NOTICE DATE:  June 3, 2008

NOTICE TYPE:  M-A060308-01 - Outage – Retail/Wholesale

CLASSIFICATION: Public

SHORT DESCRIPTION:  Unplanned Customer Registration Database Outage

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  Today, Tuesday, June 3, 2008 from 1:00 PM to 1:30 PM 

LONG DESCRIPTION:  ERCOT will experience an unplanned outage of the Customer Registration Database today, Tuesday, June 3, 2008 from approximately 1:00 PM to 1:30 PM.   

ADDITIONAL INFORMATION:  During the outage the following functions will be affected:

• Market Participants utilizing NAESB to send/receive transactions to/from ERCOT WILL be able to send/receive transactions to/from ERCOT during the outage.  This includes all retail transactions.
• 867 Transactions WILL be forwarded during the outage.
• 997 Functional Acknowledgements WILL 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 be available:

• 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/SH