Wireless charging company Momentum Dynamics (earlier post) says it will deliver 200kW wireless (inductive) charging systems in 2016 for the municipal bus market.
According to CEO Andrew Daga, the company previously delivered 25 kilowatt (kW) and 50 kW charging systems to strategic partners in the automotive industry in 2015, and said the move to its 200 kW system is a natural progression to meet a critical market need. Even higher power systems are in development.
Daga said the company is planning to deliver two wireless charging systems to municipal agencies this year in Maryland and Washington state. Wireless chargers use resonant magnetic induction to transfer power without the use of cables. They include the transmitter on the ground and a power receiver mounted to the underside of the vehicle. Momentum says it can support an air gap of up to 12".
In March, Oak Ridge National Laboratory (ORNL) reported the successful demonstration of a 20 kW wireless charging system with 90% efficiency. The researchers are already looking ahead to their next target of 50-kilowatt wireless charging, which would match the power levels of commercially available plug-in quick chargers. (Earlier post.)
Standards for wireless charging—e.g., SAE J2954 (earlier post)—are still under development.