Momentum Dynamics to Deliver 200 kW Wireless Inductive Charging Systems for Transit Buses

Momentum Dynamics Corporation, a developer of high-power wireless inductive charging for electric vehicles, reports that Vineyard Transit Authority in Massachusetts has agreed to purchase the companys high-power wireless charging systems to support zero-emission electric transit buses. VTA serves the community of Martha’s Vineyard and is the first transit agency in Massachusetts with plans to convert all diesel buses to battery electric. The systems are designed to enable unlimited driving range through an on-route charging network.

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Momentum 200KW system for Link Transit in Wenatchee, WA

“Our high-power inductive charging system is a key to extending the driving range of battery electric vehicles. The main impediment to the adoption of electric buses is their limited driving range and this is a solution to that problem, said Andrew Daga, CEO of Momentum.

Andrew Daga
Three co-located 200 kilowatt wireless charging systems will be installed at the Church Street Visitors Center in Edgartown, MA in time for the island’s 2019 tourist season. Smart charging capabilities provide the VTA with the tools to manage utility load during wireless charging events. Additionally, VTA is installing 250-500 kWh battery storage systems to allow the VTA Maintenance and Operations Center to operate as a micro-grid optimized to charge electric vehicles. As the VTA transitions to a fully-electric bus fleet, on-route charging sites will be added, each of which will operate as an independent micro-grid, supported by energy storage.

Momentum’s charging systems will be retrofitted into the first 10 BYD electric buses in VTA’s fleet. The system has a proven 94% efficiency from utility to battery providing on-route high power charging, critical in converting VTA’s fleet to battery electric buses, said the company. Installed in the roadway, on-route charging allows buses to be recharged multiple times each day during scheduled stops. In as little as five minutes, the buses can receive enough energy to fuel a complete circulation loop.

Momentum 3_IN

“Our platform technology crosses industry boundaries to include automotive, industrial, commercial as well as mass transit. From 50 to 300 kW, our innovative resonant magnetic induction system transfers hundreds of kilowatts of power with high efficiency in any type of weather, noted Daga. The thing that surprises people more than anything else is that resonate magnetic power transfer can be done just as efficiently as conductive charging.

The high-power inductive bus charging system at VTA will become the third installation in North America to operate at over 200 kW. Momentum is currently working to install additional systems in the US and Europe, said Daga. Based in Malvern, PA, the company also performs research and design for the development of custom systems.

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