NOTICE DATE: October 12, 2009 NOTICE TYPE: M-C101209-01 Outage - EMS SHORT DESCRIPTION: EMS outage October 12, 2009 INTENDED AUDIENCE: ERCOT Market Participants DAY AFFECTED: October 12, 2009, 10:04 AM - 10:37 AM LONG DESCRIPTION: The ERCOT Energy Management System (EMS) experienced an outage on Monday, October 12, 2009, from 10:04 AM until 10:37 AM. The EMS servers were rebooted to restore the system, but the root cause has not yet been determined. 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]<blocked::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/>. dh