1. ERCOT Nodal Readiness Plan Trip Doggett TAC Special Meeting September 7, 2005

2. Outline Protocol Clarification Processes Touched Project Organization Procurement Process Refine Timeline Refine Cost Estimate

3. ERCOT reviewing Nodal Protocols to identify any areas requiring clarification prior to requirements gathering Protocol Clarification

4. Processes Touched

5. Project Organization Dedicated Implementation Team Business and IT co-leaders Co-locate team where possible Anticipate clarification of Governance Model to define point of interaction with Market Participants

6. Procurement Process Internal vs. External Development Vendor Identification Procurement Process Consider MP Review and Comments in the process

7. Refine Timeline Currently refining timeline to incorporate requirements from TNT Transition Plan –Test sequence –Market Readiness Criteria –6 months State Estimator load estimates –6 months of posted LMPs –168 Hour Test Additional refinement will occur after contracts are awarded

8. Refine Cost Estimate Currently refining cost estimate to incorporate requirements from TNT Transition Plan

9. Questions