Meeting Summary - 06/24/24 TAC Meeting

Grid Monitor Staff Writer
06/25/2024

<p><span style="font-weight: 400;">1 - Antitrust Admonition</span></p> <p><span style="font-weight: 400;">2 - Approval of TAC Meeting Minutes - Vote - Caitlin Smith</span></p> <p><span style="font-weight: 400;">2.1 - May 22, 2024</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">May 22 meeting minutes placed on the combo ballot.</span></li> </ul> <p><span style="font-weight: 400;">3 - Meeting Updates - Caitlin Smith</span></p> <p><span style="font-weight: 400;"><a href="/sharing/?token=6bab454f-1c46-4adf-a6bc-ff4dd2b4fe97" target="_blank" rel="noopener">3.1</a> - June 13th PUCT Open Meeting</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">PUC approved NPRR1197</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">PUC approved NPRR1205</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">PUC approved RMGRR177</span></li> </ul> <p><span style="font-weight: 400;"><a href="/sharing/?token=45b12fd3-1a37-4443-82f5-01b117e04060" target="_blank" rel="noopener">3.2</a> - June 17th &ndash; 18th Board Meetings</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">The board approved all revision requests except NOGRR245, which was tabled.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">NOGRR245 will be addressed in a special board meeting scheduled for July as a bifurcated or decoupled version with the narrow issue removed.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">A new NOGRR addressing the narrow issue will go through the regular stakeholder process.</span></li> </ul> <p><span style="font-weight: 400;"><a href="/sharing/?token=c1af046c-d2a2-44b7-a4f9-6d4cb40eb452" target="_blank" rel="noopener">4</a> - Review of Revision Request Summary/ERCOT Market Impact Statement/Opinions - Ann Boren/ IMM</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">ERCOT supports all revision requests presented at the TAC meeting.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">IMM has no opinion on revision requests except for 1230.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">CFSG reviewed all NPRRs and found no credit impacts.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Three revision requests are for general system and process improvements.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Three revision requests are regulatory.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">One revision request aligns with strategic plan objective one.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">One revision request aligns with strategic plan objective two.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">One revision request is an ERCOT board PUC directive.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">NPRR1216 has a financial impact of $175,000 to $250,000.</span></li> </ul> <p><span style="font-weight: 400;">5 - PRS Report - Vote - Diana Coleman</span></p> <p><span style="font-weight: 400;"><a href="/sharing/?token=8f27cd5e-56e6-407f-a049-a46fee8e6c07" target="_blank" rel="noopener">5.1</a> - NPRR1190, High Dispatch Limit Override Provision for Increased Load Serving Entity Costs</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">NPRR1190 was approved with opposition: 1 opposing vote, 2 abstentions from the consumer segment.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">No cost or project associated.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Reliant's comments in March expanded NPRR1190 provisions to other LMPs</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">PRS agreed with recommended approval with Reliant's comments in May.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Concerns voiced regarding compensation for scheduled but undelivered power under HDL limits.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">ERCOT clarified benefits, ensuring recovery of demonstrable financial costs due to HDL overrides.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Historical issues cited: similar to problems that led to ERCOT's market design shift from zonal to nodal.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Concerns about undermining market principles: should be paid for delivered power only.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Blake Holt motioned to approve NPRR1190; Bill Barnes seconded.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Motion to table NPRR1190 for further IMM review; motion failed 30% for, 70% against.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Motion to recommend approval of NPRR1190 as recommended by TAC in the 6/13 PRS report carried 79% in favor, 6 opposed, 1 abstention.</span></li> </ul> <p><span style="font-weight: 400;"><a href="/sharing/?token=e185f341-92d2-4ae2-8821-f5cff48e045c" target="_blank" rel="noopener">5.2</a> - NPRR1215, Clarifications to the Day-Ahead Market - DAM - Energy-Only Offer Calculation</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">No cost or project associated with this revision.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Unanimously voted on with January 23, 2024 IA</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">NPRR1215 Added to combo ballot</span></li> </ul> <p><span style="font-weight: 400;"><a href="/sharing/?token=438ccc5d-8754-4384-b54d-05214a4fa38e" target="_blank" rel="noopener">5.3</a> - NPRR1216, Implementation of Emergency Pricing Program</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">NPRR1216 unanimously endorsed in June</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">ERCOT filed comments in response to PRS discussions about terminating the emergency pricing program.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Changes discussed at PRS earlier this month; no other changes made.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">NPRR1216 recommended by PRS, with additional ERCOT comments reflecting PRS discussions.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Clarified that ECAP (Emergency Cap Adjustment Period) transitions at the start of the next operating hour for consistency.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Added equivalent language in NPRR document and corrected a grammatical error.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">NPPR1216 added to combo ballot</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Related documents OBDRR051 and VCMRR039 added to combo ballot</span></li> </ul> <p><span style="font-weight: 400;"><a href="/sharing/?token=c7a5b387-0ef6-4342-ae04-f3c03853b0dc" target="_blank" rel="noopener">5.4</a> - NPRR1225, Exclusion of Lubbock Load from Securitization Charges</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">No cost associated with this project.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">PRS unanimously endorsed with April 11, 2024 IA</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">NPRR1225 added to combo ballot</span></li> </ul> <p><span style="font-weight: 400;">6 - Revision Requests Tabled at TAC - Possible Vote - Caitlin Smith</span></p> <p><span style="font-weight: 400;"><a href="/sharing/?token=fc3ecb2f-78b4-4abe-b3ba-96c6192618a0" target="_blank" rel="noopener">6.1</a> - NPRR1230, Methodology for Setting Transmission Shadow Price Caps for an IROL in SCED &ndash; URGENT</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">5/29 ERCOT comments reviewed at the special TAC meeting on May 31.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Request for analysis from stakeholders acknowledged; ERCOT is working on it, expected to be completed by the next TAC meeting.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Reduced urgency for NPRR1230 compared to prior expectations.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Initial urgency was to prepare for the summer with the expectation of IROL emergence.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Current assessment indicates less immediate need but sooner implementation is still preferred by ERCOT.</span></li> </ul> <p><span style="font-weight: 400;"><a href="/sharing/?token=c995aefc-1349-47f0-bae9-457e3482c776" target="_blank" rel="noopener">6.2</a> - OBDRR046, Related to NPRR1188, Implement Nodal Dispatch and Energy Settlement for Controllable Load Resources</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">OBDRR046 can remain tabled.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">NPRR1188 is still at PRS</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Request for update on NPRR1188 received.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Dave from ERCOT provided a status update.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">ERCOT believes NPRR1188 is ready to move forward.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Ongoing discussions to clarify some language in NPRR1188.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">ERCOT aims to make progress on NPRR1188 at the next PRS meeting.</span></li> </ul> <p><span style="font-weight: 400;"><a href="/sharing/?token=01be2f32-f5a3-4e0c-b839-efb89819db4a" target="_blank" rel="noopener">6.3</a> - OBDRR051, Related to NPRR1216, Implementation of Emergency Pricing Program</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">OBDRR051 is on the combo ballot.</span></li> </ul> <p><span style="font-weight: 400;"><a href="/sharing/?token=c3f57e69-df7f-475c-b978-055a363d02b3" target="_blank" rel="noopener">7</a> - RMS Report - John Schatz</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">RMGRR181 and NPRR1227 updates: Administrative cleanup to align definitions and remove verbiage inconsistencies.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Mandatory Texas Set 5.0 and MarkeTrak overviews on June 25 at 9:30 at ERCOT and via WebEx.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Opportunity for ERCOT and market participants to discuss registering for mandatory flight testing and review upcoming changes.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Meeting materials and orientation session posted to the ERCOT calendar.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Registration deadlines for flight testing: New entities by July 3, 2024; existing LSEs by July 31, 2024.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Failure to complete flight testing results in loss of certification to serve customers in ERCOT.</span></li> </ul> <p><span style="font-weight: 400;">Questions and Answers:</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Question: Will there be a roll call for the mandatory meeting?</span><span style="font-weight: 400;"><br /></span><span style="font-weight: 400;">Answer: Yes, there will be a roll call.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Question: Request to update on sign-ups and what&rsquo;s outstanding from the LSE standpoint at the next TAC meeting.</span><span style="font-weight: 400;"><br /></span><span style="font-weight: 400;">Answer: Will work with Dave Michelsen's team to provide updates.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Question: Who is the mandatory meeting for?</span><span style="font-weight: 400;"><br /></span><span style="font-weight: 400;">Answer: Mandatory for every LSE and every REP.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Question: Do you have REPs that haven't signed up that send transactions regularly?</span><span style="font-weight: 400;"><br /></span><span style="font-weight: 400;">Answer: Yes, many REPs have not registered as the deadline is July 31. Encouraged to register as soon as possible to avoid missing the deadline.</span></li> </ul> <p><span style="font-weight: 400;">Action Items:</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Work with Dave Michelsen and team to provide updates on registration statuses at the next TAC meeting.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Encourage REPs to register for flight testing early to avoid missing the deadline.</span></li> </ul> <p><span style="font-weight: 400;">8 - ROS Report - Katie Rich</span></p> <p><span style="font-weight: 400;"><a href="/sharing/?token=1c48bf51-a63d-42b1-a572-9458c8b7030b" target="_blank" rel="noopener">8.1</a> - PGRR106, Clarify Projects Included in Transmission Project Information and Tracking - TPIT - Report</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">PGRR106 is up for a vote with TAC today.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">No action needed by ROS after review at TWG.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Endorsement by ROS as submitted; will proceed back to PRS.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Progress noted, with fewer items remaining and some new referrals from PRS.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Next meeting scheduled for July 11 via WebEx.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Approval of PGRR106 recommended as in ROS report.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">PGRR106 added to combo ballot</span></li> </ul> <p><span style="font-weight: 400;"><a href="/sharing/?token=2f1751ff-8848-4cc9-b583-002936ba03f7" target="_blank" rel="noopener">9</a> - WMS Report - Jim Lee</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">ERCOT issued a heads up notice on NPRR1231.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">NPRR1231 endorsed by the June PRS.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Report presented on the 2023 annual UFE.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Four voting items were approved by WMS, VCMRR039, VCMRR040, VCMRR041, and NPRR1216.</span></li> </ul> <p><span style="font-weight: 400;"><a href="/sharing/?token=b65242ce-eddc-4640-992f-1df5dcbe92e1" target="_blank" rel="noopener">9.1</a> - VCMRR039, Related to NPRR1216, Implementation of Emergency Pricing Program</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">VCMRR039 made the combo ballot today.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">VCMRR040, VCMRR041, and NPRR1216 tabled and referred to the demand side working group.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Discussion about recent EPA rules and potential actions related to greenhouse gas rule and Mercury air toxics standards.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Solicitation for feedback from TAC on whether WMS should take additional action concerning new EPA rules.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Ned highlights the importance of keeping EPA regulations on WMS's radar, implying analysis could involve several working groups.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">There is a struggle to define concrete actions or tasks, emphasizing the need for feedback to determine specific steps and complete action items.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Summary of revision requests under WMS review, with NPRR1190, NPRR1216, and VCMRR039 endorsed.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Next WMS meeting is scheduled for July 10.</span></li> </ul> <p><span style="font-weight: 400;"><a href="/sharing/?token=d0d5f3dd-2b88-499d-a7ca-b80304340494">10</a> Large Flexible Load Task Force Report, Bill Blevins<br /></span></p> <ul> <li><strong>Updates on ERCOT Activity:</strong> <ul> <li>NPRR1234 and PGRR115 have been submitted to replace NPRR1191 and PGRR111 based on stakeholder feedback.</li> <li>These new documents propose a revised interconnection process for loads 75 MW or greater and new modeling requirements for loads 25 MW or greater. This aims to improve situational awareness and load forecasting in network operations.</li> <li>Some previous concepts such as voltage ride-through standards, register curtailable load, and specific ramping requirements were omitted from the new revisions.</li> </ul> </li> <li><strong>Discussion and Process:</strong> <ul> <li>These proposals have been brought to discussions in June at both the task force meeting and the PRS meeting.</li> <li>They are now tabled and referred to ROS (Reliability and Operations Subcommittee) for further discussion.</li> <li>The aim is to continue advancing these discussions and address them again in the July task force meeting.</li> </ul> </li> <li><strong>Future Plans:</strong> <ul> <li>The primary discussion about these documents will take place at ROS.</li> <li>Plans are in place to move these proposals forward quickly, building on the feedback received over the past nine months since the filing of NPRR1191.</li> <li>After discussions at ROS, the proposals will return to PRS and be further discussed in the coming months.</li> </ul> </li> </ul> <p><span style="font-weight: 400;"><a href="/sharing/?token=973b99d4-410b-4e8e-8c62-ec1ea3163e8a" target="_blank" rel="noopener">11</a> - RTC+B Task Force Report Matt Mereness</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Short update, no voting items.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Brief update from June board meeting schedule.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Discussed trial sequence preview and ongoing issues.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Completed business requirements.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">In the process of planning and developing code.</span></li> </ul> <p>&nbsp;</p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Received day ahead market code from vendor in mid-May.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Developing RUC and SCADA codes.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">External interface specifications to be published by end of week.</span></li> </ul> <p>&nbsp;</p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">September 2024 target for ERCOT go live schedule release.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">May 2025 vendor final release for integration and market trials setup.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Detailed market trials and sequence to mitigate risks discussed.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Non-binding open loop SCED test for price formation evaluation.</span></li> </ul> <p>&nbsp;</p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Plans for telemetry and EMS system tests.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Closed loop LFC test for frequency control validation.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Clarifying NPRR aligned with business requirements and key principles.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Discussion on vendor participation and readiness.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">July 17 task force meeting for further review of market trial plans and attestations.</span></li> </ul> <p><span style="font-weight: 400;">12 - ERCOT Reports</span></p> <p><span style="font-weight: 400;"><a href="/sharing/?token=5b13dc3f-2e97-4abb-b819-853b237dcc75" target="_blank" rel="noopener">12.1</a> - 2025 Ancillary Service Methodology Discussion Kick Off Nitika Mago / Luis Hinojosa</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Speaker: Nitika Mago / Luis Hinojosa</span></li> <ul> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Working groups (WMSWG and PDC) to start discussions in July on 2025 Ancillary Service methodology.</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Goal to present proposed methodology to ERCOT's October board and allow PUC to review before year's end.</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Urged interested parties to participate in July and August meetings.</span></li> </ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Speaker: Bob Whitmire</span></li> <ul> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Inquired about adjusting methodology due to large flexible loads.</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Nitika agreed to discuss and plan for sharing LFLTF updates.</span></li> </ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Speaker: Bob Helton</span></li> <ul> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Emphasized importance of continuous engagement with PUC staff to avoid last-minute issues.</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Nitika confirmed ongoing collaboration with PUC.</span></li> </ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Speaker: Bill Barnes</span></li> <ul> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Asked about incorporating stakeholder feedback in the methodology.</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Nitika mentioned potential amendments if feedback received in November/December.</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Clarified that DRRS implementation likely post-2026 as per current plans.</span></li> </ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Speaker: Eric Goff</span></li> <ul> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Requested multiple approaches for comparison to assist in informed decision-making.</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Nitika agreed on preparing similar analyses for consistency in future discussions.</span></li> </ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Speaker: Ned Bonskowski</span></li> <ul> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Questioned need for a backstop or contingency plan for unexpected changes.</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Nitika to discuss with PUC and update in the July meeting.</span></li> </ul> </ul> <p><span style="font-weight: 400;">13 - Other Business</span></p> <p><span style="font-weight: 400;"><a href="/sharing/?token=b07f904d-d2f4-42e7-9236-5c7aba1932c0" target="_blank" rel="noopener">13.1</a> - PUC Ancillary Services Study Update Jeff Billo / IMM</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Probabilistic modeling is being used to determine optimal ancillary services procurement quantities in ERCOT.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">The study focuses on long-term response products, without emphasis on PFR and regulation, but includes ECRS and Non-Spin, and explores DRRS as a product.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Historical data from June last year to this June is used, with 10,000 iterations for every hour in the study to model probabilities of outages.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Coordination with ERCOT and PUC is ongoing to ensure data reliability and comfort with methodologies.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">There's a need for balance between future load forecasts and the current limited time frame of the study.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Dynamic ancillary services plans are being considered, though complexities of implementation are acknowledged.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Key concerns include correlating weather variables, cumulative factors of generator trips, and accounting for headroom capacity in reserves.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Additional stakeholder feedback and involvement are crucial, particularly regarding aligning methodologies with real-time operational risks.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">A workshop is scheduled for August to further discuss the methodology and seek stakeholder input.</span></li> </ul> <p><span style="font-weight: 400;">Questions &amp; Answers:</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Question: How closely are you working with ERCOT and the PUC?</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Answer: Coordination occurs regularly and methodologies are discussed monthly, feedback is incorporated.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Question: Will future load forecasts be incorporated into the study?</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Answer: Currently not focused on future load forecasts due to the limited study timeframe.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Question: How is the Monte Carlo simulation framed?</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Answer: Using historical hours with 10,000 random iterations to model outage probabilities based on varied inputs.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Question: How do you handle the forecast error and battery storage in the study?</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Answer: Adjustments are being made for improved forecasts and different time horizons for products.</span></li> </ul> <p><span style="font-weight: 400;">Additional Points:</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Stakeholder engagement and feedback are emphasized as critical to refining the study and its methodologies.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Operational risk and cost considerations need to be balanced for effective ancillary service planning.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Dynamic ancillary service plans could potentially increase efficiency but require detailed analysis and time.</span></li> </ul> <p><span style="font-weight: 400;"><a href="/sharing/?token=9d28b030-ea34-41f4-b9b4-d8ee45e811d1" target="_blank" rel="noopener">14</a> - Combo Ballot - Vote - Caitlin Smith</span></p> <p><img src="/storage/docs/2024/06/JUNE24TACBallot.png" width="884" height="110" /></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Motion initiated by Ned and seconded by Blake</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Vote conducted by Corey</span></li> <li><span style="font-weight: 400;">Motion carried unanimously</span></li> </ul> <p>&nbsp;</p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Consumers unanimously approved the motion:</span></li> <ul> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Eric Goff: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Nabara Pokharelj: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Mark Dreyfus: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Nick Ferenbach: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Garrett Kent: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Eric Schubert: Yes</span></li> </ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">CoOps unanimously approved the motion:</span></li> <ul> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Mike Wise: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Blake Holt: Yes and Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">John Packard: Not present</span></li> </ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Independent Generators unanimously approved the motion:</span></li> <ul> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Bryan Sams: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Caitlin Smith: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Bob Helton: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Ned Bonskowski: Yes</span></li> </ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">IPM unanimously approved the motion:</span></li> <ul> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Resmi Surendran: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Jeremy Carpenter: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Ian Haley: Yes</span></li> </ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">IREPs unanimously approved the motion:</span></li> <ul> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Bill Barnes: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Jennifer Schmitt: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Christopher J.: Yes (twice)</span></li> </ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">IOUs unanimously approved the motion:</span></li> <ul> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Keith Nix: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">David Mercado: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Colin Martin: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Richard Ross: Yes</span></li> </ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Munis unanimously approved the motion:</span></li> <ul> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Russell Franklin: Not present</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Jose Gaytan: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">David Kee: Yes</span></li> <li style="font-weight: 400;" aria-level="2"><span style="font-weight: 400;">Alicia Loving: Yes</span></li> </ul> </ul> <p><span style="font-weight: 400;"><a href="/sharing/?token=a9d96db4-f5dd-45f4-a218-35a6daa98074" target="_blank" rel="noopener">15</a> - Adjourn</span></p> <ul> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Next TAC meeting scheduled for July 31, to be held in person.</span></li> <li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Potential special board meeting might be scheduled before July 3, but not confirmed yet.</span></li> </ul>