Document:

Lock-up
      Agreement

    

    ________________,
      2008

    

    Crusader
      Securities, Inc.

    230
      Park
      Avenue, Suite 1000

    New
      York,
      NY 10169

    

    
      	
            	Re:	
              Renewable
                Energy Acquisition Corp.

            

    

    

    Ladies
      and Gentlemen: 

    

    This
      letter is being delivered to you in connection with the proposed Underwriting
      Agreement (the “Underwriting Agreement”), between Renewable Energy Acquisition
      Corp., a corporation organized under the laws of Nevada (the “Company”), and you
      as the Underwriter relating to an underwritten public offering of Units
      consisting of one share of the Company’s common stock, par value $0.001 per
      share (the “Common Stock”) and two warrants, each to purchase one share of
      Common Stock, of the Company. 

    

    In
      order
      to induce you to enter into the Underwriting Agreement, the undersigned will
      not, without your prior written consent, offer, sell, contract to sell, pledge
      or otherwise dispose of, (or enter into any transaction which is designed to,
      or
      might reasonably be expected to, result in the disposition (whether by actual
      disposition or effective economic disposition due to cash settlement or
      otherwise) by the undersigned or any affiliate of the undersigned or any person
      in privity with the undersigned or any affiliate of the undersigned), directly
      or indirectly, including the filing (or participation in the filing) of a
      registration statement with the Securities and Exchange Commission in respect
      of, or establish or increase a put equivalent position or liquidate or decrease
      a call equivalent position within the meaning of Section 16 of the Securities
      Exchange Act of 1934, as amended, (the “Exchange Act”) and the rules and
      regulations of the Securities and Exchange Commission promulgated thereunder
      with respect to, any shares of capital stock of the Company or any securities
      convertible into, or exercisable or exchangeable for such capital stock, or
      publicly announce an intention to effect any such transaction, for a period
      of
      180 days after the date of the Underwriting Agreement (the “Restricted Period”);
      provided however that the foregoing sentence shall not apply to (A) shares
      of
      Common Stock disposed of as bona fide gifts approved in writing by the
      Underwriter, (B) any transfer for estate planning purposes of shares of Common
      Stock to persons immediately related to such transferor by blood, marriage
      or
      adoption, (C) any trust solely for the benefit of such transferor and/or the
      persons described in the preceding clause, or (D) the exercise of an option
      granted by one or more of the Initial Stockholders to a third party prior to
      the
      date hereof; provided, however, that with respect to each of the transfers
      described in clauses (A), (B), (C) and (D) of this sentence, (i) prior to such
      transfer, the transferee of such transfer, or the trustee or legal guardian
      on
      behalf of any transferee, agrees in writing to be bound by the terms of this
      letter and (ii) no filing by any party under the Exchange Act shall be required
      or shall be voluntarily made in connection with such disposition or transfer.
      

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    The
      term
      the “Restricted Period” means the period commencing on the date hereof and
      ending 180 days after the date of the Underwriting Agreement, except that if
      (a)
      during the last 17 days of the Restricted Period the Company issues an earnings
      release or material news or a material event relating to the Company occurs
      or
      (b) prior to the expiration of the Restricted Period the Company announces
      that
      it will release earnings results during the 16 day period beginning on the
      last
      day of the Restricted Period, then the Restricted Period shall end on and
      include the 18th day following the date of the issuance of the earnings release
      or the occurrence of the material news or material event. 

    

    If
      for
      any reason the Underwriting Agreement shall be terminated prior to the Closing
      Date (as defined in the Underwriting Agreement), the agreement set forth above
      shall likewise terminate and be of no force or effect. 

     

    
      	Yours very truly,	 	 	 
	 	 	 	 
	
            	 	 	
            
	
              
                

              

              Larry Hopfenspirger

              7078 East Fish Lake Road, Suite 800

              Minneapolis, MN 55311

            	 	 	
            

    

     

    
      
        
        

      

      
        2Lock-up
      Agreement

     

    ________________,
      2008

    

    Crusader
      Securities, Inc.

    230
      Park
      Avenue, Suite 1000

    New
      York,
      NY 10169

    

    Re: Renewable
      Energy Acquisition Corp.

    

    Ladies
      and Gentlemen: 

    

    This
      letter is being delivered to you in connection with the proposed Underwriting
      Agreement (the “Underwriting Agreement”), between Renewable Energy Acquisition
      Corp., a corporation organized under the laws of Nevada (the “Company”), and you
      as the Underwriter relating to an underwritten public offering of Units
      consisting of one share of the Company’s common stock, par value $0.001 per
      share (the “Common Stock”) and two warrants, each to purchase one share of
      Common Stock, of the Company. 

    

    In
      order
      to induce you to enter into the Underwriting Agreement, the undersigned will
      not, without your prior written consent, offer, sell, contract to sell, pledge
      or otherwise dispose of, (or enter into any transaction which is designed to,
      or
      might reasonably be expected to, result in the disposition (whether by actual
      disposition or effective economic disposition due to cash settlement or
      otherwise) by the undersigned or any affiliate of the undersigned or any person
      in privity with the undersigned or any affiliate of the undersigned), directly
      or indirectly, including the filing (or participation in the filing) of a
      registration statement with the Securities and Exchange Commission in respect
      of, or establish or increase a put equivalent position or liquidate or decrease
      a call equivalent position within the meaning of Section 16 of the Securities
      Exchange Act of 1934, as amended, (the “Exchange Act”) and the rules and
      regulations of the Securities and Exchange Commission promulgated thereunder
      with respect to, any shares of capital stock of the Company or any securities
      convertible into, or exercisable or exchangeable for such capital stock, or
      publicly announce an intention to effect any such transaction, for a period
      of
      180 days after the date of the Underwriting Agreement (the “Restricted Period”);
      provided however that the foregoing sentence shall not apply to (A) shares
      of
      Common Stock disposed of as bona fide gifts approved in writing by the
      Underwriter, (B) any transfer for estate planning purposes of shares of Common
      Stock to persons immediately related to such transferor by blood, marriage
      or
      adoption, (C) any trust solely for the benefit of such transferor and/or the
      persons described in the preceding clause, or (D) the exercise of an option
      granted by one or more of the Initial Stockholders to a third party prior to
      the
      date hereof; provided, however, that with respect to each of the transfers
      described in clauses (A), (B), (C) and (D) of this sentence, (i) prior to such
      transfer, the transferee of such transfer, or the trustee or legal guardian
      on
      behalf of any transferee, agrees in writing to be bound by the terms of this
      letter and (ii) no filing by any party under the Exchange Act shall be required
      or shall be voluntarily made in connection with such disposition or transfer.
      

    
      
         

      

      
         

        
          

        

      

       

    

    The
      term
      the “Restricted Period” means the period commencing on the date hereof and
      ending 180 days after the date of the Underwriting Agreement, except that if
      (a)
      during the last 17 days of the Restricted Period the Company issues an earnings
      release or material news or a material event relating to the Company occurs
      or
      (b) prior to the expiration of the Restricted Period the Company announces
      that
      it will release earnings results during the 16 day period beginning on the
      last
      day of the Restricted Period, then the Restricted Period shall end on and
      include the 18th day following the date of the issuance of the earnings release
      or the occurrence of the material news or material event. 

    

    If
      for
      any reason the Underwriting Agreement shall be terminated prior to the Closing
      Date (as defined in the Underwriting Agreement), the agreement set forth above
      shall likewise terminate and be of no force or effect. 

    

    Yours
      very truly,

    
      	 	 	 	 
	
            	 	 	
            
	
              

              Zenghua
                Ye

            	 	 	
            
	
              7078
                East Fish Lake Road, Suite 800

            	 	 	
            
	
              Minneapolis,
                MN 55311

            	 	 	 

    

     

    
      
         

      

      
        2

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