1. 1 Texas Data Transport & MarkeTrak Systems (TDTMS) Update to RMS February 2, 2016 Jim Lee (AEP) – Chair Monica Jones (NRG) – Vice Chair

2. 2016 Leadership Elections 2 At the January 6 th meeting, TDTMS held elections for 2016 leadership: Chair – Jim Lee (AEP) Vice Chair – Monica Jones (NRG) & Isabelle Durham (CNP) Although elected, due to additional responsibilities with her company, Isabelle Durham can no longer serve as part of TDTMS leadership. A huge THANK YOU!! to Isabelle for her numerous years as TDTMS leadership and the invaluable time & effort she has provided in support of TDTWG/TDTMS throughout the years!

3. MarkeTrak API Reporting Updates 3 ERCOT presented updates to the MarkeTrak Performance Metric report including input solicited from current API users. Proposed SLO metrics will be finalized upon completion of ERCOT analysis, and presented at the February TDTMS (2/4/15) meeting.

4. SCR786 - TDTMS Joint Efforts with TXSET 4 Due to the multi-faceted nature of SCR786, Retail Market Test Environment, impacting Retail market systems and EDI transactions, TDTMS and TXSET will work together to support implementation of SCR786. As a result, TXSET has graciously agreed to allow Day 2 of each monthly TXSET meeting to be dedicated to any combined efforts related to SCR786. Starting on February 18, TDTMS and TXSET will jointly meet to discuss items and provide recommendations to ERCOT including (but not limited to): –Detailed Business Requirements –Market Communications/Outreach/Training –Market Participant System Changes –Potential Change to Flight Documentation/Scripts –Environmental Logistics

5. TDTMS 2015 Accomplishments 5 1.Successfully integrated Texas Data Transport Working Group (TDTWG) and the MarkeTrak Task Force (MTTF) into the Texas Data Transport & MarkeTrak Systems Working Group (TDTMS) –Created TDTMS Scope, TDTMS Procedures & TDTMS Issues Document –Modified RMS Procedures and TDTMS Implementation Guide to reflect the working group changes & incorporated MarkeTrak Task Force activities 2.Worked jointly with other Retail market working groups to provide complete analysis and developed a full business case to support SCR786, Retail Market Test Environment 3.Supported Market projects as directed –TDTMS representatives provided technical expertise to analyze MarkeTrak API performance data and modified the MarkeTrak API performance metrics accordingly –Evaluated a possible upgrade to NAESB EDM v2.2 but determined the financial cost outweighed the benefit.

6. TDTMS 2015 Accomplishments (con’t) 6 4.North American Energy Standards Board –Created the NAESB Retail Market Quadrant Electronic Delivery Mechanism (EDM) document and ensured alignment with the ERCOT Retail Market TDTMS NAESB EDM v1.6 Implementation Guide –TDTMS representatives participated in NAESB governance meetings to clearly explain the business process changes to ensure NAESB decision-making bodies could support ERCOT Retail Market requirements for inclusion in the NAESB EDM v2.0 Implementation Guide 5.ERCOT System Outages and Communications –Worked actively with NAESB to enhance their Transportation standards for more efficient running of the ERCOT Retail Market –Continued support of ERCOT resolution efforts in addressing each outage and/or degradation of service experienced and provided findings to RMS 6.Reviewed, modified, and recommended approval of the 2016 Retail Market Services IT SLA to RMS

7. TDTMS 2015 Accomplishments (con’t) 7 7.Monitor Market Metrics reported by ERCOT to PUCT –Reviewed and monitored ERCOT-reported Market Metrics and provided a forum for Market Participants’ questions and/or issues regarding these quarterly performance statistics 8.Technical Connectivity –Continued to work with ERCOT and Market Participants to resolve connectivity issues as experienced –Interacted with ERCOT as necessary to help insure market impacts for NAESB outages were minimal

8. 8 Next TDTMS meeting date: February 4 th, 9:30am start time (In-person METCenter) Upcoming Agenda Items: 2016 Goals MarkeTrak API SLO SCR786 Business Requirements MarkeTrak Analysis - Switch Hold Process http://www.ercot.com/committees/board/tac/rms/tdtms/index.html

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