Dec 1, 2021 · It is found that the annual power generation of a solar road can reach 150 kWh/m 2 by using the best performance modules and single crystal silicon batteries. In 2016, the world's first solar road “Wattway” was built, which is 1 km long along the rural road of Tulufur in Normandy (Fig. 2 (c)), and costs 5 million euro [65]. Its structure is
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