Exhibit 10(xxx)



|     |  |                             |  |                        
|---- |  | --------------------------- |  | -----------------------
|LOGO |  | CREDIT SUISSE INTERNATIONAL
|     |  |                            
|     |  | One Cabot Square            |  | Telephone 020 7888 8888
|     |  | London E14 4QJ              |  | www.credit-suisse.com  



|           |  |                                                 |  |                  
|---------- |  | ----------------------------------------------- |  | -----------------
|Date:      |  | 05 November 2007                               
|To:        |  | TEXAS COMPETITIVE ELECTRIC HOLDINGS COMPANY LLC
|Address:   |  |                                                 |  | 1601 Bryan       
|           |  |                                                 |  | Dallas, TX, 75201
|Fax:       |  |                                                 |  | (214) 812-4097   
|Attention: |  |                                                 |  | Treasurer        
|From:      |  | CREDIT SUISSE INTERNATIONAL                    
|Ref. No.   |  | 53314535 TCEH004                               

Ladies and Gentlemen:

The purpose of this letter agreement is to confirm the terms and conditions of the Transaction entered into between CREDIT SUISSE INTERNATIONAL (CSI or Party A), and TEXAS COMPETITIVE ELECTRIC
HOLDINGS COMPANY LLC (Counterparty or Party B) on the Trade Date specified below (the Transaction). This letter agreement constitutes a Confirmation as referred to in the Swap Agreement (as defined
below), and supersedes any previous confirmation or other writing in respect to the transaction described below.

This Confirmation
amends, restates and supersedes in its entirety all Confirmations dated prior to the date hereof in respect of this Transaction.

1.
The definitions and provisions contained in the 2006 ISDA Definitions (the Definitions), as published by the International Swaps and Derivatives Association, Inc. (ISDA), are incorporated into this Confirmation. This
Confirmation evidences a complete and binding agreement between you and us as to the terms of the Transaction to which this Confirmation relates and supplements, forms part of, and is subject to the ISDA Master Agreement, dated as of
October 29, 2007 (as amended, supplemented or otherwise modified from time to time (the Swap Agreement) between Party A and Party B. All provisions contained or incorporated by reference in the Swap Agreement will govern this
Confirmation except as expressly modified below. In the event of any inconsistency between this Confirmation, the Definitions or the Swap Agreement, as the case may be, this Confirmation will control for purposes of the Transaction to which this
Confirmation relates.

2. The terms of the particular Transaction to which this Confirmation relates are as follows:



|                  |  |                                                                                                          
|----------------- |  | ---------------------------------------------------------------------------------------------------------
|Party A:          |  | As defined above                                                                                         
|                  | 
|Party B:          |  | As defined above                                                                                         
|                  | 
|Notional Amount:  |  | USD                                                                                                      
|                  | 
|Trade Date:       |  | 29 October 2007                                                                                          
|                  | 
|Effective Date:   |  | 09 November 2007                                                                                         
|                  | 
|Termination Date: |  | 10 October 2012, subject to adjustment in accordance with the Modified Following Business Day Convention.



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|                                   |  |                                                                                                                                                                                                                          
|---------------------------------- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Fixed Amounts:                     |  |                                                                                                                                                                                                                          
|                                   | 
|Fixed Rate Payer:                  |  | Party B                                                                                                                                                                                                                  
|                                   | 
|Fixed Rate Payer Payment Dates:    |  | The 9th day of each February, May, August and November, commencing on 09 February 2008 up to and including the Termination Date, subject to adjustment in accordance with the Modified Following
Business Day Convention.
|                                   | 
|Fixed Rate:                        |  | % per annum.                                                                                                                                                                                                             
|                                   | 
|Fixed Rate Day Count Fraction:     |  | Actual/360                                                                                                                                                                                                               
|                                   | 
|Fixed Rate Period End Dates:       |  | Adjusted in accordance with the Modified Following Business Day Convention                                                                                                                                               
|                                   | 
|Floating Amounts:                  |  |                                                                                                                                                                                                                          
|                                   | 
|Floating Rate Payer:               |  | Party A                                                                                                                                                                                                                  
|                                   | 
|Floating Rate Payer Payment Dates: |  | The 9th day of each February, May, August and November, commencing on 09 February 2008 up to and including the Termination Date, subject to adjustment in accordance with the Modified
Following Business Day Convention.
|                                   | 
|Floating Rate Option:              |  | USD-LIBOR-BBA; provided, however, that in respect of the final Calculation Period, Linear Interpolation shall apply based upon a Designated Maturity of 2 months and a Designated Maturity
of 3 months                   
|                                   | 
|Designated Maturity:               |  | 3 months (except as noted above)                                                                                                                                                                                         
|                                   | 
|Floating Rate Spread:              |  | None                                                                                                                                                                                                                     
|                                   | 
|Floating Rate Day Count Fraction:  |  | Actual/360                                                                                                                                                                                                               
|                                   | 
|Floating Rate Reset Dates:         |  | The first day of each Calculation Period                                                                                                                                                                                 
|                                   | 
|Compounding:                       |  | Not Applicable                                                                                                                                                                                                           
|                                   | 
|Floating Rate Period End Dates:    |  | Adjusted in accordance with the Modified Following Business Day Convention                                                                                                                                               
|                                   | 
|Business Days:                     |  | New York and London                                                                                                                                                                                                      
|                                   | 
|Calculation Agent:                 |  | Party A                                                                                                                                                                                                                  



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3. Additional Provision.

This Transaction may be assigned by the Counterparty (in whole or in part) to any third party with Party As consent (such consent not to be unreasonably withheld or delayed). Party A may assign its position
hereunder (in whole in part) to any third party with Party Bs consent, which will not be unreasonably withheld or delayed. This Transaction and the Confirmation will be binding upon, inure to the benefit of, and be enforceable by, the parties
thereto and their respective successors and permitted assigns.

4. Governing Law

This Confirmation will be governed by and construed in accordance with the Laws of the State of New York.

Counterparty
hereby agrees (a) to check this Confirmation (Reference No.53314535) carefully and immediately upon receipt so that errors and discrepancies can be promptly identified and rectified and (b) to confirm that the foregoing correctly sets
forth the terms of the agreement between Party A and Counterparty with respect to this particular Transaction to which this Confirmation relates, by executing a copy of this Confirmation and providing the other information requested herein and
returning a copy to us by fax at (212)322-0159.



Very truly yours,CREDIT SUISSE INTERNATIONALBy its agent: CREDIT SUISSE SECURITIES (USA) LLCBy:

/s/ Yolanda Perez-WilsonName:

Yolanda Perez-WilsonTitle:

Assistant Vice PresidentComplex Product SupportRef. No.


Accepted and confirmed as of date first above written:



|                                                |  |                          
|----------------------------------------------- |  | -------------------------
|TEXAS COMPETITIVE ELECTRIC HOLDINGS COMPANY LLC
|                                                | 
|By:                                             |  | /s/ Michael Perkins      
|Name:                                           |  | Michael Perkins          
|Title:                                          |  | Dir. Financial Compliance



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