NOTICE DATE: August 29, 2008 NOTICE TYPE: M-B082908-01 Outage SHORT DESCRIPTION: MOSTML and MOSPUBLIC outage occurred on August 29, 2008 INTENDED AUDIENCE: All Market Participants DAY AFFECTED: August 29, 2008 LONG DESCRIPTION: ERCOT experienced an outage of MOSTML and MOSPUBLIC from approximately 11:00 AM to 11:15 AM on August 29, 2008. The outage was a result of a site failover which was performed in anticipation and preparation for hurricane Gustav's impact on the Texas Gulf Coast. 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/> . yl