Qilu Transportation Development Group, a state-owned transport firm operating in Shandong, is completing a 2000 meter solar highway in China.
The road’s composition is made of three distinct layers, with transparent concrete on top protecting the solar panels beneath. The bottom layer is a strip of insulation that will protect the panels from the earth’s elements. Chinese solar inverter firm Growatt has supplied its string inverters for the project.
The Jinan South Ring Expressway creeps into the city and will not only plug into the grid but will also serve as a research prototype, with engineers from Tongji University – who developed the core technology for the project – stressing that in the future this solar-powered stretch of road could actually charge electric vehicles as they drive along it.
Tongji University professor of transportation engineering Zhang Hongchao said that he hopes the solar highway can kickstart the development of a national network of smart roads that would become “mobile solar charging treasures” able to not only power vehicles but also provide pre-emptive technical support, manage driverless fleets and harvest big data to smooth traffic flows.
This project follows on from a 660-square meter solar-powered pavement developed in Jinan earlier this year to test the university’s solar-powered concrete slabs, which boast anti-skid performance and the ability to use some of the electricity gleaned to heat up and thus melt snow and ice before it forms.
The panels cover 5,875 square meters (63,238 square feet).
According to the report from Quartz, the road cost around 3,000 yuan ($458) per sq m, higher than regular streets.
SOURCES- Pv-technology, Techxplore.com, Xinhua, Quartz
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