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NOTICE DATE: January 4, 2021

NOTICE TYPE: M-B123020-02 Operations

SHORT DESCRIPTION: Update - MOTE and RMTE External Web Services Secure Sockets Layer certificate renewal.

INTENDED AUDIENCE: Market Participant personnel that administer programmatic access to ERCOT’s MOTE and RMTE

DAY AFFECTED: January 08, 2021

LONG DESCRIPTION: On January 08, 2021, ERCOT will replace the DigiCert MOTE API Public Key SSL certificate used by the Market Operations Test Environment (MOTE) and Retail Market Test Environment (RMTE) External Web Services (EWS) with a new GlobalSign MOTE API Public Key Secure Sockets Layer (SSL) certificate.

MOTE/RMTE URLs affected by this change:


Note: there is no impact to Market Participants who access secure ERCOT websites through a web browser.

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

1.) the new MOTE/RMTE API Public Key,

2.) the GlobalSign RSA Organization Validation CA - 2018 Intermediate SSL Certificate, and

3.) the GlobalSign Root R3 SSL Certificate

All Certificates, including the updated public key, are available for download on ERCOT.com at http://www.ercot.com/services/mdt/webservices/.

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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