Abstract: A wave energy capturing device arranged to capture and convert wave energy to useful energy when positioned in an operating mode. The device includes a pivot point and a buoyant wave energy absorber affixed to the pivot point. The device has an operating mode where the device is arranged to capture wave energy. In the operating mode the pivot point is supported above the surface of a body of water and is held substantially stationary relative to wave movement. The buoyant absorber is engaged with the surface of the body of water at an operating location positioned downwave of the pivot point and wherein the absorber is arranged to rotate about the pivot point. The rotation defining a rotation arc of the absorber along which the absorber is arranged to reciprocate in the operating mode. The disclosure aims to provide improved capture of wave energy for conversion to useful energy.

Abstract: A buoyant offshore platform for supporting a renewable energy system having a base portion for submerging below the surface of a body of water, a top portion, at least one mooring line for fixing the platform to a bed of the body of water, and a tensioning means for applying tension to at least one of the mooring lines. The platform further comprises a floating configuration in which the platform is positioned floating on the surface of the body of water. The platform has a deployed configuration in which the base portion is submerged and the top portion remains above the surface of the body of water. In use, the tensioning means is arranged to apply tension to the at least one mooring line fixed between the platform and the bed such that the buoyant offshore platform transitions between the floating configuration and the deployed configuration.

Abstract: A buoyant tension leg platform arranged to support a renewable energy capturing device when the platform is submerged in a body of water. The platform has at least three vertices or lateral extents, at least three of the vertices or lateral extents have a mooring arrangement. The mooring arrangement includes a first mooring line extending between the vertex or lateral extent and a first anchor point in communication with a bed of the body of water. The first mooring line extends at an angle relative to the bed and a second mooring line extending from the vertex or lateral extent to a second anchor point. The second mooring line extends at an angle relative to the bed, such that the mooring arrangement of the corresponding vertex or lateral extent defines a triangle.

Abstract: An offshore renewable energy system mounting platform is provided for positioning a renewable energy converter in a body of water. The platform includes a frame having a first structural member and a second structural member that are positioned adjacent one another at a mating connection and at least one mooring member affixed to the frame at a tethering location which is tethers the frame to a bed of the body of water. Either the first or second structural members comprises a buoyancy and a tension in the mooring member is arranged to counteract the buoyancy to urge the first and second structural members together at the mating connection. The platform may be manufactured as a set of pre-fabricated modular components which are subsequently assembled into the complete platform.

Abstract: A buoyant wave energy capturing device is provided for use in a wave energy conversion (WEC) system, the device comprising: an absorber portion having a physical property linked to a hydrodynamic characteristic of the absorber portion; and wherein the physical property of the absorber portion, and in-turn, the hydrodynamic characteristic of the absorber portion, is arranged to be adjusted. The present invention aims to provide an improved energy capturing member for use in a WEC system which is less susceptible to damage as a result of large wave forces.

Abstract: A wave energy absorber is provided for use with a wave energy converter, the absorber having one or more body portions arranged to engage hydrodynamically with a water flow from waves of a body of water, the one or more body portions having a rotational axis about which the one or more body portions are arranged to rotate. The one or more body portions are asymmetrical about the rotational axis. The present invention aims to provide an improved energy capturing member for use with the wave energy converter which allows a pressure difference to be created by the wave energy absorber that is ultimately converted into useful energy, done using a smaller and lighter structure.

Abstract: A buoyant offshore renewable energy system mounting platform is provided for positioning a renewable energy device in a body of water, the body of water comprising a surface and a bed, the platform comprising a framework, comprising at least three vertexes, and at least one mooring member for positioning the platform relative to the surface and bed of the body of water. Each of the at least three vertexes having at least one buoyancy member. The buoyancy member preferably comprising a plurality of buoyancy units wherein at least one of the buoyancy members comprises a renewable energy device selected from: a renewable energy convertor; a renewable energy harnessing apparatus; a renewable energy processing apparatus; a renewable energy storing apparatus; a renewable energy data capture apparatus; a data storing apparatus.

Abstract: The apparatus described is a buoyant energy converting apparatus for converting energy obtained from renewable ocean energy sources to useful energy, comprising: a wind energy converter; a buoyant platform arranged to support the wind energy converter in a body of water having a surface and a bed; and a connection member, the connection member being positioned between the wind energy converter and the buoyant platform, the buoyant platform comprises an in-use configuration in which the buoyant platform is submerged in the body of water. In the in-use configuration the connection member protrudes through the surface of the body of water such that the wind energy converter is located substantially above the body of water. The apparatus further comprises a wave energy converter. The apparatus aims to provide a device having increased stability in stormy conditions, a more consistent supply of power and improved cost and ease of maintenance.

Abstract: The generator comprises: at least one energy capturing float (2) which is movable in response to wave motion; a reaction member (1) to be positioned below the energy capturing float; connecting lines (4a, 4b,4c,4d) for connecting the at least one energy capturing float to the reaction member and defining a spacing (D3) between the energy capturing float and the reaction member; energy converters (3a,3b,3c,3d) for converting relative movement between the reaction member and at least one respective energy capturing float to useful energy. The generator includes depth setting means such as adjustable lines (8a,8b) connected to auxiliary floats (7a,7b) or adjustable mooring lines (9a,9b 9c,9d) securing the reaction member to the sea bed B for setting the depth (D1) of the reaction member in the sea.

Abstract: A subsurface reaction body arranged for use in apparatus for converting wave motion in a body of water to useful energy is provided. The subsurface reaction body is arranged to be selectively filled with air to a maximum buoyancy configuration and to be filled with water to a minimum buoyancy configuration. The subsurface reaction body has an arrangement of chambers therein to inhibit free flow of water through the reaction body and to define at least one further preset buoyancy configuration between the respective maximum and minimum configuration.

Abstract: The generator comprises a float (1) which is movable in response to wave motion in a body of water, a submersible reaction member (2) of adjustable buoyancy, with at least two buoyancy configurations, connected to the float and arranged to resist movement of the float caused by the wave motion, an energy converter (5) for converting such reciprocal movement to useful energy; and biasing means such as a spring 6 for directionally biasing the reciprocal movement. Displacement of the float relative to the reaction member is permitted and reciprocal movement generated in response to such displacement.

Abstract: The generator comprises a float (1) which is movable in response to wave motion in a body of water, a submersible reaction member (2) of adjustable buoyancy, with at least two buoyancy configurations, connected to the float and arranged to resist movement of the float caused by the wave motion, an energy converter (5) for converting such reciprocal movement to useful energy; and biasing means such as a spring 6 for directionally biasing the reciprocal movement. Displacement of the float relative to the reaction member is permitted and reciprocal movement generated in response to such displacement.