COMMERCIAL OPERATIONSORGANIZATION

Betty DayDirector, Commercial Operationsbday@ercot.com 512-248-3877 (office)512-426-9266 (cell)512-248-6434 (fax)

9/4/20082

Organizational Structure

Betty DayDirector,

Commercial Operations

Don TuckerSettlementMetering

Calvin OpheimEnergy Analysis &

Aggregation

Amanda BauldSettlements &

Billing

Karen FarleyRetail Customer

Choice

Jackie Ashbaugh CO Data Integrity &

Admin

Beth GarzaCongestion Analy.

& Revenue Rights

Kenneth RagsdaleMarket Redesign

Manager

9/4/20083

Data Integrity

& Administration

(Jackie Ashbaugh)

Commercial Operations – Departments & Core Functions

Retail Customer

Choice

(Karen Farley)

Settlements & Billing

(Mandy Bauld)

Energy Analysis & Aggregation

(Calvin Opheim)Settlement Metering

(Don Tucker)

• Ensure Transaction Integrity – Daily Assurance

• Owner of Data Extract Variance Resolution - Retail

• Market Synchronization−REPs / TDSPs /

ERCOT−Reject monitoring−Issue analysis and

resolution−Safety Net monitor

/reconcile

• Systems Synchronization−NAESB & Paperfree−Paperfree & TCH−TCH & Siebel−MarkeTrak−ETS

• Retail systems health checks and problem identification

• Retail systems work flow exception clearing & reprocessing validation

• Retail SIR and upgrade testing, migration support and production verification

• Provide Level 3 Support for Market Participants, PUCT and ERCOT staff

• Nodal transition activities

• Mgmt & Admin, including SAS 70 and other audits

• Ensure COMS ESIID & Market Participant Data Integrity – Daily Assurance

• Ensure COMS Extracts and reports data integrity

• Owner of Data Extract Variance Resolution – Wholesale

• Consumption Data Loading

• Systems Synchronization−Siebel & Lodestar−Lodestar & EIS−Siebel & EIS−EIF & EIS

• Support Business Intelligence layer of EIS

• Lodestar system health checks and problem identification

• Lodestar system work flow exception clearing & reprocessing validation

• Siebel, Lodestar, & EIS SIR and upgrade testing, migration support and production verification

• Engaged in dispute resolution, as necessary

• Provide Level 3 Support for Market Participants, PUCT and ERCOT staff

• Nodal transition activities

• Mgmt & Admin, including SAS 70 and other audits

• Ensure the accuracy of Settlement calculations and Invoicing calculations

• Ensure timely delivery of Daily Settlement Statements and Weekly Invoices

• Conduct Annual & Monthly TCR Auction

• Process selected input data from - Data Agg, TCRs, Planning, Sys Ops)

• Ensure manual data imports and workarounds are executed correctly

• Ensure timely and accurate processing of Verifiable Cost submittals from QSE’s and Disputes

• Schedule runs for Lodestar system workflow

• Prepare standard monthly and ad-hoc reports

• Lodestar SIR and upgrade testing, migration support and production verification

• Engaged in dispute resolution, as necessary

• Provide Level 3 Support for Market Participants, PUCT and ERCOT staff

• Nodal transition activities

• Mgmt & Admin, including SAS 70 and other audit

• Data Aggregation−Modeling: Load

Generation, NOIEs, DC Ties, Losses

−Reporting & Posting: Losses, UFE, IDR est

−Output Verification

• Load Profiling Modeling−Analysis−Segmentation−Weather Zones

• Daily Creation & Verification of Load Profiles

• Validate Profile Assignments to ESI IDs

• Analyze/Evaluate New Load Profile Requests

• Load Research Sampling/Data Analysis

• Monitor/Report Switched Load

• Lodestar SIR and upgrade testing, migration support and production verification

• Engaged in dispute resolution, as necessary

• Provide Level 3 Support for Market Participants, PUCT and ERCOT staff

• Nodal transition activities

• Mgmt & Admin, including SAS 70 and other audits

• Data Acquisition−EPS Meter Polling−VEE for EPS Meters−EPS Data Loading−Monitor TDSP Access

to EPS Facilities

• EPS Meter Engineering−Design Approval−Exemption Approval−Site Approvals,

Monitor, Review & Audit Inspector Training

−Maintain Guides, Forms & Procedures

−Maintain settlement metering web page

−Review/Approve DLF methodology

• Competitive Metering−Status Reporting −Maintain Guides−Qualifying Meter List−Maintain Competitive

Metering Web Page

• Engaged in dispute resolution, as necessary

• Provide Level 3 Support for Market Participants, PUCT and ERCOT staff

• Nodal transition activities

• Mgmt & Admin, including SAS 70 and other audits

Congestion Analysis & Revenue Rights

(Beth Garza)

• Congestion Analyses

• CRR Network Model Development

• CRR Market Administration and Validation

• CRR Market Development

• Annual and Monthly Competitive Constraints test

• Engaged in dispute resolution, as necessary

• Provide Level 3 Support for Market Participants, PUCT and ERCOT Staff

• Nodal transition activities

• Mgmt & Admin, including SAS 70 and other audit

9/4/20084

Commercial Operations – Strategic Focus

• SB7 – perform core business operations at highest standard Ensure that information relating to a customer’s choice of retail

electric providers is conveyed in a timely manner to the persons who need the information

Ensure that electricity production and delivery are accurately accounted for among the generators and wholesale buyers and sellers in the region

• Nodal Implementation – wholesale market transformation

• Advanced Metering – retail market transformation

9/4/20085

Questions