Wattway by Colas

About

Wattway by Colas is a renewable energy company specializing in Solar.

Wattway is a French innovation developed by Colas that provides discrete, integrated photovoltaic solutions for companies and municipalities. The technology consists of ultra-thin, circular photovoltaic modules installed as an overlay on existing infrastructure including roads, parking areas, bicycle paths, sidewalks, airport runways, and maritime pontoons. The modules produce renewable electricity while allowing vehicle circulation (up to 50 km/h for light and heavy vehicles). Wattway offers two main product lines: Wattway PLUS (grid-connected solutions for on-site energy production) and Wattway PACK (autonomous off-grid solutions for powering equipment without network connection). The system requires minimal civil engineering, no major permits beyond standard planning declarations in most cases, and no environmental impact studies. Module specifications include 476 Wc nominal power, 200 Wc/m², and average efficiency of 20%. Estimated lifespan ranges from 15 to over 25 years depending on usage conditions and maintenance practices. Installations include monitoring platforms, regular maintenance services (preventive and corrective), and technical support.

Products

Certifications & Awards