NOTICE DATE: February 26, 2010 NOTICE TYPE: W-A022610-01 Outage SHORT DESCRIPTION: Network Model Management System (NMMS) outage on February 26, 2010, has been resolved INTENDED AUDIENCE: TDSPs / TSPs DAY AFFECTED: February 26, 2010, 8:40 AM - 11:15 AM LONG DESCRIPTION: NMMS experienced an outage of the production system from 8:40 AM until 11:15 AM February 26, 2010. Technical support has resolved the issue, and NMMS is back in service. CONTACT: If you have any questions, please forward them to [log in to unmask]<mailto:[log in to unmask]> or 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 email at [log in to unmask]<mailto:[log in to unmask]>. 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<http://lists.ercot.com/>. je