There's a Norwegian town that did something similar: During winter the mirror (mounted on a hill) reflects the sun to the town's market square, because otherwis

There's a Norwegian town that did something similar: During winter the mirror (mounted on a hill) reflects the sun to the town's market square, because otherwise there wouldn't be any sunlight due to the sun being too low. https://www.theguardian.com/world/2013/nov/06/rjukan-sun-norway-town-mirrors https://www.theguardian.com/world/2013/nov/06/rjukan-sun-nor...