Natural energy extraction apparatus

Wave and water energy converter mounted on bridge supports

Turbine array and a method of controlling a turbine array during a loss-of-grid event

Deep ocean current power plant and constructing procedure thereof

Fluid flow energy converter

Floating-type ocean current combination power generation device

Underground watermill

Subsurface intelligent cluster of current energy converters

Water turbine

Multipurpose rotary device and generating system including same

Mooring system

Hydraulic device of reversible type for the conversion of energy

Tidal current power generator

Vertical axis wind and hydraulic turbine with flow control

Fluid energy generator

Dual rotor wind or water turbine

Rotor apparatus

Ribbon transducer and pump apparatuses, methods and systems

Hydroelectric turbine recovery system and a method therefor

Fluidic flow capture and acceleration apparatus for hyper-conversion

Method and apparatus for generating energy from a flowing water current

Power generator

Power generating equipment

Method and apparatus for energy generation

Apparatus for generating electricity

Tidal power generating device

Extracting energy from flowing fluids

Hydroelectricity generating unit capturing marine wave energy and marine current energy

Power generating windbags and waterbags

System and method for converting fluid motion into electrical power

Tidal energy seawater desalination system, power generation system and integral energy utilization system

Dolphin-blade, fluid flow, reciprocal motor

Hydrokinetic electrical generating device

Floating offshore wind turbine

Fin and installation for converting hydraulic-energy comprising such a fin

Portable hydroelectric kinetic energy conversion device

Tidal adjustment arrangement for a wave energy recovery system

Energy conversion from fluid flow

Oscillating foil turbine

Apparatus for extracting energy from a fluid flow

Tunable apparatus for generating energy from a fluid flow induced movement of a surface structure relative to a frame with at least one adjustable frame portion

Device for boat propulsion or energy production

Bluff body turbine and method

Drive apparatus for electricity generating apparatus

Power generator for extracting energy from a liquid flow

Fluid pressure amplifier

Power generation apparatus

Faucet device

System and method of expanding a fluid in a hermetically-sealed casing

Method for operating a machine located in choppy waters

Turbomachinery having self-articulating blades, shutter valve, partial-admission shutters, and/or variable pitch inlet nozzles

Two-bladed vertical axis wind turbines

System for conversion of wave energy into electrical energy

Wind/water turbine with rotational resistance reduced by wind vane blade

System and method for generating electrical power from a flowing current of fluid

Runner for direct-connected low-speed small mixed flow type water turbine applied in hydrodynamic energy-saving cooling tower

Dynamo-electric machine

Apparatus for generating power from fluid flow

Power plant with cassette-type power unit

Rotation blade attachment method for regeneration energy type electric generation apparatus

Systems and methods to generate electricity using a three vane water turbine

Renewable energy extraction device

Foundation structure

Tidal power plant and method for operating said tidal power plant

Unidirectional hydro turbine with enhanced duct, blades and generator

Horizontally oriented wind turbine

Portable swim current generator

Drive device

Generator and bidet comprising the same

Blade for a turbine operating in water

Apparatus for generating energy from a fluid flow induced movement of a surface structure relative to an opening to a cavity in a frame

Turbine for capturing energy from a fluid flow

Lighting system including power conversion using a control signal based on illuminance information from a solar power generator

Subsystems for a water current power generation system

Maritime current power plant park and a method for its production

Hydroelectric turbine cabling system

Method and device for installing a tidal power plant

Floating assembly for generating energy from sea currents

Tidal power plant and method for the creation thereof

Conveying device for producing energy

Water current power generating device

Hydroelectric generator

Water wheel impeller blade type electric power generating apparatus

Adaptive hydrokinetic energy harvesting system

Energy conversion systems and methods

Connector for mounting an underwater power generator

Device for capturing energy from an oscillating drive member

Enhanced method of controlling the output of a hydroelectric turbine generator

Kinetic energy atom-powered engine

Hydrodynamic array with mass transit tunnels

High efficiency waterwheel apparatus having track-type blades and a track-type blade set thereof

Direct-connected low-speed small mixed flow type water turbine applied in hydrodynamic energy-saving cooling tower

Method and apparatus for extracting energy from a fluctuating energy flow from a renewable energy source

Low-drag hydro-pneumatic power cylinder and system

Fluid machine, wind turbine, and method for increasing velocity of internal flow of fluid machine, utilizing unsteady flow

Girder for supporting a tidal turbine fairing and tidal turbine comprising such a girder

Universal spherical turbine with skewed axis of rotation

Manufacture of wind turbine enhancement systems

Hydroelectric in-pipe turbine blades

Rope-conveyer structure for supporting plates of wind or water power generator

Method of installing a hydroelectric turbine generator

Underwater power plant having removable nacelle

Apparatus for generating electricity from a tidal water flow

Apparatus for harvesting energy from a body of water and a method

Rotating apparatus

Device with twin-chamber structure for conversion of wave energy of oscillating water

Turbo-machine with blade wheels

Water turbine having blades containing inflatable elements

Device for the utilisation of wave energy and a method

Apparatus and method for energy extraction

Hydrokinetic energy conversion system

System and method for water expulsion from underwater hydropower plant and hydropower plant associated therewith

Hydro-kinetic transport wheel

Fluid interacting device

Conveyor-type system for generating electricity from water currents

Hydrokinetic turbine structure and system

Turbine engine with transverse-flow hydraulic turbine having reduced total lift force

Water turbine

Fluid turbine

Device for converting kinetic energy of a flowing water into kinetic energy of a rotatable rotor shaft

Method of installing a hydroelectric turbine

System and method for extracting power from fluid using a Tesla-type bladeless turbine

Underwater power plant with passive control

Tidal flow hydroelectric turbine

Parallelogram wave energy collector

System and method for converting energy from water waves

Hydrokinetic power source