A turbine (1) with flow diverter (2) comprises a support frame (25) adapted to be anchored to a fixed or movable structure, an impeller (3) rotatably mounted about a rotation axis (R) to the support frame (25) and having a front inlet section for the flow and a plurality of blades (4, 4′, 4″, . . . ) adapted to move continuously upon the rotation produced by the flow between a pushing position and an advancing position in correspondence of the front section, a main flow diverter (2) adapted to be anchored to the support frame (25) and having a peripheral wall (7) adapted to at least partially blind the front section with respect to the flow auxiliary diverter (13) extending from a first section (14) facing one or more blades (4′) in the advancing position to a second section (15) facing one or more blades (4) in pushing position. The auxiliary diverter (13) comprises a plurality of substantially curvilinear conduits (16) in reciprocal side by side position along a substantially radial direction, each conduit (16) having a first opened end (16′) facing the blades (4′) in the advancing position and a second opened. end (16″, 16′″) placed in correspondence of the conveying duet (8).

The invention provides for a diffuser (1) for a wind turbine (2). The diffuser (1) comprises an inner diffuser element (8) including a number of vanes (4, 5, 6), wherein at least a first vane (4) and a second vane (5) is arranged in continuation of each other. At least the first vane (4) and the second vane (5) are angled in relation to each other to form a curved cross sectional diffuser profile (7) and a free space (10) is arranged between the neighbouring first vane (4) and second vane (5) to enable air flow between the first vane (4) and second vane (5). The diffuser (1) further comprises at least one further diffuser element (9), wherein at least a first further diffuser element (9) of the at least one further diffuser element (9) is arranged in a further element distance (ED) from the inner diffuser element (8) on an outside (13) of the inner diffuser element (8) in radial direction, so that the further diffuser element (9) substantially encircles the inner diffuser element (8) and so that an open flow-channel (24) is established all the way between the inner diffuser element (8) and the at least one further diffuser element (9), wherein the flow-channel (24) enables air flow all the way through the open flow-channel (24) and out into a wake (25) behind the diffuser (1).

Use of diffuser (1) and a wind turbine (2) comprising a diffuser (1) is also disclosed.

A self-propelled, robotic power generating system remains submerged in deep water areas, tethered within steady-state, generally unidirectional sea currents in non-tidal areas for the continuous production of turbine-generated electricity that is transmittable by multipurpose undersea power cable to onshore electric grids. System aspects include a shore-to-system communication means to remotely manage all system functions; a sea current intake consisting of a cone-like, retractable current amplifier to significantly increase the energy density of the currents passing through the amplifier to the turbine; a self propulsion means to move the system to maintain a desirable location within a prescribed area that may be subject to meandering currents; a snorkel-like vertical air conduit for ballast control; a seawater pumping means for ballast control; a retractable marine wildlife protector to cover the sea current intake; and a remotely retractable anchor means to maintain the generating system in a target position for extended time periods.

An ocean water power-generator for generation of renewable energy.

A method and system for generating electrical energy from wind are described. In an example, a method includes capturing wind in an intake on an exterior surface of a structure. The method also includes directing, via a duct, the wind from the intake to a centrifugal fan and, while directing the wind from the intake to the centrifugal fan, compressing and accelerating the wind in the duct. The method further includes receiving, in the centrifugal fan, the wind from the duct and rotating, via the received wind, a fan blade assembly in the centrifugal fan. The method still further includes generating electrical energy, via a generator, based on the rotation of the fan blade assembly.

A rotor 16 is provided, including a vertical rotation axis 12 and at least two rotor blades 18, 20, 22 arranged on the rotation axis 12, wherein at least one rotor blade 18, 20, 22 includes an opening 60 with an openable closure element 62. Due to the design of the rotor blade 18, 20, 22, the rotor 16 has particularly high efficiency.

A wind concentrator turbine generator has an inlet cavity to concentrate a wind flow to a nozzle aperture. One or more turbine fans are oriented within a turbine cavity such that the concentrated find flow is directed at the turbine fans. A generator is coupled to each of the one or more turbine fans. The generator is scalable from discrete power generation requirements to utility scale power generation. Larger scale generators may be connected to deliver electrical power to regional electrical power grids.

Systems, methods, and apparatuses are provided for generating clean energy. A Savonius vertical-axis wind turbine, including a shaft configured to rotate about a first axis, aerofoil blades transversely mounted with respect to the first axis, on the shaft, transversely extending outwards from the shaft to a first distance from the shaft, a generator coupled to the shaft, the generator configured to generate electricity from rotational energy of the shaft when the shaft rotates about the axis; and a first curved wind shield having a semi-circular shape defined by a curvature, each point of the curvature is a fixed second transverse distance from the shaft, the first curved wind shield positioned at the fixed second transverse distance from the rotating shaft, and the curved wind shield is rotatable about the rotating shaft, at the fixed second distance. In some embodiments, the wind shields increase productive wind circulation to the turbine blades.

A system for generating hydrokinetic power from a subcritical channel is disclosed. The system comprises a power channel diverted from the subcritical channel for generating hydrokinetic power by changing one more flow parameters of water, wherein the power channel includes an intake section, one or more slope section, one or more power section and a recovery section, an intake spillway at the intake section of power channel, connecting the subcritical channel with the power channel for enhancing the velocity of water, wherein the intake spillway is designed based on rate of discharge of water to be drawn from the subcritical channel and an array of turbines located in the power channel for generating power using the diverted water from the subcritical channel, wherein the number of turbines are based on the length of the power channel.

A morphing panel mechanism may include a central panel and a side panel, where a first edge of the side panel may be pivotally coupled to a first edge of the central panel. A morphing panel mechanism may further include a guide panel that may be coupled with a first corner of the central panel via a ball joint, where the guide panel may include a first slit. A morphing panel mechanism may further include a flexible panel, where a first edge of the flexible panel may be pivotally coupled with a second edge of the side panel, and a second edge of the flexible panel may be slidably disposed within the slit of the guide panel.