Exhibit 99(a)(3)

MONTHLY SERVICERS CERTIFICATE

(TO BE DELIVERED EACH MONTH PURSUANT TO SECTION 3.01(b)(i)

OF THE SERIES 2004-1 TRANSITION PROPERTY SERVICING AGREEMENT)

ONCOR ELECTRIC DELIVERY TRANSITION BOND COMPANY LLC,

Series 2004-1 Bonds

Oncor Electric Delivery Company LLC, as Servicer

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

SERIES 2004-1 COLLECTION PERIOD:
December 2008



|                            |  |                                             |                |                                          |   |                                                        |  |                                                           |              |  |   |             
|--------------------------- |  | ------------------------------------------- | -------------- | ---------------------------------------- | - | ------------------------------------------------------ |  | --------------------------------------------------------- | ------------ |  | - | ------------
|Customer Class              |  | a. Series 2004-1Transition Chargesin Effect |                | b. Series 2004-1TransitionCharges Billed |   | c. ActualSeries
2004-1TransitionChargePaymentsReceived |  | d. Series 2004-1TransitionChargeRemittancesMade
toTrustee
|Residential Service         |  | $                                           | 0.000948 / kWh |                                          | $ | 2,620,278.60                                           |  | $                                                         | 2,424,219.70 |  | $ | 2,424,219.70
|General Service Secondary   |  |                                             |                |                                          | $ | 3,045,330.34                                           |  | $                                                         | 3,495,412.64 |  | $ | 3,495,412.64
|Non-demand                  |  | $                                           | 0.000179 / kWh |                                          |   |                                                        |  |                                                           |              |  |   |             
|Demand                      |  | $                                           | 0.266 / kW     |                                          |   |                                                        |  |                                                           |              |  |   |             
|General Service Primary     |  |                                             |                |                                          | $ | 421,374.51                                             |  | $                                                         | 466,230.76   |  | $ | 466,230.76  
|Non-demand                  |  | $                                           | 0.000390 / kWh |                                          |   |                                                        |  |                                                           |              |  |   |             
|Demand                      |  | $                                           | 0.280 / kW     |                                          |   |                                                        |  |                                                           |              |  |   |             
|High Voltage Service        |  | $                                           | 0.077 / kW     |                                          | $ | 111,356.53                                             |  | $                                                         | 105,079.56   |  | $ | 105,079.56  
|Lighting Service            |  | $                                           | 0.001219 / kWh |                                          | $ | 50,862.00                                              |  | $                                                         | 66,731.53    |  | $ | 66,731.53   
|Instantaneous Interruptible |  | $                                           | 0.142 / kW     |                                          | $ | 132,153.86                                             |  | $                                                         | 143,188.44   |  | $ | 143,188.44  
|Noticed Interruptible       |  | $                                           | 0.234 / kW     |                                          | $ | 190,148.61                                             |  | $                                                         | 203,161.11   |  | $ | 203,161.11  
|                            |  |                                             |                |                                          |   |                                                        |  |                                                           |              |  |   |             
|Total                       |  |                                             |                |                                          | $ | 6,571,504.45                                           |  | $                                                         | 6,904,023.74 |  | $ | 6,904,023.74



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Capitalized terms used herein have their respective meanings set forth in the Series 2004-1 Transition
Property Servicing Agreement.

In WITNESS HEREOF, the undersigned has duly executed and delivered this Monthly Servicers Certificate
this 8th day of January, 2009.



ONCOR ELECTRIC DELIVERY COMPANY LLC, as
ServicerBy:

/s/ John M. CaseyName:

John M. CaseyTitle:

Treasurer