Created in 2010, Helexia, a Voltalia subsidiary specializing in building energy performance and on-site photovoltaic power generation, has structured its governance under the impetus of CEO Christophe Constant. Two CEOs have been appointed to head the Energy Efficiency Solutions and Photovoltaic business lines: Marie-Yannick Sarrazyn and Jean-Edouard de Salins.
By Benoît Léger
Business ImmoJuly 31, 2025 | 1:55 P.M.
This is a machine translation. Automated translations are intended solely as a convenience and are not legally binding.
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