Louis Gosselin’s research focuses on energy efficiency, particularly in buildings and the industrial sector. In buildings, his work centers on heating, ventilation, air conditioning, and cooling (HVAC-R) systems, building envelopes and fenestration, as well as intelligent system control. Recently, he has explored the energy impacts of occupant behavior, the development of predictive models using artificial intelligence, in-situ monitoring, and the use of bio-based materials. In the industrial sector, his work focuses on process and equipment modeling and optimization, energy data measurement and analysis, and operational and tactical planning to better manage energy and power in the primary aluminum and lumber industries. Louis Gosselin is also interested in the use of renewable energy sources, such as geothermal and solar energy. He is involved in several projects related to the Arctic, including high-performance buildings in the region, the integration of new energy sources, seasonal heat storage, the development of culturally and socially appropriate solutions, and co-design.