and schedules thereto, or any other financial or accounting information,
or information relating to the Underwriters or the method of distribution of the
Securities by the Underwriters included therein or the section of the Prospectus
entitled "Intellectual Property"), or that the Registration Statement or the
Prospectus, as of the date hereof, contained any untrue statement of a material
fact or omitted to state any material fact necessary in order to make the
statements therein, in light of the circumstances under which they were made in
the case of the Prospectus, not misleading (except that we express no such view
with respect to the financial statements, including the notes and schedules
thereto, or any other financial or accounting information, or information
relating to the Underwriters or the method of distribution of the Securities by
the Underwriters included therein).


                                       33
<PAGE>

                                                                       EXHIBIT B


                FORM OF OPINION OF INTELLECTUAL PROPERTY COUNSEL
                  TO BE DELIVERED PURSUANT TO SECTION 5(b)(ii)


         (i) To the best of our knowledge, neither the Registration Statement
nor the Prospectus (A) contains any untrue statement of a material fact with
respect to trademarks, trade names, patents, patent applications, mask works,
copyrights, licenses, trade secrets or other intellectual property rights owned
or used by the Company, or the manner of its use thereof, or any allegation on
the part of any person or entity that the Company is infringing any trademarks,
trade names, patents, patent applications, mask works, copyrights, licenses,
trade secrets or other intellectual property rights of any such person or
entity, or (B) omits to state a material fact relating to (i) trademarks, trade
names, patents, patent applications, mask works, copyrights, licenses, trade
secrets or other intellectual property rights owned or used by the Company, or
the manner of its use thereof, or (ii) any allegations of which we have
knowledge, that is required to be stated in the Registration Statement or the
Prospectus or is necessary to make the statements therein not misleading.

         (ii) We have no knowledge of any facts which would preclude the Company
from having clear title to its patents or patent applications referenced under
"Risk Factors - Our business could be adversely affected if we are unable to
protect our patent and proprietary technology" and "Business - Intellectual
Property" (collectively, the "Technology Portion") of the Prospectus. To the
best of our knowledge, the Company owns or possesses sufficient licenses or
other rights to use all trademarks, trade names, patents, copyrights, licenses,
trade secrets, know-how and other intellectual property necessary to conduct the
business now conducted or proposed to be conducted by the Company as described
in the Prospectus and, to the best of our knowledge, the Company is in full
compliance with the terms of any such licenses and no claims, assertions or
allegations with respect to such licenses have been made to the contrary.

         (iii) To the best of our knowledge, the Company is not infringing or
otherwise violating and has not infringed or otherwise violated any trademarks,
trade names, patents, patent applications, mask works, copyrights, licenses,
trade secrets or other intellectual property rights of others, and, except as
described in the Technology Portion of the Prospectus, has not received any
notice of infringement or conflict with asserted rights of others with respect
to any patents, patent applications, trademarks, trade names, mask works,
copyrights, licenses, trade secrets, or other intellectual property rights which
could result in any material adverse effect upon the Company. To the best of our
knowledge, there are no infringements by others of any of the Company's
trademarks, trade names, patents, patent applications, mask works, copyrights,
licenses, trade secrets or other intellectual property rights.

         (iv) To the best of our knowledge, there are no legal or governmental
proceedings pending relating to trademarks, trade names, patents, patent
applications, mask works, copyrights, licenses, trade secrets or other
intellectual property rights which could result in any


                                       34
<PAGE>

material adverse effect upon the Company other than (i) as described in the
Technology Portion of the Prospectus, and (ii) the prosecution by the Company of
its patent applications before the United States Patent and Trademark Office and
appropriate foreign government agencies, and to the best of our knowledge no
such proceedings are threatened or contemplated by governmental authorities or
others.

         (v) The statements in the Technology Portion of the Prospectus, insofar
as such statements constitute a summary of documents referred to therein or
matters of law, are accurate summaries and fairly and correctly present, in all
material respects, the information called for with respect to such documents and
matters.

         (vi) The Company duly and properly holds the patents and
trademarks/service marks, and has duly and properly filed the United States
patent and/or trademark/service mark applications and patent cooperation treaty
applications listed or otherwise referenced in the Technology Portion of the
Prospectus.

         (vii) We do not know of any contract or other document relating to the
Company's intellectual property of a character required to be filed as an
exhibit to the Registration Statement or required to be described in the
Registration Statement or the Prospectus that has not been filed or described as
required.


                                       35
<PAGE>

                                                                       EXHIBIT C

               FORM OF LOCK-UP AGREEMENT PURSUANT TO SECTION 5(k)



                                    [o], 2000

CIBC World Markets Corp.
Banc of America Securities LLC
FAC/Equities, a division of First Albany Corporation as Representatives of the
   several Underwriters to be named in the within-mentioned Underwriting
   Agreement

CIBC World Markets Corp.
One World Financial Center
New York, New York  10281

         Re:      PROPOSED PUBLIC OFFERING BY SATCON TECHNOLOGY CORPORATION

Dear Sirs:

         The undersigned, a stockholder, officer and/or director of SatCon
Technology Corporation, a Delaware corporation (the "Company"), understands that
CIBC World Markets Corp. ("CIBC"), Banc of America Securities LLC and
FAC/Equities, a division of First Albany Corporation, propose to enter into a
Underwriting Agreement (the "Underwriting Agreement") with the Company providing
for the public offering of shares (the "Securities") of the Company's common
stock, par value $.01 per share (the "Common Stock"). In recognition of the
benefit that such an offering will confer upon the undersigned as a stockholder,
officer and/or director of the Company, and for other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
undersigned agrees with each underwriter to be named in the Underwriting
Agreement that, during a period of 90 days from the date of the Underwriting
Agreement, the undersigned will not, without the prior written consent of CIBC,
directly or indirectly, (i) offer, pledge, sell, contract to sell, sell any
option or contract to purchase, purchase any option or contract to sell, grant
any option, right or warrant for the sale of, or otherwise dispose of or
transfer any shares of the Company's Common Stock or any securities convertible
into or exchangeable or exercisable for Common Stock, whether now owned or
hereafter acquired by the undersigned or with respect to which the undersigned
has or hereafter acquires the power of disposition, or file any registration
statement under the Securities Act of 1933, as amended, with respect to any of
the foregoing or (ii) enter into any swap or any other agreement or any
transaction that transfers, in whole or in part, directly or indirectly, the
economic consequence of ownership of the Common Stock, whether any such swap or
transaction is to be settled by delivery of Common Stock or other securities, in
cash or otherwise.

         Notwithstanding the foregoing, the undersigned may transfer shares (i)
as a BONA FIDE gift or gifts, provided that the donee or donees thereof agree to
be bound by the restrictions set forth


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<PAGE>

herein, (ii) to any trust for the direct or indirect benefit of the undersigned
or the immediate family of the undersigned, provided that the trustee of the
trust agrees to be bound by the restrictions set forth herein, and provided
further that any such transfer shall not involve a disposition for value, or
(iii) with the prior written consent of CIBC on behalf of the underwriters;
PROVIDED, HOWEVER, that in any such case it shall be a condition to the transfer
that the transferee execute an agreement stating that the transferee is
receiving and holding such shares subject to the provisions of this Agreement,
and there shall be no further transfer of such shares except in accordance with
this Agreement. For purposes of this Agreement, "immediate family" shall mean
any relationship by blood, marriage or adoption, not more remote than first
cousin. In addition, notwithstanding the foregoing, if the undersigned is a
corporation, the corporation may transfer the capital stock of the Company to
any wholly-owned subsidiary of such corporation; PROVIDED, HOWEVER, that in any
such case, it shall be a condition to the transfer that the transferee execute
an agreement stating that the transferee is receiving and holding such capital
stock subject to the provisions of this Agreement and there shall be no further
transfer of such capital stock except in accordance with this Agreement, and
provided further that any such transfer shall not involve a disposition for
value.



                                   Very truly yours,



                                   Signature: __________________________________

                                   Print Name: _________________________________


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