A subsea energy storage installation comprises a pumped-storage system having pumping and hydropower generation components for, selectively, converting electricity into potential energy by expelling water from within a tank into the surrounding sea and for generating electricity from an incoming flow of water re-entering the tank under hydrostatic pressure. The tank comprises at least one elongate rigid pipeline that may be lowered to the seabed as part of a towable unit or laid on the seabed as a pipe string launched from a surface vessel.

A supercharging system to be mounted in a vehicle including an engine, a driving operator, and an electric power storage unit includes an exhaust turbine, an intake compressor, an electric power converter, and a controller. The exhaust turbine generates electric power. The intake compressor feeds compressed intake air to the engine. The electric power converter supplies electric power from the electric power storage unit and recovers electric power to the electric power storage unit via an electric power path between the exhaust turbine and the intake compressor. The controller acquires a target value of compression power of the intake compressor, based on an operation of the driving operator and an operating state of the engine, and controls the electric power converter such that electric power corresponding to a difference between the acquired target value and the generated electric power is supplied from or recovered to the electric power storage unit.

A hybrid hydroelectric tidal power electricity generator is provided for generation of electrical power using a hybrid system to promote increased efficiency. The hybrid hydroelectric tidal power electricity generator may include a turbine, thruster, thrust pathway, reservoirs and channels. A method for generation of electrical power using a hybrid system to promote increased efficiency using the hybrid hydroelectric tidal power electricity generator is also provided.

A fluid conditioning assembly having a body constructed of an insulating material. An inner housing is configured within the body defining a spiral passageway in communication with an inlet for redirecting a fluid flow through an outlet. A shaft extends within the body and rotatably supports a conductive and fluid redirecting plate or like component positioned within the inner housing. At least one magnet or electromagnet is positioned within the inner housing in proximity to the rotating component, causing thermal conditioning of the fluid flow resulting from creation of high frequency oscillating magnetic fields at a given frequency range, the thermally conditioned fluid flow being redirected through the outlet. Additional features include the ability to generate electricity in a cogeneration application of the assembly. Conventional elements can also be incorporated into the assembly for operating simultaneously or being deactivated/turned off after an initial startup period.

A device (1) is provided for generating electric energy from a pressurized fluid (4) including a stator (2), which includes a tubular body on which a solenoid (21) is wound, and a rotor (3) mobile housed inside the tubular body of the stator (2). The rotor (3) includes a ring-shaped support element (6) and a plurality of hydraulic blades (57) each provided with a respective magnet (5) and mounted on the supporting element (6), integral with it. The rotor (3) is rotated within the tubular body of the stator (2) by the pressurized fluid (4) entering the device (1), so that the magnets (5) of the hydraulic blades (57) generate a magnetic field (22) which induces electric energy in the solenoid (21) of the stator (2).

A power generation system includes an aircraft that includes a propulsor and a platform attached to a structure and configured to support the aircraft. The propulsor is configured to generate electrical power via a wind rotating the propulsor while the aircraft is supported by the platform. A method for using a propulsor of an aircraft to generate electrical power includes positioning the aircraft such that the aircraft is supported by a structure and generating the electrical power via a wind rotating the propulsor while the aircraft is supported by the structure.

A flying object 20 is provided with a rotor blade 200 that generates lift and thrust by rotating and a rotating electrical machine unit that rotates the rotor blade 200. The rotor blade 200 receive wind power and rotate when not flying. The rotating electrical machine unit generates electric power based on a power that rotates the rotor blades 200 when not flying. In addition, the flying object 20 may be provided with a power storage device 230 that stores electric power generated by the rotating electrical machine unit. In addition, the flying object 20 may be provided with a detachably connected cartridge 260 that has a desired function.

It is disclosed a device (1) for generating electric energy from a pressurized fluid (4) comprising a stator (2), which includes a tubular body on which a solenoid (21) is wound, and a rotor (3) mobile housed inside the tubular body of the stator (2). The rotor (3) comprises a ring-shaped support element (6) and a plurality of hydraulic blades (57) each provided with a respective magnet (5) and mounted on the supporting element (6), integral with it. The rotor (3) is rotated within the tubular body of the stator (2) by the pressurized fluid (4) entering the device (1), so that the magnets (5) of the hydraulic blades (57) generate a magnetic field (22) which induces electric energy in the solenoid (21) of the stator (2).

A subsea energy storage installation comprises a pumped-storage system having pumping and hydropower generation components for, selectively, converting electricity into potential energy by expelling water from within a tank into the surrounding sea and for generating electricity from an incoming flow of water re-entering the tank under hydrostatic pressure. The tank comprises at least one elongate rigid pipeline that may he lowered to the seabed as part of a to viable unit or laid on the seabed as a pipe string launched from a surface vessel.

Energy harvesters (EH) which can effectively harvest wasted vibrational/kinematic energy and convert it into electrical energy for battery-free sensor operation are described herein. The energy harvesters can be integrated with a power management circuit and a wireless sensor for monitoring wind turbine blades. The target application of the energy harvesters includes powering the wireless sensors used for wind turbine blade structural monitoring.