Document:

Blitzstrom Contract

 Exhibit 10.29 
 Amended and Restated 
 Agreement of Contract of Purchase and Supply (“Agreement”) 
 Between 
 DayStar Technologies, Inc. 
 13 Corporate Drive 
 Halfmoon, NY 12065 USA (“Seller”) 

Represented by Dr. Stephan J DeLuca, CEO 
 And 
 Blitzstrom GmbH 
 Wadenbrunner Str. 10 
 97509 Kolitzheim Germany (“Buyer”) 
 Represented by Bernhard Beck,
CEO 
 1. Preamble 
 The parties hereby enter into a second
amended and restated general agreement for the purchase of Seller’s products utilizing DayStar CIGS semiconductor technology that can produce electricity if integrated into a PV system with standard balance of systems components and beyond that
fulfill target sales market requirements. The products subject to this agreement are the following (the “product”): 
  

			
	 1.1
	 	   Any monolithically integrated module that utilizes Daystar CIGS technology
	1.2    Any other PV module product utilizing DayStar CIGS technology, including but not limited to the use of TerraFoilTM cells

 The buyer agrees to support the Seller regarding the formation of the specifications of the “product”.
Initial product specifications will be completed within 12 months. 
 The Buyer wishes to use the “product” for use in their photovoltaic systems
or other product sales. The percentage of the Seller’s total manufacturing capacity for the “product” is not fixed and may vary from time to time, affecting the total quantities of Product available for sale during the period of this
Agreement. 
 2. Quantity to be purchased 
 Blitzstrom shall
purchase 50% of “product” that is produced solely by the seller on the seller’s manufacturing equipment, insofar as the volume does not exceed the volume laid out in Table 1, column 3 “Estimated DayStar Production Offered to
Buyer”. Buyer shall also have the right, but not the obligation, to purchase up to 50% of any additional quantities of “product” produced that exceed those listed in Table 1 column 2 “Estimated Daystar production”.

 Both the obligation and the right for “product” purchases shall transfer to any DayStar affiliates per the terms described in Section 8.

  

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 Available quantities for sale will be disclosed to Buyer on a quarterly basis (Quarterly Product Projection Meetings)
beginning Q1 2008, and Buyer shall issue quarterly releases to purchase orders. Buyer agrees to purchase all available product in excess of 7% peak power efficiency as measured and documented by Seller. 
 Table 1 
  

					
	 Year
	  	 “Estimated DayStar Production”
 in MWp
	  	 “Estimated DayStar Production Offered to Buyer”

in MWp

	 2008
	  	    3.0	  	    1.5
	 2009
	  	  30.0	  	  15.0
	 2010
	  	  77.0	  	  38.5
	 2011
	  	150.0	  	  75.0
	 Total
	  	230.0	  	130.0

 3. Delivery 
 Seller
will invoice upon shipment of the product. 
 3.1 Delivery Conditions 
 Seller will provide monthly actual delivery quantities; Buyer shall take these quantities without separate purchase order. Details of delivery conditions will be further defined during the Quarterly Product Projection Meetings beginning Q1
2008, but shall be delivered DDP from DayStar production facility to destination specified by Buyer and generally adhere to Incoterms 2000, with specific terms to be determined. 
 4. Price 
 The price paid by Buyer for all “Products” through December 31, 2009 will be based on a five
percent (5%) discount off of Fair Market Wholesale Value for comparable commercially available PV modules sold within the same target market segment. Where no direct comparable product exists, prices will be linearly prorated based on the
square meter power efficiency for similarly rated products within that target market segment. 
 Fair Market Value (FMV) of comparable Silicon solar cell or
other thin film modules, based on long term contract pricing will be agreed to in writing during Quarterly Product Projection meetings beginning Q1 2008. Failure to agree to FMV will be subject to the conditions listed in paragraph 4.2 

4.1 Price Modification and Re-evaluation 
 For 2010-2011 Seller and Buyer shall in good faith negotiate further pricing by Buyer of Product. The parties agree to fix a price by mutual agreement for every six-month delivery period during the years 2010 and 2011
by the 1st of November each year, respectively, unless mutually agreed otherwise. 
 4.2 Failure to Modify Price 
 If no agreement on price is reached through the
parties’ good faith efforts within a thirty day period from the Quarterly Product Projection meetings, and price and volume will result in net loss to either party as established by documented costs, then the parties shall renegotiate or, if
necessary, terminate this Agreement by written notice. If this Agreement is terminated under these conditions the Seller agrees to continue sales for six months beyond their existing obligations or approximately 12 months from the last bi-annual
meeting, whichever is sooner, at the prices and projected quantities last agreed upon for the previous six-month period, at which 

  

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time this Agreement will terminate. Sale contracts between the Buyer and a customer signed before early termination of this agreement must be fulfilled by
the seller at the last agreed upon price and conditions. 
 4.3 Most Favored Pricing 
 Seller hereby warrants that at no time will the Buyer be charged prices for the “product” under this Agreement that exceed the prices offered to any other customer on similar terms and conditions, except for
a subsidiary, affiliate or successor of DayStar Technologies. 
 5. Performance Warranty 
 The trade goods to be warranted are Seller’s CIGS “Product” (as defined under “1.0 Preamble”) only. Seller warrants that the “product” will substantially conform to the
Specifications provided at the time of sale, or alternative Specifications as mutually agreed to. Seller warrants that the Product does not infringe any U.S. patent, copyright, trade secret or other proprietary right of any third party. 

The parties shall cooperatively form a mutually acceptable Warranty Statement and Procedure during the first Quarterly Product Projection Meeting beginning Q1 2008.
The Warranty will conform to industry standards for similarly available commercial products for sale in the intended market segments. The Warranty will state appropriate limitations of liability and include both workmanship and long-term performance
clauses, for the sale of all “product”. 
 The Warranty will be conditioned upon the proper storage, handling, transportation, and packaging per
defined and mutually agreed to conditions, operation, use, repair and conformance with Product Manuals provided by Seller (included revisions thereto) and any reasonable recommendations of Seller. 
 6. Branding and Use of Product 
 The parties will agree upon the use of
product, associated product marketing, and use of Daystar Branding during regular Quarterly Product Projection meetings 
 7. Terms of Payment 
 The purchase price (including DDP) shall be paid in U.S. Dollar by Buyer as follows: 30 days after receipt of invoice. Other methods of payment require an agreement
10 days before delivery. 
 8. Assignment 
 Neither party may
assign, pledge or otherwise transfer its rights or delegate its duties or obligations under this Agreement without the prior written consent of the other Party. Daystar shall, however, assign or otherwise transfer its rights and delegate its duties
or obligations under this Agreement with the consent of Blitzstrom, (a) to any wholly-owned affiliate or joint venture producing the products described herein, or (b) in connection with a sale or other transfer of all, or substantially
all, of its assets, a merger, or the sale or other transfer of its assets to a third Party. 
 9. Nondisclosure 
 The Parties shall keep secret any and all confidential information and documents provided by the other party or of which they have otherwise obtained knowledge in
connection with this Agreement, save for any information or documents that (a) is in a Party’s possession prior to disclosure or (b) is or becomes known to the public other than as a result of a breach of this Agreement, or
(c) is already in the public domain. The Parties may disclose the Confidential Information to such of the Parties’ officers, directors, employees, agents, advisors, co-venturers, consultants and representatives or of any parent of,
subsidiary of, or other entity controlled by or under common control with, the Parties (collectively, “Representatives”) who have a need to have 

  

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access to such Confidential Information. Seller may disclose the general terms of this Agreement for purposes of NASDAQ and other US securities laws and the
specific terms to its financial and legal advisors, or if required by law. Confidential information and documents shall be any information or document that is marked as “Confidential” or verbally communicated as such. The Parties duty of
confidentiality shall continue for two years after termination of this Agreement. This section supercedes any previously executed non-disclosure agreement by and between the Parties. 
  

	10.	Final Clauses 

 A. Expenses, Materials, Supplies and
Equipment. Unless otherwise specified by DayStar, all expenses, materials and supplies shall be furnished by each party at its sole cost, risk and expense. 
 B. Books and Records. The parties shall keep accurate books and records relating to the Agreement. 
 C.
Maintenance of Insurance. The parties shall, obtain, and shall, if requested, provide evidence of the following or similar insurance coverage: (a) Commercial General Liability insurance—$1,000,000.00 per occurrence, including but not
limited to products and completed operations liability, owner’s and contractor’s protective, blanket contractual liability, personal injury liability, broad form property damage. 
 D. Independent Contractor. Nothing contained in this Agreement shall be construed to constitute the parties as a partners, employees, or agents of each
other, nor shall either party have any authority to bind the other in any respect. It is intended that each shall remain an independent contractor responsible for its own actions. 
 E. Compliance with Law. Each party represents and agrees that in performing under this Agreement, it will comply fully with all permits, laws and
regulations. 
 F. Assignment. This Agreement or any project work hereunder shall not be assigned or subcontracted without the written consent
of each party. 
 G. Notice. Any notice to be given hereunder by either party to the other shall be in writing addressed to the other party at
the principal office address set forth above. 
 H. Arbitration/Choice of Law. Any claim or controversy arising out of or relating to this
Agreement shall be resolved by binding arbitration in Albany, New York by a single arbitrator under the commercial rules of the American Arbitration Association then in effect, and judgment may be entered on the award by any court of competent
jurisdiction. This Agreement and any controversy relating to this Agreement shall be governed by the laws of the State of New York, USA without regard to conflicts or choice of law principles. The controlling language of this Agreement and any
disputes shall be English. 
 I. Validity. In the event that any part of this Agreement is held to be invalid or unenforceable, such part
shall be stricken from this Agreement and the remainder of this Agreement shall remain in full force and effect. Additionally, the parties will negotiate to find a valid contract provision consistent with the overall understandings of the
parties regarding this agreement. 
  

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 J. Entire Agreement. This Agreement contains the entire agreement of the parties relating to the subject
matter and supersedes all prior and contemporaneous agreements, understandings, usages of trade and courses of dealing, whether written or oral. This Agreement may be signed in counterparts and may only be modified by a written agreement, signed by
both parties. 
  

									
	 By:
	 	 /s/ Bernhard Beck
	 		 	By:	 	 /s/ Stephan J. DeLuca

	 Name:
	 	Bernhard Beck	 		 	Name:	 	Stephan J. DeLuca
	 Title:
	 	CEO	 		 	Title:	 	CEO
					
	 Date:
	 	05/11/2007	 		 	Date:	 	05/11/2007

  

 Page 5Modification Agreement Relating to $1.2 Million Term Note

 Exhibit 10.39 
 MODIFICATION AGREEMENT 
 THIS MODIFICATION AGREEMENT (“Agreement”) is
entered into as of January 1, 2007, by and between U.S. Home Systems, Inc., a Delaware corporation (“Borrower”), and The Frost National Bank, a national banking association (“Lender”). 
 R E C I T A L S: 
 A. Borrower has
executed and delivered to Lender that one certain Term Note (the “Note”) dated February 9, 2006, to be effective as of February 10, 2006, payable to the order of Lender in the original principal amount of One Million Two
Hundred Thousand and No/100 Dollars ($1,200,000.00). 
 B. The Note was executed pursuant to that certain First Amended and Restated Loan
Agreement (as from time to time amended, the “Loan Agreement”) dated February 9, 2006, to be effective as of February 10, 2006, between Lender and Borrower. Capitalized terms used and not otherwise defined herein have the
meanings given them in the Loan Agreement. 
 C. Borrower has requested that Lender modify certain provisions of the Note, all as hereinafter
provided, and Lender has agreed to such requests, subject to the terms and conditions set forth herein. 
 NOW, THEREFORE, for and in
consideration of Ten Dollars ($10.00) and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged and agreed, Borrower and Lender hereby agree as follows: 
 1. Interest Rate. The first sentence of Paragraph 3 of the Note is hereby amended in its entirety to read as follows: 
 Interest on the outstanding and unpaid principal balance hereof shall be computed at a per annum rate equal to the lesser of (a) a
rate equal to the Wall Street Journal London Interbank Offered Rate (as defined below) plus two percent (2.0%) per annum, with said rate to be adjusted to reflect any change in The Wall Street Journal London Interbank Offered Rate at the time
of any such change, or (b) the highest rate permitted by applicable law, but in no event shall interest contracted for, charged or received hereunder plus any other charges in connection herewith, which constitute interest exceed the maximum
interest permitted by applicable law. 
 2. Texas Finance Code. In no event shall Chapter 346 of the Texas Finance Code .(which
regulates certain revolving loan accounts and revolving tri-party accounts) apply to the Note. To the extent that Chapter 303 of the Texas Finance Code is applicable to the Note, the “weekly ceiling” specified in such chapter is the
applicable ceiling; provided that, if any applicable law permits greater interest, the law permitting the greatest interest shall apply. 
 3. Usury. No provisions of this Agreement or the Loan Documents shall require the payment or permit the collection, application or receipt of interest in excess of the maximum permitted by applicable state or federal law. If
any excess of interest in such respect is herein or in any such other instrument provided for, or shall be adjudicated to be so provided for herein or 
  

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in any such instrument, the provisions of this paragraph shall govern, and neither Borrower nor any endorsers of the Note nor their respective successors,
assigns or personal representatives shall be obligated to pay the amount of such interest to the extent it is in excess of the amount permitted by applicable law. It is expressly stipulated and agreed to be the intent of Borrower and Lender to at
all times comply with the usury and other laws relating to the Loan Documents and any subsequent revisions, repeals or judicial interpretations thereof, to the extent applicable thereto. In the event Lender or other holder of the Note ever receives,
collects or applies as interest any such excess, such amount which would be excessive interest shall be applied to the reduction of the unpaid principal balance of the Note and, if upon such application the principal balance of the Note is paid in
full, any remaining excess shall be forthwith paid to Borrower and the provisions of the Loan Documents shall immediately be deemed reformed and the amounts thereafter collectible thereunder reduced, without the necessity of execution of any new
document, so as to comply with the then applicable law, but so as to permit the recovery of the fullest amount otherwise called for thereunder. In determining whether or not the interest paid or payable under any specific contingency exceeds the
maximum interest allowed to be charged by applicable law, Borrower and Lender or other holder hereof shall, to the maximum extent permitted under applicable law, amortize, prorate, allocate and spread the total amount of interest throughout the
entire term of the Note so that the amount or rate of interest charged for any and all periods of time during the term of the Note is to the greatest extent possible less than the maximum amount or rate of interest allowed to be charged by law
during the relevant period of time. Notwithstanding any of the foregoing, if at any time applicable laws shall be changed so as to permit a higher rate or amount of interest to be charged than that permitted prior to such change, then unless
prohibited by law, references in the Note to “applicable law” for purposes of determining the maximum interest or rate of interest that can be charged shall be deemed to refer to such applicable law as so amended to allow the greater
amount or rate of interest. 
 4. Reaffirmation of Representations, Etc. Borrower hereby reaffirms to Lender each of the
representations, warranties, covenants and agreements of Borrower set forth in the Loan Documents. 
 5. Enforceable
Obligations. Borrower hereby ratifies, affirms, reaffirms, acknowledges, confirms and agrees that the Loan Documents represent valid and enforceable obligations of Borrower, and Borrower further acknowledges that there are no existing
claims, defenses, personal or otherwise, or rights of setoff whatsoever with respect to the Note, and Borrower further acknowledges and represents that no event has occurred and no condition exists which would constitute a default under the Loan
Documents or this Agreement, either with or without notice or lapse of time, or both. 
 6. Miscellaneous. 
 (a) As modified hereby, the provisions of the Note shall continue in full force and effect, and the Borrower acknowledges and reaffirms its liability to
Lender thereunder. 
 (b) Lender does not, by its execution of this Agreement, waive any rights it may have against any person not a party to
this Agreement. 
 (c) In case any of the provisions of this Agreement shall for any reason be held to be invalid, illegal or unenforceable,
such invalidity, illegality or unenforceability shall not affect any other provision hereof, and this Agreement shall be construed as if such invalid, illegal or unenforceable provision had never been contained herein. 
  

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 (d) This Agreement and the Loan Documents shall be governed and construed according to the laws of the
State of Texas (without regard to any conflict of laws principles) and the applicable laws of the United States. 
 (e) This Agreement shall
be binding upon and inure to the benefit of Lender, Borrower and their respective successors and assigns. 
 (f) This Agreement may be
executed in multiple counterparts, each of which shall constitute an original instrument, but all of which shall constitute one and the same agreement. 
 THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES. THERE
ARE NO UNWRITTEN ORAL AGREEMENTS OF THE PARTIES. 
 EXECUTED as of the day and year first above written. 
  

									
	BORROWER:	 	 	 	LENDER:
			
	U.S. HOME SYSTEMS, INC.	 		 	THE FROST NATIONAL BANK
					
	By:	 	 /s/ Robert A. DeFronzo
	 		 	By:	 	 /s/ Stephen S. Martin

		 	Robert A. DeFronzo	 		 	Name:	 	Stephen S. Martin
		 	Secretary and CFO	 		 	Title:	 	Vice President

  

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