NOTICE DATE: April 3, 2023

NOTICE TYPE: R-A040323-01 Unplanned Outage - ERCOT NAESB and ListServ

SHORT DESCRIPTION: ERCOT had an unplanned NAESB outage today from 10:33am - 10:43am.  ERCOT had an unplanned ListServ outage from 10:33am - 10:52am.

INTENDED AUDIENCE: Retail Market Participants

DAYS AFFECTED: 04/03/2023 10:33am - 10:52am

LONG DESCRIPTION: Market Participants may have experienced failure to connect errors during this time.  All data received has been processed as expected but Market Participants are encouraged to verify that transactions exchanged during that time were subsequently processed as expected.

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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