COPS MAY 2014 UPDATE TO TAC 5/29/2014 Harika Basaran, Chair Tony Marsh, Vice Chair

COPS MAJOR DISCUSSION ITEMS 867_03 Data Loading Time Line Changes and Error Code Changes ERCOT saw an opportunity to extend the time allowed for MPs submit their IDR meter data so that it can be used in Initial settlement. Instead of running the batch at 3 am, they will run it at 1 pm. Will be implemented with Settlement Upgrade project ( December 7, 2014). This will help entities like Brazos and LCRA with remote IDR meters. COPS endorsed this change unanimously. Market Enhancements and ORDC Loads in SCED ERCOT completed 4 training sessions and one specific to CSWG. If adder is zero, calculated amounts won’t be pushed in Extracts. But SID (Settlement Input Data, NOT approved ones, comes next day after the OD) extracts will have the inputs like HSL, discount factor etc.

COPS MAJOR DISCUSSION ITEMS cont. Settlement Systems Upgrade Project Update Go live targeted 12/7/2014. Huge project to replace 3rd party software with in-house code. Currently in testing phase, NPRR 580 and 467 are part of this. No impact on MPs are expected. ERS settlement will still reside outside of the main settlement system and done by another group manually and then fed into settlement system. NPRR570, Phase 2 Settlement Timeline Update (OD+5) Implemented with OD 5/1/2014. Neither ERCOT nor MPs have observed any issues so far. Need to go through some long holidays. CSWG/COPS will continue to monitor and report back to TAC.

CSWG Draft NPRR 628 - Notification of Financial Impact of Settlement Disputes COPS endorsed it unanimously so that CSWG can file it officially. Language for clarification and to match what ERCOT actually is doing. CSWG submitted it on 5/21/14. Will be on PRS agenda in June. NPRR 618- Market Notices for Resettlement Statements and True-up Settlement Timeline Changes This Nodal Protocol Revision Request (NPRR) replaces requirements to post Notices on the Market Information System (MIS) for communication of Day-Ahead Market (DAM) and Real-Time Market (RTM) Resettlements and True-Up Settlement timeline changes with Market Notices. MPs engaged in settlement do not use MIS for resettlements Notices and prefer e-mail Notices for timely communication. COPS endorsed NPRR 618 unanimously and filed comments to PRS. COPMGRR037 Market Notification for Ad Hoc Invoices and COPMG Cleanup also filed to revise COPMG accordingly.

PWG COPS confirmed 2014 Leadership Ed Echols, ONCOR, Chair Jim Lee, Direct Energy, Vice Chair Topics of Discussion Review Weather Sensitivity Determination (in progress). Review BUSIDRRQ vs AMS meter data flow (in progress). Removal of Profile Development Cost Recovery Fee – Protocol Section 9.18 (completed). Evaluate the Integration of the Validation and Assignment Processes Combine quarterly and annual validation processes (LPGRR050 - complete). Review language to allow TDSP to Manage the initial profile assignment process (in progress). Review Oil & Gas Assignment Validation Process (in progress). Date Meeting Title (optional)

MISUG update from April 17 meeting ORDC MIS Changes Information was presented regarding the changes to MIS for the ORDC release. The following reports will be added: 13221 SCED Total Available Reserves and Price Adders Based on ORDC (Public). 13220 Real-Time Reserve Prices Based on ORDC for 15 Minute Settlement Interval (Public). 13222 RTD Indicative Total Available Reserves and Price Adders Based on ORDC (Public). 13231 Historical Real-Time Reserve ORDC Price Adder (Public). 13233 LOLP Distribution by Season and TOD Block (Public). Methodology for Implementing ORDC Real-Time Reserve Price Adder. NOGRR084 – Tabled Requirements for this report will be revisited at MISUG’s next official meeting, after the ORDC implementation.

MISUG update from April 17 meeting cont. Upcoming Project Efforts Market Information Repository (MIR) replacement project. Phase 1 Implemented 04/13/2014 – Internal. Phase 2 Implemented 04/14/2014 – Internal. Phase 3 To Be Implemented 04/22/2014 – File names to change. Updated file name convention for inclusion of milliseconds. TAC Reporting on ERCOT Manual Efforts & Market Report True-Up 15 reports recommended to discontinue - eliminates ~500 hrs of manual work. Market Participants to provide feedback by May 2, 2014. Special meeting to draft any required NPRRs as a result of feedback on May 5, 2014. True-Up Julie Thomas will coordinate effort to review existing Market Reports. Bi-weekly touch-base conference calls will start April 25, 2014. Next Meeting: July 15, 2014

OTHER CANCELLED JUNE COPS MEETING. MEETING EVERY OTHER MONTH IS COPS’ GOAL FOR 2014. NEXT COPS MEETING IS ON JULY 16 WEDNESDAY, 2014.

Questions?