GRID OPERATIONS ORGANIZATION John Adams Director, Grid Operations jadams @ercot

1. GRID OPERATIONS ORGANIZATION John Adams Director, Grid Operations jadams@ercot.com 512-248-3130 (office) 512-694-3364 (cell)

2. Organizational Structure Steve Myers Mgr., Operating Standards Trip Doggett Sr VP & . COO SYSTEM PLANNING & CLIENT SERVICES MARKET/OPS COMPLIANCE MARKETS SUPPORT OPERATIONS Joel Mickey Kent Saathoff TBD Dale Goodman Betty Day Dir, Market Operations Support VP System Planning & Chief Compliance Officer Director, Markets Dir, Client Services Operations John Adams Dan Woodfin Colleen Frosch Director System Planning Mgr. System Dir. Operations Support Operations , Sr .

3. Organizational Structure John Dumas Manager Operations Planning Cagle Lowe Manager SO Division Project Org. Curtis Crews Manager Network Modeling John Adams Director Grid Operations Bill Blevins Manager Operations Engineering

4. Grid Operations – Departments & Core Functions Network Modeling (Curtis Crews) Operations Planning (John Dumas) Operations Support & Nodal Transition (Bill Blevins) Project Management & Training (Cagle Lowe) • Modeling of Electric Power system for Zonal Energy Management System • Development of processes and procedures for nodal market modeling supporting: • EMS • MMS • CRR • Outage Scheduling & Evaluation • System Planning • Supervision of Modeling personnel • Development of quality assurance processes for market and TSP data. • Communication with market participants regarding modeling issues; including representation on the Network Modeling Task force • State Estimator • Real Time contingency analysis • Voltage Stability Analysis Tool • Operational transient stability analysis • Black Start procurement • Operations planning tools including • MAI • Replacement analysis • Unit testing and Ancillary Service Qualification • Ancillary Service Requirements • Load Forecasting • Wind Forecasting • Development of operations planning strategy • Communication with market participants regarding operation planning issues including representing ERCOT on the Reliability and Operations Subcommittee • Approve or reject planned outages to maintain reliability • Develop operational limits for grid operations • Report Operations performance including • NERC • DOE • TRE • ROS • Perform engineering studies and provide expert advise to support real-time operations • Develop remedial action plans as needed to support efficient/reliable operations. • Propose and implement improvements to real-time operations tools • Coordination of Nodal Transition • System Operations & Market projects delivery • Develop and maintain the system operator training program • Develop and deliver Operator Training Simulator (OTS) Scenarios • Develop and deliver Operator Instructor-led training • Manage Operator Continuing Education Hours (CEH) • Develop and implement annual Blackstart Seminars (ERCOT-wide) • Develop and Facilitate ERCOT-wide Storm Drills • Develop and maintain System Operations operating procedures • Represent ERCOT on NERC subcommittees and standard drafting teams

5. Grid Operations – Strategic Focus • Maintain Reliability • Integrate Wind energy successfully • Nodal Implementation – wholesale market transformation • Demonstrate compliance with NERC standards • Perform tasks as cost effectively as possible

6. Questions