NOTICE DATE: February 20, 2009 NOTICE TYPE: R-A022009-01 Retail Processing SHORT DESCRIPTION: On Wednesday, February 18, 2009, ERCOT experienced an internal system processing issue affecting 867 and 814 transactions. INTENDED AUDIENCE: CRs and TDSPs DAY AFFECTED: Wednesday, February 18, 2009 from 5:30 AM to 8:30 AM LONG DESCRIPTION: On Wednesday February 18, 2009 from 5:30 AM to 8:30 AM, ERCOT experienced an internal system processing issue resulting in 18 files not processing. The affected 867 transactions were not processed into ERCOT's Settlement system and forwarding transactions were not sent to the appropriate Market Participants. The breakdown by transaction type is as follows: Transaction Type Count 814_01 52 814_04 32 814_16 11 814_24 6 814_25 9 862_02 11 867_03 29305 Total 29426 Reprocessing of the affected transactions was completed today. The reprocessed 867 files will attempt to load into the settlement system batch process tomorrow morning (Saturday, February 21, 2009). The root cause was ERCOT's Electronic Data Interchange (EDI) application experiencing a degradation in which processes were running long because of locks on the database. Additional details will be provided in the monthly ERCOT IT Incident Market Notice Summary. ADDITIONAL INFORMATION: ERCOT Retail Account Manager's will provide affected Market Participant's with a list of impacted transactions by the end of day Friday, February 20, 2009. 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]<mailto:[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/>. JR/DP