Recommendation of Texas Test Plan Team to RMS August 11, 2003

TTPT is proceeding with two Test Flights for 2003 Flight 0703 for New Market Participants testing under TX SET Version 1.5 First test transactions began to flow on July 14, 2003 Flight is now in Frame 3 as Karen Bergman will report Flight Scheduled to End September 5, 2003 Flight 1003 for Existing and New Market Participants testing under TX SET Version 1.6 including transaction changes from COMET and Guideline compliance ideas from the 810/820 Working Group Deadline to receive Requirements from V1.6 Coord. Team 7/15/03 Flight began pre-test activities on July 23, 2003 Scripts to be delivered August 15, 2003 Market Orientation for Test Flight 1003 will be August 26, 2003 Deadline to Join Flight September 4, 2003 First transactions to flow October 13, 2003 Flight Scheduled to End December 5, 2003.

Details of Flight 1003 Test Tracks The tracks for this flight will be as follows: Existing - Scripts for all MPs testing V1.6 functionality - required for all Existing and New CR's. - Note CSA SB135 is only required for CSA CR's. Existing MCTDSP - Scripts for all MPs in Muni/coop territories testing V1.6 functionality New - Required for any New CR entering the TX Market or a new Territory MC TDSP - Required for any New CR entering Muni/coop territory CSA - Scripts required for CR's opting into CSA functionality POLR/AREP - Scripts required for a new AREP Competitive Metering - Scripts required for CR's that will offer Competitive Metering functionality. Note the EDI transactions in CM101 will be required by all Existing and New CR's. TDSP - Scripts required for any New TDSP's.

Flight 1003 Scripts List - Page 1

Flight 1003 Scripts List - Page 2

Flight 1003 Scripts List - Page 3

Approved Flight Schedules for 2003

Proposed Resolution for Test Flights for 2003 RMS approves the revised Market Testing timelines for Flight 1003 as adopted by the TTPT. RMS further directs that any material changes to these timelines or changes in scope of the test flights must be approved by RMS and TAC.

Flight V1.5 Report of Texas Test Plan Team to RMS 2003 Market Test Time Line as revised 8/14/03 Successful Test Flight Completion April 17 Planned production roll out for Version 1.6 and COMET transaction changes Flight V1.5 Flight 0703 testing 1.5 for New Participants Flight 0703 4/8 - 9/5 G I S B Flight 10/03 7/23 - 12/5 Jan Feb Mar Apr May Jun July Aug Sept Oct Nov Dec Market is Here 7/11/03 Flight Kickoff 10/10/03 Flight Kickoff Successful GISB Conversion Flight 1003 testing 1.6 for Existing and New Participants, COMET changes and changes from the 810/820 Working Group Successful Version 1.5 Production Roll Out April 10 - 13

All Market Participants 2004 Market Test Time Line as proposed 8/14/03 1/12/04 Flight Kickoff August 1, 2004 RMS Approved production roll out date for Version 2.0, including MIMO and Stacking transaction changes 2/20/04 Flight Ends 6 Wk. Test 3/15/04 Flight Kickoff Flight V1.6-0104 New CRs 4/23/04 Flight Ends 6 Wk. Test Flight Notice 1/5/04 5/17/04 Flight Kickoff 7/23/04 Flight Ends Flight V1.6-0304 New CRs 10 Wk. Test Flight V2.0-0504 All Market Participants 9/13/04 Flight Kickoff Flight Notice 3/5/04 11/19/04 Flight Ends 10 Wk. Test Flight Notice 7/5/04 Flight V2.0-0904 New CRs 2004 2003 Jan Feb Mar Apr May Jun July Aug Sept Oct Nov Dec

Issues of Concern for Version 1.6 The Team is struggling with these issues: The market is still awaiting requirements on the manner in which the credit will appear in the 810_02. It may appear in the account loop, which is passed on to the end use customers. Another method was to provide the credit in the business to business loop which stops at the CRs. The TTPT adopted scripts with alternative expected results depending upon which method is approved The market understands that for competitive meter services it is recommended in the substantive rule that the customer/meter owner requesting all competitive metering services will be expected to contact the TDSP directly. The billing and manual process scripts are undergoing last minute revisions as all were written anticipating CR/TDSP communication only. The market understands that Price to Beat customers cannot receive credit for competitive meter ownership in an affiliated TDSP/Rep's territory, however those CR's example ABC operating in XYZ's or XYZ in ABC's territory may receive this credit. Scripts are being considered that will include P2B and non-P2B scenarios.

Report of Texas Test Plan Team to RMS Questions ?