A wind-wave-resistant floating offshore photovoltaic device includes a photovoltaic array and a mooring unit; the mooring unit used for limiting the position of the photovoltaic array is arranged on two sides and the head of the photovoltaic array, the photovoltaic array includes a breaking-wave base device arranged on a wave facing face, resonance wave absorbing floating body units arranged in a middle and common floating body units arranged on a wave shielding face, and the whole formed by connecting the plurality of resonance wave absorbing floating body units is connected to the breaking-wave base device by means of rubber ring type connectors.

A wind-wave-resistant floating offshore photovoltaic device includes a photovoltaic array and a mooring unit; the mooring unit used for limiting the position of the photovoltaic array is arranged on two sides and the head of the photovoltaic array, the photovoltaic array includes a breaking-wave base device arranged on a wave facing face, resonance wave absorbing floating body units arranged in a middle and common floating body units arranged on a wave shielding face, and the whole formed by connecting the plurality of resonance wave absorbing floating body units is connected to the breaking-wave base device by means of rubber ring type connectors.

The application relates to a floatable offshore wind turbine with at least one floatable foundation. The floatable foundation includes at least one floating body. The floatable offshore wind turbine includes at least one anchoring arrangement configured to fix the offshore wind turbine to an underwater ground while the offshore wind turbine is in its anchoring state. Further, the floatable offshore wind turbine includes at least one height adjustment device configured to change the vertical distance of the floatable foundation to an underwater ground surface of the underwater ground and/or to a water surface during the anchoring state based on at least one specific meteorological environmental parameter of the offshore wind turbine.

The application relates to a floatable offshore wind turbine with at least one floatable foundation. The floatable foundation includes at least one floating body. The floatable offshore wind turbine includes at least one anchoring arrangement configured to fix the offshore wind turbine to an underwater ground while the offshore wind turbine is in its anchoring state. Further, the floatable offshore wind turbine includes at least one height adjustment device configured to change the vertical distance of the floatable foundation to an underwater ground surface of the underwater ground and/or to a water surface during the anchoring state based on at least one specific meteorological environmental parameter of the offshore wind turbine.

A system for preventing damage to a power cable for electric power transmission to and from and within a floating offshore wind power plant using non-redundant mooring, after failure of a main loadbearing mooring element is described, comprising at least one power cable safety line having the following properties: It is connected to the same two wind turbines as the power cable it is designed to protect. It has an effective length shorter than the power cable it is designed to protect. It has an effective length longer than what is needed to remain largely unstressed when the distance between the floating wind turbines with intact mooring systems is at its maximum. It has a breaking strength being a predetermined fraction of the strength, which the main loadbearing mooring elements are designed for.

A system for preventing damage to a power cable for electric power transmission to and from and within a floating offshore wind power plant using non-redundant mooring, after failure of a main loadbearing mooring element is described, comprising at least one power cable safety line having the following properties: It is connected to the same two wind turbines as the power cable it is designed to protect. It has an effective length shorter than the power cable it is designed to protect. It has an effective length longer than what is needed to remain largely unstressed when the distance between the floating wind turbines with intact mooring systems is at its maximum. It has a breaking strength being a predetermined fraction of the strength, which the main loadbearing mooring elements are designed for.

Disclosed is a mechanical connection device designed for the detachable mechanical connection of the free ends of two offshore lines, advantageously a mooring line and a messenger line. The mechanical connection device includes two modules that are attached to a free end of the offshore lines. The mechanical connection device includes a locking unit that includes an operating member, to operate the locking unit from a locked configuration to an unlocked configuration. The operating member is movable between two positions with a translational degree of freedom parallel to the longitudinal axis of the modules in the assembled state, preferably in a downstream to upstream direction.

Systems, devices and methods enable generation and monitoring of support platform structural conditions in a manner that overcomes drawbacks associated with conventional approaches (e.g., load cells) for generating and monitoring similar operating condition information. In preferred embodiments, such systems, devices and methods utilize fiber optic strain gauges (i.e., fiber optic sensors) in place of (e.g., retrofit/data replacement) or in combination with conventional load cells. The fiber optic sensors are strategically placed at a plurality of locations on one or more support bodies of a support platform. In preferred embodiments, the fiber optic strain gauges are placed in positions within a hull and/or one or more pontoons of an offshore platform. Such positions are selected whereby resulting operating condition data generated by the fiber optic strain gauges suitably replaces data received by conventionally constructed and located load cells of an offshore platform (e.g., a TLP).

Disclosed herein is an array including at least ten wave power converters and at least one marine substation, each wave energy converter including a floating body, a wire, a housing anchored in a seabed or lakebed, the housing including a stator and a seesawing translator. The seesawing translator is connected via the wire to the floating body and each of the at least ten wave power converters is electrically connected to the marine substation. The at least ten wave energy converters are arranged on a symmetric, open, concave line, where a symmetry axis is at least more or less parallel to a primary wave direction and where the marine substation is arranged on the symmetry axis.

An anchor system with a bridle substrate and harness configured to attach to an anchor line. An outer bladder surrounds an inner bladder for coupling on top of the bridle substrate. Water enters the anchor system through a water inlet that feeds directly to the inner bladder and fills that first. Water then overflows from the inner bladder to the outer bladder to fill that second. The inner bladder provides stability and is positioned with a majority of its volume closer to an uphill end of the anchor bladder while the outer bladder is positioned with a majority of its volume closer to a downhill end of the anchor bladder. Reinforcement connectors for each bladder resist deformation of the bladders to resist movement of the anchor bladder while filling.