Full Title: Electric Vehicle Managed Charging: Forward-Looking Estimates of Bulk Power System Value
Author(s): Elaine Hale, Luke Lavin, Arthur Yip, Brady Cowiestoll, Jiazi Zhang, Paige Jadun, and Matteo Muratori
Publisher(s): National Renewable Energy Laboratory
Publication Date: September 15, 2022
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Description (excerpt):
When and where electric vehicle (EV) charging occurs has significant implications for power systems supporting widespread EV adoption, especially with high shares of wind and solar generation. Numerous studies have estimated the value of scheduling or otherwise managing electric vehicle charging in such power systems. This study improves on those works by leveraging detailed simulation models for EV adoption, EV use, EV charging, and bulk power system operations, and by linking them with methods for describing charging flexibility at both the individual vehicle and aggregate levels.
This technical potential study focuses on how the value of EV managed charging (EVMC) changes depending on charging flexibility type (within-charging session or within-week scheduling), dispatch mechanism (direct load control or one of several price-based mechanisms), and managed charging participation rate, assuming ubiquitous availability of vehicle charging infrastructure and on-time completion of all trips. The study is based on a passenger light-duty vehicle (LDV) adoption scenario with 100% electric vehicle sales by 2035 and an envisioned 2038 New England power system for which within-ISO generation is 84% clean.