An energy conversion device is disclosed. Some embodiments include a mounting system for mounting the device in a fluid, an axle fixed to the mounting system, a hollow shell that rotates about the axle having axial symmetry about a longitudinal axis. The hollow shell 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 shell, each blade extending from the front end of the hollow shell to the back end, rising to a maximum height, and having concave and convex walls. Other embodiments are described and claimed.

A vertical axis wind turbine system having a vertical mast with one or more turbine units supported thereon. The turbine units are of modular construction for assembly around the foot of the mast; are vertically moveable along the height of the mast by a winch system; and are selectively interlocking with the mast to fix the turbine units in parked positions. The turbine system and each turbine unit includes a network of portals and interior rooms for the passage of personnel through the system, including each turbine unit. The electrical generators, and other sub-components, in the turbine units are of modular construction that permits the selective removal and replacement of component segments, including the transport of component segments through the portals and interior rooms of the turbine system while the turbine units remain supported on the mast. The electrical generators are also selectively convertible between AC generators and DC generators.

A blade for a wind turbine can include an elongated sheet having a root, a tip positioned opposite the root, a leading edge spanning between the root and the tip along a length of the sheet, and a trailing edge positioned opposite the leading edge and spanning between the root and the tip along the length of the sheet. The sheet can be curved such that the root and the tip are curved and a region between the tip and the root is curved. The tip can be twisted relative to the root by a washout angle of 18 degrees. The blade can include high density polyethylene, such as hexene copolymer high density polyethylene. A wind turbine can include a mounting plate and a plurality of turbine blades connected to the mounting plate. In addition, a rotor for a radial flux, permanent magnet alternator can be fabricated from non-magnetic material.

Methods, systems, and devices are disclosed for wave power generation. In one aspect, a wave power generator device includes a stator assembly and a rotor assembly encased within a tube frame. The stator assembly includes an array of inductor coils in a fixed position within a cavity of the tube frame and a plurality of bearings coupled to the tube frame. The rotor assembly includes a turbine rotor having a central hub and peripheral blades coupled to a high inertia annular flywheel that is moveably engaged with the bearings of the stator assembly, and an array of magnets arranged to be evenly spaced and of alternating axial polarity from one another extending from the annular flywheel into the cavity between the array of inductor coils, such that electric currents are produced based on magnetic field interaction of the magnets with the inductor coils during the rotation of the annular flywheel.

A gravity driven hydroelectric system, whereby hydroelectric power is developed from potential energy of dammed water driving a water turbine assembly. The hydroelectric power extracted from the water depends on volume and on a difference in height between a source and an outflow of the water. A penstock delivers the water to the water turbine assembly. The penstock has a housing secured by frame assemblies to a structure. The housing has electromagnetic coils that produce electricity from a rotation of turbine blades having magnets.

A fluid dynamic kinetic energy-based frictionless type generator of a range extender and recharger for an electric vehicle or device and the production of electricity is characterized by converting fluid motion into electric energy. This device uses the drag force acting opposite to the relative motion of objects moving with respect to a surrounding fluid. This force can exist between two fluid layers or a fluid and a solid surface. The device comprises a cylinder covered with paddles, air ducting ramp, permanent magnets, armature winding, charge controller and battery bank. It's a frictionless, high efficiency, brushless generator design that utilizes kinetic energy produced by drag, pressure, friction, fluid resistance, fluid dynamics, aerodynamics, wind, and or motion together with the device itself to create a frictionless brushless generator that will deliver power to the engine directly, the enclosed battery bank or can be diverted to the vehicle battery bank for recharging.

The Barton Float Generator is a device that uses water currents, water waves or water elevation changes to push/pull magnets threw electrical coils to generate electrical energy.

A system for generating power from turbine arrays comprises a plurality of turbines positioned in a turbine array. Each turbine comprises a vertical shaft having an upper portion, a middle portion and a lower portion. The lower portion of the shaft is attached to a base member housing at a top portion thereof utilizing a lower shaft bearing. Thus, the shaft is configured to rotate and move linearly in an axial direction. Each turbine further comprises a turbine head having blades mounted at the upper portion of the shaft utilizing an upper shaft bearing and a first pulley coupled with a gear connected to the middle portion of the shaft. The system further comprises a generator having a second pulley that is engaged with the first pulley utilizing a coupling means. When the shaft rotates, the first and second pulleys turn to actuate the generator thereby generating electrical current.

A lift assisted magnetic power device adapted to convert rotational energy into electrical current, said device comprising: a stand; a rotatable central axis mounted on said stand; a plurality of cylinders having a first extremity attached to said central axis and having a second extremity extending outwardly therefrom; at least one magnet contained within each one of said plurality of cylinders, said magnets being free to move along the cylinder between a first position proximate said first extremity and a second position proximate the second extremity; a coil surrounding each one of the cylinders and arranged in such a way as to be able to generate an electrical current as the at least one magnet passes through the coil; and a connection capable of carrying said electrical current from said coil to a circuit (power grid) or powers source (such as a battery).

An electromagnetic turbine system includes a circulation system for recirculating fluid that drives turbine impellers for electromagnetic turbine modules. The circulation system includes a fluid separator module which separates gas from liquid and circulates the liquid back to a pressure chamber. The liquid in the pressure chamber is propel by compressed gas. Multiple pressure chambers may be controlled to release pressurized fluid to drive their respective shafts on a staggered timing sequence. The turbine modules may be levitated from a supporting surface to reduce friction.