Abstract: The ‘hydrokinetic turbine assembly’ is a device for the conversion of the kinetic energy of oscillating tidal currents into rotary torque to generate clean electric power. This device is a horizontal axis hydroturbine with a plurality of trapezoidal symmetrical blades placed at about 45 degrees to the axis. The inclination of the blades assures its maximum energy conversion capacity and the dual reaction function of the turbine where ‘floods and ebbs” are alternatively converted into rotary torque. The inner blade frame, its aerodynamic contour, and at least one connective circumferential blade-ring, add strength buoyancy and sensitivity to slow currents. This hydrokinetic turbine is separated from the electric generators and can be placed in pre-planned current flow locations for greater efficiency.