NOTICE DATE: October 23, 2025
NOTICE TYPE: M-A102325-01 Operations
SHORT DESCRIPTION: Joint RTCBTF/TWG Workshop for RTC+B Closed-Loop LFC Testing, October 27, 2025 1:00 - 3:00 PM (WebEx only)
INTENDED AUDIENCE: All Qualified Scheduling Entities (QSEs) with Resources
DAYS AFFECTED: October 27, 2025, 1:00 - 3:00 PM
LONG DESCRIPTION: ERCOT is hosting another joint Real-Time Co-optimization Plus Batteries Task Force (RTCBTF) and Technology Working Group (TWG) workshop to discuss details of the RTC+B Closed-Loop Load Frequency Control (LFC) testing that will occur on October 30, 2025. ERCOT has also reviewed and published the RTC+B Closed- Loop LFC Test Handbook in coordination with the RTCBTF. Similar to the prior workshop on September 10, 2025, the workshop is being conducted for QSE operators, IT staff, and vendors to review details of the handbook and address any questions regarding the test plan. This session will focus on timeline details and communications of information leading up to and through the LFC test.
The joint workshop will be a WebEx- only meeting on October 27, 2025, from 1:00 - 3:00 PM.
As a reminder, the Closed-Loop LFC test will require the ERCOT Control Room and all QSEs with Resources to follow RTC+B's Security-Constrained Economic Dispatch (RTC-SCED) as the production Dispatch Instructions for approximately two hours. This test will require accurate production-level telemetry for all Resources as well as Real-Time offer submission behavior to execute a successful and reliable test in order to ensure that frequency control can be maintained with the new systems ahead of the December 5, 2025 go-live of the RTC+B program.
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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