A floating plate type marine refrigerated container system capable of generating electricity by using wave energy that relates to ocean energy, including a machine room, retractable pipes, vertical rise-fall pipes, vertical connecting rods, floating plates, controllers, a rising-falling control button, an indicator light, push-pull handles, grooves, fixed supports, generator sets, wires, a storage battery, a connecting block, a machine room door, a heat dissipation window, sliding areas, a movable plate, a displacement sensor, hinges, sliding shafts, sliding groove groups and the electrical equipment of the refrigerated container. The wave energy in the vertically moving waves is collected by the floating plate, and converted into electric energy. The electric energy are gathered to the storage battery, and finally supplied to the electrical equipment of the refrigerated container.

A breaking waves power generator includes a platform, a plurality of water wheels rotatably mounted within the platform, and a deck plate mounted within the platform. The water wheels include a plurality of vanes, blades, paddles, or buckets that, when impacted by breaking water waves, cause rotation of the water wheels. Breaking water waves can travel over the deck plate. The deck plate has an angular position and horizontal position relative to the platform that are adjustable to guide the breaking water waves so that the water waves break against the vanes, blades, paddles, or buckets of the water wheels, causing rotation of the water wheels from which power is generated. A ramp is connected to the platform in front of the water wheels, over which water is guided to the platform so that water waves break against the water wheels.

Methods and systems for raising deep ocean water include pumping a quantity of fluid through at least one hose. At least one turbine is driven with the quantity of fluid pumped through at least one hose. At least one pump is driven with the at least one turbine. A second quantity of fluid is sucked into the at least one pump and driven through at least a second hose.

A system and method for producing compressed air from ocean waves. The system includes an enclosing frame having a base anchored to an ocean floor with two or more columns extending upward from the base to above the ocean surface and a platform at an upper end of the columns. A float is located in the frame between the columns so that the float is confined to go up and down. The float is placed on the ocean surface within the frame and goes up and down with the ocean waves. One or more pumps are located on the platform with the hammer head that can be raised and lowered to produce compressed air with the pumps. The hammer head is connected to the float with two or more elongated shafts so that the hammer head is raised and lowered by the ocean waves and produces compressed air.

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.

A submergible wave energy converter and method for using the same are described. Such a wave energy converter may be used for deep water operations. In one embodiment, the wave energy converter apparatus comprises an absorber having a body with an upper surface and a bottom surface and at least one power take-off (PTO) unit coupled to the absorber and configured to displace movement of the absorber body relative to a reference, where the power take-off unit is operable to perform motion energy conversion based on displacement of the absorber body relative to the reference in response to wave excitation, and where the power take-off unit is operable to return the absorber body from a displaced position to a predefined equilibrium position and to provide a force acting on the absorber body for energy extraction.

A breaking waves power generator includes a platform, a plurality of water wheels rotatably mounted within the platform, and a deck plate mounted within the platform. The water wheels include a plurality of vanes, blades, paddles, or buckets that, when impacted by breaking water waves, cause rotation of the water wheels. Breaking water waves can travel over the deck plate. The deck plate has an angular position and horizontal position relative to the platform that are adjustable to guide the breaking water waves so that the water waves break against the vanes, blades, paddles, or buckets of the water wheels, causing rotation of the water wheels from which power is generated. A ramp is connected to the platform in front of the water wheels, over which water is guided to the platform so that water waves break against the water wheels. Two vertical walls are attached to sides of the ramp, the vertical walls extending upwards from the ramp through a surface of the water. At least one ballast tank has an interior space into which water can be pumped to assist with angular lower of the ramp or out of which water can be pumped to assist with angular raising of the ramp. The deck plate is positioned underneath the water wheels. The water wheels have a radius greater than a maximum height of the breaking water waves, an axis of the water wheels being higher than the maximum height of the breaking water waves.

A wave power generation device comprises a floating energy harvester (1), a plurality of energy conversion levers (2) and a plurality of energy transferring rods (3) suspended around the floating energy harvester (1); one end of the energy transferring rod (3) is connected to the floating energy harvester (1), and the other end is sleeved onto the lower end of the energy conversion lever (2); the energy transferring rod (3) transfers energy harvested from a horizontal movement of a wave by the floating energy harvester to the energy conversion lever (2), and follows the vertical motion of the energy conversion lever (2) as the surface of the sea rises and falls; an upper end of the energy conversion lever (2) is connected to a first working mechanism (102), and a lower end of the energy conversion lever (2) is submerged in seawater.

The invention provides an underwater energy storage system (UW-ES system) comprising a reservoir structure (5), which is resting at the bottom (4) of a waterbody (1), such as a sea, an ocean, a waterway, etc. The reservoir structure has a pressurizing reservoir (7A, 7B) with a deformable wall structure (17A, 17B) and a depressurizing reservoir (8A, 8B) with a rigid wall structure (6, 14, 18A, 18B), which are holding a working liquid (9) separated from the water (2) of the water body. Energy is stored and retrieved by displacing part of the working liquid from the depressurizing reservoir into the pressurizing reservoir, and vice versa, respectively. Therein use is made of the hydrostatic pressure of the water (2) acting on the deformable wall structure of the pressurizing reservoir. The UW-ES system is compact and economical, and allows for highly synergistical integration with various power take-off systems.

A sea wave power plant for generating electricity, and for supplying high pressure fluids to a water purification system. The power plant includes two compartments adjustable differential hydro cylinders that are assembled on floaters, an axial piston variable motor, a system for protecting the floaters in periods of storm in a way that the floater are positioned horizontally outside the water, and an automation sub-system. The wave power plant is combined of several modular units that each one of them serves as independent sea water power plan.