Document:

Exhibit 4.2  

THIS
WARRANT HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "1933 ACT'), OR ANY APPLICABLE STATE SECURITIES LAWS, AND MAY NOT BE SOLD OR TRANSFERRED UNLESS SUCH SALE OR
TRANSFER IS IN ACCORDANCE WITH THE REGISTRATION REQUIREMENTS OF SUCH ACT AND APPLICABLE LAWS OR SOME OTHER EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF SUCH ACT AND APPLICABLE LAWS IS AVAILABLE
WITH RESPECT THERETO. 

COMMON
STOCK PURCHASE WARRANT 

Warrant
No.    1                        Number of Shares: Up to 23,750 

ENERNOC, INC.  

Effective
as of June 7, 2004 

Void
after June 7, 2011 

        1.     Issuance. This Common Stock Purchase Warrant (the "Warrant") is issued to LIGHTHOUSE CAPITAL
PARTNERS IV, L.P. by ENERNOC, INC., a Delaware corporation (hereinafter with its successors called the
"Company"). 

        2.     Purchase Price; Number of Shares.

        (a)   The
registered holder of this Warrant (the "Holder"), commencing on the date hereof, is entitled upon surrender of this
Warrant with the subscription form annexed hereto duly executed, at the principal office of the Company, to purchase from the Company, at a price per share of $0.475 (the "Purchase Price"), 11,875
fully paid and nonassessable shares of the Company's Common Stock (the "Exercise Quantity"), $0.001 par value (the "Common
Stock"). 

        (b)   The
Exercise Quantity shall automatically increase by an additional 11,875 shares of Common Stock if the aggregate amount of the Aggregate Advances under the Loan
Agreement exceed $1,250,000. 

        In
addition to other terms which may be defined herein, the following terms, as used in this Warrant, shall have the following meanings: 

        (i)    "Aggregate Advances" means the aggregate dollar amount of all Advances made under the Loan Agreement, whether such
Advances are outstanding or prepaid. 

        (ii)   "Loan Agreement" means that certain Loan and Security Agreement No. 4021 dated June 6, 2004 between the
Company and Lighthouse Capital Partners V, L.P. 

        Any
term not defined herein shall have the meaning as set forth in the Loan Agreement. 

        Until
such time as this Warrant is exercised in full or expires, the Purchase Price and the securities issuable upon exercise of this Warrant are subject to adjustment as hereinafter
provided. The person or persons in whose name or names any certificate representing shares of Common Stock is issued hereunder shall be deemed to have become the holder of record of the shares
represented thereby as at the close of business on the date this Warrant is exercised in accordance with the terms set forth herein with respect to such shares, whether or not the transfer books of
the Company shall be closed. 

        3.     Payment of Purchase Price. The Purchase Price may be paid (a) in cash or by check, (b) by the surrender by
the Holder to the Company of any promissory notes or other obligations issued by the Company, with all such notes and obligations so surrendered being credited against the Purchase Price in an amount
equal to the principal amount thereof plus accrued interest to the date of surrender, or (c) by any combination of the foregoing. 

        4.     Net Issue Election. The Holder may elect to receive, without the payment by the Holder of any additional consideration,
shares of Common Stock equal to the value of this Warrant or any portion hereof by the surrender of this Warrant or such portion to the Company, with the net issue election notice annexed hereto duly
executed, at the principal office of the Company. Thereupon, the Company shall issue to the Holder such number of fully paid and nonassessable shares of Common Stock as is computed using the following
formula: 

	 	 	X	 	=	 	Y(A - B)
 A	 	 

	where:	 	X =	 	the number of shares of Common Stock to be issued to the Holder pursuant to this Section 4.
	

 	
 	

Y =	
 	

the number of shares of Common Stock covered by this Warrant in respect of which the net issue election is made pursuant to this Section 4.
	

 	
 	

A =	
 	

the Fair Market Value (defined below) of one share of Common Stock as determined at the time the net issue election is made pursuant to this Section 4.
	

 	
 	

B =	
 	

the Purchase Price in effect under this Warrant at the time the net issue election is made pursuant to this Section 4.

"Fair
Market Value" of a share of Common Stock as of the date that the net issue election is made (the "Determination Date") shall mean: 

        (i)    If
the net issue election is made in connection with and contingent upon the closing of the sale of the Company's Common Stock to the public in a public offering
pursuant to a Registration Statement under the 1933 Act (a "Public Offering"), and if the Company's Registration Statement relating to such Public
Offering ("Registration Statement") has been declared effective by the Securities and Exchange Commission, then the initial "Price to Public" specified
in the final prospectus with respect to such offering. 

        (ii)   If
the net issue election is not made in connection with and contingent upon a Public Offering, then as follows: 

        (A)  If
traded on a securities exchange or the Nasdaq National Market, the fair market value of the Common Stock shall be deemed to be the average of the closing or last
reported sale prices of the Common Stock on such exchange or market over the five day period ending five trading days prior to the Determination Date; 

        (B)  If
otherwise traded in an over-the-counter market, the fair market value of the Common Stock shall be deemed to be the average of the closing ask
prices of the Common Stock over the five day period ending five trading days prior to the Determination Date; and 

        (C)  If
there is no public market for the Common Stock, then fair market value shall be determined in good faith by the Company's Board of Directors. 

        5.     Partial Exercise. This Warrant may be exercised in part, and the Holder shall be entitled to receive a new warrant, which
shall be dated as of the date of this Warrant, covering the number of shares in respect of which this Warrant shall not have been exercised. 

        6.     Fractional Shares. In no event shall any fractional share of Common Stock be issued upon any exercise of this Warrant. If,
upon exercise of this Warrant in its entirety, the Holder would, except as provided in this Section 6, be entitled to receive a fractional share of Common Stock, then the Company shall pay to
the Holder an amount in cash equal to the fair market value of the resulting fractional share. 

        7.     Expiration Date; Automatic Exercise. This Warrant shall expire at the earliest to occur of (i) the close of
business on June 7, 2011; (ii) two years after the effective date of the initial Public 

Offering
of the Company on the NASDAQ or other stock exchange in the United States; or (iii) the effective date of a Merger as defined below; (the "Expiration
Date") and shall be void thereafter. 

        Notwithstanding
the term of this Warrant fixed pursuant to this Section 7, and provided Holder has received advance written notice of at least twenty (20) days and has not
earlier exercised this Warrant, and provided this Warrant has not been assumed by the successor entity (or parent thereof), upon the consummation of a Merger (as defined below), this Warrant shall
automatically be exercised pursuant to Section 4 hereof, without any action by Holder. "Merger" means: (i) a sale of all or substantially
all of the Company's assets to an Unaffiliated Entity (as defined below), or (ii) the merger, consolidation or acquisition of the Company with, into or by an Unaffiliated Entity (other than a
merger or consolidation for the principle purpose of changing the domicile of the Company or a bona fide round of preferred stock equity financing), the result of which is that stockholders of the
Company immediately prior to the merger, consolidation or acquisition do not own or control more than 50% of the voting power of the surviving entity immediately following such merger, consolidation
or acquisition. "Unaffiliated Entity" means any entity that is owned or controlled by parties who own less than twenty percent (20%) of the combined
voting power of the voting securities of the Company immediately prior to such merger, consolidation or acquisition. Notwithstanding the foregoing, in the event that any outstanding warrants to
purchase equity securities of the Company are assumed by the successor entity of a Merger (or parent thereof), this Warrant may be similarly assumed at the option of the successor entity of the
Merger. The Company agrees to promptly give the Holder written notice of any proposed Merger and written notice of termination of any proposed Merger. Notwithstanding anything to the contrary in this
Warrant, the Holder may rescind any exercise of its purchase rights after a notice of termination of the proposed Merger if the exercise of this Warrant occurred after the Company notified the Holder
that the Merger was proposed or if the exercise was otherwise precipitated by such proposed Merger, provided, however that such rescission right must be exercised within thirty (30) days of
receipt of such written notice of termination of the proposed Merger. In the event of such rescission, this Warrant will continue to be exercisable on the same terms and conditions. 

        Notwithstanding
the foregoing, this Warrant shall automatically be deemed to be exercised in full pursuant to the provisions of Section 4 hereof, without any further action on
behalf of the Holder, immediately prior to the time this Warrant would otherwise expire pursuant to this Section 7. 

        8.     Reserved Shares; Valid Issuance. The Company covenants that it will at all times from and after the date hereof reserve
and keep available such number of its authorized shares of Common Stock, free from all preemptive or similar rights therein, as will be sufficient to permit the exercise of this Warrant in full. The
Company further covenants that such shares as may be issued pursuant to such exercise will, upon issuance, be duly and validly issued, fully paid and nonassessable and free from all taxes, liens and
charges with respect to the issuance thereof. 

        9.     Stock Splits and Dividends. If after the date hereof the Company shall subdivide the Common Stock, by split-up
or otherwise, or combine the Common Stock, or issue additional shares of Common Stock in payment of a stock dividend on the Common Stock, the number of shares of Common Stock issuable on the exercise
of this Warrant shall forthwith be proportionately increased in the case of a subdivision or stock dividend, or proportionately decreased in the case of a combination, and the Purchase Price shall
forthwith be proportionately decreased in the case of a subdivision or stock dividend, or proportionately increased in the case of a combination. 

        10.   OMITTED

        11.   Mergers and Reclassifications. If after the date hereof the Company shall enter into any Reorganization (as hereinafter
defined), then, as a condition of such Reorganization, lawful provisions shall be made, and duly executed documents evidencing the same from the Company or its successor shall be delivered to the
Holder, so that the Holder shall thereafter have the right to purchase, at a total price not to exceed that payable upon the exercise of this Warrant in full, the kind and amount of shares of stock
and other securities and property receivable upon such Reorganization by a holder of the number of shares of Common Stock which might have been purchased by the Holder immediately prior to such
Reorganization, and in any such case appropriate provisions shall be made with respect to 

the
rights and interest of the Holder to the end that the provisions hereof (including without limitation, provisions for the adjustment of the Purchase Price and the number of shares issuable
hereunder and the provisions relating to the net issue election) shall thereafter be applicable in relation to any shares of stock or other securities and property thereafter deliverable upon exercise
hereof. For the purposes of this Section 11, the term "Reorganization" shall include without
limitation any reclassification, capital reorganization or change of the Common Stock (other than as a result of a subdivision, combination or stock dividend provided for in Section 9 hereof),
or any consolidation of the Company with, or merger of the Company into, another corporation or other business organization (other than a merger in which the Company is the surviving corporation and
which does not result in any reclassification or change of the outstanding Common Stock), or any sale or conveyance to another corporation or other business organization of all or substantially all of
the assets of the Company. 

        12.   Certificate of Adjustment. Whenever the Purchase Price is adjusted, as herein provided, the Company shall promptly
deliver to the Holder a certificate of the Company's chief financial officer setting forth the Purchase Price after such adjustment and setting forth a brief statement of the facts requiring such
adjustment. 

        13.   Notices of Record Date, Etc. In the event of: 

        (a)   any
taking by the Company of a record of the holders of any class of securities for the purpose of determining the holders thereof who are entitled to receive any
dividend or other distribution, or any right to subscribe for, purchase, sell or otherwise acquire or dispose of any shares of stock of any class or any other securities or property, or to receive any
other right; 

        (b)   any
reclassification of the capital stock of the Company, capital reorganization of the Company, consolidation or merger involving the Company, or sale or conveyance of
all or substantially all of its assets; or 

        (c)   any
voluntary or involuntary dissolution, liquidation or winding-up of the Company; 

then
in each such event the Company will provide or cause to be provided to the Holder a written notice thereof. Such notice shall be provided at least twenty (20) business days prior to the
date specified in such notice on which any such action is to be taken. 

        14.   Representations, Warranties and Covenants. This Warrant is issued and delivered by the Company and accepted by each
Holder on the basis of the following representations, warranties and covenants made by the Company: 

        (a)   The
Company has all necessary authority to issue, execute and deliver this Warrant and to perform its obligations hereunder. This Warrant has been duly authorized
issued, executed and delivered by the Company and is the valid and binding obligation of the Company, enforceable in accordance with its terms. 

        (b)   The
shares of Common Stock issuable upon the exercise of this Warrant have been duly authorized and reserved for issuance by the Company and, when issued in accordance
with the terms hereof, will be validly issued, fully paid and nonassessable. 

        (c)   The
issuance, execution and delivery of this Warrant do not, and the issuance of the shares of Common Stock upon the exercise of this Warrant in accordance with the
terms hereof will not, (i) violate or contravene the Company's Certificate or by-laws, or any law, statute, regulation, rule, judgment or order applicable to the Company,
(ii) violate, contravene or result in a breach or default under any contract, agreement or instrument to which the Company is a party or by which the Company or any of its assets are bound or
(iii) require the consent or approval of or the filing of any notice or registration with any person or entity. 

        (d)   As
long as this Warrant is, or any shares of Common Stock issued upon exercise of this Warrant are, issued and outstanding, the Company will provide to the Holder the
financial and other information described in the Loan Agreement. 

        (e)   As
of the date hereof, the authorized capital stock of the Company consists of (i) 5,000,000 shares of Common Stock, of which 1,000,001 shares are issued and
outstanding and 47,500 shares are reserved for issuance upon the exercise of this Warrant, (ii) 1,666,212 shares of Preferred Stock, of which 1,628,486 are issued and outstanding. Attached
hereto as Exhibit A is a capitalization table summarizing the capitalization of the Company. Once per calendar quarter, the Company will provide Holder with a current capitalization table
indicating changes, if any, to the number of outstanding shares of common stock and preferred stock. 

        15.   OMITTED

        16.   Amendment. The terms of this Warrant may be amended, modified or waived only with the written consent of the Holder. 

        17.   Representations and Covenants of the Holder. This Common Stock Purchase Warrant has been entered into by the Company in
reliance upon the following representations and covenants of the Holder, which by its execution hereof the Holder hereby confirms: 

        (a)   Investment Purpose. The right to acquire Common Stock contained herein will be acquired for investment and not with a
view to the sale or distribution of any part thereof, and the Holder has no present intention of selling or engaging in any public distribution of the same except pursuant to a registration or
exemption. 

        (b)   Accredited Investor. Holder is an "accredited investor" within the meaning of the Securities and Exchange Rule 501
of Regulation D, as presently in effect. 

        (c)   Private Issue. The Holder understands (i) that the Common Stock issuable upon exercise of the Holder's rights
contained herein is not registered under the 1933 Act or qualified under applicable state securities laws on the ground that the issuance contemplated by this Warrant will be exempt from the
registration and qualifications requirements thereof, and (ii) that the Company's reliance on such exemption is predicated on the representations set forth in this Section 17. 

        (d)   Financial Risk. The Holder has such knowledge and experience in financial and business matters as to be capable of
evaluating the merits and risks of its investment and has the ability to bear the economic risks of its investment. Holder acknowledges that there is no public market for the Warrant or the Common
Stock and the Company makes no representations therefor. 

        18.   Notices, Transfers, Etc.

        (a)   Any
notice or written communication required or permitted to be given to the Holder may be given by certified mail or delivered to the Holder at the address most
recently provided by the Holder to the Company. 

        (b)   Subject
to compliance with applicable federal and state securities laws, this Warrant may be transferred by the Holder with respect to any or all of the shares
purchasable hereunder. Upon surrender of this Warrant to the Company, together with the assignment notice annexed hereto duly executed, for transfer of this Warrant as an entirety by the Holder, the
Company shall issue a new warrant of the same denomination to the assignee. Upon surrender of this Warrant to the Company, together with the assignment hereof properly endorsed, by the Holder for
transfer with respect to a portion of the shares of Common Stock purchasable hereunder, the Company shall issue a new warrant to the assignee, in such denomination as shall be requested by the Holder
hereof, and shall issue to such Holder a new warrant covering the number of shares in respect of which this Warrant shall not have been transferred. 

        (c)   In
case this Warrant shall be mutilated, lost, stolen or destroyed, the Company shall issue a new warrant of like tenor and denomination and deliver the same
(i) in exchange and substitution for and upon surrender and cancellation of any mutilated Warrant, or (ii) in lieu of any Warrant lost, stolen or destroyed, upon receipt of an affidavit
of the Holder or other evidence reasonably satisfactory to the Company of the loss, theft or destruction of such Warrant. 

        19.   No Impairment. The Company will not, by amendment of its Certificate or through any reclassification, capital
reorganization, consolidation, merger, sale or conveyance of assets, dissolution, liquidation, issue or sale of securities or any other voluntary action, avoid or seek to avoid the observance of
performance of any of the terms of this Warrant, but will at all times in good faith assist in the carrying out of all such terms and in the taking of all such action as may be necessary or
appropriate in order to protect the rights of the Holder. 

        20.   Governing Law. The provisions and terms of this Warrant shall be governed by and construed in accordance with the
internal laws of the State of California. 

        21.   Successors and Assigns. This Warrant shall be binding upon the Company's successors and assigns and shall inure to the
benefit of the Holder's successors, legal representatives and permitted assigns. 

        22.   Business Days. If the last or appointed day for the taking of any action required of the expiration of any rights granted
herein shall be a Saturday or Sunday or a legal holiday in California, then such action may be taken or right may be exercised on the next succeeding day which is not a Saturday or Sunday or such a
legal holiday. 

        23.   Value. The Company and the Holder agree that the value of this Warrant on the date of grant is $50. 

        24.   "Market Stand-Off" Agreement. Holder agrees if requested by the Company and an underwriter of Common Stock
(or other securities) of the Company, not to sell or otherwise transfer or dispose of any Common Stock (or other securities) of the Company held by Holder, during a period not to exceed one hundred
and eighty (180) days following the effective date of the first registration statement of the Company filed under the Securities Act, and to enter into an agreement to such effect;  provided that
(A) all officers and directors of the Company shall enter into similar agreements and (B) this restriction shall not apply
to shares of Common Stock being sold by any stockholder under any such registration statement. The Company may impose stop-transfer instructions with respect to the shares (or securities)
subject to the foregoing restriction until the end of said period. 

	 	 	ENERNOC, INC.
	

 	
 	

BY:	
 	

/s/  TIMOTHY G. HEALY      

	

 	
 	

NAME:	
 	

TIMOTHY G. HEALY

	

 	
 	

TITLE:	
 	

        CEO

Subscription  

	To:	 	 	 	 	 	Date:	 	 
	 	 	
	 	 	 	 	 	

        The
undersigned hereby subscribes for                          shares of Common Stock covered by this Warrant. The
certificate(s) for such shares shall be issued in
the name of the undersigned or as otherwise indicated below: 

	
	 	 
	Signature	 	 
	

	
 	

 
	Name for Registration	 	 
	

	
 	

 
	Mailing Address	 	 

Net Issue Election Notice  

	To:	 	 	 	 	 	Date:	 	 
	 	 	
	 	 	 	 	 	

        The
undersigned hereby elects under Section 4 to surrender the right to purchase             
shares of Common Stock pursuant to this Warrant. The certificate(s) for such shares issuable upon such net issue election shall be issued in the name of the undersigned or as otherwise indicated
below: 

	
	 	 
	Signature	 	 
	

	
 	

 
	Name for Registration	 	 
	

	
 	

 
	Mailing Address	 	 

Assignment  

For
value received                          hereby sells, assigns and transfers unto
                                         
                                   
 

[Please
print or typewrite name and address of Assignee]

the within Warrant, and does hereby irrevocably constitute and appoint                          its attorney to transfer
the within Warrant on the books of the within named Company
with full power of substitution on the premises. 

Dated:                                     

In
the Presence of:Exhibit 4.3  

THIS
WARRANT HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "1933 ACT'), OR ANY APPLICABLE STATE SECURITIES LAWS, AND MAY NOT BE SOLD OR TRANSFERRED UNLESS SUCH SALE OR
TRANSFER IS IN ACCORDANCE WITH THE REGISTRATION REQUIREMENTS OF SUCH ACT AND APPLICABLE LAWS OR SOME OTHER EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF SUCH ACT AND APPLICABLE LAWS IS AVAILABLE
WITH RESPECT THERETO. 

COMMON
STOCK PURCHASE WARRANT 

Warrant
No.    2                        Number of Shares: Up to 23,750 

ENERNOC, INC.  

Effective
as of June 7, 2004 

Void
after June 7, 2011 

	1.
	Issuance. This Common Stock Purchase Warrant (the "Warrant") is issued to LIGHTHOUSE CAPITAL PARTNERS V,
L.P. by ENERNOC, INC., a Delaware corporation (hereinafter with its
successors called the "Company"). 

        2.     Purchase Price; Number of Shares.

        (a)   The
registered holder of this Warrant (the "Holder"), commencing on the date hereof, is entitled upon surrender of this
Warrant with the subscription form annexed hereto duly executed, at the principal office of the Company, to purchase from the Company, at a price per share of $0.475 (the
"Purchase Price"), 11,875 fully paid and nonassessable shares of the Company's Common Stock (the "Exercise
Quantity"), $0.001 par value (the "Common Stock"). 

        (b)   The
Exercise Quantity shall automatically increase by an additional 11,875 shares of Common Stock if the aggregate amount of the Aggregate Advances under the Loan
Agreement exceed $1,250,000. 

        In
addition to other terms which may be defined herein, the following terms, as used in this Warrant, shall have the following meanings: 

        (i)    "Aggregate
Advances" means the aggregate dollar amount of all Advances made under the Loan Agreement, whether such Advances are outstanding or prepaid. 

        (ii)   "Loan
Agreement" means that certain Loan and Security Agreement No. 4021 dated June 6, 2004 between the Company and Lighthouse Capital Partners V, L.P. 

        Any
term not defined herein shall have the meaning as set forth in the Loan Agreement. 

        Until
such time as this Warrant is exercised in full or expires, the Purchase Price and the securities issuable upon exercise of this Warrant are subject to adjustment as hereinafter
provided. The person or persons in whose name or names any certificate representing shares of Common Stock is issued hereunder shall be deemed to have become the holder of record of the shares
represented thereby as at the close of business on the date this Warrant is exercised in accordance with the terms set forth herein with respect to such shares, whether or not the transfer books of
the Company shall be closed. 

        3.     Payment of Purchase Price. The Purchase Price may be paid (a) in cash or by check, (b) by the surrender by
the Holder to the Company of any promissory notes or other obligations issued by the Company, with all such notes and obligations so surrendered being credited against the Purchase Price in an amount
equal to the principal amount thereof plus accrued interest to the date of surrender, or (c) by any combination of the foregoing. 

        4.     Net Issue Election. The Holder may elect to receive, without the payment by the Holder of any additional consideration,
shares of Common Stock equal to the value of this Warrant or any portion hereof by the surrender of this Warrant or such portion to the Company, with the net issue election notice annexed hereto duly
executed, at the principal office of the Company. Thereupon, the Company shall issue to the Holder such number of fully paid and nonassessable shares of Common Stock as is computed using the following
formula: 

	 	 	X	 	=	 	Y(A - B)
 A	 	 

	where:	 	X =	 	the number of shares of Common Stock to be issued to the Holder pursuant to this Section 4.
	

 	
 	

Y =	
 	

the number of shares of Common Stock covered by this Warrant in respect of which the net issue election is made pursuant to this Section 4.
	

 	
 	

A =	
 	

the Fair Market Value (defined below) of one share of Common Stock as determined at the time the net issue election is made pursuant to this Section 4.
	

 	
 	

B =	
 	

the Purchase Price in effect under this Warrant at the time the net issue election is made pursuant to this Section 4.

"Fair
Market Value" of a share of Common Stock as of the date that the net issue election is made (the "Determination Date") shall mean: 

        (i)    If
the net issue election is made in connection with and contingent upon the closing of the sale of the Company's Common Stock to the public in a public offering
pursuant to a Registration Statement under the 1933 Act (a "Public Offering"), and if the Company's Registration Statement relating to such Public
Offering ("Registration Statement') has been declared effective by the Securities and Exchange Commission, then the initial "Price to Public" specified
in the final prospectus with respect to such offering. 

        (ii)   If
the net issue election is not made in connection with and contingent upon a Public Offering, then as follows: 

        (A)  If
traded on a securities exchange or the Nasdaq National Market, the fair market value of the Common Stock shall be deemed to be the average of the closing or last
reported sale prices of the Common Stock on such exchange or market over the five day period ending five trading days prior to the Determination Date; 

        (B)  If
otherwise traded in an over-the-counter market, the fair market value of the Common Stock shall be deemed to be the average of the closing ask
prices of the Common Stock over the five day period ending five trading days prior to the Determination Date; and 

        (C)  If
there is no public market for the Common Stock, then fair market value shall be determined in good faith by the Company's Board of Directors. 

        5.     Partial Exercise. This Warrant may be exercised in part, and the Holder shall be entitled to receive a new warrant, which
shall be dated as of the date of this Warrant, covering the number of shares in respect of which this Warrant shall not have been exercised. 

        6.     Fractional Shares. In no event shall any fractional share of Common Stock be issued upon any exercise of this Warrant. If,
upon exercise of this Warrant in its entirety, the Holder would, except as provided in this Section 6, be entitled to receive a fractional share of Common Stock, then the Company shall pay to
the Holder an amount in cash equal to the fair market value of the resulting fractional share. 

        7.     Expiration Date; Automatic Exercise. This Warrant shall expire at the earliest to occur of (i) the close of
business on June 7, 2011; (ii) two years after the effective date of the initial Public 

Offering
of the Company on the NASDAQ or other stock exchange in the United States; or (iii) the effective date of a Merger as defined below; (the "Expiration
Date") and shall be void thereafter. 

        Notwithstanding
the term of this Warrant fixed pursuant to this Section 7, and provided Holder has received advance written notice
of at least twenty (20) days and has not earlier exercised this Warrant, and provided this Warrant has not been assumed by the successor entity (or parent thereof), upon the consummation of a
Merger (as defined below), this Warrant shall automatically be exercised pursuant to Section 4 hereof, without any action by Holder
"Merger" means: (i) a sale of all or substantially all of the Company's assets to an Unaffiliated Entity (as defined below), or (ii) the
merger, consolidation or acquisition of the Company with, into or by an Unaffiliated Entity (other than a merger or consolidation for the principle purpose of changing the domicile of the Company or a
bona fide round of preferred stock equity financing), the result of which is that stockholders of the Company immediately prior to the merger, consolidation or acquisition do not own or control more
than 50% of the voting power of the surviving entity immediately following such merger, consolidation or acquisition. "Unaffiliated Entity" means any
entity that is owned or controlled by parties who own less than twenty percent (20%) of the combined voting power of the voting securities of the Company immediately prior to such merger,
consolidation or acquisition. Notwithstanding the foregoing, in the event that any outstanding warrants to purchase equity securities of the Company are assumed by the successor entity of a Merger (or
parent thereof), this Warrant may be similarly assumed at the option of the successor entity of the Merger. The Company agrees to promptly give the Holder written notice of any proposed Merger and
written notice of termination of any proposed Merger. Notwithstanding anything to the contrary in this Warrant, the Holder may rescind any exercise of its purchase rights after a notice of termination
of the proposed Merger if the exercise of this Warrant occurred after the Company notified the Holder that the Merger was proposed or if the exercise was otherwise precipitated by such proposed
Merger, provided, however that such rescission right must be exercised within thirty (30) days of receipt of such written notice of termination of the proposed Merger. In the event of such
rescission, this Warrant will continue to be exercisable on the same terms and conditions. 

        Notwithstanding
the foregoing, this Warrant shall automatically be deemed to be exercised in full pursuant to the provisions of  Section 4 hereof, without any further action on behalf of the Holder, immediately
prior to the time this Warrant would otherwise expire pursuant
to this Section 7.

        8.     Reserved Shares; Valid Issuance. The Company covenants that it will at all times from and after the date hereof reserve
and keep available such number of its authorized shares of Common Stock, free from all preemptive or similar rights therein, as will be sufficient to permit the exercise of this Warrant in full. The
Company further covenants that such shares as may be issued pursuant to such exercise will, upon issuance, be duly and validly issued, fully paid and nonassessable and free from all taxes, liens and
charges with respect to the issuance thereof. 

        9.     Stock Splits and Dividends. If after the date hereof the Company shall subdivide the Common Stock, by split-up
or otherwise, or combine the Common Stock, or issue additional shares of Common Stock in payment of a stock dividend on the Common Stock, the number of shares of Common Stock issuable on the exercise
of this Warrant shall forthwith be proportionately increased in the case of a subdivision or stock dividend, or proportionately decreased in the case of a combination, and the Purchase Price shall
forthwith be proportionately decreased in the case of a subdivision or stock dividend, or proportionately increased in the case of a combination. 

        10.   OMITTED

        11.   Mergers and Reclassifications. If after the date hereof the Company shall enter into any Reorganization (as hereinafter
defined), then, as a condition of such Reorganization, lawful provisions shall be made, and duly executed documents evidencing the same from the Company or its successor shall be delivered to the
Holder, so that the Holder shall thereafter have the right to purchase, at a total price not to exceed that payable upon the exercise of this Warrant in full, the kind and amount of shares of stock
and other securities and property receivable upon such Reorganization by a holder of the number of shares of Common Stock which might have been purchased by the Holder immediately prior to such
Reorganization, and in any such case appropriate provisions shall be made with respect to 

the
rights and interest of the Holder to the end that the provisions hereof (including without limitation, provisions for the adjustment of the Purchase Price and the number of shares issuable
hereunder and the provisions relating to the net issue election) shall thereafter be applicable in relation to any shares of stock or other securities and property thereafter deliverable upon exercise
hereof. For the purposes of this Section 11, the term "Reorganization" shall include without
limitation any reclassification, capital reorganization or change of the Common Stock (other than as a result of a subdivision, combination or stock dividend provided for in  Section 9 hereof), or
any consolidation of the Company with, or merger of the Company into, another corporation or other business organization
(other than a merger in which the Company is the surviving corporation and which does not result in any reclassification or change of the outstanding Common Stock), or any sale or conveyance to
another corporation or other business organization of all or substantially all of the assets of the Company. 

        12.   Certificate of Adjustment. Whenever the Purchase Price is adjusted, as herein provided, the Company shall promptly
deliver to the Holder a certificate of the Company's chief financial officer setting forth the Purchase Price after such adjustment and setting forth a brief statement of the facts requiring such
adjustment. 

        13.   Notices of Record Date, Etc. In the event of:

        (a)   any
taking by the Company of a record of the holders of any class of securities for the purpose of determining the holders thereof who are entitled to receive any
dividend or other distribution, or any right to subscribe for, purchase, sell or otherwise acquire or dispose of any shares of stock of any class or any other securities or property, or to receive any
other right; 

        (b)   any
reclassification of the capital stock of the Company, capital reorganization of the Company, consolidation or merger involving the Company, or sale or conveyance of
all or substantially all of its assets; or 

        (c)   any
voluntary or involuntary dissolution, liquidation or winding-up of the Company; 

then
in each such event the Company will provide or cause to be provided to the Holder a written notice thereof. Such notice shall be provided at least twenty (20) business days prior to the
date specified in such notice on which any such action is to be taken. 

        14.   Representations, Warranties and Covenants. This Warrant is issued and delivered by the Company and accepted by each
Holder on the basis of the following representations, warranties and covenants made by the Company: 

        (a)   The
Company has all necessary authority to issue, execute and deliver this Warrant and to perform its obligations hereunder. This Warrant has been duly authorized
issued, executed and delivered by the Company and is the valid and binding obligation of the Company, enforceable in accordance with its terms. 

        (b)   The
shares of Common Stock issuable upon the exercise of this Warrant have been duly authorized and reserved for issuance by the Company and, when issued in accordance
with the terms hereof, will be validly issued, fully paid and nonassessable. 

        (c)   The
issuance, execution and delivery of this Warrant do not, and the issuance of the shares of Common Stock upon the exercise of this Warrant in accordance with the
terms hereof will not, (i) violate or contravene the Company's Certificate or by-laws, or any law, statute, regulation, rule, judgment or order applicable to the Company,
(ii) violate, contravene or result in a breach or default under any contract, agreement or instrument to which the Company is a party or by which the Company or any of its assets are bound or
(iii) require the consent or approval of or the filing of any notice or registration with any person or entity. 

        (d)   As
long as this Warrant is, or any shares of Common Stock issued upon exercise of this Warrant are, issued and outstanding, the Company will provide to the Holder the
financial and other information described in the Loan Agreement. 

        (e)   As
of the date hereof, the authorized capital stock of the Company consists of (i) 5,000,000 shares of Common Stock, of which 1,000,001 shares are issued and
outstanding and 47,500 shares are reserved for issuance upon the exercise of this Warrant, (ii) 1,666,212 shares of Preferred Stock, of which 1,628,486 are issued and outstanding. Attached
hereto as Exhibit A is a capitalization table summarizing the capitalization of the Company. Once per calendar quarter, the Company will provide Holder with a current capitalization table
indicating changes, if any, to the number of outstanding shares of common stock and preferred stock. 

        15.   OMITTED

        16.   Amendment. The terms of this Warrant may be amended, modified or waived only with the written consent of the Holder. 

        17.   Representations and Covenants of the Holder. This Common Stock Purchase Warrant has been entered into by the Company in
reliance upon the following representations and covenants of the Holder, which by its execution hereof the Holder hereby confirms: 

        (a)   Investment Purpose. The right to acquire Common Stock contained herein will be acquired for investment and not with a
view to the sale or distribution of any part thereof, and the Holder has no present intention of selling or engaging in any public distribution of the same except pursuant to a registration or
exemption. 

        (b)   Accredited Investor. Holder is an "accredited investor" within the meaning of the Securities and Exchange Rule 501
of Regulation D, as presently in effect. 

        (c)   Private Issue. The Holder understands (i) that the Common Stock issuable upon exercise of the Holder's rights
contained herein is not registered under the 1933 Act or qualified under applicable state securities laws on the ground that the issuance contemplated by this Warrant will be exempt from the
registration and qualifications requirements thereof, and (ii) that the Company's reliance on such exemption is predicated on the representations set forth in this Section 17. 

        (d)   Financial Risk. The Holder has such knowledge and experience in financial and business matters as to be capable of
evaluating the merits and risks of its investment and has the ability to bear the economic risks of its investment. Holder acknowledges that there is no public market for the Warrant or the Common
Stock and the Company makes no representations therefor. 

	18.
	Notices, Transfers, Etc.

        (a)   Any
notice or written communication required or permitted to be given to the Holder may be given by certified mail or delivered to the Holder at the address most
recently provided by the Holder to the Company. 

        (b)   Subject
to compliance with applicable federal and state securities laws, this Warrant may be transferred by the Holder with respect to any or all of the shares
purchasable hereunder. Upon surrender of this Warrant to the Company, together with the assignment notice annexed hereto duly executed, for transfer of this Warrant as an entirety by the Holder, the
Company shall issue a new warrant of the same denomination to the assignee. Upon surrender of this Warrant to the Company, together with the assignment hereof properly endorsed, by the Holder for
transfer with respect to a portion of the shares of Common Stock purchasable hereunder, the Company shall issue a new warrant to the assignee, in such denomination as shall be requested by the Holder
hereof, and shall issue to such Holder a new warrant covering the number of shares in respect of which this Warrant shall not have been transferred. 

        (c)   In
case this Warrant shall be mutilated, lost, stolen or destroyed, the Company shall issue a new warrant of like tenor and denomination and deliver the same
(i) in exchange and substitution for and upon surrender and cancellation of any mutilated Warrant, or (ii) in lieu of any Warrant lost, stolen or destroyed, upon receipt of an affidavit
of the Holder or other evidence reasonably satisfactory to the Company of the loss, theft or destruction of such Warrant. 

        19.   No Impairment. The Company will not, by amendment of its Certificate or through any reclassification, capital
reorganization, consolidation, merger, sale or conveyance of assets, dissolution, liquidation, issue or sale of securities or any other voluntary action, avoid or seek to avoid the observance of
performance of any of the terms of this Warrant, but will at all times in good faith assist in the carrying out of all such terms and in the taking of all such action as may be necessary or
appropriate in order to protect the rights of the Holder. 

        20.   Governing Law. The provisions and terms of this Warrant shall be governed by and construed in accordance with the
internal laws of the State of California. 

        21.   Successors and Assigns. This Warrant shall be binding upon the Company's successors and assigns and shall inure to the
benefit of the Holder's successors, legal representatives and permitted assigns. 

        22.   Business Days. If the last or appointed day for the taking of any action required of the expiration of any rights granted
herein shall be a Saturday or Sunday or a legal holiday in California, then such action may be taken or right may be exercised on the next succeeding day which is not a Saturday or Sunday or such a
legal holiday. 

        23.   Value. The Company and the Holder agree that the value of this Warrant on the date of grant is $50. 

        24.   "Market Stand-Off" Agreement. Holder agrees if requested by the Company and an underwriter of Common Stock
(or other securities) of the Company, not to sell or otherwise transfer or dispose of any Common Stock (or other securities) of the Company held by Holder, during a period not to exceed one hundred
and eighty (180) days following the effective date of the first registration statement of the Company filed under the Securities Act, and to enter into an agreement to such effect; provided
that (A) all officers and directors of the Company shall enter into similar agreements and (B) this restriction shall not apply to shares of Common Stock being sold by any stockholder
under any such registration statement. The Company may impose stop-transfer instructions with respect to the shares (or securities) subject to the foregoing restriction until the end of
said period. 

	 	 	ENERNOC, INC.
	

 	
 	

BY:	
 	

/s/  TIMOTHY G. HEALY      

	

 	
 	

NAME:	
 	

TIMOTHY G. HEALY

	

 	
 	

TITLE:	
 	

        CEO

Subscription  

	To:	 	 	 	 	 	Date:	 	 
	 	 	
	 	 	 	 	 	

        The
undersigned hereby subscribes for                        shares of Common Stock covered by this Warrant. The certificate(s) for
such shares shall be issued in the name of the undersigned or
as otherwise indicated below: 

	
	 	 
	Signature	 	 
	

	
 	

 
	Name for Registration	 	 
	

	
 	

 
	Mailing Address	 	 

Net Issue Election Notice  

	To:	 	 	 	 	 	Date:	 	 
	 	 	
	 	 	 	 	 	

        The
undersigned hereby elects under Section 4 to surrender the right to purchase            shares of Common Stock pursuant to
this Warrant. The certificate(s) for such shares issuable upon such net issue election shall be issued in the name of the undersigned or as otherwise indicated below: 

	
	 	 
	Signature	 	 
	

	
 	

 
	Name for Registration	 	 
	

	
 	

 
	Mailing Address	 	 

Assignment  

        For value received                        hereby sells, assigns
and transfers
unto                                         
                                          
             
 

[Please
print or typewrite name and address of Assignee]

the within Warrant, and does hereby irrevocably constitute and appoint                          its attorney to transfer
the within Warrant on the books of the within named Company with full power of
substitution on the premises. 

Dated:            

In
the Presence of:

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