Sweden tests road technology that charges electric vehicles

Could roads become, in addition to traffic roads, sources of electric vehicle charging?

Everything points to yes. SmartRoad is being tested on the island of Gotland, Sweden, over a 1.6 km route, with a bus connecting the airport to Visby, the largest city on the island.

The person responsible for the project, Petra Carlenarson, explains that it is a wireless electric road and that, at the same time as the vehicle is being driven, it is being charged.

The process works using dynamic wireless power transfer technology that allows electricity to flow wirelessly from 1.5 meter long copper coils built under the asphalt to three receivers installed under the bus.

The transfer is carried out by inductiona technology used in electric toothbrush chargers, modern stoves and other equipment that we are already used to

Petra Carlenarson explains in a simpler way, that there are “receivers under the bus, and coils under the asphalt. And the road identifies the bus, and when the bus passes over the coils, the road starts transferring energy through the air to the automobile”.

The technology was developed by Israeli company Electronis currently being tested on trucks and buses and may also be available for private electric vehicles.

The company says tests have seen a 40-tonne truck reach speeds of up to 80 kilometers per hour, while receiving an average load of 70 kW from the electrified road.

The Swedish government aims to electrify a total of 2,000 kilometers of roads by 2030as part of the country’s plans to achieve net zero emissions by 2045.

This road is reportedly the first in the world to load larger trucks and buses.

Petra Carlenarson says that “the entire technology facility is invisible” and “when you look at the road, you can’t see anything. The cargo units are underground, which is important for maintenance and safety.”

Alec Arho Havrén, founder of the World Ecological Forum and the GotlandRing test circuit, was involved in trying to bring the technology to the island and recognizes that “we can’t have all the highways in the world, we can’t have these kind of huge capacity requirements. , have superchargers for everyone”, but says: there can be a good balance between static charge and superchargers and then there will be these electric road systems”.

In addition to Sweden, there are similar projects in Israel, Italy and Germany.

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