Actually, that is the learning toy "Wind energy" provided as a birthday present. My curiosity drove me but to ever build the wind power plant to sample and test the function .. All parts are only inserted and can be removed completely again. Materials and workmanship to make a good and high-quality impression. The assembly proved to be quite simple and should an interested child of the target group succeed. Only the function is lagging behind. After the instructions, the wings are turning in light winds and so generate electricity. For me, the wings do not rotate, although the necessary conditions are met. When attempting to rotate the wing manually, is also struck me that everything is very stiff.
The reason I have not yet found; I will therefore turn times tomorrow phone's manufacturer. Then I will continue to report ....