NOTICE DATE: April 9, 2008 NOTICE TYPE: M-A040908-01 Outage - Retail/Wholesale CLASSIFICATION: Public SHORT DESCRIPTION: ERCOT had an unplanned outage of the Enterprise Application Integration (EAI) system. INTENDED AUDIENCE: All Market Participants DAY AFFECTED: April 8, 2008 from 4:50 PM to 5:35 PM LONG DESCRIPTION: ERCOT experienced an unplanned outage of the Enterprise Application Integration (EAI) system yesterday, Tuesday, April 8, 2008, from 4:50 PM to 5:35 PM. The systems and processes affected were: * Retail transaction processing * Texas Market Link (TML) ESI ID lookup functionality * TML Report Explorer * MarkeTrak API * TML transaction services * TML Scheduling Extracts and Data Requests During this outage, ERCOT was not processing inbound Retail transactions. All backlogged transactions have processed. This outage was the result of a data storage limitation. The data store file was compressed and processing resumed. 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 <http://lists.ercot.com/> . DP/TR