NOTICE DATE:  April 22, 2008

NOTICE TYPE:  M-A042208-01 Informational – Retail/Wholesale

SHORT DESCRIPTION:  ERCOT Texas Market Link (TML) applications intermittently unavailable.

INTENDED AUDIENCE: ERCOT Market Participants 

DAY AFFECTED:  April 22, 2008 from 6:55 AM to 7:25 AM

LONG DESCRIPTION:  Today, April 22, 2008 from 6:55 AM to 7:25 AM, ERCOT’s Texas Market Link (TML) applications were intermittently unavailable.  The following functionalities were impacted:

• Find ESIID
• Find Transactions
• Report Explorer
• Outage Scheduler
• MOSTML
• Eservice
• MarkeTrak
• MPIM
• Pi Report Download

This issue was caused by an unresponsive server.  The server was restarted and the impacted functionalities have been restored.

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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DP/DG