Disclosed herein are systems and methods for generating electric power from an exhaust wind expelled by an exhaust system having an exhaust outlet. Such systems may comprise, and methods may utilize, a conical framework, a Newtonian turbine, and an electric generator. The conical framework and the Newtonian turbine may be disposed substantially downstream of the exhaust outlet. The Newtonian turbine may be positioned at a first distance from the exhaust outlet, may be substantially concentric with the conical framework, and may be disposed partially or completely within the conical framework. The conical framework may enhance the capture of wind energy by the Newtonian turbine. Thus, a portion of the unused energy from unnatural wind sources can be captured, such as those described herein, and returned to the power grid to enable higher efficiency of machinery operation.

This invention discloses an improved wind turbine suitable for mounting without a wind turbine tower. The wind turbine is based on a rotor with appropriately selected blades. A nozzle and diffuser in the wind flow increase the amount of wind energy available to the rotor. The rotor is interruptibly connected with one or more of a plurality of generators which allows generation at a wide range of wind speeds. The rotor is also interruptibly connected with a co-axial flywheel which allows for storage or use of rotational energy as needed by the availability of wind energy. One or more wind turbines can be grouped together in a common housing. Electricity can also be generated by means of stored energy. The lack of a wind turbine tower and the general compact design allows the wind turbine to be used in close proximity to or on buildings.

This invention discloses an improved wind turbine suitable for mounting without a wind turbine tower. The wind turbine is based on a rotor with appropriately selected blades. A nozzle and diffuser in the wind flow increase the amount of wind energy available to the rotor. One or more wind turbines can be grouped together in a common housing. The lack of a wind turbine tower and the general compact design allows the wind turbine to be used in close proximity to or on buildings.

Systems can be used to harness energy from winds. For example, this document describes scalable systems having multiple wing-like blades that can efficiently convert wind power into electricity and other types of energy.

A vertical axis wind energy power turbine having a hollow shaft on which are attached, rotating and fixed components with outer-surface shapes, fixed vanes, and integral heating to concentrate without confining airflow, an overspin-limiting power-enhancing self-engaging flywheel, and, conversion systems for both, pumped air that may be transferred through hollow mountings to do other work, and, for electricity generation.

A structure adapted to traverse a fluid environment includes an elongate body having a root, a wingtip, a leading edge and a trailing edge; and a plurality of rigid projections each extending from a respective position along the leading edge and/or the trailing edge generally along the same plane as a front surface of the body.

A fluid-redirecting structure includes a rigid body having an upstream end, a downstream end, and an axis of rotation, the rigid body incorporating a plurality of troughs each spiralled from a tip at the upstream end to the downstream end about the axis of rotation, the troughs being splayed with respect to the axis of rotation thereby to, proximate the downstream end, direct incident fluid along the troughs away from the axis of rotation.

This invention discloses an improved wind turbine suitable for mounting without a wind turbine tower. The wind turbine is based on a rotor with appropriately selected blades. A nozzle and diffuser in the wind flow increase the amount of wind energy available to the rotor. The rotor is interruptibly connected with one or more of a plurality of generators which allows generation at a wide range of wind speeds. The rotor is also interruptibly connected with a co-axial flywheel which allows for storage or use of rotational energy as needed by the availability of wind energy. One or more wind turbines can be grouped together in a common housing. Electricity can also be generated by means of stored energy or other motive source. The lack of a wind turbine tower and the general compact design allows the wind turbine to be used in close proximity to or on buildings.

Some embodiments include a mounting system for mounting the device in a fluid, an axle fixed to the mounting system, a solid walled hollow body that rotates about the axle having axial symmetry about a longitudinal axis. The solid walled hollow body may be substantially rounded at the front, expanding to a maximum diameter less than half the distance from the front end to the back end, and tapering radially along the longitudinal axis to the back end. The energy device may further comprise a plurality of blades on the exterior of the hollow body, each blade extending from the front end of the solid walled hollow body to the back end, rising to a maximum height, and having concave and convex walls.

A fluid-redirecting structure includes a rigid body having an upstream end, a downstream end, and an axis of rotation, the rigid body incorporating a plurality of troughs each spiralled from a tip at the upstream end to the downstream end about the axis of rotation, the troughs being splayed with respect to the axis of rotation thereby to, proximate the downstream end, direct incident fluid along the troughs away from the axis of rotation.