NOTICE DATE:  March 12, 2008          

NOTICE TYPE:  R-B031208-01 Outage - Retail:  MarkeTrak       

CLASSIFICATION:  Public

SHORT DESCRIPTION:  ERCOT will take an emergency outage of the MarkeTrak
application this evening.        

INTENDED AUDIENCE:  CRs and TDSPs      

DAY AFFECTED:  Wednesday, March 12, 2008 from 7:00 PM to 10:00 PM


LONG DESCRIPTION:  In an attempt to improve the performance degradation
issues with the MarkeTrak application, ERCOT will take an emergency
outage of the MarkeTrak application this evening, Wednesday, March 12,
2008 from 7:00 PM to 10:00 PM.  During this outage, SIR 11809 will be
implemented.      

CONTACT:  If you have any questions, please contact your ERCOT Account
Manager. You may also call the general ERCOT Client Services phone
number at (512) 248-3900 or contact ERCOT Client Services via e-mail at
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TR/JA