NOTICE DATE: January 22, 2024

NOTICE TYPE: R-A010524-02 Outage Retail/Wholesale

SHORT DESCRIPTION: Planned Maintenance Outage - Retail

INTENDED AUDIENCE: All Market Participants

DAYS AFFECTED: Saturday, January 27, 2024 19:00 through Sunday, January 28, 2024 23:59

LONG DESCRIPTION: ERCOT will be performing planned maintenance on Saturday, January 27, 2024 19:00 through Sunday, January 28, 2024 23:59.  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.
• MarkeTrak will be unavailable for the duration of the outage.
• Retail Application components of the MIS and the Retail API will be unavailable.
• Retail Reports and Extracts may be impacted during the outage timeframe.
• eService application will be unavailable on the Market Information System (MIS).
• Find ESIID and Find Transaction will be unavailable.
• The ListServ GUI may be unavailable and emails sent to the distribution lists could be delayed.

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 email at [log in to unmask].

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dg

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