Mitigating High EV Charging Demand on Residential Distribution Systems Using Community Energy Storage (CES)

This study investigates the impact of Community Energy Storage (CES) on mitigating high electric vehicle (EV) charging demand in residential distribution systems. The research addresses voltage drop issues by strategically placing and sizing CES using a modified IEEE-33 bus system and MATPOWER. With increasing EV and photovoltaic (PV) system adoption, managing voltage drops due to the mismatch between daytime PV output and nighttime EV load is challenging. While individual battery storage is costly and often unattractive to homeowners, utility-installed CES can store excess PV energy during the day and release it at night, reducing voltage drops and line losses. Simulation results demonstrate that, CES can significantly improve voltage profiles and minimize power losses. This offers valuable insights for CES deployment in residential networks to manage high EV charging demand.