A hydroelectric generator system includes a rotor is mounted for rotation about its axis on a base, and a plurality of hinged are vanes mounted to and extend radially outward from the rotor. The vanes are designed to open to a fully extended position on the upstream side during a portion of rotation of the rotor and to closed to a nested position during a portion of rotation of the rotor, wherein the flow of water from the upstream side to the downstream side impinges upon the vanes and opens them to the fully extended position to drive the rotor. The rotor or the rotor and vanes may be completely submerged.
展开▼
