Gheddafi capture place

If you see to one of the photo of the Gheddafi's convoy, ambushed by CNT force, you can see a white high building which is at the coordinates: 31°11'13.91"N 16°31'28.26"E; the lower part is on the left of the photo, then the trigger point of this photo is from the north, looking south, exploring the surroundings I found this compound with near the pylons of the electricity grid.