NOTICE DATE: November 8, 2024
NOTICE TYPE: M-A090924-04 General
SHORT DESCRIPTION: Reminder - Infrastructure Changes to Support OpenSSL 3.0 on ERCOT's External Web Services API
INTENDED AUDIENCE: Market Participant personnel that administer programmatic access to ERCOT’s production and testing environments and User Security Administrators (USAs)
DAYS AFFECTED: January 7, 2025
LONG DESCRIPTION: Due to changes in security industry standards, ERCOT is upgrading the infrastructure used to support all programmatic access to ERCOT’s Production External Web Services APIs (MISAPI.ERCOT.COM and API.WAN.ERCOT.COM). ERCOT will be updating the version of OpenSSL used to secure the communication between Market Participants (MPs) and ERCOT on these APIs.
On January 7, 2025, ERCOT will update the Production External Web Services API infrastructure, enabling OpenSSL 3.0.
ERCOT’s Production APIs can be accessed through the following URLs:
Note that this effort causes no impacts to MPs that access the Market Information System (MIS) or other ERCOT websites through a web browser
ACTION REQUIRED: MP personnel that administer programmatic access to ERCOT’s production and testing environments will need to ensure that MP systems used in communication with ERCOT External Web Services APIs support the use of OpenSSL 3.0. Failure to make the required changes on the MP side can cause connection errors and will prevent access to ERCOT External Web Services API’s.
MPs will still need to be able to support the existing configuration of the APIs until this change has been implemented.
ADDITIONAL INFORMATION: On October 24, 2024, ERCOT updated the MOTE/RMTE External Web Services API infrastructure, enabling OpenSSL 3.0. ERCOT made these changes available to the test environments to ensure that MPs have adequate time to test this new configuration.
ERCOT’s MOTE and RMTE can be accessed through the following URLs:
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 ClientServices@ercot.com.
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