Picture of a 36,000 square meters solar panel installation, the largest in the world, spread over five hangars at a farm, used as a giant roof in Weinbourg, Eastern France taken on March 4, 2009. The solar panels will yield 4,5 Megawwats a year, which will enable to provide energy for a city of 4,000, said Mr Westphal, a farmer who is behind the project. AFP PHOTO/ FREDERICK FLORIN FREDERICK FLORIN / AFP