Featured Speaker: Aidan Tuohy, Director, Transmission Operations and Planning, EPRI

About the Webinar: Ensuring resource adequacy – a measure of whether the current, or projected, resource mix is sufficient to meet capacity and energy needs for a particular grid– is crucial for ensuring a reliable energy transition. Probabilistic approaches have traditionally been used to assess resource adequacy, but in light of the changing nature of the resource mix, increased demand participation and the recent implications of extreme events, there is a need to revisit how resource adequacy is assessed. As recent events have shown, existing methods, models and tools for assessing resource adequacy do not always accurately portray risk and identify the potential for shortfalls, particularly during periods of extreme system stress such as cold weather.

In this webinar, hear about the recently completed EPRI Resource Adequacy for a Decarbonized Future Initiative (www.epri.com/resource-adequacy). This project, which ran from mid-2021 to end of 2023, addressed a number of issues and challenges related to resource adequacy (RA). As resources such as wind/PV, batteries, demand flexibility and hybrids, as well as future resources such as hydrogen and long duration storage, enter the system, models and tools need to be able to include their characteristics compared to traditional resources. EPRI’s project built on other ongoing industry work, including the ESIG Resource Adequacy Task Force, and focused on a few main workstreams. A Process workstream focused on the metrics, criteria and scenarios used in RA studies. Here, recommendations on metrics to be assessed and the insights they provide were described, while methods for identifying short and long term scenarios to be studied were developed. A Models and Data workstream investigated existing and emerging approaches to model supply and demand side resources, as well as data required to ch