Experiment 2: Vortex-based electricity generator

I've actually stolen this idea from someone. All praise and tribute and thanks go to the original inventors. Simply put, this device is intended to extract electricity from a tornado. Here is a picture, so you know what I'm talking about:

The base of the device is some sort of container (the blue dots). It is of circular shape. To the right of the device is a water intake, with a valve (the blue arrow and the black X) so it can be turned on and off at will. In the middle of the base is a rotor (the red thing). The rotor is cone-ish shaped turbine, with helical blades. It is attached to an electromotor, which can be used for two purposes: generating the tornado and extracting power from the tornado. The other arrows represent the flow of cold and warm air.

Now that we understand what this is supposed to be, let's proceed to how it should work. First, a quantity of water is released into the base. The rotor turbine spins and starts forming the air-water tornado. This forms a tornado or vortex. Once the tornado has achieved certain conditions, it will start to "feed itself". The difference in air speed, density and direction of movement should start pressing on the turbine. When that is achieved, the motor that is powering the device is switched into power-generating mode.

A control mechanism is conceivable. It would detect the reduction in vortex power and switch the electromotor back to tornado generating. Once the tornado picks ups enough power, it would then switch it (the electromotor) to power-generating mode.

Please let me know what you think about this. The least you can do is leave a comment :P