Hydrokinetic turbine structure and system

A hydrokinetic turbine system, comprising:

• a lattice support structure disposed in a body of water, said lattice support structure including a plurality of anchoring feet for contacting a floor of said body of water;
• a plurality of docking ports formed in said lattice support structure, each of said plurality of docking ports configured for receipt of one of a plurality of hydrokinetic turbine units;
• each of said plurality of hydrokinetic turbine units having a shroud with a forward entrance portion, a middle portion tapered inwardly with respect to said forward entrance portion, and a rear exit portion;
• a propeller disposed in said middle portion;
• a plurality of rifling vanes formed on an inner surface of shroud in said forward entrance portion;
• a plurality of wires disposed within said lattice support structure that connects each of said plurality of turbine units to shore when disposed in one of said plurality of docking ports.

A hydrokinetic turbine unit, comprising:

• a shroud with a forward entrance portion, a middle portion tapered inwardly with respect to said forward entrance portion, and rear exit portion;
• a propeller disposed in said middle portion of said shroud;
• a plurality of rifling vanes formed on an inner surface of said shroud to induce water entering said forward entrance portion to rotate in a vortex-like fashion;
• and
• a plurality of front pre-spin vanes disposed adjacent said forward entrance portion to also induce rotation of water entering said forward entrance portion and to prevent objects from passing into the forward entrance portion, said plurality of rifling vanes aligned with respect to said plurality of rifling vanes;
• a plurality of rear pre-spin vanes disposed adjacent said rear exit portion of said turbine units;
• and
• a plurality of stabilizers extending from an exterior surface of said shroud that serve to position said forward entrance portion in the direction of current flow.