The Tyson Turbine is a hydropower system that extracts power from the flow of water, as opposed to the fall of water which powers most hydropower systems. It consists of a large propeller mounted below a raft, driving a power system,typically a generator, on top of the raft by belt or gear. The turbine is towed into the middle of a river or stream, where the flow is the fastest, and tied off to shore to keep it there. It requires no local engineering, and can easily be moved to other locations.

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