Lead from the front Texas Nodal 1 Texas Nodal Market Implementation Program MIS Web Portal Business Requirements Review Current Status Nodal Training Systems Current Status Upcoming Schedule September 28, 2006

Lead from the front Texas Nodal 2 Highlights -- Business Requirements Document Overview Scope: Objectives, Components, Assumptions Structure: Nodal protocols, current protocols, Other binding documents Supplementary Requirements Outstanding Issues or Assumptions Post Unaccounted for Energy (UFE) Analysis PR , PR Post available information so QSE can estimate/verify bills PR 12.3(c) Same requirements for webpage functionality for Nodal as in Zonal Sec. 21 Deadline for comments: October 4 Request for approval: week of October 9

Lead from the front Texas Nodal 3 Format of the Business Requirements Document Summary of Source Protocols Unique format of the document, added: * Notes – your notes from the Matrix * Posting Frequency * Data Classification (public, secure, certified)

Lead from the front Texas Nodal 4 MIS – Status Review The MATRIX Subgroup continuing to update Found some requirements untraceable to Protocols Access the entire matrix on Nodal Protocols website Access the subset in question on the TPTF agenda If we don’t hear back by 10/15, will delete from the Matrix

Lead from the front Texas Nodal 5 MIS – Status Review Other in-process activities Beginning work on wire frames, expect review in mid-October Planning to review with COPS, QSE managers also On-going TML/MIS Gap Analysis Tying posted content to contributing Nodal systems Defining initial strawman role structure / definitions, expect review end of October Vendor coming on-board 10/1 (didn’t make the 19 th !)

Lead from the front Texas Nodal 6 Training Status Review - Milestones Initial course curriculum to TPTF - June 26, 2006 Complete Begin face-to-face delivery– 2nd Quarter Complete Identify key milestones – Aug 15, Complete Training Charter signed off – Aug 15, 2006 – Complete Protocol to course Mapping -- Sept 1, Complete Attendance Matrix – Oct 1, 2006 – Subject to TPTF approval Determine Test-out process Nov 1, 2006 Implement LMS solution – December, 2006 Implement on-line training (Nodal 101) – Jan, 2007 WebEX (Nodal 101) – Jan, 2007

Lead from the front Texas Nodal 7 Update for ERCOT Nodal 101 – Test Results Attendance (thru 9/21) –206 attendees –135 took test ( 65% of attendees) –115 passed ( 85% of those who took test) Recent course specifics –9/7 85% Attendees took test –9/21 86% Attendees took test

Lead from the front Texas Nodal 8 Course Curriculum – Approvals Requested Modify Curriculum document to remove readiness requirements. Addition of description of ERCOT defined courses required for training readiness – information provided by the Internal Readiness Team (IRT) Combined previous comments Summary of Changes from prior comments:

Lead from the front Texas Nodal 9 Training Readiness – Approval Requested Inclusion of ERCOT as a specific course attendee Addition of reference to ERCOT defined courses required for training readiness – information provided by the Internal Readiness Team (IRT) Modification of title of Market Participant Readiness document as Market Participant Training Readiness document (ERCOT is by definition a Market Participant) Combination of previous comments Summary of Changes from prior comments:

Lead from the front Texas Nodal 10 Upcoming Course Schedule - Available Courses –ERCOT 101: The Basics –October 11— Taylor –October 17 — Garland - serving the Dallas / Fort Worth Area –October 18 — Garland - serving the Dallas / Fort Worth Area –October 19 — Garland - serving the Dallas / Fort Worth Area –October 25 — Austin –October 27 — Austin –November 7 — Austin –November 29 — Taylor –December 4 — Austin All courses are subject to rescheduling based on adequate course enrollment. The Economics of LMP October 20 — Austin November 13 — Taylor December 4 — Taylor

Lead from the front Texas Nodal 11 Upcoming Course Schedule -- in Development Course Title Proposed Date ERCOT Nodal 101: The BasicsAvailable Economics of LMPAvailable Transition to Nodal Markets & Start-up TestingApril, 2007 NOIE QSE OperationsMay, 2007 Load Serving Entity 201May, 2007 Basic Training Program QSEJune, 2007 Market Settlements 301Sep, 2007 CRRs, PCRRs, and Supply HedgingNov, 2007 Transmission 101Nov, 2007 Network Model ManagementNov, 2007 Generation 101Dec, 2007 Generation 201Dec, 2007 Generation 301Dec, 2007 MIS 101: Market Information SystemsDec, 2007 ERCOT 101 for Wind GenerationJan, 2008