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According to the company's FAQ, there is more usable surface in roads than on roofs. Even if it's less power per square meter, it certainly makes a dent.

> The approximately 140,000 km of roads in the Netherlands cover a total area of about 400-500 km2, which is significantly larger than the total (suitable) roof surface area.

The FAQ: http://www.solaroad.nl/en/faq/

(Btw, I wasn't the one who downvoted you.)

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I have yet to see a company that gets 3M€ for what could be done with 10k€ and writing a FAQ where they state they are overpaid ;)

To me this is very questionable marketing non-sense. You take the excellent bicycling culture of the Netherlands, you combine it with solar energy and the result is profit.

Just exchange Wcycling track" with "landfill" and tell everybody you'd cover them for 300 times the normal price with solar panels and you'd be kicked in the balls.

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