APPROVED

Minutes of the Technical Advisory Committee (TAC) Meeting

ERCOT Austin – 7620 Metro Center Drive – Austin, Texas 78744

Thursday, February 26, 2015 – 9:30 a.m.

Attendance

Members:

Allen, Thresa / Iberdrola Renewables
Andrews, Sean / Source Power and Gas
Blakey, Eric / Just Energy
Boren, Marie / OPUC
Boyd, Phillip / City of Lewisville
Brandt, Adrianne / Austin Energy
Crockett, Brenda / Champion Energy Services
Cunningham, Lance / Denton Municipal Electric / Via Teleconference
Detelich, David / CPS Energy
Emesih, Valentine / CenterPoint Energy
Frazier, Amanda / Luminant
Goff, Eric / Citigroup Energy
Jones, Randy / Calpine
Lange, Clif / STEC
Minnix, Kyle / Brazos Electric Power Cooperative
Morris, Sandy / Direct Energy
Pieniazek, Adrian / NRG Texas
Pridgeon, Marcus / CMC Steel Texas
Ross, Richard / AEPSC
Soutter, Mark / Invenergy Energy Management
Stephenson, Randa / LCRA
Whitehurst, Stacy / TNMP
Wittmeyer, Bob / Denton Municipal Electric / Alt. Rep. for L. Cunningham

The following proxies were assigned:

·  Tayaun Messer to Kyle Minnix

·  Chris Brewster to Phillip Boyd

·  Bill Smith to Marcus Pridgeon

Guests:

Abbott, Kristin / PUCT / Via Teleconference
Bern, Alan / Oncor
Brown, Jeff / Shell / Via Teleconference
Bryant, Mark / PUCT / Via Teleconference
Bunch, Kevin / EDF Trading / Via Teleconference
Coleman, Diana / PUCT / Via Teleconference
Donohoo, Ken / Oncor
Downey, Marty / TriEagle
Echols, Ed / Sharyland
English, Barksdale / Austin Energy
Firestone, Joel / Topaz Power
Fletcher, Blake / Endure Energy / Via Teleconference
Flowers, BJ / Sharyland
Galiunas, Al / EY / Via Teleconference
Garza, Beth / Potomac Economics / Via Teleconference
Graham, Greg / Texas Reliability Entity / Via Teleconference
Gregory, Angela / EDF Trading / Via Teleconference
Gross, Blake / AEPSC
Harvey, Julia / PUCT / Via Teleconference
Helton, Bob / GDF Suez
Jackson, Natalie / GSEC / Via Teleconference
Jones, Liz / Oncor
Juricek, Michael / Oncor / Via Teleconference
Kremling, Barry / GVEC
McKeever, Debbie / Oncor / Via Teleconference
Mueller, Paula / Texas Reliability Entity / Via Teleconference
Nease, Nelson / NHN PC
O’Grady, Eileen / Argus Media / Via Teleconference
Owens, Frank / Cross Texas Transmission / Via Teleconference
Reed, Carolyn / CenterPoint Energy / Via Teleconference
Reedy, Steve / Potomac Economics
Rehfeldt, Diana / TNMP / Via Teleconference
Reid, Walter / Wind Coalition
Rohan, Adam / Enchanted Rock / Via Teleconference
Roth, Werner / PUCT / Via Teleconference
Sandidge, Clint / Noble Solutions
Scott, Kathy / CenterPoint Energy
Shaw, Pamela / CES / Via Teleconference
Siddiqi, Shams / Crescent Power
Trenary, Michelle / Tenaska Power Services
Trout, Seth / CES
Varnell, John / Tenaska / Via Teleconference
Velasquez, Ivan / Oncor / Via Teleconference
White, Lauri / AEP Texas
Whittle, Brandon / Stratus Energy
Whitworth, Doug / Texas Reliability Entity / Via Teleconference
Woodruff, Taylor / Oncor / Via Teleconference
Zake, Diana / Lone Star Transmission
Zimmerman, Mark / Air Products / Via Teleconference
Zotter, Laura / Austin Energy / Via Teleconference

ERCOT Staff:

Albracht, Brittney
Bauld, Mandy
Boren, Ann
Butterfield, Lindsay / Via Teleconference
Gilbertson, Jeff / Via Teleconference
Gonzalez, Ino / Via Teleconference
Hanson, Kevin / Via Teleconference
Manning, Brian / Via Teleconference
Moorty, Sai / Via Teleconference
Opheim, Calvin / Via Teleconference
Pabbisetty, Suresh / Via Teleconference
Phillips, Cory
Raish, Carl / Via Teleconference
Ruane, Mark / Via Teleconference
Solis, Stephen / Via Teleconference
Surendran, Resmi / Via Teleconference
Thompson, David / Via Teleconference
Thurman, Kathryn / Via Teleconference
Wattles, Paul

Unless otherwise indicated, all Market Segments were present for a vote.

2015 TAC Chair Randa Stephenson called the February 26, 2015 TAC meeting to order at 9:30 a.m.

Antitrust Admonition

Ms. Stephenson directed attention to the displayed Antitrust Admonition, and noted that the Antitrust Guidelines are available for review on ercot.com.

Approval of TAC Meeting Minutes (see Key Documents)[1]

January 29, 2015

Brittney Albracht noted a correction to the draft January 29, 2015 TAC meeting minutes.

Thresa Allen moved to approve the draft January 29, 2015 TAC meeting minutes as amended by TAC. Adrian Pieniazek seconded the motion. The motion carried unanimously.

ERCOT Board of Directors (ERCOT Board) Update

Nodal Protocol Revision Request (NPRR) 638, Revisions to Certain Price Components of EAL

Ms. Stephenson noted discussion of NPRR638 at the Finance and Audit Committee and requested that the Wholesale Market Subcommittee (WMS) report on the work of the Market Credit Working Group (MCWG) at the March 26, 2015 TAC meeting. Ms. Stephenson offered that NPRR638 may not advance in time for the April 14, 2015 ERCOT Board meeting, but that she would like Market Participants to be comfortable with her update.

Proposed TAC Procedures Amendment (see Key Documents)

Market Participants discussed proposed revisions to Paragraph C of Section II, Membership, of the TAC Procedures to allow a designee to attend TAC in the event the Chief Operating Officer (COO) is unavailable.

Richard Ross moved to approve the revised TAC Procedures as presented. Randy Jones seconded the motion. The motion carried unanimously.

2015 TAC and Subcommittee Goals & Strategic Objectives (see Key Documents)

2015 TAC Goals

Ms. Stephenson presented draft 2015 TAC Goals for TAC consideration. Market Participants offered revisions and clarifications.

Mr. Ross moved to approve the 2015 TAC Goals as revised by TAC. Mr. R. Jones seconded the motion. The motion carried unanimously.

2015 TAC Strategic Initiatives

Market Participants discussed the difficulty of prioritizing the strategic initiatives, given the varied objectives of individual Entities; that it would be more productive to assign initiatives to specific forums for further exploration; and that while it is likely multiple groups will engage any given topic, assignment to a single group would reduce confusion and streamline reporting. Market Participants agreed to the following assignments:

·  Subsynchronous Oscillation (SSO) – Reliability and Operations Subcommittee (ROS)

·  Loads in SCED Part 2 – WMS

·  Outage Coordination Improvements – ROS

·  Switchable Generation – WMS

·  Distributed Energy Resources – WMS

·  Real-Time Cooptimization – WMS

·  Multi-Interval Real-Time Market – WMS

·  Future Ancillary Services – TAC

·  Smart Meter Texas – Retail Market Subcommittee (RMS)

·  Review of Planning Processes – ROS

·  Implementation of Outage Scheduler Revisions (NPRR219 and SCR783) – ERCOT

Protocol Revision Subcommittee (PRS) Report (see Key Documents)

John Varnell presented Revision Requests for TAC consideration; Ann Boren noted ERCOT Opinions for each. Mr. Varnell noted that the TAC-remanded NPRR641, Season Definition Change for Switchable Resources Reporting Unavailable Capacity, will remain at PRS until completion of the related ERCOT whitepaper and review by WMS.

NPRR654, Discontinue Ancillary Service Requirement Methodology Assessment Report

NPRR655, Discontinue Contingency List Changes Due to Weather Report

NPRR657, Discontinue Backup Control Plan Submittal Results, Dispatch Instructions Compliance Metrics, and Backup Control Plan Test Dates and Results Summary Reports

NPRR661, Discontinue Posting Profile Data Evaluation Report

NPRR677, Remove Outdated NERC Reference

Amanda Frazier moved to recommend approval of NPRR654, NPRR655, NPRR657, NPRR661, and NPRR677 as recommended by PRS in the respective 2/12/15 PRS Reports. Bob Wittmeyer seconded the motion. The motion carried unanimously.

NPRR668, Updates to Texas SET Implementation Guide Process

Mr. Varnell noted that the RMS had not completed review of all documents NPRR668 proposes to post to the Market Information System (MIS).

Ms. Frazier moved to table NPRR668. Mr. R. Jones seconded the motion. The motion carried unanimously.

NPRR676, Emergency Response Service (ERS) Offer Disclosure

Market Participants discussed the 2/26/15 ERCOT comments to NPRR676.

Ms. Frazier moved to recommend approval of NPRR676 as recommended by PRS in the 2/12/15 PRS Report and as amended by the 2/26/15 ERCOT comments. Eric Goff seconded the motion. It was noted that the 2/26/15 ERCOT comments clarify that ERCOT will disclose only the Qualified Scheduling Entity (QSE) and not the individual ERS Resource. The motion carried unanimously.

Revision Requests Previously Tabled by TAC (See Key Documents)

NPRR642, Constraint Management During Energy Emergency Alerts

TAC took no action on this item.

NOGRR136, Verifying QSE Capability to Operate in CFC

Ms. Frazier moved to approve NOGRR136 as recommended by ROS in the 1/8/15 ROS Report. Mr. Ross seconded the motion. The motion carried unanimously.

ROS Report (see Key Documents)

Joel Firestone reviewed recent ROS activities. Mr. R. Jones expressed concern for differences between ERCOT and the North American Electric Reliability Corporation (NERC) performance standards for voltage, particularly the periodicity of reactive testing requirements, and requested that TAC assign ROS the task of harmonizing the ERCOT testing requirements with the NERC Standards. Market Participants discussed the need to move away from real-time testing in ERCOT’s energy only market, and instead move to using historical data. Ms. Stephenson referred the issue to ROS; Mr. Firestone noted that the NERC Reliability Working Group (NRWG) is revising its scope, and would likely be the ROS forum for initial discussions.

Nodal Operating Guide Revision Request (NOGRR) 132, Automatic Under-Voltage and Under-Frequency Load Shedding Protection Systems --Load Restoration

Ms. Frazier moved to approve NOGRR132 as recommended by ROS in the 2/5/15 ROS Report. Mr. R. Jones seconded the motion. The motion carried unanimously.

WMS Report (see Key Documents)

Bob Helton reviewed recent WMS activities.

2015 DAM Collateral Factors

Mr. R. Jones moved to approve the 2015 DAM Collateral Factors. Ms. Frazier seconded the motion. The motion carried unanimously.

RMS Report (see Key Documents)

Kathy Scott reviewed recent RMS activities.

Commercial Operations Subcommittee (COPS) Report (see Key Documents)

Michelle Trenary reviewed recent COPS activities.

Unregistered Distributed Generation

Ms. Trenary presented the 4th Quarter 2014 Unregistered Distributed Generation (DG) Report and summarized paragraph (5) of Protocol Section 16.5, Registration of Resource Entity. Market Participants expressed concern for treatment and reporting of DG between the old and new registration thresholds; questioned whether installed DG would be grandfathered upon reduction of the DG registration threshold; and noted registration becomes increasingly important as DG continues to grow. Ms. Stephenson requested COPS discuss impacts of changes to the registration threshold.

Load Profiling Guide Revision Request (LPGRR) 054, Alignment with NPRR661, Discontinue Posting Profile Data Evaluation Report (Vote)

Ms. Trenary recommended that LPGRR054 be tabled until the ERCOT Board considers NPRR661. It was noted that costs for LPGRR054, and similar Revision Requests that discontinue the posting of various reports, is due to removing code from the MIS.

Mr. Goff moved to table LPGRR054. Mr. Ross seconded the motion. The motion carried unanimously.

Ancillary Service Redesign Update

Paul Wattles reviewed a draft agenda for the March 11, 2015 workshop regarding NPRR667, Ancillary Service Redesign, and welcomed stakeholder input.

Other Business

Ms. Stephenson requested that Market Participants familiarize themselves with NPRR638 in preparation for discussion at the March 26, 2015 TAC meeting.

Adjournment

Ms. Stephenson adjourned the February 26, 2015 TAC meeting at 11:01 a.m.

APPROVED Minutes of the February 26, 2015 TAC Meeting /ERCOT Public

Page 2 of 6

[1] Key Documents referenced in these minutes may be accessed on the ERCOT website at: http://www.ercot.com/calendar/2015/2/26/31960-TAC