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Load Research Sampling (LRS)Project Summary

12/16/2004

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LRS Project Summary -- Project

• Project Measurement and Metrics– Timeline

• Project start date -- 2Q2003

• Scheduled Project deployment date (agreed to by Market) – 11/1/2004

• Actual Deployment date --11/1/2004

– ERCOT Budget

• Original Project Budget -- $1.5MM (impact analysis)

• Revised Project Budget -- $700k

• Actual charges to date -- $660k

• ~$40k in outstanding invoices that should be reconciled over the next month

– 5 TDSPs fully engaged in the program

– 13 CRs fully engaged in the program

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LRS Project Summary -- Market

• TDSPs Commitment– All TDSPs completed Pilot testing– Inspected over 4500 IDR sample Sites– Installed over 4200 IDR sample points– Sample point readings have been transmitted to ERCOT starting in

August 2004– TDSPs have been diligent about replacement points, and working

with ERCOT staff on sample point issues

• CR Commitment– All CRs have completed Pilot testing– ERCOT is in the process of building data to transmit to CRs– CRs will be working with ERCOT staff if there are any additional

issues

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LRS Project Summary

• Market Summary– TDSP Installation update as of 12/1/2004

– ERCOT verification of sample point installation and transaction confirmation underway

– ERCOT working with TDSPs on remaining installations and replacements (on-going)

– ERCOT transitioning to O&M role for sample point management and tracking

CompanyNumber of Sample

Points Reviewed Inspected Replaced Installed% Installed

by MP

Sent IDR installation file to ERCOT for sample

point% IDR Installation

CompleteAEP North 375 375 425 29 366 97.6 366 97.6AEP Central 723 723 659 75 581 80.4 581 80.4Centerpoint 423 423 506 82 423 100.0 423 100.0TXU E.D. -- Legacy 934 934 934 50 934 100.0 934 100.0TXU E.D. -- New 1831 1831 1831 0 1831 100.0 1831 100.0TNMP 105 105 105 33 105 100.0 100 95.2Sharyland 1 1 1 0 1 100.0 1 100.0Totals 4392 4392 4461 269 4241 4236Complete to date 100.00% 100.00% 101.57% 7.78% 96.56% 96.45%

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LRS Project Summary -- ERCOT

• ERCOT Software solution– Deployment of new software applications

• Client/server Lodestar

• Client/server SAS

– Deployment of “Retail like” transaction management solution

– Deployment of back end sample tracking system

• ERCOT Hardware and Environments– Built out 11 new servers for the project (all on new Blade

technology)

– Built 4 new environments for internal testing, Pilot, and Production

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LRS Project Summary -- ERCOT

• Transactions– Tracking solution completely transaction based (minimal data clean-up

required)

– Utilized existing MV-90 technology transactions to minimize cost for data formatting, data clean-up, and data transmission

– Created 4 new transactions for TDSPs to transmit sample data to ERCOT

– Created 19 additional internal transactions

• Issues and Resolutions– Identified over 20 critical issues during testing and all were resolved

– Identified numerous additional fixes and enhancements throughout the project. Most have been completed and remaining are being rolled into O&M

– No critical or High issues or defects outstanding

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LRS Project Finale

• Many thanks to the following groups (since there are way too many people to list):– TDSP Metering staffs– TDSP Load Profiling depts.– TDSP Transaction Management depts.– CR Load Profiling groups– ERCOT Load Profiling dept.– ERCOT Transaction Services– ERCOT Web Services– ERCOT Infrastructure and Networking– ERCOT Production Support– PWG– RMS– And probably many more…. – Thanks again for everyone’s hard work and commitment ---

Ultimately, that is what made this project a success !!