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January 10, 2017 Technical Advisory Committee (TAC) Update to RMS

This update provides information on the Technical Advisory Committee's discussions and decisions regarding PRS initiatives, Nodal Protocol Revision Requests (NPRRs), and voting outcomes. It covers topics such as the confirmation of 2016 PRS Chair/Vice Chair, approval of NPRRs related to Special Protection System (SPS) and Counter-Party's Available Credit Limit, and the alignment with NPRR792. The update also includes reports from the Reliability Operations Subcommittee (ROS), Wholesale Market Subcommittee (WMS), and Commercial Operations Subcommittee (COPS). Additionally, it addresses the Retail Market Subcommittee (RMS) update, ERCOT Operations, Planning, and IT report, and the DAM Make-Whole Calculation Issue.

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January 10, 2017 Technical Advisory Committee (TAC) Update to RMS

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  1. January 10, 2017Technical Advisory Committee (TAC) Update to RMS Kathy Scott TAC Update to RMS

  2. 3. PRS Initiatives and Votes • Nodal Protocol Revision Requests (NPRRs) • Confirmation of 2016 PRS Chair/Vice Chair (Vote) • Amanda Frazier(Luminant Generation) -- Confirmedas Chair • Martha Henson (Oncor) -- Confirmed as Vice Chair • NPRR792, Changing Special Protection System (SPS) to Remedial Action Scheme (RAS) – Unanimously Approved • NPRR803, Remove Grey-boxed Language from NPRR439, Updating a Counter-Party’s Available Credit Limit for Current Day DAM- Unanimously Approved • Other Binding Document (OBD) List • Removal from OBD List (Vote) • “PCRR Allocation Eligibility Form” - Unanimously Approved TAC Update to RMS

  3. 4. Revision Request Previously Tabled by TAC • NPRR773, Broadening Scope of Acceptable Letter of Credit Issuers – Unanimously Approved • PGRR051, Alignment with NPRR792, Changing Special Protection System (SPS) to Remedial Action Scheme (RAS) – Unanimously Approved • NOGRR164, Alignment with NPRR792, Removing Special Protection System (SPS) and adding Remedial Action Scheme (RAS) – URGENT – “Table” awaiting NPRR792 Approval at the December 13th Board meeting, TAC Leadership stated an email vote would be provided to TAC members following NPRR792/PGRR051 ERCOT Board Approval. • Appeal of NOGRR149, Revision to Definition of Transmission Operator - Motion to Table until the January 26, 2017 TAC meeting was Unanimous. • http://ercot.com/content/wcm/key_documents_lists/76857/04._Tabled_Revision_Requests.zip TAC Update to RMS

  4. 5. ROS Initiatives and Votes: • Reliability Operations Subcommittee (ROS) • NOGRR162, Process for Resolving Real-Time Data Discrepancies (Vote) - Motion to Approve with ERCOT comments was Unanimous • PGRR042, Regional Transmission Plan Model Reserve Requirement and Load-Generation Imbalance Methodology (Vote) – Ballot Voting Required • “Motion to Table”– Failed • (24% Yes) (76 % No) (0 Abstention) • “Motion to Approve”-Passed • (86% Yes)(14% No) (1 Abstention) • http://ercot.com/content/wcm/key_documents_lists/76857/05._ROS_Report.zip TAC Update to RMS

  5. 6. WMS Initiatives and Votes: • Wholesale Market Subcommittee (WMS): • SMOGRR018, EPS Metering for Three-Wire Wye Configurations (Vote) – Unanimously Approved • SMOGRR019, Clarifications and Updates to Paralleling Current Transformers, Instrument Transfer Name Plate Photos and Loss Potential Event Logging Requirements (Vote) - Unanimously Approved • 2016 CRR Activity Calendar (Vote) - Unanimously Approved • Market Continuity Updates to TAC • http://ercot.com/content/wcm/key_documents_lists/76857/06._WMS_Report.zip TAC Update to RMS

  6. 7. COPS Initiatives and Votes: • Commercial Operations Subcommittee (COPS): • Confirmation of 2016 COPS Vice Chair (Vote) • John Schatz (TXU Energy Retail Company) reconfirmed as Vice Chair changed from IOU to Independent REP segment. Vote was Unanimous. • COPMGRR044, Alignment with NPRR794, Relocation of Unregistered DG Reporting Requirements (Vote) – • Unanimously Approved for Tabling waiting for NPRR794 that was currently at PRS. TAC Update to RMS

  7. 8. RMS Initiatives and Updates • Retail Market Subcommittee (RMS) Update: • http://ercot.com/content/wcm/key_documents_lists/76857/08._RMS_Update_to_TAC_12_01_16__v1_.ppt • Market Continuity Updates to TAC • http://ercot.com/content/wcm/key_documents_lists/76857/08._Market_Continuity_TXSET_Discussion_Matrix_20161130_Final_Draft.docx TAC Update to RMS

  8. 9. ERCOT Operations, Planning, and IT Report • Market Continuity Update to TAC • Mark Ruane stated ERCOT will take all the information gathered from WMS and RMS. Based upon that information, ERCOT may develop some operating principles and possible protocol language that would be discussed during the March 2017 TAC meeting. • DAM Make-Whole Calculation Issue • Mark Ruane provided the following updates: • http://ercot.com/content/wcm/key_documents_lists/76857/09._TAC_2016_12_01_DAM_Make-Whole_Calculation_Issue_v1.pptx • Action Item – TAC referred this issue to WMS and COPS for additional discussions and possible recommendationsconcerning the 2% threshold for Resettlement of the DAM as stated in ERCOT Protocol's Section 9.2.5(2) TAC Update to RMS

  9. Questions? TAC update to RMS

  10. Retail Market Subcommittee TAC update to RMS

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