May 2, 2017 Retail Market Subcommittee (RMS) Update to COPS Kathy Scott May 10, 2017

Revision Requests Voting RMGRR146, Retail Market Guide Revision Request Process (Vote) This Retail Market Guide Revision Request (RMGRR) expands the list of RMGRRs requiring ERCOT Board approval and provides additional clarifications to the RMGRR process. These process changes were discussed at the 8/25/16 TAC/TAC Subcommittee Structural and Procedural Review, the 9/29/16 TAC meeting, and the 10/10/16 HR & Governance Committee meeting. http://ercot.com/content/wcm/key_documents_lists/117469/146RMGRR-01_Retail_Market_Guide_Revision_Request_Process_012617.doc Motion to Approve RMGRR146 was Unanimous Note: This vote will require TAC’s Approval during their May 24th meeting. May 10, 2017 RMS Update to COPS

TX SET Change Control Voting 5/2/17: Motion to Approve Amending Change Control 2017-805 and 2017-806 from “Version 4.0” to state “a Future Release” as recommended by TX SET Change Control 2017-805 – Special Characters (Vote) Updates made to all the TX SET Implementation Guides to allow the receiver of the transaction containing Special Characters to determine to either accept the transaction or to respond with a valid rejection. Unanimously Approved Change Control 2017-806 – MOU/EC TDSP Standardization (Vote) Updates made to all of the TX SET Implementation Guides to replace “MCTDSP” with “MOU/EC TDSP”. May 10, 2017 RMS Update to COPS

Working Group/Taskforces Updates Retail Market Training Taskforce (RMTTF) Retail Instructor Led Classes (Reminder) DALLAS Oncor - Completed Retail 101 – Wednesday, May 3, 2017 Inadvertent Gain Training – Thursday, May 4,, 2017 HOUSTON CenterPoint Energy - Scheduled Retail 101 - Tuesday, September 26, 2017 Inadvertent Gain/Loss – Wednesday, September 27, 2017   Classroom WebEx TOTAL Retail 101 29 13 42 Inadvertent Gain/Loss 28 20 48 May 10, 2017 RMS Update to COPS

Working Group/Taskforces Updates Training Curriculum Retail 101 – High level overview of the ERCOT Retail Market… History of the Texas competitive electricity market Roles of Market Participants – ERCOT, REPs, TDSPs, PUCT Market Rules Retail Transactions Impacts of Advanced Metering technology Market data transparency Inadvertent Gain and Loss Training - Closer look at the IAG/IAL market process… Fundamentals of the established market process including rescissions Facilitated discussion of best practices End to end demo of the MarkeTrak subtypes IGL Market reporting May 10, 2017 RMS Update to COPS

MarkeTrak On-line Module Training via ERCOT Learning Management System How many market participants have viewed the Online training modules? Which segment of the market do the viewers represent? May 10, 2017 RMS Update to COPS

Working Group/Taskforces Updates Texas Data Transport and MarkeTrak Systems (TDTMS) Retail Market Testing Environment User Guide Nearing the end of development – final touches to be completed in May. Parking lot items: Where should RMTE UG reside? Incorporate into Retail 101 training once complete Update MarkeTrak User Guide “Market Rule” subtype, if necessary MarkeTrak Upgrade Lessons Learned: Pre & Post-Implementation Market Calls – Discuss “known” impacts Pre-Implementation Testing Coordination – API vs. GUI – Solicit volunteers Suggested Pre-Implementation Demo and Training – Demo with volunteer testers Browser (IE) Compatibility Issues- Communicate specific known changes May 10, 2017 RMS Update to COPS

Working Group/Taskforces Updates Texas Data Transport and MarkeTrak Systems (TDTMS) TDTMS and MIS Change Visibility Subgroup Combining Commercial and Retail Efforts : Jim Lee (TDTMS’ Chair) extended an invite to MIS Change Management (MDWG Subgroup) leadership and its attendees to attend TDTMS since their concerns and issues voiced at RMS are the same where both teams should share and combine efforts to develop market-wide lessons learned. Next TDTMS meeting: May 17th, 2017 9:30am – HALF DAY ONLY In-person @ ERCOT MET Center and WebEx TDTMS Agenda Items: Finalize Retail Market Test Environment User Guide ERCOT Release/Upgrade Lessons Learned May 10, 2017 RMS Update to COPS

Working Group/Taskforces Updates Advanced Metering Working Group (AMWG) Cycle Read Analysis (March 28th Report) Next Cycle Read Analysis report scheduled in July This report’s continuation/value will be determined by stakeholders May 10, 2017 RMS Update to COPS

Working Group/Taskforces Updates Advanced Metering Working Group (AMWG) Additional Reports: Per stakeholder’s requests, SMT provided a 1-time SMT log-in report: Sept. – Dec. 2015 Sept. = 42,723 Oct. = 44,181 Nov. = 49,964 Dec. = 39,486 Year 2016 = 692,896 log-ins…57,741/month 2017 Jan. = 52,009 Feb. = 43,771 Unique log-in data not available May 10, 2017 RMS Update to COPS

SMT Statistics for March 2017 SMT Help Desk Calls 373 (-103) SMT Help Desk Tickets 353 (-102) Residential = 266 (-96) GUI access issues = 60 (- 49) {U/ID & P/W Invalid} Registration issues = 151 (- 41) {Typo errors} 3rd Party Issues = 30 (+16) {Required Registration Assistance} SMT Registered Users (Res) 84,419 (+ 2,281) ESIs in SMT 7,287,699 (+10,472) Active Meters in SMT 7,226,826 (+10,963) May 10, 2017 RMS Update to COPS

SMT Statistics for March 2017 Active Energy Data Agreements 2,649 (4/1/17) Total * Energy Data Agreements 2,921 (-12) * Active and Pending AEPC =116; AEPN = 19; CNP = 1,866; Oncor = 826; TNMP = 94 HAN Device Agreements 245 (NC) HAN Devices 8,679 (-71) 3rd Parties Registered @ SMT 136 (+7) REPs Registered @ SMT 115 (+1) On Demand Reads Customer 6,106 REP 21 3rd Party 5 May 10, 2017 RMS Update to COPS

ERCOT Updates: Service Availability – April Retail Market IT systems met all SLA targets Incidents & Maintenance – April 04/12/17 (3:20 AM) – 04/13/17 (12:10 PM) – Retail processing degradation ERCOT failed to process 129 (814_26) TX SET transactions Other processing was not impacted 04/15/17 (11:17 AM – 12:00 PM) – Market Information System (MIS) Outage Retail Application components of the MIS were unavailable, including Find ESIID and Find Transaction 04/23/17 – Planned Maintenance (Site Failover – Retail Processing, MarkeTrak, FindESIID, FindTransaction) 04/25/17 (2:19 PM – 2:53 PM) – MarkeTrak API Outage May 10, 2017 RMS Update to COPS

ERCOT Updates: MarkeTrak Performance – April May 10, 2017 RMS Update to COPS

ERCOT Updates: February 2017 Inadvertent Gains Reporting http://ercot.com/content/wcm/key_documents_lists/108483/15._Inadve rtent_Stats_-_February_2017.pptx Retail Project’s Update for May 2017: http://ercot.com/content/wcm/key_documents_lists/108483/15._RMS_ May_2017_Project_Update.pptx Troy Anderson plans to provide additional information during RMS’ July 11th meeting concerning the implementation schedule of NPRR778 2017 Price Responsive Load Survey: http://ercot.com/content/wcm/key_documents_lists/108483/15._RMS_ 2017_4CP__Retail_DR_Analysis.v2.pptx May 10, 2017 RMS Update to COPS

“Save the Dates” TDSP’s 2017 CR Workshops: Sharyland Utilities Workshop – Planned for May 2nd has been postponed—new date, time and location will be communicated to the Market once finalized. Oncor REP Workshop – Arlington May 17 at 6:00 PM – REP Networking Event scheduled at Texas Rangers Baseball Game May 18 at 8:30 AM – REP Workshop - Sheraton Hotel RMS cancelled our June 6, 2017 meeting due to potentially a very light agenda– ERCOT’s meeting calendar has been updated accordingly. May 10, 2017 RMS Update to COPS

Questions? May 10, 2017 RMS Update to COPS