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Meeting Summary - 08/01/24 ROS Meeting

Grid Monitor AI
08/02/2024

1 - Antitrust Admonition - Katie Rich 2 - Agenda Review - Katie Rich 3 - Approval of ROS Meeting Minutes - Possible Vote - Katie Rich <a href="/sharing/?token=165e0fb7-0810-47ca-922d-83b1418c6d37">3.1</a> - July 11, 2024 <ul> <li style="font-weight: 400;" aria-level="1">Confirmation to add meeting minutes to the combo ballot.</li> </ul> <a href="/sharing/?token=350b4dcc-d5e8-43bc-8fb4-bfef905b5587">4</a> - Technical Advisory Committee - TAC - Update - Katie Rich <ul> <li style="font-weight: 400;" aria-level="1">NPRR1230 approved: sets transmission shadow price caps for IROL, effective October 1 with 30-day market notice period starting October 2.</li> <li style="font-weight: 400;" aria-level="1">Discussion on NOGRR245: ongoing work between ERCOT and joint commenters on exemption process bifurcation, will move to subsequent NOGRR with board priority.</li> <li style="font-weight: 400;" aria-level="1">Expect updates at August R&M committee and Board meeting.</li> </ul> <a href="/sharing/?token=0b4b5995-884b-4055-96f7-09a4b5688c35">5</a> - ERCOT Reports <a href="/sharing/?token=2e1bbb79-7729-47db-abc1-4ba0f6e3d9b9">5.1</a> - Operations Report (June) - Alex Lee <ul> <li style="font-weight: 400;" aria-level="1">Peak demand of 79,698 MW on June 30, about 1128 MW less than the previous year's June peak.</li> <li style="font-weight: 400;" aria-level="1">Wind generation record of 27,881 MW on June 17.</li> <li style="font-weight: 400;" aria-level="1">Solar generation record of 19,395 MW on June 22.</li> <li style="font-weight: 400;" aria-level="1">Four frequency events in June related to unit trips.</li> <li style="font-weight: 400;" aria-level="1">No ECRS or RRS deployments.</li> <li style="font-weight: 400;" aria-level="1">Three DC tie curtailments.</li> <li style="font-weight: 400;" aria-level="1">15 HRUC commitments related to capacity and constraints.</li> </ul> <a href="/sharing/?token=40113bba-790e-4ddd-bfa2-80bb9d0dec75">5.2</a> - System Planning Report - Ping Yan (<a href="/grid.1.7/texas/follow2/puct/?control=55718&date=0">55718</a>) (<a href="/controls/lege/?control=88R-HB5066">HB5066</a>) <ul> <li style="font-weight: 400;" aria-level="1">Permian Basin reliability plan study <a href="https://www.ercot.com/files/docs/2024/06/28/Permian%20Basin%20Reliability%20Plan%20Study%20-%20Workshop%20-%20June%2028%202024.pdf">report</a> posted on ERCOT website.</li> <li style="font-weight: 400;" aria-level="1">Updated 2024 long term load <a href="https://www.ercot.com/gridinfo/load/forecast">forecast</a> posted on ERCOT website.</li> <li style="font-weight: 400;" aria-level="1">Prabhu Gnanam and Jeff Billo are available for questions on these topics.</li> <li style="font-weight: 400;" aria-level="1">PUC staff issued <a href="https://interchange.puc.texas.gov/Documents/55718_18_1415305.PDF">questions</a> on the Permian Basin study; comments due August 9, workshop on August 22.</li> <li style="font-weight: 400;" aria-level="1">Ken Donohoo inquired about public access to posted cases; Prabhu mentioned TSPs have access, broader access under discussion.</li> </ul> <a href="/sharing/?token=b2f2f0fb-a9e2-453a-8d3c-392cc27f0463">5.3</a> - Generic Transmission Constraint - GTC - Update - Sun Wook Kang <ul> <li style="font-weight: 400;" aria-level="1"><a href="https://ercot-control-docs.s3.us-west-2.amazonaws.com/25/05-gtc_update_stx-export-and-import-aug1-ros-3.pdf">GTC Update</a></li> <li style="font-weight: 400;" aria-level="1">Four GTCs to manage thermal-related cascading issues on the Calaveras-Pawnee 345 kV lines.</li> <li style="font-weight: 400;" aria-level="1">These GTCs have been effective since March 2024.</li> <li style="font-weight: 400;" aria-level="1">ERCOT conducted a study indicating that full transmission upgrade would help manage the GTCs.</li> <li style="font-weight: 400;" aria-level="1">Four transmission projects are identified to help exit the South Texas GTCs:</li> <ul> <li style="font-weight: 400;" aria-level="2">San Antonio Reliability 1 Project</li> <li style="font-weight: 400;" aria-level="2">LRGV Ground Value Transmission Improvement Projects</li> <li style="font-weight: 400;" aria-level="2">San Antonio Reliability 2 Projects</li> <li style="font-weight: 400;" aria-level="2">Expected service dates: 2027 and 2029.</li> </ul> <li style="font-weight: 400;" aria-level="1">A remaining line and existing Tango-Goddard-Katenn-Lon Hill upgrades were also needed; this project was identified in the 2023 RTP.</li> <li style="font-weight: 400;" aria-level="1">San Antonio Reliability 1 and 2 Projects and the LRGV projects will create new 345 kV paths to improve infrastructure.</li> <li style="font-weight: 400;" aria-level="1">The fourth project involves rebuilding the existing 345 kV line from Tango to Lon Hill</li> <li style="font-weight: 400;" aria-level="1">All projects aim to improve import and export GTC capabilities.</li> <li style="font-weight: 400;" aria-level="1">No further updates expected; access certificates posted on the MIS website.</li> <li style="font-weight: 400;" aria-level="1">Remaining projects under development by TSP's, and RPG submission expected from TSP.</li> </ul> <a href="/sharing/?token=e6ed13fa-fd64-40b1-a61b-7551373b4c51">6</a> - ROS Revision Requests - Vote - Katie Rich 6.1 Impact Analysis <a href="/sharing/?token=95cebb08-f2d6-4cd7-9204-ebd0a0cd3e23">6.2</a> - NOGRR262, Provisions for Operator-Controlled Manual Load Shed <ul> <li style="font-weight: 400;" aria-level="1">No project required.</li> <li style="font-weight: 400;" aria-level="1">NOGRR262 added to the combo ballot</li> </ul> <a href="/sharing/?token=00703760-ddcf-4599-b8ea-ca116ce29745">6.4</a> - NOGRR266, Related to NPRR1239, Access to Market Information <ul> <li style="font-weight: 400;" aria-level="1">NOGRR266 was decided to table for later discussion or consideration.</li> <li style="font-weight: 400;" aria-level="1">NOGRR266 added to the combo ballot.</li> </ul> <a href="/sharing/?token=926aa1ce-231a-426d-a921-ce4e641e2377">6.5</a> - NOGRR267, Related to NPRR1240, Access to Transmission Planning Information <ul> <li style="font-weight: 400;" aria-level="1">NOGRR267 added to the combo ballot.</li> </ul> <a href="/sharing/?token=9689f824-839b-4e0f-a7c3-bcfa9744cbfc">6.6</a> - PGRR116, Related to NPRR1240, Access to Transmission Planning Information <ul> <li style="font-weight: 400;" aria-level="1">PGRR116 added to the combo ballot.</li> </ul> <a href="/sharing/?token=c109a505-5fd3-481f-8b97-2a384cb60c3f">6.7</a> - PGRR117, Addition of Resiliency Assessment and Criteria to Reflect PUCT Rule Changes <ul> <li style="font-weight: 400;" aria-level="1">The PUCT rule requires ERCOT to conduct a biannual assessment for power grid reliability and resiliency in extreme weather.</li> <li style="font-weight: 400;" aria-level="1">ERCOT can recommend transmission projects to address resiliency issues identified in the assessment.</li> <li style="font-weight: 400;" aria-level="1">Introduction of the acronym GRRA: Grid Reliability and Resiliency Assessment.</li> <li style="font-weight: 400;" aria-level="1">Section 3.1.1.6 added to identify what pertains to the GRRA.</li> <li style="font-weight: 400;" aria-level="1">Assessment to be conducted biennially in even-numbered years, focusing on thermal and renewable generation availability.</li> <li style="font-weight: 400;" aria-level="1">Identification of areas in the ERCOT region with significant reliability and resiliency issues due to extreme weather.</li> <li style="font-weight: 400;" aria-level="1">Recommendation of transmission upgrades based on the assessment to improve reliability and resiliency.</li> <li style="font-weight: 400;" aria-level="1">Definition of extreme weather scenarios including patterns of generation, extreme peak loads, and multiple outages.</li> <li style="font-weight: 400;" aria-level="1">Evaluation of contingencies P0, P1, P2, and P7 of the NERC reliability standard TPL-001.</li> <li style="font-weight: 400;" aria-level="1">Modifications to section 4.1 section 1 for introduction and addition of resiliency criteria.</li> <li style="font-weight: 400;" aria-level="1">Resiliency criteria include transmission upgrades to prevent instability, uncontrolled islanding, and reduce load shedding impacts.</li> <li style="font-weight: 400;" aria-level="1">Motion to table PGRR117 and refer the issue to PLWG added to the combo ballot.</li> </ul> <a href="/sharing/?token=7b51ba7d-6b9c-4d56-b234-46fea2b20f14">7</a> - NPRR1239, Access to Market Information - Possible Vote - Katie Rich <ul> <li style="font-weight: 400;" aria-level="1">NPRR1239 added to the combo ballot.</li> </ul> <a href="/sharing/?token=76aa1e3f-8cf3-43ae-bb6e-ea378a38d6af">8</a> - NPRR1240, Access to Transmission Planning Information - Possible Vote - Katie Rich <ul> <li style="font-weight: 400;" aria-level="1">NPRR1240 added to the combo ballot.</li> </ul> <a href="/sharing/?token=05406b83-1174-48fb-84a2-08feedca0447">9</a> - New Protocol Revision Subcommittee - PRS - Referrals - Vote - Katie Rich <a href="/sharing/?token=05ddd777-aac0-4b59-8ed4-6e32c09909fe">9.1</a> - NPRR1238, Voluntary Registration of Loads with Curtailable Load Capabilities - Possible Vote <ul> <li style="font-weight: 400;" aria-level="1">NPRR1238 added to the combo ballot.</li> </ul> <a href="/sharing/?token=e91309d3-7c9d-4dde-b0ee-50529688f728">10</a> - Revision Requests Tabled at PRS and Referred to ROS - Possible Vote - Katie Rich <a href="/sharing/?token=0b48ba72-4142-4800-a002-f67dbf5e929f">10.1</a> - NPRR1229, Real-Time Constraint Management Plan Energy Payment <ul> <li style="font-weight: 400;" aria-level="1">NPRR1229 remains tabled.</li> </ul> <a href="/sharing/?token=ca00dbea-6851-4af3-8399-81e0cf636818">10.2</a> - NPRR1234, Interconnection Requirements for Large Loads and Modeling Standards for Loads 25 MW or Greater - NDSWG <ul> <li style="font-weight: 400;" aria-level="1">Request for confirmation from NDSWG leadership to include NPRR1234 in their next meeting agenda.</li> <li style="font-weight: 400;" aria-level="1">A note will be sent to NDSWG leadership for confirmation to ensure it is not overlooked.</li> </ul> <a href="/sharing/?token=7a149c2b-297b-441c-b8a8-e59226658963">11</a> - Revision Requests Tabled at ROS - Possible Vote - Katie Rich <a href="/sharing/?token=a8153922-6d40-4f5d-ba7b-510a6a0ce561">11.1</a> - PGRR073, Related to NPRR956, Designation of Providers of Transmission Additions <ul> <li style="font-weight: 400;" aria-level="1">PGRR073 remains tabled.</li> </ul> <a href="/sharing/?token=9e98ec29-81b3-42bf-92c8-2a51f8f8ca9d">12</a> - Operations Working Group - OWG - Tyler Springer <ul> <li style="font-weight: 400;" aria-level="1"><a href="https://ercot-control-docs.s3.us-west-2.amazonaws.com/29/12-owg_ros_20240801.pptx">OWG Update</a></li> <li style="font-weight: 400;" aria-level="1">Public comment for BAL-001-TRE started on 7-15 and lasts for 30 days.</li> <li style="font-weight: 400;" aria-level="1">NERC standard review form session scheduled for July 25, 9-11 AM; materials available on NERC website.</li> <li style="font-weight: 400;" aria-level="1">Cyber and physical security workshop on July 28 at Texas RE; agenda on TRE website.</li> <li style="font-weight: 400;" aria-level="1">Industry workshop for missed operation reduction announced for October 1-2 in Salt Lake City at WECC offices; sign up on NERC website.</li> </ul> <a href="/sharing/?token=28b17e17-c075-482a-bfcc-19604bf260c7">12.1</a> - NPRR1070, Planning Criteria for GTC Exit Solutions - OWG, PLWG - Possible Vote <ul> <li style="font-weight: 400;" aria-level="1">NPRR1070 remains tabled at OWG pending a timeline from ERCOT.</li> </ul> <a href="/sharing/?token=d0f8590c-187f-4055-9d2e-a89e9183004b">12.2</a> - NOGRR265, Related to NPRR1238, Voluntary Registration of Loads with Curtailable Load Capabilities - Possible Vote <ul> <li style="font-weight: 400;" aria-level="1">Bill Blevins from ERCOT discussed telemetry registration for transmission versus distribution loads.</li> <li style="font-weight: 400;" aria-level="1">VDI with NPRR1217 should transition to XML.</li> <li style="font-weight: 400;" aria-level="1">Concerns raised about distribution load qualifying and potential issues with UFLS for large customers.</li> <li style="font-weight: 400;" aria-level="1">ERCOT suggests set point should be 3000 to avoid hitting the EEA1 limit at 2500.</li> <li style="font-weight: 400;" aria-level="1">VECL to be deducted from TOs native load for summer and winter percentages.</li> <li style="font-weight: 400;" aria-level="1">Discussion on VECL entering an agreement with just the QSE.</li> <li style="font-weight: 400;" aria-level="1">Group believes the TO should also be part of the agreement if it impacts the customer's equipment.</li> <li style="font-weight: 400;" aria-level="1">Bill proposed adding TSP sign-off on the existing ERCOT form for simplicity.</li> <li style="font-weight: 400;" aria-level="1">Initial suggestion for table updates four times per year, adjusted to two times per year for winter and summer updates.</li> <li style="font-weight: 400;" aria-level="1">Reminder about hit list submission deadline and review at August OWG meeting.</li> <li style="font-weight: 400;" aria-level="1">OTWG update on severe weather drill; market notification already sent; no CEHs provided.</li> <li style="font-weight: 400;" aria-level="1">Single point of contact for Blackstart training to be sent by August 15; training weeks: October 14 - November 21; market notice in September; no pilot session planned; prerequisite portion through ERCOT LMS.</li> <li style="font-weight: 400;" aria-level="1">ERCOT operations training seminar for 2025 to include additional topics related to QSEs; seeking speakers from market participants; no EEA or emergency training simulations; seminars scheduled for April to March next year.</li> <li style="font-weight: 400;" aria-level="1">NOGRR265 and NPRR1238 to be discussed together at this month's meeting; potential comments from Oncor and ERCOT anticipated.</li> </ul> <a href="/sharing/?token=f6b98846-1f86-4a02-b23f-9a893cc8431f">13</a> - Planning Working Group - PLWG - Dylan Preas <a href="/sharing/?token=36622700-3988-4319-ae48-5bcbad68bd86">13.1</a> - PGRR107, Related to NPRR1180, Inclusion of Forecasted Load in Planning Analyses - PLWG - Possible Vote <ul> <li style="font-weight: 400;" aria-level="1">PLWG <a href="https://ercot-control-docs.s3.us-west-2.amazonaws.com/25/13-planning-working-group-update_08012024.pptx">Update</a></li> <li style="font-weight: 400;" aria-level="1">PLWG discussed PGRR107 and NPRR1180 regarding the inclusion of forecasted load in planning analysis in the July 16th meeting..</li> <li style="font-weight: 400;" aria-level="1">Extensive discussion on substantiated load definition.</li> <li style="font-weight: 400;" aria-level="1">Questions and discussions about double load counting, transparency, and reporting requirements and the impact on the CDR report..</li> <li style="font-weight: 400;" aria-level="1">PLWG tabled this item for another month to further develop it.</li> <li style="font-weight: 400;" aria-level="1">Expectation to finalize at the next PLWG meeting and return it to ROS in September.</li> </ul> <a href="/sharing/?token=de62d091-4357-479c-8862-685569aba58c">13.2</a> - PGRR115, Related to NPRR1234, Interconnection Requirements for Large Loads and Modeling Standards for Loads 25 MW or Greater - Possible Vote <ul> <li style="font-weight: 400;" aria-level="1">Lengthy discussion included submission of future large load information to ERCOT.</li> <li style="font-weight: 400;" aria-level="1">Importance of including large loads in the QSA and keeping large load commissioning plans up to date.</li> <li style="font-weight: 400;" aria-level="1">ERCOT Steel Mills submitted comments on July 3, which were discussed at PLWG.</li> <li style="font-weight: 400;" aria-level="1">Concerns were raised about remote control disconnect requirements for existing large loads.</li> <li style="font-weight: 400;" aria-level="1">PLWG tabled this discussion for future meetings.</li> <li style="font-weight: 400;" aria-level="1">NERC Topics Roundtable agenda item was bumped due to lengthy PLWG meeting.</li> <li style="font-weight: 400;" aria-level="1">Mina Turner from AEP is on the drafting team for NERC CIP-014-4 revisions, planned for future discussion at PLWG meeting.</li> <li style="font-weight: 400;" aria-level="1">Review of NERC TPL-008-1, a new transmission planning performance standard for extreme weather.</li> <li style="font-weight: 400;" aria-level="1">Tracking open action items including congestion costs and implementation of NPRR1070.</li> <li style="font-weight: 400;" aria-level="1">Next PLWG meeting scheduled for August 13, following the RPG meeting.</li> <li style="font-weight: 400;" aria-level="1">Confirmation that PGRR117 will be on the August 13 agenda.</li> </ul> <a href="/sharing/?token=5fa066a2-174c-4b0b-bb37-1cd8e6ebeea0">14</a> - Performance, Disturbance, Compliance Working Group - PDCWG - Chad Mulholland <ul> <li style="font-weight: 400;" aria-level="1">Chad Mulholland presented an <a href="https://ercot-control-docs.s3.us-west-2.amazonaws.com/29/14-pdcwg-report-to-ros_080124.pptx">update</a> on behalf of Kevin Bunch and the PDC.</li> <li style="font-weight: 400;" aria-level="1">A first look at the 2025 ancillary service methodology was discussed.</li> <li style="font-weight: 400;" aria-level="1">Changes to the methodology affect only Reg-Up and Reg-Down allocations.</li> <li style="font-weight: 400;" aria-level="1">Other ancillary services are only changing in their allocation amounts, not in methodology.</li> <li style="font-weight: 400;" aria-level="1">Small decreases in Reg-Up and Reg-Down allocations are expected for 2025.</li> <li style="font-weight: 400;" aria-level="1">Responsive Reserve allocations are projected to remain flat.</li> <li style="font-weight: 400;" aria-level="1">Small increases in ECRS and Non-Spin allocations are anticipated.</li> <li style="font-weight: 400;" aria-level="1">Details and additional analysis will be shared with other stakeholder forums soon.</li> </ul> <a href="/sharing/?token=14fc738f-faed-4b82-916a-bfa342cf6224">14.1</a> - NOGRR263, Clarification of Controllable Load Resource Primary Frequency Response Responsibilities - PDCWG - Possible Vote) <ul> <li style="font-weight: 400;" aria-level="1">NOGRR263 was referred to the PDC at the last month's ROS.</li> <li style="font-weight: 400;" aria-level="1">PDC's discussion was generally supportive of NOGRR263.</li> <li style="font-weight: 400;" aria-level="1">Concern about potential negative impact on ERCOT PFR due to NOGRR263.</li> <li style="font-weight: 400;" aria-level="1">There is no quantifiable impact or definitive reliability risk identified.</li> <li style="font-weight: 400;" aria-level="1">The item was referred back to ROS for further discussion based on supportive feedback.</li> <li style="font-weight: 400;" aria-level="1">Motion to recommend approval of NOGRR263 as amended by the 7/22/24 Priority Power comments added to the combo ballot.</li> </ul> <a href="/sharing/?token=52367855-ee93-4a6d-a156-eccbc90767e8">14.2 </a>- NOGRR264, Related to NPRR1235, Dispatchable Reliability Reserve Service as a Stand-Alone Ancillary Service - Possible Vote <ul> <li style="font-weight: 400;" aria-level="1">Gennerally supportive of NOGRR264</li> <li style="font-weight: 400;" aria-level="1">Motion to recommend approval of NOGRR264 as submitted added to mini combo ballot</li> </ul> <a href="/sharing/?token=cd3086aa-1662-4ba9-b4f1-7ede441d16bb">14.3</a> - NPRR1235, Dispatchable Reliability Reserve Service as a Stand-Alone Ancillary Service - Possible Vote <ul> <li style="font-weight: 400;" aria-level="1">NPRR1235 related to DRRs: supportive conversation, no major issues or concerns raised.</li> <li style="font-weight: 400;" aria-level="1">Discussion on including ESRs in DRRs: general interest from ERCOT to continue the conversation, suggestion for a separate workshop.</li> <li style="font-weight: 400;" aria-level="1">Frequency control metrics and reg reports: nothing unusual noted, presentations available in backup slides.</li> <li style="font-weight: 400;" aria-level="1">Texas TRE report: SAR for BAL-001-TRE open for comment, volunteer request for drafting team anticipated around September or October.</li> <li style="font-weight: 400;" aria-level="1">Motion to endorse NPRR1235 as submitted added to mini combo ballot..</li> </ul> ICCP Tags for IRR Curtailment Discussion: <ul> <li style="font-weight: 400;" aria-level="1">ERCOT working on new tags specifying collective solar and wind curtailment data, expected by end of month.</li> </ul> Disturbances: <ul> <li style="font-weight: 400;" aria-level="1">One FME in June on the 29th, routine event with overall good frequency response.</li> <li style="font-weight: 400;" aria-level="1">Issues noticed with telemetry errors in wind and energy storage units causing poor scores.</li> </ul> Stakeholder Comments on NPRR1235 and NOGRR264: <ul> <li style="font-weight: 400;" aria-level="1">Nitika Mago: Continued effort to refine DRRs, engage stakeholders, NPRR for DRRs and ESRs targeted before end of year.</li> <li style="font-weight: 400;" aria-level="1">Cyrus Reed (Sierra Club): Filed comments supporting inclusion of storage resources in DRRs, legislative intent to enable this.</li> <li style="font-weight: 400;" aria-level="1">Doug Pietrucha (Texas Advanced Energy Business Alliance): Support for storage participation in DRRs, open to workshops for discussion.</li> <li style="font-weight: 400;" aria-level="1">Michael Jewell (Joint Commenters): Support for discussing storage participation, concerns about specific language but willingness to work with ERCOT.</li> </ul> Voting Decisions: <ul> <li style="font-weight: 400;" aria-level="1">NOGRR264 and NPRR1235: Motion to recommend approva as submitted and endorse as submitted, respectively.</li> <li style="font-weight: 400;" aria-level="1">The motion carries with seven abstentions. </li> </ul> <img src="/storage/docs/2024/08/264263ballot.png" width="612" height="586" /> <a href="/sharing/?token=d9fceaa8-3d0e-4e2c-af68-27817802c53d">15</a> - Dynamics Working Group - DWG - Paul Koberlein <a href="/sharing/?token=055f53ec-a795-49fd-801f-c95d03b1d54e">15.1</a> - DWG Procedure Manual - Possible Vote <ul> <li style="font-weight: 400;" aria-level="1"><a href="https://ercot-control-docs.s3.us-west-2.amazonaws.com/25/15-dwg-procedure-manual-update-for-nogrr245.pptx">Procedure Manual Update</a></li> <li style="font-weight: 400;" aria-level="1">Seeking ROS approval for an update to the DWG procedure manual to align with changes proposed with NOGRR245.</li> <li style="font-weight: 400;" aria-level="1">Proposal to make the new procedure manual effective upon the approval of NOGRR245.</li> <li style="font-weight: 400;" aria-level="1">Feedback received from Southern Power and Vistra, beyond the scope of desktop edits.</li> <li style="font-weight: 400;" aria-level="1">Next steps involve discussing comments in DWG and adapting language as needed.</li> <li style="font-weight: 400;" aria-level="1">Plan to seek approval at the next ROS meeting on September 9.</li> <li style="font-weight: 400;" aria-level="1">Southern Power requests a delay for technical vetting of updates, particularly by OEMs, to align models with new changes.</li> <li style="font-weight: 400;" aria-level="1">Concerns about impact on ongoing modeling requests; suggestion for a transition period.</li> <li style="font-weight: 400;" aria-level="1">Discussion on the comments will continue at the next IBR/TWG joint workshop on August 9.</li> <li style="font-weight: 400;" aria-level="1">ERCOT’s Sun Wook clarified  that the current manual remains effective until NPRR245 is approved.</li> </ul> <a href="/sharing/?token=495898d0-e621-40d2-ace4-db0b10d444a0">16</a> - Combo Ballot - Vote - Katie Rich <img src="/storage/docs/2024/08/Aug1ROSComboItems.png" width="649" height="189" /> <ul> <li style="font-weight: 400;" aria-level="1">Motion carried with all in favor</li> </ul> <img src="/storage/docs/2024/08/Aug1ROSCOMBO.png" width="651" height="639" /> 17 - Black Start Working Group - BSWG - Mike Dieringer <ul> <li style="font-weight: 400;" aria-level="1">Not Discussed</li> </ul> <a href="/sharing/?token=5e4f47f3-75d3-42e7-94ea-6d2b4d1444ad">18 </a>- Inverter Based Resources Working Group - IBRWG - Julia Matevosyan <ul> <li style="font-weight: 400;" aria-level="1"><a href="https://ercot-control-docs.s3.us-west-2.amazonaws.com/29/18-ibrwg-report-to-ros-080124.docx">Presentation</a> on advanced grid support from inverter based energy storage resources functional specifications and test framework by Andrew Isaacs.</li> <li style="font-weight: 400;" aria-level="1">Four commercially available battery models tested with the proposed framework.</li> <li style="font-weight: 400;" aria-level="1">Focus on basic functions for energy storage resources to enhance grid support.</li> <li style="font-weight: 400;" aria-level="1">Highlight of damping capability requirements unique to ERCOT due to many serious capacitors on long transmission lines.</li> <li style="font-weight: 400;" aria-level="1">Potential conflicts identified between IEEE 2800 standard and advanced support requirements; further examination needed.</li> <li style="font-weight: 400;" aria-level="1">Proposed four test benches for simulation-based testing; eleven simulation tests proposed.</li> <li style="font-weight: 400;" aria-level="1">Discussion on adopting advanced grid support requirements for new energy storage resources and voluntary implementation for existing ones.</li> <li style="font-weight: 400;" aria-level="1">Background provided on the necessity of advanced grid support and global grid forming requirements; benefits shown in ERCOT preliminary studies.</li> <li style="font-weight: 400;" aria-level="1">Improvement of 5-10% in GDC limits observed in some cases.</li> <li style="font-weight: 400;" aria-level="1">Transmission service owners encouraged to consider advanced grid support devices for future transmission reinforcements.</li> <li style="font-weight: 400;" aria-level="1">Finalization of functional specifications and tests planned, with submission of a revision request by the end of the year.</li> <li style="font-weight: 400;" aria-level="1">Continued assessment of grid forming capabilities from other inverter based resources like wind and solar, and black start capability from grid forming resources.</li> <li style="font-weight: 400;" aria-level="1">Stakeholders to contact Fred Huang at ERCOT for comments on functional specifications and testing framework.</li> <li style="font-weight: 400;" aria-level="1">Discussion on DWG procedure manual and future agenda for IBRWG meeting on August 9.</li> <li style="font-weight: 400;" aria-level="1">SPWG discussing auto recording close to IBRs to improve ride-through capability with setting changes; further discussion at August IBRWG meeting.</li> <li style="font-weight: 400;" aria-level="1">Texas RE mentioned a market notice switching to single resource CSR model from the beginning of August; potential update to be provided to IBRWG.</li> </ul> 19 - Network Data Support Working Group - NDSWG -  Gerardo Escamilla - 12:55 p.m. <ul> <li style="font-weight: 400;" aria-level="1">Not discussed</li> </ul> <a href="/sharing/?token=d930f0fc-0dae-4702-b828-c9f85c3c8be8">20</a> - System Protection Working Group - SPWG - Mark McChesney <ul> <li style="font-weight: 400;" aria-level="1">Reviewed proposals from ERCOT on distribution transform modeling.</li> <li style="font-weight: 400;" aria-level="1">Discussed system change requests to integrate short circuit data into ERCOT's modeling systems.</li> <li style="font-weight: 400;" aria-level="1">Received an <a href="https://ercot-control-docs.s3.us-west-2.amazonaws.com/25/20-spwg-ros-update-8-01-2024.pptx">update</a> on NERC activities related to PRC standards.</li> <li style="font-weight: 400;" aria-level="1">Invited Aspen to update on short circuit modeling of IBR generators.</li> <li style="font-weight: 400;" aria-level="1">Held an open discussion on reclosing philosophies related to IBRs and IEEE C 37.104 guidance.</li> <li style="font-weight: 400;" aria-level="1">Plan to continue the conversation at the next IBRWG.</li> </ul> <a href="/sharing/?token=35f5ba52-ecc0-407c-b148-4e5cd7a7fdc3">21</a> - Steady State Working Group - SSWG - Zach Walker <ul> <li style="font-weight: 400;" aria-level="1">Zach Walker, vice chair of SSWG, filled in for William Robertson.</li> <li style="font-weight: 400;" aria-level="1">Gave a quick verbal update, no new items to present.</li> <li style="font-weight: 400;" aria-level="1">Currently working on the second case build of 2024, targeted for late October publication.</li> <li style="font-weight: 400;" aria-level="1">A couple of active items involving proposed revisions to the SSWG procedure manual are ongoing.</li> <li style="font-weight: 400;" aria-level="1">Aiming for consensus among the working group on these revisions.</li> <li style="font-weight: 400;" aria-level="1">Next business meeting scheduled for August 28 in person at ERCOT.</li> <li style="font-weight: 400;" aria-level="1">Julia Matevosyan noted a deadline of August 12 for comments on three dark standard drafts.</li> </ul> 22 - Other Business - Katie Rich <a href="/sharing/?token=ce98af38-021c-42d8-845c-200356c0db36">22.1</a> - 2025 Meeting Schedule <ul> <li style="font-weight: 400;" aria-level="1">PRS moved their meetings to Wednesdays and finalized their schedule for next year.</li> <li style="font-weight: 400;" aria-level="1">No proposed changes to the current schedule.</li> <li style="font-weight: 400;" aria-level="1">Most meetings will remain on Thursdays..</li> <li style="font-weight: 400;" aria-level="1">Will continue using WebEx for meetings with conflicts with open meetings.</li> <li style="font-weight: 400;" aria-level="1">Agreement to post the schedule on the website if everyone agrees.</li> </ul> <a href="/sharing/?token=5b61386a-2e35-418a-ad88-e237ccf3d68d">22.2</a> - Review Open Action Items List <ul> <li style="font-weight: 400;" aria-level="1">SSWG updated the procedural manual after PGRR113 related to NPRR1198.</li> <li style="font-weight: 400;" aria-level="1">PLWG recommended, and ROS advanced the update forward.</li> <li style="font-weight: 400;" aria-level="1">SSWG manual is updated on the ERCOT website.</li> <li style="font-weight: 400;" aria-level="1">New practice initiated: follow-up emails for referrals to ensure they are discussed in the next meeting.</li> <li style="font-weight: 400;" aria-level="1">Next meeting scheduled for September 9, a Monday, to avoid Labor Day holiday; it will be WebEx only.</li> </ul> 23 - Adjourn <ul> <li style="font-weight: 400;" aria-level="1">The meeting was adjourned.</li> </ul>