Sizing of Fast Charging Infrastructure Site for Commercial Electric Vehicle Fleet Considering Smart Charge Management

This paper presents a unique approach for sizing and planning of charging infrastructure for commercial electric vehicle (EV) fleets. The approach considers real-world operation data collected from non-EV fleet available at Fleet DNA database from the National Renewable Energy laboratory. The primary goal is to determine number of chargers and their power ratings to support EV fleet charging within the available dwell time at the charging station. Further, based on the selected charging infrastructure, the utility interconnection agreements, annual total cost of ownership (TCO), and charger utilization was addressed through on-site charge management. The impact of smart charge management (SCM) on the site planning was addressed and included in this study. A case study for a commercial refuse truck fleet electrification at a waste management facility in Washington, PA was analyzed. This study also proves the efficacy of SCM in planning in terms of reductions in charging infrastructure needed, decrease in peak demands, lower TCO, and increase in chargers’ utilization.