Cythelia

About

Founded in 1994, Cythelia is a private headquartered in La Motte Servolex, France specializing in Solar.

For over 30 years, Cythelia has supported public and private clients in energy transition and renewable energy project development. The company specializes in photovoltaic projects, offering services spanning decision-making support, technical and economic feasibility studies, detailed engineering, project management, and operational audits. Cythelia operates through an ecosystem of partner companies and maintains dedicated research and development divisions focused on innovative software and hardware solutions for energy transition challenges. The company has developed proprietary tools including a high-precision solar potential mapping service (25 cm resolution) covering French rooftops and parking areas. Services include electrical sizing, glint and glare studies, carbon footprint audits, and lifecycle assessments.