An ocean energy collection device is provided. The device includes a first friction assembly, a second friction assembly, and a gravity center adjustment assembly disposed in sequence from outside to inside, and a control and energy storage assembly arranged on the gravity center adjustment assembly. The first friction assembly includes a spherical housing, a first electrode layer, and a first friction layer which are disposed in sequence from outside to inside. The second friction assembly includes a tumbler-shaped shell, a second electrode layer, and a second friction layer which are disposed in sequence from inside to outside. The gravity center adjustment assembly is fixed in the tumbler-shaped shell. The first friction assembly and the second friction assembly can realize electrification by friction. The first electrode layer, the second electrode layer, and the gravity center adjustment assembly are connected with the control and energy storage assembly.

A battery storage and/or a wind turbine including the battery storage. A generator for generation of an electric current. An electric flow path configured for conducting the electric current to an electric grid via a power converter, the power converter. The battery storage electrically connected to the electric flow path, the battery storage comprising a plurality of battery cells, each battery cell comprising at least one battery element and at least two semiconductor switches. A controller is configured for selectively controlling the voltage over the battery storage by controlling the status of the at least two semiconductor switches of a plurality of the battery cells, and thereby whether a current path through the battery storage is bypassing the at least one battery element or passing through the at least one battery element of one or more of the plurality of battery cells.

A battery storage and/or a wind turbine including the battery storage. A generator for generation of an electric current. An electric flow path configured for conducting the electric current to an electric grid via a power converter, the power converter. The battery storage electrically connected to the electric flow path, the battery storage comprising a plurality of battery cells, each battery cell comprising at least one battery element and at least two semiconductor switches. A controller is configured for selectively controlling the voltage over the battery storage by controlling the status of the at least two semiconductor switches of a plurality of the battery cells, and thereby whether a current path through the battery storage is bypassing the at least one battery element or passing through the at least one battery element of one or more of the plurality of battery cells.

An energy production system including a hydraulic turbine system having undesirable electrical power output setpoints and identified safe electrical power output setpoints, an energy storage system, a connection connected to the energy storage system and to an electric machine of the hydraulic turbine system, and further connected to an AC power network, a device for determining the state of charge, a control circuit controlling a transfer of electrical power between the connection and the energy storage system, configured to receive an electrical power setpoint value (Reps) and configured to determine that this received electrical power setpoint value belongs to the undesirable electrical power output setpoint values to generate an electrical power transfer setpoint value (Epts), and an actual electrical power output setpoint value (Aepos) belonging to the safe electrical power output setpoint values, satisfying the relationship Reps=Epts+Aepos.

Automatic wind and photovoltaic energy storage system for generation of uninterrupted electricity and energy autonomy, characterized in that it consists of wind machines (A) and photovoltaic generators (B) combined or independent which operate mechanically or electrically connected suitable compressors (Γ1, Γ2, Γ3, Γ4) that compress air at high pressure while simultaneously removing the heat generated by compression with small heat exchangers (E1, E2, E3, E4), by heating diathermic cooling oil and water stored in separate insulated tanks (H1, H2, H3, Z2) they drive it to an airtight tank-serpentine coil type tank (M), where it exits and after passing through the air flow distributor in each group of high pressure crosses the groups of heat exchangers (θ1) in which the flow flows backwards cooling oil, where its thermal charge is transferred and heats the compressed air before entering the gas turbine and expands to a certain pressure lower and temperature lower the original T2. At this point the compressed air flows coming out of the turbine and reheats in the same way as in the first re-heat, that is, by crossing another set of heat exchangers (02) similar to the first one, but at a lower pressure and re-introducing at the same pressure it exited but at the same temperature as the original Ti. To expanding again to a given pressure corresponding to the next stage according to the thermodynamic analysis. The expansion continues with the intermediate reheats according to the specified stages of the thermodynamic analysis, until after the last reheat in the last stage, inject the quantity of water vapor (steam) stored in a separate insulated tank (Z2) into the flow of compressed air expanding the common fluid (compressed air plus steam) at the same pressure and temperature into the turbine (K), achieving approximately a 20% increase in the overall turbine (K) efficiency. The turbine is equipped, by means of a rotary shaft rotary controller, to be able to modulate the supply of compressed air to the turbine head (K). And since the mass flow rate of compressed air is directly proportional to the electricity produced, the generation of electricity produced is identical to the demand Automatic wind and photovoltaic energy storage system for generation of uninterrupted electricity and energy autonomy, characterized in that it consists of wind machines (A) and photovoltaic generators (B) combined or independent which operate mechanically or electrically connected suitable compressors (IT, Γ2,Γ3,Γ4) that compress air at high pressure while simultaneously removi

A multiphase fluid pressurized hydroelectric power generation system is disclosed. The system comprises a combination of fluids in the liquid and gas phase in contact with each other, a plurality of water reservoirs where at least one is a closeable water reservoir comprising a closeable volume i.e. a confined space where all fluid flow in and out is controlled, and a source of pressurized fluid arranged for supplying pressurized fluid to the at least one closeable water reservoir. A corresponding method is also disclosed.

The invention relates to a device for thermoelectric storage or energy conversion, reducing the complexity, the thermodynamic irreversibilities and the costs of previous solutions.

The device consists of main pressurized tanks (1THERMO) (1TRANSIT), containing the hydraulic fluid (3), the propellant fluid (2), liquid communications (7), equipped with hydroelectric conversion assemblies for pumping (6) or turbining (5) and including heat exchange systems (8COND) (8EVAP).

The device may include mobile physical separations (11) between fluids, hot (15), or cold (16) thermal reserves, secondary tanks (13) equipped with pipes (14).

The device is intended for energy storage, in particular intermittent renewable energies, economical production of Cold and Hot, and net electricity generation exploiting weak thermal sources.

A power generating roof ventilation device for venting a structure and generating an electrical current includes a tube, which is mountable to a roof of a structure so that the tube is in fluidic communication with an interior space of the structure. The tube extends from the roof. A generator is engaged to and is positioned within the tube so that a drive shaft of the generator extends from the tube. A plurality of blades is engaged to the drive shaft. The blades extract energy from air passing over the blades. The drive shaft is rotated and an electrical current is generated by the generator. Simultaneously, air is extracted from the interior space of the structure.

Energy storage system comprising: a first tunnel shaft extending in an upright direction from a ground level to a predetermined underground level; an underground chamber at the predetermined underground level in the first tunnel shaft; a water reservoir is provided at the ground level a second tunnel shaft extending in a lying direction at the predetermined underground level, the second tunnel shaft forming a second water reservoir; at least one pipe extending through the first tunnel shaft interconnecting the first water reservoir and the second water reservoir for enabling water to flow between the ground level and the predetermined underground level; and
at least one electrical pump and at least one electrical turbine operationally connected to the at least one pipe to enable a controlled charging and discharging of the energy storage system by running an upward and a downward flow of water via the pumps and the turbines, respectively.

The present invention discloses a hybrid generator. The hybrid generator according to one embodiment of the present invention includes a housing having an empty space through which a fluid flows; a rotor received inside the housing, rotated by a fluid flowing inside the housing, and having a magnet; and a stator coupled between the housing and the rotor, surrounding the rotor, and having at least one coil. According to the present invention, the rotor includes a rotating shaft having a first blade on the outer circumferential surface thereof, and further includes a second blade detachably coupled to the rotating shaft.