An apparatus for generating offshore wind employs shallow draft floats supporting a lattice tower with a wide base having a single-line anchoring providing passive yawing. The lattice structure supports a horizontal shaft at both ends of the shaft for rotating a rotor assembly. Mechanical energy from the rotor may be transferred to electrical generation equipment located at the base of the structure.

The invention relates to a floatable wind turbine (1), comprising: a rotor (2), a generator (3) driven by the rotor, a nacelle (4) housing the generator, a floatable foundation (5), a mast section (6), electrolysis equipment (9) for producing hydrogen from a water mass (10) upon which the floatable foundation is floating during use, water treatment equipment (11) for preparing water from the water mass for use in the electrolysis equipment, and one or more storage vessels (12) for storing the hydrogen, arranged below a waterline (13) of the water mass for providing buoyancy to the floatable wind turbine, wherein a storage pressure of the hydrogen in the one or more storage vessels is 2-30 bar.

A method for assembling a floating offshore wind farm, including: arranging at least N floating structures on a body of water; providing mast sections for assembling at least N masts; providing turbines and blades for at least N wind turbines; selecting at least one floating structure referred to as the mounting floating structure, the other floating structures being receiving floating structures; fastening a lifting device to the mounting floating structure; moving the mounting floating structure up to a receiving floating structure, and using the lifting device to lift and mount at least one constituent element of a wind turbine on the receiving floating structure; repeating the preceding step for the other receiving floating structures.

A mooring system includes a floater, a first anchor, a first mooring line, and a second mooring line. The first mooring line and the second mooring line are each connected to the first anchor and extend to the floater. The first mooring line is connected to the floater at a first connection point. The second mooring line is connected to the floater at a second connection point. The first connection point is spaced apart from the second connection point.

A mooring system includes a floater, a first anchor, a first mooring line, and a second mooring line. The first mooring line and the second mooring line are each connected to the first anchor and extend to the floater. The first mooring line is connected to the floater at a first connection point. The second mooring line is connected to the floater at a second connection point. The first connection point is spaced apart from the second connection point.

There provides an auxiliary structure for floating and sinking the whole offshore wind turbine with suction bucket foundation(s), which includes an upper bracket floated on water and a lower bracket sunk synchronously with a support structure. The upper bracket includes upper floating boxes; upper cross-connectors each of which is fixedly connected to the upper hoop and a corresponding upper floating box; and an upper hoop configured to sleeve on an outer side of the support structure. The upper bracket and the support structure are relatively moved in an up and down direction, and are connected in a manner of limiting position. The lower bracket includes lower floating boxes, a bottom of each of which is adjustable in height; lower cross-connectors each of which is fixedly connected to the lower hoop and a corresponding lower floating box; and a lower hoop that holds the support structure tightly.

A base supporting an offshore wind power generator includes a fender portion composed of a pair of cylindrically shaped first fender portion and second fender portion for cushioning an impact when a ship touches the fender portion, and rung portions extending horizontally from the fender portion toward the base and composed of first rung portions and second rung portions installed at predetermined intervals in the vertical direction. A worker on board the ship can safely transfer to the adjacent rung portions when the hull of the ship kept touching the fender portion.

A floating body (4) for a spar-type offshore wind power generation facility floating sideways is raised by injecting ballast water at sea, by steps including a first step of decentering a center of gravity of the floating body for the spar-type offshore wind power generation facility by means of a center-of-gravity decentering device, and a second step of injecting the ballast water to raise upright the floating body for the spar-type offshore wind power generation facility. The center-of-gravity decentering device may be a weight (2) attached to an outer surface of the floating body, or a solid ballast (34) introduced in the floating body.

The present invention relates to a vertical axis multi-stage wind turbine generator in which multiple stages are provided in a vertical axis to construct a plurality of power generating devices in one power generation facility so that backwind power is enhanced to the maximum, and headwind power is minimized to achieve an economical and efficient power generation function.

An apparatus for aligning flow entering a turbine rotor, and for straightening flow in the wake of a turbine rotor, is, in some embodiments, part of a structure that supports a nacelle and a turbine rotor. Neutral airfoil fairings on structural elements upwind of a rotor can mitigate the effect of side gusts and help straighten the flow entering a rotor. Neutral airfoil fairings on structural elements placed downwind of a rotor straighten turbulent flow in a turbine wake and increase the rate at which the wake dissipates. This enables increased energy extraction at the rotor as well as closer spacing of turbines in a field.