An environmentally-friendly airport with renewable energy sources. The environmentally-friendly airport includes a security zone encompassing the land area of the airport, and a plurality of runways across the land area. There are one or more terminals within the security zone encompassing the land area of the airport. Further, a plurality of power generator systems are disposed within the land area for generating renewable, clean energy, and an industrial zone is placed within a boundary formed by the runways.

Disclosed is a combined structure of a fishing net cage and floating wind turbine foundation. The combined structure includes a wind turbine and a polygonal deep-sea fishing net cage floating body. The polygonal deep-sea fishing net cage floating body comprises an upper polygonal floating body frame, a bottom ring beam, and a middle truss structure, and a connecting column disposed between the upper polygonal floating body frame and the bottom ring beam. A connection structure of the wind turbine set is disposed on the upper polygonal floating body frame. The bottom of the polygonal deep-sea fishing cage floating body is provided with an interface connected with a steel cable of a mooring system. A sub-tank capable of providing ballast by loading water and buoyancy is disposed in the polygonal deep-sea fishing net cage floating body.

A power generation and/or storage apparatus comprising a buoyant flywheel, wherein the flywheel is arranged, in use, in contact with a body of liquid for rotation about a substantially vertical axis, an underside of the flywheel comprising a circumferentially extending opening, wherein, in use, gas is trapped within the opening by the surface of the liquid to define an gas cushion for supporting the flywheel.

A plenum resident wind turbine sustainable energy generating system is disclosed. An example embodiment includes: a wind turbine assembly installed in a plenum of a heating, ventilating, and air conditioning (HVAC) unit, the wind turbine assembly including a plurality of blades and a transverse shaft; and a generator coupled to the shaft of the wind turbine assembly.

A plenum resident wind turbine sustainable energy generating system is disclosed. An example embodiment includes: a wind turbine assembly installed in a plenum of a heating, ventilating, and air conditioning (HVAC) unit, the wind turbine assembly including a plurality of blades and a transverse shaft; and a generator coupled to the shaft of the wind turbine assembly.

An example system for harvesting energy from air vehicles thrust operations includes a runway surface for air vehicle takeoff and landing, where the runway surface comprises a door, and where the door is openable to a cavity positioned below the runway surface. A plurality of wind turbine blades is positioned within the cavity, and the plurality of wind turbine blades are rotatable by air flowing into the cavity. The system also includes a generator coupled to the plurality of wind turbine blades such that the generator produces electricity in response to the rotation of the plurality of wind turbine blades.

An example system for harvesting energy from air vehicles thrust operations includes a runway surface for air vehicle takeoff and landing, where the runway surface comprises a door, and where the door is openable to a cavity positioned below the runway surface. A plurality of wind turbine blades is positioned within the cavity, and the plurality of wind turbine blades are rotatable by air flowing into the cavity. The system also includes a generator coupled to the plurality of wind turbine blades such that the generator produces electricity in response to the rotation of the plurality of wind turbine blades.

The present disclosure generally relates to movable offshore platforms for installing wind turbines, and methods of forming the same. The movable offshore platforms are offshore platforms which were previously used in hydrocarbon production, such as jack-up units. The movable offshore platforms may be decommissioned and retrofitted with equipment for installing wind turbines. The movable offshore platforms may be American-made or otherwise Jones Act compliant. Methods of forming the same are also included.

The present disclosure generally relates to movable offshore platforms for installing wind turbines, and methods of forming the same. The movable offshore platforms are offshore platforms which were previously used in hydrocarbon production, such as jack-up units. The movable offshore platforms may be decommissioned and retrofitted with equipment for installing wind turbines. The movable offshore platforms may be American-made or otherwise Jones Act compliant. Methods of forming the same are also included.

A device for communicating and monitoring railway tracks includes a plurality of communicating and monitoring terminals arranged along the tracks. Each of the terminals includes an image-capturing module, a wireless communicating module that allows for communication between the terminals and with a train, and a module for storing electrical power continuously supplying the image-capturing module and the communicating module. Each terminal also includes a power-generating module for supplying the module for storing electrical power. The power generating module recovers energy from the air displaced by the train running over the railway track. The device permits permanent monitoring by capturing images and makes permanent wireless connections available to the trains.