1. September 24, 2015 Retail Market Subcommittee Update to TAC Kathy Scott September 24, 2015 1

2. TNMP’s Database Version Upgrade TNMP Planned Maintenance Outage: ◦ During the outage, the supporting databases will be upgraded to a newer version of Oracle. The outage is lengthy in order to allow a controlled start-up after the outage, to process backlogged data prior to declaring completion, and to allow enough time for the planned contingent back-out in the event that problems arise. Days Affected: ◦ Saturday, 09/26/2015, 08:00 AM to Monday, 09/28/2015, 06:00 AM During this outage: ◦ TNMP will be able to receive EDI transactions, but will hold them for processing until the outage is complete. AMS-related service orders that need to be worked on Saturday should be sent to TNMP using the market-defined safety process and they will be manually worked through TNMP’s AMS System. Automated Advanced Meter service order processing will be delayed until completion of the outage. ◦ LSE data files for reading data dated 09/25/2015 and 09/26/2015 will be delayed to ERCOT and Smart Meter Texas Portal (SMTP) until 09/28/2015. ◦ The TNMP IDR Data Viewer will be unavailable for use. September 24, 2015RMS Update to TAC2

3. Sharyland’s (SU) CIS Upgrade SU’s CIS System Upgrade Planned Outage ◦ Sharyland will be implementing a CIS system upgrade beginning Wednesday September 30, 2015. The upgrade will require a complete system outage including EDI functionality. Days Affected: ◦ September 30 -October 4, 2015  The upgrade will require a complete system outage including EDI functionality. The outage will begin at 5:00 PM on Wednesday, September 30, 2015, and will last until 7:00 PM Sunday October 4, 2015. During this Outage: ◦ Sharyland will be unable to send/receive transactions during the outage period and requests market participants to resend any transactions that fail to be delivered once the outage is complete. ◦ MPs should utilize the Safety Net process for Move-in Orders (MVI) and Reconnects (RNP) during the outage. Sharyland requests that the Safety Net spreadsheets be sent in the standard format to the ERCOTSafetyNets@sharyland.com mailbox.ERCOTSafetyNets@sharyland.com ◦ For emergency situations arising during this outage, please call the Sharyland Customer Service number 800-442-8688 (972-352-3049 weekend). September 24, 2015RMS Update to TAC3

4. August AMWG Meeting Highlights: ◦ Smart Meter Texas system patches are completed  5 consecutive weekends of updated scheduled 7/5 – 8/2 ◦ Routine monthly maintenance now scheduled on 3 rd Sunday of each month with first scheduled on 9/20/15 ◦ Disaster Recovery (DR) exercise occurred 8/21-8/22 and 8/28 & 8/29. There were no issues identified. ◦ Revisions to the AMWG Change Request Process currently underway and AMWG reviews of initial draft planned on Sept. 22 nd. September 24, 2015RMS Update to TAC4 Advanced Metering Working Group (AMWG)

5. September 24, 2015 09/01/15 RMS: ◦ AMWG Change Requests 2015-041 (Vote)  (RMS Approved 08/04/2015)  Allow enrollment for new customer(s) to obtain 12 month’s of historical usage for RORs and 3rd parties  Cost Estimate: $40-$60K  09/01/15 RMS Discussion and Vote: Motion to “Table” and refer back to AMWG for more discussion/clarification, to determine if this Change Request includes REP of Records or does it only apply to 3rd parties requesting 12 months of usage data and also re-examine cost estimate for accuracy.  Motion to Table was Unanimously Approved. RMS Update to TAC5

6. SMT Help Desk Calls 971 (+209) SMT Help Desk Tickets865 (+162) ◦ Residential = 768 (+187)  GUI access issues = 292 (+109)  Registration issues = 268 (+23) SMT Registered Users (Res) 60,065 (+ 1,173) ESIs in SMT 7,048,982 (+16,462) Active Meters in SMT 6,977,964 (+16,441 ) SMT Statistics for July 2015 6 September 24, 2015RMS Update to TAC

7. Energy Data Agreements 249 (+125) ◦ AEPN = 1; CNP = 59; Oncor = 189 HAN Device Agreements 389 (+1) HAN Devices 9,471 (-31) 3 rd Parties Registered @ SMT 66 (+1) REPs Registered @ SMT 98 (NC) On Demand Reads ◦ Customers 4,510 ◦ REPs 21 ◦ 3 rd Party 2 SMT Statistics for July 2015 7 September 24, 2015RMS Update to TAC

8. Retail Market Training Taskforce (RMT TF) ◦ Retail Market 101 Training  Draft outline complete  Strong emphasis on the general basics for the Retail Market including…  ERCOT Governance process  Retail Market Processes (including TX SET)  Retail Market systems  Note! Details will be included in separate Modules  Timeline for completion and roll out – Jan 2016 ◦ MarkeTrak Web-based Training and Available “Now”  MarkeTrak Overview ----Complete!  Switch Hold Removal ---Complete!  Cancels- with & without Approval----Complete!  ERCOT Learning Management System (LMS) ERCOT Learning Management System (LMS) September 24, 2015RMS Update to TAC8

9. MarkeTrak Taskforce (MTTF) 09/01/15 RMS:  Reviewing Draft RMGRR- Clarification of Inadvertent Gain Valid/Invalid Reject Reasons  To minimize confusion of valid reject reasons to improve the resolution time for Inadvertent Gain processing.  Reviewing Inadvertent Gain Reporting – Impacts by REP  Reviewed current reporting metrics provided by ERCOT to RMS of top 10 REPs, their IAG impacts by volume  Also desire visibility into percentage of IAGs & IALs to overall transactions by REP  Creating buckets by # enrollments  low, medium, and high  Accompanied with respective percentages  Represented graphically  Review and finalize format of reports with recommendation to RMS September 24, 2015RMS Update to TAC9

10. Texas Data Transport Working Group (TDTWG) 09/01/15 RMS: ◦ ERCOT presented 2015 Q2 Performance Measures  http://ercot.com/content/wcm/key_documents_lists/55609/RMS_2Q_2015_PM_ Comparison.pptx http://ercot.com/content/wcm/key_documents_lists/55609/RMS_2Q_2015_PM_ Comparison.pptx ◦ Discussed ERCOT Retail Test Environment (SCR786)  SCR786 Impact Analysis continues to be “Tabled” at PRS for ERCOT to perform further evaluation of the IA, as well as, provide possible alternatives to help reduce or mitigate additional implementation costs.  On August 18, 2015 ERCOT discussed their Retail Test environment alternative options with TDTWG, which required TX SET to take on an action item to discuss market impacts with if the SIM Date is eliminated from the Certification Testing environment.  Next steps:  ERCOT planned to bring both the “full” Impact Analysis (IA) and a possible “alternative” solution to both TDTWG and RMS for recommendations. ERCOT will continue to work through TDTWG to resolve any questions or issues as they arise during their IA process. September 24, 2015RMS Update to TAC10

11. Texas Data Transport Working Group (TDTWG) 09/01/15 RMS: ◦ During the July MarkeTrak Taskforce meeting leadership, as well as, Market Participants expressed a need for the MarkeTrak tool have a place within the responsibility of a standing ERCOT stakeholder ‘working group.’ The recommendation is to combine Data Transport and MarkeTrak Tool responsibilities and change the name to Texas Data Transport & MarkeTrak Systems Working Group (TDTMS).  RMS Unanimously Approved the recommendation and the new name is Texas Data Transport and MarkeTrak Systems (TDTMS)  New Scope statement, revised RMS and TDTMS Procedures and other supporting documentation will be updated to include this new working group name reporting to RMS. September 24, 2015RMS Update to TAC11

12. ERCOT’s Updates! Retail Price Responsive/Demand Response Update ◦ Highlight: ERCOT’s Report reflects the market received 32 MW of load reduction experienced through Demand Response (DR) initiatives.  http://www.ercot.com/content/wcm/key_documents_lists/54219/09.__DSWG_PriceR esponsiveLoadERCOT_090115RMS.ppt http://www.ercot.com/content/wcm/key_documents_lists/54219/09.__DSWG_PriceR esponsiveLoadERCOT_090115RMS.ppt ERCOT External Web Services Secure Sockets Layer Certificate Update ◦ On September 2, 2015, between 11:25 a.m. and 11:30 a.m. CPT, ERCOT successfully updated an expiring Secure Sockets Layer (SSL) certificate that is required for programmatic access to ERCOT’s External Web Services (EWS) Application Programmatic Interface (API) Outreach and Posting of REP Postcard Name and their (800) number to ERCOT website ◦ ERCOT will be reaching out to Retailers to determine the appropriate 35 character name that should be provided on the Switch post cards and to verify and/or correct Retailers 1-800 phone number(s). September 24, 2015RMS Update to TAC12

13. Where Are We With NPRR711? NPRR711, Increase the Interval Data Recorder Meter Mandatory Install Requirement from 700 kW/kVA to 1.5 MW/MVA (Vote) ◦ Workshops:  October 20, 2014: RMS/COPS IDR Required Workshop I  December 2, 2014: RMS/COPS IDR Required Workshop II  January 30, 2015: RMS/COPS IDR Required Workshop III  February 24, 2015: RMS/COPS IDR Required Workshop IV  May 5, 2015: RMS/COPS IDR Required Workshop V  06/02/15 RMS : RMS unanimously directed Workshop leadership to submit “Draft” NPRR to PRS Revision Request Listserv for number assignment and 21 day comment period.  07/16/15 COPS: COPS voted to endorse NPRR 711. The COPS collaborated with RMS during the IDR Meter Protocol Requirements Threshold Workshops. COPS supports the increase of the Interval Data Recorder (IDR) Meter Mandatory Install Requirement from 700 kW/kVA to 1.5 MW/MVA implemented by NPRR711.  08/04/15 RMS: RMS unanimously voted to endorse NPRR711as submitted. Additionally, RMS recommended that RMS and COPS should continue to work on meter data flow issues in order to use the most appropriate technology as possible. For example, RMS desires that 15-minute data be in the same data flow regardless of the origination of the data.  09/10/15 PRS: Following three months of discussions, comments and PRS voting to continue ‘Tabling “ NPRR711 to resolve MPs’ concerns, therefore, RMS leadership agreed that another NPRR 711 RMS-COPS IDR Workshop was necessary and should be scheduled as soon as possible.  September 24, 2015RMS Update to TAC13

14. Save the Dates: ◦ NPRR 711 – RMS-COPS IDR Meter Mandatory Required Workshop VI is at 1:30 PM following the October 6 th Retail Market Subcommittee (RMS) meeting:  http://www.ercot.com/calendar/2015/10/6/75334-COPS-RMS-WORKSHOPS http://www.ercot.com/calendar/2015/10/6/75334-COPS-RMS-WORKSHOPS ◦ RMS-WMS Workshop II: Improving 3 rd Party Access to Smart Meter Texas (SMT)  Friday, October 16, 2015 Workshop II – 9:30 AM – 1:00 PM  http://www.ercot.com/calendar/2015/10/16/73666-RMS-WMS-WORKSHOPS http://www.ercot.com/calendar/2015/10/16/73666-RMS-WMS-WORKSHOPS September 24, 2015RMS Update to TAC14 ERCOT Austin Room 206 7620 Metro Center Dr. Austin, TX 78744 WebEx Conference Teleconference: 877-668-4493 Meeting number: 624 257 839 Meeting password: SMT ERCOT Austin Room 206 7620 Metro Center Dr. Austin, TX 78744 WebEx Conference Teleconference: 877-668-4493 Meeting number: 622 515 443 Meeting password: Nprr711

15. Questions? 15September 24, 2015RMS Update to TAC