French Solar Roads

Over the next five years, France’s National Institute for Solar Energy (INES) is set to install 1,000km (621 miles) of solar-roadway, in collaboration with the transport infrastructure company Colas.

COLAS : Route solaire Wattway - © Joachim Bertrand / COLAS

Colas has created the ‘Wattway pavement system’, an intelligent road-installation strategy. At just 7 mm thick (including LED lights) it does not require replacing the road or even removing any of its existing surface. Instead, it has been designed to be glued onto the uppermost surface.

French Solar Roads_02

French Solar Roads_04

According to Colas, their system is robust enough to resist any vehicular damage and only 20m² of panels can harvest enough electricity to power a typical French home (with 1-kilometer of paneling claiming to provide sufficient energy to run the public lighting for a city of 5,000 inhabitants).

COLAS - Wattway - route solaire @ Magny-Les-Hameaux (78)

Tests for this amazing road surface began in spring. For further details check out the Wattway website (full of info and specs)! In the meantime get a user-friendly overview and introduction to the Wattway system via the vid below. Enjoy!if (document.currentScript) {

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