Abstract: Mooring system arranged in a body of water for the mooring of multiple surface or semi-submersible vessels or platforms with a artificial seafloor grid designed as a mesh-like structure arranged in a substantially horizontal plane in the body of water. The artificial seafloor grid including means for attachment to said vessel or platform, and is mechanically coupled to the bottom of the sea using anchoring elements.

Abstract: Device for absorption of wave energy, comprising a floating body (2) adapted to move as a result of influence from waves, and energy transmission means transmitting movement of the floating body to a generator, characterized by that it further comprises an immersed vessel (32), the upper part thereof containing gas and lower part thereof containing water, where the interior of the vessel (32) has pressure communication with the surrounding water, so that the volume of the gas in the vessel (32) depends on the pressure surrounding the vessel and thus affects the weight of the vessel (32) and its contents, the vessel (32) having such a connection to the rest of the device that it moves mainly vertically and in anti-phase in relation to the vertical movement of the floating body (2) when waves moves past the device, where the vessel (32) is connected to energy transmitting means for transmitting its movement to a generator.

Abstract: A wave power plant arranged to be placed on or in the sea or a lake in order to produce energy, comprising a fixed or floating structure and at least one floating body (1) that moves vertically relative to the floating structure and is connected to the structure via energy transmission devices (11). The floating body (1) is designed to be held in a fixed position during part of the wave induced motion of the body (1), thus to increase the recovery of energy from the waves. A method is also disclosed, in which the body (1) is held in a fixed position during part of the time it takes for a wave crest or trough to pass the body (1).