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NOTICE DATE: October 16, 2020

NOTICE TYPE: M-A091720-03 Release-Retail

SHORT DESCRIPTION: Reminder - Retail Release October 2020

INTENDED AUDIENCE: ERCOT Market Participants

DAYS AFFECTED: October 18, 2020

LONG DESCRIPTION: ERCOT will be implementing some system changes in the production environment on Sunday, October 18, 2020 6:00 AM to 21:00 PM.

ADDITIONAL INFORMATION: ERCOT systems may experience intermittent service interruptions during the implementation period. The systems include, but are not limited to:

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 Market Information System (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 MIS
Find ESIID and Find Transaction will be unavailable

ADDITIONAL INFORMATION: Please review the ERCOT website for previous Market Notices related to this subject.

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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