The Mont-Louis Solar Furnace is an experimental solar thermal energy facility that was built in 1949. It was the first facility of its kind in the world, and was a precursor of the Odeillo Solar Furnace. It provides a thermal power of 50 kW.
The French chemist Félix Trombe and his team made an initial demonstration of a mirror of DCA in Meudon in 1946 to show the possibility of reaching high temperatures very quickly using highly concentrated sunlight. The goal was to melt ore and extract very pure substances to make new and more effective refractory materials.
In order to do further experiments, the first solar furnace was built in Mont-Louis in the Pyrénées-Orientales in 1949.