What is a Solar Furnace?

In 1947, the French scientist Trumby tried to use the reflector of a military searchlight on a solar melting furnace. In 1952, on the Pyrenees in Montlouis, Trumby built the world's first 75-kilowatt power plant. A large-scale solar smelting furnace, and a wonderful performance of melting high-melting metals for colleagues who came to Montlouis to participate in the solar energy academic society.