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2025 Spring Technical Workshop
March 17 - March 20
Presentations from our 2025 Spring Technical Workshop held in Austin can be downloaded below.
Recordings of workshop sessions are now available on the ESIG YouTube Channel.
2025 Spring Technical Workshop Introduction / Opening Remarks
Opening Remarks
Mark Ahlstrom, NextEra Energy & ESIG Board of Directors’ President
Keynote – Opportunities and Challenges in the Texas Power Grid – ERCOT Perspective
Venkat Tirupati, Vice President of Grid Transformation, ERCOT
Industry Overview
Debra Lew, Executive Director, ESIG
Opening Plenary Session: Discussion on Large Loads – Challenges and Solutions
Session Chair: Erik Ela, Director of System Operation and Electricity Markets, ESIG
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Agee Springer, Senior Manager, Grid Interconnections, ERCOT
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Jeff Bladen, Head of Energy, Verrus
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Katelynn Vance, Manager, ET Planning & Strategic Initiatives, Dominion Energy
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Amanda King, Director, Interconnection and Planning, EPE
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Bryn Baker, Senior Director for Policy and Market Innovation, Clean Energy Buyers Alliance
Session 1A: Grid-forming Inverters
Session Chairs: Andrew Isaacs, Vice President, Electranix and Lukas Unruh, Power Systems Studies Engineer, Electranix
Large AI-based Data Center Load Challenges (flicker and network reliability) and Mitigation Techniques Using GFM
Sam Maleki, Director, T&D Engineering and Consulting, RMS Energy
GFM IBR: Functional Specifications, Simulation Strategies, and Scenario Recommendations
Hossein Ashourian, Power System Modeling and Simulation Specialist, EMTP
Utility-Scale Grid-Forming Projects & Lessons Learned
Sarah Walinga, Staff Power Control Engineer, Tesla and Ali Mohammadpour, Staff Power Systems Engineer, Tesla
Benefits of GFM in Stability-constrained Areas
Deepak Ramasubramanian, Senior Technical Leader, EPRI
Establishing Grid-Forming Capability Requirements at IESO: Motivation, Development, and Verification
Mohamed ElNozahy, Engineering Manager, IESO
Session 1B: Demand Flexibility
Session Chair: Alison Silverstein, Consultant, Alison Silverstein Consulting
Value of Lost Load in Texas
Sanem Sergici, Principal, The Brattle Group
Virtual Power Plant Study
Angela Long, Founder & CEO, Rockcress Consulting
The Impact of Demand Flexibility in Wholesale Power Markets
Beth Garza, Senior Fellow, R Street Institute
Demand Flexibility from Small Retail Customers
Michael Lee, Former CEO, Octopus Energy US
Session 2A: Control Room of the Future and System Operations
Session Chair: Aidan Tuohy, Director, EPRI
EPRI Report
John Simonelli, CEO and Managing Director, Flashover LLC
Online Stability Assessment, Lessons Learned and Challenges
Vamsi Madam, Manager of Real Time Grid Operations Support, ERCOT
Inertia Monitoring in Hawaii and GFL vs GFM Contribution
Jin Tan, Principal Engineer, NREL
Inertia, Oscillations, System Strength Monitoring
Duncan Burt, Chief Strategic Officer, Reactive Technologies
Session 2B: DER Integration for Transmission and Distribution Services
DER Integration for T&D Services
Session Chair: Obadiah Bartholomy, Manager, Distributed Energy Strategy, SMUD
Emerging Issues for DER Grid Services in Deregulated Markets
Arushi Sharma Frank, Founder and Principal, Luminary Strategies
Grid Services Compensation Fund
Jen Schilling, Vice President, Grid Modernization, Eversource
Case Studies of DER Management
Astrid Atkinson, CEO and Co-Founder, Camus Energy
Sourcing DERs for Distribution Grid Services
Darren Murtaugh, Director, Electric Distribution Strategy, ICF
Session 3A: FERC 901
FERC 901 Milestone 3 – An Overview
Session Chair: JP Skeath, Manager, Engineering & Security Integration, NERC
Project 2022-02 – Uniform Model Framework for IBRs
John Schmall, Transmission Planning, ERCOT
Project 2020-06 – Verification of Models and Data for Generators
David Marshall, SPC Transmission and Markets, Southern Power
Project 2021-01 – System Model Validation with IBRs
Hari Singh, Core Electric Cooperative
Project 2022-04 – Electromagnetic Transient (EMT) Modeling
Dan Kell, Global Director, eGrid, Hatch Ltd
Session 3B: Integrated Planning
Session Chair: Liz Cook, Vice President of Technical Strategy, Association of Edison Illuminating Companies
Integration of High Levels of Clean Energy in China’s Northeast Power Grid of SGCC
Huang Zhen, Deputy Chief Engineer of State Grid Corporation of China & Director of Northeast Branch of State Grid Corporation of China
Ten-Year Network Development Plan 2024
Ralph Pfeiffer, Head of System Development – International Planning Products, Amprion (Germany)
Grid of the Future: Optimizing Across T&D
Mark Schoenheider, Manager, Operations Strategy, Planning Grid Technology and Modernization, Xcel Energy
System Expansion Modeling
Aaron Burdick, Director, Integrated System Planning, E3
Integrated Planning Guidebook
Carlo Brancucci, Co-founder and CEO, encoord
Session 4A: Oscillations and Stability
Session Chair: Deepak Ramasubramanian, Senior Technical Leader, EPRI
Large Load Impact on Stability Limits
Yunzhi Cheng, Manager, Operations Stability Analysis, ERCOT
Feedback and Oscillations
Lingling Fan, Professor, University of South Florida
Investigation of Persistent Sub-synchronous Oscillations in the Netherlands
Aleksandar Boričić, Dynamics & Stability Expert, System Operations, Tennet
Stability Screening Methods and EMT/PSSE Linkages
Matt Richwine, Founding Partner, Telos and Nick Miller, Principal, Hickory Ledge
Session 4B: Unlock Expansion of Grid to Facilitate Large Loads
Session Chair: Jeff Bladen, Head of Energy, Verrus
Colocation of Generation and Large Loads
Karen Onaran, President and CEO, ELCON
Protection Settings and Studies for Co-located Load/Generation
Elliott Flick, VP of Commercial Projects, Constellation Energy
New Market Participation Model for Co-location
Sai Moorty, Principal, Market Design & Development, ERCOT
Electrification & System Integration of Industrial Heat
Michael Walsh, Business Advisor, RedoxBlox (Ireland)
Session 5A: Grid-Enhancing Technologies Case Studies
Session Chair: James Okullo, Director of Transmission Planning, ESIG
Power Flow Control Experience in Southern Company
Franchesca Aponte, Transmission Planning Project Manager, Southern Company and Elizabeth Chase Battaglio, Manager – Transmission Planning East, Southern Company
Experience with Dynamic Line Ratings at GRE
Michael Craig, Manager, Energy Management Systems, Great River Energy
Topology Optimization Case Study at EDF Renewables
Alexandra Miller, Director, Transmission Analytics & Policy, EDF Renewables and Pablo Ruiz, CEO, NewGrid and Senior Consultant, The Brattle Group
The Promise and Pitfalls of High Performance Conductors
Casey Baker, Senior Program Manager, Transmission Projects, GridLab
Session 5B: Improved Modeling for System Planners
Session Chair: Josh Novacheck, Electricity System Planning Engineer, NextEra Energy
Incorporating Stressful Grid Conditions for Reliable and Cost-Effective Electricity System Planning
Trieu Mai, Senior Energy Analyst, NREL
Managing Variability with High Fidelity Capacity Expansion
Russ Philbrick, CEO/CTO, Polaris System Optimization
Incorporation of Transmission Power Flow in Resource Adequacy Modeling
Kevin Carden, President, Astrape
Iterative Portfolio Optimization and Modeling Approaches for Planning
Derek Stenclik, Founding Partner, Telos
Session 6A: Transmission Planning
Session Chair: Warren Lasher, Lasher Energy
Probabilistic Methods Applied to MISO’s LRTP Business Case
Armando Figueroa-Acevedo, Senior Engineer, MISO
Meeting Accelerated Demand Growth in ERCOT with 765kV Transmission
Sun Wook Kang, Senior Manager, Dynamic Studies – Grid Planning, ERCOT
Transmission Value Assessment
Dev Millstein, Staff Scientist, LBNL
Integrating Siloes of Transmission Planning
Ahmed Rashwan, Senior Director, Transmission Planning and Operations, Utilities, EPE
Session 6B: Resource Adequacy
Resource Adequacy: Introduction
Session Chair: Tom Acker, Sr. Principal Research Engineer, SRP
Resource Adequacy in ERCOT
Julie Jin, Supervisor, ERCOT
Climate Change Implications for Resource Adequacy in the US Desert Southwest
Jon Cook, Principal Resource Analyst, SRP
Resource Adequacy Under System Transformation: Energy Storage, Capacity Markets, and Scarcity Pricing
Todd Levin, Electricity Markets Team Lead, ANL
Zonal vs Nodal Reliability Analysis in NYISO
Alex Rudkevich, President, Enelytix
Cause Evaluation of Load Loss Hours in Monte-Carlo Dispatch Simulations
Max Muller, Engineer for Energy Economic Scenarios, TransnetBW GmbH (Germany)
Session 7: Closing Plenary Session: Scale, Speed and Supply Chains
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Session Chair: Steve Martz, Vice President, Integrated Planning, Xcel Energy
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Damir Novosel, President, Quanta Technologies
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John Francis, Business Transformation Partner, ScottMadden
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Kevin Jacobs, Director, Supply Chain Consulting, Wood Mackenzie