From my understanding, gravity would keep the water stream ever accelerating, "generating" more and more kinect energy, which could be transferred endessly to the turbine.
The key point here is that we don't have to spend any energy to transport the water from the floor to the ceiling back...
Let's say there's a wormhole entrance on the floor of my room, and the exit would be on the ceiling. If I drop a ball on it, it would "fall forever". Am I right on this one?
So, if it falls forever, I could throw some water, and use its motion to turn a gear that would generate electricity. In...