1. August 25, 2008 TPTF Nodal Status Report: Projects Status Updates Adam Martinez

2. 2 2 Nodal Status Report - Projects UpdatesAugust 25, 2008 Agenda NMMS EMS MMS CRR COMS EIP (Integration) INT (Testing)

3. 3 3 Nodal Status Report - Projects UpdatesAugust 25, 2008 NMMS Project Update

4. 4 4 Nodal Status Report - Projects UpdatesAugust 25, 2008 Project Update – NMMS Software Releases Finishing NMMS 4 FAT Supporting AREVA On-Site Work Working with Siemens to Create Data Validation Rules Working with EDS to determine System Planning Market Participants’ training and market trial activities

5. 5 5 Nodal Status Report - Projects UpdatesAugust 25, 2008 Project Update – NMMS (cont.) Remaining NMMS Functionality

6. 6 6 Nodal Status Report - Projects UpdatesAugust 25, 2008 EMS Project Update

7. 7 7 Nodal Status Report - Projects UpdatesAugust 25, 2008 Project Update – EMS Recent FAT Completion and Release to ITEST Transient Stability/Voltage Stability Analysis Tools (TSAT/VSAT) EMS has completed all EMS functionality testing and released the functionality to I-Test/EDS except: Currently in FAT testing (rescheduled completion to the end of this week) –Outage Evaluation (OE) – Testing at ERCOT (Post-FAT bug fix phase) Two high severity SPRs remain open. Expect fixes and retest this week. Once fixed, exit FAT –Voltage Support (VSS) – Testing at ERCOT (Post FAT bug fix phase) One high SPR is being fixed and once tested, then exit FAT –Alerts and Notification, MMS-EMS Interface and Alarm Display – Testing at ERCOT (Post FAT bug fix phase) –Defect fixes (over 70 being tested, over 90% acceptance level)

8. 8 8 Nodal Status Report - Projects UpdatesAugust 25, 2008 Project Update – EMS (cont.) In progress or planned –EMS CIM Importer – testing at ERCOT Iterating with NMMS to get fidelity in the data model to complete validation and run the EMS applications AREVA technical resources on site at ERCOT starting Aug. 18 CIM XML has been consumed and all seven Habitat databases have been produced. Validation success is improving as the fidelity of the data improves –Changes related to SIG papers – in analysis, Private Use Network paper being reviewed by TPTF this week –Remaining interfaces (e.g., reports, replication) and defects are planned or in progress

9. 9 9 Nodal Status Report - Projects UpdatesAugust 25, 2008 MMS Project Update

10. 10 Nodal Status Report - Projects UpdatesAugust 25, 2008 Project Update – MMS MMS (ABB) Software Releases –MMS4 includes baseline 0, 1 & 2 software (e.g., DAM, RUC, SASM, CCT, SCED) Patch 2 is scheduled to complete all SPR retesting on 22Aug08 –First FAT to use a CIM XML test data set; data for all MMS-required extensions is not included in this CIM XML test data set –As reported at the May 23 TPTF meeting, two previously deferred items that the TPTF requested be delivered to ERCOT by ABB prior to go-live were added back to the MMS schedule and planned for delivery to ERCOT by ABB on June 30. Both items were delivered on time and are currently being tested in MMS4 patch 2 FAT »Item #1: Dynamically scheduled resource incremental and decremental energy offer curves updates »Item #2: Co-optimizing energy and AS for self-committed resources in DAM NOTE: there was a TPTF subgroup that defined the new requirements; the TPTF approved 2 of the 3 proposed requirements for delivery NOTE: The two S&B info only calcs and the resource parameter API were originally deferred but have been delivered by ABB and tested by the MMS team. There is still EIP work to complete the resource parameter API. –Loading of MMS4 patch 2 into iTest complete

11. 11 Nodal Status Report - Projects UpdatesAugust 25, 2008 Project Update – MMS (cont.) MMS (ABB) Software Releases Patch 3 delivered by ABB on 25Jul08 –uses same CIM XML test data set as patch 2 –loaded into MMS DEV starting on 28Jul08 –MMS DEV smoke testing completed 15Aug08 –incrementally loading patch 3 into MMS FAT with a target completion of 29Aug08 for loading and smoke testing Patch 4 scheduled for delivery into MMS DEV in late August –will use same CIM XML test data set as patch 2 & 3 –focused mainly on outstanding defects Patch 5 has been added to allow ABB to continue developing & testing on the most recent version of the CIM schema and corresponding CIM XML test data file that ERCOT can provide –tentatively scheduled for delivery into MMS DEV in late September –patch contents will be agreed to with ABB by 29Aug08; targeting S&B defects, interface updates and additional workflow development & testing with the most recent CIM schema & data set –CIM XML test data set version will be determined based on availability and accuracy of CIM XML test data sets received from NMMS; currently working with NMMS to move to v1.20

12. 12 Nodal Status Report - Projects UpdatesAugust 25, 2008 Project Update – MMS (cont.) MMS (ABB) Software Releases –MMS5 is the last scheduled MMS software release This release will be comprised of the following: –CIM XML import processing and testing end-to-end (defined in last bullet in this section) –Bug fixes identified to ABB during testing –Remaining work on NPRRs (e.g., NPRR113, NPRR131) –Remaining SIG paper work (e.g., rounding, combined cycle – primary/alternate handling) –Remaining software implementation changes based on testing (e.g., performance improvements, startup cost eligibility, SASM constraint modeling) Trigger start for MMS5 is a CIM schema and CIM XML data file validated and synchronized for consumption by EMS and MMS Once the trigger is available, the following tasks will take place: –ABB final review and refactoring of all workflows using the complete CIM schema & CIM XML file –ABB completion of software updates for SIG papers, post baseline 2 NPRRs, performance and production readiness tasks, and outstanding defects –Pre-FAT in Santa Clara –Release preparation & delivery to ERCOT –Loading and smoke testing in MMS DEV & MMS FAT –Final regression testing of MMS system in FAT MMS Processes & Procedures (DAM, RUC, Adjustment Period and Real-time) –MMS & MOS team members are leading the development of these documents –Reviews with the TPTF are scheduled for August, September and October meetings

13. 13 Nodal Status Report - Projects UpdatesAugust 25, 2008 CRR Project Update

14. 14 Nodal Status Report - Projects UpdatesAugust 25, 2008 Project Update – CRR Reviewed draft requirements for CRR Network Model One Line diagram with EMS project team to discuss optimizing development efforts. Planning final FAT stage with Nexant and CRR SMEs to test revised propagation of CRR Account Holder name changes within the CRR application.

15. 15 Nodal Status Report - Projects UpdatesAugust 25, 2008 COMS Project Update

16. 16 Nodal Status Report - Projects UpdatesAugust 25, 2008 Project Update – COMS Settlements/Data Agg/CSI – Product Testing at ERCOT –Development S&B/Data Agg: Completed over 97% of nodal coding and functionally verified –Outstanding code (to date): –Data Agg: Core rewrite complete. Validating with recent Product release (issue below) –Internal/External Source Reports for Data Agg, Settlements, and CODIA CSI: Completed over 70% of Lodestar Bill Determinants and Tested –Outstanding code (to date): RUC and complex bill determinants –Testing Continue to test core system with upstream system changes Continue to optimize batch cycles –Major issues Product Memory mgmt issue caused some Lodestar deliver delays. Received a fix release on 08/13/2008 that is under test. Impact: Additional regression testing time added to the schedule. Need synchronous dataset from market systems (NMMS/EMS/MMS/CRR) running in an integrated environment before market level validation can begin (required for post Shadow Settlement Extracts)

17. 17 Nodal Status Report - Projects UpdatesAugust 25, 2008 Registration and Disputes – Migrating to Integration Test –Registration 4 Release scheduled to begin integration test September 2, 2008 –Registration 4 Release includes: Siebel changes for nodal (defect fixes) Siebel to Lodestar interface (upgrade/change from zonal) Lodestar to Siebel Settlement Calendar Look Up Disputes API –Major Issue Potential for rework once integrated with other systems. Mitigation strategy to allow for additional time in iTest for contingency. Impact: Release 4 now targeted to implement in December 2008 (zonal) Credit Monitoring and Management – FAT Testing –Build 3.1 (Vendor developed interfaces) in FAT 80% Complete –Build 3.2 (Settlement and Billing / Commercial System Integrated Releases) in development targeting October 2008 delivery to FAT –Major Issues Finalization of detailed analysis and designs or changes from upstream systems has potential to cause schedule delay. Mitigation strategy to finalize requirements by September and build in contingency time for rework. Project Update - COMS (cont.)

18. 18 Nodal Status Report - Projects UpdatesAugust 25, 2008 Integration (EIP) Project Update

19. 19 Nodal Status Report - Projects UpdatesAugust 25, 2008 Integration highlights Replanning & Rework –Nearing completion of resynchronizing rework and final designs to accommodate new delivery dates from end-point systems –No new scope changes; CDR services, Alerts & Notices were the last areas to add to scope External interfaces –External Interface Specification v1.16 has finished review; comments have been addressed and the Sandbox services consistent with 1.16 were deployed on Aug. 21 –Web Service Usage shows reduced traffic a handful of new MPs connecting and improving successful submission rates –Refresher Developer Workshop for Sep. 3 Interfaces Status –Minor changes to interface status from last period; One new design for REG -> S&B No new construction completions Two deployments to Test; CDR adapter & CSI (MMS -> S&B) Diagram Key –Green/solid means that design, code or deployment is in maintenance and subject to rework –Red/dashed means design, code or deployment is incomplete Interface Rework –Green/solid means no expected rework because the final system or final system component has been integrated –Red/dashed means expect rework because final system is not available and interfaces may change

20. 20 Nodal Status Report - Projects UpdatesAugust 25, 2008 Design metric – 97% Nodal has 10 major end-point systems, 36 Interfaces, 57 major integration components and around 400 Information Flows

21. 21 Nodal Status Report - Projects UpdatesAugust 25, 2008 Construction metric – 85%

22. 22 Nodal Status Report - Projects UpdatesAugust 25, 2008 Deployed to Testing metric – 50%

23. 23 Nodal Status Report - Projects UpdatesAugust 25, 2008 Rework – 5% 1 component is final

24. 24 Nodal Status Report - Projects UpdatesAugust 25, 2008 Web Service Usage Update to Aug 15, 2008

25. 25 Nodal Status Report - Projects UpdatesAugust 25, 2008 Additional Detail on Web Service Usage During the health check in May, the statement was made that the strategy is working externally. More information was requested to illustrate whether the market was exercising all of the services and therefore business processes –The detail verifies the statements made at the time that most transactions were COP and TPO The following results provide counts of success and failure for all transactions –First chart indicates volume of successfully & unsuccessfully invoked services –2 nd & 3 rd charts show the most frequent successful and unsuccessful processes. –Y scale is logarithmic, X scale shows all transaction types for two graphs

26. 26 Nodal Status Report - Projects UpdatesAugust 25, 2008 Transactions volumes – 227k hits by 315 entities at 91% overall success rate T – successful invoked transactions F – unsuccessfully invoked transactions There were 605 hits on July 4th Success rate improved to 98% over last two weeks. Fewer new entities in the last 2 weeks Volumes have decreased over the last few weeks compared to when the EDS tests were running

27. 27 Nodal Status Report - Projects UpdatesAugust 25, 2008 30 most frequent correctly invoked processes

28. 28 Nodal Status Report - Projects UpdatesAugust 25, 2008 30 most frequent incorrectly invoked processes

29. 29 Nodal Status Report - Projects UpdatesAugust 25, 2008 Integration Testing (INT) Project Update

30. 30 Nodal Status Report - Projects UpdatesAugust 25, 2008 Project Update – INT Integration Release Planning / Nodal Integrated Schedule –Working with Project Managers to understand software deployments for system to system Integration Testing –Detailing Integration Release Windows “Buckets” to align interface and software compatibility for Integration Testing –Working with the EDS team to align dates with delivered functionality –Estimating time for Performance, Security, and End to End testing –Supporting Program efforts for definition and collection of datasets to support Integration Testing Functionality, Reports, and Extracts Testing –Input and output data validation of CMM integration tables; including regression testing of Credit Calculations –Settlement Extracts, data warehouse (EDW) replication and reports testing –Current Day Reports testing –MIS Portal testing Integration Testing –Installing and testing of latest software released for Integration testing EMS5 Internal Interfaces to the Market and Settlements systems MMS4 system installed and running for External Web Services and downstream interface testing Updated External Web Services code to support MMS4 (EIS1.15)

31. 31 Nodal Status Report - Projects UpdatesAugust 25, 2008 Questions?