The ERCOT scheduled maintenance outage completed at approximately 19:25 today, Sunday, March 13, 2011.  All systems and transaction processing were reinstated at that time.



As always, connectivity issues such as NAESB or TML can be reported to the ERCOT Help Desk at 512-248-6800, [log in to unmask]<mailto:[log in to unmask]> or tomorrow to your ERCOT Account Manager.

JR
219502

From: ERCOT Client Services
Sent: Friday, March 11, 2011 10:04 AM
To: [log in to unmask]; [log in to unmask]; [log in to unmask]; [log in to unmask]; [log in to unmask]; [log in to unmask]; [log in to unmask]
Cc: [log in to unmask]; [log in to unmask]; [log in to unmask]; 1 ERCOT Client Service Reps
Subject: M-A030911-02 REMINDER: Maintenance Outage - Retail/Wholesale - Sunday, March 13, 2011 from 06:00 through 21:00

NOTICE DATE:  March 11, 2011
NOTICE TYPE:  M-A030911-02 REMINDER: Maintenance Outage – Retail/Wholesale
SHORT DESCRIPTION:  Scheduled Maintenance Outage
INTENDED AUDIENCE:  All Market Participants
DAY AFFECTED:  Sunday, March 13, 2011 from 06:00 through 21:00
LONG DESCRIPTION:  ERCOT has scheduled a maintenance outage for Sunday, March 13, 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:
    *   Find ESI ID
    *   Find Transaction
    *   Submit Transactions
    *   USA Functionalities
    *   Report Explorer, including
       *   Reports
       *   Extracts
       *   Invoices
       *   Settlement Statements
    *   Extract Scheduler
    *   Web Services Data Requests

 *   ERCOT Internet Services will NOT be available, including but not limited to:
    *   ERCOT.com – www.ercot.com<http://www.ercot.com>
    *   MarkeTrak - https://marketrak.ercot.com:8443/tmtrack.dll
    *   TCR - https://tcr.ercot.com<https://tcr.ercot.com/>
    *   Texas Renewables – www.texasrenewables.com<http://www.texasrenewables.com/>
 *   Components of the MIS will NOT be available including:
    *   Retail Applications


 *   Components of the MIS will intermittently NOT be available including:
    *   Downloading of extracts and reports


 *   Components of the External Web Services (EWS) will intermittently NOT be available including:
    *   GetReport

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/>.


JR/JA
219502

From: ERCOT Client Services
Sent: Wednesday, March 09, 2011 11:50 AM
To: [log in to unmask]; [log in to unmask]; [log in to unmask]; [log in to unmask]; [log in to unmask]; [log in to unmask]; [log in to unmask]
Cc: [log in to unmask]; [log in to unmask]; [log in to unmask]; 1 ERCOT Client Service Reps
Subject: M-A030911-01 INITIAL: Maintenance Outage - Retail/Wholesale - Sunday, March 13, 2011 from 06:00 through 21:00

NOTICE DATE:  March 9, 2011
NOTICE TYPE:  M-A030911-01 INITIAL: Maintenance Outage – Retail/Wholesale
SHORT DESCRIPTION:  Scheduled Maintenance Outage
INTENDED AUDIENCE:  All Market Participants
DAY AFFECTED:  Sunday, March 13, 2011 from 06:00 through 21:00
LONG DESCRIPTION:  ERCOT has scheduled a maintenance outage for Sunday, March 13, 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:
    *   Find ESI ID
    *   Find Transaction
    *   Submit Transactions
    *   USA Functionalities
    *   Report Explorer, including
       *   Reports
       *   Extracts
       *   Invoices
       *   Settlement Statements
    *   Extract Scheduler
    *   Web Services Data Requests

 *   ERCOT Internet Services will NOT be available, including but not limited to:
    *   ERCOT.com – www.ercot.com<http://www.ercot.com>
    *   MarkeTrak - https://marketrak.ercot.com:8443/tmtrack.dll
    *   TCR - https://tcr.ercot.com<https://tcr.ercot.com/>
    *   Texas Renewables – www.texasrenewables.com<http://www.texasrenewables.com/>
 *   Components of the MIS will NOT be available including:
    *   Retail Applications


 *   Components of the MIS will intermittently NOT be available including:
    *   Downloading of extracts and reports


 *   Components of the External Web Services (EWS) will intermittently NOT be available including:
    *   GetReport

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/>.


JR/DG
219502

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