A mooring line that provides substantially constant force, also referred to a mooring line that is always soft, allows the orbital motion of a moored turbine structure under varying wave conditions and is suitable for storm conditions when the turbine is not operating. A mooring line with substantially constant force does not create surge acceleration from heave acceleration and does not cause the turbine structure to be pulled through the water relative to orbital velocity.

There is provided a self-restoring motion compensating mooring system for a floating unit. The mooring system includes a plurality of mooring anchors, a plurality of top fairleads attached near the top edges of the floating unit, a plurality of bottom fairleads attached near bottom edges of the floating unit, a stabilizer, a plurality of mooring cables passing through the respective top and bottom fairleads, connected between the plurality of mooring anchors and the stabilizer. Further, in respective equilibrium positions of the floating unit and the stabilizer, the center of gravity of the stabilizer is located directly below the center of gravity of the floating unit.

There is provided a self-restoring motion compensating mooring system for a floating unit. The mooring system includes a plurality of mooring anchors, a plurality of top fairleads attached near the top edges of the floating unit, a plurality of bottom fairleads attached near bottom edges of the floating unit, a stabilizer, a plurality of mooring cables passing through the respective top and bottom fairleads, connected between the plurality of mooring anchors and the stabilizer. Further, in respective equilibrium positions of the floating unit and the stabilizer, the center of gravity of the stabilizer is located directly below the center of gravity of the floating unit.

An off-shore wind turbine system is assembled using a platform or jack-up vessel, and a first base anchored to the seafloor at a blade assembly off-shore location. A buoyant tower is attached to the first base. A crane provided on the platform or jack-up vessel is used to lift blades and blades, which are then coupled to a turbine held in a nacelle provided at the top of the buoyant tower. The buoyant tower, the nacelle, and the blades are detached from the first base. The buoyant tower, the nacelle, and the blades are towed to a wind farm and connected to a second base provided in the wind farm. The buoyant tower, the nacelle, and the blades are further stabilized using mooring lines spanning between the buoyant towers and other bases provided in the wind farm. The first base and/or the second base include anti-rotation features.

The present invention relate to a water floating-type solar photovoltaic power generator, and more particularly, to a water floating-type solar photovoltaic power generator which is easy to be manufactured by using a plurality of annular floating bodies; is economical; and is further favorable to rotation, the plurality of annular floating bodies consisting of synthetic pipes and being arranged to form a concentric circle on the basis of a main pillar, as a floating source for supporting solar photovoltaic generation equipment on the water.

Yoke mooring systems and processes for using same. The system can include a turntable connected to and rotatable with respect to a base. A yoke can be connected to the turntable such that the yoke can at least partially rotate about a longitudinal axis of the yoke and at least partially rotate about a second axis that can be orthogonal to the longitudinal axis. A first and second link arm can be connected to the yoke and to a first component of a first and a second releasable connector, respectively. A first and second lifting line can be connected to the second end of the first and second link arms, respectively. A first and second lifting device can be disposed on a vessel and configured to be connected to a second end of the first and second lifting lines, respectively, to lift and lower the link arms and the yoke.