NOTICE DATE:  July 18, 2008

NOTICE TYPE:  M-B071808-01 – Outage - Retail

CLASSIFICATION: Public

SHORT DESCRIPTION:  ERCOT’s  Market Participant Identity Management (MPIM) application was unavailable today, July 18, 2008, from approximately 10:05 AM to 10:45 AM.

INTENDED AUDIENCE:  All Market Participants

DAY AFFECTED:  July 18, 2008 from approximately 10:05 AM to 10:45 AM

LONG DESCRIPTION:  ERCOT’s Market Participant Identity Management (MPIM) application was unavailable today, July 18, 2008, from approximately 10:05 AM to 10:45 AM. An error occurred during an approved production migration of another application and caused the MPIM application to become unavailable.  The change was rolled back and MPIM is now available.

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/DH