1. © Property of ERCOT 2005 1/8/20061 TPTF ERCOT Nodal Organization Chart March 6, 2006

2. © Property of ERCOT 2005 1/8/20062 High Level Market Redesign Organizational Structure

3. © Property of ERCOT 2005 1/8/20063 Nodal Organization Chart  ERCOT cross functional teams will be responsible for all Nodal projects and deliverables  ERCOT Resource managers will provide Nodal staff, as requested from Nodal Directors, either with existing ERCOT FTEs or contractors  Most Leads have team members behind them  Additional staff will be added/clarified as Nodal Mobilization continues.

4. © Property of ERCOT 2005 1/8/20064 Nodal Program Organization Chart

5. © Property of ERCOT 2005 1/8/20065 Nodal Business Organization Chart

6. © Property of ERCOT 2005 1/8/20066 Business Resource Managers NameArea Steven MyersOperations Support Manager Joel MickeyMarket Operations Manager Ken DonohooTransmission Services Manager Dan WoodfinRegional Planning Manager Kenneth RagsdaleSettlements and Billing Manager Adam MartinezERCOT & Market Training Kristi HobbsMarket Rules Manager Ted HailuWholesale Client Services Manager Roy McCoyCongestion and Renewable Credit Manager Glen WingerdMarket Operations Testing Manager Paula FeuerbacherRequirements Manager

7. © Property of ERCOT 2005 1/8/20067 Nodal IT Organization Chart

8. © Property of ERCOT 2005 1/8/20068 IT Resource Managers NameArea Diran ObadinaEMMS Development Carlos Gonzales-PerezEMMS Production Support David FarleyCommercial Services Ray ChaseEnterprise Information Services Mohan YeggoniDatabase Administration Todd BaxterSystem Engineering and Administration Cagle LoweNetwork Michael StanleyEnterprise Integration Mike SolariStorage Bill GranthamWeb and Data Services