content: Your design will create more drag than power, and you don't show how a giant spinning balloon or whatever it is, will generate anything.  It's like showing a propeller not attached to a generator or anything at all.  As a free spinning artwork, it will work.  As a power generating device, it's not even a fully formed concept. If instead, you had the first half of the device with fins going in one direction, and the other half in the other direction, there could be differential torque and a generator could be inside the shape and transmit the power through a tether.  Have you thought this through, or is it just a way for people to give you money for a shower thought?