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Micropower describes the use of very small electric generators and prime movers or devices to convert heat or motion to electricity, for use close to the generator. [1] The generator is typically integrated with microelectronic devices and produces "several watts of power or less."
This approach allows low speed / low head water turbines to be competitive; they can run at the best speed for extraction of energy, and the power frequency is controlled by the electronics instead of the generator. Very small installations , a few kilowatts or smaller, may generate direct current and charge batteries for peak use times.
Many different versions of engine-generators are available – ranging from very small portable petrol powered sets to large turbine installations. The primary advantage of engine-generators is the ability to independently supply electricity, allowing the units to serve as backup power sources.
A pico hydro system made by the Sustainable Vision project from Baylor University [1]. Pico hydro is a term used for hydroelectric power generation of under 5 kW. These generators have proven to be useful in small, remote communities that require only a small amount of electricity – for example, to power one or two fluorescent light bulbs and a TV or radio in 50 or so homes. [2]
Microgeneration is the small-scale production of heat or electric power from a "low carbon source," as an alternative or supplement to traditional centralized grid-connected power. Microgeneration technologies include small-scale wind turbines , micro hydro , solar PV systems , microbial fuel cells , ground source heat pumps , and micro ...
For these generators, however, corona discharge from exposed metal parts at high potentials and poorer insulation result in smaller voltages. In an electrostatic generator, the rate of charge transported to the high-voltage electrode is very small. After the machine is started, the voltage on the terminal electrode increases until the leakage ...