NOTICE DATE:  July 11, 2008

NOTICE TYPE:  M-B061208-03 REMINDER: Release - Retail

CLASSIFICATION:  Public

SHORT DESCRIPTION:  ERCOT has a scheduled Retail release planned for 12:00 PM Saturday, July 12, 2008 through 12:00 AM Monday, July 14, 2008.

INTENDED AUDIENCE:  All Market Participants

DAY AFFECTED:  12:00 PM Saturday, July 12, 2008 through 12:00 AM Monday, July 14, 2008

LONG DESCRIPTION:  ERCOT has an on-cycle Retail release scheduled from 12:00 PM Saturday, July 12, 2008 through 12:00 AM Monday, July 14, 2008.  For reference, both Market impacting 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 both 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.

JR/JA

---

From: ERCOT Client Relations
Sent: Wednesday, July 02, 2008 10:57 AM
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-B061208-02 REMINDER Release - Retail: 12:00 PM Saturday, July 12, 2008 through 12:00 AM Monday, July 14, 2008

NOTICE DATE:  July 2, 2008

NOTICE TYPE:  M-B061208-02 REMINDER Release - Retail

CLASSIFICATION:  Public

SHORT DESCRIPTION:  ERCOT has a scheduled Retail release planned for 12:00 PM Saturday, July 12, 2008 through 12:00 AM Monday, July 14, 2008.

INTENDED AUDIENCE:  All Market Participants

DAY AFFECTED:  12:00 PM Saturday, July 12, 2008 through 12:00 AM Monday, July 14, 2008

LONG DESCRIPTION:  ERCOT has an on-cycle Retail release scheduled from 12:00 PM Saturday, July 12, 2008 through 12:00 AM Monday, July 14, 2008.  For reference, both Market impacting 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 both 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.

DH/JA

---

From: ERCOT Client Relations
Sent: Thursday, June 12, 2008 5:10 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-B061208-01 Release - Retail: 12:00 PM Saturday, July 12, 2008 through 12:00 AM Monday, July 14, 2008

NOTICE DATE:  June 12, 2008

NOTICE TYPE:  M-B061208-01 Release - Retail

CLASSIFICATION:  Public

SHORT DESCRIPTION:  ERCOT has a scheduled Retail release planned for 12:00 PM Saturday, July 12^, 2008 through 12:00 AM Monday, July 14, 2008.

INTENDED AUDIENCE:  All Market Participants

DAY AFFECTED:  12:00 PM Saturday, July 12, 2008 through 12:00 AM Monday, July 14, 2008

LONG DESCRIPTION:  ERCOT has an on-cycle Retail release scheduled from 12:00 PM Saturday, July 12, 2008 through 12:00 AM Monday, July 14, 2008.  For reference, both Market impacting 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 both 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/CD