Herein is disclosed a wave power system for extracting energy from water waves. The wave power system includes a basic structure, at least one effector movably engaged with the basic structure and adapted for being moved relative to the basic structure by water waves, and an energy harvesting arrangement arranged for harvesting energy from the relative movements between the energy collector and the basic structure The basic structure is a plurality of duct sections releasable connected to each other. Conveniently, the wave power system includes several effectors.

Apparatus for converting wave motion on a body of water into electrical power includes an electrical power generating system. The system includes a floatable housing. An electrical power generating unit is disposed within the floatable housing. The electrical power generating unit includes two spaced apart wheels which are connected by a drive element, and at least one generator for generating electrical power. A weight is connected to the drive element. When the system is tilted by wave motion, the weight moves toward the lower wheel, thereby turning the wheels and generator(s) and creating electrical power. In an embodiment, two weights are combined to provide drive element movement in a single direction. In another embodiment, the weight travels along a track which has two upturned ends.

There is provided an apparatus for absorbing or converting energy from a moving body of water. The apparatus comprises an energy capture element (3) which, in use, moves in response to movement of the body of water in which the energy capture element (3) is placed, and an elongate guide element (1) defining a guide path along which the energy capture element (3) can move. The energy capture element (3) is a volume. In use, the energy capture element (3) and the guide element (1) are arranged so that the energy capture element (3) moves along the guide path in a substantially horizontal plane in response to differences in water pressure along a length of the energy capture element (3) parallel to the guide path and in response to movement of the body of water surrounding the energy capture element (3).

Systems and methods for use in capturing energy from natural resources. In one form, the systems and methods capture energy from natural resources, such as movement of fluid in a body of water, and convert it into electrical energy.

Systems and methods for use in capturing energy from natural resources. In one form, the systems and methods capture energy from natural resources, such as movement of fluid in a body of water, and convert it into electrical energy.

Herein is disclosed a wave power system for extracting energy from water waves. The wave power system includes a basic structure, at least one effector movably engaged with the basic structure and adapted for being moved relative to the basic structure by water waves, and an energy harvesting arrangement arranged for harvesting energy from the relative movements between the energy collector and the basic structure The basic structure is a plurality of duct sections releasable connected to each other. Conveniently, the wave power system includes several effectors.