French civil engineering group Colas is testing their innovative Wattway technology, which provides clean renewable energy in the form of electricity while also being strong enough to handle all types of traffic. Seven millimeter thick panels are placed on top of the road using a high-performance resin and the power generated by the roads has the potential to be used for highway and transportation infrastructure.
The panels are designed to withstand the natural conditions of the road as well as those caused by cars
The composite perfectly watertight ‘sandwich’ is also designed to adapt to the pavement’s natural thermal expansion. The surface that is in contact with vehicle tires is treated to ensure skid-resistance equivalent to conventional asphalt mixes. Electrical connections can be installed at the edge of the carriageway or in ducts integrated in the panels themselves. Electronic circuit breakers ensure safety.