The "Wattway by Colas" road surface-type solar power generation system of Colas (source: Seven-Eleven Japan)
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Seven-Eleven Japan Co Ltd reopened its "Seven-Eleven Chiyoda Niban-cho Store" (Chiyoda-ku, Tokyo) as a model store featuring next-generation technologies Dec 7, 2017.

As a facility to reduce environmental load, Seven-Eleven Japan employed the "Wattway by Colas" road surface-type solar power generation system of Colas, which is affiliated with Bouygues (France-based major construction firm). Solar panels coated with a high-transmittance, high-durability material were embedded in the floor. This is the first time that the system has been employed in Asia, according to Seven-Eleven Japan.

When installed on an area of 100m2, the system is expected to generate about 10,000kWh of electricity, which is equivalent to 7.2% of the average amount of electricity consumed by Seven-Eleven Japan's store in 2013, per year.