A turbine assembly includes a shaft having an axis, a single cam with a cam profile and coupled to the shaft, and at least one foil coupled to the cam and having an axis. A variable pitch mechanism is coupled to at least one of the at least one foil or the single cam and is configured to adjust a position of the at least one foil while the at least one foil simultaneously rotates about the shaft. At least one of the shaft, the variable pitch mechanism, and the at least one foil is configured to be automatically actuated in a direction parallel to the axis of the shaft.

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.

An energy conversion system includes a power takeoff system, a fin connected to the power takeoff system, and a control system on board the fin. The fin is submerged below a surface of the sea, and the fin is configured to use subsurface wave motions to extract energy.

A method for controlling wind turbines. Incident signal data is obtained from wind turbines and fed to an artificial intelligence (AI) model in order to identify patterns in the incident signals generated by the wind turbines. One or more actions are associated to the identified patterns, based on identified actions performed by the wind turbines in response to the generated incident signals. During operation of the wind turbines, one or more incident signals from one or more wind turbines are detected and compared to patterns identified by the AI model. In the case that the detected incident signal(s) match(es) at least one of the identified patterns, the wind turbine(s) are controlled by performing the action(s) associated with the matching pattern(s).

A method of handling a wind turbine is provided including a nacelle coupled via a yawing system to a tower for protection against high wind load, the method including: supplying a control signal to a yawing actuator of the yawing system, while the nacelle is in a first orientation; exerting, by the yawing actuator, a torque to the nacelle relative to the tower, thereby turning the nacelle to a second orientation being a downwind orientation.

Method for controlling a wind power plant for generating and delivering electrical energy to an electrical grid (2), the wind power plant (1) comprising a wind turbine (3) configured to be selectively connected to the electrical grid (2), the method comprising controlling the wind turbine (3) among a plurality of operational modes on the basis of different weather conditions.