A road covered in a layer of thin solar panels that can help power homes and offices is to be built in the UK next year.
The quarter-inch photovoltaic material can be glued on top of a traditional road surface and is tough enough to withstand lorries driving over it, according to the engineers behind the scheme.
Colas, a subsidiary of the French engineering firm Bouygues, is planning to test its Wattway solar road at up to three trial sites in the UK. One of the locations is likely to be near Cambridge.
In areas with 1,000 hours of sunshine a year, just 12ft of road surface can provide enough electricity to power the lights and electrical appliances of one home. Cambridge averages about 1,500 hours of sunshine a year.
The technology’s inventors suggest harnessing solar power from roads will be a more publicly acceptable way of producing green energy than large solar farms.
“The potential behind this is huge, if you [consider] the number of square kilometres of road that are available for energy instead of building big solar farms in fields,” said Pierre Trotobas, Colas’s development manager. “There is no issue of public acceptance.”