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In one implementation, a hydropower module for use in a flowing body of water is described. The module includes an axle and a plurality of paddle fans rotatably coupled to the axle and having a paddle fan rotation. Each paddle fan of the plurality of paddle fans includes a plurality of blades config

In one implementation, a hydropower module for use in a flowing body of water is described. The module includes an axle and a plurality of paddle fans rotatably coupled to the axle and having a paddle fan rotation. Each paddle fan of the plurality of paddle fans includes a plurality of blades configured to be driven by the body of water. The plurality of paddle fans are oriented in an arc wherein the blades of adjacent paddle fans are closer together at a top of the paddle fan rotation than at a bottom of the paddle fan rotation.

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1. A hydropower module for use in a body of water, said module comprising: an axle; anda plurality of paddle fans rotatably coupled to said axle and having a paddle fan rotation, each paddle fan of said plurality of paddle fans comprising a plurality of blades configured to be driven by the body of

1. A hydropower module for use in a body of water, said module comprising: an axle; anda plurality of paddle fans rotatably coupled to said axle and having a paddle fan rotation, each paddle fan of said plurality of paddle fans comprising a plurality of blades configured to be driven by the body of water, wherein said plurality of paddle fans are oriented in an arc wherein said blades of adjacent paddle fans are closer together at a top of the paddle fan rotation than at a bottom of the paddle fan rotation. 2. The module of claim 1, wherein said plurality of paddle fans is substantially located beneath a surface of the body of water. 3. The module of claim 1, wherein said axle comprises a plurality of axle segments. 4. The module of claim 3, wherein each paddle fan further comprises a hub, said plurality of blades coupled to said hub and said hub rotatably coupled to one axle segment of said plurality of axle segments. 5. The module of claim 4, further comprising a torque transfer link coupled between adjacent hubs of adjacent paddle fans. 6. The module of claim 4, wherein each hub comprises a cam slot configured to rotate said plurality of blades between a feathered orientation and an unfeathered orientation. 7. The module of claim 1, further comprising a housing coupled to said axle, said housing comprising a cavity defined therein that is configured to be located at least partially below a surface of the body of water during operation of said module. 8. The module of claim 7, wherein the top of the paddle fan rotation is located within said cavity. 9. The module of claim 7, wherein said housing comprises a front hood comprising a ramped portion configured direct a flow of water toward said plurality of blades. 10. A hydroelectric turbine system for use in a body of water, said system comprising: a hydropower module comprising an axle and a plurality of paddle fans rotatably coupled to said axle and having a paddle fan rotation, each paddle fan of said plurality of paddle fans comprising a plurality of blades configured to be driven by the body of water, wherein said plurality of paddle fans are oriented in an arc wherein said blades of adjacent paddle fans are closer together at a top of the paddle fan rotation than at a bottom of the paddle fan rotation; anda generator operatively coupled to said hydropower module, said generator configured to convert rotational movement of said plurality of paddle fans into electrical power. 11. The system of claim 10, wherein said plurality of blades rotate between a feathered orientation and an unfeathered orientation. 12. The system of claim 10, further comprising a housing coupled to said axle, wherein said housing comprises a cavity defined therein that is configured to be located at least partially below a surface of the body of water during operation of said module. 13. The system of claim 12, wherein the top of the paddle fan rotation is located within said cavity. 14. The system of claim 12, wherein said housing comprises a front hood comprising a ramped portion configured to direct a flow of water toward said plurality of blades. 15. The system of claim 10 wherein said axle comprises a plurality of axle segments, and wherein each paddle fan further comprises a hub, said plurality of blades coupled to said hub and said hub rotatably coupled to one axle segment of said plurality of axle segments. 16. The module of claim 15, further comprising a torque transfer link coupled between adjacent hubs of adjacent paddle fans. 17. A method of manufacturing a hydropower module, the method comprising: forming a housing;coupling an axle to the housing;rotatably coupling a plurality of paddle fans having a paddle fan rotation to the axle, each paddle fan of the plurality of paddle fans comprising a plurality of blades configured to be driven by a flow of water; andorienting the plurality of paddle fans in an arc wherein the blades of adjacent paddle fans are closer together at a top of the paddle fan rotation than at a bottom of the paddle fan rotation. 18. The method of claim 17, wherein said forming a housing further comprises forming a pair of sides configured to deflect marine vessels and/or floating objects away from the hydropower module, and forming a cavity in the housing that is configured to receive the plurality of blades at the top of the paddle fan rotation. 19. The method of claim 17, further comprising coupling a generator to the plurality of paddle fans, the generator configured to convert rotational movement of the plurality of paddle fans into electrical power. 20. The method of claim 17, further comprising rotatably coupling a hub of each paddle fan to the axle, coupling a torque transfer link to adjacent hubs of adjacent paddle fans, and rotatably coupling the plurality of blades of each paddle fan to the hub of the paddle fan, wherein the plurality of blades are rotatable between a feathered orientation and an unfeathered orientation.