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NOTICE DATE:  July 25, 2018
NOTICE TYPE:  M-B072518-01 Outage - Retail/Wholesale
SHORT DESCRIPTION:  Planned system maintenance with impacted services
INTENDED AUDIENCE:  ERCOT Market Participants
DAYS AFFECTED:    July 31, 16:00 - 18:00, August 1, 2018 09:30 - 12:00, August 1, 2018 17:00 - 19:00
LONG DESCRIPTION:  ERCOT will be performing planned system maintenance of several databases and applications on July 31 - August 1, 2018.
During the July 31, 2018 16:00 - 18:00 outage window, all services available through the Market Information System (MIS) will be unavailable, including the following:
*         Market submissions and requests via External Web Services (EWS), Market Manager and Outage Scheduler
*         Report publishing to the ERCOT MIS
*         Downloading of extracts and reports from the MIS and EWS
*         Net Dependable Capability and Reactive Capability (NDCRC)
*         Congestion Revenue Right (CRR) Market User Interface
*         Find ESIID and Find Transaction
*         Market Participant Identity Manager (MPIM)
*         Market Data Transparency (MDT) Web Services
*         Extract Subscriber
*         Service Requests
During this outage window, please use the following URLs to directly access the Market Manager, CRR Market User Interface, and Outage Scheduler:

  *   https://mis.ercot.com/mmsui/mmsui/displayTradesLanding.action
  *   https://mis.ercot.com/osrui/osrui/Summary.action
  *   https://mis.ercot.com/crr/mui/ListAllUserMessage.do (For CRR Account Holders)
  *   https://mis.ercot.com/crr/mui/editSMPCreditLimit.do (For Counter-Parties)
During the August 1, 2018 09:30 - 12:00 outage window, Market Participants may experience intermittent issues with the following services:
*         Find ESIID
During the August 1, 2018 17:00 - 19:00 outage window, Market Participants may experience intermittent issues with the following services:
*         Market Participant Identity Manager (MPIM)
*         The following ERCOT internet services:

o   Texas Renewables - www.texasrenewables.com/<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.texasrenewables.com_&d=DwIFAg&c=trp9rTvIdyEWh1VWB5x8_2JiPaB5oGZOtWPDws2_VoY&r=nfPtykJirh6zkdj_SUrDhWk1u9ovsm1QJE50kwBFuP37cvRuStOq93TVB47vcl5Q&m=t0UJ0cTbNuGlLWwZ8stbglg_vjc3_ElFvR74au2G070&s=x8z7zqjLeWnVrCZ6qEOEQBZWr54LPfOHz1-VUGcI9co&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)

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 July 31, 2018 16:00 - 18:00 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.



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