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Meeting Summary - 02/06/2025 ROS Meeting

Grid Monitor AI
02/06/2025

<div class="news-image-container"><img src="/storage/docs/2025/02/02-06-2025-ROS-Hero.png" width="800" height="598" /></div> <h3><a href="/sharing/?token=ae2304b2-a14f-4b8d-8d5a-74d4c9de7397">▶️</a>0 - Validation for ROS Standing Representatives - Suzy Clifton</h3> <h3><a href="/sharing/?token=a3ee41b3-6cf5-490c-b595-4e3e758c9f44">▶️</a>1 - Antitrust Admonition - Katie Rich</h3> <h3><a href="/sharing/?token=60e7a4e6-9781-4121-93a0-787795a38370">▶️</a>2 - Agenda Review - Katie Rich</h3> <h3><a href="/sharing/?token=dda9b32f-ea9a-4295-aa69-649889133846">▶️</a>3 - Approval of ROS Meeting Minutes (Possible Vote) - Katie Rich</h3> <h4><a href="/sharing/?token=f05a6b95-ebe0-4a34-b438-8512666dd0c9">▶️</a>3.1 - January 9, 2025 - Katie Rich</h4> <ul> <li style="font-weight: 400;" aria-level="1">Motion to approve the January 9, 2025 meeting minutes as presented added to the combo ballot.</li> <ul> <li style="font-weight: 400;" aria-level="2">An error was initially made in the leadership listing for ROS by Katie Rich.</li> <li style="font-weight: 400;" aria-level="2">The error has been corrected to show Sandeep as the vice chair of ROS.</li> <li style="font-weight: 400;" aria-level="2">A revised version of the minutes has been posted on the website.</li> <li style="font-weight: 400;" aria-level="2">The revised version of the minutes will be voted on for approval.</li> <li style="font-weight: 400;" aria-level="2">No questions were posed regarding this update.</li> <li style="font-weight: 400;" aria-level="2">Approval of the revised minutes will be included in the first item of their combo ballot.</li> </ul> </ul> <h3><a href="/sharing/?token=51f77287-3d11-470a-975c-b199429d61bc">▶️</a>4 - Technical Advisory Committee (TAC) Update - Katie Rich</h3> <ul> <li style="font-weight: 400;" aria-level="1">TAC leadership approved all subcommittee leadership, including Katie Rich and Sandeep Borkar.</li> <li style="font-weight: 400;" aria-level="1">Martha Henson is creating a streamlined goal list for TAC discussion, offering a preview to subcommittee leaders for feedback.</li> <li style="font-weight: 400;" aria-level="1">Decision on ROS goals postponed until Martha Henson’s input is reviewed.</li> <li style="font-weight: 400;" aria-level="1">TAC approved NPRR1257 and NOGRR2171, limiting a single RRS resource's primary frequency response to 57 megawatts.</li> <li style="font-weight: 400;" aria-level="1">Ancillary service methodology changes approved.</li> <li style="font-weight: 400;" aria-level="1">Mention of the ROS working group leadership slide.</li> </ul> <h3><a href="/sharing/?token=8fb1504c-a9f7-49cb-b9bd-c066e02c292e">▶️</a>5 - 2025 ROS Working Group Leadership - Vote - Katie Rich</h3> <a href="/storage/docs/2025/02/05-2025-ros-wg-leadership-nominated.pdf">05-2025-ros-wg-leadership-nominated.pdf</a> <ul> <li style="font-weight: 400;" aria-level="1">Motion to approve the 2025 ROS Working Group and Task Force leadership as presented added to the combo ballot.</li> <ul> <li style="font-weight: 400;" aria-level="2">Need for support for PDCWG vice chair position.</li> <li style="font-weight: 400;" aria-level="2">Interested individuals should contact Chad Mulholland, Katie Rich, or Sandeep Borkar.</li> <li style="font-weight: 400;" aria-level="2">Working group materials should be submitted by Thursday prior to meetings for review.</li> <li style="font-weight: 400;" aria-level="2">Ensure working group leadership is informed about referrals for prompt action.</li> <li style="font-weight: 400;" aria-level="2">Reminders may be sent if materials are not posted on time.</li> <li style="font-weight: 400;" aria-level="2">Motion to approve working group leadership to be added to the combo ballot.</li> </ul> </ul> <h3><a href="/sharing/?token=525cf062-4e84-40ef-8f78-3393110b7bd4">▶️</a>6 - 2025 ROS Goals - Possible Vote - Katie Rich</h3> <a href="/storage/docs/2025/02/06-2024-ros-goals-tac-approved-03272024.pdf">06-2024-ros-goals-tac-approved-03272024.pdf</a> <ul> <li style="font-weight: 400;" aria-level="1">There is a goal of streamlining processes, potentially consolidating and adjusting wording to avoid annual reevaluation.</li> <li style="font-weight: 400;" aria-level="1">Katie Rich opened the floor for comments on the goals and how they align with TAC’s vision.</li> <li style="font-weight: 400;" aria-level="1">Feedback from Martha Henson is expected by next week, ahead of the next meeting.</li> <li style="font-weight: 400;" aria-level="1">Sandeep Borkar questioned whether goal number seven regarding Geomagnetic Disturbance (GMD) requirements has been met with existing protocols.</li> <li style="font-weight: 400;" aria-level="1">Cyrus Reed raised concerns about whether goal number six sufficiently includes large and controllable load resources, given the increase in large loads.</li> <li style="font-weight: 400;" aria-level="1">Caitlin Smith emphasized the importance of having standing goals that can persist over multiple years, while action items may be checked off annually.</li> <li style="font-weight: 400;" aria-level="1">The idea is to separate overarching goals from annual action items to hold ROS accountable.</li> <li style="font-weight: 400;" aria-level="1">Clayton Stice suggested that bullet six should address large non-load resources due to potential new regulations, questioning its current scope.</li> <li style="font-weight: 400;" aria-level="1">There is ongoing work on related action items such as PGRR115 and others.</li> </ul> <h3><a href="/sharing/?token=4101a546-22a0-49b4-bf28-51a154b7ff6b">▶️</a>7 -  ERCOT Reports - 9:40 a.m.</h3> <h4><a href="/sharing/?token=308f45d4-1471-4422-8e42-1524ff2c2caf">▶️</a>7.1 - Operations Report - Alex Lee</h4> <a href="/storage/docs/2025/02/december-2024-ercot-operations-report-public.pdf">december-2024-ercot-operations-report-public.pdf</a> <ul> <li style="font-weight: 400;" aria-level="1">December's unofficial peak demand was 60,235 megawatts, on December 11.</li> <li style="font-weight: 400;" aria-level="1">This demand was 3,259 megawatts higher than the projected PGRR123 December peak demand.</li> <li style="font-weight: 400;" aria-level="1">ERCOT experienced one frequency event due to a unit trip, with frequency dropping to 59.93 hertz and recovery within four minutes.</li> <li style="font-weight: 400;" aria-level="1">No Emergency Response Service (ECRS) or Responsive Reserve Service (RRS) was deployed in December.</li> <li style="font-weight: 400;" aria-level="1">One DC tie curtailment occurred on the Laredo DC tie on December 23, caused by a forced outage.</li> <li style="font-weight: 400;" aria-level="1">There were 30 Reliability Unit Commitment (RUC) events, primarily to handle South Texas and the Valley IROL.</li> <li style="font-weight: 400;" aria-level="1">No Operational Conditions Notices (OCNs) were reported.</li> <li style="font-weight: 400;" aria-level="1">An advisory was issued for a temporary unavailability in dynamic stability assessment, related to a T-stat issue lasting 30 minutes.</li> <li style="font-weight: 400;" aria-level="1">High congestion areas included the Panhandle and Hamilton, with 23 days of congestion, and Nelson Sharpe, West Texas, and Zapata with 16 days.</li> <li style="font-weight: 400;" aria-level="1">Several areas experienced binding congestion, including North Edinburg, Valley, and South Texas (import/export).</li> <li style="font-weight: 400;" aria-level="1">Discussion prompted by Cyrus Reed about winter storm analysis, with plans to present findings in the next meeting.</li> <li style="font-weight: 400;" aria-level="1">Information from R&M and board meeting includes slides comparing recent winter storms to historical data.</li> </ul> <h4><a href="/sharing/?token=d508d63b-e043-4ebb-8545-7615bd4f7a81">▶️</a>7.2 - System Planning Report - Ping Yan</h4> <a href="/storage/docs/2025/02/systemplanningros_dec2024.pdf">systemplanningros_dec2024.pdf</a> <ul> <li style="font-weight: 400;" aria-level="1">ERCOT posted a document comparing the 345-kV plan and the 765-kV plan studied in last year's regional transmission plan.</li> <li style="font-weight: 400;" aria-level="1">The comparison document includes cost analysis and benefits of both plans.</li> <li style="font-weight: 400;" aria-level="1">Additional studies, like stability related comparisons, are also included in the posted document.</li> </ul> <h3><a href="/sharing/?token=e1eb18d3-91e0-4459-9fa9-711b4cae2a49">▶️</a>8 - New Protocol Revision Subcommittee (PRS) Referrals (Vote) Katie Rich - 9:50 a.m.</h3> <h4><a href="/sharing/?token=ebc8cd34-54d9-4cb1-ac53-92a8d796807d">▶️</a>8.1 - NPRR1265, Unregistered Distributed Generator</h4> <ul> <li style="font-weight: 400;" aria-level="1">Motion to request PRS continue to table NPRR1265 for further review by NDSWG added to the combo ballot.</li> <ul> <li style="font-weight: 400;" aria-level="2">The proposal is in response to House Bill 3390, aiming to provide ERCOT with more visibility into smaller DG.</li> <li style="font-weight: 400;" aria-level="2">Plans to use this information in planning studies and cases.</li> <li style="font-weight: 400;" aria-level="2">Discussion to be tabled at the ROS and remanded over to the NDSWG for further input.</li> <li style="font-weight: 400;" aria-level="2">Process for collecting necessary DG information to be discussed with NDSWG.</li> <li style="font-weight: 400;" aria-level="2">Preparations for presentations and communication with NDSWG already in place.</li> <li style="font-weight: 400;" aria-level="2">Approval to add NPRR1265 to the combo ballot confirmed by the attendees.</li> </ul> </ul> <h3><a href="/sharing/?token=f341b735-1d4b-4d7b-ad56-82823157f859">▶️</a>9 - Revision Requests Tabled at PRS and Referred to ROS - Possible Vote - Katie Rich</h3> <h4><a href="/sharing/?token=c57f9d2b-6b1d-4519-b99a-2f8ea0d0aeae">▶️</a>9.1 - NPRR1229, Real-Time Constraint Management Plan Energy Payment</h4> <ul> <li style="font-weight: 400;" aria-level="1">Motion to advise PRS that ROS has concluded discussion of NPRR1229 and has determined the issues are financial in nature and has no recommendation at this time added to the combo ballot.</li> <ul> <li style="font-weight: 400;" aria-level="2">NPRR1229 has been filed by STEC and discussed frequently at WMWG; another discussion is pending before returning to WMS.</li> <li style="font-weight: 400;" aria-level="2">The outstanding issues concerning NPRR1229 are primarily financial, not warranting ROS review.</li> <li style="font-weight: 400;" aria-level="2">It was discussed that no changes to ROS procedures are needed due to NPRR1229, only financial considerations.</li> <li style="font-weight: 400;" aria-level="2">Participants acknowledged potential financial penalties for consumers affecting decision-making but agreed it doesn't necessitate ROS action.</li> <li style="font-weight: 400;" aria-level="2">Clear wording was finalized to convey that ROS has concluded its discussion, identifying the remaining issues as financial, with no recommendation forthcoming.</li> <li style="font-weight: 400;" aria-level="2">Decision made to remove NPRR1229 from next month's ROS agenda, concluding ROS's review.</li> </ul> </ul> <h3><a href="/sharing/?token=e536458b-50ad-4966-8b26-7c6a11efe9ff">▶️</a>10 - Revision Requests Tabled at ROS - Possible Vote - Katie Rich</h3> <ul> <li style="font-weight: 400;" aria-level="1">Agenda items 10 and 11 were discussed together.</li> </ul> <h3><a href="/sharing/?token=4718696e-5a4f-43fe-9704-6d8fdb263eb6">▶️</a>11 - NPRR1264, Creation of a New Energy Attribute Certificate Program(Possible Vote) Katie Rich</h3> <ul> <li style="font-weight: 400;" aria-level="1">Agenda items 10 and 11 were discussed together.</li> <li style="font-weight: 400;" aria-level="1">NPRR1264 was referred from PRS to WMS.</li> <li style="font-weight: 400;" aria-level="1">A vote is anticipated for March WMS meeting.</li> <li style="font-weight: 400;" aria-level="1">Three associated revision requests under item 10 linked to NPRR1264</li> <li style="font-weight: 400;" aria-level="1">Decision to wait for WMS's action before further addressing associated RRs.</li> <li style="font-weight: 400;" aria-level="1">Consensus reached without need for official action at this time.</li> </ul> <h3><a href="/sharing/?token=56b6a195-0a9c-4aaf-8072-691906e9d1d8">▶️</a>12 - Operations Working Group - OWG - OWG Leadership</h3> <a href="/storage/docs/2025/02/12-owg_ros_20250206.pdf">12-owg_ros_20250206.pdf</a> <h4><a href="/sharing/?token=7cc104d7-6794-481c-91fb-189f5923ded8">▶️</a>12.1 - NPRR1070, Planning Criteria for GTC Exit Solutions - OWG, PLWG - Possible Vote</h4> <ul> <li style="font-weight: 400;" aria-level="1">No changes have been made to NPRR1070 at this time.</li> <li style="font-weight: 400;" aria-level="1">The item remains tabled, pending final work.</li> </ul> <h4><a href="/sharing/?token=fd1b4013-69f7-4ff0-bb35-7b6eff1d5219">▶️</a>12.2 - NPRR1238, Voluntary Registration of Loads with Curtailable Load Capabilities - OWG - Possible Vote</h4> <ul> <li style="font-weight: 400;" aria-level="1">Discussion on NPRR1238 related to voluntary registration of loads with curtailable load capabilities.</li> <li style="font-weight: 400;" aria-level="1">ERCOT has yet to file comments regarding NPRR1238.</li> <li style="font-weight: 400;" aria-level="1">A presentation on the topic was given at the last OWG meeting.</li> <li style="font-weight: 400;" aria-level="1">The presentation is available for review on the OWG's meeting site from January.</li> </ul> <h4><a href="/sharing/?token=dc6c8826-bf5c-4c8d-8c39-eeb331dd36db">▶️</a>12.3 - NOGRR265, Related to NPRR1238, Voluntary Registration of Loads with Curtailable Load Capabilities - OWG - Possible Vote</h4> <ul> <li style="font-weight: 400;" aria-level="1">Awaiting comments from ERCOT, expected by next OWG meeting.</li> <li style="font-weight: 400;" aria-level="1">NPRR1238 and NOGRR265 tabled at OWG until comments are received.</li> <li style="font-weight: 400;" aria-level="1">Current OWG leadership nominations remain: Chair (Rickey Floyd) and Vice Chair (Tyler Springer) positions unchanged.</li> <li style="font-weight: 400;" aria-level="1">Decision to handle leadership without a subchair for 2025.</li> <li style="font-weight: 400;" aria-level="1">No new business was discussed in the OWG report for January.</li> <li style="font-weight: 400;" aria-level="1">Comments for NPRR will be posted soon and discussed next week at OWG.</li> </ul> <h4><a href="/sharing/?token=8c983471-bb8a-46b0-be39-a6556a08f2ea">▶️</a>12.4 - Break</h4> <h3><a href="/sharing/?token=cfe21c53-b209-48c4-b39e-0a8b414a8576">▶️</a>13 - Network Data Support Working Group - NDSWG - NDSWG Leadership</h3> <a href="/storage/docs/2025/02/13-ndswg_report_to_ros_020625_rg.pdf">13-ndswg_report_to_ros_020625_rg.pdf</a> <h4><a href="/sharing/?token=00cd4833-2418-4ad2-a60b-5b4f859f4a9e">▶️</a>13.1 - NPRR1234, Interconnection Requirements for Large Loads and Modeling Standards for Loads 25 MW or Greater - NDSWG - Possible Vote</h4> <ul> <li style="font-weight: 400;" aria-level="1">Motion to endorse NPRR1234 as amended by the 1/24/25 ERCOT comments added to the combo ballot.</li> <ul> <li style="font-weight: 400;" aria-level="2">New comments on NPRR1234 were posted, necessitating further review despite previous endorsement.</li> <li style="font-weight: 400;" aria-level="2">CIM16 test model for NMMS upgrade expected to be available by August 2025.</li> <li style="font-weight: 400;" aria-level="2">Discussion on 15-minute rating and reliability equivalence not acceptable by ERCOT; reports will be sent to TSPs for mitigation.</li> <li style="font-weight: 400;" aria-level="2">The latest comments on NPRR1234 will be discussed in the next meeting.</li> <li style="font-weight: 400;" aria-level="2">Martha Henson suggests approving ERCOT January 24 comments to NPRR1234.</li> <li style="font-weight: 400;" aria-level="2">The NDSWG might review ERCOT's comments to confirm they don't affect the scope and can move in parallel.</li> <li style="font-weight: 400;" aria-level="2">General accord on moving NPRR1234 to the combo ballot, unless objections arise.</li> <li style="font-weight: 400;" aria-level="2">Bill Blevins noted that prior work in PLWG simplified some aspects of the NPRR.</li> <li style="font-weight: 400;" aria-level="2">Bob Whitmire agrees to NPRR1234 moving out of ROS but sees pricing issues at WMS.</li> <li style="font-weight: 400;" aria-level="2">Bill Barnes supports moving NPRR1234 forward, with a possibility of increasing fees in a future meeting.</li> <li style="font-weight: 400;" aria-level="2">Bill Blevins noted ERCOT is reviewing interconnection fees due to increased activities and work.</li> </ul> </ul> <h3><a href="/sharing/?token=941d475a-5c54-4698-b123-797ac0c6fd19">▶️</a>14 - Planning Working Group - PLWG - PLWG Leadership</h3> <a href="/storage/docs/2025/02/14-planning-working-group-report_02062025.pdf">14-planning-working-group-report_02062025.pdf</a> General Notes <ul> <li style="font-weight: 400;" aria-level="1">ERCOT changed the inflation rate from 2% to 2.2%, with plans to post the final document soon.</li> <li style="font-weight: 400;" aria-level="1"> Align term 'load' in planning guides with Protocol Section 2. Edits to Section 4 of ERCOT planning guide will continue into 2025.</li> </ul> <h4><a href="/sharing/?token=cd32a8b8-7ea9-4948-8e83-fe0cb4a67726">▶️</a>14.1 - PGRR115, Related to NPRR1234, Interconnection Requirements for Large Loads and Modeling Standards for Loads 25 MW or Greater - PLWG - Possible Vote</h4> <ul> <li style="font-weight: 400;" aria-level="1">Motion to recommend approval of PGRR115 as amended by the 2/5/25 CenterPoint comments added to the combo ballot.</li> <ul> <li style="font-weight: 400;" aria-level="2">PLWG met on January 29 to discuss PGRR115 interconnection requirements for large load and modeling standards for loads 25 megawatts or greater.</li> <li style="font-weight: 400;" aria-level="2">Reviewed comments from ERCOT Steel Mill’s and ERCOT's own comments.</li> <li style="font-weight: 400;" aria-level="2">PLWG provided desktop edits and submitted 115PGRR-19 comments with majority consensus.</li> <li style="font-weight: 400;" aria-level="2">ERCOT Steel Mills suggested language changes which were not accepted by the majority.</li> <li style="font-weight: 400;" aria-level="2">PLWG completed work with PGRR115 and recommends ROS consider approving this revision request.</li> </ul> </ul> <h4><a href="/sharing/?token=393a5f4b-9374-47e8-85ac-cc0c987e5865">▶️</a> 14.1 - PGRR115 Additional Discussion</h4> <ul> <li style="font-weight: 400;" aria-level="1">Consensus language for PGRR115 revisions includes edits in 3 sections. Emphasis on language regarding 'load commissioning plan'.</li> <li style="font-weight: 400;" aria-level="1">Google comments proposed removal of one gigawatt cap for large loads. ERCOT commissioned a study to determine the appropriate limit.</li> <li style="font-weight: 400;" aria-level="1">Bill Blevin’s believes current language covers concerns; alternate language might have unintended consequences.</li> <li style="font-weight: 400;" aria-level="1">Motion considered to adopt PLWG revised language and CenterPoint comments. Open to further discussion on unresolved items. Agreement to be approved as amended by CenterPoint comments.</li> </ul> <h4><a href="/sharing/?token=29991cd3-c545-42bc-9a99-d661fc046fa1">▶️</a>14.2 - PGRR119, Stability Constraint Modeling Assumptions in the Regional Transmission Plan - PLWG - Possible Vote</h4> <ul> <li style="font-weight: 400;" aria-level="1">Motion to recommend approval of PGRR119 as amended by the 1/22/25 Joint Commenters comments added to the combo ballot.</li> <ul> <li style="font-weight: 400;" aria-level="2">PLWG reviewed comments submitted by joint commenters on PGRR119.</li> <li style="font-weight: 400;" aria-level="2">Consensus was reached within PLWG regarding PGRR119.</li> <li style="font-weight: 400;" aria-level="2">PLWG completed work on PGRR119.</li> <li style="font-weight: 400;" aria-level="2">Recommendation for ROS to consider approval of the revision request.</li> </ul> </ul> <h4><a href="/sharing/?token=1b9529c6-ee5e-438a-9d31-a0e35a35a608">▶️</a> 14.2 - PGRR119 Additional Discussion </h4> <h4><a href="/sharing/?token=c06412ce-7a35-4818-8786-798affebafd1">▶️</a>14.3 - PGRR120, SSO Prevention for Generator Interconnection - PLWG - DWG - Possible Vote</h4> <ul> <li style="font-weight: 400;" aria-level="1">PGRR120 remains tabled.</li> <ul> <li style="font-weight: 400;" aria-level="2">ERCOT draft comments and AEP comments on PGRR120 were reviewed.</li> <li style="font-weight: 400;" aria-level="2">Discussion included ERCOT's edits for explicit applicability to generation transmission resources.</li> <li style="font-weight: 400;" aria-level="2">AEP proposed language preventing new generation resources from interconnecting to a series compensated circuit if the system reinforcement prevents an N-1 contingency event from causing radial generation.</li> </ul> </ul> <h4><a href="/sharing/?token=931dc644-02d8-4fb0-a298-f12acf51e39e">▶️</a>14.4 - PGRR122, Reliability Performance Criteria for Loss of Load - DWG - PLWG - Possible Vote</h4> <ul> <li style="font-weight: 400;" aria-level="1">PLWG reviewed AEP comments, concerns about term 'non consequential load loss'. Maintenance outage events vs nonrelated N-1 events were discussed. </li> <li style="font-weight: 400;" aria-level="1">PGRR122 tabled pending further discussion at February PLWG meeting. </li> </ul> <h4><a href="/sharing/?token=44f9c1fb-ef16-4ac4-9667-7780e3e49cf7">▶️</a>15 - Inverter Based Resources Working Group - IBRWG - IBRWG Leadership</h4> <a href="https://ercot-control-docs.s3.us-west-2.amazonaws.com/03/15-2025_feb_ros_nogrr272_pgrr121_ercot.pdf">15-2025_feb_ros_nogrr272_pgrr121_ercot</a> <h4><a href="/sharing/?token=0cb48b86-ed3c-4303-ab70-2ef99a3ad3cd">▶️</a>15.1 - NOGRR272, Advanced Grid Support Requirements for Inverter-Based ESRs - DWG - IBRWG - Possible Vote - Fred Huang</h4> <ul> <li style="font-weight: 400;" aria-level="1">Fred mentioned comments filed and anticipated coverage by Katie.</li> <li style="font-weight: 400;" aria-level="1">The presentation involves collaboration with the IBRWG and DWG working groups.</li> <li style="font-weight: 400;" aria-level="1">Emphasis was placed on summarizing and updating on the proposal and its anticipated impact.</li> <li style="font-weight: 400;" aria-level="1">ERCOT achieved a 75% penetration of inverter-based resources in 2024.</li> <li style="font-weight: 400;" aria-level="1">Current connections: 40 GW wind, 30 GW solar, 10 GW energy storage.</li> <li style="font-weight: 400;" aria-level="1">Future expectations: additional 12 GW wind, 30 GW solar, 18 GW energy storage within 3-5 years.</li> <li style="font-weight: 400;" aria-level="1">Discussion on supporting further inverter-based resource integration for reliability and stability.</li> <li style="font-weight: 400;" aria-level="1">Several strategies already adopted to support 80 GW of inverter-based resources.</li> <li style="font-weight: 400;" aria-level="1">Strategies include synchronous condensers, IEEE standard adoption, accurate assessment models.</li> <li style="font-weight: 400;" aria-level="1">Challenges noted include increasing stability issues and grid constraints.</li> <li style="font-weight: 400;" aria-level="1">Significant impact from past events shows the need for better disturbance handling.</li> <li style="font-weight: 400;" aria-level="1">Model limitations can affect assessment accuracy; more detailed assessments may be required.</li> <li style="font-weight: 400;" aria-level="1">Low system strength is emerging as a critical issue with current integrations.</li> <li style="font-weight: 400;" aria-level="1">Proposed solutions align with industry trends and aim to support stable grid operations.</li> </ul> <h4><a href="/sharing/?token=c892ca58-3c9a-4c68-be79-2bd2f6189e9a">▶️</a>15.2 - PGRR121, Related to NOGRR272, Advanced Grid Support Requirements for Inverter-Based ESRs - DWG - IBRWG - Possible Vote - Fred Huang</h4> <ul> <li style="font-weight: 400;" aria-level="1">Proposal focuses on new energy storage systems; no retrofit requirements.</li> <li style="font-weight: 400;" aria-level="1">Support provided when resources have capacity or are within design capability.</li> <li style="font-weight: 400;" aria-level="1">No requirement for maintaining extra short circuit current capability than currently needed.</li> <li style="font-weight: 400;" aria-level="1">Proposal aims to have minimal impact on commercial operation.</li> <li style="font-weight: 400;" aria-level="1">Verification through proposal model quality and unit validation tests similar to existing inverters.</li> <li style="font-weight: 400;" aria-level="1">Proposal aligns with current IBR performance standards with no additional requirements.</li> <li style="font-weight: 400;" aria-level="1">Highlighted the primary benefit is to provide the grid with its system strength improvement and the grid stability</li> <li style="font-weight: 400;" aria-level="1">Acknowledgment of potential commercial operation impacts.</li> <li style="font-weight: 400;" aria-level="1">Discussion on whether requirements should be mandatory or incentivized.</li> <li style="font-weight: 400;" aria-level="1">Need for specific compliance obligations and proposed effective date considerations.</li> <li style="font-weight: 400;" aria-level="1">Bob Helton suggests broader policy discussion involving WMS and not limited to ROS.</li> <li style="font-weight: 400;" aria-level="1">Consideration for ESR policy concern regarding mandatory requirements.</li> <li style="font-weight: 400;" aria-level="1">NPRR being drafted to define performance standards and terms for a contracted service.</li> <li style="font-weight: 400;" aria-level="1">Open question on technical requirements to better draft the NPRR.</li> <li style="font-weight: 400;" aria-level="1">Concern about compliance and performance obligations in vague language of NOGRR.</li> <li style="font-weight: 400;" aria-level="1">Fred indicates planned red line DWG procedure manual draft for IBRWG and DWG with harmonization considered post-ROS discussion.</li> </ul> <h3><a href="/sharing/?token=bee24687-776d-4bf2-b5fd-c6e46bb430cd">▶️</a>16 - Combo Ballot - Vote - Katie Rich</h3> <ul> <li style="font-weight: 400;" aria-level="1">Motion to approve combo ballot as presented passed unanimously with no abstentions.</li> </ul> <div class="news-image-container"><img src="/storage/docs/2025/02/02-06-2025-Ros-Combo-items.png" width="802" height="236" /></div> <div class="news-image-container"><img src="/storage/docs/2025/02/02-06-2025-ROS-combo.png" width="800" height="816" /></div> <h3>17-19 - Not Discussed</h3> <h3><a href="/sharing/?token=7eb1fdd9-99cd-4546-9f0b-2ce8d9cd19d7">▶️</a>20 - Other Business - Katie Rich</h3> <h4><a href="/sharing/?token=46f64f36-bcd0-465f-9dab-32890399a9e1">▶️</a>20.1 - Review Open Action Items List</h4> <ul> <li style="font-weight: 400;" aria-level="1">The September 6 event was presented to TAC last month, no opposition to removing it from the action items list.</li> <li style="font-weight: 400;" aria-level="1">Confirmation received to remove the event from the list.</li> <li style="font-weight: 400;" aria-level="1">The only remaining issue discussed with TAC was the Black Start service.</li> <li style="font-weight: 400;" aria-level="1">KTC 15.5 is still under the Black Start working group, all other items are done and complete.</li> <li style="font-weight: 400;" aria-level="1">Consideration to revise goals and possibly reduce open action items to track throughout the year.</li> </ul> <h3>20.2.0 - 20.2.4 - Not Discussed</h3> <h3><a href="/sharing/?token=a8ef4f4b-90bd-4178-953c-e4821140d247">▶️</a>21 - Adjourn - Katie Rich</h3>