Hydroelectric power generation device having pumping function and hydropower generation system having pumping function

摘要

PROBLEM TO BE SOLVED: To provide a hydraulic generating unit having a water-liftable function which is reducible in a size and weight while suppressing an increase of the number of part items, in the unit which performs hydraulic power generation and water lifting.SOLUTION: This hydraulic generating unit 1 comprises: a box body 11 having a first opening 12, a second opening 13, and a water-liftable opening 14; a rotating electric machine 16 arranged in the box body 11; an impeller 161 connected to the rotating electric machine 16; and changeover means 15 which switches the unit to a first state for making the first opening 12 and the second opening 13 communicate with each other, and a second state for making the second opening 13 and the water-liftable opening 14 communicate with each other. Then, the rotating electric machine 16 generates power by the rotation of the impeller 161 connected to the rotating electric machine 16 by a water flow in the first state, and lifts water by rotationally driving the impeller 161 by the feed of power which is generated in the first state to the rotating electric machine 16 in the second state.SELECTED DRAWING: Figure 2