Typical EV Charging Use Cases for Refuse Trucks

Joseph Gottlieb, CTO, Tuesday October 19, 2021

Another group of vehicles near the “far end” of the medium- and heavy-duty (M/HD) electric vehicle (EV) charging spectrum is refuse trucks. Like public transit buses, these vehicles are usually very heavy – think DoT Class 8, with weights over 33,000 lbs (the truck in the picture has a GVW of 50,000 lbs). They also have large battery capacities, which range from 221 kWh to over 400 kWh. Like public transit buses, charging these vehicles from AC chargers is impractical. Even an 18kW AC Level 2 charger would take over twelve (12) hours for a refuse truck with a 221kWh battery capacity. In comparison, the time to charge these vehicles from a DC fast charger ranges from between four hours to seven hours for a 60kW charger, and between two hours to slightly over 3 hours with a 125kW charger.

Unlike public transit buses, sharing a DC fast charger across multiple electric refuse trucks is a relatively straightforward proposition. A 125kW DC fast charger could charge up to four refuse trucks with a 221kWh battery capacity in an 8-hour charging window, while a 60kW DC fast charger could charge up to two of these vehicles. For refuse trucks with a 400kWh battery capacity, a 125kW DC fast charger could charge three vehicles in a ten-hour charging window (a 60kW DC fast charger would have to be dedicated to a vehicles with this battery capacity). In any cases, an electric refuse truck fleet with a mix of vehicle weights and battery capacities (likely, a fairly common occurrence as electric refuse trucks start being deployed), could utilize multiple charging solutions with shared dispensers to meet its needs. 

If you are looking for made in the USA high-power DC fast charging systems for those EVs, look to Rhombus Energy Solutions. Our market-leading bi-directional EV charging systems (which are designed from the start for the needs of fleet operators) are designed and built in the USA. Rhombus also excel in the design of high-power smart inverters for next-generation renewable energy and energy storage deployments. Our expertise in energy management system (EMS) software is also embedded in our VectorStat EMS controller and software which is embedded in our EV charging systems and smart inverters. We have built over a thousand V2G-capable high-power, high-reliability chargers and bi-directional smart inverters for a variety of different sizes and classes of EVs.

Find out how we can help you by contacting us at news@rhombusenergy.com, or by reading our Vehicle to Grid Solution Brief.