Retail Market Subcommittee Update to TAC Kathy Scott March 26,

Retail Market Subcommittee (RMS) 2015 Goals Align Retail Market Subcommittee Goals with TAC goals and the strategic vision of the ERCOT Board of Directors. Maintain market rules that support Retail Market processes that are consistent with PURA and PUC. Support the appropriate incorporation of demand response and load participation in the Wholesale market. Explore and Implement Retail Market Enhancements. Facilitate market enhancements necessary to leverage the capabilities of Advanced Metering Systems in the retail market. Maintain market rules that support open access to the ERCOT retail market. Continue to work with ERCOT to develop Protocols and other market improvements that support increased data transparency and data availability to the market. If board approved, support all phases of the Retail Data Transport Upgrade to NAESB EDM and ERCOT’s implementation of a new Retail Testing Environment, including planning, execution, testing and market education & communication. Sunset MarkeTrak Task Force, if plan is developed and finalized to transition all MarkeTrak Taskforce responsibilities to the Texas Data Transport Working Group. Assess and develop Retail Market training initiatives. 03/03/15 RMS Vote: These 2015 RMS Goals were Unanimously Approved by RMS and RMS Recommends TAC’s Approval of our 2015 Goals as listed above. March 26, 2015RMS Update to TAC2

RMGRR126 Voting Recommendation RMGRR126, Additional ERCOT Validations for Customer Billing Contact Information File ◦ This Retail Market Guide Revision Request (RMGRR) requires ERCOT to validate that the submitting Competitive Retailer’s (CR’s) DUNS Number (DUNS #) and the Electric Service Identifiers (ESI IDs) provided in the Customer Billing Contact Information file are valid in the ERCOT registration system. ◦ 02/03/15 RMS: RMS unanimously Approved RMGRR126 with TX SET January 26, 2015 comments. Impact Analysis review scheduled on March 3, 2015 RMS meeting. ◦ 03/03/15 RMS Impact Analysis Review and Vote:  Cost Between $35k and $55k  The timeline for implementing this Retail Market Guide Revision Request (RMGRR) is dependent upon ERCOT Board prioritization and approval. Please see the Project Priority List (PPL) for additional information.  Estimated project duration: 4 to 6 months  No Impacts to ERCOTs Staffing ◦ 03/03/15: RMS Unanimously Approved RMGRR126 Impact Analysis with a Priority of 2015 and Rank of ◦ 3/12/15: PRS Unanimously Approved RMS’ recommendation. 03/26/15: RMS Unanimously Recommends TAC’s Approval of RMGRR126 with a Priority of 2015 and Rank of March 26, 2015RMS Update to TAC3

RMGRR128 Voting Recommendation RMGRR128, Reinstate Critical Care Status After Resolution of an Inadvertent Gain (Vote) ◦ This Retail Market Guide Revision Request (RMGRR) provides guidelines for a Competitive Retailer (CR) to request that a Transmission and/or Distribution Service Provider (TDSP) restore a critical care status to an Electric Service Identifier (ESI ID) that may have been removed from the ESI ID due to an inadvertent gain.  02/03/15 RMS: RMS unanimously Approved RMGRR128 with TX SET January 26, 2015 comments. Impact Analysis review scheduled on March 3, 2015 RMS meeting.  03/03/15 RMS Impact Analysis Review and Vote:  No project required. This Retail Market Guide Revision Request (RMGRR) can take effect upon the Technical Advisory Committee (TAC) approval. No impacts to ERCOT’s Staffing  03/03/15: RMS Unanimously Approved RMGRR128 ◦ 03/26/15: RMS Unanimously Recommends TAC’s Approval of RMGRR128. March 26, 2015RMS Update to TAC4

Retail Market Training Taskforce (RMT TF) RMS unanimously Approved the Creation of our New Retail Market Training Taskforce (RMT TF). ◦ “Save the Date”:  Kick-Off Meeting scheduled April 15, 2015 at 1:00 PM  ERCOT Met Center Conference Room 206B and via Web Conference   WebEx Conference  Teleconference:  Meeting number:  Meeting password: Rmttf  Leadership:  Debbie McKeever – Oncor  Sheri Wiegand – TXU Energy  Tomas Fernandez - NRG March 26, 2015RMS Update to TAC5

RMGRR129 Pending Voting Status: RMGRR129, Revision to Customer Rescission Completion Timeline (Vote) ◦ This Retail Market Guide Revision Request (RMGRR) provides additional guidelines regarding specific timing and responsibilities for a Competitive Retailer (CR) to complete a Customer Rescission MarkeTrak issue after completion of a Switch Request. Once a Customer Rescission MarkeTrak issue has been submitted, the losing CR has two Business Days to agree to the Customer Rescission MarkeTrak issue, and another two Business Days to send a backdated 814_16, Move-In Request, once the Transmission and/or Distribution Service Provider (TDSP) has updated the MarkeTrak issue status to “Ready to Receive.”  03/03/15 Language Review and Vote: RMS unanimously Approved RMGRR129 as recommended by the MarkeTrak Taskforce (MTTF).  04/07/15: RMGRR129 Impact Analysis review will be considered by RMS March 26, 2015RMS Update to TAC6

Pending Voting Items Status: Texas Standard Electronic Transaction (SET) Working Group Procedures (Vote) and Texas Standard Electronic Transaction (SET) Implementation Guides Change Control Process (Vote)  Note: TX SET Implementation Guides Change Control Process supports NPRR668 (Tabled at TAC): Due to several redline changes that were made prior to RMS that requires TX SET’s discussion and consensus both of these votes were postponed until the April 7 th RMS meeting. March 26, 2015 RMS Update to TAC7

Smart Meter Texas Portal Change Requests: RMS Voting Update: ◦ AMWG Change Requests through (Vote)  Change Control , , , , , , , and  Approved by RMS with (1) NO vote from Consumer Segment  Change Control  RMS Approved “Tabling” CR for additional discussions at the March 25, 2015 Advanced Metering Working Group meeting.  Question: Should this functionality be available to Customer’s through Smart Meter Texas or only available through their Competitive Retailer? March 26, 2015RMS Update to TAC8

SMT Portal Change Requests Cost Estimates: SMT Change Requests Implementation Cost Estimates (Vote) Update: ◦ AMWG Change Request , AMWG Change Request , AMWG Change Request , AMWG Change Request , AMWG Change Request , AMWG Change Request  All were Unanimously Approved by RMS  Note: AMWG Change Request , , , , , These RMS Approved Cost estimates will be reviewed and recommended by AMWG for project priority and implementation schedule. ◦ AMWG Change Request  Motion to “Table” Change Request was Approved pending AMWG’s additional discussion concerning research (number of customer’s impacted) and if cost benefit to implement is justified. March 26, 2015RMS Update to TAC9

Smart Meter Texas Unplanned Outage! Date: Saturday March 21, :00AM CST ◦ Smart Meter Texas portal began experiencing an unplanned outage today Saturday March 21, 2015 from 06:00AM CST  As a result of this outage, the following SMT services are unavailable:  Portal and associated services such as:  Registrations,  System login,  Home Area Network (HAN),  On Demand Reading (ODR) functionality,  API & Reporting requests  Originally CRs were able to access their Rep of Record 15 Minute Interval Data via FTPS, along with there were no impacts to Bulk and Enrollments. Once SMT systems failed over to alternate server created a database failure causing all functionality to become disabled including FTPS, Bulk and Enrollment functionality. Date: Sunday March 22, :00PM CST ◦ Instead of trying to recover the legacy systems, a decision as made by the JDOA to go- live with the new Hardware Refresh platform that was a planned outage originally scheduled on March 27-29, This decision allowed CRs the ability to access their 15-minute Interval Data on their FTPS as early as 10:35 PM Sunday, March 22, March 26, 2015RMS Update to TAC10

Smart Meter Texas Unplanned Outage! Date: Wednesday, March 25, 2015  Smart Meter Texas continued to experience an outage affecting the following:  Website Access,  Home Area Network Services,  On Demand Read Services,  API Services,  Enrollment Services and  Historical Backfill Services and Full System Refresh functionality. Smart Meter Texas Current Status: ◦ Planned maintenance activities continue to be performed at SMT to cut over all functionality and historical data to the new infrastructure platform. This activity will require multiple days outage of all SMT services with the exception of CRs access to their daily 15-minute Interval Data via their FTPS. REP’s access to their daily LSE files via their FTP folders continues as normal.  SMT teams encountered unexpected problems restoring the SMT database in the refreshed environment, which has required additional efforts to prepare that database. Currently, the SMT team expects go live to be early Monday, March 30 th, opposed to the previously planned Friday morning of March 27 th, The SMT team expects to be fully caught up with processing the daily interval data by the middle of next week. March 26, 2015RMS Update to TAC11

ERCOT IT Retail Incidents Report! ERCOT’s Premature transitioning of MarkeTrak Issues (Issue auto-closed or state incorrectly re-assigned)  This occurred on February 4, February 11 and February 24, 2015  Investigation determined that a database parameter was getting changed by the MarkeTrak application.  Root cause under investigation with Vendor System issue resulting in duplicate transactions  On Tuesday, February 17, 2015, from 10:00 – 14:00  ERCOT experienced a Retail Processing system issue that resulted in duplicate transactions being forwarded to Market Participants System issue resulting in impacts to market facing applications  Thursday, March 5, 2015 from 14:15 through 17:05  ERCOT experienced a system issue on March 5, 2015, from 14:15 through 14:50. As a result Market facing systems were unavailable or not performing as expected:  Find Transaction, Find ESIID, MarkeTrak and MPIM impacts.  In addition, Retail transaction processing was degraded from 14:15 until 17:05, impacting 3,685 transactions.  At 17:05 transactions began processing normally and the backlog was cleared at 17:25. ERCOT will provide root cause analysis and process improvements to RMS March 26, 2015RMS Update to TAC12

Announcement – Save the Dates! CenterPoint Energy’s CR Workshop ◦ Date: Tuesday, April 28, 2015 ◦ Time/Location: Being Finalized RMS/COPS Workshop V: IDR Meter Protocol Requirement Threshold ◦ Date: Tuesday, May 5, 2015  ERCOT Met Center Conference Room 206  1:30 p.m.- 4:30 p.m. (Following RMS)  RMS-WORKSHOPS RMS-WORKSHOPS March 26, 2015RMS Update to TAC13

Announcement – Save the Dates! Inadvertent Gain (IAG) Training ◦ Tuesday, May 12, 2015:  9:30 a.m. - 4:00 p.m. at ERCOT MET Center, Room 206 ◦ Friday, May 15, 2015:  9:30 a.m. - 4:00 p.m. at CenterPoint Energy, Room 1360 ◦ Friday, June 12, 2015:  9:30 a.m. - 4:00 p.m. at Oncor Dallas Office March 26, 2015RMS Update to TAC14

Questions? 15March 26, 2015RMS Update to TAC