***** EXTERNAL email. Please be cautious and evaluate before you click on links, open attachments, or provide credentials. ***** NOTICE DATE: February 16, 2017 NOTICE TYPE: M-A021617-01 Outage - Retail/Wholesale SHORT DESCRIPTION: Planned system maintenance with impacted services INTENDED AUDIENCE: ERCOT Market Participants DAY(S) AFFECTED: February 21, 2017 16:30 - 20:30, February 23, 2017 9:30 - 14:00, and February 23, 2017 15:30 - 17:30 LONG DESCRIPTION: ERCOT will be performing planned system maintenance of several databases and applications on February 21 and February 23, 2017. During the February 21, 2017 16:30 - 20:30 outage window, Market Participants may experience intermittent issues with the following services: ********* MPIM ********* The following ERCOT internet services: o Texas Renewables - www.texasrenewables.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.texasrenewables.com_&d=DwIFAg&c=trp9rTvIdyEWh1VWB5x8_2JiPaB5oGZOtWPDws2_VoY&r=ky8xwqCEaEK-OtnKIWCAiBPC_a8GTOjbp4l3MZPt-mY7OUWkwTDrOsWNSU8dwsXO&m=r77Taryg9qXKa2068kZpjGNJP2YR9pUvedIaoyFY32Y&s=QyCgFa_EalgXHMgKlmc9VH4G4RRfdPa6xvm500vxRl4&e= > o Retail Testing Website - etod.ercot.com<https://etod.ercot.com/> ********* Market Data Transparency (MDT) Web Services ********* Extract Subscriber ********* Net Dependable Capability and Reactive Capability (NDCRC) During the February 23, 2017 9:30 - 14:00 outage window, Market Participants may experience intermittent issues with the following services: ********* Report publishing to the ERCOT Market Information System (MIS) ********* Find ESIID During the February 23, 2017 15:30 - 17:30 outage window, Market Participants may experience intermittent issues with the following services: ********* Market submissions and requests via WebServices, Market Manager and Outage Scheduler ********* Report publishing to the ERCOT MIS ********* Downloading of extracts and reports from the MIS and WebServices ********* Net Dependable Capability and Reactive Capability (NDCRC) ********* Congestion Revenue Right (CRR) Market User Interface During this outage window, please use the following URLs to directly access the Market Manager and Outage Scheduler: * https://mis.ercot.com/mmsui/mmsui/displayTradesLanding.action * https://mis.ercot.com/osrui/osrui/Summary.action Note that the outage start times may be delayed depending on the current system conditions. ADDITIONAL INFORMATION: Reports will be rerun and reposted as applicable. The MIS Dashboards and ERCOT.com price displays will not be populated with data during the February 23, 2017 15:30 - 17:30 timeframe. 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 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. sa