NOTICE DATE:  May 4, 2009

NOTICE TYPE:  R-A050409-01 Outage – Retail - MarkeTrak

INTENDED AUDIENCE: CRs and TDSPs

SHORT DESCRIPTION:  ERCOT will be taking an outage of the MarkeTrak Application GUI and API outside of the Service Level Agreement timeframe.

DAY AFFECTED:  May 5, 2009 from 7:00 PM to 9:00 PM

LONG DESCRIPTION:  ERCOT will be taking an outage of the MarkeTrak Application GUI and API outside of the Service Level Agreement timeframe. This outage will occur on May 5, 2009 from 7:00 PM until 9:00 PM to resolve an issue with the ‘Auto Closing’ from certain Pending Complete states.

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 [log in to unmask].

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JR/DP