Meeting · TAC

TAC Meeting

Concluded date 2026-05-19 time 09:30 committee TAC ercot.com

LocationERCOT Austin 8000 Metropolis (Building E), Suite 100 Austin, TX 78744 Boardroom B

VirtualWebEx / Teams

Dial-in877-668-4493

Revision Requests On The Agenda

COPMGRR052NPRR1302NPRR1306NPRR1325PGRR145RMGRR184VCMRR045

Agenda 30 items

1. Antitrust Admonition — Caitlin Smith · 9:30 a.m.
2. Approval of TAC Meeting Minutes Vote — Caitlin Smith · 9:35 a.m.
April 29, 2026
3. Meeting Updates — Caitlin Smith · 9:40 a.m.
PUCT Open Meeting Updates
4.
Review of Revision Request Summary/ERCOT Market Impact Statement/Opinions — Ann Boren/IMM · 9:50 a.m.
- 4. RR Summary
5. Regional Planning Group (RPG) Projects Vote — Prabhu Gnanam · 9:55 a.m.
Combined 25RPG017 CPS Energy Helotes 345/138-kV Switching Station & Autotransformer Addition at Eastside Switching Station Project & 25RPG013 CPS Energy Reactive Power Planning Project
- 5. RPG Projects
25RPG009 Oncor and LCRA TSC Muscovy and Voss Lake 345/138-kV Project
- 2026 TAC 25RPG009 Ballot 20260519 · Revision Request Ballot
- 5. RPG Projects
Combined 25RPG040 Oncor Set 1 North & Central Texas Reliability Project & 25RPG042 Oncor Set 2 North & Central Texas Reliability Project
- 5. RPG Projects
Combined 25RPG041 Oncor Set 1 North Central & South Central Texas Reliability Project & 25RPG043 Oncor Set 2 North Central & South Central Texas Reliability Project
- 5. RPG Projects
26RPG001 LCRA TSC and CEHE Euclid 765-kV Substation and Transmission Line Addition Project
- 5. RPG Projects
6. Revision Requests Tabled at TAC Vote — Caitlin Smith · 11:55 a.m.
NPRR1302, Addition of a Market Participant Service Portal within the MIS Certified Area and Revision of Forms
- 6. RRs Tabled at TAC
NPRR1306, Removal of Digital Certificate References for Market Participants with ERCOT MIS Access
- 6. RRs Tabled at TAC
7. RMS Report Vote — John Schatz · 12:15 p.m.
RMGRR184, Related to NPRR1306, Removal of Digital Certificate References for Market Participants with ERCOT MIS Access
- 7. RMS Report
8. WMS Report Vote — Blake Holt · 12:35 p.m.
COPMGRR052, Related to NPRR1306, Removal of Digital Certificate References for Market Participants with ERCOT MIS Access
- 8. WMS Report
VCMRR045, Related to NPRR1306, Removal of Digital Certificate References for Market Participants with ERCOT MIS Access
- 8. WMS Report
9.
Combo Ballot Vote — Caitlin Smith · 12:55 p.m.
- 2026 TAC Combined Ballot 20260519 · Revision Request Ballot
10. ERCOT Reports · 1:00 p.m.
ADER Pilot Governing Document Vote — Katherine Gross
- 10. ERCOT Reports
FFSS Settlement Report — Magie Shanks
- 10. ERCOT Reports
Potential Price Correction for Real-Time Market — Matt Young
- 10. ERCOT Reports
2027 Ancillary Services Methodology Timeline Discussion — Luis Hinojosa
- 10. ERCOT Reports
PUC Ancillary Services Cost Allocation Study — Nitika Mago
- 10. ERCOT Reports
11.
Batch Study Items (Waive Notice – Possible Vote) PGRR145, Batch Zero Process for Large Load Interconnections – URGENT NPRR1325, Related to PGRR145, Batch Zero Process for Large Load Interconnections – URGENT · 2:00 p.m.
- 2026 TAC PGRR145 Ballot 20260519 · Revision Request Ballot
- 2026 TAC PGRR145 Ballot - Eolic Comments with Desktop Edits 20260519 - Failed · Revision Request Ballot
- 11. Batch Study Items
12. Other Business
Adjourn

Ballots

Body	RRs	Result	Yes	No	Abstain
TAC		Motion Passes	29	0	1	xls
TAC	COPMGRR052 NPRR1302 NPRR1306 NPRR1325 PGRR145 RMGRR184 VCMRR045	Motion Passes	30	0	0	xls
TAC	PGRR145	Motion Passes	29	0	1	xls
TAC	PGRR145	Motion Fails	10	19	1	xls

Documents 1

Name	Doc Type	Type	Posted
agenda_tac_05192026_FINAL_Rev2	Meeting Agenda	docx	May 13 '26

Name

Doc Type

Type

Posted

agenda_tac_05192026_FINAL_Rev2

Meeting Agenda

docx

May 13 '26