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TOUROUVRE, FRANCE - OCTOBER 24: In the deburring station Wattway photovoltaic panels are built by SNA Manufacturing, a production company located in Tourouvre in the Orne on October 24, 2016 in Tourouvre, France. By combining road construction and photovoltaic techniques, Wattway pavement provides clean, renewable energy in the form of electricity, while allowing for all types of traffic. (Photo by Frederic Stevens/Getty Images)

TOUROUVRE, FRANCE - OCTOBER 24: In the deburring station Wattway photovoltaic panels are built by SNA Manufacturing, a production company located in Tourouvre in the Orne on October 24, 2016 in Tourouvre, France. By combining road construction and photovoltaic techniques, Wattway pavement provides clean, renewable energy in the form of electricity, while allowing for all types of traffic.  (Photo by Frederic Stevens/Getty Images)