Abstract: A wind-power electricity generating apparatus includes a base, a cover and an electricity generating set. The cover is pivotally coupled to a lateral side of the base and can be lifted open or covered onto the base. A wind collecting surface is formed inside the cover, and a penetrating hole penetrating the cover is disposed at the center of the wind collecting surface. The electricity generating set includes a vane wheel and an electricity generator at a side of the vane wheel, and the vane wheel and the electricity generator are foldably disposed in the penetrating hole of the cover. The kinetic energy produced by rotating the vane wheel is used for driving the electricity generator to generate electric energy. The present invention greatly reduces the storage volume and facilitates users to carry the apparatus. In addition, the apparatus of the invention does not occupy much space for its storage.

Abstract: A method for controlling variability in power output of a wind farm supplying power to a grid includes monitoring a power output level of the wind farm. The monitored power output level is compared to a target power output level. A command is issued to increase or decrease electrical power consumption by an electrolyzer system electrically coupled to the wind farm to maintain a net power output level by the wind farm based upon the comparison.

Abstract: Machines useful for wind turbine and ship propulsion purposes include a double-sided generator or motor with two concentric air gaps. In one embodiment, the machine includes a double-sided rotor with an inner rotor side and an outer rotor side; and a stator with an inner stator core and an outer stator core, wherein the double-sided rotor is concentrically disposed between the inner stator core and the outer stator core.

Abstract: An application of low-temperature and solid-state pyroelectric energy converter for converting heat produced from low-temperature operations into electric energy, which utilizes man-made waste heat or waste heat from natural environments for producing changes in materials of specific lattice structures, so as to result potential difference caused anisotropy displacement of centers of positive charges and negative charges along directions of polar axes of the lattices, thereby converting heat energy into electric energy. The application is entirely implemented in an environment having a heat source, and thermal energy is continuously converted into electric energy. Therefore, in order to accomplish energy recycling and energy assisting purposes, the application can be extensively applied in appliances or equipments that produce waste thermal energy.

Abstract: An electronically controlled electrical power generator comprises a generator driven by a heat engine, operated by control means, and carrying an electrical load. Operation of the heat engine is at wide open throttle. Control over engine operation and electrical output of the generator is achieved by electronically manipulating the electric load, and/or adjusting excitation levels at the generator's magnetic fields, so as to change engine/generator equilibrium speed. In a beneficial embodiment, the generator is powered by an energy storage unit, to temporarily act as a motor and rotate the engine when starting, and during power absorbing strokes.

Abstract: A contact assembly of an alternator including an interior chamber, which houses a first end of a rotor shaft having an axis of rotation, first and second bearing assemblies coaxially aligned with the rotor shaft and electrically isolated from one another; and at least one spring member coaxially positioned with respect to the rotor shaft within the chamber. The spring member(s) exerts resistive forces into at least one of the first and second bearing assemblies and support structures within the interior chamber in order to compressively sandwich the first and second bearing assemblies within the interior chamber. The contact assembly may also include capacitors electrically connected to the bearing assemblies.