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Texas Nodal Critical Path Update TPTF Date xxx

This update provides an overview of the complexity and progress of the critical path for the Texas Nodal project, including integration of multiple project software drops, vendor mobilization, and alignment with program and business objectives.

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Texas Nodal Critical Path Update TPTF Date xxx

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  1. Texas NodalCritical Path UpdateTPTFDate xxx http://nodal.ercot.com 1

  2. The critical path – overview of complexity NMMS1 NMMS2 NMMSX EMS1 EMS2 EMSX MMS1 MMS2 MMSX Multiple project software drops... >50 Drops …integrated into builds... Integration 1 Integration 2 Integration X ~33 Builds Build 1 Build 2 Build X …for testing and release... I-Test 1 I-Test 2 Release 1 7 Releases …into Early Delivery Systems for market trials prior to Go LIve EDS 1 EDS 2 4 EDS http://nodal.ercot.com 2

  3. Initial emphasis – individual project mobilization & requirements Protocols & NPRR Independent Project Focus Schedule Confidence EMS Functionality Critical Path Confidence MMS Functionality Critical Path Status RED Project scope, requirements, development estimates (budget) S & B Functionality Program Activities • Define Requirements • Conceptual Design • Functional Scope • Protocol Interpretation and Mapping • Vendor(s) Identification and Delivery Estimates • Internal Development Team(s) Delivery Estimates Add. COMS Functionality CRR Functionality Other Nodal Project Functionality Common Projects (IDA, IRT, INF, EIP) http://nodal.ercot.com 3

  4. Last Few Months – Vendor Mobilization and Application Focus Vendor Delivery Capabilities Project Delivery Focus Schedule Confidence EMS1 EMS2 EMSX Critical Path Confidence MMS1 MMS2 MMSX Critical Path Status RED Project software drops, feasible delivery dates, vendor SOWs S&B1 S&B2 S&BX Program Activities • Req. Finalization & Conceptual Design • Define Common Terminology & Delivery Milestones • Define Common Goals Across Projects • Identify Project Interdependencies • Organize into Releases • Define Assumptions • Unconstrained End Date COMS1 COMS2 COMSX CRR 1 Build1 Build2 BuildX Common Projects (IDA, IRT, INF, EIP) http://nodal.ercot.com 4

  5. Current State – Cross Project Design and Integration Alignment Nodal Protocols Transition Plan Guidance Program Delivery Focus Schedule Confidence EDS 1 (Rel 1) EDS 1 (Rel 2) Critical Path Confidence Proj 1 Proj 2 Proj 1 Proj 2 Proj 3 Proj x Proj 3 Proj x Integration builds, EDS release scope, integrated schedules & trade-offs Critical Path Status AMBER EDS 2 (Rel 3) EDS 2 (Rel 4) Proj 1 Proj 2 Proj 1 Proj 2 Program Activities • Conceptual & Detailed Design • Cross Project Alignment • EDS Deliveries Identified • Key Design Issues Identified • Key Program Risks • Identify Project Interdependencies • Identify Releases • Organize Pieces Proj 3 Proj x Proj 3 Proj x EDS 3 (Rel 5) EDS 3 (Rel 6) Proj 1 Proj 2 Proj 1 Proj 2 Proj 3 Proj x Proj 3 Proj x EDS 4 (Rel 7) Proj 1 Proj 2 Proj 3 Proj x Common Projects (IDA, IRT, INF, EIP) http://nodal.ercot.com 5

  6. Future State – Program and Business Delivery Alignment Nodal Protocols Transition Plan Guidance Business Capability Focus Schedule Confidence EDS 1 (Rel 1) EDS 1 (Rel 2) Critical Path Confidence Integrated Build Integrated Build Committed control milestones, finalized vendor SOWs, Business Transition Training Transition Training Transition Critical Path Status GREEN EDS 2 (Rel 3) EDS 2 (Rel 4) Integrated Build Integrated Build Program Activities • NPRR Backlog Cleanup • Rigorous Scope Change Control • Design Issues Resolved • Confirm EDS strategy with TPTF, including potential exceptions to Transition Plan • Build delivery confidence (early drops) • Rigorous critical path and dependency management • Go-Live risk review Training Transition Training Transition EDS 3 (Rel 5) EDS 3 (Rel 6) Integrated Build Integrated Build Training Transition Training Transition EDS 4 (Rel 7) Integrated Build Training Transition Common Projects (IDA, IRT, INF, EIP) http://nodal.ercot.com 6

  7. Meeting the 12/1/2008 target, needs thrust on multiple areas Nodal Program • Technical Design Leadership and Alignment • Vendor Delivery Management • Application Integration External Support • Clearing NPRR Backlog • TPTF Review / Approval Turn Around • Transition Plan Clarification http://nodal.ercot.com 7

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