January 10, 2017 Retail Market Subcommittee (RMS) Update to TAC Kathy Scott January 26, 2017

RMS Leadership and Accomplishments Election of 2017 RMS Chair and Vice Chair (Vote) Kathy Scott – CenterPoint Energy - Chair Rebecca Reed Zerwas – RERS – Vice Chair 2016 RMS Goals & Accomplishments Report Card January 26, 2017 RMS Update to TAC

New Revision Requests (Vote) RMGRR144, Elimination of REP-Specific Switch Hold Lists This Retail Market Guide Revision Request (RMGRR) eliminates the requirement for Transmission and/or Distribution Service Providers (TDSPs) to maintain a secure list by Retail Electric Provider (REP) Data Universal Numbering Systems (DUNS) of all Electric Service Identifiers (ESI IDs) with switch holds. TX SET recommended Approval of RMGRR144 during SET’s leadership’s update to RMS Motion to Approve was Unanimous Impact Analysis (IA) will return to RMS on 2/7/17 January 26, 2017 RMS Update to TAC

ERCOT Updates: Flight 0217 Schedule Flight 0217 Adhoc Schedule Flight 0217 signup begins 01/11/17 Flight 0217 signup deadline is 01/18/17 (Adhoc, 02/24/17 for Current MPs Only, subject to Flight Administrator and TDSPs’ Approval) Connectivity testing begins 01/24/17 Day 1 transactions begin 02/13/17 Flight 0217 is scheduled to conclude on 02/24/17 (Contingency/Adhoc Period until 04/07/17) Simulated (SIM) Dates will not be used in Flight 0217 Flight 0217 Adhoc Schedule Adhoc signup deadline is 02/24/17 Adhoc connectivity testing begins 02/27/17 Adhoc testing begins no later than 03/24/17 All scripts to be completed by 04/07/17   January 26, 2017 RMS Update to TAC

ERCOT Updates: ERCOT LSE Activity Report & Error Code Updates Associated with implementing NPRR753 & RMGRR134. This Project is scheduled for ERCOT’s Release 1 implementation on March 7-9, 2017: http://ercot.com/content/wcm/key_documents_lists/108470/08._867_03_Error _Codes_Document_v1.2.xls http://ercot.com/content/wcm/key_documents_lists/108470/08._Interval_Data_ LSE_Activity_Report_v1.2.xls http://ercot.com/content/wcm/key_documents_lists/108470/08._Interval_Data_ LSE_Error_Codes_v1.3.xls http://ercot.com/content/wcm/key_documents_lists/108470/08._TDSPReadGen eration_Formv4.1.xls January 26, 2017 RMS Update to TAC

Working Group/Taskforces Updates Retail Market Training Taskforce (RMTTF) Upcoming Retail Instructor Led Classes AUSTIN Georgetown Library Retail 101 – Tuesday, January 31, 2017 MarkeTrak 101 – Wednesday, February 1, 2017 DALLAS Oncor Retail 101 – Wednesday, May 3, 2017 Inadvertent Gain Training – Thursday, May 4,, 2017 HOUSTON CenterPoint Energy Retail 101 - Tuesday, September 26, 2017 Inadvertent Gain Training - Wednesday, September 27, 2017 587 Market Participants have reviewed or completed the online modules Largest ERCOT Training participation of any instructor led training course with over 500 Market Participants attending either in person or via WebEx: RETAIL 101 – 341 attendees (3 classes) MarkeTrak 101 – 157 attendees (2 classes) January 26, 2017 RMS Update to TAC

Working Group/Taskforces Updates Advanced Metering Working Group (AMWG) AMSR Cycle Read Analysis – LSE vs. 867_03 Monthly Scope limited to July AMSR Cycle Reads where the kWh delta was greater than +/- 500 kWh 963 ESI IDs identified 937 ESI IDs root cause determined 26 ESI IDs still under investigation January 26, 2017 RMS Update to TAC

SMT Statistics Year to Year Comparison: January 26, 2017 RMS Update to TAC

PUCT Projects to Monitor in 2017 Project 42786 – Review of Advanced Metering System Web Portals Project 46206– Rulemaking Regarding Governance, Performance, and Funding of Smart Meter Texas Project 46204– Rulemaking Regarding Third Party Authorization to Access Smart Meter Texas Data January 26, 2017 RMS Update to TAC

“Other Business” Digital Certification Renewal Process Discussion http://ercot.com/content/wcm/key_documents_lists/108470/18._Digital_Certificates_Renewal_process.pptx Action Item: ERCOT will take RMS discussions and/or suggestions internally to determine what items can be streamlined or identify potential system improvements that may require an SCR. May take 2 months for ERCOT to complete their investigations and planned to provide feedback to RMS and other Stakeholders. RMS suggested that ERCOT develop online training modules that includes some tips and tricks to assist Market Participants and/or their USA’s with creating, renewing and/or canceling their DUNS’ Digital Certificates. January 26, 2017 RMS Update to TAC

Questions? January 26, 2017 RMS Update to TAC

Technical Advisory Committee January 26, 2017 RMS Update to TAC