The invention discloses an ocean current power generator disposed in the ocean. The ocean current power generator includes two power generators, a foil floating member and a control unit. Each of the power generators includes an impeller, and the ocean current drives the impellers to rotate to generate electricity. The foil floating member is connected to the two power generators, and the foil floating member includes a front body and a rear body. The control unit is configured to control the amount of sea water in the front body or the rear body, so as to adjust the center of gravity of the foil floating member.

System for power generation from a flow of fluid, comprising a fluid driven device connected to a tether wherein the tether is coupled with a base station to convert energy from the flow of fluid into transportable energy, wherein the fluid driven device comprises a frame provided with adjustable vanes, and wherein the vanes are adjustable for setting into a predefine position relative to the flow of fluid. The fluid driven device comprises a working mode and a retraction mode, wherein in the working mode the vanes are set in a first predetermined position to generate a lift force from the flow of fluid, and wherein in the retraction mode the vanes are set in a second predetermined position to provide a low drag level to the flow of fluid, and wherein the work performed during working mode is larger than the work supplied during retraction mode.

A system (1) is described for generating electric energy by exploiting wind at a height, comprising at least one ultra-light component of the kite type composed of two or more retractable wing profiles (11, 12) which can be extended or retracted through means placed inside a central housing (13), thereby obtaining both the chance of more easily rising and descending the kite, and the chance of regulating/controlling the working surface of the wing profiles (11, 12) depending on a wind intensity.

A method of using a bagged power generation system comprising windbags and waterbags integrated with drones and adapting drone technologies for harnessing wind and water power to produce electricity. An extremely scalable and environmentally friendly method, system, apparatus, equipment, techniques and ecosystem configured to produce renewable green energy with high productivity and efficiency.

A renewable wind energy system to produce inexpensive electrical power and hydrogen is disclosed. Aerostats, towers, wind energy capture and transmission to ground mounted generators produce electrical power a portion of which is used for electrolysis of water to produce hydrogen and oxygen. Oxygen is sold as a byproduct. The combined system produces inexpensive hydrogen competitive with fossil fuels.

A method of using a bagged power generation system comprising windbags and waterbags integrated with drones and adapting drone technologies for harnessing wind and water power to produce electricity. An extremely scalable and environmentally friendly method, system, apparatus, equipment, techniques and ecosystem configured to produce renewable green energy with high productivity and efficiency.

The invention discloses an ocean current power generator disposed in the ocean. The ocean current power generator includes two power generators, a foil floating member and a control unit. Each of the power generators includes an impeller, and the ocean current drives the impellers to rotate to generate electricity. The foil floating member is connected to the two power generators, and the foil floating member includes a front body and a rear body. The control unit is configured to control the amount of sea water in the front body or the rear body, so as to adjust the center of gravity of the foil floating member.

Tethered unmanned aerial vehicle (TUAV) includes at least one wing fixed to a fuselage. The wing is comprised of an airfoil shaped body capable of producing lift in response to a flow of air across a major wing surface, and can include at least one flight control surface, such as an aileron. One or more buoyancy cell is disposed within the fuselage for containing a lighter than air gas to provide positive buoyancy for the TUAV when the TUAV is disposed in air. A tether attachment structure facilitates attachment of the TUAV to a tether which is secured to an attachment point for securing the TUAV to the ground when aloft. A wind-powered generator is integrated with the TUAV and configured to generate electric power in response to the flow of air across the least one wing when the TUAV is aloft.

A method of using a bagged power generation system comprising windbags and waterbags integrated with drones and adapting drone technologies for harnessing wind and water power to produce electricity. An extremely scalable and environmentally friendly method, system, apparatus, equipment, techniques and ecosystem configured to produce renewable green energy with high productivity and efficiency.

System for power generation from a flow of fluid, comprising a fluid driven device connected to a tether wherein the tether is coupled with a base station to convert energy from the flow of fluid into transportable energy, wherein the fluid driven device comprises a frame provided with adjustable vanes, and wherein the vanes are adjustable for setting into a predefine position relative to the flow of fluid. The fluid driven device comprises a working mode and a retraction mode, wherein in the working mode the vanes are set in a first predetermined position to generate a lift force from the flow of fluid, and wherein in the retraction mode the vanes are set in a second predetermined position to provide a low drag level to the flow of fluid, and wherein the work performed during working mode is larger than the work supplied during retraction mode.