NOTICE DATE:  September 29, 2009

NOTICE TYPE:  M-A092909-01 OUTAGE – Retail/Wholesale

SHORT DESCRIPTION:  ERCOT experienced an Enterprise Application Integration (EAI) failure, causing several applications to become unresponsive from 1:00 PM to 1:35 PM September 29, 2009

INTENDED AUDIENCE:  CRs, QSEs and TDSPs

DAY AFFECTED:  September 29, 2009 from 1:00 PM to 1:35 PM

LONG DESCRIPTION:  ERCOT experienced an Enterprise Application Integration (EAI) failure, causing the following applications to become unresponsive from 1:00 PM to 1:35 PM on September 29, 2009:

· MarkeTrak API

· Market Data Transparency (MDT)

· Find ESIID

· Find Transaction

· Retail API

ADDITIONAL INFORMATION:  This outage was the result of a server within EAI becoming unresponsive. The server was restarted, returning functionality to the applications.

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].

If you are receiving e-mail from an ERCOT distribution list that you no longer wish to receive, please follow this link in order to unsubscribe from this list: http://lists.ercot.com.

DP/JR