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Meeting Summary - 12/05/24 ROS Meeting

Grid Monitor AI
12/05/2024

<img src="/storage/docs/2024/12/20241205%20ROS%20Hero.png" width="865" height="653" /> <h2><a href="/sharing/?token=85a431b7-0219-4fd1-aa3f-9c1d9a5fa710">▶️</a> 0 - Validation for ROS Standing Representatives - ERCOT Staff</h2> <h2><a href="/sharing/?token=511e3b5e-02ca-40f8-8642-7dc7eb2677b2">▶️</a> 1 - Antitrust Admonition - Katie Rich</h2> <h2><a href="/sharing/?token=b4e74e32-bedf-4a39-8886-f4c4054eae56">▶️</a> 2 - Agenda Review - Katie Rich</h2> <h2><a href="/sharing/?token=54abde1f-5d47-48d3-8946-f823ee7ab210">▶️</a> 3 - Technical Advisory Committee - TAC - Update - Katie Rich</h2> <ul> <li style="font-weight: 400;" aria-level="1">TAC and the board approved NPRR1247, introducing a new economic cost test.</li> <li style="font-weight: 400;" aria-level="1">All of ROS's RRs were approved.</li> <li style="font-weight: 400;" aria-level="1">ERCOT staff proposed revisions to the MDRPOC, which involves outage scheduling.</li> <li style="font-weight: 400;" aria-level="1">Future plans include shifting to a more probabilistic-based approach for calculating outage schedules next year.</li> </ul> <h2><a href="/sharing/?token=215c84b7-4648-4ff7-8bc0-5586ec8eb4f4">▶️</a> 4 - ERCOT Reports</h2> <h3><a href="/sharing/?token=2911735b-badf-4a81-8a0f-4d5a7cf1e001">▶️</a> 4.1 - Operations Report - Alex Lee</h3> <a href="/storage/docs/2024/12/october-2024-ercot-operations-report-public.pdf">october-2024-ercot-operations-report-public.pdf</a> <ul> <li style="font-weight: 400;" aria-level="1">Peak Demand: 72,540 MWs on October 3rd</li> <li style="font-weight: 400;" aria-level="1">Load Comparison: 1,306 MWs higher than 2023 October peak demand</li> <li style="font-weight: 400;" aria-level="1">There were 3 frequency events, all were due to unit trips</li> <li style="font-weight: 400;" aria-level="1">No ECRS or RRS released in October</li> <li style="font-weight: 400;" aria-level="1">No DC Tie Curtailments</li> <li style="font-weight: 400;" aria-level="1">49 HRUC Commitments which were mostly related to capacity issues or congestion</li> <li style="font-weight: 400;" aria-level="1">7 Emergency Condition Notices (OCNs) issued:</li> <ul> <li style="font-weight: 400;" aria-level="2">4 related to PNHNDL, 3 of which were notifying a topology change that impacts the limit, and 1 relates to the outage actually resulting in ERCOT taking manual action for the PNHNDL GTC IROL</li> <li style="font-weight: 400;" aria-level="2">2 issues related to extreme hot weather as well as a potential capacity shortage reserve</li> <li style="font-weight: 400;" aria-level="2">1 issue related to GTC (Generic Transmission Constraint)</li> </ul> <li style="font-weight: 400;" aria-level="1">4 Advisories issued for Geomagnetic disturbance (GMD) of [K-7] or Higher.</li> <ul> <li style="font-weight: 400;" aria-level="2">Impact: Minimal real-time operations impact</li> </ul> <li style="font-weight: 400;" aria-level="1">Discussion: Opened floor for questions, none raised</li> </ul> <h3><a href="/sharing/?token=3c7b4be1-fd69-4f07-9d40-0af6c159c5e5">▶️</a> 4.2 - System Planning Report - Ping Yan</h3> <a href="/storage/docs/2024/12/systemplanningros_oct2024.pdf">Systemplanningros_oct2024.pdf</a>   <ul> <li style="font-weight: 400;" aria-level="1">ERCOT plans to bring an update on the EHV 765-kV infrastructure plan.</li> <li style="font-weight: 400;" aria-level="1">Update to be presented in the December RPG meeting, rescheduled to December 16th.</li> <li style="font-weight: 400;" aria-level="1">The December meeting will be a WebEx only event.</li> <li style="font-weight: 400;" aria-level="1">Attendees were invited to stay tuned for more discussions on the EHV 765-kV plan</li> <li style="font-weight: 400;" aria-level="1">Report Highlights</li> <ul> <li style="font-weight: 400;" aria-level="2">ERCOT is currently reviewing proposed transmission improvements with a total estimated cost of $3.397 billion as of October 31, 2024. </li> <li style="font-weight: 400;" aria-level="2"> Transmission Projects endorsed in 2024 total $3.034 billion as of October 31, 2024.</li> <li style="font-weight: 400;" aria-level="2"> All projects (in engineering, routing, licensing, and construction) total approximately $16.504 billion as of October 1, 2024. </li> <li style="font-weight: 400;" aria-level="2">Transmission Projects energized in 2024 total approximately $2.435 billion (as of October 1, 2024).</li> </ul> </ul> <h2><a href="/sharing/?token=84e84899-0e80-4542-8815-707faa66fc57">▶️</a> 5 - ROS Revision Requests - Vote - Katie Rich</h2> <h3><a href="/sharing/?token=ecf725a7-7bae-46df-bc32-4c2e41afa64e">▶️</a> 5.1 - PGRR117, Addition of Resiliency Assessment and Criteria to Reflect PUCT Rule Changes</h3> <ul> <li style="font-weight: 400;" aria-level="1">Motion to endorse and forward to TAC the 11/7/24 ROS Report and 7/17/24 Impact Analysis for PGRR117 added to the combo ballot.</li> <ul> <li style="font-weight: 400;" aria-level="2">O&M costs related to the item were mentioned.</li> <li style="font-weight: 400;" aria-level="2">The implementation is contingent on PUC approval.</li> </ul> </ul> <h3><a href="/sharing/?token=080600f1-f507-45aa-8cdd-c1c2dbd45f77">▶️</a> 5.2 - NOGRR272, Advanced Grid Support Requirements for Inverter-Based ESRs</h3> <ul> <li style="font-weight: 400;" aria-level="1">Motion to table NOGRR272 and refer the issue to DWG and IBRWG added to the combo ballot.</li> <ul> <li style="font-weight: 400;" aria-level="2">Comments from Jupiter Power and potential input from Tesla were acknowledged regarding the proposal.</li> <li style="font-weight: 400;" aria-level="2">Technical and policy concerns were raised about the proposal’s current language and its implications for compliance by energy storage resources (ESRs).</li> <li style="font-weight: 400;" aria-level="2">The need for specific compliance standards from ERCOT was emphasized to ensure operators can meet performance requirements.</li> <li style="font-weight: 400;" aria-level="2">Policy issues stem from the proposal mandating requirements potentially increasing costs for a subset of technology without providing market-based incentives.</li> <li style="font-weight: 400;" aria-level="2">The suggestion to consider this proposal as an ancillary service instead, potentially to be compensated for providing extra grid stability, was discussed.</li> <li style="font-weight: 400;" aria-level="2">Discussion included comparing how other jurisdictions address similar grid support requirements—some through incentives or government funding.</li> <li style="font-weight: 400;" aria-level="2">Acknowledgement that current language is vague and lacks specifics, which causes compliance and competitive market concerns.</li> <li style="font-weight: 400;" aria-level="2">Bob Helton, ENGOE, discussed writing an NPRR to address policy issues and create a stakeholder platform for further discussion.</li> <li style="font-weight: 400;" aria-level="2">There was a proposal to table this item for more detailed discussions across working groups (DWG and others).</li> <li style="font-weight: 400;" aria-level="2">Julia Matevosyan from ESIG provided an international perspective on similar requirements in other regions and the handling of technical standards.</li> <li style="font-weight: 400;" aria-level="2">Caitlin Smith and Bob helton indicated their position on seeking for market-based solutions and clarity on the proposal to avoid imposing undue burdens on specific technologies.</li> <li style="font-weight: 400;" aria-level="2">Various ERCOT stakeholders discussed the potential impacts and technical aspects, agreeing on further stakeholder engagement to refine the proposal.</li> </ul> </ul> <h3><a href="/sharing/?token=6f5276b3-9913-4973-a636-782d18702bf2">▶️</a> 5.3 - PGRR121, Related to NOGRR272, Advanced Grid Support Requirements for Inverter-Based ESRs</h3> <ul> <li style="font-weight: 400;" aria-level="1">Motion to table PGRR121 and refer the issue to DWG and IBRWG added to the combo ballot.</li> <ul> <li style="font-weight: 400;" aria-level="2">NOGRR272 and PGRR121 will be sent to DWG and IBRWG.</li> <li style="font-weight: 400;" aria-level="2">Plan to add these items to the combo ballot if no opposition is present.</li> </ul> </ul> <h3><a href="/sharing/?token=74522990-9251-476a-96c3-a3a0888e0fb7">▶️</a> 5.4 - PGRR122, Reliability Performance Criteria for Loss of Load</h3> <ul> <li style="font-weight: 400;" aria-level="1">Motion to table PGRR122 and refer the issue to DWG and PLWG added to the combo ballot.</li> <ul> <li style="font-weight: 400;" aria-level="2">The need for performance criteria due to increasing large loads connecting to the ERCOT system.</li> <li style="font-weight: 400;" aria-level="2">A 1,000 MW limit is proposed for any large load to prevent frequency instability and generator trips.</li> <li style="font-weight: 400;" aria-level="2">In case of a contingency event, the system should handle less than 1 gigawatt of load loss.</li> <li style="font-weight: 400;" aria-level="2">Possible system upgrades like synchronous condensers or grid-forming STATCOMs might be necessary.</li> <li style="font-weight: 400;" aria-level="2">The proposal will be further discussed with DWG and PLWG.</li> <li style="font-weight: 400;" aria-level="2">Questions raised about handling multiple large loads in an area and system capability to manage load loss.</li> <li style="font-weight: 400;" aria-level="2">Clarification on how interconnection for large loads greater than 1 GW should be managed.</li> <li style="font-weight: 400;" aria-level="2">Discussion on various possible scenarios and potential solutions, including not being too prescriptive and allowing for creative solutions.</li> <li style="font-weight: 400;" aria-level="2">The ongoing discussion in other working groups like OWG, PDCWG, and inclusion of presentations on similar issues.</li> <li style="font-weight: 400;" aria-level="2">Considerations for cumulative load requests and updating figures in planning studies.</li> <li style="font-weight: 400;" aria-level="2">Clarity on requirements specific to standalone vs co-located large loads.</li> <li style="font-weight: 400;" aria-level="2">Consultation with other ISOs, with acknowledgment of differing system sizes and capacities globally.</li> </ul> </ul> <h2><a href="/sharing/?token=2e07f07e-d72d-47be-a9ec-26f46aebf524">▶️</a> 6 - New Protocol Revision Subcommittee - PRS - Referrals - Vote - Katie Rich</h2> <h3><a href="/sharing/?token=36f022a8-6f4e-431b-9f99-7768b49128b9">▶️</a> 6.1 - NPRR1257, Limit on Amount of RRS a Resource can Provide Using Primary Frequency Response</h3> <ul> <li style="font-weight: 400;" aria-level="1">Motion to endorse NPRR1257 as submitted added to the combo ballot.</li> <ul> <li style="font-weight: 400;" aria-level="2">ERCOT proposed an initial limit of 156 MWs on responsive reserve as a resource.</li> <li style="font-weight: 400;" aria-level="2">The proposal was discussed at the PDCWG, with initial concerns from Jupiter Power.</li> <li style="font-weight: 400;" aria-level="2">Caitlin expressed comfort with the proposal after regulatory concerns were addressed.</li> <li style="font-weight: 400;" aria-level="2">Primary concerns revolved around the potential yearly changes in ancillary service methodology.</li> <li style="font-weight: 400;" aria-level="2">Future changes in inertia and ancillary services were discussed, with a stable outlook for the next five years.</li> <li style="font-weight: 400;" aria-level="2">PDC had minimal discussion since preliminary concerns were addressed.</li> <li style="font-weight: 400;" aria-level="2">There was consideration of whether ROS was ready to advance NPRR1257 without further review.</li> </ul> </ul> <h2><a href="/sharing/?token=1afc69b1-6fa3-4543-9bf6-61780bdcd615">▶️</a> 7 - Revision Requests Tabled at PRS and Referred to ROS - Possible Vote - Katie Rich</h2> <h3><a href="/sharing/?token=5863b180-6fff-4b28-ad3b-f3a601a5c775">▶️</a> 7.1 - NPRR1229, Real-Time Constraint Management Plan Energy Payment</h3> <ul> <li style="font-weight: 400;" aria-level="1">NPRR1229 is currently under discussion at WMS</li> <li style="font-weight: 400;" aria-level="1">Ongoing conversations between WMS and ERCOT regarding NPRR1229.</li> </ul> <h2><a href="/sharing/?token=85864f0c-f9f3-4807-9364-33abdab4f514">▶️</a> 8 - Revision Requests Tabled at ROS - Possible Vote - Katie Rich</h2> <h3><a href="/sharing/?token=94f1681d-69a8-4342-86ba-7070006955ff">▶️</a> 8.1 - PGRR073, Related to NPRR956, Designation of Providers of Transmission Additions</h3> <ul> <li style="font-weight: 400;" aria-level="1">PGRR073 has been on the agenda for an extended period.</li> <li style="font-weight: 400;" aria-level="1">Decision made to leave the item in its current status.</li> <li style="font-weight: 400;" aria-level="1">Transition to working group updates starting with OWG.</li> </ul> <h2><a href="/sharing/?token=3dbcbd7d-2088-4915-a34f-69e78f9f3109">▶️</a> 9 - Operations Working Group - OWG - Rickey Floyd</h2> <h3><a href="/sharing/?token=c1e70c3c-aec6-4a7b-b8e8-487bc2f435a8">▶️</a> 9.1 - NPRR1070, Planning Criteria for GTC Exit Solutions - OWG, PLWG- Possible Vote</h3> <ul> <li style="font-weight: 400;" aria-level="1">NPRR1070 remains tabled at OWG.</li> </ul> <h3><a href="/sharing/?token=78081e11-7573-4c27-bb9d-c87993cae9ef">▶️</a> 9.2 - NPRR1238, Voluntary Registration of Loads with Curtailable Load Capabilities - OWG - Possible Vote</h3> <ul> <li style="font-weight: 400;" aria-level="1">ERCOT comments were expected but not yet filed.</li> <li style="font-weight: 400;" aria-level="1">ERCOT's comments are still under review as of the meeting.</li> </ul> <h3><a href="/sharing/?token=9f723d24-15d7-442b-a9cb-cba8fcbff594">▶️</a> 9.3 - NOGRR265, Related to NPRR1238, Voluntary Registration of Loads with Curtailable Load Capabilities - OWG - Possible Vote</h3> <ul> <li style="font-weight: 400;" aria-level="1">NOGRR265 discussion is pending ERCOT's comments.</li> <li style="font-weight: 400;" aria-level="1">Anticipation of comments by the next meeting.</li> <li style="font-weight: 400;" aria-level="1">Inquiry about ERCOT's ability to comment during the meeting.</li> <li style="font-weight: 400;" aria-level="1">Fred Hung mentions SME is unavailable but will follow up with an update.</li> </ul> <h2><a href="/sharing/?token=b0066f0b-378e-40cd-83ce-41405a2f14d3">▶️</a> 10 - Planning Working Group - PLWG - Dylan Preas</h2> <ol start="10"> <li><a href="/storage/docs/2024/12/10.%20%20Planning%20Working%20Group%20Report_11122024.pdf"> Planning Working Group Report_11122024.pdf</a></li> </ol> <h3><a href="/sharing/?token=30b79ef5-e9c4-4b75-98c6-a17387e6380e">▶️</a> 10.1 - PGRR115, Related to NPRR1234, Interconnection Requirements for Large Loads and Modeling Standards for Loads 25 MW or Greater - PLWG - Possible Vote</h3> <ul> <li style="font-weight: 400;" aria-level="1">PLWG met on November 12th to discuss PGRR115 and its implications for large loads and modeling standards for loads of 25 MWs or greater.</li> <li style="font-weight: 400;" aria-level="1">ERCOT reviewed reply comments on PGRR115 and NPRR1234, both dated November 11th.</li> <li style="font-weight: 400;" aria-level="1">Discussion included potential overlap of PGRR115 with PGRR122, specifically concerning the 1000 MW total load loss limit in PGRR122.</li> <li style="font-weight: 400;" aria-level="1">Jeff provided input on the discussion and the possibility of a combo ballot vote at PLWG.</li> <li style="font-weight: 400;" aria-level="1">A decision was made to table PGRR115 for further discussion in December.</li> </ul> <h3><a href="/sharing/?token=3ee57396-bd97-43cd-9461-fd51c5dbfbe2">▶️</a> 10.2 - PGRR119, Stability Constraint Modeling Assumptions in the Regional Transmission Plan - PLWG - Possible Vote</h3> <ul> <li style="font-weight: 400;" aria-level="1">PGRR119 formalizes ERCOT's existing practice of applying a reliability margin, such as 10%, to stability constraints in the Regional Transmission Plan (RTP).</li> <li style="font-weight: 400;" aria-level="1">Discussion centered around the OPUC's comments dated November 6th.</li> <li style="font-weight: 400;" aria-level="1">Consensus was reached by PLWG on the original version of PGRR119, which was submitted by ERCOT on September 9th.</li> <li style="font-weight: 400;" aria-level="1">There were comments from joint commenters with suggestions for edits and clarifications to address concerns and enhance clarity.</li> <li style="font-weight: 400;" aria-level="1">Request to return the item to PLWG for further discussion, agreed upon for a future meeting on December 18th.</li> </ul> <h3><a href="/sharing/?token=976723a5-9083-4482-aee3-01d4ff9946e6">▶️</a> 10.3 - PGRR120, SSO Prevention for Generator Interconnection - PLWG - DWG - Possible Vote</h3> <ul> <li style="font-weight: 400;" aria-level="1">PGRR120 will prohibit future generation resources from interconnecting on a seriously compensated circuit that could cause generation to become radial to a series capacitor during an n minus one contingency event.</li> <li style="font-weight: 400;" aria-level="1">ERCOT presented an overview of the draft presentation at PLWG, previously seen at prior ROS meetings.</li> <li style="font-weight: 400;" aria-level="1">Discussions included SSO study process, potential OEM technology to mitigate SSO effects, and recent SSO events affecting multiple generators.</li> <li style="font-weight: 400;" aria-level="1">PLWG decided to table PGRR120 pending further discussion at the December meeting.</li> <li style="font-weight: 400;" aria-level="1">NERC Topics Roundtable includes discussions on hot topics such as NERC CIP-014-4 and TPL-008-1 Transmission Planning Performance Requirements for extreme weather.</li> <li style="font-weight: 400;" aria-level="1">An open action item involves reviewing and revising the term 'Load' in the Planning Guide to align with protocol section 2 terminology.</li> <li style="font-weight: 400;" aria-level="1">The group plans to review one section of the Planning Guide at each meeting, starting in December, and is seeking a sponsor for the revision request.</li> <li style="font-weight: 400;" aria-level="1">Expressions of gratitude for the group's work on NPRR1247 and other tasks throughout the year.</li> </ul> <h2><a href="/sharing/?token=375effeb-1b3e-4a30-9992-4f31b7d67ffe">▶️</a> 11 - Performance, Disturbance, Compliance Working Group - PDCWG - Kevin Bunch</h2> <ol start="11"> <li><a href="/storage/docs/2024/12/11.%20%20PDCWG%20Report%20to%20ROS_120524.pdf"> PDCWG Report to ROS_120524.pdf</a></li> </ol> <ul> <li style="font-weight: 400;" aria-level="1">Kevin Bunch discussed NPRR1257 and the load loss analysis.</li> <li style="font-weight: 400;" aria-level="1">He mentioned several events were identified by ERCOT operations in real-time.</li> <li style="font-weight: 400;" aria-level="1">ERCOT will present the load loss analysis at the next OWG and LFTF meetings.</li> <li style="font-weight: 400;" aria-level="1">The group reviewed typical frequency control metrics, which are updated monthly.</li> <li style="font-weight: 400;" aria-level="1">There were no FMEs reported for the month.</li> <li style="font-weight: 400;" aria-level="1">The IMFR is performing four times better than necessary.</li> <li style="font-weight: 400;" aria-level="1">Kevin confirmed he would not be chairing the PDCWG next year; Chad will continue in a leadership role.</li> </ul> <h3><a href="/sharing/?token=b9bec698-dc46-4f41-8a83-de250d6027fb">▶️</a> 11.1 - NOGRR271, Related to NPRR1257, Limit on Amount of RRS a Resource can Provide Using Primary Frequency Response - Possible Vote</h3> <ul> <li style="font-weight: 400;" aria-level="1">Motion to recommend approval of NPGRR271 as submitted added to the combo ballot.</li> </ul> <h2><a href="/sharing/?token=73ed68f5-6075-4192-9231-fd704c0ad398">▶️</a> 12 - Network Data Support Working Group - NDSWG - Gerardo Escamilla</h2> <ol start="12"> <li><a href="/storage/docs/2024/12/12.%20%20NDSWG_Report_To_ROS_11272024.pdf"> NDSWG_Report_To_ROS_11272024.pdf</a></li> </ol> <h3><a href="/sharing/?token=4d8354ed-6ff2-4a8b-a5b5-5b6b596da4bb">▶️</a> 12.1 - NPRR1234, Interconnection Requirements for Large Loads and Modeling Standards for Loads 25 MW or Greater - NDSWG - Possible Vote</h3> <ul> <li style="font-weight: 400;" aria-level="1">Report from last meeting on November 19, 2024, regarding modeling top lines and serious compensators.</li> <li style="font-weight: 400;" aria-level="1">Effort to match EMS system with ERCOT main system by evaluating zero impedance lines and removing series compensators.</li> <li style="font-weight: 400;" aria-level="1">ERCOT's breaker validation rules for NMMS model being updated, including PSSEID assignment to nodal breaker model.</li> <li style="font-weight: 400;" aria-level="1">Agreement needed on IDs for devices like breakers, lines, substations, shunts, and loads.</li> <li style="font-weight: 400;" aria-level="1">Update on NMMS and CIM upgrade project, go-live by Q1 2027 with a full redacted model for EMS import compatibility.</li> <li style="font-weight: 400;" aria-level="1">Vice chair nominations: Phil Hoffer from AEP and Teddi Flessner from STEC stepping up.</li> <li style="font-weight: 400;" aria-level="1">Next NDSWG meeting on December 17th will focus on discussing NPRR1234.</li> </ul> <h2><a href="/sharing/?token=ac1236b4-fb55-45e0-bc23-2f88ebf68380">▶️</a> 13 - Combo Ballot - Vote - Katie Rich</h2> <ul> <li style="font-weight: 400;" aria-level="1">Motion to approve the combo ballot carried with unanimous approval and no abstentions.</li> </ul> <img src="/storage/docs/2024/12/20241205%20ROS%20Combo%20Details.png" width="865" height="156" /> <img src="/storage/docs/2024/12/20241205%20ROS%20Combo%20Ballot.png" width="866" height="822" /> <h2><a href="/sharing/?token=0539c5af-6376-4409-9ffa-fb2a534ebf13">▶️</a> 14 - Voltage Profile Working Group - VPWG - Maribel Khayat</h2> <ol start="14"> <li><a href="/storage/docs/2024/12/14.%20%20VPWG_update_to_ROS_Nov.pdf"> VPWG_update_to_ROS_Nov.pdf</a></li> </ol> <ul> <li style="font-weight: 400;" aria-level="1">Held a meeting in November.</li> <li style="font-weight: 400;" aria-level="1">No voting items on the agenda.</li> <li style="font-weight: 400;" aria-level="1">Updated winter spring voltage profile issued, effective December 1st.</li> <li style="font-weight: 400;" aria-level="1">No generator performance report for the month.</li> <li style="font-weight: 400;" aria-level="1">Initiated VPWG procedure manual, finalization planned before year-end.</li> <li style="font-weight: 400;" aria-level="1">Discussed IBR voltage control challenges.</li> <li style="font-weight: 400;" aria-level="1">Leadership changes voted on; Weiwei Hu from AEN and Scot Williams from Oncor will be the chair and vice chair respectively next year.</li> </ul> <h2><a href="/sharing/?token=f0521a96-fb6b-4bc5-9c4f-46e0b41860e6">▶️</a> 15 - Inverter Based Resources Working Group - IBRWG - Julia Matevosyan</h2> <ol start="15"> <li><a href="/storage/docs/2024/12/15.%20%20IBRWG%20Report%20to%20ROS%20120524.pdf"> IBRWG Report to ROS 120524.pdf</a></li> </ol> <ul> <li style="font-weight: 400;" aria-level="1">Discussion on PFR performance under deep curtailment for IBRs continued from October. Another manufacturer confirmed the existence of a minimum technical limit for wind resources, below which IBR performance degrades.</li> <li style="font-weight: 400;" aria-level="1">Nick Miller from HickoryLedge provided insights on why performance below this limit isn't possible.</li> <li style="font-weight: 400;" aria-level="1">Sunwook provided an update on the status and next steps for NOGRR and PGRR documents.</li> <li style="font-weight: 400;" aria-level="1">A coordination item between SPWG and IBRWG was discussed regarding the multiple right through capability of IBRs and the auto reclosing schemes used by transmission owners.</li> <li style="font-weight: 400;" aria-level="1">A survey conducted by SPWG on auto reclosing strategies highlighted the need for site-specific settings and better coordination between IBR developers and TDSPs.</li> <li style="font-weight: 400;" aria-level="1">The possibility of including coordination language in the ERCOT Resource Integration Handbook was proposed, with the item remaining open for further discussion.</li> <li style="font-weight: 400;" aria-level="1">NERC and other industry updates included MISO's proposal for grid forming requirements for battery storage to be implemented in January.</li> <li style="font-weight: 400;" aria-level="1">Three new NERC standards, PRC-028, PRC-029, and PRC-030, have been filed with FERC, focusing on data measurement, right through standards for IBRs, and root cause analysis for disturbances.</li> <li style="font-weight: 400;" aria-level="1">NERC is starting a new milestone focused on modeling with several open projects, and a technical workshop is scheduled for January 15th and 16th.</li> <li style="font-weight: 400;" aria-level="1">Next meeting scheduled for next Friday.</li> </ul> <h2><a href="/sharing/?token=e7b885bc-fc29-4ad2-889e-c6248f6e575c">▶️</a> 16 - System Protection Working Group - SPWG - Mark McChesney</h2> <a href="/storage/docs/2024/12/16-spwg-ros-update-12-05-2024.pdf">16-spwg-ros-update-12-05-2024.pdf</a> <ul> <li style="font-weight: 400;" aria-level="1">Leadership election held; Mark McChesney of Oncor continues as chair for 2025; Jordan Watkins, CNP, nominated as Vice chair.</li> <li style="font-weight: 400;" aria-level="1">Updates received from Texas RE regarding operation statistics through Q2 of 2024.</li> <li style="font-weight: 400;" aria-level="1">Updates provided on NERC PRC activities and standards.</li> <li style="font-weight: 400;" aria-level="1">Reviewed an IBR reclosing survey and practices; limited and inconsistent responses received.</li> <li style="font-weight: 400;" aria-level="1">Discussion on IEEE 2800 standards including number of reclosing events for IBRs and maximum phase angle jump.</li> <li style="font-weight: 400;" aria-level="1">Reviewed comparison of case build statistics between steady state working group and short circuit model.</li> <li style="font-weight: 400;" aria-level="1">Presentation on IBR challenges, focusing on lack of negative sequence current injection and issues with directional elements during phaser-based protection.</li> </ul> <h2><a href="/sharing/?token=48e24c48-c0d9-41cb-90d1-42a073b5fb68">▶️</a> 17 - Steady State Working Group - SSWG - William Robertson</h2> <a href="/storage/docs/2024/12/17-sswg-report-to-ros-12-5-2024.pdf">17-sswg-report-to-ros-12-5-2024.pdf</a> <ul> <li style="font-weight: 400;" aria-level="1">TSPs submitting and verifying data to ERCOT was due today.</li> <li style="font-weight: 400;" aria-level="1">Reviewed calendar with due dates and timelines for 2025 SSWG case building process.</li> </ul> <h2><a href="/sharing/?token=af834856-0cc6-40db-a6f3-f336bce42522">▶️</a> 18 - Other Business - Katie Rich</h2> <h3><a href="/sharing/?token=75e5597c-365d-451c-8da9-2739c165de84">▶️</a> 18.1 - Review Open Action Items List</h3> <ul> <li style="font-weight: 400;" aria-level="1">Julia reported that she is still working on the first open action item at IBRWG and it is close to completion.</li> <li style="font-weight: 400;" aria-level="1">NDSWG reported that they are still working on the ICCP handbook.</li> <li style="font-weight: 400;" aria-level="1">EPA regulations involve coordination with WMS, to be discussed by WMWG on January 30th.</li> <li style="font-weight: 400;" aria-level="1">TAC assignment discussions: issue resolved with NPRR1238, but pending clarity on ERCOT's proposal for 1238.</li> <li style="font-weight: 400;" aria-level="1">Golden Spread's frustration with lack of response from ERCOT regarding NPRR1238, considering moving forward without ERCOT's comments.</li> <li style="font-weight: 400;" aria-level="1">Resolved to include an update indicating TAC assignment seriousness while awaiting NPRR1238 results.</li> <li style="font-weight: 400;" aria-level="1">Work on the September 60E2 event deemed complete, pending any disagreements.</li> </ul> <h3><a href="/sharing/?token=89b715a7-9cdc-47b6-b631-5a0c3ff54400">▶️</a> 18.2.1 - Black Start Working Group - BSWG</h3> <ul> <li style="font-weight: 400;" aria-level="1">Discussion on keeping the Black Start service as an open action item.</li> <li style="font-weight: 400;" aria-level="1">Focus on addressing use of ESRs in the Black Start service.</li> <li style="font-weight: 400;" aria-level="1">Move away from parking lot items and prefer direct assignments to the BSWG</li> <li style="font-weight: 400;" aria-level="1">Plan to save items for updates at the January meeting.</li> </ul> <h3><a href="/sharing/?token=56aaf7f3-cc4d-49fb-8701-07e3e01c6949">▶️</a> 18.2.3 - Operations Training Working Group OTWG</h3> <ul> <li style="font-weight: 400;" aria-level="1">No one present to discuss feedback from OTWG about NEXSTART resources.</li> </ul> <h2><a href="/sharing/?token=49331485-2824-424e-801e-6f150d77fde4">▶️</a> 19 - Adjourn - Katie Rich</h2> <ul> <li style="font-weight: 400;" aria-level="1">Meeting Adjourned</li> </ul>