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Arcadis has created a digital tool named Arca Sun to optimize feasibility studies for solar photovoltaic projects. Developed by Arnaud Billard, Nicolas Ledoux, and Camille Kapron, this tool has been implemented in approximately ten projects.

Arca Sun centralizes all study phases, enhancing efficiency in assessing solar potential globally. The initiative addresses the disparate methodologies previously employed in feasibility studies. The tool analyzes solar production and self-consumption for all hours of the year, helping meet regulatory requirements such as the obligation for solar installations on large buildings and parking lots.

A partnership with Autodesk provides 3D models of buildings. Arca Sun also evaluates existing structures for load-bearing capacity and factors in environmental influences, such as coastal conditions and urban pollution, which affect maintenance needs and performance under climate change.