Exhibit 10.33




                            SECURITIES PURCHASE AGREEMENT

                                      between

                            SATCON TECHNOLOGY CORPORATION

                                        and

                          MECHANICAL TECHNOLOGY INCORPORATED


                             Dated as of October 21, 1999











                              SECURITIES PURCHASE AGREEMENT

THIS SECURITIES PURCHASE AGREEMENT (this "Agreement") is dated as of October
21, 1999, between SatCon Technology Corporation, a Delaware corporation (the
"Company"), and Mechanical Technology Incorporated, a New York corporation (the
"Purchaser").

WHEREAS, the Company and the Purchaser are executing and delivering this
Agreement in reliance upon the exemption from securities registration afforded
by Rule 506 under Regulation D as promulgated by the United States Securities
and Exchange Commission (the "Commission") under Section 4(2) of the Securities
Act of 1933, as amended (the "Securities Act");

WHEREAS, subject to the terms and conditions set forth in this Agreement, the
Company desires to issue and sell 370,800 shares ("Primary Closing Shares") of
the Company's Common Stock par value $0.01 per share ("Common Stock") and a
stock purchase warrant (the "A Warrant") to purchase up to 36,000 shares of the
Company's Common Stock in the form of Exhibit A annexed hereto; and

WHEREAS, subject to the terms and conditions set forth in this Agreement, the
Purchaser desires to purchase the Primary Closing Shares and the A Warrant in
exchange for $2,570,000 in cash and a stock purchase warrant (the "MA Warrant")
to purchase up to 36,000 shares of the Purchaser's $1.00 par value Common Stock
in the form of Exhibit B annexed hereto; and

WHEREAS, subject to the terms and conditions set forth in this Agreement, the
Company desires to issue and sell 659,200 shares ("Secondary Closing Shares",
together with the Primary Closing Shares, collectively the "Shares") of Common
Stock and a stock purchase warrant (the "B Warrant", together with the A
Warrant, collectively the "Warrants") to purchase up to 64,000 shares of the
Company's Common Stock, in the form of Exhibit A annexed hereto, if the Company

achieves certain Milestones (as defined below) or the Purchaser elects to waive
such Milestones, prior to January 31, 2000; and

WHEREAS, subject to the terms and conditions set forth in this Agreement, the
Purchaser desires to purchase Secondary Closing Shares and the B Warrant in
exchange for $4,500,000 in cash and a stock purchase warrant (the "MB Warrant")
to purchase up to 64,000 shares of the Purchaser's $1.00 par value Common Stock
in the form of Exhibit B annexed hereto; and

WHEREAS, contemporaneously with the execution and delivery of this Agreement,
the parties hereto are executing and delivering a Registration Rights Agreement
substantially in the form of Exhibit C attached hereto (the "STC Registration
Rights Agreement") pursuant to which the Company has agreed to provide certain
registration rights under the Securities Act and the rules and regulations
promulgated thereunder, and applicable state securities laws; and

WHEREAS, contemporaneously with the execution and delivery of this Agreement,
the parties hereto are executing and delivering a Registration Rights Agreement
substantially in the form of Exhibit D attached hereto (the "MTI Registration
Rights Agreement") pursuant to which the Company has agreed to provide certain
registration rights under the Securities Act and the rules and regulations
promulgated thereunder and applicable state securities laws.

NOW THEREFORE, in consideration of the promises and mutual covenants and
agreements hereinafter, the Company and the Purchaser hereby agree as follows:

                                ARTICLE I

               PURCHASE AND SALE OF THE SECURITIES AND WARRANTS

1.1 Purchase and Sale. Subject to the terms and conditions set forth herein,
the Company shall issue and sell to the Purchaser, and the Purchaser shall
purchase from the Company, on the Primary Closing Date, the Primary Closing
Shares and the A Warrant. The aggregate purchase price of the Primary Closing
Shares and the A Warrant shall be $2,570,000 and the MA Warrant. Subject to the
terms and conditions set forth herein, the Company shall issue and sell to the
Purchaser, and the Purchaser shall purchase from the Company, on the Secondary
Closing Date, the Secondary Closing Shares and the B Warrant. The aggregate
purchase price of the Secondary Closing Shares and the B Warrant shall be
$4,500,000 and the MB Warrant.

1.2 Closings. Primary Closing. The closing of the purchase and sale of the
Primary Closing Shares and the A Warrant (the "Primary Closing") shall take
place at the offices of Mechanical Technology Incorporated in Latham, New York,
or by transmission by facsimile and overnight courier, immediately following
the execution hereof or such later date or different location as the parties
shall agree, but not prior to the date that the conditions set forth in Section
4.1 have been satisfied or waived by the appropriate party (the "Primary
Closing Date"). At the Primary Closing:

(1)	The Purchaser shall deliver, as directed by the Company, two million,
five hundred seventy thousand dollars ($2,570,000) in United States dollars in
immediately available funds to an account or accounts designated in writing by
the Company;

(2)	The Purchaser shall deliver to the Company the MA Warrant, in the form
of Exhibit B hereto;



(3)	The Company shall deliver to the Purchaser a certificate evidencing the
Primary Closing Shares;

(4)	The Company shall deliver to the Purchaser the A Warrant, in the form
of Exhibit A hereto; and

(5) The parties shall execute and deliver each of the documents referred to in
Section 4.1 hereof. Secondary Closing. The closing of the purchase and sale of
the Secondary Closing Shares and the B Warrant (the "Secondary Closing") shall
take place at the offices of Mechanical Technology Incorporated in Latham, New
York or by transmission by facsimile and overnight courier on a date on or
prior to January 31, 2000 selected by the Purchaser (the "Secondary Closing
Date"). At the Secondary Closing,

(1)	The Purchaser shall deliver, as directed by the Company, four million
five hundred thousand dollars ($4,500,000) in United States dollars in
immediately available funds to an account or accounts designated in writing by
the Company;

(2)	The Purchaser shall deliver to the Company the MB Warrant, in the form
of Exhibit B hereto;

(3)	The Company shall deliver to the Purchaser a certificate evidencing the
Secondary Closing Shares;

(4)	The Company shall deliver to the Purchaser the B Warrant, in the form
of Exhibit A hereto; and

(5)	The parties shall execute and deliver each of the documents referred to
in Section 4.2 hereof.


                                    ARTICLE II

                          REPRESENTATIONS AND WARRANTIES

2.1	Representations, Warranties and Agreements of the Company. The Company
hereby makes the following representations and warranties to the Purchaser:

a.	Organization and Qualification. The Company is a corporation duly
incorporated, validly existing and in good standing under the laws of the State
of Delaware, with the requisite corporate power and authority to own and use
its properties and assets and to carry on its business as currently conducted.
Except for Beacon Power Corporation ("Beacon") or as set forth on Schedule
2.1(a), the Company has no subsidiaries (collectively, the "Subsidiaries"); it
being agreed that for purposes of this Agreement Beacon is not a subsidiary of
the Company. Each of the Subsidiaries (which, except as provided in the prior
sentence, for purposes of this Agreement means any entity in which the Company,
directly or indirectly, owns the majority of such entity's capital stock or
holds an equivalent equity or similar interest) is a corporation duly
incorporated, validly existing and in good standing under the laws of the
jurisdiction of its incorporation or organization (as applicable), with the
full corporate power and authority to own and use its properties and assets and
to carry on its business as currently conducted. Each of the Company and the
Subsidiaries is duly qualified as a foreign corporation to do business and is
in good standing as a foreign corporation in each jurisdiction in which the
nature of the business conducted or property owned by it makes such
qualification necessary, except where the failure to be so qualified or in good
standing, as the case may be, would not, individually or in the aggregate, (x)

adversely affect the legality, validity or enforceability of any of this
Agreement or the Transaction Documents (as defined in Section 2.1(b)) or any of
the material transactions contemplated hereby or thereby, (y) have or result in
a material adverse effect on the results of operations, assets, or financial
condition of the Company and its Subsidiaries, taken as a whole or (z) impair
the Company's ability to perform in all material respects on a timely basis its
material obligations under any Transaction Document (any of (x), (y) or (z),
being a "Material Adverse Effect"). The Company has on file with the Securities
Exchange Commission true and correct copies of the Company's Certificate of
Incorporation, as amended and as in effect on the date hereof (the "Certificate
of Incorporation"), and the Company's Bylaws, as in effect on the date hereof
(the "Bylaws").

b.	Authorization; Enforcement. The Company has the requisite corporate
power and authority to enter into and to consummate the transactions
contemplated by this Agreement, the A Warrant, the B Warrant and the
Registration Rights Agreement (collectively, the "Transaction Documents"), and
otherwise to carry out its obligations hereunder and thereunder. The execution
and delivery of each of this Agreement and the Transaction Documents by the
Company and the consummation by it of the transactions contemplated hereby and
thereby have been duly authorized by all necessary corporate action. This
Agreement has been duly executed by the Company and the A Warrant and
Registration Rights Agreement at the Primary Closing will be duly executed by
the Company. Subject to the terms and conditions contained herein, the B
Warrant at the Secondary Closing will be duly executed by the Company. When
delivered in accordance with the terms hereof, the Transaction Documents will
constitute the valid and binding obligation of the Company enforceable against
the Company in accordance with its terms, except as such enforceability may be
limited by applicable bankruptcy, insolvency, reorganization, moratorium,
liquidation or similar laws relating to, or affecting generally the enforcement
of, creditors' rights and remedies or by other equitable principles of general
application and except that rights to indemnification and contribution may be
limited by Federal or state securities laws or public policy relating thereto.
Neither the Company nor any Subsidiary is in any material violation of any of
the provisions of its respective certificate of incorporation, bylaws or other
charter documents such that any right of a holder of the Common Stock would be
affected.

c.	Capitalization. As of the date hereof, the authorized capital stock of
the Company is as set forth in Schedule 2.1(c). All of such outstanding shares
of capital stock have been, or upon issuance will be, validly authorized and
issued, fully paid and nonassessable (except as disclosed in the SEC Documents
(as defined in Section 2.1(p)) and were issued in accordance with the
registration or qualification provisions of the Securities Act, or pursuant to
valid exemptions therefrom. Except as disclosed in Schedule 2.1(c), (i) no
shares of the Company's capital stock are subject to preemptive rights or any
other similar rights or any liens or encumbrances suffered or permitted by the
Company, nor is any holder of the Common Stock entitled to preemptive or
similar rights arising out of any agreement or understanding with the Company
by virtue of any Transaction Document, (ii) there are no outstanding options,
warrants, scrip rights to subscribe to, calls or commitments of any character
whatsoever relating to, or securities or rights convertible into or
exchangeable for, or giving any Person (as defined below) any right to
subscribe for or acquire, any shares of capital stock of the Company or any of
its Subsidiaries, or contracts, commitments, understandings or arrangements by
which the Company or any of its Subsidiaries is or may become bound to issue
additional shares of capital stock of the Company or any of its Subsidiaries or
options, warrants, scrip rights to subscribe to, calls or commitments of any
character whatsoever relating to, or securities or rights convertible into, any

shares of capital stock of the Company or any of its Subsidiaries, (iii) there
are no outstanding debt securities of the Company or any of its Subsidiaries,
(iv) there are no agreements or arrangements under which the Company or any of
its Subsidiaries is obligated to register the sale of any of their securities
under the Securities Act (except the Registration Rights Agreement), (v) there
are no outstanding securities of the Company or any of its Subsidiaries which
contain any redemption or similar provisions, and there are no contracts,
commitments, understandings or arrangements by which the Company or any of its
Subsidiaries is or may become bound to redeem a security of the Company or any
of its Subsidiaries, (vi) there are no securities or instruments containing
anti-dilution or similar provisions that will be triggered by the issuance of
the shares of Common Stock, the A Warrant or the B Warrant as described in this
Agreement or upon the exercise of the A Warrant or the B Warrant, (vii) the
Company does not have any stock appreciation rights or "phantom stock" plans or
agreements or any similar plan or agreement and (viii) except for the put
rights granted to the holders of the Class D Preferred Stock of Beacon or
pursuant to this Agreement or the Warrants issued to investment funds managed
by Brown Simpson Capital Management, LLC, no Person (as defined below) or group
of related Persons beneficially owns (as determined pursuant to Rule 13d-3
promulgated under the Securities Exchange Act of 1934, as amended (the
"Exchange Act")) or has the right to acquire by agreement with or by obligation
binding upon the Company beneficial ownership of in excess of 5% of the Common
Stock. "Person" means an individual or corporation, partnership, trust,
incorporated or unincorporated association, joint venture, limited liability
company, joint stock company, government (or an agency or subdivision thereof)
or other entity of any kind.

d.	Authorization and Validity; Issuance of Shares. The Common Stock issued
pursuant to this Agreement and the Common Stock issuable upon exercise of the A
Warrant and, when issued, the B Warrant will at all times hereafter continue to
be duly authorized and reserved for issuance and the shares of Common Stock
issued upon the exercise of the A Warrant and, when issued, the B Warrant (the
"Warrant Shares") will be validly issued, fully paid and non-assessable, free
and clear of all liens, encumbrances and Company rights of first refusal, other
than liens and encumbrances created by the Purchaser (collectively, "Liens")
and will not be subject to any preemptive or similar rights. Assuming the
accuracy of the Purchaser's representations in Section 2.2, the issuance by the
Company of the Common Stock, the A Warrant, the B Warrant and the Warrant
Shares is exempt from registration under the Securities Act.

e.	No Conflicts. The execution, delivery and performance of this Agreement
and each of the Transaction Documents by the Company and the consummation by
the Company of the transactions contemplated hereby and thereby (including the
issuance of the Warrant Shares) do not and will not (i) conflict with or
violate any provision of the Certificate of Incorporation, Bylaws or other
organizational documents of the Company or any of the Subsidiaries, (ii)
subject to obtaining the consents referred to in Section 2.1(f), conflict with,
or constitute a breach or a default (or an event which with notice or lapse of
time or both would become a default) under, or give to others any rights of
termination, amendment, acceleration or cancellation of, any agreement,
indenture, patent, patent license or instrument (evidencing a Company or
Subsidiary debt or otherwise) to which the Company or any Subsidiary is a party
or by which any property or asset of the Company or any Subsidiary is bound or
affected, or (iii) result in a violation of any law, rule, regulation, order,
judgment, injunction, decree or other restriction of any court or governmental
authority to which the Company or any Subsidiary is subject (including Federal
and state securities laws and regulations and the rules and regulations of the
principal market or exchange on which the Common Stock is traded or listed)
applicable to the Company or any of its Subsidiaries, or by which any material

property or asset of the Company or any Subsidiary is bound or affected except,
in each such case, for any violation, conflict, default or breach which is not
reasonably expected to have a Material Adverse Effect.

f.	Consents and Approvals. Except as specifically set forth on Schedule
2.1(f), neither the Company nor any Subsidiary is required to obtain any
consent, waiver, authorization or order of, give any notice to, or make any
filing or registration with, any court or other federal or state governmental
authority, regulatory or self regulatory agency, or other Person in connection
with the execution, delivery and performance by the Company of this Agreement
or the Transaction Documents, other than (i) the filing of a registration
statement with the Commission, which shall be filed in accordance with and in
the time periods set forth in the Registration Rights Agreement, (ii) the
application(s) or any letter(s) acceptable to the National Market System of
Nasdaq Stock Market ("Nasdaq") for the listing of the Shares and the Warrant
Shares with Nasdaq (and with any other national securities exchange or market
on which the Common Stock is then listed), (iii) any filings, notices or
registrations under applicable state securities laws, and (iv) the filing of a
form D with the Commission (together with the consents, waivers,
authorizations, orders, notices and filings referred to on Schedule 2.1(f), the
"Required Approvals").

g.	Litigation; Proceedings. Except as specifically set forth on Schedule
2.1(g), there is no action, suit, notice of violation, proceeding or
investigation pending or, to the knowledge of the Company or any of its
Subsidiaries, threatened against or affecting the Company or any of its
Subsidiaries or any of their respective properties or assets before or by any
court, governmental or administrative agency or regulatory authority (federal,
state, county, local or foreign) which (i) adversely affects or challenges the
legality, validity or enforceability of any of this Agreement or the
Transaction Documents or (ii) could reasonably be expected to, individually or
in the aggregate, have a Material Adverse Effect.

h.	Material Contracts. Except for this Agreement, the other agreements to
be entered into pursuant to the terms of this Agreement, contracts attached as
exhibits to the Company's SEC Documents and the contracts of the Company and
its Subsidiaries set forth on Exhibit 2.1(h) attached hereto (collectively, the
"Contracts"), neither the Company nor its Subsidiaries are a party to or
otherwise bound by any written or oral:

(1)	written contract for the employment of any officer, employee or other
person on a full-time or consulting basis, which is not terminable on thirty
(30) days' notice without cost or liability to the Company or any Subsidiary,
except normal severance arrangements and accrued vacation pay;

(2)	bonus, pension, profit-sharing, retirement, hospitalization, insurance,
stock purchase, stock option or other plan, contract or understanding pursuant
to which benefits are provided to any employee of the Company or any Subsidiary
(other than group insurance plans applicable to employees generally);

(3)	agreement or indenture relating to the borrowing of money or to the
mortgaging or pledging of, or otherwise placing a lien or security interest on,
any asset of the Company or Subsidiary or any agreement or instrument
evidencing any guaranty by the Company or any Subsidiary of payment or
performance by any other Person;

(4)	voting trust or agreement, stockholders' agreement, pledge agreement,
buy-sell agreement or first refusal or preemptive rights agreement relating to
any securities of the Company;

(5)	agreement or obligation (contingent or otherwise) to issue, sell or
otherwise distribute or to repurchase or otherwise acquire or retire any shares
of its capital stock or any of its other equity securities;

(6)	agreement under which the Company or any Subsidiary has granted any
person any registration rights, other than this Agreement;

(7)	agreement providing for disposition of the business, assets or
shares of the Company or its Subsidiaries, agreement of merger or consolidation
to which the Company or any Subsidiary is a party or letter of intent with
respect to the foregoing;

(8)	agreement or letter of intent (other than the acquisition of Ling
Electronics, Inc.) with respect to the acquisition of the business, assets or
shares of any other Person.

i.	ERISA. Set forth in Exhibit 2.1(i) is a list and brief description of
each "employee pension benefit plan," as such term is defined in Section 3(2)
of ERISA, now or formerly maintained by the Company or any of their respective
Subsidiaries, to which the Company or any Subsidiary is now or will be
obligated to contribute. Except as described in Exhibit 2.1(i), no event has
occurred, or to the knowledge of the Company or its Subsidiaries, is threatened
or about to occur, which would constitute a reportable event within the meaning
of Section 4043(b) of ERISA, and no notice of termination has been filed by the
plan administrator pursuant to Section 4041 of ERISA or issued by the Pension
Benefit Guaranty Corporation (the "PBGC") pursuant to Section 4042 of ERISA
with respect to any pension benefit plan described in Exhibit 2.1(i) subject to
ERISA. To the best knowledge of the Company, no prohibited transaction (as
defined in Section 4975 of the Code) has occurred with respect to any employee
benefit plan maintained by the Company or any of its Subsidiaries. Neither the
Company nor any of their respective Subsidiaries nor any of their respective
ERISA Affiliates is or has been a participant in any multiemployer plan as
defined in ERISA. "ERISA Affiliate" means with respect to any Person, any
entity that would be considered to be under common control with such person for
purposes of Title IV of ERISA.

j.	Environmental Matters.

(1)	Hazardous Materials have not at any time been generated, used, treated
or stored on any property, plants or other facilities now owned, leased, or
operated by the Company or any Subsidiary (or at any property, plant or other
facilities ever owned, leased or operated by any predecessor entity at such
locations), in violation of any applicable law, ordinance, rule, regulation,
order, judgment, decree or permit or which would require remedial action under
any applicable law, ordinance, rule, regulation, order, judgment, decree or
permit, and none of the Company, its Subsidiaries or its predecessors have
received any notice of any such violation with respect to Hazardous Materials
except for such violations that the Company reasonably does not expect will
have a Material Adverse Effect;

(2)	There has been no spill, discharge, leak, emission, injection, escape,
dumping or release of any kind onto any property now owned or leased by the
Company, its Subsidiaries or any predecessor (or onto any other property ever
owned or leased by it, or by any predecessor entity at any such location), or
into the environment surrounding any such property, of Hazardous Materials,
other than those releases permissible under such regulations, laws or statutes
or allowable under applicable permits and except for such violations that the
Company reasonably does not expect will have a material adverse effect on the
Company;

(3)	The Company, its Subsidiaries or its predecessor, their operations and
any property owned by the Company, its Subsidiaries or its predecessor are in
material compliance with all material Environmental Laws and the material
requirements of any permits issued under such laws;

(4)     There are no past, pending or, to the best of the Company's knowledge,
threatened Environmental Claims against the Company, its Subsidiaries or its
predecessor or any property now or previously owned or leased by the Company,
its Subsidiaries or its predecessor;

(5) To the best of the Company's knowledge, there is no condition or occurrence
on any property now or previously owned or leased by the Company, its
Subsidiaries or its predecessor or any property adjoining or in the vicinity of
any such property that could reasonably be anticipated (i) to form the basis of
an Environmental Claim against the Company, its Subsidiaries or its predecessor
or (ii) to cause any property of the Company, its Subsidiaries or its
predecessor to be subject to any restrictions on the ownership, occupancy, use
or transferability of such property under any Environmental Law.

(6)	For purposes of this Agreement, "Hazardous Materials" shall refer to
(a) any petroleum or petroleum products, radioactive materials, asbestos in any
form that is or could become friable, urea formaldehyde foam insulation,
transformers or other equipment that contain dielectric fluid containing levels
of polychlorinated biphenyls, and radon gas; (b) any chemicals, materials or
substances defined as or included in the definition of "hazardous substances,"
"hazardous wastes," "hazardous materials," "extremely hazardous wastes,"
"restricted hazardous wastes," "toxic substances," "toxic pollutants,"
"contaminants" or "pollutants," or words of similar import, under any
applicable Environmental Law; and (c) any other chemical, material or substance
exposure to which is prohibited, limited or regulated by any governmental
authority; "Environmental Law" means any federal, state or local statute, law,
rule, regulation, ordinance, code, policy or rule of common law now or
hereafter in effect and in each case as amended, and any judicial or
administrative interpretation thereof, including any judicial or administrative
order, consent decree or judgment, relating to the environment, health, safety
or Hazardous Materials, including without limitation the Comprehensive
Environmental Response, Compensation and Liability Act of 1980, as amended
("CERCLA") 42 U.S.C. 9601 et seq.; the Hazardous Materials Transportation
Act, as amended, 49 U.S.C. 1801 et seq.; the Resource Conservation and
Recovery Act, as amended, 42 U.S.C. 6901 et seq.; the Federal Water Pollution
Control Act, as amended, 33 U.S.C. 1251 et seq.; the Toxic Substances Control
Act, 15 U.S.C. 2601 et seq.; the Clean Air Act, 42 U.S.C. 7401 et seq.; the
Safe Drinking Water Act, 42 U.S.C. 3808 et seq.; and their counterparts under
any state or local laws; "Environmental Claims" means any and all
administrative, regulatory or judicial actions, suits, demands, demand letters,
claims, liens, notices of non-compliance or violation, investigations or
proceedings relating in any way to any Environmental Law or any permit issued
under any such Law (hereafter "Claims"), including without limitation (a) any
and all Claims by governmental or regulatory authorities for enforcement,
cleanup, removal, response, remedial or other actions or damages, fines or
penalties pursuant to any applicable Environmental Law, and (b) any and all
Claims by any third party seeking damages, contribution, indemnification, cost
recovery, compensation or injunctive relief resulting from Hazardous Materials
or arising from alleged injury or threat of injury to health, safety or the
environment.

k.      Year 2000 Matters.      The Company's statements regarding "Year 2000
Risk" set forth in the SEC Documents are true and correct in all material
respects.

"Year 2000 Risk" means the risk that computer applications used by the Company
and/or its suppliers, vendors and customers may be unable to recognize and
perform without error date- sensitive functions involving certain dates prior
to and any date after December 31, 1999, including, without limitation,
September 9, 1999.

l.	No Default or Violation. Except as specifically set forth on Schedule
2.1(l), neither the Company nor any Subsidiary (i) is in default under or in
violation of any indenture, loan or other credit agreement or any other
agreement or instrument to which it is a party or by which it or any of its
properties or assets is bound and which is required to be included as an
exhibit to any SEC Document (as defined in Section 2.1(o) hereof) or will be
required to be included as an exhibit to the Company's next filing under either
the Securities Act or Exchange Act, (ii) is in violation of any order of any
court, arbitrator or governmental body applicable to it, (iii) is in violation
of any statute, rule or regulation of any governmental authority to which it is
subject, (iv) is in default under or in violation of its Certificate of
Incorporation, Bylaws or other organizational documents, respectively, or (v)
is in default under or in violation of any of the listing requirements of
Nasdaq as in effect on the date hereof and is not aware of any facts which
would reasonably lead to delisting or suspension of the Common Stock by Nasdaq
in the foreseeable future except, in each such case, for any violation or
default which is not reasonably expected to have a Materially Adverse Effect.
The business of the Company and its Subsidiaries is not being conducted, and
has not been conducted, in violation of any law, ordinance, rule or regulation
of any governmental entity, except where such violations have not resulted or
would not reasonably result, individually or in the aggregate, in a Material
Adverse Effect. Neither the Company nor any of its Subsidiaries is in breach of
any agreement where such breach, individually or in the aggregate, would have a
Material Adverse Effect

m.	Disclosure; Absence of Certain Changes. None of this Agreement, the
Schedules to this Agreement, the Transaction Documents, the SEC Documents (as
amended to date) contained as of their respective dates, any untrue statement
of a material fact or omitted to state any material fact necessary in order to
make the statements made herein and therein, in light of the circumstances
under which they were made, not misleading. Except as disclosed on Schedule
2.1(m) or in SEC Documents filed on EDGAR through the date hereof, since the
filing of the Company's quarterly report on Form 10-Q on August 16, 1999, there
has been no material adverse change and no material adverse development in the
business, properties, operations, financial condition, liabilities or results
of operations of the Company or the Subsidiaries. The Company has not taken any
steps, and does not currently expect to take any steps, to seek protection
pursuant to any bankruptcy law nor does the Company or any of its Subsidiaries
have any knowledge or reason to believe that its creditors intend to initiate
involuntary bankruptcy proceedings.

n.	Private Offering. The Company and all Persons acting on its behalf have
not made within the six months preceding the Closing Date, directly or
indirectly, and will not make, offers or sales of any securities or solicited
any offers to buy any security at any time within six months after the Closing
Date under circumstances that would require registration of the Securities, the
Warrants or the Warrant Shares or the issuance of such securities under the
Securities Act.

o.	SEC Documents; Financial Statements. The Common Stock of the Company is
registered pursuant to Section 12(g) of the Exchange Act. The Company has filed
during its current fiscal year all reports, schedules, forms, statements and
other documents required to be filed by it with the Commission pursuant to the

reporting requirements of the Exchange Act, including pursuant to Section 13,
14 or 15(d) thereof (the foregoing materials and financial statements and
schedules thereto being collectively referred to herein as the "SEC
Documents"), on a timely basis or has received a valid extension of such time
of filing and has filed any such SEC Documents prior to the expiration of any
such extension. The Company has delivered to the Purchaser or its
representatives true, complete and accurate copies of the SEC Documents that
were not filed pursuant to EDGAR. As of their respective dates and giving
effect to all amendments thereto filed with the Commission, the financial
statements of the Company included in the SEC Documents comply as to form in
all material respects with applicable accounting requirements and the published
rules and regulations of the Commission with respect thereto as in effect at
the time of filing. Such financial statements have been prepared in accordance
with United States generally accepted accounting principles applied on a
consistent basis during the periods involved, except as may be otherwise
specified in such financial statements or the notes thereto, and fairly present
in all material respects the financial position of the Company as of and for
the dates thereof and the results of operations and cash flows for the periods
then ended, subject, in the case of unaudited statements, to normal, year-end
audit adjustments. The Company acknowledges that the Purchaser will be trading
in the securities of the Company in reliance on the foregoing representation
and warranty.

p.	Investment Company. The Company is not, and is not controlled by or
under common control with an affiliate (an "Affiliate") of an "investment
company" within the meaning of the Investment Company Act of 1940, as amended.

q. Broker's Fees. No fees or commissions or similar payments with respect to
the transactions contemplated by this Agreement or the Transaction Documents
have been paid or will be payable by the Company to any broker, financial
advisor, finder, investment banker, or bank, other than as set forth in
Schedule 2.1(q). The Purchaser shall have no obligation with respect to any
fees or with respect to any claims made by or on behalf of other Persons for
fees of a type contemplated in this Section 2.1(q) that may be due in
connection with the transactions contemplated by this Agreement and the
Transaction Documents.

r. Form S-3 Eligibility. The Company is, and at the Closing Date will be,
eligible to register securities (including the Shares and the Warrant Shares)
for resale with the Commission under Form S-3 (or any successor form)
promulgated under the Securities Act.

s. Listing and Maintenance Requirements Compliance. The principal market on
which the Common Stock is currently traded is Nasdaq. Except as disclosed on
Schedule 2.1(s), the Company has not in the three years preceding the date
hereof received notice (written or oral) from Nasdaq (or any stock exchange,
market or trading facility on which the Common Stock is or has been listed (or
on which it has been quoted)) to the effect that the Company is not in
compliance with the listing or maintenance requirements of such market or
exchange. The Company is not aware of any facts which would reasonably lead to
delisting or suspension of the Common Stock by Nasdaq. After giving effect to
the transactions contemplated by this Agreement and the Transaction Documents,
the Company is and will be in compliance with all such maintenance requirements
except for any approval required under the NASD rules.

t. Intellectual Property Rights. To the best of the knowledge of the Company,
the Company owns or possesses, or can obtain by payment of royalties in amounts
which, in the aggregate, will not have a Material Adverse Effect, all of the
patents, trademarks, service marks, trade names, copyrights, proprietary

rights, trade secrets, and licenses or rights to the foregoing, necessary for
the conduct of the business of the Company as currently conducted. To the best
of the Company's knowledge, the business of the Company does not cause the
Company to infringe or violate any of the patents, trademarks, service marks,
trade names, copyrights, licenses or proprietary rights of any person or
entity.

u. Registration Rights; Rights of Participation. Except as described on
Schedule 2.1(u) hereto, (i) the Company has not granted or agreed to grant to
any Person any rights (including "piggy-back" registration rights) to have any
securities of the Company registered with the Commission or any other
governmental authority which has not been satisfied and (ii) no Person,
including, but not limited to, current or former stockholders of the Company,
underwriters, brokers or agents, has any right of first refusal, preemptive
right, right of participation, or any similar right to participate in the
transactions contemplated by this Agreement or any Transaction Document.

v. Tax Status; Firpta. Except as set forth on Schedule 2.1(v), the Company and
each of the Subsidiaries has made or filed all federal and state income and all
other tax returns, reports and declarations required by any jurisdiction to
which it is subject (unless and only to the extent that the Company and each of
its Subsidiaries has set aside on its books provisions reasonably adequate for
the payment of all unpaid and unreported taxes) and has paid all taxes and
other governmental assessments and charges that are material in amount, shown
or determined to be due on such returns, reports and declarations, except those
being contested in good faith (which are set forth on Schedule 2.1(v) hereof),
and has set aside on it books provisions reasonably adequate for the payment of
all taxes for periods subsequent to the periods to which such returns, reports
or declarations apply. There are no unpaid taxes in any material amount claimed
to be due by the taxing authority of any jurisdiction, and the officers of the
Company know of no basis for any such claim. The Company is not a "United
States real property holding corporation" within the meaning of Section
847(c)(2) of the Internal Revenue Code of 1986, as amended.

w. Transactions With Affiliates. Except as set forth on Schedule 2.1(c) or
Schedule 2.1(w), none of the officers, directors, or employees of the Company
is presently a party to any transaction with the Company or any of its
Subsidiaries (other than for services as employees, officers and directors),
including any contract, agreement or other arrangement providing for the
furnishing of services to or by, providing for rental of real or personal
property to or from, or otherwise requiring payments to or from any officer,
director or such employee or, to the knowledge of the Company, any corporation,
partnership, trust or entity in which any officer, director, or any such
employee has a substantial interest or is an officer, director, trustee or
partner.

x. Application to Takeover Protection. The Company and its Board of Directors
have taken all necessary action, if any, in order to render inapplicable any
control share acquisition, business combination or other similar anti-takeover
provision under the Certificate of Incorporation, Bylaws or the laws of the
state of incorporation which is or could become applicable to the Purchaser or
the Transaction Documents as a result of the transactions contemplated by this
Agreement or the Transaction Documents. None of the transactions contemplated
by this Agreement or the Transaction Documents, including the exercise of the A
Warrant or the B Warrant, will trigger any poison pill provisions of any of the
Company's stockholders' rights or similar agreements.




y. Solicitation Materials. The Company has not (i) distributed any offering
materials in connection with the offering and sale of the Shares or the A
Warrant or the B Warrant, other than the SEC Documents, the Schedules to this
Agreement, any amendments and supplements thereto, material or information
requested by the Purchaser or its representative in connection with the
transaction contemplated by this Agreement, and the materials listed on
Schedule 2.1(y), or (ii) solicited any offer to buy or sell the Shares, the A
Warrant or the B Warrant by means of any form of general solicitation or
advertising. Neither the Company, nor any of its Affiliates, nor any Person
acting on its or their behalf, has engaged or will engage in any form of
general solicitation or general advertising (within the meaning of Regulation D
under the Securities Act) in connection with the offer or sale of the Shares or
Warrants.

z. Acknowledgment of Dilution. The Company understands and acknowledges the
potentially dilutive effect to the Common Stock upon the issuance of the
Warrant Shares upon exercise of the Warrants. The Company further acknowledges
that its obligation to issue Warrant Shares upon exercise of the Warrants in
accordance with this Agreement, and the Warrants is absolute and unconditional
regardless of the dilutive effect that such issuance may have on the ownership
interests of other stockholders of the Company.

aa. Acknowledgment Regarding Purchaser's Purchase of Securities. The Company
acknowledges and agrees that the Purchaser is acting solely in the capacity of
arm's length Purchaser with respect to this Agreement and the transactions
contemplated hereby. The Company further acknowledges that the Purchaser is not
acting as a financial advisor or fiduciary of the Company (or in any similar
capacity) with respect to this Agreement and the transactions contemplated
hereby and any statement made by any Purchaser or any of their respective
representatives or agents in connection with this Agreement and the
transactions contemplated hereby is not advice or a recommendation and is
merely incidental to the Purchaser's purchase of the securities. The Company
further represents to each Purchaser that the Company's decision to enter into
this Agreement has been based solely on the independent evaluation of the
Company and its representatives.

bb. Other Agreements. The Company has not, directly or indirectly, made any
agreements with the Purchaser relating to the terms and conditions of the
transactions contemplated by the Transaction Documents except as set forth in
the Transaction Documents.

cc.	Investment Intent. The Company is acquiring the MA Warrant and the MB
Warrant and any shares of stock it receives upon exercise of the MA Warrant or
the MB Warrant (the "M Shares") for its own account and not with a present view
to or for distributing or reselling the M Shares, the MA Warrant, the MB
Warrant or any part thereof or interest therein in violation of the Securities
Act; provided, however, that by making the representations herein, the Company
does not agree to hold any of the M Shares, the MA Warrant or the MB Warrant
for any minimum or other specific term and reserves the right to dispose of the
M Shares, the MA Warrant or the MB Warrant at any time in accordance with or
pursuant to a registration statement or an exemption under the Securities Act.

dd.	Company Status. At the time the Company was offered the MA Warrant, the
MB Warrant, and at the Primary Closing Date and Secondary Closing Date, (i) it
was and will be an "accredited investor" as defined in Rule 501 under the
Securities Act and (ii) the Company, either alone or together with its
representatives, had and will have such knowledge, sophistication and



experience in business and financial matters so as to be capable of evaluating
the merits and risks of the prospective investment in the Shares and the
Warrants.

ee.	Reliance. The Company understands and acknowledges that (i) the M
Shares, the MA Warrant and the MB Warrant are being offered and sold to the
Company without registration under the Securities Act in a private placement
that is exempt from the registration provisions of the Securities Act under
Section 4(2) of the Securities Act or Regulation D promulgated thereunder and
(ii) the availability of such exemption depends in part on, and the Purchaser
will rely upon the accuracy and truthfulness of, the representations set forth
in this Section 2.1 and the Company hereby consents to such reliance.

ff.	Governmental Review. The Company understands that no United States
federal or state agency or any other government or governmental agency has
passed upon or made any recommendation or endorsement of the M Shares, the MA
Warrant or the MB Warrant.

Any information furnished in the schedules to Section 2.1 (a "Disclosure
Schedule") shall be deemed to modify all of the Company's representations and
warranties. The inclusion of any information in the Disclosure Schedule shall
not be deemed to be an admission or acknowledgment, in and of itself, that such
information is required by the terms hereof to be disclosed, is material to the
company, has or would have a Material Adverse Effect. For purposes of this
Agreement, the terms "to the Company's knowledge," "known by the Company" or
other words of similar meaning shall mean the actual knowledge of David
Eisenhaure or Michael Turmelle without any obligation of investigation, and
shall not refer to the knowledge of any other person or entity.

2.2	Representations and Warranties of the Purchaser. The Purchaser hereby
represents and warrants to the Company as follows:

a.	Organization; Authority. The Purchaser is a corporation duly formed,
validly existing and in good standing under the laws of the jurisdiction of its
incorporation or formation with the requisite power and authority, corporate or
otherwise, to enter into and to consummate the transactions contemplated hereby
and by the Transaction Documents and otherwise to carry out its obligations
hereunder and thereunder. The purchase by the Purchaser of the Shares, the A
Warrant and the B Warrant hereunder has been duly authorized by all necessary
action on the part of the Purchaser. Each of this Agreement and the
Registration Rights Agreement has been duly executed and delivered by the
Purchaser and constitutes the valid and legally binding obligation of the
Purchaser, enforceable against the Purchaser in accordance with its terms,
subject to bankruptcy, insolvency, fraudulent transfer, reorganization,
moratorium and similar laws of general applicability relating to or affecting
creditors' rights generally and to general principles of equity.

b.	Authorization and Validity; Issuance of Shares. The common stock
issuable upon exercise of the MA Warrant and, when issued, the MB Warrant, will
at all times hereafter continue to be duly authorized and reserved for issuance
and the shares of common stock issued upon the exercise of the MA Warrant, and
when issued, the MB Warrant, will be validly issued, fully paid and
non-assessable, free and clear of all liens, encumbrances, and Purchaser rights
of first refusal, other than liens and encumbrances created by the Company and
will not be subject to any preemptive or similar rights. Assuming the accuracy
of the Company's representations in Section 2.1, the issuance by the Purchaser
of the MA Warrant, the MB Warrant and any shares upon exercise of such warrants
is exempt from registration under the Securities Act.


c.	Purchaser SEC Documents; Financial Statements.	The Common Stock of the
Purchaser is registered pursuant to Section 12(g) of the Exchange Act. The
Purchaser has filed during its current fiscal year all reports, schedules,
forms, statements and other documents required t be filed by it with the
Commission pursuant to the reporting requirements of the Exchange Act,
including pursuant to Section 13, 14 or 15(d) thereof (the foregoing materials
and financial statements and schedules thereto being collectively referred to
herein as the "Purchaser SEC Documents"), on a timely basis or has received a
valid extension of such time of filing and has filed any such Purchaser SEC
Documents prior to the expiration of any such extension. The Purchaser has
delivered to the Company or its representatives true, complete and accurate
copies of the Purchaser SEC Documents that were not filed pursuant to EDGAR. As
of their respective financial statements of the Purchasers included in the
Purchaser SEC Documents comply as to form in all material respects with
applicable accounting requirements and the published rules and regulations of
the Commission with respect thereto as in effect at the time of filing. Such
financial statements have been prepared in accordance with United States
generally accepted accounting principles applied on a consistent basis during
the periods involved, except as may be otherwise specified in such financial
statements or the notes thereto, and fairly present in all material respects
the financial position of the Purchaser as of and for the dates thereof and the
results of operations and cash flows for the periods then ended, subject, in
the case of unaudited statements, to normal, year-end audit adjustments. The
Purchaser acknowledges that the Company will be trading in the securities of
the Purchaser in reliance on the foregoing representation and warranty.

d.	Disclosure; Absence of Certain Changes.	None of this Agreement, the
Schedules to this Agreement, the Purchaser SEC Documents (as amended to date)
contained as of their respective dates, any untrue statement of a material fact
or omitted to state any material fact necessary in order to make the statements
made herein and therein, in light of the circumstances under which they were
made, not misleading. Except as disclosed in Purchaser SEC Documents files on
EDGAR through the date hereof, since the filing of the Purchaser quarterly
report on Form 10-Q on August 6, 1999, there has been no Material Adverse
Change and no material adverse development in the business, properties,
operations, financial condition, liabilities or results of operations of the
Purchaser. The Purchaser has not taken any steps, and does not currently expect
to take any steps, to seek protection pursuant to any bankruptcy law nor does
the Purchaser or any of its Purchaser Subsidiaries have any knowledge or reason
to believe that its creditors intend to initiate involuntary bankruptcy
proceedings.

e.	Investment Intent. The Purchaser is acquiring the Shares, the A Warrant
and the B Warrant for its own account and not with a present view to or for
distributing or reselling the Shares, the A Warrant, the B Warrant or the
Warrant Shares or any part thereof or interest therein in violation of the
Securities Act; provided, however, that by making the representations herein,
the Purchaser does not agree to hold any of the Shares, the A Warrant, the B
Warrant or the Warrant Shares for any minimum or other specific term and
reserves the right to dispose of the Shares, the A Warrant, the B Warrant or
the Warrant Shares at any time in accordance with or pursuant to a registration
statement or an exemption under the Securities Act.

f.	Purchaser Status. At the time the Purchaser was offered the Shares, the
A Warrant, the B Warrant, and at the Primary Closing Date and Secondary Closing
Date, (i) it was and will be an "accredited investor" as defined in clause
(a)(7) of Rule 501 under the Securities Act and (ii) the Purchaser, either
alone or together with its representatives, had and will have such knowledge,
sophistication and experience in business and financial matters so as to be

capable of evaluating the merits and risks of the prospective investment in the
Shares and the Warrants.

g.	Reliance. The Purchaser understands and acknowledges that (i) the
Shares, the A Warrant and the B Warrant are being offered and sold to the
Purchaser without registration under the Securities Act in a private placement
that is exempt from the registration provisions of the Securities Act under
Section 4(2) of the Securities Act or Regulation D promulgated thereunder and
(ii) the availability of such exemption depends in part on, and the Company
will rely upon the accuracy and truthfulness of, the representations set forth
in this Section 2.2 and the Purchaser hereby consents to such reliance.

h.	Governmental Review. The Purchaser understands that no United States
federal or state agency or any other government or governmental agency has
passed upon or made any recommendation or endorsement of the Shares, the A
Warrant or the B Warrant.

i. Residency.  The Purchaser is a resident of the State of New York.

The Company acknowledges and agrees that the Purchaser makes no representations
or warranties with respect to the transactions contemplated hereby other than
those specifically set forth in this Section 2.2.


                                    ARTICLE III.

                                  OTHER AGREEMENTS

3.1 Transfer Restrictions.

a.	If the Purchaser should decide to dispose of the Shares, the A Warrant,
the B Warrant or the Warrant Shares held by it, the Purchaser understands and
agrees that it may do so only pursuant to an effective registration statement
under the Securities Act, to the Company or pursuant to an available exemption
from the registration requirements of the Securities Act, including Rule 144
promulgated under the Securities Act ("Rule 144"). In connection with any
transfer of any Shares, A Warrant, B Warrant or Warrant Shares other than
pursuant to an effective registration statement, Rule 144 or to the Company,
the Company may require the transferor thereof to provide to the Company a
written opinion of counsel experienced in the area of United States securities
laws selected by the transferor, the form and substance of which opinion shall
be customary for opinions of counsel in comparable transactions, to the effect
that such transfer does not require registration of such transferred securities
under the Securities Act; provided, however, that if the Shares, A Warrant, B
Warrant or Warrant Shares may be sold pursuant to Rule 144(k), no written
opinion of counsel shall be required from the Purchaser if the Purchaser
provides reasonable assurances that such security can be sold pursuant to Rule
144(k). Notwithstanding the foregoing, the Company hereby consents to and
agrees to register any transfer by the Purchaser to an Affiliate of the
Purchaser, provided that the transferee certifies to the Company that it is an
"accredited investor" as defined in Rule 501(a) under the Securities Act. Any
such transferee shall agree in writing to be bound by the terms of this
Agreement and shall have the rights of a Purchaser under this Agreement and the
Transaction Documents. If the Purchaser provides the Company with an opinion of
counsel, the form and substance of which opinion shall be customary for
opinions of counsel in comparable transactions, to the effect that a public
sale, assignment or transfer of the Shares, A Warrant, B Warrant and the
Warrant Shares may be made without registration under the Securities Act or the
Purchaser provides the Company with reasonable assurances that the Shares, A

Warrant, B Warrant and the Warrant Shares can be sold pursuant to Rule 144
without any restriction as to the number of securities acquired as of a
particular date that can then be immediately sold, the Company shall permit the
transfer, and, in the case of the Warrant Shares, promptly instruct its
transfer agent to issue one or more certificates in such name and in such
denominations as specified by the Purchaser and without any restrictive legend.
Notwithstanding the foregoing or anything else contained herein to the
contrary, the securities may be pledged as collateral in connection with a bona
fide margin account or other lending arrangement.

b.	The Purchaser agrees to the imprinting by the Company, so long as is
required by this Section 3.1(b), of the following legend on the Shares, the A
Warrant, the B Warrant and the Warrant Shares:

	THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN
	REGISTERED WITH THE SECURITIES AND EXCHANGE
	COMMISSION IN RELIANCE UPON AN EXEMPTION FROM
	REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS
	AMENDED (THE "SECURITIES ACT"), AND, ACCORDINGLY,
	MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN
	EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES
	ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN
	A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS
	OF THE SECURITIES ACT.

Neither the Shares, the A Warrant, the B Warrant nor the Warrant Shares shall
be required to contain the legend set forth above (or any other legend) (i) at
any time after transfer pursuant to a registration statement is effective under
the Securities Act covering such security, (ii) if in the written opinion of
counsel to the Company or the Purchaser experienced in the area of United
States securities laws such legend is not required under applicable
requirements of the Securities Act (including judicial interpretations and
pronouncements issued by the staff of the Commission) or (iii) if such Shares,
the A Warrant, the B Warrant or the Warrant Shares are sold pursuant to Rule
144. When requested, which request will be accompanied by the certificate
representing such shares, the Company agrees that it will provide the Purchaser
with a certificate or certificates representing the Shares, the A Warrant, the
B Warrant or the Warrant Shares, free from such legend at such time as such
legend is no longer required hereunder. If such certificate or certificates had
previously been issued with such a legend or any other legend, the Company
shall, upon request, receive such certificate or certificates free of any
legend.

c.      Notwithstanding the foregoing, the Purchaser's disposition of the
Warrant Shares shall be subject to Suspension Periods (as defined in the
Registration Rights Agreement) set forth in Section 3(r) of the Registration
Rights Agreement.

3.2	Stop Transfer Instruction. The Company may not make any notation on its
records or give instructions to any transfer agent of the Company which enlarge
the restrictions on transfer set forth in Section 3.1.

3.3	Furnishing of Information. Until the Shares, the A Warrant, the B
Warrant or the Warrant Shares have been sold pursuant to a registration
statement under the Securities Act or are eligible for sale pursuant to Rule
144(k), the Company will cause its Shares to continue at all times to be
registered under Section 12(g) of the Exchange Act, will timely file (or obtain
extensions in respect thereof and file within the applicable grace period) all
reports required to be filed by the Company after the date hereof pursuant to

Section 13, 14 or 15(d) of the Exchange Act and, unless filed by EDGAR,
promptly furnish, but in no event later than two (2) business days after the
filing thereof with the Commission, the Purchaser with true and complete copies
of all such filings, and will not take any action or file any document (whether
or not permitted by the Exchange Act or the rules thereunder) to terminate or
suspend such reporting and filing obligations. Until the Shares, the A Warrant,
the B Warrant or the Warrant Shares have been sold pursuant to a registration
statement under the Securities Act or are eligible for sale pursuant to Rule
144(k), if the Company is not required to file reports pursuant to Section
13(a) or 15(d) of the Exchange Act, it will prepare and furnish to the
Purchaser and make publicly available in accordance with Rule 144(c)
promulgated under the Securities Act annual and quarterly financial statements,
together with a discussion and analysis of such financial statements in form
and substance substantially similar to those that would otherwise be required
to be included in reports required by Section 13(a) or 15(d) of the Exchange
Act, as well as any other information required thereby, in the time period that
such filings would have been required to have been made under the Exchange Act.
The Company further covenants that it will take such further action as any
holder of the Shares, the A Warrant, the B Warrant or the Warrant Shares may
reasonably request, all to the extent required from time to time to enable such
Person to sell the Shares, the A Warrant, the B Warrant or the Warrant Shares
without registration under the Securities Act within the limitation of the
exemptions provided by Rule 144 promulgated under the Securities Act, including
the legal opinion referenced above in Section 3.1(b).

3.4 Blue Sky Laws. In accordance with the Registration Rights Agreement, the
Company shall (i) qualify the Warrant Shares under the securities or "blue sky"
laws of such jurisdictions as the Purchaser may request (or to obtain an
exemption from such qualification), (ii) shall provide evidence of any such
action so taken to the Purchaser on or prior to the Closing Date and (iii)
shall continue such qualification at all times through the resale of all
Warrant Shares, but in any event not past the 4th anniversary of the Closing
Date.

3.5 Integration. The Company shall not sell, offer for sale or solicit offers
to buy or otherwise negotiate in respect of any security (as defined in Section
2 of the Securities Act) that would be integrated with the offer or sale of the
Shares, the A Warrant, the B Warrant or the Warrant Shares in a manner that
would require the registration under the Securities Act or the sale of the
Shares, the A Warrant, the B Warrant or the Warrant Shares to any Purchaser or
cause the offering of such securities to be integrated with any other offering
of securities by the Company for the purpose of any stockholder approval
provision applicable to the Company or its securities.

3.6 Listing and Reservation of Warrant Shares.

a. The Company shall (i) not later than three (3) business days after each
Closing Date prepare and file with Nasdaq (as well as any other national
securities exchange or market on which the Common Stock is then listed) an
additional shares listing application or a letter acceptable to Nasdaq covering
and listing a number of shares of Common Stock which are issued at such Closing
or issuable pursuant to the Warrants issuable at such Closing which is at least
equal to 1 times the maximum number of Warrant Shares then issuable, (ii) take
all steps necessary to cause such shares of Common Stock to be approved for
listing on Nasdaq (as well as on any other national securities exchange or
market on which the Common Stock is then listed) as soon as possible
thereafter, (iii) maintain, so long as any other shares of Common Stock shall
be so listed, such listing of all such Warrant Shares, and (iv) provide to the
Purchaser evidence of such listing. Neither the Company nor any of its

Subsidiaries shall take any action which may result in the delisting or
suspension of the Common Stock on Nasdaq. Prior to the effectiveness of the
Initial Registration Statement (as defined in the Registration Rights
Agreement), the Company shall promptly provide to the Purchaser copies of any
notices it receives from Nasdaq regarding the continued eligibility of the
Common Stock for listing on such automated quotation system, so long as such
notice does not include material, nonpublic information. The Company shall pay
all fees and expenses in connection with satisfying its obligations under this
Section 3.6(a).

b. The Company at all times shall reserve a sufficient number of shares of its
authorized but unissued Common Stock to provide for 1 times the full exercise
of the outstanding Warrants. If at any time the number of shares of Common
Stock authorized and reserved for issuance is insufficient to cover 100% of the
number of Warrant Shares issued and issuable upon exercise of the Warrants
(based on the Exercise Price (as defined in the Warrants) of the Warrants in
effect from time to time) without regard to any limitation on conversions or
exercises, the Company will promptly take all corporate action necessary to
authorize and reserve 100% of such shares, including, without limitation,
calling a special meeting of stockholders to authorize additional shares to
meet the Company's obligations under this Section 3.6(b), in the case of an
insufficient number of authorized shares, and using its best efforts to obtain
stockholder approval of an increase in such authorized number of shares. In
addition, upon the occurrence of an adjustment of the Exercise Price (as
defined in the Warrant), the Company shall be required to file, within ten (10)
business days of such event, a registration statement covering the product of
1.0 and the number Warrant Shares, less the number of Warrant Shares for which
a registration statement is then effective. The Company shall use its best
efforts to cause such registration statement to be declared effective under the
Securities Act as promptly as possible after the filing thereof, but in any
event on or prior to that date which is one hundred and twenty (120) days after
the filing date thereof. All calculations of the above amount shall be made
without regard to any limitation on exercises of Warrants.

3.7 Notice of Breaches.

a.	The Company and the Purchaser shall give prompt written notice to the
other of any breach by it of any representation, warranty or other agreement
contained in this Agreement or in the Transaction Documents. However, no
disclosure by either party pursuant to this Section 3.7 shall be deemed to cure
any breach of any representation, warranty or other agreement contained herein
or in the Transaction Documents.

b.	Notwithstanding the generality of Section 3.7(a), the Company shall
promptly notify, provided such notification will not constitute material
non-public information, the Purchaser of any notice or claim (written or oral)
that it receives from any lender of the Company or any Subsidiary to the effect
that the consummation of the transactions contemplated hereby and by the
Registration Rights Agreement violates or would violate any written agreement
or understanding between such lender and the Company or any Subsidiary, and the
Company shall promptly furnish by facsimile to the Purchaser a copy of any
written statement in support of or relating to such claim or notice.

c.	The default by any Purchaser of any of its obligations, representations
or warranties under this Agreement or the Transaction Documents shall not be
imputed to, and shall have no effect upon, any other Purchaser or affect the
Companys' obligations under this Agreement or any Transaction Document to any
non-defaulting Purchaser.


3.8 Form D. The Company agrees to file a Form D with respect to the Shares, A
Warrant and B Warrant as required by Rule 506 under Regulation D and to provide
a copy thereof to the Purchaser promptly after such filing.

3.9	Use of Proceeds. The Company intends to use the proceeds from the sale
of the Common Stock and the exercise of the Warrants (i) to enhance the
Company's ability to satisfy purchase orders that both parties anticipate that
the Company will receive from Plug Power, (ii) otherwise to develop the
Company's module manufacturing capability or (iii) in connection with the
transition and integration of Ling Electronics into the Company's other
operations and not to fund future investment in Beacon Power Corporation. The
Company is free to use the proceeds of the offering for other corporate
purposes if the board of directors of the Company determines that it is in the
best interest of the Company to do so. The Purchaser acknowledges that the
Company may, in the future, acquire cash from other sources and that it may
invest such cash in Beacon Power Corporation. It is not the intention of the
parties to establish an auditable trail between receipt of the proceeds and the
use of such funds.

3.10	Board Representation.

a.	The Company agrees to nominate and recommend to its shareholders the
election to the Company's Board of Directors two person designated by the
Purchaser and acceptable to the Company's Board of Directors acting reasonably
(it being agreed that in acting reasonably the Company's Board of Directors may
consider the desirability of having two members of the Company's Board of
Directors affiliated with the Purchaser). The Company's obligations under this
Section 3.10(a) shall terminate if the Purchaser does not own five percent (5%)
or more on or before July 31, 2000 or ceases to own five percent (5%) or more
of the Company's outstanding Common Stock. The initial nominee to the Company's
Board of Directors will be Alan Goldberg.

b.	The Purchaser agrees to nominate and recommend to its shareholders the
election to the Company's Board of Directors one person designated by the
Company. The initial nominee will be David Eisenhaure. The Purchaser's
obligations under this Section 3.10(b) shall terminate if the Purchaser ceases
to own five percent (5%) or more of the Company's outstanding Common Stock or
the Company's obligations under Section 3.10(a) ceases, whichever occurs first.

c. 	Both parties will endeavor to have the representatives set forth above
elected or appointed to their boards as soon as possible, but in no event later
than December 1, 1999. The Purchaser shall have no obligation to appoint or
elect the Company's nominee to its Board of Directors until the Company has
appointed or elected the Purchaser's nominees to the Company's Board of
Directors.

3.11	Transactions with Affiliates. So long as any Shares, A Warrant or B
Warrant are outstanding, the Company shall not, and shall cause each of its
Subsidiaries not to, enter into, amend, modify or supplement, or permit any
Subsidiary to enter into, amend, modify or supplement, any agreement,
transaction, commitment or arrangement with any of its or any Subsidiary's
officers, directors or persons who were officers or directors at any time
during the previous two years, stockholders who beneficially own 5% or more of
the Common Stock, or Affiliates or any individual related by blood, marriage or
adoption to any such individual or with any entity in which any such entity or
individual owns a 5% or more beneficial interest (each a "Related Party"),
except for (a) customary employment arrangements and benefit programs on
reasonable terms, (b) any agreement, transaction, commitment or arrangement on
an arms-length basis on terms no less favorable than terms which would have

been obtainable from a Person other than such Related Party, or (c) any
agreement, transaction, commitment or arrangement which is approved by a
majority of the disinterested directors of the Company. For purposes hereof,
any director who is also an officer of the Company or any Subsidiary of the
Company shall not be a disinterested director with respect to any such
agreement, transaction, commitment or arrangement. "Affiliate" for purposes of
this section only means, with respect to any person or entity, another person
or entity that, directly or indirectly, (i) has a 5% or more equity interest in
that person or entity, (ii) has 5% or more common ownership with that person or
entity, (iii) controls that person or entity, or (iv) shares common control
with that person or entity. "Control" or "Controls" for purposes of this
section means that a person or entity has the power, direct or indirect, to
conduct or govern the policies of another person or entity.

3.12	Transfer Agent Instructions. At the Primary Closing the Company shall
issue irrevocable instructions to its transfer agent (and shall issue to any
subsequent transfer agent as required), to issue certificates, registered in
the name of the Purchaser or its respective nominee(s), for the Warrant Shares
issuable pursuant to the A Warrant in such amounts as specified from time to
time by the Purchaser to the Company in a form acceptable to the Purchaser (the
"Primary Closing Irrevocable Transfer Agent Instructions"). At the Secondary
Closing the Company shall issue irrevocable instructions to its transfer agent
(and shall issue to any subsequent transfer agent as required), to issue
certificates, registered in the name of the Purchaser or its respective
nominee(s), for the Warrant Shares issuable pursuant to the B Warrant in such
amounts as specified from time to time by the Purchaser to the Company in a
form acceptable to the Purchaser (the "Secondary Closing Irrevocable Transfer
Agent Instructions"). So long as required pursuant to Section 3.1(b), all such
certificates shall bear the restrictive legend specified in Section 3.1(b) of
this Agreement. The Company warrants that no instruction other than the Primary
Closing Irrevocable Transfer Agent Instructions and the Secondary Closing
Irrevocable Transfer Agent Instructions referred to in this Section 3.12, and
stop transfer instructions to give effect to Section 3.1 hereof (in the case of
the Warrant Shares, prior to registration of the Shares under the Securities
Act) will be given by the Company to its transfer agent and that the Shares,
the A Warrant, the B Warrant or the Warrant Shares shall otherwise be freely
transferable on the books and records of the Company as and to the extent
provided in this Agreement and the Transaction Documents. The Company
acknowledges that a breach by it of its obligations hereunder will cause
irreparable harm to the Purchaser by violating the intent and purpose of the
transactions contemplated hereby. Accordingly, the Company acknowledges that
the remedy at law for a breach of its obligations under this Section 3.12 will
be inadequate and agrees, in the event of a beach or threatened breach by the
Company of the provisions of this Section 3.12, that the Purchaser, shall be
entitled, in addition to all other available remedies, to an order and/or
injunction restraining any breach and requiring immediate issuance and
transfer, without the necessity of showing economic loss and without any bond
or other security being required.

3.13 Press Release; Filing of Form 8-K.  Subject to the provisions of Section
6.10 hereof, prior to the opening of Nasdaq on October 21, 1999, the Company
and the Purchaser shall file a joint press release in form and substance
acceptable to the Company and the Purchaser.

3.14	Purchaser Transfer Agent Instructions. At the Primary Closing the
Purchaser shall issue irrevocable instructions to its transfer agent (and shall
issue to any subsequent transfer agent as required), to issue certificates,
registered in the name of the Company or its respective nominee(s), for the M
Shares issuable pursuant to the MA Warrant in such amounts as specified from

time to time by the Company to the Purchaser in a form acceptable to the
Company (the "Primary Closing Irrevocable Transfer Agent Instructions"). At the
Secondary Closing the Purchaser shall issue irrevocable instructions to its
transfer agent (and shall issue to any subsequent transfer agent as required),
to issue certificates, registered in the name of the Company or its respective
nominee(s), for the M Shares issuable pursuant to the MB Warrant in such
amounts as specified from time to time by the Company to the Purchaser in a
form acceptable to the Company (the "Secondary Closing Irrevocable Transfer
Agent Instructions"). So long as required pursuant to Section 3.15(b), all such
certificates shall bear the restrictive legend specified in Section 3.15(b) of
this Agreement. The Purchaser warrants that no instruction other than the
Primary Closing Irrevocable Transfer Agent Instructions and the Secondary
Closing Irrevocable Transfer Agent Instructions referred to in this Section
3.14, and stop transfer instructions to give effect to Section 3.15 hereof (in
the case of the M Shares, prior to registration of the Shares under the
Securities Act) will be given by the Purchaser to its transfer agent and that
the M Shares, the MA Warrant or the MB Warrant shall otherwise be freely
transferable on the books and records of the Purchaser as and to the extent
provided in this Agreement and the Transaction Documents. The Purchaser
acknowledges that a breach by it of its obligations hereunder will cause
irreparable harm to the Company by violating the intent and purpose of the
transactions contemplated hereby. Accordingly, the Purchaser acknowledges that
the remedy at law for a breach of its obligations under this Section 3.14 will
be inadequate and agrees, in the event of a beach or threatened breach by the
Purchaser of the provisions of this Section 3.14, that the Company, shall be
entitled, in addition to all other available remedies, to an order and/or
injunction restraining any breach and requiring immediate issuance and
transfer, without the necessity of showing economic loss and without any bond
or other security being required.

3.15 Purchaser Transfer Restrictions.

a.	If the Company should decide to dispose of the M Shares, the MA Warrant
or the MB Warrant held by it, the Company understands and agrees that it may do
so only pursuant to an effective registration statement under the Securities
Act, to the Company or pursuant to an available exemption from the registration
requirements of the Securities Act, including Rule 144 promulgated under the
Securities Act ("Rule 144"). In connection with any transfer of any M Shares,
MA Warrant or MB Warrant other than pursuant to an effective registration
statement, Rule 144 or to the Purchaser, the Purchaser may require the
transferor thereof to provide to the Purchaser a written opinion of counsel
experienced in the area of United States securities laws selected by the
transferor, the form and substance of which opinion shall be customary for
opinions of counsel in comparable transactions, to the effect that such
transfer does not require registration of such transferred securities under the
Securities Act; provided, however, that if the M Shares, MA Warrant or MB
Warrant may be sold pursuant to Rule 144(k), no written opinion of counsel
shall be required from the Company if the Company provides reasonable
assurances that such security can be sold pursuant to Rule 144(k).
Notwithstanding the foregoing, the Purchaser hereby consents to and agrees to
register any transfer by the Company to an Affiliate of the Company, provided
that the transferee certifies to the Purchaser that it is an "accredited
investor" as defined in Rule 501(a) under the Securities Act. Any such
transferee shall agree in writing to be bound by the terms of this Agreement
and shall have the rights of a Company under this Agreement and the Transaction
Documents. If the Company provides the Purchaser with an opinion of counsel,
the form and substance of which opinion shall be customary for opinions of
counsel in comparable transactions, to the effect that a public sale,
assignment or transfer of the M Shares, MA Warrant and MB Warrant may be made

without registration under the Securities Act or the Purchaser provides the
Company with reasonable assurances that the M Shares, MA Warrant and the MB
Warrant can be sold pursuant to Rule 144 without any restriction as to the
number of securities acquired as of a particular date that can then be
immediately sold, the Purchaser shall permit the transfer, and, in the case of
the M Shares, promptly instruct its transfer agent to issue one or more
certificates in such name and in such denominations as specified by the Company
and without any restrictive legend. Notwithstanding the foregoing or anything
else contained herein to the contrary, the securities may be pledged as
collateral in connection with a bona fide margin account or other lending
arrangement.

b.	The Company agrees to the imprinting by the Purchaser, so long as is
required by this Section 3.15(b), of the following legend on the M Shares, the
MA Warrant and the MB Warrant:

	THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN
	REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION
	IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER
	THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES
	ACT"), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD
	EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT
	UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE
	EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE
	REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.

Neither the M Shares, the MA Warrant nor the MB Warrant shall be required to
contain the legend set forth above (or any other legend) (i) at any time after
transfer pursuant to a registration statement is effective under the Securities
Act covering such security, (ii) if in the written opinion of counsel to the
Purchaser of the Company experienced in the area of United States securities
laws such legend is not required under applicable requirements of the
Securities Act (including judicial interpretations and pronouncements issued by
the staff of the Commission) or (iii) if such M Shares, the MA Warrant or the
MB Warrant are sold pursuant to Rule 144. When requested, which request will be
accompanied by the certificate representing such shares, the Purchaser agrees
that it will provide the Company with a certificate or certificates
representing the M Shares, the MA Warrant or the MB Warrant, free from such
legend at such time as such legend is no longer required hereunder. If such
certificate or certificates had previously been issued with such a legend or
any other legend, the Purchaser shall, upon request, receive such certificate
or certificates free of any legend.

3.16	Purchaser Stop Transfer Instruction. The Purchaser may not make any
notation on its records or give instructions to any transfer agent of the
Company which enlarge the restrictions on transfer set forth in Section 3.14.

3.17	Purchaser Furnishing of Information. Until the M Shares, the MA Warrant
or the MB Warrant have been sold pursuant to a registration statement under the
Securities Act or are eligible for sale pursuant to Rule 144(k), the Purchaser
will cause its M Shares to continue at all times to be registered under Section
12(g) of the Exchange Act, will timely file (or obtain extensions in respect
thereof and file within the applicable grace period) all reports required to be
filed by the Purchaser after the date hereof pursuant to Section 13, 14 or
15(d) of the Exchange Act and, unless filed by EDGAR, promptly furnish, but in
no event later than two (2) business days after the filing thereof with the
Commission, the Company with true and complete copies of all such filings, and
will not take any action or file any document (whether or not permitted by the
Exchange Act or the rules thereunder) to terminate or suspend such reporting

and filing obligations. Until the M Shares, the MA Warrant or the MB Warrant
have been sold pursuant to a registration statement under the Securities Act or
are eligible for sale pursuant to Rule 144(k), if the Purchaser is not required
to file reports pursuant to Section 13(a) or 15(d) of the Exchange Act, it will
prepare and furnish to the Company and make publicly available in accordance
with Rule 144(c) promulgated under the Securities Act annual and quarterly
financial statements, together with a discussion and analysis of such financial
statements in form and substance substantially similar to those that would
otherwise be required to be included in reports required by Section 13(a) or
15(d) of the Exchange Act, as well as any other information required thereby,
in the time period that such filings would have been required to have been made
under the Exchange Act. The Purchaser further covenants that it will take such
further action as any holder of the M Shares, the MA Warrant or the MB Warrant
may reasonably request, all to the extent required from time to time to enable
such Person to sell the M Shares, the MA Warrant or the MB Warrant without
registration under the Securities Act within the limitation of the exemptions
provided by Rule 144 promulgated under the Securities Act, including the legal
opinion referenced above in Section 3.15(b).

3.18	Purchaser Blue Sky Laws. In accordance with the MTI Registration Rights
Agreement, the Purchaser shall (i) qualify the M Shares under the securities or
"blue sky" laws of such jurisdictions as the Company may request (or to obtain
an exemption from such qualification), (ii) shall provide evidence of any such
action so taken to the Company on or prior to the Primary Closing Date and
(iii) shall continue such qualification at all times through the resale of all
M Shares, but in any event not past the 4th anniversary of the Primary Closing
Date.

3.19 Purchaser Listing and Reservation of M Shares.

a.	The Purchaser shall (i) not later than three (3) business days after
each Closing Date prepare and file with Nasdaq (as well as any other national
securities exchange or market on which the common stock is then listed) an
additional shares listing application or a letter acceptable to Nasdaq covering
and listing a number of shares of common stock which are issuable pursuant to
the Warrants issuable at such Closing which is at least equal to 1 times the
maximum number of M Shares then issuable, (ii) take all steps necessary to
cause such shares of common stock to be approved for listing on Nasdaq (as well
as on any other national securities exchange or market on which the Common
Stock is then listed) as soon as possible thereafter, (iii) maintain, so long
as any other shares of common stock shall be so listed, such listing of all
such M Shares, and (iv) provide to the Company evidence of such listing.
Neither the Purchaser nor any of its Subsidiaries shall take any action which
may result in the delisting or suspension of the common stock on Nasdaq. The
Purchaser shall pay all fees and expenses in connection with satisfying its
obligations under this Section 3.19(a).

b.	The Purchaser at all times shall reserve a sufficient number of shares
of its authorized but unissued common stock to provide for 1 times the full
exercise of the outstanding Warrants. If at any time the number of shares of
common stock authorized and reserved for issuance is insufficient to cover 100%
of the number of Warrant Shares issued and issuable upon exercise of the
warrants (based on the Exercise Price (as defined in the Warrants) of the
Warrants in effect from time to time) without regard to any limitation on
conversions or exercises, the Purchaser will promptly take all corporate action
necessary to authorize and reserve 100% of such shares, including, without
limitation, calling a special meeting of stockholders to authorize additional
shares to meet the Company's obligations under this Section 3.19(b), in the
case of an insufficient number of authorized shares, and using its best efforts

to obtain stockholder approval of an increase in such authorized number of
shares. 3.20	Ordinary Course Brokerage and Trading. The Purchaser represents
and agrees that neither Purchaser, nor any person that is required by internal
policy to pre-clear securities transactions with the Purchaser will, enter into
any short sales of the Company's common stock, except in connection with an
intended sale of common stock, and in such event, only to the extent covered
within seven (7) Trading Days of such short sale. In addition, the Purchaser
represents and agrees on behalf of itself and each of the persons identified in
the preceding sentence that it will not establish a short position or sell any
of the Shares during (i) the twenty (20) Trading Day period prior to the one
(1) year anniversary of the Primary Closing Date or (ii) the seventy five (75)
Trading Days ending on August 28, 2003 and 2006.

                                    ARTICLE IV.

                                    CONDITIONS

4.1 Primary Closing Conditions.

a.	Conditions Precedent to the Obligation of the Company to Sell. The
obligation of the Company to sell the Shares, the A Warrant, the B Warrant or
the Warrant Shares hereunder is subject to the satisfaction or waiver (with
prior written notice to the Purchaser) by the Company, at or before the Primary
Closing, of each of the following conditions:

(1)     Accuracy of the Purchaser's Representations and Warranties. The
representations and warranties of the Purchaser in this Agreement shall be true
and correct in all material respects as of the date when made (except for
representations and warranties that speak as of a specific date) and as of the
Closing Date;

(2)	Performance by the Purchaser. The Purchaser shall have performed,
satisfied and complied in all material respects with all covenants, agreements
and conditions required by this Agreement to be performed, satisfied or
complied with by the Purchaser at or prior to the Primary Closing; and

(3)	No Injunction. No statute, rule, regulation, executive order, decree,
ruling or injunction shall have been enacted, entered, promulgated or endorsed
by any court or governmental authority of competent jurisdiction which
prohibits the consummation of any of the transactions contemplated by this
Agreement or the Transaction Documents.

(4)	Shares of Common Stock.	The Purchaser shall have duly reserved the
number of M Shares required by this Agreement and the Transaction Documents to
be reserved for issuance upon exercise of the MA Warrant;

(5)	Transfer Agent Instructions. The Primary Closing Irrevocable Transfer
Agent Instructions, in a form acceptable to the Company, shall have been
delivered to and acknowledged in writing by the Purchaser's transfer agent with
a copy forwarded to each Company;

(6)	Resolutions. The Board of Directors of the Purchaser shall have adopted
resolutions consistent with Section 2.1(b) and in a form reasonably acceptable
to the Company (the "Resolutions");

(7)	Litigation. No litigation shall have been instituted or threatened
against the Purchaser which could reasonably be expected to, individually or in
the aggregate, have an MTI Material Adverse Effect; and


(8)	Adverse Changes. Since the date of the financial statements included in
the Purchaser's Quarterly Report on Form 10-Q or Annual Report on Form 10-K,
whichever is most recent, last filed prior to the date of this Agreement, no
event which had a Material Adverse Effect shall have occurred which is not
disclosed in the Schedules hereto (for purposes hereof, changes in the market
price of the Common Stock may be considered in determining whether there has
occurred an event which has had an MTI Material Adverse Effect).

b.	Conditions Precedent to the Obligation of the Purchaser to Purchase.
The obligation of the Purchaser hereunder to acquire and pay for the Primary
Closing Shares and the A Warrant is subject to the satisfaction or waiver (with
prior written notice to the Company) by the Purchaser, at or before the Primary
Closing, of each of the following conditions:

(1)     Accuracy of the Company's Representations and Warranties. The
representations and warranties of the Company set forth in this Agreement shall
be true and correct in all respects as of the date when made and as of the
Primary Closing Date as though made at that time (except for representations
and warranties that speak as of a specific date);

(2)	Performance by the Company. The Company shall have performed, satisfied
and complied in all material respects with all covenants, agreements and
conditions required by this Agreement to be performed, satisfied or complied
with by the Company at or prior to the Primary Closing;

(3)	No Injunction. No statute, rule, regulation, executive order, decree,
ruling or injunction shall have been enacted, entered, promulgated or endorsed
by any court or governmental authority of competent jurisdiction which
prohibits the consummation of any of the transactions contemplated by this
Agreement and the Transaction Documents;

(4)	No Suspensions of Trading in Common Stock. The trading in the Common
Stock shall not have been suspended by the Commission or on Nasdaq (except for
any suspension of trading of limited duration solely to permit dissemination of
material information regarding the Company);

(5)	Listing of Common Stock. The Common Stock shall have been at all times
since the date hereof, and on the Primary Closing Date shall be, listed for
trading on Nasdaq;

(6)	Required Approvals. All Required Approvals shall have been obtained and
copies thereof delivered to the Purchaser;

(7)	Shares of Common Stock. The Company shall have duly reserved the number
of Warrant Shares required by this Agreement and the Transaction Documents to
be reserved for issuance upon exercise of the A Warrant;

(8)	Change of Control. No Change of Control shall have occurred between the
date hereof and the Closing Date. "Change of Control" means the occurrence of
any of (i) an acquisition after the date hereof by an individual or legal
entity or "group" (as described in Rule 13d-5(b)(1) promulgated under the
Exchange Act), other than the Purchaser or any of their Affiliates, of in
excess of 40% of the voting securities of the Company, (ii) a replacement of
more than one-half of the members of the Company's Board of Directors which is
not approved by those individuals who are members of the Board of Directors on
the date hereof in one or a series of related transactions, (iii) the merger of
the Company with or into another entity, consolidation or sale of all or
substantially all of the assets of the Company in one or a series of related
transactions, or (v) the execution by the Company of an agreement to which the

Company is a party or by which it is bound, providing for any of the events set
forth above in (i), (ii) , (iii), (iv) or (v);

(9)	Transfer Agent Instructions. The Primary Closing Irrevocable Transfer
Agent Instructions, in a form acceptable to the Purchaser, shall have been
delivered to and acknowledged in writing by the Company's transfer agent with a
copy forwarded to each Purchaser;

(10)	Resolutions. The Board of Directors of the Company shall have adopted
resolutions consistent with Section 2.1(b) and in a form reasonably acceptable
to the Purchaser (the "Resolutions");

(11)	Litigation. No litigation shall have been instituted or threatened
against the Company which could reasonably be expected to, individually or in
the aggregate, have a Material Adverse Effect; and

(12)	Adverse Changes. Since the date of the financial statements included in
the Company's Quarterly Report on Form 10-Q or Annual Report on Form 10-K,
whichever is most recent, last filed prior to the date of this Agreement, no
event which had a Material Adverse Effect shall have occurred which is not
disclosed in the Schedules hereto (for purposes hereof, changes in the market
price of the Common Stock may be considered in determining whether there has
occurred an event which has had a Material Adverse Effect).

c.	Documents and Certificates. At the Primary Closing, the Company shall
have delivered to the Purchaser the following in form and substance reasonably
satisfactory to the Purchaser:

(1)     Opinion. An opinion of the Company's legal counsel in the form attached
hereto as Exhibit D dated as of the Primary Closing Date;

(2)	Common Stock Certificate. A Common Stock Certificate(s) representing
the Primary Closing Shares, registered in the name of the Purchaser, in form
satisfactory to the Purchaser;

(3)	Warrant. A warrant representing the A Warrant purchased by the
Purchaser, registered in the name of the Purchaser;

(4)	Registration Rights. The Company shall have executed and delivered the
SatCon Registration Rights Agreement;

(5)     Officer's Certificate. An Officer's Certificate dated the Primary
Closing Date and signed by an executive officer of the Company confirming the
accuracy of the Company's representations, warranties and covenants as of the
Primary Closing Date and confirming the compliance by the Company with the
conditions precedent set forth in this Section 4.1 as of the Primary Closing
Date;

(6)     Secretary's Certificate. A Secretary's Certificate dated the Primary
Closing Date and signed by the Secretary or Assistant Secretary of the Company
certifying (A) that attached thereto is a true and complete copy of the
Certificate of Incorporation of the Company, as in effect on the Closing Date,
(B) that attached thereto is a true and complete copy of the by-laws of the
Company, as in effect on the Closing Date and (C) that attached thereto is a
true and complete copy of the Resolutions duly adopted by the Board of
Directors of the Company authorizing the execution, delivery and performance of
this Agreement and of the Transaction Documents, and that such Resolutions have
not been modified, rescinded or revoked;


(7)	Certificates of Incorporation. The Company shall have delivered to the
Purchaser a copy of a certificate evidencing the incorporation and good
standing of the Company and each Subsidiary, in such corporation's state of
incorporation issued by the Secretary of State of such state of incorporation
as of a date within ten days of the Primary Closing Date. The Company shall
have delivered to the Purchaser a copy of its Certificate of Incorporation as
certified by the Secretary of State of the State of Delaware within ten days of
the Primary Closing Date;

(8)	Transfer Agent Letter. The Company shall have delivered to the
Purchaser a letter from the Company's transfer agent certifying the number of
shares of Common Stock outstanding as of a date within five days of the Primary
Closing Date; and

(9)	Other Documents. The Company shall have delivered to each Purchaser
such other documents relating to the transactions contemplated by the
Transaction Documents as the Purchaser or its counsel may reasonably request.

d.	Purchaser Documents and Certificates. At the Primary Closing, the
Purchaser shall have delivered to the Company the following in form and
substance reasonably satisfactory to the Company:

(1)	Cash Payment.	The Purchaser shall deliver, as directed by the
Company, two million, five hundred seventy thousand dollars ($2,570,000) in
United States dollars in immediately available funds to an account or accounts
designated in writing by the Company;

(2)	Warrant. A warrant representing the MA Warrant purchased by the
Company, registered in the name of the Company;

(3)	Registration Rights. The Purchaser shall have executed and delivered
the MTI Registration Rights Agreement; and

(4)     Officer's Certificate. An Officer's Certificate dated the Primary
Closing Date and signed by an executive officer of the Purchaser confirming the
accuracy of the Purchaser's representations, warranties and covenants as of the
Primary Closing Date and confirming the compliance by the Purchaser with the
conditions precedent set forth in this Section 4.1 as of the Primary Closing
Date;
	4.2	Secondary Closing Conditions.

a.	Conditions Precedent to the Obligation of the Company to Sell. The
obligation of the Company to sell the Secondary Closing Shares and the B
Warrant hereunder is subject to the satisfaction or waiver (with prior written
notice to the Purchaser) by the Company, at or before the Secondary Closing, of
each of the following conditions:

(1)     Accuracy of the Purchaser's Representations and Warranties. The
representations and warranties of the Purchaser in this Agreement shall be true
and correct in all material respects as of the date when made (except for
representations and warranties that speak as of a specific date) and as of the
Secondary Closing Date;

(2)	Performance by the Purchaser. The Purchaser shall have performed,
satisfied and complied in all material respects with all covenants, agreements
and conditions required by this Agreement to be performed, satisfied or
complied with by such Purchaser at or prior to the Secondary Closing; and



(3)	No Injunction. No statute, rule, regulation, executive order, decree,
ruling or injunction shall have been enacted, entered, promulgated or endorsed
by any court or governmental authority of competent jurisdiction which
prohibits the consummation of any of the transactions contemplated by this
Agreement or the Transaction Documents.

(4)	Shares of Common Stock.	The Purchaser shall have duly reserved the
number of M Shares required by this Agreement and the Transaction Documents to
be reserved for issuance upon exercise of the MB Warrant;

(5)	Transfer Agent Instructions. The Secondary Closing Irrevocable Transfer
Agent Instructions, in a form acceptable to the Company, shall have been
delivered to and acknowledged in writing by the Purchaser's transfer agent with
a copy forwarded to each Company;

(6)	Resolutions. The Board of Directors of the Purchaser shall have adopted
resolutions consistent with Section 2.2(b) and in a form reasonably acceptable
to the Company (the "Resolutions");

(7)	Litigation. No litigation shall have been instituted or threatened
against the Purchaser which could reasonably be expected to, individually or in
the aggregate, have an MTI Material Adverse Effect; and

(8)	Adverse Changes. Since the date of the financial statements included in
the Purchaser's Quarterly Report on Form 10-Q or Annual Report on Form 10-K,
whichever is most recent, last filed prior to the date of this Agreement, no
event which had a Material Adverse Effect shall have occurred which is not
disclosed in the Schedules hereto (for purposes hereof, changes in the market
price of the Common Stock may be considered in determining whether there has
occurred an event which has had an MTI Material Adverse Effect).

b.	Conditions Precedent to the Obligation of the Purchaser to Purchase.
The obligation of the Purchaser hereunder to acquire and pay for the Secondary
Closing Shares and the B Warrant at the Secondary Closing is subject to the
satisfaction or waiver (with prior written notice to the Company) by the
Purchaser, as of the date of the Secondary Closing, of each of the following
conditions:

(1)     Accuracy of the Company's Representations and Warranties. The
representations and warranties of the Company set forth in this Agreement shall
be true and correct in all material respects as of the date when made and as of
the Secondary Closing Date as though made at that time (except for
representations and warranties that speak as of a specific date);

(2)	Performance by the Company. The Company shall have performed, satisfied
and complied in all material respects with all covenants, agreements and
conditions required by this Agreement to be performed, satisfied or complied
with by the Company at or prior to the Secondary Closing;

(3)	No Injunction. No statute, rule, regulation, executive order, decree,
ruling or injunction shall have been enacted, entered, promulgated or endorsed
by any court or governmental authority of competent jurisdiction which
prohibits the consummation of any of the transactions contemplated by this
Agreement and the Transaction Documents;

(4)	No Suspensions of Trading in Common Stock. The trading in the Common
Stock shall not have been suspended by the Commission or on Nasdaq (except for
any suspension of trading of limited duration solely to permit dissemination of
material information regarding the Company);

(5)	Listing of Common Stock. The Common Stock shall have been at all times
since the date hereof, and on the Secondary Closing Date shall be, listed for
trading on Nasdaq;

(6)	Required Approvals. All Required Approvals shall have been obtained and
copies thereof delivered to such Purchaser;

(7)	Shares of Common Stock. The Company shall have duly reserved the number
of Warrant Shares required by this Agreement and the Transaction Documents to
be reserved for issuance upon exercise of the Warrants;

(8)	Change of Control. No Change of Control shall have occurred between the
date hereof and the Secondary Closing Date. "Change of Control" means the
occurrence of any of (i) an acquisition after the date hereof by an individual
or legal entity or "group" (as described in Rule 13d-5(b)(1) promulgated under
the Exchange Act), other than the Purchasers or any of their Affiliates, of in
excess of 40% of the voting securities of the Company, (ii) a replacement of
more than one-half of the members of the Company's Board of Directors which is
not approved by those individuals who are members of the Board of Directors on
the date hereof in one or a series of related transactions, (iii) the merger of
the Company with or into another entity, consolidation or sale of all or
substantially all of the assets of the Company in one or a series of related
transactions, or (v) the execution by the Company of an agreement to which the
Company is a party or by which it is bound, providing for any of the events set
forth above in (i), (ii) , (iii), (iv) or (v);

(9)	Transfer Agent Instructions. The Irrevocable Transfer Agent
Instructions, in a form acceptable to the Purchaser, shall have been delivered
to and acknowledged in writing by the Company's transfer agent with a copy
forwarded to the Purchaser;

(10)	Litigation. No litigation shall have been instituted or threatened
against the Company which could reasonably be expected to, individually or in
the aggregate, have a Material Adverse Effect; and

(11)	Adverse Changes. Since the date of the Primary Closing, no event which
had a Material Adverse Effect shall have occurred which is not disclosed in the
Schedules hereto (for purposes hereof, changes in the market price of the
Common Stock may be considered in determining whether there has occurred an
event which has had a Material Adverse Effect but shall not themselves
constitute a Material Adverse Effect).
c.	Documents and Certificates. At the Secondary Closing, the Company shall
have delivered to the Purchaser the following in form and substance reasonably
satisfactory to the Purchaser:

(1)	Stock Certificate. A Stock Certificate representing the Secondary
Closing Shares, registered in the name of the Purchaser, in form satisfactory
to the Purchaser;

(2)	Warrant. A warrant representing the B Warrant purchased by the
Purchaser, registered in the name of the Purchaser;

(3)     Officer's Certificate. An Officer's Certificate dated the Secondary
Closing Date and signed by an executive officer of the Company confirming the
accuracy of the Company's representations, warranties and covenants as of the
Secondary Closing Date and confirming the compliance by the Company with the
Milestones and the conditions precedent set forth in this Section 4.1 as of the
Secondary Closing Date;


(4)	Certificates of Incorporation. The Company shall have delivered to each
of the Purchasers a copy of a certificate evidencing the incorporation and good
standing of the Company and each Subsidiary, in such corporation's state of
incorporation issued by the Secretary of State of such state of incorporation
as of a date within ten days of the Secondary Closing Date. The Company shall
have delivered to the Purchaser a copy of its Certificate of Incorporation as
certified by the Secretary of State of the State of Delaware within ten days of
the Secondary Closing Date; and

(5)	Other Documents. The Company shall have delivered to the Purchaser such
other documents relating to the transactions contemplated by the Transaction
Documents as the Purchaser or its counsel may reasonably request.

d.	Purchaser Documents and Certificates. At the Secondary Closing, the
Purchaser shall have delivered to the Company the following in form and
substance reasonably satisfactory to the Company:

(1)	Cash Payment.	The Purchaser shall deliver, as directed by the
Company, four million, five hundred thousand dollars ($4,500,000) in United
States dollars in immediately available funds to an account or accounts
designated in writing by the Company;

(2)	Warrant. A warrant representing the MB Warrant purchased by the
Company, registered in the name of the Company;

(3)     Officer's Certificate. An Officer's Certificate dated the Secondary
Closing Date and signed by an executive officer of the Purchaser confirming the
accuracy of the Purchaser's representations, warranties and covenants as of the
Secondary Closing Date and confirming the compliance by the Purchaser with the
conditions precedent set forth in this Section 4.2 as of the Secondary Closing
Date;


                                     ARTICLE V.

                                  INDEMNIFICATION

5.1	Indemnification. In addition to all of the Company's other obligations
under this Agreement and the Transaction Documents, the Company shall defend,
protect, indemnify and hold harmless the Purchaser, its past and present
Affiliates and their successors and assigns (in accordance with the provisions
of Section 6.5 hereof), each other holder of the Warrant Shares and all of
their stockholders, officers, directors, employees and direct or indirect
investors and any of the foregoing Person's agents or other representatives
(including, without limitation, those retained in connection with the
transactions contemplated by this Agreement) (collectively, the "Indemnitees")
from and against any and all actions, causes of action, suits, claims, losses,
proceedings, costs (as incurred), penalties, fees (including legal fees and
expenses), liabilities and damages, and expenses in connection therewith
(irrespective of whether any such Indemnity is a party to the action for which
indemnification hereunder is sought), and including interest, penalties and
attorneys' fees and disbursements (the "Indemnified Liabilities"), incurred by
any Indemnitee as a result of, or arising out of, or relating to (a) any
misrepresentation or breach of any representation or warranty made by the
Company in this Agreement or in the Transaction Documents, or any other
certificate, instrument or document contemplated hereby or thereby or (b) any
breach of any covenant, agreement or obligation of the Company contained in
this Agreement or the Transaction Documents, or any other certificate,
instrument or document contemplated hereby or thereby. The indemnification

obligations of the Company under this paragraph shall be in addition to any
liability which the Company may otherwise have, shall extend upon the same
terms and conditions to any affiliate of the Purchaser and officers, directors,
agents, employees and controlling Persons (if any), as the case may be, of the
Purchaser and any such affiliate, and shall be binding upon and inure to the
benefit of any successors, assigns, heirs and personal representatives of the
Company, the Purchaser and any such affiliate and any such Person. The Company
also agrees that neither the Purchaser nor any such Affiliates, officers,
directors, agents, employees or controlling Persons shall have any liability to
the Company or any Person asserting claims on behalf of or in right of the
Company in connection with or as a result of the consummation of this Agreement
or any of the Transaction Documents except to the extent that any losses,
claims, damages, liabilities or expenses incurred by the Company result from
the gross negligence or willful misconduct of the Purchaser or entity in
connection with the transactions contemplated by this Agreement or the
Transaction Documents. To the extent that the foregoing undertaking by the
Company may be unenforceable for any reason, the Company shall make the maximum
contribution to the payment and satisfaction of each of the Indemnified
Liabilities which is permissible under applicable law.

5.2 Purchaser Indemnification. In addition to all of the Purchaser's other
obligations under this Agreement and the Transaction Documents, the Purchaser
shall defend, protect, indemnify and hold harmless the Company, its past and
present Affiliates and their successors and assigns (in accordance with the
provisions of Section 6.5 hereof), each other holder of the M Shares and all of
their stockholders, officers, directors, employees and direct or indirect
investors and any of the foregoing Person's agents or other representatives
(including, without limitation, those retained in connection with the
transactions contemplated by this Agreement) (collectively, the "Indemnitees")
from and against any and all actions, causes of action, suits, claims, losses,
proceedings, costs (as incurred), penalties, fees (including legal fees and
expenses), liabilities and damages, and expenses in connection therewith
(irrespective of whether any such Indemnity is a party to the action for which
indemnification hereunder is sought), and including interest, penalties and
attorneys' fees and disbursements (the "Indemnified Liabilities"), incurred by
any Indemnitee as a result of, or arising out of, or relating to (a) any
misrepresentation or breach of any representation or warranty made by the
Purchaser in this Agreement or in the Transaction Documents, or any other
certificate, instrument or document contemplated hereby or thereby or (b) any
breach of any covenant, agreement or obligation of the Purchaser contained in
this Agreement or the Transaction Documents, or any other certificate,
instrument or document contemplated hereby or thereby. The indemnification
obligations of the Purchaser under this paragraph shall be in addition to any
liability which the Purchaser may otherwise have, shall extend upon the same
terms and conditions to any affiliate of the Company and officers, directors,
agents, employees and controlling Persons (if any), as the case may be, of the
Company and any such affiliate, and shall be binding upon and inure to the
benefit of any successors, assigns, heirs and personal representatives of the
Purchaser, the Company and any such affiliate and any such Person. The
Purchaser also agrees that neither the Company nor any such Affiliates,
officers, directors, agents, employees or controlling Persons shall have any
liability to the Purchaser or any Person asserting claims on behalf of or in
right of the Purchaser in connection with or as a result of the consummation of
this Agreement or any of the Transaction Documents except to the extent that
any losses, claims, damages, liabilities or expenses incurred by the Purchaser
result from the gross negligence or willful misconduct of the Company or entity
in connection with the transactions contemplated by this Agreement or the
Transaction Documents. To the extent that the foregoing undertaking by the
Purchaser may be unenforceable for any reason, the Purchaser shall make the

maximum contribution to the payment and satisfaction of each of the Indemnified
Liabilities which is permissible under applicable law.

	5.3	Procedures.

a.	If a third party shall notify an indemnified party (the "Indemnified
Party") with respect to any matter that may give rise to a claim for
indemnification under the indemnity set forth above in Sections 5.1 and 5.2,
the procedure set forth below shall be followed.

(1)	Notice. The Indemnified Party shall give to the party providing
indemnification (the "Indemnifying Party") written notice of any claim, suit,
judgment or matter for which indemnity may be sought under Section 6.1 promptly
but in any event within thirty days after the Indemnified Party receives notice
thereof; provided, however, that failure by the Indemnified Party to give such
notice shall not relieve the Indemnifying Party from any liability it shall
otherwise have pursuant to this Agreement except to the extent that the
Indemnifying Party is actually prejudiced by such failure. Such notice shall
set forth in reasonable detail (i) the basis for such potential claim and (ii)
the dollar amount of such claim.

(2)	Defense of Claim. With respect to a claim by a third party against an
Indemnified Party for which indemnification may be sought under this Agreement,
the Indemnifying Party shall have the right, at its option, to be represented
by counsel of its choice and to assume the defense or otherwise control the
handling of any claim, suit, judgment or matter for which indemnify is sought,
which is set forth in the notice sent by the Indemnified Party, by notifying
the Indemnified Party in writing to such effect within fifteen days of receipt
of such notice; provided, however, that the Indemnified Party shall have the
right to employ counsel to represent it if, in the Indemnified Party's
reasonable judgment based upon the advice of counsel, it is advisable in light
of the separate interests of the Indemnified Party, to be represented by
separate counsel, and in that event the reasonable fees and expenses of such
separate counsel shall be paid by the Indemnifying Party. If the Indemnifying
Party does not give timely notice in accordance with the preceding sentence,
the Indemnifying Party shall be deemed to have given notice that it does not
wish to control the handling of such claim, suit or judgment. In the event the
Indemnifying Party elects (by notice in writing within such fifteen day period)
to assume the defense of or otherwise control the handling of any such claim,
suit, judgment or matter for which indemnity is sought, the Indemnifying Party
shall indemnify and hold harmless the Indemnified Party from and against any
and all reasonable professional fees (including attorneys' fees, accountants,
consultants and engineering fees) and investigation expenses incurred by the
Indemnifying Party prior to such election, notwithstanding the fact that the
Indemnifying Party may not have been so liable to the Indemnified Party had the
Indemnifying Party not elected to assume the defense of or to otherwise control
the handling of such claim, suit, judgment or other matter. In the event that
the Indemnifying Party does not assume the defense or otherwise control the
handling of such matter, the Indemnified Party may retain counsel, as an
indemnification expense, to defend such claim, suit, judgment or matter.

(3)	Final Authority. The parties shall cooperate in the defense of any such
claim or litigation and each shall make available all books and records which
are relevant in connection with such claim or litigation. In connection with
any claim, suit or other proceeding with respect to which the Indemnifying
Party has assumed the defense or control, the Indemnifying Party will not
consent to the entry of any judgment or enter into any settlement with respect
to any matter which does not include a provision whereby the plaintiff or
claimant in the matter releases the Indemnified Party from all liability with

respect thereto, without the written consent of the Indemnified Party. In
connection with any claim, suit or other proceeding with respect to which the
Indemnifying Party has not assumed the defense or control, the Indemnified
Party may not compromise or settle such claim without the consent of the
Indemnifying Party, which shall not be unreasonably withheld and shall be
deemed to have been given if the Indemnified Party provides the Indemnifying
Party with a written notice setting forth the material terms of such compromise
or settlement and the Indemnifying Party does not object thereto in writing
within ten days of its receipt of such notice.

                                  ARTICLE VI.

                                 MISCELLANEOUS

6.1	Entire Agreement. This Agreement, together with the Exhibits and
Schedules hereto and the Transaction Documents contain the entire understanding
of the parties with respect to the subject matter hereof and supersede all
prior agreements and understandings, oral or written, with respect to such
matters.

6.2	Notices. Any notices, consents, waivers or other communications
required or permitted to be given under the terms of this Agreement must be in
writing and will be deemed to have been delivered (i) upon receipt, when
delivered personally; (ii) upon receipt, when sent by facsimile, provided
confirmation of transmission is mechanically or electronically generated and
kept on file by the sending party (if received by 7:00 p.m. EST where such
notice is received) or the first business day following such delivery (if
received after 7:00 p.m. EST where such notice is received); or (iii) one
business day after deposit with a nationally recognized overnight delivery
service, in each case properly addressed to the party to receive the same. The
addresses and facsimile numbers for such communications shall be:

If to the Company:

SatCon Technology Corporation
161 First Street
Cambridge, MA 02142-1221
Telephone: (617)
Facsimile: (617) 576-7455
Attention: President and Chief Executive Officer

With a copy to:

Hale & Dorr LLP
60 State Street
Boston, MA 02109
Telephone: (617) 526-6468
Facsimile: (617) 526-5000
Attention: Jeffrey N. Carp, Esq.

If to Mechanical Technology Incorporated:

968 Albany-Shaker Road
Latham, New York  12110
Telephone:  (518) 785-2211
Facsimile:   (518) 785-2127
Attention:  Cynthia A. Scheuer, Chief Financial Officer



With a copy, in the case of Notice to Mechanical Technology Incorporated, to:

Catherine S. Hill, PLLC
4 Global View
Troy, New York  12180
Telephone:  (518) 285-7586
Facsimile:  (518) 285-7564
Attention:  Catherine S. Hill

Each party shall provide written notice to the other party of any change in
address or facsimile number in accordance with the provisions hereof.

6.3	Amendments; Waivers. No provision of this Agreement may be waived or
amended except in a written instrument signed, in the case of an amendment, by
both the Company and each of the Purchaser or, in the case of a waiver, by the
party against whom enforcement of any such waiver is sought. No waiver of any
default with respect to any provision, condition or requirement of this
Agreement shall be deemed to be a continuing waiver in the future or a waiver
of any other provision, condition or requirement hereof, nor shall any delay or
omission of either party to exercise any right hereunder in any manner impair
the exercise of any such right accruing to it thereafter.

6.4	Headings. The headings herein are for convenience only, do not
constitute a part of this Agreement and shall not be deemed to limit or affect
any of the provisions hereof.

6.5	Successors and Assigns. This Agreement shall be binding upon and inure
to the benefit of the parties and their successors and permitted assigns.
Neither the Company nor the Purchaser may assign this Agreement or any rights
or obligations hereunder without the prior written consent of each of the other
party hereto. This provision shall not limit either the Purchaser's right or
the Company's right to transfer securities in accordance with all of the terms
of this Agreement or the Transaction Documents.

6.6	No Third-Party Beneficiaries. This Agreement is intended for the
benefit of the parties hereto and their respective permitted successors and
assigns and is not for the benefit of, nor may any provision hereof be enforced
by, any other Person.

6.7	Governing Law. This Agreement shall be governed by and construed and
enforced in accordance with the internal laws of the State of New York without
regard to the principles of conflicts of law thereof. Each party hereby
irrevocably submits to the nonexclusive jurisdiction of the federal courts
sitting in the City of Albany, County of Albany or if diversity jurisdiction
cannot be obtained, then in the state courts sitting in the City of Albany,
County of Albany for the adjudication of any dispute hereunder or in connection
herewith or with any transaction contemplated hereby or discussed herein, and
hereby irrevocably waives, and agrees not to assert in any suit, action or
proceeding, any claim that it is not personally subject to the jurisdiction of
any such court, that such suit, action or proceeding is improper. Each party
hereby irrevocably waives personal service of process and consents to process
being served in any such suit, action or proceeding by mailing a copy thereof
to such party at the address for such notices to it under this Agreement and
agrees that such service shall constitute good and sufficient service of
process and notice thereof. Nothing contained herein shall be deemed to limit
in any way any right to serve process in any manner permitted by law. EACH
PARTY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO



REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN
CONNECTION HEREWITH OR ARISING OUT OF THIS AGREEMENT OR ANY TRANSACTION
CONTEMPLATED HEREBY.

6.8	Survival. The representations and warranties of the Company and the
Purchaser contained in Sections 2.1 and 2.2, the agreements and covenants set
forth in Section 3, and the indemnification provisions set forth in Section 5,
shall survive the Closing and any exercise of the A Warrant, the B Warrant and
the M Warrant regardless of any investigation made by or on behalf of the
Purchaser or by or on behalf of the Company, except that, in the case of
representations, warranties and indemnities such survival shall be limited to
the period of 18 months following the Closing Date on which they were made or
deemed to have been made, except for representations in 2.1(a), 2.1(b), 2.1(d),
2.1(i) and 2.1(v) which shall survive for the applicable statute of limitations
and 2.1(j) which shall survive for the period of two (2) years. This section
shall have no effect on the survival of the indemnification provisions of the
Registration Rights Agreement.

6.9	Counterparts. This Agreement may be executed in two or more
counterparts, all of which when taken together shall be considered one and the
same agreement and shall become effective when counterparts have been signed by
each party and delivered to the other party, it being understood that both
parties need not sign the same counterpart. In the event that any signature is
delivered by facsimile transmission, such signature shall create a valid and
binding obligation of the party executing (or on whose behalf such signature is
executed) the same with the same force and effect as if such facsimile
signature page were an original thereof.

6.10	Publicity. The Company and the Purchaser shall consult with each other
in issuing any press releases or otherwise making public statements with
respect to the transactions contemplated hereby and neither party shall issue
any such press release or otherwise make any such public statement without the
prior written consent of the other, which consent shall not be unreasonably
withheld or delayed, except that no prior consent shall be required if such
disclosure is required by law, in which such case the disclosing party shall
provide the other party with prior notice of such public statement. The Company
shall not publicly or otherwise disclose the names of the Purchaser without the
Purchaser's prior written consent. Subject to the Company's review and
approval, the Purchaser and its affiliated companies shall, without further
cost, have the right to use in its advertising, marketing or other similar
materials, the Company's logo and trademarks and all or parts of the Company's
press releases that focus on the Transaction forming the subject matter of this
Agreement or which make reference to the Transaction; provided, however, that
Company approval is not required with regard to formal newspaper announcements
of transactions or "tombstones." The Purchaser understands that this grant by
the Company only waives objections that the Company might have to the use of
such materials by the Purchaser and in no way constitutes a representation by
the Company that references in such materials to the activities of
third-parties have been cleared or constitute a fair use.

6.11	Severability. In case any one or more of the provisions of this
Agreement shall be invalid or unenforceable in any respect, the validity and
enforceability of the remaining terms and provisions of this Agreement shall
not in any way be affected or impaired thereby and the parties will attempt to
agree upon a valid and enforceable provision which shall be a reasonable
substitute therefor, and upon so agreeing, shall incorporate such substitute
provision in this Agreement.



6.12	Remedies. In addition to being entitled to exercise all rights provided
herein or granted by law, including recovery of damages, the Purchaser will be
entitled to specific performance of the obligations of the Company under this
Agreement or the Transaction Documents without the showing of economic loss and
without any bond or other security being required. The Company and the
Purchaser (severally and not jointly) agree that monetary damages would not be
adequate compensation for any loss incurred by reason of any breach of its
obligations described in the foregoing sentence and hereby agree to waive in
any action for specific performance of any such obligation the defense that a
remedy at law would be adequate.

6.13	Further Assurances. Each party shall do and perform, or cause to be
done and performed, all such further acts and things, and shall execute and
deliver all such other agreements, certificates, instruments and documents, as
the other party may reasonably request in order to carry out the intent and
accomplish the purposes of this Agreement and the consummation of the
transactions contemplated hereby.

6.14	Fees and Expenses. Except as set forth in the Registration Rights
Agreement, each party shall pay the fees and expenses of its advisers, counsel,
accountants and other experts, if any, and all other expenses incurred by such
party incident to the negotiation, preparation, execution, delivery and
performance of this Agreement. The Company shall pay all stamp and other taxes
and duties levied in connection with the issuance of the Warrant Shares
pursuant hereto.

                       [SIGNATURE PAGE TO FOLLOW]

IN WITNESS WHEREOF, the parties hereto have caused this Securities Purchase
Agreement to be duly executed by their respective authorized persons as of the
date first indicated above.

                                 SATCON TECHNOLOGY CORPORATION



                                 By:/s/Daniel B. Eisenhaure
                                 Name:Daniel B. Eisenhaure
                                 Title:President and Chief Executive Officer

                                 MECHANICAL TECHNOLOGY
                                 INCORPORATED



                                 By:/s/Cynthia A. Scheuer
                                 Name:Cynthia A. Scheuer
                                 Title:Vice President/Chief Financial Officer


                                 EXHIBIT A

                          Form of SatCon Warrant


                                 EXHIBIT B

                           Form of MTI Warrant


                                 EXHIBIT C

                Form of SatCon Registration Rights Agreement

                                 EXHIBIT D

                  Form of MTI Registration Rights Agreement

                                 EXHIBIT E

                           Form of Legal Opinion