Electric road
Road which supplies electric power to vehicles travelling on it / From Wikipedia, the free encyclopedia
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An electric road, eroad, or electric road system (ERS) is a road which supplies electric power to vehicles travelling on it. Common implementations are overhead power lines above the road and ground-level power supply through conductive rails or inductive coils embedded in the road. Overhead power lines are limited to commercial vehicles while ground-level power can be used by any vehicle, which allows for public charging through power metering and billing systems. Of the three systems, ground-level conductive rails are estimated to be the most cost-effective.[1]: 10–11
Korea was the first to implement an induction-based public electric road with a commercial bus line in 2013 after testing an experimental shuttle service in 2009,[2]: 11–18 but it was shut down due to aging infrastructure amidst controversy over the continued public funding of the technology. Sweden has been performing assessments of various electric road technologies since 2013 under the Swedish Transport Administration electric road program.[3]: 5 France began testing ground level power supply and inductive coil electric roads in 2023, and dismissed overhead lines as too expensive.[4]
Terms like "electric highway" may also be used to describe regular roads fitted with charging stations at regular intervals.[5]