Electric Road Systems

Electric Road Systems (ERS) is a technology area with immense potential to reduce fossil fuel dependency, reduce greenhouse gas emissions, reduce air pollution as well as reduce noise in urban environments, while increasing energy efficiency in the transport sector.

ERS is defined as a system enabling power transfer from the road to the vehicle while the vehicle is in motion and could be achieved through different power transfer technologies such as rail, overhead line, and wireless solutions.

The implementation of ERS at national and international levels is likely to work together with the application of other solutions for cleaner transportation. There are several ongoing studies and demonstration projects on Electric Road Systems (ERS) around the world which have the aim to explore different techniques for energy transfer and different use cases. The various ERS technologies have different maturity, and each ERS solution has its own advantages and disadvantages.

The electrification of long-haul freight transportation has been the driving force ERS and continues to be the focus for several activities. Road electrification can however be utilized for various kinds of vehicles, e.g. trucks, buses and cars, even though not all types of ERS technologies are suitable for all kinds of vehicles.

An overview of ERS is given in the pages on Power Transfer Concepts, System Overview, Technologies, and Real-World Experience. More information is given in the report Overview of ERS concepts and complementary technologies from the CollERS project, as well from the architecture model developed in the project Research & Innovation Platform for Electric Roads.