***** EXTERNAL email. Please be cautious and evaluate before you click on links, open attachments, or provide credentials. ***** NOTICE DATE: April 4, 2018 NOTICE TYPE: W-B040418-01 Operations SHORT DESCRIPTION: Planned Maintenance Outage INTENDED AUDIENCE: ERCOT Wide Area Network Participants (QSEs and TSPs) DAY AFFECTED: April 11, 2018 09:00 - 15:00 LONG DESCRIPTION: ERCOT will be performing infrastructure hardware patching at our Bastrop, Texas facility on Wednesday, April 11, 2018 09:00 - 15:00. During the maintenance window, the following system will be impacted: * ICCP (Telemetry data) out of Bastrop will be unavailable but redundancy is available in Taylor. 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 email at [log in to unmask]<mailto:[log in to unmask]>. If you are receiving email from a public 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