Since becoming a partner in the founding of Poly-Énergie inc. in 1987, Claude Routhier has devoted his professional career to the development of energy efficiency in all its forms. Over the past 35 years, his many avant-garde projects have enabled him to acquire extensive field experience in design, project management and commissioning, not to mention the energy monitoring of most of his projects. The expertise thus acquired facilitated the reorientation of the company's mission in 2006 towards sustainable development as a primary objective supported by the use of renewable energy sources.