Home Technology Sweden is building an electric road to charge EVs on the go

Sweden is building an electric road to charge EVs on the go

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Sweden is building an electric road to charge EVs on the go

On-the-go charging could accelerate the uptake of electric vehicles
(photo: CC0 Public Domain)

Sweden has emerged as the first country in the world to build a high-tech road capable of charging the batteries of electric vehicles on the move.

A 21-kilometer permanent stretch of intercity track has already been selected, which will be equipped with technology for dynamically recharging electric vehicle (EV) traction batteries on the move.

The innovation is expected to reduce the capacity of traction batteries by 70%, Electrek reported in a report on the project. This could spur growth in the EV fleet, which continues to suffer from relatively short mileage.

In Sweden, there are already four experimental sections with a dynamic recharging system for electric vehicles. But now a large-scale project is unfolding, the likes of which do not exist anywhere else in the world – France, Italy and other countries are only conducting experiments.

The implementation of such projects is hindered by their high cost. For example, Israel’s technology of rolling inductors into asphalt and concrete to wirelessly charge EV batteries costs $650,000 per km, and Sweden’s Scania AB system is even more expensive, up to $2.5 million per km of electrified highway.

The management of the large-scale project in Sweden is entrusted to the local transport administration (Trafikverket). A tender is currently underway for the contractor of the project. No specific charging technology has yet been chosen, but the electrified road is expected to enter service in 2025.

The administration is considering all options – from wired to wireless. These can be overhead cables like trams, rails like in the subway, where electricity is transmitted through a pantograph under the bottom of the car, or inductors for wireless power transmission installed in the track.

The electrified route will be part of the E20 highway between Halsberg and Örebro. It runs between Stockholm in the north, Gothenburg and Malmö in the south and was deliberately chosen because it is a busy commercial transport corridor. There are also the necessary sources of energy.

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