8/24/22, 4:21 PM

M-B082422-01 Planned Maintenance Outage - Retail

NOTICE DATE: August 24, 2022

NOTICE TYPE: M-B082422-01 Outage Retail/Wholesale

SHORT DESCRIPTION: Planned Maintenance Outage - Retail

INTENDED AUDIENCE: All Market Participants

DAYS AFFECTED: Sunday, September 11, 2022 from 06:00 to 21:00

LONG DESCRIPTION: ERCOT will be performing planned maintenance on Sunday, September 11, 2022 from 06:00 to 21:00.  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

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