MARS Taskforce RMS Update May 12, 2010

Interim Settlement Solution 05/10 Status Report 2 Execution MilestonesBaseline DateRevised DateStatus Project Complete05/21/2010OnSchedule

Status Report As of May 5, 2010: Little less than 745,000 ESI IDs have been settled using 15 minute AMS data at ERCOT AEP is currently internally testing their AMS systems and communications. As of May 5, 2010: Little less than 745,000 ESI IDs have been settled using 15 minute AMS data at ERCOT AEP is currently internally testing their AMS systems and communications. 3

AMS Meter Installation Status Report Oncor: Installed: 913,482 as of Deployment Plan: 2010 – 929,000 meters 2011 – 902,000 meters 2012 – 902,000 meters Oncor: Installed: 913,482 as of Deployment Plan: 2010 – 929,000 meters 2011 – 902,000 meters 2012 – 902,000 meters 4

AMS Meter Installation Status Report CenterPoint Energy: Installed: 322,983 as of Deployment Plan: 2010 – 756,000 meters 2011 – 960,000 meters 2012 – 400,000 meters CenterPoint Energy: Installed: 322,983 as of Deployment Plan: 2010 – 756,000 meters 2011 – 960,000 meters 2012 – 400,000 meters 5

PUCT Project Advanced Metering Implementation Team (AMIT) Documentation & Meeting Schedules can be found on: Public Utility Commission of Texas Project Website : rojects/34610/34610.cfm rojects/34610/34610.cfm Advanced Metering Implementation Team (AMIT) Documentation & Meeting Schedules can be found on: Public Utility Commission of Texas Project Website : rojects/34610/34610.cfm rojects/34610/34610.cfm 6

Advanced Metering Implementation Team (AMIT) MAY 2010 *20 – Market Readiness Scorecard WebEx Staff’s proposal for a Scorecard for Smart Grid 1.0 – more information to follow Thu: 10:00-2:00 24 and 25 – Project #2 Finalization of Web Portal, Fall Release (F2F) Mon: 1:30 – 5:30 Tue: 8:30 - 4:30 Location: ERCOT, RM 206 A, {7620 Metro Center Dr., Austin, TX 78744} MAY 2010 *20 – Market Readiness Scorecard WebEx Staff’s proposal for a Scorecard for Smart Grid 1.0 – more information to follow Thu: 10:00-2:00 24 and 25 – Project #2 Finalization of Web Portal, Fall Release (F2F) Mon: 1:30 – 5:30 Tue: 8:30 - 4:30 Location: ERCOT, RM 206 A, {7620 Metro Center Dr., Austin, TX 78744} 7

Advanced Metering Implementation Team (AMIT) JUNE – Project #8 Long Term Settlements (F2F) Tue: 9:30-5:30 Wed: 8:30-4:30 Location: Public Utility Commission, CHR, 7 th Floor, {1701 N. Congress Ave, Austin, TX 78701} Critical Kick-Off for this Project - See Long Term Settlement Study results on AMIT webpage (recommended) – Project #8 Long Term Settlements (F2F) Mon: 1:30-5:30 Tue: 8:30-4:30 Location: Public Utility Commission, CHR, 7 th Floor, {1701 N. Congress Ave, Austin, TX 78701} JUNE – Project #8 Long Term Settlements (F2F) Tue: 9:30-5:30 Wed: 8:30-4:30 Location: Public Utility Commission, CHR, 7 th Floor, {1701 N. Congress Ave, Austin, TX 78701} Critical Kick-Off for this Project - See Long Term Settlement Study results on AMIT webpage (recommended) – Project #8 Long Term Settlements (F2F) Mon: 1:30-5:30 Tue: 8:30-4:30 Location: Public Utility Commission, CHR, 7 th Floor, {1701 N. Congress Ave, Austin, TX 78701} 8

Advanced Metering Implementation Team (AMIT) JULY –Project 5 - Retail Market Interface (F2F) Wed: 8:30-4:30 Location: Public Utility Commission, CHR, 7 th Floor, {1701 N. Congress Ave, Austin, TX 78701} WebEx: check AMIT webpage for instructions: – Project 5 – Retail Market Interface (F2F) Tue: 9:30-5:30 Wed: 8:30-4:30 Location: Public Utility Commission, CHR, 7 th Floor, {1701 N. Congress Ave, Austin, TX 78701} WebEx: check AMIT webpage for instructions: JULY –Project 5 - Retail Market Interface (F2F) Wed: 8:30-4:30 Location: Public Utility Commission, CHR, 7 th Floor, {1701 N. Congress Ave, Austin, TX 78701} WebEx: check AMIT webpage for instructions: – Project 5 – Retail Market Interface (F2F) Tue: 9:30-5:30 Wed: 8:30-4:30 Location: Public Utility Commission, CHR, 7 th Floor, {1701 N. Congress Ave, Austin, TX 78701} WebEx: check AMIT webpage for instructions: 9

Questions? 10