NOTICE DATE: June 6, 2022

NOTICE TYPE: M-A060623-01 General

SHORT DESCRIPTION: ERCOT's Notification Listeners certificate renewal

INTENDED AUDIENCE: Market Participant personnel that receive notifications from ERCOT’s External Web Services on their listeners

DAYS AFFECTED: June 16, 2023

LONG DESCRIPTION: On June 16, 2023, ERCOT will replace the Notifications Public Key SSL certificate used by the Listeners that receive notifications from the External Web Services (EWS) with a new Notifications Public Key Secure Sockets Layer (SSL) certificate.

Impacts will only include those Market Participants that receive notifications on their Listeners and validating the request and certificate.

ACTION REQUIRED: Market Participants must download and install the following into their application's key store:

1.  The new ERCOT Notifications Public Key,

All Certificates, including the updated public key, are available for download on at

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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