1. Lead from the front Texas Nodal http://nodal.ercot.com 1 Texas Nodal Registration Kick-off Meeting Matt Mereness June 6 th, 2007

2. Lead from the front Texas Nodal http://nodal.ercot.com 2 Registration Kick-Off Meeting Agenda: Roll Call Introduction and Overview of Nodal Market and EDS High-Level Summary of Registration Activities Review Timeline for Registration Activities Walk-Through of Updated Forms and Processes Questions and Answers

3. Lead from the front Texas Nodal http://nodal.ercot.com 3 Registration Kick-Off Meeting Roll Call: Please unmute phones to go through Roll Call –Please mute your phones after Roll Call –Please do not put your phone on-hold resulting in music –Open to questions at any point during the presentation

4. Lead from the front Texas Nodal http://nodal.ercot.com 4 Registration Kick-Off Meeting Agenda: Roll Call Introduction and Overview of Nodal Market and EDS High-Level Summary of Registration Activities Review Timeline for Registration Activities Walk-Through of Updated Forms and Processes Questions and Answers

5. Lead from the front Texas Nodal http://nodal.ercot.com 5 Introduction and Overview of Nodal Market and EDS Introduction and Overview of Nodal Market and Early Delivery Systems –Matt Mereness- leading effort in Registration and Qualification –Working with MPs and ERCOT groups to develop and transition Registration & Qualification activities in the nodal market ERCOT Nodal Team ERCOT Wholesale Client Services ERCOT Legal ERCOT Credit ERCOT Operations –Many materials today have been discussed in 3 forums Market Readiness Seminar (April 26) Nodal EDS 3 Workshop (May 24) Multiple TPTF Meetings

6. Lead from the front Texas Nodal http://nodal.ercot.com 6 Introduction and Overview of Nodal Market and Early Delivery Systems (EDS)

7. Lead from the front Texas Nodal http://nodal.ercot.com 7 Registration Kick-Off Meeting Agenda: Roll Call Introduction and Overview of Nodal Market and EDS High-Level Summary of Registration Activities Review Timeline for Registration Activities Walk-Through of Updated Forms and Processes Questions and Answers

8. Lead from the front Texas Nodal http://nodal.ercot.com 8 High Level Summary of Registration Activities Overview: Registration and Qualification is a series of business processes defined in Protocols Section 16 that must be completed to participate in the ERCOT market –These processes include signing agreements, completing applications, and verifying financial and systematic capabilities. In transitioning from the Zonal market to the Nodal market, some of these Registration and Qualification processes have been changed, others have not. –Registration (the paperwork) –Qualification (the testing and verification) The impact of transitional activities for YOU are dependent on how you participate in ERCOT

9. Lead from the front Texas Nodal http://nodal.ercot.com 9 High-Level Summary of Registration Activities (continued) Market Participants can register in ERCOT to participate in multiple roles: –Congestion Revenue Rights (CRR) Account Holder –Load Serving Entity (LSE) –Qualified Scheduling Entity (QSE) –Resource Entity (RE) –Transmission and/or Distribution Service Provider –Renewable Energy Credit (REC) Account Holder Nodal Impact

10. Lead from the front Texas Nodal http://nodal.ercot.com 10 High-Level Summary of Registration Activities (continued) In April, ERCOT released the Registration and Qualification Guide - Guide designed as roadmap to navigate the forms and processes - Guide has received comments and one round of TPTF review (75 commented items) - Updates Guide (v0.42) is included in the materials for this meeting

11. Lead from the front Texas Nodal http://nodal.ercot.com 11 High-Level Summary of Registration Activities (continued) View of Registration Activities- by role Note- Removed step for Designation of Counter-Party, no longer needed by ERCOT.

12. Lead from the front Texas Nodal http://nodal.ercot.com 12 High-Level Summary of Registration Activities (continued) View of more details regarding Registration documents/artifacts:

13. Lead from the front Texas Nodal http://nodal.ercot.com 13 High-Level Summary of Registration Activities (continued) At this point we’ll stop the presentation and review the Registration Steps in the Nodal Guide to Registration and Qualification v0.42.doc pages 13-17

14. Lead from the front Texas Nodal http://nodal.ercot.com 14 Registration Kick-Off Meeting Agenda: Roll Call Introduction and Overview of Nodal Market and EDS High-Level Summary of Registration Activities Review Timeline for Registration Activities Walk-Through of Updated Forms and Processes Questions and Answers

15. Lead from the front Texas Nodal http://nodal.ercot.com 15 Review Timeline for Registration Activities Calendar of Registration Documentation Refined dates to be later and align with EDS Milestones: QSE Application (new QSEs) –QSEs with Resources (case-by-case basis) –QSEs without Resources provide to ERCOT by 4/1/08 –Receive by 4/1/08, in time for 5/1/08 testing of DAM CRR Account Holder Application –Provide to ERCOT by 3/15/08 –In time for 4/15/08 testing of CRR Auction Resource Registration data (fully-certified version) –Provide to ERCOT by 9/1/07 –In time for 10/1/07 mandatory EDS3/SCED testing Attestation for Qualification of Ancillary Services –Provide to ERCOT by 9/1/07 –In support of LFC testing preparation/scheduling 1/1/08 Sign MP Standard Form Agreements –Time of BOD approval for PRR/NPRR, not EDS –Estimate BOD approval in place by 10/1/07 –Target completion 60-90 days later

16. Lead from the front Texas Nodal http://nodal.ercot.com 16 Review Timeline for Registration Activities (continued) Summary of documentation timeline: Note: For any dates falling on a weekend or holiday, the deadline is the following Business Day

17. Lead from the front Texas Nodal http://nodal.ercot.com 17 Review Timeline for Registration Activities (continued) Dates for Discussion of Forms and Market Feedback 6/6/07 - Registration Kick-Off Meeting –Review process and timelines –Review and discuss availability of draft Registration materials –Release updated Guide and Registration forms to TPTF and broader audience for comment 6/20/07 – Market Feedback due on Forms (except Resource Registration) 6/25/07 – Discuss market feedback at TPTF Meeting regarding the forms 6/28/07 – Second Registration Market Meeting –Release final forms as a “Registration Package”

18. Lead from the front Texas Nodal http://nodal.ercot.com 18 Registration Kick-Off Meeting Agenda: Roll Call Introduction and Overview of Nodal Market and EDS High-Level Summary of Registration Activities Review Timeline for Registration Activities Walk-Through of Updated Forms and Processes Questions and Answers

19. Lead from the front Texas Nodal http://nodal.ercot.com 19 Walk-through of Updated Forms and Processes Summary of how forms were updated and consolidated

20. Lead from the front Texas Nodal http://nodal.ercot.com 20 Walk-Through of Updated Forms and Processes Forms not discussed in the Guide for the following reasons: Forms with initial assessment that no change is required –QSE Acknowledgement Form –MP Agency Agreement Form –EPS Generation Load Metering Point & TSP/DSP Read Generation Registration Form –Non-Opt-In Entity Identification and Meter Point Registration Existing forms under review –Notice of Change of Information (streamline and simplify) –Application to Dynamically Schedule Load and Resources New forms needed –NOIE Load Zone Declaration –Net Metering (confirmation of mapping of Resources to EPS Meters) –Verifiable Costs

21. Lead from the front Texas Nodal http://nodal.ercot.com 21 Walk-Through of Updated Forms and Processes (continued) Processes Submission of applications and agreements will be consistent with current processes –Registration Applications include information within the document on how to submit –Standard Form Agreement to be directly circulated by ERCOT Legal Transitional (one-time-use) forms such as Attestation of Qualification of Ancillary Services and Early EDS-3 Parameter List will be posted in Nodal Readiness Center and communicated by Wholesale Client Services. Significant process change in the submission of Resource Asset Registration via Service Request (described on next few slides) All documents and forms will be made available from the Nodal Transition Readiness Center (http://nodal.ercot.com/readiness/rq/index.html ) and/or http://www.ercot.com as appropriate.http://nodal.ercot.com/readiness/rq/index.html http://www.ercot.com –Next meeting can provide more detail of how to retrieve & submit forms.

22. Lead from the front Texas Nodal http://nodal.ercot.com 22 ACCESS TO TEXAS MARKET LINK Access to TML is via User Digital Certificate issued by Market Participant’s User Security Administrator. Walk-Through of Updated Forms and Processes - How to submit RARF via online Service Request- Step 1

23. Lead from the front Texas Nodal http://nodal.ercot.com 23 Select ‘Market Activities’ and then ‘Create Service Request’ to create a service request. Walk-Through of Updated Forms and Processes - How to submit RARF via online Service Request- Step 2

24. Lead from the front Texas Nodal http://nodal.ercot.com 24 Submit using MP’s Primary or Secondary Authorized Representative in place of wet signature. Walk-Through of Updated Forms and Processes - How to submit RARF via online Service Request- Step 3

25. Lead from the front Texas Nodal http://nodal.ercot.com 25 Choose Electrical System Modification from the Request Type and Resource/Asset Registration from the Request Sub-type drop down list. Walk-Through of Updated Forms and Processes - How to submit RARF via online Service Request- Step 3 (cont’d)

26. Lead from the front Texas Nodal http://nodal.ercot.com 26 Provide a description of the service request in the long description field – for example, “Updated RARF”. Walk-Through of Updated Forms and Processes - How to submit RARF via online Service Request- Step 3 (cont’d)

27. Lead from the front Texas Nodal http://nodal.ercot.com 27 Attach a completed Resource Asset Form to the service request and Submit. Walk-Through of Updated Forms and Processes - How to submit RARF via online Service Request- Step 4

28. Lead from the front Texas Nodal http://nodal.ercot.com 28 Registration Kick-Off Meeting Agenda: Roll Call Introduction and Overview of Nodal Market and EDS High-Level Summary of Registration Activities Review Timeline for Registration Activities Walk-Through of Updated Forms and Processes Questions and Answers

29. Lead from the front Texas Nodal http://nodal.ercot.com 29 Next Steps- and Questions/Answers Between now and next Registration meeting 6/28/07 6/20/07 – Market Feedback due on Forms (except Resource Registration) –Three Applications and Attestation for Qualification of A/S –Comments welcome on Registration and Qualification Guide –ERCOT working Resource Registration as a high priority to release May be short turnaround request on market feedback 6/25/07 – Discuss market feedback at TPTF Meeting regarding the forms 6/28/07 – Second Registration Market Meeting –Release completed forms as “Registration Package” –Describe location and processes for completing forms Questions/Comments Contact info: Matt Mereness / mmereness@ercot.com / 512.248-3089mmereness@ercot.com