Truck Stop Electrification for Heavy-Duty Trucks
Truck stop electrification can reduce diesel emissions and save on fuel costs, although there are indirect impacts associated with the method of electricity generation.
Electrified parking spaces (EPS), also known as truck stop electrification, allow truck drivers to provide power to necessary systems, such as heating, air conditioning, or appliances, without idling the engine.
The U.S. Department of Transportation (DOT) estimates there are about 5,000 truck stops in the United States. Options for truck stop electrification include single-system electrification and dual-system electrification, also known as "shorepower."
In single-system electrification, off-board equipment at the truck stop provides heating, ventilation, and air conditioning (HVAC). These HVAC systems are contained in a structure above (called a gantry) or on a pedestal beside the truck parking spaces. A hose from the HVAC system is connected to the truck window and, in some cases, to a computer touch screen that enables payment.
These stand-alone systems are generally owned and maintained by private companies that charge an hourly fee. To accommodate the HVAC hose, an inexpensive window template may be required in the truck.
Dual-system electrification, also known as "shorepower," requires both onboard and offboard equipment so trucks can plug into electrical outlets at the truck stop. To use dual-system electrification, trucks must be equipped with an inverter to convert 120-volt power, electrical equipment, and hardware to plug into the electrical outlet. Necessary electrical equipment might include an electrical HVAC system.
Truck stop outlets are owned by the truck stop or by a private company that regulates use and fees. The trucking company or driver owns and maintains the onboard equipment.