1. Regional Operations Review Group Activities Status Report to TAC April 8, 2004

2. © ERCOT 20044/8/04 March 5, 2004 Kickoff Meeting Attendees put on Operations Review Group mailing list ERCOT Presentations on: ERCOT Operations organization Location/description of constraints Information available to Market Participants (real time info, models used) Coming changes and improvements to operating systems Input received from Market Participants Need more feed back from Transmission Operators on congestion seen by ERCOT Operations ERCOT needs to do after the fact analysis of operating actions Specific questions on constraints

3. © ERCOT 20044/8/04 March 5, 2004 Kickoff Meeting (cont.) Future meetings needed on: DFW area congestion Remedial Action Plans CSC limit calculation and operational implementation Outage scheduling issues Planning and Operations coordination (contingencies used, ratings, benchmarking of models)

4. © ERCOT 20044/8/04 Subsequent Meetings Two conference calls on March 24 and 31 on wind issues Construction updates on construction in McCamey area Inclusion of updates in operations model and limit calculation April 2, 2004 DFW Meeting Joint meeting with North Regional Planning Group Discussed specific RAPs in DFW area for summer 2004 Discussed coming improvements in system that should reduce congestion Discussed TXU proposal to expedite some Oncor projects scheduled for 2006/07 to 2005

5. © ERCOT 20044/8/04 Future Meetings April 12, 2004 McCamey Area Technical Conference Joint meeting with West Regional Planning Group Discuss daily wind limit calculation process Discuss area modeling issues May 12, 2004 (tentative) – TCR/CSC Issues TCR calculation process – Planning CSC operating limit calculation and activation – Operations To be determined Outage scheduling issues Coordination of Operations and Planning models