Exhibit 99(f)

SEMI-ANNUAL SERVICERS CERTIFICATE

ONCOR
ELECTRIC DELIVERY TRANSITION BOND COMPANY LLC,

$789,777,000 Transition Bonds, Series 2004-1

Oncor Electric Delivery Company, as Servicer.

Pursuant to Section 4.01(c)(ii) of the Series 2004-1 Transition Property Servicing Agreement dated as of June 7, 2004 (the Agreement) between Oncor Electric Delivery Company, as
Servicer and Oncor Electric Delivery Transition Bond Company LLC, as Issuer, the Servicer does hereby certify as follows:

Capitalized terms used herein have the respective meanings as set forth in the Agreement. References herein to certain sections and subsections are references to the respective sections of the Agreement.



|                    |  |                         
|------------------- |  | ------------------------
|Collection Periods: |  | May 2009 to October 2009
|Payment Date:       |  | November 16, 2009       
|Todays Date:       |  | November 6, 2009        



|      |  |                                                                                                                                                                        |  |   |             
|----- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | - | ------------
|      |  |                                                                                                                                                                       
|1.    |  | COLLECTIONS ALLOCABLE AND AGGREGATE AMOUNTS AVAILABLE FOR THE CURRENT PAYMENT DATE:                                                                                    |  |   |             
|      |  |                                                                                                                                                                       
|i.    |  | Remittances for the May 2009 Series 2004.-1 Collection Period                                                                                                          |  | $ | 5,959,756.99
|ii.   |  | Remittances for the June 2009 Series 2004.-1 Collection Period                                                                                                         |  | $ | 6,028,382.57
|iii.  |  | Remittances for the July 2009 Series 2004.-1 Collection Period                                                                                                         |  | $ | 7,920,054.98
|iv.   |  | Remittances for the August 2009 Series 2004.-1 Collection Period                                                                                                       |  | $ | 8,699,184.28
|v.    |  | Remittances for the September 2009 Series 2004.-1 Collection Period                                                                                                    |  | $ | 9,724,745.39
|vi.   |  | Remittances for the October 2009 Series 2004.-1 Collection Period                                                                                                      |  | $ | 8,264,811.43
|vii.  |  | Remittances for the
                                         Series
2004-1 Collection Period after
                                         (use 6
prior periods only) |  | $ |             
|viii. |  | Remittances for the
                                         Series
2004-1 Collection Period after
                                         (use 6
prior periods only) |  | $ |             
|ix.   |  | Remittances for the
                                         Series
2004-1 Collection Period after
                                         (use 6
prior periods only) |  | $ |             
|x.    |  | Remittances for the                      Series 2004-1 Collection
Period                                                                                               |  | $ |             
|xi.   |  | Remittances for the                      Series 2004-1 Collection
Period                                                                                               |  | $ |             
|xii.  |  | Investment Earnings on Series 2004-1 Collection Account:                                                                                                               |  | $ | 0.00        
|xiii. |  | Investment Earnings on Series 2004-1 Capital Subaccount                                                                                                                |  | $ | 144.56      
|xiv.  |  | Investment Earnings on Series 2004-1 Overcollateralization Subaccount                                                                                                  |  | $ | 8.25        
|xv.   |  | Investment Earnings on Series 2004-1 Reserve Subaccount:                                                                                                               |  | $ | 0.00        



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|   |  |        |  |                                                                                               |  |              |               
|-- |  | ------ |  | --------------------------------------------------------------------------------------------- |  | ------------ | --------------
|   |  | xvi.   |  | Investment Earnings on Series 2004-1 General Subaccount                                       |  | $            | 87.65         
|   |  |        |  |                                                                                               |  |              |               
|   |  |        | 
|   |  | xvii.  |  | Series 2004-1 General Subaccount Balance (sum of i through xvi above):                        |  | $            | 46,597,176.10 
|   |  |        |  |                                                                                               |  |              |               
|   |  |        | 
|   |  | xviii. |  | Series 2004-1 Reserve Subaccount Balance as of Prior Series 2004-1 Payment Date               |  | $            | 0.00          
|   |  | xix.   |  | Series 2004-1 Overcollateralization Subaccount Balance as of Prior Series 2004-1 Payment Date |  | $            | 0.00          
|   |  | xx.    |  | Series 2004-1 Capital Subaccount Balance as of Prior Series 2004-1 Payment Date               |  | $            | 2,330,871.22  
|   |  |        |  |                                                                                               |  |              |               
|   |  |        | 
|   |  | xxi.   |  | Series 2004-1 Collection Account Balance (sum of xvii. through xx above)                      |  | $            | 48,928,047.32 
|   |  |        |  |                                                                                               |  |              |               
|   |  |        | 
|2. |  |        |  | OUTSTANDING AMOUNTS AS OF PRIOR SERIES 2004-1 PAYMENT DATE:                                   |  |              |               
|   |  |        | 
|   |  | i.     |  | Class A-1 Outstanding Amount                                                                  |  | $            | 10,322,896.00 
|   |  | ii.    |  | Class A-2 Outstanding Amount                                                                  |  | $            | 221,000,000.00
|   |  | iii.   |  | Class A-3 Outstanding Amount                                                                  |  | $            | 289,777,000.00
|   |  |        |  |                                                                                               |  |              |               
|   |  | iv.    |  |                                                                                               |  | $            |               
|   |  | v.     |  | Aggregate Outstanding Amount of All Series 2004-1 Bonds                                       |  | $            | 521,099,896.00
|   |  |        |  |                                                                                               |  |              |               
|   |  |        | 
|3. |  |        |  | REQUIRED FUNDING/PAYMENTS AS OF CURRENT PAYMENT DATE:                                         |  |              |               
|   |  |        | 
|   |  |        |  | SERIES 2004-1 PRINCIPAL                                                                       |  | PRINCIPALDUE
|   |  |        | 
|   |  |        |  |                                                                                               |  |              |               
|   |  | i.     |  | Class A-1                                                                                     |  | $            | 10,322,896.00 
|   |  | ii     |  | Class A-2                                                                                     |  | $            | 23,687,149.00 
|   |  | iii.   |  | Class A-3                                                                                     |  | $            | 0.00          
|   |  |        |  |                                                                                               |  |              |               
|   |  | iv.    |  |                                                                                               |  |              |               
|   |  | v.     |  | For all Series 2004-1 Bonds                                                                   |  |              | 34,010,045.00 
|   |  |        |  |                                                                                               |  |              |               



| |  |       |  |                                                |  |                  |   |  |                           |  |                  |                |                 |   |              
| |  | ----- |  | ---------------------------------------------- |  | ---------------- | - |  | ------------------------- |  | ---------------- | -------------- | --------------- | - | -------------
| |  |       |  | SERIES 2004-1                                  |  | BONDINTERESTRATE |   |  | DAYS ININTERESTPERIOD (1) |  | PRINCIPALBALANCE |                | INTERESTDUE    
| |  | vi.   |  | Class A-1                                      |  | 3.52             | % |  | 180                       |  | $                | 10,322,896.00  |                 | $ | 181,682.97   
| |  | vii.  |  | Class A-2                                      |  | 4.81             | % |  | 180                       |  | $                | 221,000,000.00 |                 | $ | 5,315,050.00 
| |  | viii. |  | Class A-3                                      |  | 5.29             | % |  | 180                       |  | $                | 289,777,000.00 |                 | $ | 7,664,601.65 
| |  |       |  |                                                |  |                  |   |  |                           |  |                  |                |                 |   |              
| |  | ix.   |  |                                                |  |                  |   |  |                           |  |                  |                |                 |   |              
| |  | x.    |  | For All Series 2004-1 Bonds                    |  |                  |   |  |                           |  | $                | 521,099,896.00 |                 | $ | 13,161,334.62
| |  |       |  |                                                |  |                  |   |  |                           |  |                  |                |                 |   |              
| |  |       |  |                                                |  |                 
| |  |       |  |                                                |  |                  |   |  |                           |  | REQUIREDLEVEL    |                | FUNDINGREQUIRED
| |  |       |  |                                                |  |                 
| |  | xi.   |  | Series 2004-1 Overcollateralization Subaccount |  |                  |   |  |                           |  | $                | 1,809,907.00   |                 | $ | 1,809,907.00 
| |  | xii.  |  | Series 2004-1 Capital Subaccount               |  |                  |   |  |                           |  | $                | 3,948,885.00   |                 | $ | 1,618,013.78 



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---

|   |  |      |  |                                                                                        |  |                                                      |            |   |              
|-- |  | ---- |  | -------------------------------------------------------------------------------------- |  | ---------------------------------------------------- | ---------- | - | -------------
|   |  | (1)  |  | On 30/360 day basis for initial payment date; otherwise use one-half of annual rate.   |  |                                                      |           
|   |  |      | 
|4. |  |      |  | ALLOCATION OF REMITTANCES AS OF CURRENT PAYMENT DATE PURSUANT TO §8.02(d) OF INDENTURE |  |                                                      |           
|   |  |      | 
|   |  | i.   |  | Trustee Fees and Expenses (subject to cap-see 8.02(e)(i) of the Indenture):            |  | $                                                    | 0.00      
|   |  | ii.  |  | Indenture Manager Fees (subject to cap-see 8.02(e)(i) of the Indenture):               |  | $                                                    | 0.00      
|   |  | iii. |  | Series 2004-1 Servicing Fee:                                                           |  | $                                                    | 122,444.25
|   |  | iv.  |  | Operating Expenses (subject to cap-see 8.02(e)(iii) of the Indenture):                 |  |                                                      |           
|   |  |      |  |                                                                                        |  | Trust Operating Expense:                             |            | $ | 0.00         
|   |  |      |  |                                                                                        |  | Trust Accounting Expense:                            |            | $ | 0.00         
|   |  |      |  |                                                                                        |  | Rating Agency Fees (reimburse Servicer):             |            | $ | 10,000.00    
|   |  |      |  |                                                                                        |  | Administration Fee:                                  |            | $ | 0.00         
|   |  |      |  |                                                                                        |  | Audit Fee (reimburse Administrator - Sec 3 of Agrmt) |            | $ | 25,577.00    
|   |  |      |  |                                                                                        |  |                                                      |            |   |              
|   |  |      |  |                                                                                       
|   |  |      |  |                                                                                        |  | Total Fees and Expenses (I through iv.)              |            | $ | 158,021.25   
|   |  |      |  |                                                                                        |  |                                                      |            |   |              
|   |  |      | 
|   |  | v.   |  | Semi-Annual Interest -including any past-due for prior period(s)                       |  |                                                      |           
|   |  |      | 
|   |  |      |  | SERIES 2004-1                                                                          |  |                                                      |           
|   |  |      |  | 1.                                                                                     |  | Class A-1 Interest Payment                           |            | $ | 181,682.97   
|   |  |      |  | 2.                                                                                     |  | Class A-2 Interest Payment                           |            | $ | 5,315,050.00 
|   |  |      |  | 3.                                                                                     |  | Class A-3 Interest Payment                           |            | $ | 7,664,601.65 
|   |  |      | 
|   |  | vi.  |  | Principal Due and Payable as a Result of Event of Default or on Final Maturity Date    |  |                                                      |           
|   |  |      | 
|   |  |      |  | SERIES 2004-1                                                                          |  |                                                      |           
|   |  |      |  | 1.                                                                                     |  | Class A-1 Principal Payment                          |            | $ | 0.00         
|   |  |      |  | 2.                                                                                     |  | Class A-2 Principal Payment                          |            | $ | 0.00         
|   |  |      |  | 3.                                                                                     |  | Class A-3 Principal Payment                          |            | $ | 0.00         
|   |  |      | 
|   |  | vii. |  | Semi-Annual Principal                                                                  |  |                                                      |           
|   |  |      | 
|   |  |      |  | SERIES 2004-1                                                                          |  |                                                      |           
|   |  |      |  | 1.                                                                                     |  | Class A-1 Principal Payment                          |            | $ | 10,322,896.00
|   |  |      |  | 2.                                                                                     |  | Class A-2 Principal Payment                          |            | $ | 23,687,149.00
|   |  |      |  | 3.                                                                                     |  | Class A-3 Principal Payment                          |            | $ | 0.00         



- 3 -



---

|   |  |       |  |                                                                                                                                                               |  |                                                         |               |   |               
|-- |  | ----- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ------------------------------------------------------- | ------------- | - | --------------
|4. |  |       |  | ALLOCATION OF REMITTANCES AS OF CURRENT PAYMENT DATE PURSUANT TO §8.02(d) OF INDENTURE (CONTINUED)                                                            |  |                                                         |              
|   |  |       | 
|   |  | viii. |  | Funding of Series 2004-1 Capital Subaccount (to required level)                                                                                               |  | $                                                       | 1,618,013.78 
|   |  | ix.   |  | Funding of Series 2004-1 Overcollateralization Subaccount (to required level)                                                                                 |  | $                                                       | 1,809,907.00 
|   |  |       | 
|   |  | x.    |  | Investment Earnings on Series 2004-1 Capital Subaccount Released to Issuer                                                                                    |  | $                                                       | 144.56       
|   |  |       | 
|   |  | xi.   |  | Deposit to Series 2004-1 Reserve Subaccount                                                                                                                   |  | $                                                       | 0.00         
|   |  | xii.  |  | Released to Issuer upon Retirement of all Bonds                                                                                                               |  | $                                                       | 0.00         
|   |  |       | 
|   |  | xiii. |  | AGGREGATE REMITTANCES AS OF CURRENT PAYMENT DATE                                                                                                              |  | $                                                       | 50,757,466.21
|   |  |       |  |                                                                                                                                                               |  |                                                         |               |   |               
|   |  |      
|5. |  |       |  | OUTSTANDING AMOUNT AND SERIES 2004-1 COLLECTION ACCOUNT BALANCE AS OF CURRENT PAYMENT DATE (AFTER GIVING EFFECT TO PAYMENTS TO BE MADE ON SUCH PAYMENT
DATE):
|   |  |       | 
|   |  |       |  | SERIES 2004-1                                                                                                                                                 |  |                                                         |              
|   |  |       |  |                                                                                                                                                              
|   |  | i.    |  |                                                                                                                                                               |  | Class A-1 Outstanding Amount                            |               | $ | 0.00          
|   |  | ii.   |  |                                                                                                                                                               |  | Class A-2 Outstanding Amount                            |               | $ | 197,312,851.00
|   |  | iii.  |  |                                                                                                                                                               |  | Class A-3 Outstanding Amount                            |               | $ | 289,777,000.00
|   |  |       |  |                                                                                                                                                               |  |                                                         |               |   |               
|   |  | iv.   |  |                                                                                                                                                               |  |                                                         |               |   |               
|   |  | v.    |  |                                                                                                                                                               |  | AGGREGATE OUTSTANDING AMOUNT OF ALL SERIES 2004-1 BONDS |               | $ | 487,089,851.00
|   |  |       |  |                                                                                                                                                               |  |                                                         |               |   |               
|   |  |       |  |                                                                                                                                                              
|   |  | vi.   |  |                                                                                                                                                               |  | Series 2004-1 Reserve Subaccount Balance                |               | $ | 0.00          
|   |  | vii.  |  |                                                                                                                                                               |  | Series 2004-1 Overcollateralization Subaccount Balance  |               | $ | 0.00          
|   |  | viii. |  |                                                                                                                                                               |  | Series 2004-1 Capital Subaccount Balance                |               | $ | 1,598,501.89  
|   |  |       |  |                                                                                                                                                               |  |                                                         |               |   |               
|   |  | ix.   |  |                                                                                                                                                               |  | AGGREGATE SERIES 2004-1 COLLECTION ACCOUNT BALANCE      |               | $ | 1,598,501.89  
|   |  |       |  |                                                                                                                                                               |  |                                                         |               |   |               
|   |  |       | 
|6. |  |       |  | SUBACCOUNT WITHDRAWALS AS OF CURRENT PAYMENT DATE (IFAPPLICABLE, PURSUANT TO SECTION 8.02(e) OF INDENTURE):                                                   |  |                                                         |              
|   |  |       |  |                                                                                                                                                              
|   |  | i.    |  |                                                                                                                                                               |  | Series 2004-1 Reserve Subaccount                        |               | $ | 0.00          
|   |  | ii.   |  |                                                                                                                                                               |  | Series 2004-1 Overcollateralization Subaccount          |               | $ | 1,809,907.00  
|   |  | iii.  |  |                                                                                                                                                               |  | Series 2004-1 Capital Subaccount                        |               | $ | 2,350,383.11  
|   |  |       |  |                                                                                                                                                               |  |                                                         |               |   |               
|   |  | iv.   |  |                                                                                                                                                               |  | TOTAL WITHDRAWALS                                       |               | $ | 4,160,290.11  
|   |  |       |  |                                                                                                                                                               |  |                                                         |               |   |               



- 4 -



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|   |  |     |  |                                                                                    |  |                                                |  |   |             
|-- |  | --- |  | ---------------------------------------------------------------------------------- |  | ---------------------------------------------- |  | - | ------------
|7. |  |     |  | SHORTFALLS IN INTEREST AND PRINCIPAL PAYMENTS AS OF CURRENT PAYMENT DATE;         
|   |  |     |  |                                                                                   
|   |  | i.  |  |                                                                                    |  | Semi-annual Interest                           |  |   |             
|   |  |     | 
|   |  |     |  | SERIES 2004-1                                                                      |  |                                                | 
|   |  |     |  | 1.                                                                                 |  | Class A-1 Interest Payment                     |  | $ | 0.00        
|   |  |     |  | 2.                                                                                 |  | Class A-2 Interest Payment                     |  | $ | 0.00        
|   |  |     |  | 3.                                                                                 |  | Class A-3 Interest Payment                     |  | $ | 0.00        
|   |  |     |  |                                                                                   
|   |  | ii. |  |                                                                                    |  | Semi-annual Principal                          |  |   |             
|   |  |     |  | SERIES 2004-1                                                                      |  |                                                | 
|   |  |     |  | 1.                                                                                 |  | Class A-1 Principal Payment                    |  | $ | 0.00        
|   |  |     |  | 2.                                                                                 |  | Class A-2 Principal Payment                    |  | $ | 0.00        
|   |  |     |  | 3.                                                                                 |  | Class A-3 Principal Payment                    |  | $ | 0.00        
|   |  |    
|8. |  |     |  | SHORTFALLS IN REQUIRED SERIES 2004-1 SUBACCOUNT LEVELS AS OF CURRENT PAYMENT DATE:
|   |  |     |  |                                                                                   
|   |  | i.  |  |                                                                                    |  | Series 2004-1 Overcollateralization Subaccount |  | $ | 1,809,907.00
|   |  | ii. |  |                                                                                    |  | Series 2004-1 Capital Subaccount               |  | $ | 2,350,383.11

IN WITNESS HEREOF, the undersigned has duly executed and delivered this Semi-Annual Servicers Certificate this 6thday of November, 2009.



ONCOR ELECTRIC DELIVERY COMPANY,as Servicer,By

/s/ John M. CaseyName:

John M. CaseyTitle:

Treasurer




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