The outage for the May 10, 2008 Planned Retail Release for ERCOT completed at approximately 4:30 AM today, Sunday, May 11, 2008.  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 or [log in to unmask] .

JA

---

From: ERCOT Client Relations
Sent: Friday, May 09, 2008 3:11 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-A041008-03 - REMINDER - Release - Retail: 12:00 PM Saturday, May 10, 2008 through 12:00 AM Monday, May 12, 2008

NOTICE DATE:  May 9, 2008

NOTICE TYPE:  M-A041008-03 - REMINDER - Release - Retail

CLASSIFICATION:  Public

SHORT DESCRIPTION:  ERCOT has a scheduled Retail Release beginning 12:00 PM Saturday, May 10, 2008 through 12:00 AM Monday, May 12, 2008.

INTENDED AUDIENCE:  All Market Participants

DAY AFFECTED:  12:00 PM Saturday, May 10, 2008 through 12:00 AM Monday, May 12, 2008

LONG DESCRIPTION:  ERCOT has an on-cycle Retail release scheduled from 12:00 PM Saturday, May 10, 2008 through 12:00 AM Monday, May 12, 2008.  For reference, Internal ERCOT SIRs with no Market impact are included on the attached document.  There are no Market Impacting SIRs with this release. 

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
• MarkeTrak - https://marketrak.ercot.com:8443/tmtrack.dll?
• TCR - https://tcr.ercot.com
• Texas Renewables – 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

JA/DP

---

From: ERCOT Client Relations
Sent: Monday, April 28, 2008 3:36 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-A041008-02 - REMINDER - Release - Retail: 12:00 PM Saturday, May 10, 2008 through 12:00 AM Monday, May 12, 2008

NOTICE DATE:  April 28, 2008

NOTICE TYPE:  M-A041008-02 - REMINDER - Release - Retail

CLASSIFICATION:  Public

SHORT DESCRIPTION:  ERCOT has a scheduled Retail Release beginning 12:00 PM Saturday, May 10, 2008 through 12:00 AM Monday, May 12, 2008.

INTENDED AUDIENCE:  All Market Participants

DAY AFFECTED:  12:00 PM Saturday, May 10, 2008 through 12:00 AM Monday, May 12, 2008

LONG DESCRIPTION:  ERCOT has an on-cycle Retail release scheduled from 12:00 PM Saturday, May 10, 2008 through 12:00 AM Monday, May 12, 2008.  For reference, Internal ERCOT SIRs with no Market impact are included on the attached document.  There are no Market Impacting SIRs with this release. 

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
• MarkeTrak - https://marketrak.ercot.com:8443/tmtrack.dll?
• TCR - https://tcr.ercot.com
• Texas Renewables – 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

JA/TR

---

From: ERCOT Client Relations
Sent: Thursday, April 10, 2008 2:24 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-A041008-01 Release - Retail: 12:00 PM Saturday, May 10, 2008 through 12:00 AM Monday, May 12, 2008

NOTICE DATE:  April 10, 2008

NOTICE TYPE:  M-A041008-01 Release - Retail

CLASSIFICATION:  Public

SHORT DESCRIPTION:  ERCOT has a scheduled Retail Release beginning 12:00 PM Saturday, May 10, 2008 through 12:00 AM Monday, May 12, 2008.

INTENDED AUDIENCE:  All Market Participants

DAY AFFECTED:  12:00 PM Saturday, May 10, 2008 through 12:00 AM Monday, May 12, 2008

LONG DESCRIPTION: ERCOT has an on-cycle Retail release scheduled from 12:00 PM Saturday, May 10, 2008 through 12:00 AM Monday, May 12, 2008.  For reference, both Market Impact SIRs and Internal ERCOT SIRs with no Market impact are included on the attached document.

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
• MarkeTrak - https://marketrak.ercot.com:8443/tmtrack.dll?
• TCR - https://tcr.ercot.com
• Texas Renewables – 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.

TR/JA