Helexia is a historical player in the energy transition sector. Created in 2010, Helexia is a subsidiary of Voltalia. Helexia specialises in the energy performance of buildings and the production of photovoltaic energy on-site (rooftops and solar carports).

With 415 employees in 10 countries, Helexia has completed nearly 1000 photovoltaic projects with a total capacity of 198 MW in operation. Helexia has supported its commercial, industrial, and agricultural clients in more than 180 energy efficiency projects. It provides continuous energy management for 1000 sites.

The wide range of services offered to its clients includes the definition of an energy strategy adapted to their needs, the design and execution of construction work, and the operation, management, and maintenance of equipment and facilities to achieve their decarbonisation and energy consumption reduction objectives.