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.

An oceanographic sensor mooring section for use with standard oceanographic moorings comprising: mooring oceanographic equipment, such as floatation devices and sensors; and a subsurface power generation unit connected to the mooring oceanographic equipment, wherein the mooring section has connective swivels at opposing ends thereof for attachment of the mooring section to standard oceanographic moorings, mooring lines, or mooring anchors, to allow the mooring section to independently orient in the direction of current flow. The subsurface power generation unit comprises a battery and power management/tracking electronics and a rim turbine generating unit that harnesses the power of underwater currents to power any sensors and related electronics equipment.

A remotely-deployed benthic microbial fuel cell is provided, as well as a method for deploying the benthic microbial fuel cell. The remotely-deployed benthic microbial fuel cell has a mooring that includes a base unit, and a plurality of flukes mounted to a perimeter of a bottom portion of the base unit, the plurality of flukes being preconfigured to automatically move from a stored position to a deployed position. The benthic microbial fuel cell includes an anode that is mounted to the bottom portion of the base unit, and isolated from oxygenated water in an anoxic chamber by the plurality of flukes when in the deployed position. The benthic microbial fuel cell further includes a cathode that is attached to the base unit outside the anoxic chamber, where the cathode stays in oxygenated water when the remotely-deployed bottom mooring is deployed.

A turbine comprises a shaft (20), a mass (10) eccentrically mounted for rotation about shaft (20), having its center of gravity at a distance from the shaft (20) and a motion base (15). Motion base (15) rigidly supports the shaft (20), and is configured for moving the shaft (20) in any direction of at least two degrees of movement freedom, except for heave.

A floating vessel-turbine (120), encloses entirely the eccentrically rotating mass (10) and the motion base (15). The turbine converts ocean wave energy into useful energy, very efficiently.

A buoyant hydrodynamic pump is disclosed that can float on a surface of a body of water over which waves tend to pass. The pump incorporates an open-bottomed tube with a constriction. The tube partially encloses a substantial volume of water with which the tube's constriction interacts, creating and/or amplifying oscillations therein in response to wave action. Wave-driven oscillations result in periodic upward ejections of portions of the water inside the tube that can be collected in a reservoir that is at least partially positioned above the mean water level of the body of water, or pressurized by compressed air or gas, or both. Water within such a reservoir may return to the body of water via a turbine, thereby generating electrical power (making the device a wave engine), or else the device's pumping action can be used for other purposes such as water circulation, propulsion, or cloud seeding.

The floating apparatus for wave power generation according to the present invention includes; a floating unit floating on a sea surface; an energy unit configured to convert a kinetic energy of the floating unit to an electric or hydraulic energy; and a transfer unit configured to transfer the kinetic energy of the floating unit to the energy unit.

A method for manufacturing a floating foundation for a wind turbine, wherein the floating foundation comprises load carrying structures and a plurality of air pontoons attached to the load carrying structures, is disclosed. The method includes cutting one or more fiber-reinforced composite structures, such as wind turbine blades, into a plurality of smaller pieces comprising fiber-reinforced composite, molding the air pontoons from the smaller pieces, and attaching the air pontoons to the load carrying structures.

A method for installing an offshore installation is provided, the method including: a) providing a pipe for connecting the offshore installation with another offshore installation or an onshore installation; b) arranging an electrical cable inside the pipe; c) determining a level at or above the seabed, wherein the pipe includes a first portion arranged below the determined level and a second portion arranged above the determined level, and wherein the electrical cable is arranged inside the pipe so as to form a gap with an inner wall of the pipe along the first and second portion; d) determining an amount of cooling liquid such that, when the cooling liquid has a first temperature, the cooling liquid fills the gap along the first portion of the pipe, wherein the second portion of the pipe is free of the cooling liquid, and when the cooling liquid cools the electrical cable.

An ocean tidal current energy power generating system, including a fixing mechanism, an ocean tidal current energy power generator set and a signal monitoring mechanism. The fixing mechanism includes floating bodies, fixing rods, horizontal supporting rods, and a working platform; the floating bodies are fixed to seabed by means of anchor chains; the fixing rods are fixed to the floating bodies; the horizontal supporting rods and the working platform are respectively fixed to underwater portions of the fixing rods and overwater portions of the fixing rods. The power generator set includes underwater assemblies and an overwater assembly. Each underwater assembly includes blades, a hub, a main shaft, a gear box, a coupling, a power generator, a stern cabin and a yawing mechanism, successively connected to each other; a variable pitch mechanism is disposed in the hub.

A wave electricity generator system includes a water craft, a reinforcement beam mounted to a bottom of the watercraft, a power generating unit and a leverage assembly. The leverage assembly includes a connection unit disposed on the watercraft, and a lever 62 connected to the power generating unit and the connection unit. The connection unit includes a rope retaining seat, a rope and a protective pad. The rope retaining seat is disposed above the watercraft and connected to the lever. The rope is disposed around the watercraft, threads through the reinforcement beam, and is connected to the rope retaining seat. The protective pad is disposed between the reinforcement beam and the rope.