[ Back to my Lego Sets ] This is my second 'DeskTop Model'. The Windmill is powerd by a 3V solar panel. The solar panel delivers just enough energy to let the windmill move slowly at everage sun light. A 9V technic motor ( 71427c01 ) and some gears are located under the roof. The model was inspired by jbrink44s WindmillBakery. Here is the full gallery: Solar Windmill