There are in China building roads using solar panels that will be able to charge the car during the drive. This is already the second project of the solar roadway, which is a part of the Jinan City Expressway and stretches about 1.2. The method of the building includes the stratum of the transparent concrete above the stratum of solar cells.
In September 2016, the company Qilu Transportation Development Group had finished the construction of the first solar panels road project in the same city Jinan. During the building process, which has took 10 months, the road was equipped with 660 sqm of solar panels.
Now it is finished the builiding phase of the second part of the project solar roadways on the expressway in the city Jinan, which length is about 1.6 km. The road the system comprises three stratums. The upper stratum is a transparent concrete that is innovational material, which has structural characteristics of the bitumen. The second stratum contains of solar panels. The lower stratum comprises insulating materials that protect solar panels from the dampness ground below.
The road will be sturdy enough to withstand even large transport, for example, trucks of medium size. Project engineers mentioned that soon they will have the ability to integrate into the roadbed the characteristics of the cordless charging of electric vehicles that will work directly while driving.
More detailed information about what type of solar panels are used, the company does not provide. The road is covered by panels of various sizes. Also, the road is shrouded by the film that protects it from workers who move through the construction process. Furthermore, the panels are linked, as clearly illustrated by the photo.
Although, the idea of the solar roads, that have capability to charge electric cars during the riding process has been criticized, nevertheless, such project is not the only one. The first solar road was built in France in the city Tourouvre-au-Perche that is in Normandy. The coating can hold not only passenger vehicles but trucks. Although the construction of one km section was costed $5.2 million, the French government are planning to increase the range of this project and to cover by solar panels the highway across the country.
The similar plan has an American company, which have already established prototypes of the pavement with solar panels in Sandpoint, Idaho. Modular tiles generate electricity and lead that in winter melt snow and ice.
This method of solar panel using can be quite relevant and widespread in the electric industry, because of using a natural resource, such as solar energy while not producing the exhaust gases.