The ERCOT planned maintenance outage completed at approximately 23:46 PM today, Sunday, May 2, 2010. All systems and transactions were reinstated at that time. The listed links on ERCOT.com https://pi.ercot.com/contentproxy/publicList issue was resolved at 12:15 AM this morning. As always, connectivity issues such as NAESB or TML can be reported to the ERCOT Help Desk at 512-248-6800 or [log in to unmask] or today to your ERCOT Account Manager. DH -----Original Message----- From: ERCOT Client Relations Sent: Sunday, May 02, 2010 11:57 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] Cc: [log in to unmask]; [log in to unmask]; [log in to unmask]; 1 ERCOT Client Service Reps Subject: M-A042110-03 COMPLETION : Maintenance Outage - Retail/Wholesale Sunday, May, 2, 2010 from 6:00 AM through 9:00 PM The ERCOT planned maintenance outage completed at approximately 23:46 PM today, Sunday, May 2, 2010. All systems are up and running except the ensuing listed links on ERCOT.com https://pi.ercot.com/contentproxy/publicList. ERCOT is working to resolve the issue. As always, connectivity issues such as NAESB or TML can be reported to the ERCOT Help Desk at 512-248-6800 or [log in to unmask]<mailto:[log in to unmask]<mailto:[log in to unmask]<mailto:[log in to unmask]<mailto:[log in to unmask]:[log in to unmask]:[log in to unmask]:[log in to unmask]>> or tomorrow to your ERCOT Account Manager. DH From: ERCOT Client Relations Sent: Friday, April 30, 2010 12:04 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] Cc: [log in to unmask]; [log in to unmask]; [log in to unmask]; 1 ERCOT Client Service Reps Subject: M-A042110-02 REMINDER: Maintenance Outage - Retail/Wholesale Sunday, May, 2, 2010 from 6:00 AM through 9:00 PM NOTICE DATE: April 30, 2010 NOTICE TYPE: M-A042110-02 REMINDER: Maintenance Outage - Retail/Wholesale SHORT DESCRIPTION: Scheduled Maintenance Outage INTENDED AUDIENCE: All Market Participants DAY AFFECTED: Sunday, May 2, 2010 from 6:00 AM through 21:00 LONG DESCRIPTION: ERCOT has scheduled a maintenance outage for Sunday, May 2, 2010 from 6:00 AM 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/> 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/>. DH/DP 127452 From: ERCOT Client Relations Sent: Wednesday, April 21, 2010 4:19 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] Cc: [log in to unmask]; [log in to unmask]; [log in to unmask]; 1 ERCOT Client Service Reps Subject: M-A042110-01 INITIAL: Maintenance Outage - Retail/Wholesale Sunday, May, 2, 2010 from 6:00 AM through 9:00 PM NOTICE DATE: April 21, 2010 NOTICE TYPE: M-A042110-01 INITIAL: Maintenance Outage - Retail/Wholesale SHORT DESCRIPTION: Scheduled Maintenance Outage INTENDED AUDIENCE: All Market Participants DAY AFFECTED: Sunday, May, 2, 2010 from 6:00 AM through 9:00 PM LONG DESCRIPTION: ERCOT has scheduled a maintenance outage for Sunday, May 2, 2010 from 6:00 AM through 9:00 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: * 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/>. DP/DH 127452