The major issues discussed were NOGRR245, where a $750 floor was agreed upon.
Comments from IMM file are expected this week, and triggers in NPRR1224 are scheduled to go to the board in a couple of weeks.
NPRR1230, which involves a manual process for managing interconnection reliability operating limits for the summer, was tabled until the next TAC meeting on June 24.
5 - ERCOT Operations and Market Item
5.1 - NPRR1231, FFSS Program Communication Improvements and Additional Clarifications - Magie Shanks
The proposed changes include the addition of a new distribution list
For communication regarding switching from primary to alternate resource and restocking fuel, contact FFSS@ERCOT.com
Extension of the reporting time for deployments from 30 to 45 days after the FFSS season
Language adjustments related to disqualification process and clarification of available resources during settlements
Katie Rich from Luminant plans to file comments on the restocking issue
Questions from stakeholders included inquiries about the current process of notifying a switch from primary to alternate and confirmation that both operators and settlements are tracking the new email communication
TAC has scheduled a special webex meeting for further discussion
UFE (unaccounted for energy) is defined as the variance between generation and load losses, with sources including generation measurement errors, transmission, distribution, and load errors, and theft.
The 2023 Annual UFE Report included total UFE in megawatt hours and cost, percentage to ERCOT load, and factors contributing to UFE.
2023 showed negative 1,078,199 total UFE, cost of $92 million, with a significant negative UFE during winter and mid-summer.
The report discussed the impact of non-metered accounts contributing to UFE, and the reasons for large negative UFE in January and February.
It was mentioned that state estimator data for transmission losses would help improve UFE calculations and would begin in Q3 of 2024.
The presentation also covered historical yearly values, transmission loss factor calculations, forecasted transmission losses for 2024 and 2025, and NPR1145 for the use of state estimates for TLFs in settlement calculations.
6 - Resource Cost Working Group - RCWG - Blake Holt
Kiran Sidhu has switched employment from E360 power to RWE Renewables and is still interested in helping out in leadership.
ERCOT gave an overview of the sulfur dioxide and nitrogen oxide emission price, stating that the prices for these products have not changed since 2020 ($2 a short ton for SO2, $3 a short ton for NOx).
ERCOT's suggestion is to remove the current subscription service and move forward with hard coded values for the emission prices, holding onto them until new EPA requirements come out, the market becomes more liquid, or TAC directs them to.
The Resource Cost Working Group (RCWG) expressed interest in reviewing and coming up with other suggestions, planning to meet again on June 25 to continue the discussion.
7 - WMS Revision Requests - Eric Blakey
7.2 - VCMRR039, Related to NPRR1216, Implementation of Emergency Pricing Program
The language was approved last month.
Approval sought for the IA, which was no-cost.
No concerns or comments raised, item added to combo ballot.
7.4 - VCMRR040, Methodology for Calculating Fuel Adders for Coal-Fired Resources
The methodology removes the necessity for ERCOT to purchase an annual coal price index
Allows generators to submit their costs for coal and transportation to ERCOT for developing appropriate cost categories
Item added to combo ballot
7.5 - VCMRR041, SO2 and NOX Emission Prices Used in Verifiable Cost Calculations - RCWG
VCMRR041 is tabled to RCWG
8 - Congestion Management Working Group - CMWG - Alex Miller
Implementation plan for SCR819 to be released by the end of May
Testing process for generators' response and honoring the flag during SCED intervals outlined
Mitigation for ESRs discussed, just in time framework preferred methodology
Draft NPRR for ESR mitigation to be discussed in July
Other tabled items: CRR auction solution time, RDPA adder fix for locational price signals, and smaller load zones analysis
9 - Supply Analysis Working Group - SAWG - Greg Lackey
Kevin Kaden (Astrape) presented a new BES ELCC methodology study
Draft CONE study results presented by Sam Newell (Brattle)
Greg Lackey presented a proposed methodology for investigating ELCCs for non-dispatchable technologies and proposed a plan or schedule for the study.
Matt Arthur from ERCOT provided an update on the status of the Excel workbook and final CONE study report filing.
ERCOT's recommended changes to the ELCC studies were presented
VOLL survey results and response rates from different customer classes were discussed.
Next SAWG meeting on June 26.
10 - WMS Revision Requests Tabled at WMS - Possible Vote - Eric Blakey
10.1 - SMOGRR028, Add Series Reactor Compensation Factors - MWG
SMOGRR028 tabled at MWG
11 - New Protocol Revision Subcommittee - PRS - Referrals - Vote - Eric Blakey
