NOTICE DATE: March 27, 2009 NOTICE TYPE: M-A032409-02 Reminder - Maintenance Outage - Retail/Wholesale SHORT DESCRIPTION: Scheduled Maintenance Outage INTENDED AUDIENCE: All Market Participants DAY AFFECTED: Sunday, March 29, 2009 from 8:00 AM through 8:00 PM LONG DESCRIPTION: ERCOT has scheduled a maintenance outage for Sunday, March 29, 2009 from 8:00 AM through 8:00 PM. ADDITIONAL INFORMATION: ERCOT will be using the maintenance outage to implement the SIRs on the attached spreadsheet. A total of eight (8) SIRs will be implemented. Of these, two (2) are market facing and six (6) are non-market facing. 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/> 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]<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/ DP From: ERCOT Client Relations Sent: Tuesday, March 24, 2009 5:02 PM 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-A032409-01 Initial - Maintenance Outage - Retail/Wholesale - Sunday, March 29, 2009 from 8:00 AM through 8:00 PM NOTICE DATE: March 24, 2009 NOTICE TYPE: M-A032409-01 Initial - Maintenance Outage - Retail/Wholesale SHORT DESCRIPTION: Scheduled Maintenance Outage INTENDED AUDIENCE: All Market Participants DAY AFFECTED: Sunday, March 29, 2009 from 8:00 AM through 8:00 PM LONG DESCRIPTION: ERCOT has scheduled a maintenance outage for Sunday, March 29, 2009 from 8:00 AM through 8:00 PM. ADDITIONAL INFORMATION: ERCOT will be using the maintenance outage to implement the SIRs on the attached spreadsheet. A total of eight (8) SIRs will be implemented. Of these, two (2) are market facing and six (6) are non-market facing. 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/> 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]<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/DP