A coil regeneration device comprises an electrically conductive coil including a coiled section; a double magnet system including an inner magnet disposed inside and movable within the coiled section and an outer magnet surrounding and movable with respect to the coiled section with matched directional polarity with the inner magnet, wherein the double magnet system is configured to be coupled to a dynamic foreign entity that applies a specific frequency of oscillating motion that translates into corresponding oscillating motion of the outer magnet, which imparts corresponding oscillating motion to the inner magnet, the oscillating motion of the double magnet system relative to the coiled section producing a magnetic field that induces an electrical field in the electrically conductive coil.

There is a desire to be able to generate electrical power from the tides without turbines posing an unacceptable hazard to sea traffic and/or life, and in particular without causing such sea traffic and/or life to alter their behaviour in response to the placement of turbines and/or other structures. According to the present invention, a tunnel (7) is provided at a height substantially between the low tide height and high tide height; a power take-off system (11) is configured to convert movement of water in the tunnel into usable energy. In this way, a tunnel inlet (5) may be placed at a location that does not interfere with shipping and/or the natural environment.

The present invention relates to systems and methods for pumping or removing a fluid from a region within or on top of or in contact with a water or liquid body and applications for said systems and methods. Some embodiments may also relate to anti-fouling or reducing fouling structures like docks.

A tidal power generation and storage system (10) comprises a lagoon (12) and a plurality of reservoirs (14) separating the lagoon from an area of tidal water (16). Each reservoir (14) comprises a seawall (20) surrounding a reservoir chamber (22). The system has a first flow channel (30) in communication between the area of tidal water (16) and the lagoon (12) which directs flow through a turbine (32) to generate electrical power. The system also has a second flow channel (40) to allow communication between two adjacent reservoirs and a third flow channel (90) to allow communication between a reservoir and the first flow channel. The seawall (20) of each reservoir (14) comprises a gravity structure comprising a plurality of layers of a mixture of sand and/or other seabed material with a hydraulic binder. The system can be built using material sourced at the point of construction, and allows storage and pumping of water in the reservoirs (14) and lagoon (12) to maximise the period over which power can be generated.

The present invention relates to systems and methods for pumping or removing a fluid from a region within or on top of or in contact with a water or liquid body and applications for said systems and methods. Some embodiments may also relate to anti-fouling or reducing fouling structures like docks.

The present invention relates to systems and methods for pumping or removing a fluid from a region within or on top of or in contact with a water or liquid body and applications for said systems and methods. Some embodiments may also relate to anti-fouling or reducing fouling structures like docks.

The present invention discloses a ducted bidirectional tidal current power station system, mainly consisting of a bidirectional tidal current power generation device, a dam, an open sea, an inland sea, a duct, and an opening/closing gate. The bidirectional tidal current power generation device is installed in the duct on the bottom of the dam. Openings, respectively communicated with the open sea and the inland sea, are formed at two ends of the duct, and an opening/closing gate is arranged at each of the two openings. By the ducted bidirectional tidal current power station system of the present invention, the cost of marine construction, operation and maintenance of the tidal current power generation device in an open sea area is saved, and the complex structure of the power generation device in the tidal power station and the cost of strict construction of auxiliary devices and runners are avoided.

The present invention relates to systems and methods for pumping or removing a fluid from a region within or on top of or in contact with a water or liquid body and applications for said systems and methods. Some embodiments may be applicable to, for example, inhibiting or preventing growth formation or fouling of structures in liquid environments. Other embodiments may be applicable to, for example, an energy storage device or a tidal power energy generation system.

The present invention relates to systems and methods for pumping or removing a fluid from a region within or on top of or in contact with a water or liquid body and applications for said systems and methods. Some embodiments may be applicable to, for example, inhibiting or preventing growth formation or fouling of structures in liquid environments. Other embodiments may be applicable to, for example, an energy storage device or a tidal power energy generation system.

The present invention relates to systems and methods for pumping or removing a fluid from a region within or on top of or in contact with a water or liquid body and applications for said systems and methods. Some embodiments may be applicable to, for example, inhibiting or preventing growth formation or fouling of structures in liquid environments. Other embodiments may be applicable to, for example, an energy storage device or a tidal power energy generation system.