Watteos

About

Founded in 2025, Watteos is a private headquartered in Aix-en-Provence, France with approximately 50-200 employees specializing in Solar, Energy Storage.

Watteos is an independent energy developer and operator focused on deploying renewable energy projects at the territorial level. The company specializes in solar photovoltaic centrals installed on rooftops, parking canopies, lakes, and ground-level sites. Through its partnership with SIREOS (an engineering, construction, and maintenance specialist with 15+ years of experience and 1.7 GWc built), Watteos maintains control over the entire project lifecycle from initiation to decommissioning. The company also develops agrivoltaic solutions that combine agricultural production with renewable energy generation. Services include detection, study, development, financing, and operation of projects for its own account or third parties. Key projects include partnerships with municipalities such as Marseillan (5 MWc target) and Gruissan, with a current pipeline of approximately 900 MWc and 70 MWc of secured projects.

Projects