A hydraulic power generation motor includes a tubular body (4) including a pair of coupling flanges (12) formed at opposite ends thereof and an impeller housing (8) formed in an intermediate portion thereof, the coupling flanges (12) being connectable to fluid conduits (10) through which fluid flows. An impeller (38) is rotatably installed within the impeller housing (8) of the tubular body (4), the impeller (38) being designed to be rotated by the fluid and operatively connected to a generator (40) for generating an electric power.