The Largest Solar Furnace...
The largest solar furnace is at Odeillo in the Pyrénées-Orientales in France, opened in 1970.
It employs an array of plane mirrors to gather sunlight, reflecting it onto a larger curved mirror.

The largest solar furnace is at Odeillo in the Pyrénées-Orientales in France, opened in 1970.
It employs an array of plane mirrors to gather sunlight, reflecting it onto a larger curved mirror.