NOTICE DATE: December 7, 2009 NOTICE TYPE: R-C120709-01 Outage Notice - Retail Processing SHORT DESCRIPTION: ERCOT experienced an outage of the Electronic Data Interchange (EDI) servers from 3:09 PM to 4:53 PM on December 7, 2009. INTENDED AUDIENCE: LSEs and TDSPs DAY AFFECTED: December 7, 2009 from 3:09 PM 4:53 PM LONG DESCRIPTION: ERCOT experienced an outage of the Electronic Data Interchange (EDI) servers from 3:09 PM to 4:53 PM on December 7, 2009. ADDITIONAL INFORMATION: The root cause is currently under investigation. 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/DH