Viganella Italy
In November 2006 the town set up a giant, computer controlled mirror on the mountainside, a sheet of steel 8 m wide and 5 m high, in order that the village, located in a narrow valley, would get direct sunlight in the middle of winter.
http://en.wikipedia.org/wiki/Viganella
... the hamlet will no longer have to suffer from a complete absence of direct sunlight for 83 days a year, from November 11 to February 2.
http://www.timesonline.co.uk/article...449727,00.html
It is now operating.