1. MARS Taskforce RMS Update July 20, 2011

2. Initial Settlement As of July 4, 2011 Operating Date: June 27, 2011 AMC ESI ID Totals: 3,134,705 AMDG ESI ID Totals: 601 Estimated Percentage: 0.6316% As of July 4, 2011 Operating Date: June 27, 2011 AMC ESI ID Totals: 3,134,705 AMDG ESI ID Totals: 601 Estimated Percentage: 0.6316% 2

3. Final Settlement As of July 4, 2011 Operating Date: May 9, 2011 AMC ESI ID Totals: 2,835,866 AMDG ESI ID Totals: 534 Estimated Percentage: 0.0752% As of July 4, 2011 Operating Date: May 9, 2011 AMC ESI ID Totals: 2,835,866 AMDG ESI ID Totals: 534 Estimated Percentage: 0.0752% 3

4. True-Up Settlement As of July 4, 2011 Operating Date: January 8, 2011 AMC ESI ID Totals: 2,222,432 AMDG ESI ID Totals: 367 Estimated Percentage: 0.0402% As of July 4, 2011 Operating Date: January 8, 2011 AMC ESI ID Totals: 2,222,432 AMDG ESI ID Totals: 367 Estimated Percentage: 0.0402% 4

5. AMS Meter Installation Status Report Oncor (approximately): Installed: 1,861,566 as of 06.30.2011 Deployment Plan: 2010 – 929,000 meters 2011 – 902,000 meters 2012 – 902,000 meters Oncor (approximately): Installed: 1,861,566 as of 06.30.2011 Deployment Plan: 2010 – 929,000 meters 2011 – 902,000 meters 2012 – 902,000 meters 5

6. AMS Meter Installation Status Report CNP (approximately): Installed: 1,479,554 as of 06.30.2011 Deployment Plan, includes projected growth: 2010 – 756,684 meters 2011 – 960,327 meters 2012 – 373,423 meters CNP (approximately): Installed: 1,479,554 as of 06.30.2011 Deployment Plan, includes projected growth: 2010 – 756,684 meters 2011 – 960,327 meters 2012 – 373,423 meters 6

7. AMS Meter Installation Status Report AEP (approximately): Installed: 314,866 as of 06.30.2011 Deployment Plan schedule: 2010 – 188,212 meters 2011 – 251,571 meters 2012 – 279,329 meters 2013 – 278,280 meters AEP (approximately): Installed: 314,866 as of 06.30.2011 Deployment Plan schedule: 2010 – 188,212 meters 2011 – 251,571 meters 2012 – 279,329 meters 2013 – 278,280 meters 7

8. Market AMS Installed Totals 8

9. PUCT Project 34610 Advanced Metering Implementation Team (AMIT) Documentation & Meeting Schedules can be found on: Public Utility Commission of Texas Project 34610 NEW Webpage : http://www.puc.state.tx.us/industry/projec ts/electric/34610/34610.aspx http://www.puc.state.tx.us/industry/projec ts/electric/34610/34610.aspx Advanced Metering Implementation Team (AMIT) Documentation & Meeting Schedules can be found on: Public Utility Commission of Texas Project 34610 NEW Webpage : http://www.puc.state.tx.us/industry/projec ts/electric/34610/34610.aspx http://www.puc.state.tx.us/industry/projec ts/electric/34610/34610.aspx 9

10. AMIT’s Working Group Schedule and Update Registration, Administration & Access Working Group (RAAWG) http://www.puc.state.tx.us/industry/projects/ele ctric/34610/RAAWGMtg071111/RAAWG_Decision -Matrix_071111.pdf http://www.puc.state.tx.us/industry/projects/ele ctric/34610/RAAWGMtg071111/RAAWG_Decision -Matrix_071111.pdf Operations and Maintenance Working Group (OMWG) Every other Wednesday from 1-3 pm Scheduled through August 24, 2011 Projects and Strategy Working Group (PSWG) Every other Friday at 10:45 AM Registration, Administration & Access Working Group (RAAWG) http://www.puc.state.tx.us/industry/projects/ele ctric/34610/RAAWGMtg071111/RAAWG_Decision -Matrix_071111.pdf http://www.puc.state.tx.us/industry/projects/ele ctric/34610/RAAWGMtg071111/RAAWG_Decision -Matrix_071111.pdf Operations and Maintenance Working Group (OMWG) Every other Wednesday from 1-3 pm Scheduled through August 24, 2011 Projects and Strategy Working Group (PSWG) Every other Friday at 10:45 AM 10

11. AMIT Working Group News Projects and Strategy Working Group (PSWG) PSWG has developed 6 separate business cases for additional functionality for Smart Meter Texas. PSWG will need feedback from the market on these concepts before they can take it to the technical use case phase. Provide a yes/no response if you are comfortable with each use case moving forward from the business to the technical phase, along with any questions, concerns, or comments regarding the use case. Please send responses for each use case individually (i.e. six separate emails) to pswg@smartmetertexas.com no later than 5:00 PM on July 18, 2011.pswg@smartmetertexas.com This is not a vote – just a poll to make sure the Market is headed in the right direction before development starts with the technical teams. Projects and Strategy Working Group (PSWG) PSWG has developed 6 separate business cases for additional functionality for Smart Meter Texas. PSWG will need feedback from the market on these concepts before they can take it to the technical use case phase. Provide a yes/no response if you are comfortable with each use case moving forward from the business to the technical phase, along with any questions, concerns, or comments regarding the use case. Please send responses for each use case individually (i.e. six separate emails) to pswg@smartmetertexas.com no later than 5:00 PM on July 18, 2011.pswg@smartmetertexas.com This is not a vote – just a poll to make sure the Market is headed in the right direction before development starts with the technical teams. 11

12. Advanced Metering Implementation Team (AMIT) JULY 2011 25 th (F2F) Mon: 1:00 PM -5:30 PM Third Party Access Planning Meeting - all AMIT Working Groups Location: ERCOT Met Center Conference Room 206 B 26th (F2F) Tues: 9:30 AM – 5:30 PM AMIT Steering Committee meeting Location: ERCOT Met Center Conference Room 206 JULY 2011 25 th (F2F) Mon: 1:00 PM -5:30 PM Third Party Access Planning Meeting - all AMIT Working Groups Location: ERCOT Met Center Conference Room 206 B 26th (F2F) Tues: 9:30 AM – 5:30 PM AMIT Steering Committee meeting Location: ERCOT Met Center Conference Room 206 12

13. Advanced Metering Implementation Team (AMIT) AUGUST 2011 23rd (F2F) Tues: 9:30 AM – 5:30 PM AMIT Steering Committee meeting Location: ERCOT Met Center Conference Room 206 SEPTEMBER 2011 27th (F2F) Tues: 9:30 AM – 5:30 PM AMIT Steering Committee meeting Location: ERCOT Met Center Conference Room 206 AUGUST 2011 23rd (F2F) Tues: 9:30 AM – 5:30 PM AMIT Steering Committee meeting Location: ERCOT Met Center Conference Room 206 SEPTEMBER 2011 27th (F2F) Tues: 9:30 AM – 5:30 PM AMIT Steering Committee meeting Location: ERCOT Met Center Conference Room 206 13

14. Questions? 14