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Exhibit 10.7    
    


THE 8% SENIOR CONVERTIBLE DEBENTURE DUE 2011 REPRESENTED BY THIS CERTIFICATE AND THE SECURITIES INTO WHICH IT MAY BE CONVERTED HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT
OF 1933, AS AMENDED, OR ANY STATE SECURITIES LAWS, AND NEITHER SUCH SECURITIES NOR ANY INTEREST THEREIN MAY BE OFFERED FOR SALE, SOLD, PLEDGED, ASSIGNED OR OTHERWISE TRANSFERRED UNLESS
(1) A REGISTRATION STATEMENT WITH RESPECT THERETO IS EFFECTIVE UNDER THE ACT AND ANY APPLICABLE SECURITIES LAWS OR (2) THE COMPANY RECEIVES AN OPINION OF COUNSEL TO THE HOLDERS OF SUCH
SECURITIES, WHICH COUNSEL AND OPINION ARE REASONABLY SATISFACTORY TO THE COMPANY, THAT SUCH SECURITIES MAY BE OFFERED, SOLD, PLEDGED, ASSIGNED OR TRANSFERRED IN THE MANNER CONTEMPLATED WITHOUT AN
EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT OR APPLICABLE STATE SECURITIES LAWS.


 
 

American DG Energy Inc.
  
    Form of
  8% Senior Convertible Debenture Due 2011    
    



	No.             	 	$            
 





        This
Debenture (the "Debenture") is one of a duly authorized issue of Debentures of American DG Energy Inc., a
corporation duly incorporated under the laws of the State of Delaware, and having its principal address at 45 First Avenue, Waltham, Massachusetts 02451
(the "Company"), designated as its 8% Convertible Debentures due 2011, in an aggregate principal amount of up to $3,550,000, which amount may be
increased at the discretion of the Company (the "Debentures"). 


        FOR
VALUE RECEIVED, the Company promises to pay to the order
of                                    , or its registered assigns
(the "Holder"), the
principal sum of                                      Thousand
United States Dollars
(U.S. $                                    )
(the "Principal Amount") on April 1, 2011, subject to earlier payment as otherwise provided herein
(the "Maturity Date"), and to pay interest on the Principal Amount outstanding under this Debenture
(the "Outstanding Principal Amount"), at the rate of 8% per annum, due and payable quarterly in arrears on the 1st day of
July, October, January and April of each year, commencing on July 1, 2006 (each an "Interest Payment Date") and on the Maturity Date. Interest
shall be calculated based on a 360-day year. Interest shall accrue from the most recent date to which interest has been paid or, if no interest has been paid, from the date of original
issuance and shall continue until the following Interest Payment Date. Except as otherwise provided herein, the interest so payable will be paid to the person in whose name this Debenture is
registered on the records of the Company regarding registration and transfers of the Debentures (the "Debenture Register") at the close of
business on the record date for interest payable on such Interest Payment Date. The record date for any interest payment is the close of business on the date fifteen days prior to the Interest Payment
Date, unless such date shall not be a business day, in which case on the next preceding business day. The Company shall be entitled to withhold from all payments of interest on this Debenture any
amounts required to be withheld under the applicable provisions of the United States income tax laws as evidenced by an opinion of counsel of the Company. 


        The
Company will pay, in cash, the Outstanding Principal Amount and all accrued and unpaid interest (the "Outstanding Amount") due
upon this Debenture on the Maturity Date. 


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        This
Debenture is subject to the following additional provisions: 


        1.    Exchange.    The Debentures are exchangeable for an equal aggregate principal amount of Debentures of different
denominations as requested by the Holder surrendering the same. No fees will be charged for such exchange. Notwithstanding the foregoing, the Company shall have no obligation to issue new Debentures
unless and until requested by the Holders thereof. 


        2.    Transfers.    This Debenture has been issued subject to investment representations of the original purchaser
hereof and may be transferred or exchanged only (a) in compliance with the Securities Act of 1933, as amended (the "Act"), and applicable
state securities laws, and (b) in accordance with applicable provisions hereof. Prior to due presentment for transfer of this Debenture, the Company may treat the person in whose name this
Debenture is duly registered on the Company's Debenture Register as the owner hereof for the purpose of receiving payment as herein provided and all other purposes, whether or not this Debenture is
then overdue, and the Company shall not be affected by notice to the contrary. 


        3.    Definitions.    For purposes hereof the following definitions shall apply: 


        "2006 Private Placement" The Company's private placement of up to $3,550,000 of Debentures. 



        "Common Stock" shall mean the Common Stock, $.001 par value per share, of the Company. 


        "Company" shall have the meaning set forth in the first introductory paragraph. 


        "Conversion Deficiency" shall have the meaning set forth in Paragraph 9(b). 


        "Conversion Notice" shall have the meaning set forth in Paragraph 5(c). 



        "Conversion Price" shall mean $0.84, subject to adjustment from time to time as set forth in Paragraph 7 hereof. 


        "Debenture" shall have the meaning set forth in the first introductory paragraph. 


        "Debenture Register" shall have the meaning set forth in the second introductory paragraph. 


        "Debentures" shall have the meaning set forth in the first introductory paragraph. 



        "Dilutive Transaction" shall have the meaning set forth in Paragraph 7(d). 


        "Events of Default" shall have the meaning set forth in Paragraph 14. 


        "Exchange Act" shall mean the Securities Exchange Act of 1934, as amended. 


        "Excluded Shares" shall have the meaning set forth in Paragraph 7(d). 



        "Final Closing Date" shall mean the final closing date of the 2006 Private Placement (such date being April 1, 2006). 


        "Holder" shall have the meaning set forth in the second introductory paragraph. 


        "Holder Conversion Date" shall have the meaning set forth in Paragraph 5(c). 


        "Interest Payment Date" shall have the meaning set forth in the second introductory paragraph. 



        "Investor Rights Agreement" shall have the meaning set forth in the Subscription Agreement. 


        "Maturity Date" shall have the meaning set forth in the second introductory paragraph. 


        "Outstanding Amount" shall have the meaning set forth in the third introductory paragraph. 


        "Outstanding Options" shall have the meaning set forth in Paragraph 7(d). 


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        "Outstanding Principal Amount" shall have the meaning set forth in the second introductory paragraph. 


        "Principal Amount" shall have the meaning set forth in the second introductory paragraph. 



        "Qualified Offering" shall mean the Company's first firm commitment underwritten public offering of its Common Stock registered under the
Securities Act. 


        "Qualified Registration" shall mean the registration of the Company's securities on Form 10 pursuant to Section 12(b)
or 12(g) of the Exchange Act. 


        "Redemption Date" shall have the meaning set forth in Paragraph 6(a)(ii). 



        "Redemption Debentures" shall have the meaning set forth in Paragraph 6(c). 


        "Redemption Price" shall have the meaning set forth in Paragraph 6(b). 


        "Redemption Notice" shall have the meaning set forth in Paragraph 6(a). 


        "Securities Act" means the Securities Act of 1933, as amended. 



        "Subscription Agreement" shall mean the agreement entered into by and between the Company and the Holder for the purchase of
the Debenture. 


        "Underlying Shares" shall mean the shares of Common Stock into which this Debenture is convertible. 


        In
addition, other terms defined in the Subscription Agreement and not otherwise defined herein shall have the same meanings herein as are set forth for such terms in the Subscription
Agreement. 


        4.    Maturity.    On the Maturity Date, the Outstanding Amount of this Debenture shall be payable in cash. 


        5.    Conversion.    This Debenture is subject to conversion as follows: 



        (a)    Holder's Right to Convert.    The Outstanding Amount of this Debenture shall be convertible at any time, in
whole or in part, at the option of the Holder hereof, into fully paid, validly issued and nonassessable shares of Common Stock. 


        (b)    Conversion Price for Converted Shares.    Subject to Paragraph 5(a), the Outstanding Amount of this
Debenture that is converted into shares of Common Stock shall be convertible into the number of shares of Common Stock calculated by dividing the Outstanding Amount of this Debenture submitted for
conversion by the Conversion Price. 


        (c)    (i)    Mechanics of Conversion.    In order to convert this Debenture (in whole or in part)
into shares of Common Stock, the Holder shall surrender this Debenture, by either overnight courier or two-day courier, to the Company, and shall give written notice in the form of  Exhibit 2
hereto (the "Conversion Notice") by facsimile (with the original of such
notice forwarded with the foregoing courier) to the Company that the Holder elects to convert all or the portion of the Outstanding Amount of this Debenture specified therein, which such notice and
election shall be irrevocable by the Holder; provided, however, that the Company shall not be obligated
to issue certificates evidencing the shares of Common Stock issuable upon such conversion unless this Debenture with evidence of the principal amount hereof to be converted is delivered to the Company
as provided above, or the Holder notifies the Company that this Debenture has been lost, stolen or destroyed and promptly executes an agreement reasonably satisfactory to the Company to indemnify the
Company from any loss which may be incurred by it in connection with this Debenture. The date on which a Conversion Notice is given (the "Holder Conversion
Date") shall be deemed to be the date the Company received by facsimile the Conversion Notice, as 



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evidenced
by a printed confirmation of receipt received by the Holder or confirmed by telephone conference between the Holder and the Company. 



         (ii)  Issuance of Certificates.    In the case of any Conversion Notice given by the Holder to the Company, the
Company shall issue and deliver as promptly as practicable and in no event later than five (5) business days after delivery to the Company of the Debenture, or after receipt of such agreement
and indemnification, to such Holder or to its designee, a certificate or certificates for the number of shares of Common Stock to which the Holder shall be entitled, together with a Debenture for the
Outstanding Amount not submitted for conversion, if any. The person or persons entitled to receive the shares of Common Stock issuable upon conversion shall be treated for all purposes as the record
holder or holders of such shares of Common Stock on the Holder Conversion Date. 





        6.    Redemption.    



        (a)    Company Option To Redeem.    Any portion of this Debenture may be redeemed at the Company's option expressed by
a written notice (a "Redemption Notice") to the Holder; provided that: 



          (i)  a
registration statement under the Securities Act and a registration with a U.S. national securities exchange are then in effect covering the Underlying Shares; 


         (ii)  the
average closing bid price per share of Common Stock, as reported on such national securities exchange, shall have been not less than $1.50 per share for a minimum
of twenty (20) out of thirty (30) trading days prior to the date of the Redemption Notice; 



        (iii)  the
Redemption Notice delivered by the Company shall be received by the Holder at least ten (10) trading days (but not more than thirty
(30) trading days) prior to the date of redemption (the "Redemption Date"); and 


        (iv)  no
Conversion Deficiency, as defined in Paragraph 9(b), shall have occurred prior to the Redemption Date. 




        (b)    Redemption Price.    The redemption price for the portion of this Debenture being redeemed shall equal one
hundred percent (100%) of the Outstanding Principal Amount of this Debenture being so redeemed (the "Redemption Price"), along with any accrued
but unpaid interest. The Redemption Price shall be payable in cash in United States Dollars. 


        (c)    Mechanics of Redemption.    If less than all of the Outstanding Amount of Debentures are to be redeemed at any
time, the selection of Debentures for redemption will be made by the Company on a pro rata basis. In the event the Company shall be required or elects to redeem any part or all of the
Outstanding Amount of the Debentures, the Company shall send by either overnight courier or two-day courier (with a copy sent by facsimile) confirmation of such determination or obligation
to the record Holders of the Debentures being redeemed (the "Redemption Debentures"), which confirmation shall be included in the Redemption
Notice. Such confirmation shall specify the Redemption Date, which shall be at least ten (10) business days (but not more than thirty (30) business days) after receipt by the
Holder of the Redemption Notice. On the Redemption Date, the Redemption Debentures shall be redeemed automatically without any further action by the Holders of such Debentures and whether or not the
Debentures are surrendered to the Company; provided, that the Company shall be obligated to pay the cash consideration due to a Holder of such
Debentures upon redemption only when such Debentures are either delivered to the principal office of the Company or the Holder notifies the Company that such Debentures have been lost, stolen or
destroyed and executes an agreement reasonably satisfactory to the Company to indemnify the Company from any loss which may be incurred by it in connection with such Debenture. Thereupon, there shall
be promptly issued and delivered to such Holder, within seven (7) business days after the Redemption Date and delivery to the 



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Company
of such Debentures, or after receipt of such agreement and indemnification, at the address of such Holder on the books of the Company, payment in immediately available funds to the name as
shown on the books of the Company in the amount of the Redemption Price as calculated as set forth in Paragraph 6(b). 




        Notwithstanding
anything to the contrary contained herein, the Holders' rights of conversion pursuant to Paragraph 5 hereof shall not be limited in any manner by the Company's
rights of redemption pursuant to this Paragraph 6. 



        7.    Adjustments to the Conversion Price.    


        (a)    Adjustment for Subdivisions, Combinations, etc.    If the Company shall subdivide its outstanding Common Stock
by split-up, spin-off, or otherwise, or combine its outstanding Common Stock, then the number of shares issuable upon conversion of this Debenture and the Conversion Price in
effect as of the date of such subdivision, split-up, spin-off, or combination shall be proportionally adjusted to give effect thereto. 


        (b)    Adjustment for Dividends and Distributions.    In the event the Company at any time or from time to time after
the Final Closing Date makes, or fixes a record date for the determination of holders of Common Stock entitled to receive, a dividend or other distribution payable in Common Stock (or rights to
acquire Common Stock), then and in each such event, provision shall be made so that the Holders of Debentures shall receive upon conversion thereof pursuant to Paragraph 5 hereof, in addition
to the number of shares of Common Stock receivable thereupon, the amount of such other securities of the Company to which a Holder on the relevant record or payment date, as applicable, of the number
of
shares of Common Stock so receivable upon conversion would have been entitled, plus any dividends or other distributions which would have been received with respect to such securities, had such Holder
thereafter, during the period from the date of such event to and including the Holder Conversion Date retained such securities, subject to all other adjustments called for during such period under
this Paragraph 7 with respect to the rights of the Holders of the Debentures. For purposes of this Paragraph 7(b), the number of shares of Common Stock so receivable upon conversion
shall be deemed to be that number which the Holder would have received upon conversion of the entire Outstanding Amount hereof if the Holder Conversion Date had been the day the Company set as the
record date for such dividend or distribution. 


        (c)    Adjustment for Merger, Reorganization, etc.    In the event that at any time or from time to time after the
Final Closing Date, the Common Stock issuable upon conversion of the Debentures is changed into the same or a different number of shares of any class or classes of stock, whether in connection with a
merger or consolidation, by recapitalization, reclassification, reorganization or otherwise (other than a subdivision, combination of shares or stock dividend provided for elsewhere in this
Paragraph 7), then and in each such event each Holder of Debentures shall have the right, for a period of thirty (30) days following receipt of the Company's notice of such
adjustment, to convert such Debentures into the kind of securities receivable by a holder of Common Stock upon such merger, recapitalization, reclassification or other change, all subject to further
adjustment as provided herein. 


        (d)        In the event that at any time or from time to time after the Final Closing Date but prior to the closing
date of the Company's Qualified Offering or Qualified Registration, whichever is earlier, the Company shall at any time or from time to time issue, sell or exchange any shares of Common Stock other
than Excluded Shares (as defined below) for a consideration per share less than the Conversion Price (any such issuance, sale or exchange is hereafter referred to as a
"Dilutive Transaction"), then, and thereafter successively upon each such Dilutive Transaction, the then current Conversion Price shall be reduced, as
of the opening of business on the date of such 



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issue
or sale, to a price determined by multiplying the then current Conversion Price in effect immediately prior to such Dilutive Transaction by a fraction equal to: 



        (A)  the
numerator of which shall be (X) the number of shares of Common Stock of all classes outstanding immediately prior to the Dilutive Transaction (excluding
treasury shares but including all shares of Common Stock issuable upon conversion or exercise of any outstanding options, warrants, debentures, rights or other convertible securities) plus
(Y) the number of shares of Common Stock which the net aggregate consideration received by the Company for the total number of such additional shares of Common Stock so issued in the Dilutive
Transaction would purchase at the Conversion Price (prior to such adjustment); and 


        (B)  the
denominator of which shall be (X) the number of shares of Common Stock of all classes outstanding immediately prior to the Dilutive Transaction (excluding
treasury shares but including all shares of Common Stock issuable upon conversion or exercise of any outstanding options, warrants,
debentures, rights or other convertible securities), plus (Y) the number of such additional shares of Common Stock so issued in the Dilutive Transaction. 




        For
purposes of this Paragraph 7(d), the term "Excluded Shares" shall mean (i) up to 4,000,000 shares of Common Stock (as appropriately adjusted for stock
splits, stock dividends, recapitalizations and the like) issued (pursuant to the exercise of options or otherwise) to employees, officers or directors of, or consultants and advisors to, the Company
or any Subsidiary pursuant to employee stock purchase or stock option plans or other arrangements that are approved by the Company's Board of Directors, provided, however, that such amount shall be
increased to reflect any shares of Common Stock (x) not issued pursuant to options or otherwise outstanding as of the Final Closing Date ("Outstanding Options") as a result of the termination
of such Outstanding Options or (y) reacquired by the Company from employees, directors, consultants or advisors pursuant to agreements which permit the Company to repurchase such shares at cost
upon termination of services to the Company, (ii) any shares of Common Stock which may be issued by the Company upon conversion of outstanding warrants, (iv) any shares of Common Stock
which may be issued by the Company upon conversion of the Debentures, (iii) any shares of Common Stock which may be issued pursuant to existing agreements with the Company's stockholders,
(iv) any shares of Common Stock issued for consideration other than cash in connection with a merger, consolidation, acquisition, or similar business combination approved by the Board of
Directors, (vii) any shares of Common Stock issued or issuable by reason of a stock split, stock dividend, reclassification or other distribution of shares of Common Stock, and
(viii) the sale or other issuance by the Company of shares of Common Stock or securities convertible into shares of Common Stock for an aggregate consideration of less than $1,000,000. 


        (e)    Certificate as to Adjustments.    Upon each occurrence of an adjustment pursuant to this Paragraph 7,
the Company at its expense shall furnish to each Holder a certificate setting forth (i) in reasonable detail the facts upon which such adjustment is based, and (ii) the number of shares
of Common Stock and the amount of other property or securities that after giving effect thereto would be received by the Holder upon conversion of this Debenture. 


        (f)    Minimum Adjustments.    No adjustment of the Conversion Price shall be made unless such adjustment would
require an increase or decrease of at least $.10 in such price; provided that any adjustments which by reason of this Paragraph 7(f) are not required to be made shall be carried forward and
shall be made at the time of and together with the next subsequent adjustment which, together with any adjustment(s) so carried forward, shall require an increase or decrease of at least $.10 in the
Conversion Price then in effect hereunder. 


        (g)    Board Discretion.    Any determination as to whether an adjustment in the Conversion Price in effect hereunder
is required pursuant to Paragraph 7, or as to the amount of any such 



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adjustment,
if required, shall be binding upon the holders of this Debenture and the Company if made in good faith by the Board of Directors of the Company. 




        8.    Fractional Shares.    No fractional shares of Common Stock or scrip representing fractional shares of Common
Stock shall be issuable hereunder. The number of shares of Common Stock that are issuable upon any conversion shall be rounded up or down to the nearest whole share. 



        9.    Reservation of Stock Issuable Upon Conversion.    



        (a)    Reservation Requirement.    The Company has reserved and the Company shall continue to reserve and keep
available at all times, free of preemptive rights, shares of Common Stock for the purpose of enabling the Company to satisfy any obligation to issue shares of its Common Stock upon conversion of the
Debentures. In the event that the number of shares so reserved (either in the aggregate or as to any Debenture) shall be insufficient for issuance upon conversion of the Debentures, then, upon receipt
by the Company of notice from any Holder, the Company shall use its best efforts and all due diligence to increase the number of shares so reserved to cure all such deficiencies (either in the
aggregate or as to any Debenture) and, if necessary, to obtain the approval by its shareholders therefor, including the authorization of such additional number of shares of Common Stock as may be
required to issue such shares in excess of the number so reserved (either in the aggregate or as to any Debenture) or in excess of such limitation, as the case may be. 


        (b)    Conversion Deficiency.    If, upon receipt of a Conversion Notice, the Company does not have a sufficient
number of shares of Common Stock available to satisfy the Company's obligations to issue Common Stock upon conversion of all or any of the Debentures to be so converted
(a "Conversion Deficiency"), any Holder of the Debentures shall have the right to demand from the Company immediate redemption of any portion of
the Debentures with respect to which the Company does not have a sufficient number of shares available to satisfy such conversion obligations, in cash at the Redemption Price pursuant to
Paragraph 6. Within five business days of the occurrence of any Conversion Deficiency, the Company shall notify each Holder in writing of such occurrence. The Holder shall then have five
business days from the receipt of such notice to demand redemption pursuant to this Paragraph 9(b). 




        Within
five (5) business days of the receipt of written demand for redemption from any Holder pursuant to this Paragraph 9(b), the Company shall notify each such Holder
whether the Company has adequate liquidity to redeem such portion of the Debentures as required by the foregoing paragraph (and, if requested by such Holder, will provide reasonable written support
for its position with respect thereto within ten business days of such request) and whether such redemption is prohibited under the terms of any financing or other agreements or applicable law. 


        In
the event that the Company notifies the Holder in writing that the Company has adequate liquidity and is not otherwise restricted from redeeming such portion of this Debenture, then
the Company shall pay, in cash, to such Holder within ten business days after which the Company received the Holder's demand for redemption and on the last day of each 30-day period for
which a Conversion Deficiency is continuing, an additional amount equal to one percent (1%) of the amount of such portion of the Debentures which such Holder does not require the Company to redeem,
for a maximum of three percent (3%) for such Conversion Deficiency. 


        In
the event that the Company notifies the Holder in writing that the Company does not have adequate liquidity to redeem such portion of the Debentures or that the Company is otherwise
restricted from redeeming such portion of this Debenture, the Company shall pay, in cash, to such Holder within ten (10) business days after which the Company received the Holder's demand for
redemption and on the last day of each 30-day period for which a Conversion Deficiency is continuing (or until the Company establishes to the reasonable satisfaction of the Holder
that the Company has adequate liquidity to redeem and is not otherwise prohibited from redeeming such Holder's 


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Debentures,
in which case the provisions of the foregoing paragraph shall govern), two percent (2%) of the amount of such portion of the Debentures which can not be redeemed. 



        10.    Other Covenants of the Company.    



        (a)   The
Company shall not intentionally take any action, which would be reasonably likely to impair the contractual rights and privileges of the Debentures set forth herein
or of the Holders thereof. 


        (b)   The
Company shall not redeem (other than pursuant to Paragraph 6, 9 and 11), retire, purchase or otherwise acquire, directly or indirectly, Debentures held
by any Holder unless the Company shall have offered to redeem, retire, purchase or otherwise acquire, as the case may be, the same proportion of the aggregate principal amount of Debentures held by
each other Holder of Debentures at the time outstanding upon the same terms and conditions and such offer shall remain open for a period of at least thirty (30) business days. 


        (c)   The
Company shall not transfer any of its assets or property to any of its direct or indirect subsidiaries or affiliates unless such transfer is being made in good faith
for a proper business purpose, as reasonably determined by the Company's Board of Directors. 




        11.    Obligations Absolute.    No provision of this Debenture, other than conversion as provided herein, shall alter
or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of, and interest on, this Debenture at the time, place and rate, and in the manner, herein
prescribed. 


        12.    Waivers of Demand, Etc.    The Company hereby expressly waives demand and presentment for payment, notice of
nonpayment, protest, notice of protest, notice of dishonor, notice of intent to accelerate, prior notice of bringing of suit and diligence in taking any action to collect amounts called for hereunder
and will be directly and primarily liable for the payments of all sums owing and to be owing hereon, regardless of and without any notice (except as required by law), diligence, act or omission as or
with respect to the collection of any amount called for hereunder. 



        13.    Replacement Debentures.    In the event that the Holder notifies the Company that its Debenture has been lost,
stolen or destroyed, a replacement Debenture identical in all respects to the original Debenture (except for registration number and Outstanding Amount, if different than that shown on the original
Debenture) shall be issued to the Holder, provided that the Holder executes and delivers to the Company an agreement reasonably satisfactory to the Company to indemnify the Company from any loss
incurred by it in connection with the Debenture and provided that the Company is provided a form of Debenture for such replacement purposes. 



        14.    Defaults.    If one or more of the following described "Events of
Default" shall occur: 



	(a)
	Any
of the representations or warranties made by the Company in this Debenture, the Subscription Agreement or the Investor Rights Agreement, or in any certificate or financial
statements of the Company furnished by or on behalf of the Company in connection with the execution and delivery of this Debenture, the Subscription Agreement or the Investor Rights Agreement shall be
false or (when taken together with other information furnished by or on behalf of the Company) misleading in any material respect at the time made; or



	(b)
	The
Company shall fail to perform or observe any material covenant or agreement in this Debenture, the Subscription Agreement or the Investor Rights Agreement, or any other covenant,
term, provision, condition, agreement or obligation of the Company under this Debenture, and such failure shall continue uncured for a period of fifteen (15) business days after notice from the
Holder of such failure; or



	(c)
	The
Company shall fail to make payments of principal or interest when due, or the Company hall fail to issue shares of Common Stock upon conversion of this Debenture (other than in 



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accordance
with Paragraph 9(b)) when due, and any such failure shall continue uncured for a period of five (5) days after the due date; or 



	(d)
	The
Company shall (1) admit in writing its inability to pay its debts generally as they mature; (2) make a general assignment for the benefit of creditors or commence
proceedings for its dissolution; or (3) apply for or consent to the appointment of a trustee, liquidator or receiver for it or for a substantial part of its property or business; or



	(e)
	A
trustee, liquidator or receiver shall be appointed for the Company or for a substantial part of its property or business without its consent and shall not be discharged within sixty
(60) days after such appointment; or



	(f)
	Any
governmental agency or any court of competent jurisdiction shall assume custody or control of the whole or any substantial portion of the properties or assets of the Company and
shall not be dismissed within sixty (60) days thereafter; or



	(g)
	Bankruptcy,
reorganization, insolvency or liquidation proceedings or other proceedings, or relief under any bankruptcy law or any law for the relief of debt, shall be instituted by or
against the Company and, if instituted against the Company, shall not be dismissed within sixty (60) days after such institution, or the Company shall by any action or answer approve of,
consent to, or acquiesce in any such proceedings or admit to any material allegations of, or default in answering a petition filed in, any such proceeding; 




then,
or at any time thereafter prior to the date on which all continuing Events of Default have been cured, and in each and every such case, unless such Event of Default shall have been waived in
writing by the Holder (which waiver shall not be deemed to be a waiver of any subsequent default), at the option of the Holder and in the Holder's sole discretion, the Holder may, by notice to the
Company declare this Debenture immediately due and payable, and the Holder may immediately, and without expiration of any period of grace, enforce any and all of the Holder's rights and remedies
provided herein or any other rights or remedies afforded by law. In such event, the Debenture shall be redeemed at a redemption price per Debenture equal to the Redemption Price provided in
Paragraph 6(b). 


        15.    Savings Clause.    In case any provision of this Debenture is held by a court of competent jurisdiction to be
excessive in scope or otherwise invalid or unenforceable, such provision shall be adjusted rather than voided, if possible, so that it is enforceable to the maximum extent possible, and the validity
and enforceability of the remaining provisions of this Debenture will not in any way be affected or impaired thereby. 


        16.    Entire Agreement.    This Debenture and the agreements referred to in this Debenture constitute the full and
entire understanding and agreement between the Company and the Holder with respect to the subject hereof. Neither this Debenture nor any term hereof may be amended, waived, discharged or terminated
other than by a written instrument signed by the Company and a majority of the Outstanding Principal Amount of the Debentures. 



        17.    Assignment, Etc.    Subject to any applicable law and the requirements set forth in the legend set forth
hereon, any Holder may, without notice, transfer or assign this Debenture. The Company agrees that, subject to compliance with the applicable law, after receipt by the Company of written notice of
assignment from the Holder or from the Holder's assignee, all principal, interest, and other amounts which are then due and thereafter become due under this Debenture shall be paid to such assignee at
the place of payment designated in such notice. This Debenture shall be binding upon the Company and its successors and shall inure to the benefit of the Holder and its successors and assigns. 



        18.    No Waiver.    No failure on the part of the Holder to exercise, and no delay in exercising any right, remedy or
power hereunder shall operate as a waiver thereof, nor shall any single or partial 


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exercise
by the Holder of any right, remedy or power hereunder preclude any other or future exercise of any other right, remedy or power. Each and every right, remedy or power hereby granted to the
Holder or allowed it by law or other agreement shall be cumulative and not exclusive of any other, and may be exercised by the Holder from time to time. 



        19.    Miscellaneous.    Unless otherwise provided herein, any notice or other communication to a party hereunder
shall be deemed to have been duly given if personally delivered or sent by registered or certified mail, return receipt requested, postage prepaid with a copy in each case sent on the same day to the
party by facsimile, Federal Express or other overnight delivery service to said party at its address set forth herein or such other address as either may designate for itself in such notice to the
other and communications shall be deemed to have been received when delivered personally or, if sent by mail, when actually received by the party to whom it is addressed. Copies of all notices to the
Company shall be sent to AmericanDG Energy Inc., 45 First Avenue, Waltham, Massachusetts 02451, attention: President, and to William O. Flannery, Esq., Corporate Counsel,
722 Grove Street, Framingham, Massachusetts, 01701, Facsimile No. (508) 877-8211. Whenever the sense of this Debenture requires, words in the singular shall be deemed to
include the plural and words in the plural shall be deemed to include the singular. Paragraph headings are for convenience only and shall not affect the meaning of this document. 


        20.    Choice of Law and Venue: Waiver of Jury Trial.    THIS DEBENTURE SHALL BE CONSTRUED UNDER THE LAWS OF THE
COMMONMWEALTH OF MASSACHUSETTS, WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAW OR CHOICE OF LAW THEREOF. Each of the Company and the Holder hereby (i) irrevocably submits to the exclusive
jurisdiction of the federal or state courts located in the Commonwealth of Massachusetts for the purposes of any suit, action or proceeding arising out of or relating to this Debenture and
(ii) waives, and agrees not to assert in any such suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of such court, that the suit, action or proceeding
is brought in an inconvenient forum or that the venue of the suit, action or proceeding is improper. Each of the Company and the Holder consents to process being served in any such suit, action or
proceeding by mailing a copy thereof to the Company or to the Holder, as the case may be, at the address in effect for notices to it under this Debenture and agrees that such service shall constitute
good and sufficient service of process and notice thereof. Nothing in this paragraph shall affect or limit any right to serve process in any other manner permitted by law. 


        [SIGNATURE
PAGE FOLLOWS] 


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        IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed by an officer thereunto duly authorized. 



	 	 	Dated:
                                    
	
 	
 	
American DG Energy Inc.
	
 	
 	

By:	

 Name: Anthony S. Loumidis

Title: Chief Financial Officer






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EXHIBIT 1    
    


CONVERSION NOTICE

FOR

8% CONVERTIBLE DEBENTURE DUE 2011  


        The undersigned, as Holder of the 8% Convertible Debenture due 2011 of AmericanDG Energy Inc. ("Company"),
No.            , in the Outstanding
Principal Amount of U.S.$                        (the "Debenture"), hereby irrevocably elects to convert
U.S.$                                    of the Outstanding Principal
Amount of the Debenture and
U.S.$                                    of interest accrued but
unpaid under the Debenture, into shares of Common Stock, par value $.001 per share (the "Common Stock"), of Company according to the conditions of
the Debenture, as of the date written below. The undersigned hereby requests that share certificates for the Common Stock to be issued to the undersigned pursuant to this Conversion Notice be issued
in the name of, and delivered to, the undersigned or its designee as indicated below. If shares are to be issued in the name of a person other than the undersigned, the undersigned will pay all
transfer taxes payable with respect thereto. No fee will be charged to the Holder for any conversion, except for transfer taxes, if any. 



	Conversion Information:	 	NAME OF HOLDER:	 	 
	 	 	 	 	






	 	 	By:	 	 
	 	 	 	 	






	 	 	Name:





	 	 	Title:





	 	 	Print Address of Holder:
	

 	
 	


	

 	
 	







	 	 	Issue Common Stock to:	 	 
	 	 	 	 	






	 	 	at:	 	 
	 	 	 	 	






	

 	
 	


	

 	
 	

 Date of Conversion













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Exhibit 10.7


American DG Energy Inc. Form of 8% Senior Convertible Debenture Due 2011

EXHIBIT 1