NOTICE DATE:  November 10, 2011
NOTICE TYPE:  M-A111011-01 INITIAL: Maintenance Outage – Retail/Wholesale
SHORT DESCRIPTION:  Scheduled Maintenance Outage
INTENDED AUDIENCE:  All Market Participants
DAY AFFECTED:  Sunday, November 20, 2011 from 06:00 through 21:00
LONG DESCRIPTION:  ERCOT has scheduled a maintenance outage for Sunday, November 20, 2011 from 06:00 through 21:00.
ADDITIONAL INFORMATION:  During the outage the following functions will be affected:
•       Market Participants utilizing NAESB to send/receive transactions to/from ERCOT will NOT be able to send/receive transactions to/from ERCOT during the outage. This includes all retail transactions.
•       867 transactions will NOT be forwarded during the outage.
•       997 Functional Acknowledgements will NOT be sent during the outage.
•       Components of the TML and Commercial API will NOT be available including:
o       Find ESI ID
o       Find Transaction
o       Submit Transactions
o       USA Functionalities
o       Report Explorer, including
•       Reports
•       Extracts
•       Invoices
•       Settlement Statements
o       Extract Scheduler
o       Web Services Data Requests
•       ERCOT Internet Services will NOT be available, including but not limited to:
o       ERCOT.com – www.ercot.com<http://www.ercot.com>
o       MarkeTrak - https://marketrak.ercot.com:8443/tmtrack.dll
o       TCR - https://tcr.ercot.com<https://tcr.ercot.com/>
o       Texas Renewables – www.texasrenewables.com<http://www.texasrenewables.com/>
•       Components of the MIS will NOT be available including:
o       Retail Applications

•       Components of the MIS will intermittently NOT be available including:
o       Downloading of extracts and reports
o       Current Day Reports without retry functionality may not be rerun for the missed postings during the outage time.
o       MIS Secure area dashboards will be intermittently unavailable
o       www.ercot.com pricing and load data displays will be intermittently unavailable
o       USA Functionalities
o       Extract Subscriber
o       Market Data Transparency
o       During this outage, 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

•       Components of the External Web Services (EWS) will intermittently NOT be available
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]<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/>.

DH/DP
277470

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