NOTICE DATE: August 18, 2014 NOTICE TYPE: M-A081814-01 Unplanned Outage SHORT DESCRIPTION: Unplanned Outage of Identified ERCOT systems INTENDED AUDIENCE: ERCOT Market Participants DAY AFFECTED: 18:30 August 17, 2014 through 02:00 August 18, 2014 LONG DESCRIPTION: Beginning at 18:30 Sunday August 17, 2014, ERCOT performed un-planned maintenance on the Taylor Data Center environment. The following market facing applications may have experienced a service interruption between 18:30 August 17, 2014, and 02:00 August 18, 2014. * Market Management System User Interface * Outage Scheduler User Interface * External Web Services (EWS) * Market Participant notifications * Market Information System (MIS) * ERCOT.com * Net Dependable Capability and Reactive Capability Systems (NDCRC) ADDITIONAL INFORMATION: Additional information will be provided as necessary. CONTACT: If you have any questions, please contact the ERCOT HelpDesk. You may also call ERCOT HelpDesk phone number at (512) 248-6800 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. mm