Endorsement for AS methodology changes related to NPRR1257.
Approval of three transmission projects.
Discussion on estimated aggregate liability methodology; upcoming revision request to reduce over-collateralization without increasing under-collateralization.
Discussion on the goal process for future agenda items.
ERCOT's proposed market design framework was presented and stakeholder feedback was discussed.
▶️5 - 2025 WMS Working Group Leadership - Vote - Blake Holt
Motion to approve annual update to CRR Activity Calendar as submitted added to the combo ballot.
ERCOT is required to post an updated CRR activity calendar by April 1 each year, detailing auction activity dates for the current year or next two years.
The draft calendar was previewed at CMWG with no revisions requested, now seeking final approval from WMS.
The model build process begins three weeks before the model posting date, with a third week added in 2023 due to changes in model build tools.
The calendar follows a pattern with a monthly auction and a long-term auction each month, adjusted for holidays if necessary.
Results for monthly auctions are posted one week after the bid window closes, and long-term auction results two weeks after.
The calendar includes two tabs for calendar protocol references and PCRR activity dates related to the annual allocation process.
Current calendar extends through March 2027, with patterns applied consistently for future dates through March 2028.
Encouragement for PCRR eligible NOIEs to review the PCRRs tab.
Final WMS approval being sought before the protocol posting deadline of April 1.
Katie Rich mentioned past issues brought up by Austin Energy, suggesting CMWG could explore removing the annual requirement.
▶️8.1 - VCMRR042, SO2 and NOx Emission Index Prices Used in Verifiable Cost Calculations
Motion to endorse and forward to TAC the 12/4/24 WMS Report, as amended by the 2/4/25 ERCOT comments as revised by WMS, and the 1/31/25 Impact Analysis for VCMRR042, with a recommended priority of 2026 and rank of 4720 added to the combo ballot.
ERCOT provided an impact analysis for VCMRR042, which was initially approved in December and tabled in January.
Comments filed by ERCOT and Lumina were reviewed, focusing on changes to automate emission cost calculations in the future.
Emissions costs will be calculated manually until a system change is implemented.
Annual index prices for SOx will continue throughout the year, and NOx calculations will occur from May to September.
Revisions were confirmed to not affect prior discussions at RCWG and are aligned with federal guidelines suggesting NOx is seasonal.
The move towards pulling in daily prices is expected to increase calculation accuracy, in line with federal guidelines.
Automation of VCMRR042 is not expected before RTC+B, 2026.
Discussion on enterprise integration nodal services and the role of the vendor Hargas Media in price automation.
Potential costs for integration range between $90,000 to $140,000 due to uncertainties.
General support for the revisions from the team, anticipating a motion to approve revisions and submit to TAC.
Vote on ERCOT comments and impact analysis to proceed.
Revisions to VCMRR042 are supported and a motion for approval and submission to TAC is anticipated.
▶️9.1 - NPRR1263, Remove Accuracy Testing Requirements for CCVTs
Motion to request PRS continue to table NPRR1263 for further review by MWG added to the combo ballot.
Tony Davis from WETT proposed NPRR1263 to remove the five-year accuracy testing requirement for CCVTs due to operational burdens and risks in shipment.
CCVTs need to be removed from service and sent back for testing, resulting in some being destroyed during transit.
Comparative practices with other ISOs were mentioned to highlight less stringent requirements elsewhere, such as CAISO and PGM.
Historical data from 2002 to 2010 indicated no significant drift in CCVTs accuracy.
Brian Sams from Calpine advocated to involve manufacturers in discussions.
The proposal will move to the Meter Working Group for further review and discussion.
▶️9.2 - NPRR1264, Creation of a New Energy Attribute Certificate Program
Motion to request PRS continue to table NPRR1264 for further review by WMWG passes unanimously with no abstentions.
NPRR1264 is being discussed at WMWG.
This NPRR involves payments to resources tripped offline due to reliability actions by ERCOT.
Discussion involved whether this applies to constraint management plans, which was deemed unlikely by ERCOT.
The clarification in language was suggested for the NPRR.
Further discussion is planned for the next month.
Lucas confirmed satisfaction with Amanda's summary and noted ongoing review of similar items related to NPRR1190.
▶️10 - Revision Requests Tabled at PRS and Referred to WMS - Possible Vote - Blake Holt
▶️10.1 - NPRR1070, Planning Criteria for GTC Exit Solutions
An update on NPRR1070 was provided last month.
Comments from EDF are expected soon.
▶️10.2 - NPRR1202, Refundable Deposits for Large Load Interconnection Studies
NPRR1202 and NPRR1238 were discussed previously, and no further action is needed from WMS.
There was a consideration about communicating to PRS that WMS has completed its review of these items.
ERCOT is evaluating the methodology proposed in NPRR1234 in relation to NPRR1202.
▶️10.3 - NPRR1238, Voluntary Registration of Loads with Curtailable Load Capabilities
Motion to advise PRS that WMS has concluded discussion of NPRR1238 and has no recommendation at this time
OWG is expecting comments from ERCOT on NPRR1238.
There was a query about NPRR1202, which involves increased fees for large load interconnections and refundable deposits.
ERCOT is considering merging NPRR1202 with NPRR1234. It's under internal review.
WMS is not anticipating action on NPRR1202 at this moment.
If changes occur, they will be discussed under WMS with possible opinions.
Some discussants suggest communicating back to PRS that there is no further action required from WMS regarding NPRR1238.
If comments arise from OWG on NPRR1238, further discussion might take place at WMS.
The consensus appears to be reporting back to PRS that the review is complete.
There is agreement to consolidate NPRR1238 back to PRS for further actions.
▶️11 - Revision Requests Tabled at WMS - Possible Vote - Blake Holt
Revision request tabled related to NPRR1264 discussed.
No further action required as actions were taken last month.
11.1 - 11.3 Not Discussed
▶️12 - Congestion Management Working Group - CMWG - CMWG Leadership
▶️13.1 - SMOGRR028, Add Series Reactor Compensation Factors - MWG - Possible Vote
Motion to recommend approval of SMOGRR028 as amended by the 1/14/25 MWG comments
Edits were made on December 19 with input from stakeholders including TDSPs, ERCOT, and others.
Key changes involve responsibilities of series reactor owners to provide necessary values for TDSPs and a shift in compensation methodology from transformer to line loss calculation.
Support and consensus were reported from the meter working group (MWG) for moving SMOGRR028 forward.
SMOGRR028 is to be included as a combo ballot item with the January 14 comments.
Consensus reached to retain Kevin Hansen as Chair, Greg Lackey and the speaker as Co-Chairs for 2025.
Discussion on Demand Response Resource Schedule (DRRS) included three presentations focusing on different perspectives.
Reviewed upcoming capacity demand and reserves report, including new report tabs and reflecting loads identified under House Bill 5066.
Discussed improvements to Servum simulation projects, with focus on January weather events and event durations.
Plan to change to a multi-zonal representation in SERVM models to assess impacts on generation deliverability.
Prototype process for reliability standard assessment involves updating the SERVM model and integrating probabilistic analysis into transmission planning.
Shane Thomas from Shell provided feedback suggesting improvements in weather event modeling accuracy and stakeholder data review.
Clarification from Gordon Drake regarding multi-workshop approach focusing on DRRS real-time issues.
Continuous updates planned for various phases of reliability standard assessment preparation.
Awaiting updates on market design aspects and DRRS representation in models.
No backcasting done yet on generation investment predictions and outcomes.
14.1 - Not Discussed
▶️15 - Wholesale Market Working Group - WMWG - WMWG Leadership
Motion to approve the combo ballot as presented passed unanimously with no abstentions.
Completion of discussion on NPRR1202 and NPRR1238 communicated to PRS to serve as an official paper trail.
Consideration of creating a separate ballot for NPRR1202 due to its original authorship and lack of official stance on the matter.
Bill mentioned continued stakeholder support for increasing fees associated with NPRR1202, with potential changes expected by December.
The motion for advisement to PRS carried unanimously across various segments including consumer, cooperative, independent generator, power marketers, retail electric providers, investor-owned utilities, and municipal.
Clarification sought on VCMRR052 motion, expected priority by 2026 and rank 4720, with manual implementation until automation is feasible.
The motion carries unanimously. The combo ballot was approved with unanimous support across all segments.
▶️17 - Demand Side Working Group - DSWG - DSWG Leadership
