NOTICE DATE:  April 19, 2013

NOTICE TYPE:  M-B032113-03 Release – Retail

SHORT DESCRIPTION:  REMINDER - On-cycle Retail Release on 17:00 Saturday, April 20, 2013 through 00:00 Monday, April 22, 2013

INTENDED AUDIENCE:  All Market Participants

DAYS AFFECTED: 17:00 Saturday, April 20, 2013 through 00:00 Monday, April 22, 2013

LONG DESCRIPTION: ERCOT has an on-cycle Retail Release planned for 17:00 Saturday, April 20, 2013 through 00:00 Monday, April 22, 2013

ERCOT will implement an upgrade to Retail databases.

ADDITIONAL INFORMATION: During this 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.
• 867 Transactions will NOT be forwarded during the outage.
• 997 Functional Acknowledgements will NOT be sent during the outage.
• MarkeTrak will be unavailable for the duration of the outage.
• Retail components of the MIS and the Retail API will not be available.
• MPIM will not be available.
• eService application will be unavailable on the Market Information System (MIS).

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].

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