NOTICE DATE: December 3, 2012 NOTICE TYPE: W-A120312-01 Outage - Wholesale SHORT DESCRIPTION: Unplanned outage of ERCOT Credit Monitoring and Management System INTENDED AUDIENCE: Counter-Parties and QSEs DAY AFFECTED: December 3, 2012 LONG DESCRIPTION: ERCOT experienced an unplanned outage due to a hardware failure which impacted the generating and posting of the Credit Monitoring and Management (CMM) Reports to the Market Information System (MIS) Certified Area beginning at 01:08 CPT on December 3, 2012. ERCOT expects to post the CMM Reports around 16:00 CPT today. Due to the delay in the posting of credit reports, ERCOT will extend the time for posting collateral from 12:00 to 17:00 CPT today. CONTACT: If you have any questions, please contact Vanessa Spells at [log in to unmask]<mailto:[log in to unmask]>, (512) 225-7014. You can also contact your ERCOT Account Manager, [log in to unmask]<mailto:[log in to unmask]> or the general ERCOT Client Services phone number, (512) 248-3900. If you are receiving email 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. dh