COMMERCIAL OPERATIONS ORGANIZATION Betty Day Director, Commercial Operations bday@ercot

1. COMMERCIAL OPERATIONS ORGANIZATION Betty Day Director, Commercial Operations bday@ercot.com 512-248-3877 (office) 512-426-9266 (cell) 512-248-6434 (fax)

2. Organizational Structure Betty Day Director , Commercial Operations Karen Farley Calvin Opheim Amanda Bauld Kenneth Ragsdale Don Tucker Jackie Ashbaugh Beth Garza Retail Customer Energy Analysis & Settlements & Market Redesign Settlement CO Data Integrity & Congestion Analy. Choice Aggregation Billing Manager Metering Admin & Revenue Rights

3. Commercial Operations – Departments & Core Functions Settlement Metering (Don Tucker) Energy Analysis & Aggregation (Calvin Opheim) Settlements & Billing (Mandy Bauld) Data Integrity & Administration (Jackie Ashbaugh) Retail Customer Choice (Karen Farley) Congestion Analysis & Revenue Rights (Beth Garza) • 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 • 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 • 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 • 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 • 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 • 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

4. 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

5. Questions