The invention relates to a ducted wind turbine having a turbine rotor assembly which extracts kinetic energy from air flowing there past. The rotor assembly includes a plurality of rotor blades having rotor tips at their outermost ends which define a rotor tip sweep circumference. A duct assembly at least partially surrounds said rotor tip sweep circumference and a base platform supports the ducted wind turbine. The duct assembly is mounted on the base platform by way of a weathervane bearing arrangement such that the duct assembly may weathervane around the turbine rotor assembly in response to changes in wind direction. A semi-submersible support platform, wave energy capture apparatus, torsional bearing mechanism and a latticework wind turbine tower associated with the ducted wind turbine are also provided.

The invention relates to a ducted wind turbine having a turbine rotor assembly which extracts kinetic energy from air flowing there past. The rotor assembly includes a plurality of rotor blades having rotor tips at their outermost ends which define a rotor tip sweep circumference. A duct assembly at least partially surrounds said rotor tip sweep circumference and a base platform supports the ducted wind turbine. The duct assembly is mounted on the base platform by way of a weathervane bearing arrangement such that the duct assembly may weathervane around the turbine rotor assembly in response to changes in wind direction. A semi-submersible support platform, wave energy capture apparatus, torsional bearing mechanism and a latticework wind turbine tower associated with the ducted wind turbine are also provided.

A power continuity unit includes a battery pack, a power converter, and a housing assembly. The battery pack includes a plurality of battery cells with monitoring devices that monitor the voltage of the associated battery cell and trim excess voltage. During daytime, the power converter converts a portion of the direct current (DC) power it receives from an alternative energy device into alternating current (AC) power and directs it to a user, while the remainder is stored in the battery pack. During nighttime, the power converter converts DC power it receives from the battery pack into alternating current (AC) power and directs it to the user. The housing assembly provides structural support and protection to the battery pack; its configuration depends on the type of battery cell being used.

A power continuity unit includes a battery pack, a power converter, and a housing assembly. The battery pack includes a plurality of battery cells with monitoring devices that monitor the voltage of the associated battery cell and trim excess voltage. During daytime, the power converter converts a portion of the direct current (DC) power it receives from an alternative energy device into alternating current (AC) power and directs it to a user, while the remainder is stored in the battery pack. During nighttime, the power converter converts DC power it receives from the battery pack into alternating current (AC) power and directs it to the user. The housing assembly provides structural support and protection to the battery pack; its configuration depends on the type of battery cell being used.

A wind power generator includes an air exhaust unit, a generating unit, a rectifier, and a storage battery. The air exhaust unit includes a fan, a wind guide disk, and a base. The fan is provided with a bearing which is connected with a primary gear. A driven gear is connected with a transmission bearing and meshes with the primary gear. The generating unit includes a stator including a plurality of magnetic poles, and a rotor surrounding the stator and provided with a plurality of magnets. The rotor is connected with the transmission bearing. After the fan is rotated, the bearing drives the primary gear which drives the driven gear which drives the transmission bearing which drives and rotates the rotor.

A wind installation comprising a wind turbine (1) and an airborne wind energy system (12, 13), e.g. in the form of a kite (12) or a glider (13) is disclosed. The wind turbine (1) is electrically connected to the power grid via a power transmission line (27). The wind installation further comprises an airborne wind energy system (12, 13), e.g. in the form of a kite (12) or a glider (13), for generating electrical energy. The airborne wind energy system (12, 13) comprising a separate generator is coupled to the wind turbine (1) via a cable (6) and the separate generator is electrically connected to the power transmission line (27).

A wind installation comprising a wind turbine (1) and an airborne wind energy system (12, 13), e.g. in the form of a kite (12) or a glider (13) is disclosed. The wind turbine (1) is electrically connected to the power grid via a power transmission line (27). The wind installation further comprises an airborne wind energy system (12, 13), e.g. in the form of a kite (12) or a glider (13), for generating electrical energy. The airborne wind energy system (12, 13) comprising a separate generator is coupled to the wind turbine (1) via a cable (6) and the separate generator is electrically connected to the power transmission line (27).

An exhaust air energy recovery system configured for efficiently extracting energy from an exhaust stack of a building, duct, mine, server, or the like. The system includes an exhaust stack through which exhaust air moves and a turbine assembly connected to the exhaust stack by one or more legs. The turbine assembly is configured to generate energy from the exhaust air, and the turbine assembly includes a generator configured to convert energy based on the exhaust air; a turbine rotor connected to the generator; and a hub portion interposed between the generator and the lower blade plate.

A renewable-energy power plant including a first structure, a second structure, a first flue, a second flue and a turbine arrangement comprising at least one turbine, wherein the first structure includes a primary fluid inlet and the second structure includes a secondary fluid inlet and a primary fluid outlet, wherein the secondary fluid inlet is connected to the first flue, wherein the primary fluid inlet is located lower than the secondary fluid inlet and the primary fluid outlet is located lower than the secondary fluid inlet, wherein the turbine arrangement is provided inside the second flue, wherein the power plant includes wetting means arranged to discharge an additive fluid to the working fluid passing through the secondary fluid inlet, wherein the turbine arrangement is arranged to generate power due to the working fluid flowing in a downwards direction inside the second flue and passing through the turbine arrangement.

The invention relates to a ducted wind turbine having a turbine rotor assembly which extracts kinetic energy from air flowing there past. The rotor assembly includes a plurality of rotor blades having rotor tips at their outermost ends which define a rotor tip sweep circumference. A duct assembly at least partially surrounds said rotor tip sweep circumference and a base platform supports the ducted wind turbine. The duct assembly is mounted on the base platform by way of a weathervane bearing arrangement such that the duct assembly may weathervane around the turbine rotor assembly in response to changes in wind direction. A semi-submersible support platform, wave energy capture apparatus, torsional bearing mechanism and a latticework wind turbine tower associated with the ducted wind turbine are also provided.