A system includes first and second dam modules, a power generation unit, and first and second turbine modules. The first dam module can be secured to a foundation of a dam site and redirect a first flow of water. The second dam module can be secured to the first dam module opposite the foundation and redirect a second flow of water. The first turbine module can be secured to the foundation. The second turbine module can be secured to the first turbine module opposite the foundation. The power generation unit includes a turbine to be driven by a third flow of water at least partially including at least one of the first flow of water or the second flow of water. The first turbine module includes a draft tube having an inlet to receive water from the turbine and an outlet to discharge water from the first turbine module.

A hybrid modular power system with smart control includes a housing configured for containing multiple power modules. A smart control subsystem manages and balances electrical power input from multiple power sources, including a photovoltaic solar panel array subsystem, a wind turbine subsystem, a genset and a battery array. A mast mounted on said housing is configured for mounting a wind turbine, telecommunications antennae, or both. A method of providing electrical power includes the steps of installing multiple power modules in a housing and managing multiple power sources with a smart control subsystem.

In one embodiment, a system includes a shipping container holding a frame, and a plurality of assemblies attached to a surface of the frame. Each assembly of the plurality of assemblies includes a generator and a turbine coupled to the generator. The generator is configured to generate electricity in response to rotation of the turbine. One or more walls of the shipping container are removable to remove the frame from within the shipping container.

A linear-motion guiding device is disposed on the wall of the container. The wind turbine includes, at the lower end of the support column, a support-column lower end member capable of being fixed to the linear-motion guiding device. A slider of the linear-motion guiding device is provided with a guide member, and a bolt is inserted through a bolt insertion hole in the support-column lower end member and is screwed into a threaded hole in the guide member. The apparatus includes an attachment guide part including a stepped bolt and a flanged step part, the attachment guide part being configured to guide the support-column lower end member to a position and an attitude in which the bolt insertion hole in the support-column lower end member is aligned with the threaded hole in the guide member when the support-column lower end member is not fixed to the slider.

The invention relates to a wind turbine nacelle (2) configured for mounting on a wind turbine tower (3) and housing a rotor-supporting assembly supporting a rotor, the nacelle further housing a power conversion assembly, the nacelle comprising: a main unit (20, 101) arranged to be connected to the wind turbine tower (3) and housing the rotor-supporting assembly, and at least one auxiliary unit (21, 22, 102) housing an operative component (34, 35, 104) forming part of the power conversion assembly, wherein the main unit (20, 101) and the auxiliary unit (21, 22, 102) are separate units configured to be connected by a unit fixation structure at an interface, and wherein the at least one auxiliary unit has a first height in an assembled configuration and a second height in a transportation configuration, the first height being higher than the second height.

A wind turbine with a switchgear arrangement is described. The wind turbine includes a tower, a rotor supported at an upper end of the tower, a generator, a transformer for increasing the voltage output of the generator prior to supplying a collector grid, and switchgear arranged between the transformer and the collector grid. The switchgear includes a first switching device associated with the transformer, and a second switching device associated with one or more cables connecting the wind turbine to another wind turbine in the collector grid. The first switching device is connected to, but located remotely from, the second switching device.

A wind turbine generator (10) includes a tower (12), a nacelle (14) rotatably mounted to the tower (12), the nacelle having a longitudinal axis and being configured to align the longitudinal axis with the direction of the incoming wind during operation of the wind turbine generator (10), one or more heat-generating components (22) housed in the wind turbine generator (10), and a containerized HVAC module (26) mounted on a roof (31) of the nacelle (14) and operably connected to the one or more heat-generating h components (22) for cooling the heat-generating components (22). The module (26) includes a shipping container (30) having a floor (32), a roof (34), a pair opposed longer side walls (36), a pair of opposed shorter end walls (38), and a longitudinal axis, the longitudinal axis of the shipping container (30) being oriented generally perpendicular to the longitudinal axis of the nacelle (14), the shipping container (30) having at least one heat exchanger (40) therein.

Disclosed are systems, methods, and devices related to fixed and transportable structures and vehicles utilizing the integration of solar and wind technologies for generation of electricity. The system generates electricity using solar panels (and/or solar thermal units) and wind turbines, stores and converts electricity, and can be located in various locations either as fixed or portable embodiments including on land, on water, underwater, air and space and may also be housed in a structure to provide electricity for various facilities and uses.

An energy storage includes a first container including an inner space, a plurality of pressure vessels for compressed air that are stacked in rows inside the inner space of the first container, a tank containing a heat transfer fluid arranged inside the inner space of the first container, a compressor adapted to compress air, and a plurality of pneumatic ducts for compressed air connected to the compressor. The plurality of pneumatic ducts includes a plurality of heat exchangers adapted to enable a heat exchange between compressed air contained in the plurality of pneumatic ducts and heat transfer fluid contained inside the tank. The plurality of pneumatic ducts is connected to the plurality of pressure vessels supplying pressure vessels with compressed air, an electric turbine connected by the plurality of pneumatic ducts with the plurality of pressure vessels supplying compressed air for rotating the electric turbine to generate electric current.

The invention relates to a wind turbine nacelle (2) configured for mounting on a wind turbine tower (3) and housing a rotor-supporting assembly supporting a rotor, the nacelle further housing a power conversion assembly, the nacelle comprising: a main unit (20, 101) arranged to be connected to the wind turbine tower (3) and housing the rotor-supporting assembly, andat least one auxiliary unit (21, 22, 102) housing an operative component (34, 35, 104) forming part of the power conversion assembly, wherein the main unit (20, 101) and the auxiliary unit (21, 22, 102) are separate units configured to be connected by a unit fixation structure at an interface, and wherein the at least one auxiliary unit has a first height in an assembled configuration and a second height in a transportation configuration, the first height being higher than the second height.