Webinar: Stress Testing Methods for Evaluating Resilience to Extreme Events: Valuing Interregional Transmission

Featured Speaker: Ryan Deyoe, Senior Analyst, Telos Energy

About the Webinar: As the electricity grid changes due to load growth, electrification, and resource changes in the face of increasingly frequent extreme weather, high-impact events like winter storms and heat domes highlight the critical need for rigorous system stress testing to ensure a resilient grid. Current planning often underestimates grid resilience by failing to properly account for the availability and value of interregional transmission, yet interregional transmission and available external resources have helped mitigate some of the most extreme events in recent history, clearly exhibiting the high resilience value offered by interregional transmission. Recognizing this inherent value is a necessary step to realize coordinated efforts to expand transfer capabilities and enable a more resilient grid. Building on previous work by the ESIG Transmission Resilience Task Force, this webinar presents a new stress testing framework designed to enable planners to identify and evaluate grid resilience against extreme events and account for the value of interregional transmission.

This session will discuss: (1) A standardized four-step process for developing stress tests that utilizes multi-year, weather-correlated data to identify extreme event scenarios; (2) Techniques for stressing grid risk factors, including the hourly energy margin approach to dynamically represent external resource availability in an hourly, chronological, and correlated fashion; (3) Key findings from a Southwest Power Pool (SPP) case study, which demonstrated that modeling detailed interregional transfer capability and external resource availability reveals significant resilience benefits during extreme events; and (4) How the stress testing framework supports compliance with regulatory drivers of extreme event modeling and ensures the system is resilient to extreme tail risks.

About the Speaker: Ryan Deyoe is a Senior Analyst at Telos Energy and has experience in fundamental power market modeling, resource adequacy and resilience analysis, and transmission planning. At Telos Energy he has worked on projects ranging from multi-value transmission planning, wide-area reliability assessments, clean electricity planning, long duration energy storage assessments, and aiding stakeholders during IRP processes, including providing expert witness testimony.

Prior to joining Telos Energy, he worked for PA Consulting in their Energy and Utilities practice where he led their ERCOT modeling effort. There he worked to develop generation supply forecasts, assessing ERCOT conditions out to 2040 and determining the economic new entry of generation units. Ryan attended the University of Wisconsin – Madison where he earned a BS in Civil Engineering with a focus on engineering for energy sustainability.

Registration Cost: FREE

Moderator: James Okullo, Director of System Planning, ESIG

Q&A Session: We will be using the Slido platform for Q&A. Please submit your questions and follow along during the event at this link.