Meeting Summary - 05/12/2025 RTCB Market Trials Weekly Webex

Grid Monitor AI | Posted 05/12/2025

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Related meeting(s):

05/12/25 - ERCOT - RTCB Market Trials Weekly Webex

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Current focus is on QSE submission testing in May.
Testing includes submission of COPs, AS offers, virtual AS offers, and reporting any outages.
QSE telemetry checkout is being conducted to ensure proper telemetry point submission to ERCOT.
Phase two begins in early July, featuring open loop SCED tests using offers and submissions.
Phase two includes more in-depth QSE telemetry checks, scheduled tests, and responses.
Closed loop SCED tests planned for September and October, involving RTC offers and telemetry.
During closed loop tests, operations will run for 2-4 hours, twice a week, with outputs provided.
Day-ahead market submissions will be tested and evaluated.
Expected completion and readiness for live operation is aimed for early December.

The TAC approved the market trials plan in October 2024.
Six handbooks have been created to guide through market trials, available on the RTC+B homepage.
Technical details and FAQs for RTC+B are being compiled and posted, based on recurring questions.
A dual market cap is established for AS offers: capped at 2,000 MW in real-time market, 5,000 MW in DAM.
Handbooks for market submissions, such as submitting outages or telemetry, are available.
Ongoing focus is on connectivity and market submission testing for QSEs.
QSEs must ensure proper telemetry point modeling and request necessary additions to meet submission requirements.
Current phase involves sampling of resources to ensure data flow between ERCOT and QSEs.

Scoring for QSE scorecards will begin the week of May 19.
Scorecards will indicate: Yellow for partial submissions, Green for complete submissions, Red for no submissions.
Separate scorecards for submissions and telemetry setup and checkout.
Telemetry requires 95% of QSEs to have completed point checkouts.
Issues mentioned include user access problems due to incorrect data setup and rejected ECRS capability submission in COP.
Workarounds involve submitting a zero for ECRS capability.
AS only offer submission responses are not providing feedback notifications.
A system release is planned for May 28 to address these issues.

Discussion on how to submit charging and discharging values for TPO/ESR within the same hour, involving a continuous curve from negative to positive megawatts.
Clarification that for different hours, the submission would only use the negative or positive side of the curve depending on charging or discharging.
Confirmation that issues with negative value submissions can be reported for troubleshooting.
Questions on visibility of energy offers in MIS and where to confirm submissions.
Guidance on materials available for Single Model ESR COPs and SOC fields, referencing the Market Submission Validation Rules document.
Confirmation on telemetry submission details can be found on the MIS.
Discussion about the scorecard process for submission testing with reference to three scorecards: submission side of offers, telemetry points adding, and successful checkout.
Verification that existing known issues do not impede completion of the scorecard for submissions and telemetry checkouts.
Clarification on what transaction types are needed for QSE generation companies that are not ESRs.
Explanation of the weekly scorecard rolling process and result coverage in market trials meetings.
Specific submission requirements for different resource types like wind, battery, and solar units were clarified, stating that telemetry checks involve all units, whereas submission checks involve at least one from each type.