Wireless Electric Vehicle Charging
NREL is investigating the requirements and feasibility of wireless electric vehicle charging.
High-power, in-road, dynamic wireless charging could go a long way toward realizing the potential of charge-sustaining electric vehicle operation (i.e., unlimited range with in-route recharge) while enabling the use of smaller, cheaper batteries.
Research focuses on associated hardware, communication, system planning, and control strategies, as well as the potential for in-road wireless charging to be cost-competitive with conventional fast-charging technologies.
System Design Variables
Researchers are looking at various interrelated variables to design an optimized system:
- Roadway classes to be electrified
- Roadway charging segment locations and lengths
- Charging power levels
- System interoperability to serve a range of vehicle classes (i.e., light-, medium-, and heavy-duty)
- Appropriate battery capacity to enable charge-sustaining operation for long-distance travel
- Feasibility of wireless charging for shared automated electric vehicles.
Data and Tools
Researchers employ these tools and data repositories to study and develop wireless charging technologies and systems: