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Meeting Summary - 09/11/24 WMS Meeting

Grid Monitor AI
09/13/2024

<img src="/storage/docs/2024/09/20240911%20WMS%20Hero.png" width="872" height="490" /> <a href="/sharing/?token=736d14a2-db72-425e-a8ba-8af919e84bfd">0</a> - Validation for WMS Standing Representatives - Pamela Hanson <a href="/sharing/?token=2184b1cf-2595-497a-8d19-e7f74f5faf71">1</a> - Antitrust Admonition - Eric Blakey <a href="/sharing/?token=bd8869d2-4566-4c1a-9f26-fa5654d5d66c">2</a> - Agenda Review - Eric Blakey <a href="/sharing/?token=8ea966d5-4270-4a1d-a2e6-40c6e3afd8b3">3</a> - Approval of WMS Meeting Minutes - Vote - Eric Blakey <ul> <li style="font-weight: 400;" aria-level="1">July minutes will be added to the combo ballot for approval.</li> </ul> <a href="/sharing/?token=4fd5bace-d177-4269-a1f3-6d23b6e382d7">4</a> - Technical Advisory Committee TAC Update - Eric Blakey <ul> <li style="font-weight: 400;" aria-level="1">Stakeholder process was the major topic of discussion.</li> <li style="font-weight: 400;" aria-level="1">Chairman Gleason commented on improvements needed for the stakeholder process.</li> <li style="font-weight: 400;" aria-level="1">TAC workshop scheduled for the fifth was canceled and will now be the first topic at the next TAC meeting on September 19.</li> <li style="font-weight: 400;" aria-level="1">The TAC meeting on September 19 will start at 09:00 am and the first two hours will be focused on the stakeholder process.</li> <li style="font-weight: 400;" aria-level="1">Further discussion on the stakeholder process will occur under agenda item 15.</li> <li style="font-weight: 400;" aria-level="1">WMS report was presented and generally well received, though there were comments.</li> <li style="font-weight: 400;" aria-level="1">TAC chair Caitlin Smith appreciated the collaboration with the IMM and his presentation on the state of the market report.</li> <li style="font-weight: 400;" aria-level="1">There will be further discussion on TAC assignments and open action items under item 15.</li> </ul> <a href="/sharing/?token=ad5d2166-efdf-4377-9479-55bc7b83992c">5</a> - ERCOT Operations and Market Items <a href="/sharing/?token=5318c388-be38-490d-b3e2-9581dbf18c07">5.1</a> - Proposed Changes to Ancillary Service Methodology for 2025 - Vote - Luis Hinojosa <ul> <li style="font-weight: 400;" aria-level="1">Presented a high-level <a href="https://ercot-control-docs.s3.us-west-2.amazonaws.com/04/05-wms_2025_as_methodology_09112024.pptx">overview</a> and proposed changes to the 2025 Ancillary Service (AS) Methodology.</li> <li style="font-weight: 400;" aria-level="1">Initial discussions kicked off in July and continued with ROS and TAC.</li> <li style="font-weight: 400;" aria-level="1">Changes in regulation service from net load ramping to forecasted net load error.</li> <li style="font-weight: 400;" aria-level="1">Adjustments to generation to be dispatched (GTBD) application to use net load forecast error.</li> <li style="font-weight: 400;" aria-level="1">Three changes in ERCOT: </li> <ul> <li style="font-weight: 400;" aria-level="2">Removal of 90th percentile minimum for sunset hours,</li> <li style="font-weight: 400;" aria-level="2">Adjusted the frequency recovery portion of accounting for historical load to the 70th percentile, matching RRS methodology.</li> <li style="font-weight: 400;" aria-level="2">Compute the minimum ECRS requirements as the larger of the capacity needed to recover frequency and capacity needed to support net load forecast errors.</li> </ul> <li style="font-weight: 400;" aria-level="1">Non-spin service changes: using 4-hour net load forecast error for low peak hours and 6-hour ahead methodology for others.</li> <li style="font-weight: 400;" aria-level="1">No changes in RRS methodology, but changes to the IFRO resulting in new minimum RSPFR limit for 2025 at 1,365 MW from 1,185 MW.</li> <li style="font-weight: 400;" aria-level="1">Proposed methodology sheets and quantities by month will be updated and presented to TAC next week.</li> <li style="font-weight: 400;" aria-level="1">Questions raised about potential regulation shortfalls in winter mornings and their risks.</li> <li style="font-weight: 400;" aria-level="1">Discussion on possible nesting methodology for non-spin and ECRS proposed by IMM.</li> <li style="font-weight: 400;" aria-level="1">General support for ERCOT's proposed plans but suggestions for PUC involvement in policy settings.</li> </ul> Decisions: <ul> <li style="font-weight: 400;" aria-level="1">To endorse proposed changes to the Ancillary Service Methdology for 2025 as submitted by ERCOT Staff.</li> </ul> <img src="/storage/docs/2024/09/20240911%20WMS%20AS%20Combo.png" width="872" height="875" /> <a href="/sharing/?token=7f57ce00-04af-4774-90fa-68e4d01843a3">5.2</a> - Congestion Revenue Rights Auction Mitigation - Samantha Findley <ul> <li style="font-weight: 400;" aria-level="1">Performance issues in long-term auctions, especially those spanning three years.</li> <li style="font-weight: 400;" aria-level="1">Increase in settlement points, registered CRRAH account holders, and counterparties causing constraints on optimization.</li> <li style="font-weight: 400;" aria-level="1">Historical performance issues: A recent sequence took 363 hours to converge on a solution, causing delays.</li> <li style="font-weight: 400;" aria-level="1">Medium and long-term market design changes proposed to improve auction performance.</li> <li style="font-weight: 400;" aria-level="1">Short-term mitigation includes new per TOU limits, potentially setting a transaction adjustment period to ensure timely auction solutions.</li> <li style="font-weight: 400;" aria-level="1">Potential changes discussed: Lowering per account holder limits, increasing minimum bid prices, removing multi-month bid functionality, and modifying capacity percentages for long term auctions.</li> <li style="font-weight: 400;" aria-level="1">Concerns about the future impact due to increasing CRRAH account holders and settlement points.</li> <li style="font-weight: 400;" aria-level="1">Sympathy expressed for stakeholders facing disruption in congestion hedging strategies with limited notice.</li> <li style="font-weight: 400;" aria-level="1">Discussion on hardware and software optimizations undertaken, including running up to 28 CPUs.</li> <li style="font-weight: 400;" aria-level="1">Feedback from stakeholders on improving systems, concerns over potential limits, and future planning for system capacity.</li> </ul> <a href="/sharing/?token=194cdd51-57dd-40bf-b61e-702a3c5b8d2f">5.3</a> - Large Load Interconnection <a href="https://ercot-control-docs.s3.us-west-2.amazonaws.com/09/05-lli-queue-status-update-2024-9-6.pdf">Report</a> - Manuel Navarro Catalan - Chris Cosway <ul> <li style="font-weight: 400;" aria-level="1">Significant growth in co-located and standalone projects.</li> <li style="font-weight: 400;" aria-level="1">Standalone projects make up the majority of new megawatts and are growing faster.</li> <li style="font-weight: 400;" aria-level="1">Current total queue capacity increased by 4,439 MW since last month.</li> <li style="font-weight: 400;" aria-level="1">Significant increase in projects with in-service dates in 2028.</li> <li style="font-weight: 400;" aria-level="1">Most megawatts are under ERCOT review due to pending and under review studies.</li> <li style="font-weight: 400;" aria-level="1">Slight decrease in planning studies approved recently, but steady approved energized megawatts.</li> <li style="font-weight: 400;" aria-level="1">5,496 MW approved to energize, with a notable amount in the west load zone and consisting mostly of standalone projects.</li> <li style="font-weight: 400;" aria-level="1">Observed a steady increase in non-simultaneous peak load and simultaneous peak consumption.</li> </ul> Bill Barnes <ul> <li style="font-weight: 400;" aria-level="1">Request to provide information on what has actually been energized.</li> <li style="font-weight: 400;" aria-level="1">Include a breakdown of loads by type if possible.</li> <li style="font-weight: 400;" aria-level="1">Request for a timeline on the remaining approved loads.</li> </ul> Brian Sams <ul> <li style="font-weight: 400;" aria-level="1">Echoed Bill Barnes' comments on the need for more transparency.</li> <li style="font-weight: 400;" aria-level="1">Emphasis on the importance of understanding potential double counting in the large load queue.</li> <li style="font-weight: 400;" aria-level="1">More transparency would add credibility to long-term load forecasts.</li> </ul> Seth Cochran <ul> <li style="font-weight: 400;" aria-level="1">Inquired about the expected timeline for projects to come online.</li> <li style="font-weight: 400;" aria-level="1">Questioned the proportion of projects that might not come online.</li> <li style="font-weight: 400;" aria-level="1">Asked about the duration for which projects can stay in the queue without progress.</li> </ul> Bob Wittmeyer <ul> <li style="font-weight: 400;" aria-level="1">Noted the necessity of considering load ramp schedules.</li> <li style="font-weight: 400;" aria-level="1">Suggested a legal review of sharing limitations.</li> <li style="font-weight: 400;" aria-level="1">Commented on the hibernation of the large flexible load task force.</li> <li style="font-weight: 400;" aria-level="1">Referred to NPRR1202 dealing with queue filtering and associated fees.</li> </ul> Ian Haley <ul> <li style="font-weight: 400;" aria-level="1">Supported the idea of including connected loads in reports for clarity.</li> </ul> General Discussion <ul> <li style="font-weight: 400;" aria-level="1">Overall transparency and detailed breakdowns in reports are crucial for stakeholders.</li> <li style="font-weight: 400;" aria-level="1">Continuation of monthly reports to address evolving questions from stakeholders.</li> </ul> <a href="/sharing/?token=c0bf30d1-05a1-408c-8341-5c04acd7630f">6</a> - Wholesale Market Working Group - WMWG - Amanda Frazier <a href="/sharing/?token=96344f5a-31fa-4356-9e91-c38b04a4578f">6.1</a> - NPRR1235 Dispatchable Reliability Reserve Service Discussion <ul> <li style="font-weight: 400;" aria-level="1">ERCOT outlined their comments from August 23.</li> <li style="font-weight: 400;" aria-level="1">High-level discussion about adding ESRs to the service with no real consensus or plan to endorse.</li> <li style="font-weight: 400;" aria-level="1">Understanding that ESRs wouldn't be added in phase one.</li> <li style="font-weight: 400;" aria-level="1">ERCOT committed to continue looking at the issue and to file an NPRR this year but did not commit to moving forward with phase two.</li> <li style="font-weight: 400;" aria-level="1">Details of comments from the NPRR were reviewed to highlight specific policy decisions embedded in the language.</li> <li style="font-weight: 400;" aria-level="1">Reminder for market participants to review the detailed NPRR.</li> </ul> <a href="/sharing/?token=02fe5024-b71c-4fb8-8bcd-9c95ce79b4a9">6.2</a> - NPRR1229, CMP Payment Policy Questions Discussion <ul> <li style="font-weight: 400;" aria-level="1">This was the second discussion on NPRR1229, which was filed by STEC following an incident with one of their plants.</li> <li style="font-weight: 400;" aria-level="1">The proposal involves a payment for when ERCOT implements a CMP if it impacts a generator.</li> <li style="font-weight: 400;" aria-level="1">ERCOT has policy concerns about this NPRR and has engaged with STEC and market participants offline.</li> <li style="font-weight: 400;" aria-level="1">There is a consideration whether this issue should be elevated to TAC for higher-level policy discussions.</li> <li style="font-weight: 400;" aria-level="1">A clarification was made that there was no specific incident of a unit trip offline, but it's more about what actions are needed if such an event occurs.</li> <li style="font-weight: 400;" aria-level="1">Decision on WMS's recommendation is postponed until item twelve, </li> </ul> <a href="/sharing/?token=ee5e5c01-23cd-4138-95a2-f3ed7a169115">6.3</a> - NPRR1238, Voluntary Registration of Loads with Curtailable Load Capabilities - ORDC Implications <ul> <li style="font-weight: 400;" aria-level="1">Luminant proposed a change but decided not to pursue it due to timing with real-time co-optimization.</li> <li style="font-weight: 400;" aria-level="1">The issue is considered OBE (overtaken by events) and will not stay on the discussion for WMW.</li> </ul> <a href="/sharing/?token=924bbecf-e72f-4012-aa1b-76816e54c6c9">6.4</a> - NPRR1241 Firm Fuel Supply & Hourly Standby Fee <ul> <li style="font-weight: 400;" aria-level="1">Discussion on changes to the calculation of the hourly standby fee for firm fuel service.</li> <li style="font-weight: 400;" aria-level="1">ERCOT reviewed the NPRR and is open to discussions about it, but no substantive agreement was reached.</li> <li style="font-weight: 400;" aria-level="1">Initial discussion, NPRR1241 had not been reviewed by PRS or WMS yet.</li> <li style="font-weight: 400;" aria-level="1">Consideration of tabling the NPRR and referring it back to WMWG for further discussion was proposed.</li> <li style="font-weight: 400;" aria-level="1">ERCOT is internally reviewing the NPRR and might provide suggestions for improvement.</li> </ul> <a href="/sharing/?token=6dc0d02f-3c4d-4b77-900d-ded4771339fd">6.5</a> - NPRR 1230 / Other <ul> <li style="font-weight: 400;" aria-level="1">NPRR1230 will be monitored by CMWG instead of WMWG moving forward.</li> </ul> <ul> <li style="font-weight: 400;" aria-level="1">Awaiting further internal suggestions from ERCOT.</li> <li style="font-weight: 400;" aria-level="1">Potential tabling and referral of NPRR1241 to WMWG.</li> </ul> <a href="/sharing/?token=7ecbec6b-09c7-4d7a-8800-113576ff9e67">7</a> - Demand Side Working Group - DSWG - Nathaniel Mancha <ul> <li style="font-weight: 400;" aria-level="1">Skipped to second slide to save time, focusing on the 4CP update.</li> <li style="font-weight: 400;" aria-level="1">ERCOT provided an update on ADER and some NPRRs.</li> <li style="font-weight: 400;" aria-level="1">Presented two alternatives for a 4CP adjustment solution</li> <ul> <li style="font-weight: 400;" aria-level="2">Increasing market transparency with daily reports or telemetry data.</li> <li style="font-weight: 400;" aria-level="2">Removing WSL from 4CP calculations.</li> </ul> <li style="font-weight: 400;" aria-level="1">Concern over the growing impact of WSL adjustments on load data and pricing.</li> <li style="font-weight: 400;" aria-level="1">Proposal to remove WSL from certain calculations for quicker demand side insights.</li> <li style="font-weight: 400;" aria-level="1">Discussion on implementing these recommendations and the responsible parties for NPRRs.</li> <li style="font-weight: 400;" aria-level="1">Mark provided an update: difficulty in implementing changes due to PUC rule implications on WSL calculations.</li> <li style="font-weight: 400;" aria-level="1">A market participant filed an SCR to request WSL through ICCP; ERCOT recommended converting it into an NPRR. Draft NPRR has been submitted.</li> <li style="font-weight: 400;" aria-level="1">Current telemetry does not allow for direct calculation of WSL in real-time. The energy storage resource dashboard is used as a proxy.</li> <li style="font-weight: 400;" aria-level="1">Agreement on the importance of real-time data over daily extracts.</li> <li style="font-weight: 400;" aria-level="1">Discussion on ERCOT's role in sponsoring NPRR filings.</li> </ul> <a href="/sharing/?token=17f748f6-c7d7-44c0-aa4b-1281faf3dc0f">8</a> - Demand Side Working Group - DSWG - Nathaniel Mancha <ul> <li style="font-weight: 400;" aria-level="1">Topic: VCMRR042 - Verifiable Cost Manual Revision Request</li> <ul> <li style="font-weight: 400;" aria-level="2">Related to SO2 and NOx emission prices</li> <li style="font-weight: 400;" aria-level="2">Seasonal index pricing: May to September</li> <li style="font-weight: 400;" aria-level="2">Annual index pricing: October to April</li> <li style="font-weight: 400;" aria-level="2">New concept for ERCOT's monthly calculation process: average for first 15 days of prior month</li> <li style="font-weight: 400;" aria-level="2">Seasonal pricing starts at approximately $850 per short ton</li> <li style="font-weight: 400;" aria-level="2">Monthly adjustments paused with a plus/minus 10% threshold</li> </ul> <li style="font-weight: 400;" aria-level="1">Topic: Grey Box Language Addition</li> <ul> <li style="font-weight: 400;" aria-level="2">Addressed process changes for future automation</li> <li style="font-weight: 400;" aria-level="2">Need for clarity on manual vs. automated processes</li> <li style="font-weight: 400;" aria-level="2">Vistra and ERCOT to meet offline for further discussion</li> </ul> <li style="font-weight: 400;" aria-level="1">Topic: New Concept for Emission Cost Recovery</li> <ul> <li style="font-weight: 400;" aria-level="2">Concerns about QSA running out of emission credits</li> <li style="font-weight: 400;" aria-level="2">Purchases of additional credits not covered under current verifiable cost manual</li> <li style="font-weight: 400;" aria-level="2">Dispute-based recovery model proposed</li> <li style="font-weight: 400;" aria-level="2">Eligible recovery to be uplifted to load on an LRS basis</li> <li style="font-weight: 400;" aria-level="2">Group seeks to disincentivize over-procurement and credit only actual consumption</li> <li style="font-weight: 400;" aria-level="2">Language modification and clarity requested</li> <li style="font-weight: 400;" aria-level="2">There will be further discussion surrounding alternative options.</li> </ul> <li style="font-weight: 400;" aria-level="1">Topic: Future Meeting Plans</li> <ul> <li style="font-weight: 400;" aria-level="2">October meeting date pending</li> <li style="font-weight: 400;" aria-level="2">Progress on earlier discussed topics to determine date</li> </ul> </ul> <a href="/sharing/?token=bef03062-c00b-4590-bd38-62697101439f">9</a> - Supply Analysis Working Group - SAWG - Kevin Hanson <ul> <li style="font-weight: 400;" aria-level="1">Pete Warren presented on the CONE / Peaker net margin threshold draft NPRR.</li> <li style="font-weight: 400;" aria-level="1">ERCOT will revisit the CONE Peaker topic after the 8/29 PUC open meeting.</li> <li style="font-weight: 400;" aria-level="1">PUC adopted $140 kw per year as a cone for studies based on a frame CT reference technology.</li> <li style="font-weight: 400;" aria-level="1">PUC adopted $140 kw per year as the CONE for planning studies based on a frame CT reference technology.</li> </ul> <a href="/sharing/?token=5a3b5104-b0ad-446e-b990-94fe229cde9f">10</a> - WMS Revision Requests Tabled at WMS - Possible Vote - Eric Blakey <ul> <li style="font-weight: 400;" aria-level="1">Both requests can remain tabled.</li> </ul> <a href="/sharing/?token=439474ac-6fa5-45d3-b7b7-34517ae9863b">10.1</a> - SMOGRR028, Add Series Reactor Compensation Factors - MWG <ul> <li style="font-weight: 400;" aria-level="1">Reached out for an update; ERCOT is still working on technical comments.</li> <li style="font-weight: 400;" aria-level="1">The technical routine is the reason for the delay.</li> <li style="font-weight: 400;" aria-level="1">Plan to keep this matter tabled to MWG.</li> </ul> <a href="/sharing/?token=2d36d0d1-7bdd-471b-899d-b646e21b646e">10.2</a> - VCMRR042, SO2 and NOx Emission Index Prices Used in Verifiable Cost Calculations - RCWG <ul> <li style="font-weight: 400;" aria-level="1">Language is being developed for VCMRR042.</li> <li style="font-weight: 400;" aria-level="1">Will discuss VCMRR042 further at RCWG.</li> </ul> <a href="/sharing/?token=d166f93b-d4a3-4fe8-bd9c-3f4c29b8aec4">11</a> - New Protocol Revision Subcommittee - PRS - Referrals - Vote - Eric Blakey <a href="/sharing/?token=a4cbf8ea-34bc-4ce9-a325-c24b1763b677">11.1</a> - NPRR1241, Firm Fuel Supply Service - FFSS - Availability and Hourly Standby Fee <ul> <li style="font-weight: 400;" aria-level="1">Discussion on NPRR1241 regarding firm fuel supply service availability and hourly standby fee.</li> <li style="font-weight: 400;" aria-level="1">Request for formal referral to WMWG (Wholesale Market Working Group) was noted.</li> <li style="font-weight: 400;" aria-level="1">Need for further refinement of clawback and/or withholding amounts based on past seasons' berm fuel deployment experiences.</li> <li style="font-weight: 400;" aria-level="1">Changing proportionality criteria for maximum clawback on unavailability.</li> <li style="font-weight: 400;" aria-level="1">NPRR aims to align performance incentives with respective risks.</li> <li style="font-weight: 400;" aria-level="1">Request to continue discussions with ERCOT and WMWG.</li> <li style="font-weight: 400;" aria-level="1">Suggestion to table and refer the matter to WMWG for further discussion.</li> <li style="font-weight: 400;" aria-level="1">No opposition or concerns raised regarding the referral.</li> </ul> <a href="/sharing/?token=ccc3fadd-c5bf-4277-af5d-aa7b0e52e8b2">12</a> - Revision Requests Tabled at PRS and Referred to WMS - Possible Vote - Eric Blakey <a href="/sharing/?token=d613a79a-94f4-4f64-9017-ade8bed27f37">12.1</a> - NPRR1070, Planning Criteria for GTC Exit Solutions <ul> <li style="font-weight: 400;" aria-level="1">No new updates on NPRR1070.</li> </ul> <a href="/sharing/?token=fee19091-b7e2-4cdc-a414-e373d4a1da4b">12.2</a> - NPRR1200, Utilization of Calculated Values for Non-WSL for ESRs - MWG <ul> <li style="font-weight: 400;" aria-level="1">NPRR1200 MWG is not met.</li> </ul> <a href="/sharing/?token=d27ed51e-874a-4f9f-9f09-c1dac2d0d2f7">12.3</a> - NPRR1202, Refundable Deposits for Large Load Interconnection Studies - WMWG <ul> <li style="font-weight: 400;" aria-level="1">The item is currently hibernated.</li> <li style="font-weight: 400;" aria-level="1">WMSWG has completed all necessary actions they are aware of.</li> <li style="font-weight: 400;" aria-level="1">Suggestion to keep the item tabled at WMS.</li> <li style="font-weight: 400;" aria-level="1">Awaiting comments from different parties.</li> <li style="font-weight: 400;" aria-level="1">No vote required.</li> </ul> <a href="/sharing/?token=ee2a3e5e-14eb-4290-8c3e-ef6e72d076c4">12.4</a> - NPRR1214, Reliability Deployment Price Adder Fix to Provide Locational Price Signals, Reduce Uplift and Risk - CMWG <ul> <li style="font-weight: 400;" aria-level="1">NPRR1214 is still under review by CMWG.</li> </ul> <a href="/sharing/?token=1160aab9-9334-4ea0-b2e1-8f9b9c693f41">12.5</a> - NPRR1229, Real-Time Constraint Management Plan Energy Payment - WMWG <ul> <li style="font-weight: 400;" aria-level="1">Discussion about NPRR1229 potentially being addressed as a policy decision at the PUC due to the policy questions it has raised.</li> <li style="font-weight: 400;" aria-level="1">Suggestion to deny the request and allow an appeal to the commission as a more formal process.</li> <li style="font-weight: 400;" aria-level="1">Clarification needed on the process TAC would use to handle the policy questions.</li> <li style="font-weight: 400;" aria-level="1">A question was raised if there had been any briefings from STEC to the commission on this issue.</li> <li style="font-weight: 400;" aria-level="1">Lucas Turner responded there has been no outreach on policy questions but is working on comments to address some questions.</li> <li style="font-weight: 400;" aria-level="1">There is ongoing communication with STEC for language clarification on NPRR1229.</li> <li style="font-weight: 400;" aria-level="1">ERCOT has posted policy questions for WMWG but has not received responses.</li> <li style="font-weight: 400;" aria-level="1">Discussion on the need to address policy questions meaningfully to clarify NPRR1229.</li> <li style="font-weight: 400;" aria-level="1">Mention of significant policy questions like compensation to generators when they trip offline and opportunity costs.</li> <li style="font-weight: 400;" aria-level="1">Consensus that policy questions require more detailed answers before ERCOT can clarify NPRR1229.</li> <li style="font-weight: 400;" aria-level="1">Suggestions for the WMS' next steps, including possibly moving the discussion forward at the WMWG.</li> </ul> <a href="/sharing/?token=13296b69-acee-43b2-ace5-167b407c5dcc">12.6</a> - NPRR1235, Dispatchable Reliability Reserve Service as a Stand-Alone Ancillary Service - SAWG and WMWG <ul> <li style="font-weight: 400;" aria-level="1">Katie Riche discussed NPRR1235 about Dispatchable Reliability Reserve Service as a standalone ancillary service.</li> <li style="font-weight: 400;" aria-level="1">ERCOT plans to bring additional language for storage participation in DRRS.</li> <li style="font-weight: 400;" aria-level="1">ERCOT will ask PRS for direction on phase two.</li> <li style="font-weight: 400;" aria-level="1">Katie Rich requested that NPRR1235 be brought back next month for further discussion.</li> <li style="font-weight: 400;" aria-level="1">Dan Mantina from ERCOT presented an update on summer drought risk.</li> <li style="font-weight: 400;" aria-level="1">Pete Warkin discussed reliability standard updates and a presentation filed at the PUC.</li> <li style="font-weight: 400;" aria-level="1">Pete Warkin also discussed the CONE/VOLL studies; ERCOT filed the Brattle volume study on August 22.</li> <li style="font-weight: 400;" aria-level="1">The PUC adopted a $35,000 price for planning study volumes, increased from the initially proposed $30,000.</li> <li style="font-weight: 400;" aria-level="1">Discussions on December 2024 CDR planning process led by Pete Warkin.</li> <li style="font-weight: 400;" aria-level="1">ERCOT board approved NPRR1219, with PUC approval expected in September, and supplemental tabs to be added from May 2025.</li> <li style="font-weight: 400;" aria-level="1">Upcoming ELCC stay for storage between early to mid-October and a new NPRR for thermal resources by ERCOT.</li> <li style="font-weight: 400;" aria-level="1">Change in providers for developing solar wind shapes, with an announcement expected upon identification of the new company.</li> <li style="font-weight: 400;" aria-level="1">Next meeting in October; September 27 meeting canceled.</li> <li style="font-weight: 400;" aria-level="1">David Dalitsch asked for clarification on NPRR1235 discussion needs at SAWG.</li> <li style="font-weight: 400;" aria-level="1">Katie Rich explained NPRR1235 was tabled to discuss how it fits into resource adequacy, pending decisions from the last open meeting.</li> </ul> <a href="/sharing/?token=c2de5375-b0a5-4c30-a9b7-14102441c8a9">12.7</a> - NPRR1238, Voluntary Registration of Loads with Curtailable Load Capabilities - WMWG <ul> <li style="font-weight: 400;" aria-level="1">NPRR1238 was discussed previously, needs approval from WMS.</li> <li style="font-weight: 400;" aria-level="1">Importance expressed to move forward urgently despite removal of urgency status.</li> <li style="font-weight: 400;" aria-level="1">Effort to align NPRR1238 with NPRR1234 mentioned.</li> <li style="font-weight: 400;" aria-level="1">Current discussions ongoing at OWG, awaiting ROS input.</li> <li style="font-weight: 400;" aria-level="1">ORDC discussion at WMWG completed, now it's back to WMS for approval.</li> <li style="font-weight: 400;" aria-level="1">No additional language being added, related concerns addressed by ERCOT staff.</li> <li style="font-weight: 400;" aria-level="1">Oncor's comments included issues like including interconnecting TDSPs and changing from 'ceasing' to 'reducing' consumption during curtailment.</li> <li style="font-weight: 400;" aria-level="1">Some OWG team members still reviewing the language but no opposition to advancing from WMS perspective.</li> <li style="font-weight: 400;" aria-level="1">Possibility of ERCOT creating comments to be discussed in the LFLTF</li> <li style="font-weight: 400;" aria-level="1">No objections from LFLTF regarding NPRR1238.</li> <li style="font-weight: 400;" aria-level="1">Nabaraj Pokharel queried ERCOT's position; decision pending input from appropriate ERCOT representatives.</li> <li style="font-weight: 400;" aria-level="1">Agreement to table the item until further information is available from ERCOT.</li> </ul> <a href="/sharing/?token=8ed7b5be-59e4-416e-bb87-8438bd77abb1">13</a> - Major Transmission Elements - MTE - list - Vote - Rickey Floyd <ul> <li style="font-weight: 400;" aria-level="1">Reviewed updates to MTE list from the last OWG meeting on October 15.</li> <li style="font-weight: 400;" aria-level="1">TOs presented their recommendations for removals and edits.</li> <li style="font-weight: 400;" aria-level="1">OWG reached consensus on proposed removals and edits.</li> <li style="font-weight: 400;" aria-level="1">No additions to the MTE list were recommended this year.</li> <li style="font-weight: 400;" aria-level="1">OWG recommends WMS endorses the updated list.</li> </ul> <a href="/sharing/?token=1196e555-42b3-4d11-8731-328ac00b51e0">14</a> - Combo Ballot - Vote - Eric Blakey <img src="/storage/docs/2024/09/20240911%20WMS%20Combo%20Items.png" width="867" height="101" /> <img src="/storage/docs/2024/09/20240911%20WMS%20Combo.png" width="871" height="871" /> <a href="/sharing/?token=cc578882-e3d6-45d2-b1ce-a894b9cf2893">15</a> - Other Business - Eric Blakey <a href="/sharing/?token=fbf7d930-4695-4b13-8907-503d2a6444ee">15.1</a> - Review Open Action Items - Jim Lee <ul> <li style="font-weight: 400;" aria-level="1">Jim Lee indicated he did not have any updates.</li> </ul> <a href="/sharing/?token=2c79aa52-e7db-489c-bbea-71a5ff3dbe94">15.2</a> - Review of Stakeholder Process <ul> <li style="font-weight: 400;" aria-level="1">WMS subcommittee provided an opportunity to communicate potential improvements to TAC.</li> <li style="font-weight: 400;" aria-level="1">Discussion on improving information provided to the board and commissioners.</li> <li style="font-weight: 400;" aria-level="1">Focus on significant topics like ancillary services for 2024, document 245 and 1190.</li> <li style="font-weight: 400;" aria-level="1">Consideration of changing voting requirement to two-thirds instead of 50% for better process, though the impact is uncertain.</li> <li style="font-weight: 400;" aria-level="1">Issue of transparency and governance was raised.</li> <li style="font-weight: 400;" aria-level="1">Suggestions for increasing communication visibility at the TAC level.</li> <li style="font-weight: 400;" aria-level="1">No major changes proposed at subcommittee level until further discussion at TAC.</li> <li style="font-weight: 400;" aria-level="1">Next TAC meeting announcement and reminder about the start time.</li> <li style="font-weight: 400;" aria-level="1">Open invitation for suggestions to improve WMS efficiency and communication.</li> </ul> <a href="/sharing/?token=e6e4fdf0-a075-40cc-a185-e169ef6766d3">15.3</a> - TAC assignments - Eric Blakey <ul> <li style="font-weight: 400;" aria-level="1">Discussion about reviewing TAC assignments per Caitlin's suggestion.</li> <li style="font-weight: 400;" aria-level="1">Noted the importance of working groups to review assignments related to EPA and 1230.</li> <li style="font-weight: 400;" aria-level="1">Concerns about not discussing the EPA updates in WMS and the appropriateness of current assignments.</li> <li style="font-weight: 400;" aria-level="1">Mention of old open action items and parking lot items that need review and potential removal.</li> <li style="font-weight: 400;" aria-level="1">Request for recommendations to clean out the parking lot and decide on the necessity of these items.</li> <li style="font-weight: 400;" aria-level="1">Uncertainty about the purpose of the parking lot items as they are rarely used in other subcommittees.</li> </ul> <a href="/sharing/?token=ceaf9cc0-7320-4bee-a7e2-51e7dec1d8fb">16</a> - Adjourn - Eric Blakey <ul> <li style="font-weight: 400;" aria-level="1">Eric Blakey concluded the meeting.</li> </ul>