Timeline Options Trip Doggett TPTF 071106

1. Timeline OptionsTrip DoggettTPTF 071106 Timeline Options, TPTF Jul 11, 2006 1

2. Q3 2006 Q4 2006 Q1 2007 Q2 2007 Q3 2007 Q4 2007 Q1 2008 Q2 2008 Q3 2008 Q4 2008 Q1 2009 Q2 2009 Q3 2009 “ UI in production ” Naming Convention; CIM - compliant Model (flat file) FAT SAT Requirements, Concept Design NMMS Common model update process NMMS User Interface & business processes FAT SAT Zonal Genesys Operational Assumptions affecting the critical path Assumptions affecting the critical path EMS Requirements, Conceptual OTS OTS OTS OTS EMS EMS EMS FAT EMS SAT Design FAT FAT SAT SAT The current State Estimator will meet the necessary criteria The current State Estimator will meet the necessary criteria Vendors selection will be done by Mid Vendors selection will be done by Mid - - June June SCED Requirements, Vendors will share detailed design documents with other vendors Vendors will share detailed design documents with other vendors for interface definitions for interface definitions SCED Build SCED FAT SCED SAT Conceptual Design TDSPs TDSPs will be trained on new NMMS and there will dual entry of models will be trained on new NMMS and there will dual entry of models – – into the new NMMS and into into the new NMMS and into MMS GENESYS. ERCOT will have enough staff to handle this work GENESYS. ERCOT will have enough staff to handle this work MMS Requirements, Conceptual MMS FAT MMS SAT MMS Design, Build, Pre - FAT To allow for interface definitions, detailed design documents of To allow for interface definitions, detailed design documents of individual projects can be completed 80 hours individual projects can be completed 80 hours Design after one another. The order of completion will be NMMS after one another. The order of completion will be NMMS – – MMS/EMS/SE MMS/EMS/SE – – CRR/Outage Schedule CRR/Outage Schedule – – Commercial Systems Commercial Systems – – MIS/EDW MIS/EDW To satisfy section 17.3 of the Nodal protocols, ERCOT will deplo To satisfy section 17.3 of the Nodal protocols, ERCOT will deplo y COGNOS and SAS to provide PUCT with y COGNOS and SAS to provide PUCT with OS Requirements, Conceptual Outage Scheduler OS Build OS FAT OS SAT the ability to generate reports the ability to generate reports Design ERCOT would need 6 months of integration testing on applications ERCOT would need 6 months of integration testing on applications such as MMS, CRR and NMMS such as MMS, CRR and NMMS Areva Areva ’ ’ s s EMS will handle CIM models EMS will handle CIM models CRR Requirements, Conceptual All systems have to conform with the integrated Data Dictionary All systems have to conform with the integrated Data Dictionary CRR CRR Design, Build, Pre - FAT CRR FAT CRR SAT Design TPTF will hold review meetings as required for approval of requi TPTF will hold review meetings as required for approval of requi rements and conceptual design documents rements and conceptual design documents Credit Monitoring Registration Financial Statements Script test “ Non - binding ready Transfer Layout settlements ” CS Requirements, Conceptual Commercial Systems Design, Build, Pre - FAT CS FAT CS SAT CS FAT CS SAT CS FAT CS SAT Commercial Systems Design MIS (SCED) Design, Build, Pre - MIS FAT MIS SAT FAT MIS MIS (EMS/MMS/CRR) Design, Build, Pre - FAT MIS FAT MIS SAT MIS FAT MIS SAT MIS FAT MIS SAT EDW EDW Requirements, Conceptual Design EDW Design, Build, Pre - FAT EDW FAT EDW SAT EDW FAT EDW SAT EDW FAT EDW SAT 168 hour “ CRR Auction End of Trials Business Preliminary MP Registration Final MP MPSCED Begin MP trial market trial for Go Live ” Requirements MP Interface complete Interface Offers participation ERCOT & MP Readiness complete 10/30 Specs 12/31 Specs 3/31 MP Nodal Registration MP Financial & Operational Qualification Qualification Freeze NODAL GO LIVE Early Delivery Systems TXMACS 1.0 EDS 4 EDS 3 (TXMACS 0.3) EDS 3 Data EDS 4 TXMACS 0.4) EDS 5 (TXMACS 0.5) Live Validation MP SAT SCED; MP SCED Offers with selected MPs operations Note Over the next few weeks we will be reviewing the schedule to ensure it is based on correct assumptions. ERCOT will also ask for legal advice concerning the implementation date the PUCT established in the protocols order and whether a motion for a rehearing of that order should be filed. ERCOT estimates this review will be completed by June 30. Timeline Options, TPTF Jul 11, 2006 2

3. Integrated timeline to September May 26 Jun 2 Jun 9 Jun 16 Jun 23 Jun 30 Jul 7 Jul 14 Jul 21 Jul 28 Aug 4 Aug 11 Aug 18 Aug 25 Sep 1 Sep 8 Sep 15 CSD TPTF submission CSD TPTF approval NMMS Vendor T&M Contract Mobilize NMMS – Requirements, DSOW, Use Case, Conceptual Design Development Conceptual System Design NMMS TPTF submission TPTF approval Refinement Proposal Contract Mobilize EMS – Requirements, DSOW, Use Case, Conceptual Design Development EMS Reqts TPTF submission MMS MMS – Requirements, DSOW, Use Case Development MMS Vendor T&M Contract Mobilize Reqts TPTF submission Clarification Questions to TPTF Resourcing CRR CRR Vendor T&M Contract Requirements, Use Case, DSOW Development Reqts TPTF submission Reqts TPTF approval Reqts TPTF submission Reqts TPTF approval Registration - Requirements, Use Case Development Registration - Conceptual System Design Commercial Systems CM - Contract Mobilize Credit Monitoring - Requirements, Use Case Development FT - Assessment Financial Transfer - Requirements, Use Case Development Settlements & Billing - Requirements, Use Case Development (multiple drops) Disputes Integration Integration Strategy definition Integration Roadmap Test lab configuration Test Case template Test Script template EDW EDW – Architecture definition EDW – Roadmap definition Integrated Testing Detailed Planning Test Lab Definition Test Case Template; Procedures Early Test Cases (EMS/MMS) SAT Criteria Discuss Readiness Criteria with TPTF MP Engagement & Readiness TPTF Review/Approve Nodal PRRs TPTF – Review/Approve Business Requirements & Conceptual Systems Designs Week ending dates (Friday) Vendors selected 6/7 Overall architecture 6/7 CSD & Interface doc templates Vendors on board 6/30 Configuration Mg Plan RUP standards definition IDA Bus process validation RUP Training Delivery Vendor demos Use Cases MIS MIS Strategy definition MIS Roadmap definition MIS –UI Requirements from applications identified MIS-Posting/Reports/Extracts - Requirements Infrastructure Resourcing EMMS H/W vendor selection Existing data center rationalization Draft EDS Release Strategy EDS Release Strategy TPTF submission EDS3 Release Plan Testing Strategy ERCOT Readiness & Transition Project Staffing & startup Nodal Resourcing Template Nodal Resourcing Template – V1 ERCOT Readiness Criteria RC link to MPERP Organization Readiness Plan V1 EDS Release Strategy – V0.9 EDS Release Strategy – Socialization EDS Release Strategy – V1 EDS 3 Release Plan Testing Strategy Business Implementation plans People Transition plans As-is Org Analysis Org Vision & Principles Org Options Org Design People Strategy Capabilities Planning Timeline Options, TPTF Jul 11, 2006 3

4. Limited data - Integrated timeline to September May 26 Jun 2 Jun 9 Jun 16 Jun 23 Jun 30 Jul 7 Jul 14 Jul 21 Jul 28 Aug 4 Aug 11 Aug 18 Aug 25 Sep 1 Sep 8 Sep 15 Use Cases CSD TPTF submission CSD TPTF approval NMMS Vendor T&M Contract Mobilize NMMS – Requirements, DSOW, Use Case, Conceptual Design Development Conceptual System Design NMMS TPTF submission TPTF approval Refinement Proposal Contract Mobilize EMS – Requirements, DSOW, Use Case, Conceptual Design Development EMS Reqts TPTF submission Reqts TPTF submission Clarification Questions to TPTF MMS MMS – Requirements, DSOW, Use Case Development MMS Vendor T&M Contract Mobilize Resourcing CRR Vendor T&M Contract Requirements, Use Case, DSOW Development Reqts TPTF submission Reqts TPTF approval Reqts TPTF submission Reqts TPTF approval Registration - Requirements, Use Case Development Registration - Conceptual System Design Commercial Systems CM - Contract Mobilize Credit Monitoring - Requirements, Use Case Development FT - Assessment Financial Transfer - Requirements, Use Case Development Settlements & Billing - Requirements, Use Case Development (multiple drops) Disputes Discuss Readiness Criteria with TPTF MP Engagement & Readiness TPTF Review/Approve Nodal PRRs TPTF – Review/Approve Business Requirements & Conceptual Systems Designs Week ending dates (Friday) CRR MIS MIS Strategy definition MIS Roadmap definition MIS –UI Requirements from applications identified MIS-Posting/Reports/Extracts - Requirements EDS3 Release Plan Course Curriculum & Audience Matrix TPTF submission EDS Release Strategy TPTF submission Testing Strategy Timeline Options, TPTF Jul 11, 2006 4

5. TPTF & MP Timelines Q3 2006 Q4 2006 Q1 2007 Q2 2007 Q3 2007 Q4 2007 Q1 2008 Q2 2008 Q3 2008 Q4 2008 Q1 2009 Q2 2009 Q3 2009 - Training Communications Requirements Conceptual TPTF Detail Design Design MIS (SCED) Design, Build, Pre - MIS FAT MIS SAT FAT MIS MIS (EMS/MMS/CRR) Design, Build, Pre - FAT MIS FAT MIS SAT MIS FAT MIS SAT MIS FAT MIS SAT Statements Credit Monitoring Layout Financial Registration Non binding - ready ” Transfer settlements 168 hour End of Trials “ CRR Auction Business MPSCED market trial for Go Live ” Requirements Offers MP Readiness complete 10/30 Preliminary Final MP MP Nodal Registration MP Financial & Operational Qualification Qualification Freeze MP Interface Interface Specs 12/31 Specs 3/31 NODAL GO LIVE Early Delivery Systems TXMACS 1.0 EDS 4 EDS 3 (TXMACS 0.3) EDS 3 Data EDS 4 TXMACS 0.4) EDS 5 (TXMACS 0.5) Live Validation MP SAT SCED; MP SCED Offers with selected MPs operations Timeline Options, TPTF Jul 11, 2006 5