1. Profiling Working Group June 15, 20051 PWG Update Report By Ernie Podraza of Reliant Energy ERCOT PWG Chair for RMS Meeting June 15, 2005

2. Profiling Working Group June 15, 20052 1)All TDSPs are complete as of June 9, 2005. Great Job TDSPs!!!!!!!!!!! Annual Validation 2005 Algorithm Changes

3. Profiling Working Group June 15, 20053 Action item copied from March 23, 2005 PWG meeting minutes TDSPs shall do one of the following by mid June: a) TDSPs shall utilize 727 extracts to compare the TDSP’s Profile ID, and status for each ESIID and provide a list of ESIIDs that are out of sync. The report shall contain ESIID, TDSP Profile ID, ERCOT Profile ID, TDSP Status code, ERCOT Status Code. b) TDSP shall create a file containing a complete list of ESIIDs, TDSP Profile ID, and TDSP Status codes for their population. The TDSP shall coordinate a snapshot day with ERCOT staff prior to creating the file. STATUS One TDSP complete, One TDSP has yet to communicated with ERCOT Staff, and all others are working on the action item. Annual Validation 2005 Action Item

4. Profiling Working Group June 15, 20054 11.4.1 Validation of Profile Type Assignment for RES and BUS Profile Groups 1. TDSPs shall utilize the historical usage and demand data in their databases to derive Usage Month values for each Active and De-Energized ESI ID for the time period specified in the current Profile Decision Tree. 2. TDSPs shall determine the Profile Segment for each Active and De- Energized ESI ID in their service territory, based on the current Profile Decision Tree. TDSPs shall provide a report to ERCOT listing the ESI IDs, current Profile ID, and the recommended Profile ID for those ESI IDs that require a change in Profile ID assignment. An electronic copy of this report shall be delivered to ERCOT no later than June 30. Annual Validation 2005 Begins