There’s something wonderfully appealing about the idea of wirelessly charging your electric vehicle (EV) on the very road that you’re driving along. The technology could help ease range anxiety and save you time by reducing the need to stop and recharge on longer journeys. However, while these so-called “electric roads” actually already exist, it could be a very long time before we see them deployed on a meaningful scale, if ever. Plus, how do they even work?
The principle is actually pretty simple. Coils buried under the road surface generate an electromagnetic field that transfers electricity to a receiver fitted to the underside of a moving vehicle. This electricity can then charge the battery. Other systems exist, too, using conductive rails embedded in the road, and overhead wires for specially equipped trucks. An important point is that vehicles need to be specially built to receive power from these roads, so you can’t just drive any EV onto one and expect the battery to begin charging.
The wireless technology isn’t new, either. In 2009, researchers at the Korea Advanced Institute of Science and Technology (KAIST) demonstrated charging from equipment embedded beneath a road. By 2013, specially equipped electric buses were operating on a charging route in the South Korean city of Gumi, and since then, trials have taken place in Sweden, Italy, Germany, Japan, and the U.S., with Detroit opening a short stretch of electrified road as part of an ongoing demonstration project in 2023. Recent examples include a 1.5 km stretch of motorway near Paris that was fitted with wireless charging coils in 2025, and in 2026 researchers in Indiana successfully charged an electric heavy-duty truck traveling at highway speeds. Such projects show that the technology works, albeit in limited real-world settings using compatible prototype vehicles.
Do we really need electric roads?
Before deciding if electric roads are worth installing,
Before deciding if electric roads are worth installing, it’s a good idea to look at the cost of building them. Construction estimates range from $1.8 million to $3.6 million per kilometer, including infrastructure and connection to the electricity grid.
While private motorists with compatible EVs might find electric roads to be extremely convenient, such vehicles aren’t yet widely available to consumers, and investing in the infrastructure solely for their benefit would be hard to justify. After all, many EV drivers can charge their vehicles overnight. While those without access to home charging would gain more from the technology, it seems sensible to invest instead in conventional charging infrastructure, avoiding the expense and traffic disruption that would result from installing the technology beneath existing roads. The real benefit might, however, come with commercial vehicles, particularly autonomous trucks like those being tested in Texas. Trucks and human drivers that travel over long distances have expensive downtime, plus large batteries add weight and reduce the amount of the freight they can carry. Charging while moving would potentially allow for a smaller battery, while autonomous trucks would be able to operate for much longer periods, with stops only needed for loading, unloading, and maintenance.
Electric roads may make the most sense on busy freight corridors and around places like ports, where trucks drive along predictable routes. For electric roads to spread, the technology will need to show that savings from smaller batteries and reduced downtime can outweigh the expense of installing and maintaining the roads. The future of electric roads may therefore lie not in electrifying every highway, but in targeting the routes where they can deliver the greatest benefit.
