SolaRoad - an inexhaustible source of green power

Distributed Energy Resources (DERs) are becoming available in the world around us in all forms and shapes. One of the latest is SolaRoad - a pioneering innovation in the field of energy harvesting.
It is a unique concept, which converts sunlight on the road surface into electricity: the road network works as an inexhaustible source of green power.

The dream is that all roads act like solar panels and maybe we could drive our vehicles with the solar power generated by them.
SolaRoad is being developed as prefabricated slabs. It consists of concrete modules of 2.5 by 3.5 meters with a translucent top layer of tempered glass, which is about 1 cm thick.

Underneath the glass are crystalline silicon solar cells.
The top layer has to be translucent for sunlight and repel dirt as much as possible.
At the same time, it must be skid resistant and strong enough in order to realize a safe road surface. This is one of the technical challenges of SolaRoad.

As a pilot, approximately one hundred meters of SolaRoad cycle path were placed along the provincial road N203 near Krommenie, the Netherlands

The first 70 meters were recently built and SolaRoad was officially opened on November 12th 2014, in the near future an additional 30 meters will be added.  It will then remain in service there for a number of years and research will be conducted continuously so the technology can be further developed. 
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BeijingSifang June 2016