A floating marine platform is provided including a central column, at least three peripheral columns circumferentially around the central column, radially extending beams from the central column that connect the peripheral columns with the central column, and structural members spanning between each adjacent pair of peripheral columns. The structural members are pre-tensioned.

The present invention provides a floater structure. The floater structure is used for bearing the tower of wind turbines, especially for the offshore wind turbines. The floater structure is constructed via a main column, two off columns and a pontoon. The off column is connected to any other main column and the off column via a horizontal bracing, and the pontoon is connected to the main column and the two off columns. The shape of the pontoon is triangle, and three corners of the triangle are round corners, polygon corners, or the combinations thereof.

A support structure for a wind power generation device comprises: a plurality of floats that can float on the surface of water or in the water; a connecting member having one end connected to one of the floats and the other end connected to another of the floats among the plurality of floats; a support platform that is provided between the plurality of floats and supports the bottom end of a tower part of the wind power generation device; a linear wire member having one end connected to one of the floats and the other end connected to the support platform; and a support member that is provided on the floats or on the connecting member and supports the tower part, which is supported on the support platform, from a lateral direction while the support member being movable along the axial direction of the tower part.

Methods and systems for operating a stable platform in a far-offshore deep-sea environment. The platform can advantageously be a wind power generation station. A structural framework carries (for example) the wind turbine in an elevated position. Multiple points on the floating structure are connected both to a surface float and to a deep mass (e.g. an enclosed volume of seawater).

Disclosed herein is a buoyant structure for offshore deployment. The buoyant structure comprises a first deck having a first channel through the first deck; a second deck having a second channel through the second deck, wherein the first deck and second deck are coupled to each other and arranged spaced apart from each other; and a plurality of floatable substructures coupled to and around at least one of the first deck and the second deck, the plurality of floatable substructures arranged spaced apart from one another, wherein the first channel and the second channel are aligned to receive at least a portion of a tower of a wind turbine.

A floating metal platform for supporting an offshore installation includes three elongated elements. Each elongated element includes a first elongated member; a second elongated member parallel to the first elongated member; and at least a first buoyancy element connected to the first elongated member and the second elongated member. Each elongated element has a first end and an opposite second end. One of the first end or the second end of each of the elongated elements is connected to one of the first end or the second end of at least one of the other elongated elements. A floating wind turbine includes the floating metal platform; a tower connected to the platform; and a horizontal axis wind turbine connected to the tower.

An offshore structure includes an adjustably buoyant hull including a plurality of vertical columns and a plurality of horizontal pontoons. Each pontoon extends between a pair of the columns. The adjustably buoyant hull is configured to receive a topside. Each column has a central axis, an upper end, and a lower end. Each pontoon has a longitudinal axis, a first end coupled to one of the columns, and a second end coupled to another one of the columns. The offshore structure also includes a foundation assembly attached to a lower end of the hull. The foundation assembly includes a column skirt extending downward from the lower end of each column and a pontoon skirt extending downward from a bottom surface of each pontoon.

A moored floating offshore wind semi-submersible platform with at least three columns characterized in that columns are supported on a T-shaped underwater hull made up of two elongated pontoons, where one pontoon is perpendicular to the other pontoon and a method that allow that the semi-submersible platform is constructed in hull-assemblies and blocks at a first location, transported efficiently to a second location close to the final offshore location where the hull-assemblies and blocks may be assembled quay-side while floating in the water. The platform will support at least one wind turbine on a supporting structure (tower) but may also support two turbines and in the latter case the platform will be moored offshore with a mooring turret to allow the platform to align in a favourable direction to the wind.

A floating substructure made of a steel structure with ballast tanks provides buoyancy and stability to support a wind turbine generator in deep waters. Mooring lines directly attach to the substructure to provide stability. These mooring lines can also be directly anchored to the bed of a body of water, such as a seabed, to control movements. Different types of anchors can be used depending on the soil characteristic of the bed of the body of water.

A floating solar plant supporting photovoltaic panels, resulting from the assembly of structural modules and floating modules on a body of water, forming a network of floating support devices supporting photovoltaic panels. The network including at least: a first row of floating support devices supporting a first row of photovoltaic panels, a second row of floating support devices supporting a second row of photovoltaic panels, and wherein the first row of photovoltaic panels and the second row of photovoltaic panels are spaced apart according to the transverse direction, perpendicular to the longitudinal direction by structural modules, and wherein at least the structural modules ensuring the spacing between the first row of photovoltaic panels and the second row of photovoltaic panels are configured so as to be immersed, at least during the passage of a servicing unit.