This is exactly how large scale solar thermal power stations work. The most common ones use thousands of mirrors around a central tower. The sun bounces off th

This is exactly how large scale solar thermal power stations work. The most common ones use thousands of mirrors around a central tower. The sun bounces off the mirrors and focuses at the top of the tower where there is a tank of water. The water is heated, boils, turns to steam, which turns a steam turbine. Look up BrightSource Ivanpah