UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: April 3, 2012
Accession Number: 0001193125-12-134628
Submission Type: POS AM
CIK: 0001263050
Company Name: Texas Competitive Electric Holdings CO LLC
File Number: 333-157057
CIK: 0001445049
Company Name: Energy Future Competitive Holdings CO
File Number: 333-157057-44
CIK: 0001445347
Company Name: Generation MT Co LLC
File Number: 333-157057-43
CIK: 0001445349
Company Name: Decordova Power Co LLC
File Number: 333-157057-41
CIK: 0001445350
Company Name: Collin Power Co LLC
File Number: 333-157057-40
CIK: 0001445351
Company Name: Big Brown Power Co LLC
File Number: 333-157057-39
CIK: 0001445352
Company Name: Big Brown Lignite Co LLC
File Number: 333-157057-38
CIK: 0001445353
Company Name: Big Brown 3 Power Co LLC
File Number: 333-157057-37
CIK: 0001445377
Company Name: Morgan Creek 7 Power Co LLC
File Number: 333-157057-36
CIK: 0001445378
Company Name: Monticello 4 Power Co LLC
File Number: 333-157057-35
CIK: 0001445379
Company Name: Martin Lake 4 Power Co LLC
File Number: 333-157057-34
CIK: 0001445360
Company Name: Valley Power Co LLC
File Number: 333-157057-32
CIK: 0001445361
Company Name: Valley NG Power Co LLC
File Number: 333-157057-31
CIK: 0001445362
Company Name: 4Change Energy Co
File Number: 333-157057-30
CIK: 0001445363
Company Name: TXU SESCO Co LLC
File Number: 333-157057-29
CIK: 0001445364
Company Name: TXU SEM Co
File Number: 333-157057-28
CIK: 0001445365
Company Name: TXU Retail Services Co
File Number: 333-157057-27
CIK: 0001445366
Company Name: TXU Energy Solutions Co LLC
File Number: 333-157057-26
CIK: 0001445368
Company Name: TXU Energy Retail Co LLC
File Number: 333-157057-24
CIK: 0001445370
Company Name: Tradinghouse Power Co LLC
File Number: 333-157057-22
CIK: 0001445371
Company Name: Tradinghouse 3 & 4 Power Co LLC
File Number: 333-157057-21
CIK: 0001445372
Company Name: Sandow Power Co LLC
File Number: 333-157057-20
CIK: 0001445373
Company Name: Oak Grove Power Co LLC
File Number: 333-157057-19
CIK: 0001445374
Company Name: Oak Grove Mining Co LLC
File Number: 333-157057-18
CIK: 0001445375
Company Name: Oak Grove Management Co LLC
File Number: 333-157057-17
CIK: 0001445376
Company Name: NCA Resources Development Co LLC
File Number: 333-157057-16
CIK: 0001445380
Company Name: Luminant Renewables Co LLC
File Number: 333-157057-15
CIK: 0001445383
Company Name: Luminant Mining Co LLC
File Number: 333-157057-12
CIK: 0001445385
Company Name: Luminant Mineral Development Co LLC
File Number: 333-157057-11
CIK: 0001445386
Company Name: Luminant Holding Co LLC
File Number: 333-157057-10
CIK: 0001445387
Company Name: Luminant Generation Co LLC
File Number: 333-157057-09
CIK: 0001445391
Company Name: Luminant ET Services Co
File Number: 333-157057-08
CIK: 0001445392
Company Name: Luminant Energy Trading California Co
File Number: 333-157057-07
CIK: 0001445394
Company Name: Luminant Energy Co LLC
File Number: 333-157057-05
CIK: 0001445395
Company Name: Luminant Big Brown Mining Co LLC
File Number: 333-157057-04
CIK: 0001445396
Company Name: Lake Creek 3 Power Co LLC
File Number: 333-157057-03
CIK: 0001445397
Company Name: Generation SVC Co
File Number: 333-157057-02
CIK: 0001445553
Company Name: TCEH Finance, Inc.
File Number: 333-157057-01