1 TX SET Update to RMS August 13, 2008

2 Issues Under Review I075 – CSA-By Pass flag is being used by CRs when they do not have a CSA established I075 – CSA-By Pass flag is being used by CRs when they do not have a CSA established –Language in the 814_24 Move-out guide states: “The owner of CSA could use the code to de-energize a premise (Only if the CSA REP is also the REP of Record at the time of the Move-Out effective date).”

Issue I075 (continued) 3 03/01/08 –04/01/08 –04/29/08 –05/27/08 –06/21/08 – 3/20/20084/20/20085/18/20086/15/20087/10/2008 MVOs w/ flag with different CSA CR

Issue I075 (continued) Texas SET members decided that if at our August 19 th /20 th meeting there is either no change in the data nor any clear indication of this being corrected, and the timeline for the correction, TX SET will escalate the issue to RMS. 4

RMGRR Activity RMGRR063 – “Mass Transition Revisions Resulting from June 2008 Lessons Learned Workshop” – –Urgent Timeline RMGRR064 – “Correcting Retail Market Guide for Leapfrog processes to synch up with ERCOT’s system logic” – –Urgent Timeline 5

RMGRR Activity RMGRR0XX – Disconnect and Reconnect for Non-Payment Updates and Corrections – –Normal Timeline RMGRR0XX – Safety-Net Move-In Process Updates – –Normal Timeline 6

RMGRR Activity RMGRR0XX – Updates and Corrections to the Transaction Timing Matrix, Formal Dispute Process and Estimated Meter Readings – –Normal Timeline RMGRR0XX – Out-Flow Power from Distributed Renewable Generation Facilities – –Normal Timeline 7

8 Other Work in Progress Implementation Guide ExamplesImplementation Guide Examples –Update Transaction Examples and Prepare to Pull Examples Out of I.G.s at Next Release Review/Clean-up of RMG Section 7 to ensure consistency with TX SET v3.0 Review/Clean-up of RMG Section 7 to ensure consistency with TX SET v3.0 Monitoring Advanced Metering Project for TX SET Changes Monitoring Advanced Metering Project for TX SET Changes

2008 Goals Analyze Issues as they are presented to TX SET to determine if there is a Market need for another TX SET Release based on Market issues and/or approved PUCT Rule requirements –No TX SET Release Planned for 2008 or 2009 –Looking at a 2010 Release driven by Advanced Metering 9

2008 Goals Evaluate upcoming Rulemakings and determine their Transactional and Market impacts to current processes: – –Automated Meter Systems - Ongoing – –Distributed Generation - Ongoing – –Demand Response – Ongoing as part of AMS 10

2008 Goals Add Change Control management functionality to ERCOT.com webpage similar to Texas SET’s Issues page on the same website. –Requirements drafted –Changes in development by ERCOT 11

2008 Goals Improve usability of transaction examples –Ongoing Continue to Update Protocols and Retail Market Guide when and where necessary –Ongoing Continue to maintain and update the Stacking documentation –Ongoing 12

2008 Goals Continue to be involved with all market participants and market meetings to provide assistance and TX SET expertise where needed Ongoing Ongoing Always encourage all market participants to attend and participate in TX SET meetings and workshops Ongoing Ongoing 13

14 The next TX SET meeting will be August 19th & 20th at The ERCOT MET Center Any questions?