1. MISUG TAC Update Jackie Ashbaugh ERCOT 3/7/2011

2. 2 TAC3/7/2011 02/22/2011 Meeting Focus on the high priority items from MISUG: Review task list prioritization from January meeting Review NPRR for security classification changes from SECURE to PUBLIC Collect market MIS dashboard requirements

3. 3 TAC3/7/2011 NPRR329, Correct Security Classification Changes for Extracts/Reports Submitted 2/23/2011 with request for Urgency Urgency was granted Updates the Protocol language to post on MIS PUBLIC for the following reports: –Seven-Day Load Forecast by Forecast Zone –Seven-Day Load Forecast by Weather Zone –Short Term System Adequacy Report –Load Forecast Distribution Factors –Settlement Points List and Electrical Buses Mapping –DAM Ancillary Service Plan –Weather Assumptions –Aggregated Wind Generation Resource Power Potential Forecast –Actual and Forecasted Regional Wind Production –Hourly RMR Services Deployed –Daily RUC Active & Binding Transmission Constraints –Hourly RUC Active & Binding Transmission Constraints –Adverse Weather –System-Wide Demand –State Estimator Load Report - Load by Electrical Bus by Load Zone –State Estimator Load Report - Total System Load on Electrical Buses –State Estimator Load Report - Total ERCOT Generation –Changes to Transmission Facility Status –SCED Shadow Prices and Binding Transmission Constraints –Planned Service Four Coincident Peak Calculations Report –State Estimator Load Report – DC Tie Flows

4. 4 TAC3/7/2011 Dashboard Enhancement Summary from 2/22 MISUG High Priority Changes Make Dashboards Public –Estimate promotion of following dashboards to public domain considering costs and benefit in public communications of: LMP Contour map Load Forecast vs. Actual Real-Time System Conditions SCED Up/Down System Ancillary Services Capacity Monitor New Wind Graph Enhance Real-Time System Conditions Dashboard –Investigate using new 5-minute SE report implementing this month that includes all discreet element flows that make up CSCs and CREs except Valley Import and Laredo: Add Interface and CSCs with DC Ties on this display with labels Consider new display of all available CSC/CRE elements –Increase frequency of wind refresh to align with DC Tie frequency of 5 minutes SCED UpDown Dashboard –Merge to be on same axis so SCED Up is positive, and SCED down is negative Wind Graph Dashboard –Create graph and corresponding report - Total and Groupings of wind output –Aggregate values Day-Ahead or 48-hr, Adjustment Period/Hourly, Actual (similar to load forecast vs actual) Sub-total grouping for actual values Both sides of W-N constraint Coastal wind The more granular the better in regional without confidentiality Consider solar (other renewable)

5. 5 TAC3/7/2011 03/31/2011 Meeting Agenda Topics Review new task list items and prioritize Status update on NPRR329, Correct Security Classification Changes for Extracts/Reports Review draft SCRs and NPRRs for high priority dashboard requirements for submission Collect market requirements for high priority new reports to draft NPRRs/OGRRs: –Daily Grid Operations Report –Monthly TDSP Load by LSE Report –DC Tie Schedules Report –Sum of HDLs/LDLs Report –Unconfirmed Trades Report –Total and Groupings of Wind Output Report

6. 6 TAC3/7/2011 For Reference: January Statistics

7. 7 MISUG3/7/2011 ERCOT Website Page Views – January 2011

8. 8 MISUG3/7/2011 External Web Services Market Transactions – January 2011

9. 9 MISUG3/7/2011 External Web Services Market Info Reports – January 2011

10. 10 MISUG3/7/2011 External Web Services Alerts/Notifications – January 2011

11. 11 MISUG3/7/2011 External Web Services Alerts/Notifications – January 2011

12. 12 MISUG3/7/2011 Market Extract & Report Postings – January 2011 Market Extract & Report Postings Run on Feb. 3, 2011 6:11:02PM Start Date:Jan 1, 2011 End Date:Jan 31, 2011

13. 13 MISUG3/7/2011 Top 10 Market Extract & Report Postings – January 2011 Top 10 Market Extract & Report Postings Run on Feb. 3, 2011 6:09:38PM Start Date:Jan 1, 2011 End Date:Jan 31, 2011

14. 14 MISUG3/7/2011 Market Extract & Report Downloads – January 2011 Market Extract & Report Downloads Run on Feb. 3, 2011 5:14:42PM Start Date:Jan 1, 2011 End Date:Jan 31, 2011

15. 15 MISUG3/7/2011 Top 10 Market Extract & Report Downloads – January 2011 Top 10 Market Extract & Report Downloads Run on Feb. 3, 2011 6:04:12PM Start Date:Jan 1, 2011 End Date:Jan 31, 2011

16. 16 TAC3/7/2011 Questions?