
Update on RTC+B Task Force Issues and Market Trials
Stay informed with updates on RTC+B Task Force issues such as NPRRs, market trials, and readiness training modules, including a detailed outline of upcoming activities and timeline of NPRRs set for PUCT approval. Get insights into ongoing discussions, protocol evaluations, and key stakeholder meetings leading up to the planned Go-Live date.
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Presentation Transcript
RTC+B Task Force Update Matt Mereness RTCBTF May 21, 2025
Outline - Discussion today: - Update on RTCBTF Issues List - Update on NPRRs - Market Trials Update - Rest of Today s Agenda 2 2 Public
RTCBTF Issues List Red boxes are NPRR1268, 1269, 1270 (April Board) Blue Box is evaluation of State of Charge and AS Duration (target June Board) Protocol needed? Yes Yes Yes Yes Issue to resolve Approval PUCT PUCT PUCT PUCT Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Parameters for Ancillary Service proxy offers (values for the parameters) Scaling Factor Values for RegUp/RegDown (ie, ramp sharing as values, dynamic or static?) ASDCs for use in Reliability Unit Commitment (RUC) studies (values for parameters) RTC SOC duration parameter discussion BOARD PUC BOARD PUC BOARD PUC BOARD PUC RTC Simulator Analysis for periodic analysis comparing RTC and the current ORDC design KP 1.1(8) - Historical Operating Days identified by RTCBTF - Additional review of transmission constraint max. shadow price values (Sec 22/per NPRR1211) - Review of AS Demand Curve in context of current policy - Consider AS Indifference TBD TBD Market Trials Clean-up Revision Requests to address as-builts and clarifications, as needed Market Readiness - Release Market Trials Sequence and Potential Dates (May 2024) - RTC+B Technical Workshops and release interface specifications (May-June 2024) Explanation of ICCP Changes (Abhi Gari Masanna- May RTCBTF) Explanation of Market Submission (Nathan Smith- August RTCBTF) - Release and review Market Trials Plan with RTCBTF (TAC endorsed October 2024) - Execute QSE Attestation (completed August 2024) - Announce Planned Go-Live Date (September 2024) - Outline of Readiness Training modules - Delivery of Training modules to RTCBTF Training page - Market Trials Handbooks for 5/5/25 Trials (Market Submission and Telemetry Check-out) - Market Trials Handbook for 7/7/25 Trials (OpenLoop SCED and QSE Telemetry Testing) - Market Trials Handbook for 9/2/25 Trials (Closed-Loop Test and Day-Ahead Market) - Annual Operations Training Seminar (6-weeks) - Go-Live Transition Plan - Any protocol and/or PUCT waivers needed for market trials and/or transition to Go-Live - RTCBTF issues- a. Operation Procedures (e.g., removing SASM and HASL/LASL), note to include any needed discussion on triggers for initiating off-cycle SCED execution, b. Business Practice Manuals (e.g., changes to COP and telemetry), c. Market trials/training/annual seminar engagement (release plans/dates for market trials), d. Any details MPs need for designing their control systems Yes PUCT Market Trials No TAC Complete Complete earlier earlier 3 Public
Summary and Timeline of NPRRs NPRRs set for PUCT May 15 Open Meeting (PUCT approved) NPRR1268 for ASDC Modifications (IMM sponsor) NPRR1269 for 3 Parameter/Policy Changes (ERCOT sponsor) NPRR1270 for AS Qualification details (ERCOT sponsor) AS Duration / State of Charge (NPRR1282 / NOGRR277) Began discussion March 25 and targeting June Board NPRR1282 PRS Approved NOGRR277 ROS email vote in flight Final Clarifying NPRR Begin discussion June 18 today and target Sep Board Review today for any issues ERCOT to submit NPRR by end of week for extended review at subsequent RTCBTF meetings Remaining Stakeholder path to Board Meetings before Go-Live: PRS May 14 > TAC May 28 > Board June 24 PRS Aug 13 > TAC Aug 28 > Board Sep 23 4 4 Public
Sequence and Dates for Market Trials to Go-Live 30-day Market Notice 11/5/25 March/April Start 5/5/25 Start 7/7/25 Start 9/2/25 Go-Live 12/5/25* 2025 May 2025 June 2025 July 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Telemetry Points added Prod EMS model. QSE/Vendor Submission Sandbox and QSE Scorecards & Exit Criteria for each Trial Phase Open-loop RTC SCED (QSE offers, SCED non- binding award/dispatch) RTC QSE Submission Testing (Submit COP, RT AS Offers, DAM Virtual AS, Outages for ESRs) Ongoing Open-Loop & Periodic Closed-loop SCED/LFC (QSE RTC offers and telemetry to support closed-loop frequency control test 2-3 tests of 2-4 hour durations) Transition to Go-Live Upon completion of testing, confirmation of ERCOT and market readiness for Go-Live. QSE Telemetry Tests (Individual QSE to follow UDSP and support new ramp rate and ESR telemetry) RTC QSE Telemetry Check-out (QSEs add/verify new telemetry points for UDSP, New ramp rates, ESR telemetry) Day-Ahead Market (Non-binding DAM using QSE offers for at least 2 tests) * Go-Live date reflects 12/5/2025 as first Operating Day where 12/4/2025 is planned software migration. 5 Public
Other Updates - Readiness engagement update: - Developed new folders on RTCBTF home page (done) - Market Trials folder: Handbooks and supporting materials - Technical Support folder: Key TWG technical materials - RTCB@ercot.com mailbox for support of stakeholder implementation questions - Established FAQ document and posted on RTCBTF home page - Target to add more training videos in next 30 days (in process) - Operations / Load Resources / RTC Worksheet Solver Walkthrough - Day-Ahead Market / Battery - Following guidance from RTCBTF to engage DSWG separately (done 4/17/25) - Outreach to Operator Training Seminar and Spring GCPA (complete next Wednesday) - Next TWG meeting is May 29 - ERCOT will continue to support detailed technical conversations such as adding telemetry points to network model, digital certificates, accessing ERCOT systems in March/April timeframe - - - Closed-Loop LFC planning (critical for market feedback)- later today Looking to start internal work on Transition/Cutover Plan Formal Market Trials began May 5, 2025 (more on next slide) 6 6 Public
Weekly Market Trials update Trials meeting every Monday 10-10:30am until December Standalone calendar page each week with WebEx RTCBTF Home Page houses all market trials documentation Averaging 150-175 participants Weekly presentation walk-through with Q&A Weeks 1&2 were educational Week 3 scoring was initiated Heavy use of RTCB@ercot.com email -> FAQ Quick walkthrough of this week s meeting 7 7 Public
Focus for remainder of RTCBTF today: Draft Clarification NPRR needed before Go-Live (Dave Maggio) Discussion of impacts of capping System Lambda and alternatives (Shams) State of Charge / AS Duration Discussion (Nitika Mago) Discussion as needed for NPRR1282/NOGRR277 Re-education on AS Deployment Factors (Sai whitepaper prior to NPRR1204) Market Readiness Review Handbook #5- Closed-Loop LFC Tests (Round 2) - Matt Mereness Review Handbook #6- Day-Ahead Market Tests (Round 2) - Alfredo Moreno Review of Settlement Statements and Extracts - Magie Shanks Other Business 8 Public