NOTICE DATE: July 18, 2008 NOTICE TYPE: M-B071008-02 REMINDER - Outage - Retail/Wholesale CLASSIFICATION: Public SHORT DESCRIPTION: Scheduled Maintenance Outage INTENDED AUDIENCE: All Market Participants DAY AFFECTED: Sunday, July 20, 2008 from 8:00 AM through 8:00 PM LONG DESCRIPTION: ERCOT has scheduled a maintenance outage for Sunday, July 20, 2008 from 8:00 AM through 8:00 PM. 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/> MOS, Scheduling API, MOSTML, MOSPUBLIC, and Outage Scheduler will not be affected as there will be a DNS failover from Taylor to Austin. 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] 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 From: ERCOT Client Relations Sent: Thursday, July 10, 2008 2:01 PM To: [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-B071008-01 Outage - Retail/Wholesale - Maintenance outage scheduled for Sunday, July 20, 2008 from 8:00 AM through 8:00 PM NOTICE DATE: July 10, 2008 NOTICE TYPE: M-B071008-01 Outage - Retail/Wholesale CLASSIFICATION: Public SHORT DESCRIPTION: Scheduled Maintenance Outage INTENDED AUDIENCE: All Market Participants DAY AFFECTED: Sunday, July 20, 2008 from 8:00 AM through 8:00 PM LONG DESCRIPTION: ERCOT has scheduled a maintenance outage for Sunday, July 20, 2008 from 8:00 AM through 8:00 PM. 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/> MOS, Scheduling API, MOSTML, MOSPUBLIC, and Outage Scheduler will not be affected as there will be a DNS failover from Taylor to Austin. 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] 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