French roads to generate solar power

France 1,000 kilometers of solar roads to supply five million people with electricity.

The French Solar Energy Institute and the construction company Colas have developed solar cells based on polycrystalline silicon that will be embedded in a substrate which can be applied directly on roads without reducing adhesion. The technology is known as Wattway and 20 square meters solar cells are said to generate electricity for an average household, apart from the heat consumption. The roll-out of the new solar panels are expected to take five years. Similar but much smaller projects have been tested in the USA and in the Netherlands.


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