electricity generation

electricity generation: Encyclopedia - General Electric

The General Electric Company, or GE (NYSE: GE) is a multinational technology and services company. Going into 2005, it was the world's largest corporation in terms of market capitalization ([1]). It should not be confused with The General Electric Company plc, which was renamed Marconi plc in 1999. In the 1960s, peculiarities in U.S. tax laws and accounting practices made it fashionable to assemble conglomerates. GE, which was a conglomerate long before the term was coined, is one of the very few corporations to a ...

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electricity generation: Encyclopedia II - Electricity generation - Electricity generation The importance of dependable electricity generation, transmission and distribution was revealed when it became apparent that electricity was useful for providing heat, light and power for human activities. Decentralised power generation became possible when it was recognised that alternating current electric power lines can transport electricity at low cost across great distances by taking advantage ...

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electricity generation: Encyclopedia - Hydroelectricity

Hydroelectricity is a form of hydropower used to produce electricity. Most hydroelectric power comes from the potential energy of dammed water driving a water turbine and generator. Less common variations make use of water's kinetic energy or undammed sources such as tidal power. Hydroelectricity is a renewable energy source. The energy extracted from water depends not only on the volume but on the difference in height between the source and the water's outflow. This height difference is called the head. The amoun ...

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electricity generation: Encyclopedia - Power station

A power station or power plant is a facility for the generation of electric power. 'Power plant' is also used to refer to the engine in ships, aircraft and other large vehicles. Some prefer to use the term "energy center" because it more accurately describes what the plants do, which is the conversion of other forms of energy, like chemical energy, into electrical energy. However, "power plant" remains the most commonly used term in American English, while "power stati ...

electricity generation: Encyclopedia - Prototype

Prototypes or prototypical instances combine the most representative attributes of a category. A prototype is the stage before the final design. They are the best examples among the members of a category and serve as benchmarks against which the surrounding "poorer" instances are categorized (see Prototype (linguistics)). See also: Categorization, Semantics Prototype - Mechanical and Electrical Engineering. The most common use of the word prototype is a functional though experimental version of a non ...

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electricity generation: Encyclopedia - Wireless energy transfer

Wireless energy transfer is the transfer of electromagnetic energy for power to do work via conduction and/or induction without a physical connection. Wireless energy transfer - Description. Wireless energy transfer, by definition, does not require direct electrical conductive contacts. Various systems work by transmitting electromagnetic energy from an external power source through a medium by running a large AC current through an external coil to generate a magnetic flux. The changing magnetic flux induce ...

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electricity generation: Encyclopedia - Classical electromagnetism

Classical electrodynamics (or classical electromagnetism) is a theory of electromagnetism that was developed over the course of the 19th century, most prominently by James Clerk Maxwell. It provides an excellent description of electromagnetic phenomena whenever the relevant length scales and field strengths are large enough that quantum mechanical effects are negligible (see quantum electrodynamics). Classical electromagnetism - Lorentz force. The electromagnetic field exerts the following force (oft ...

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electricity generation: Encyclopedia II - Electricity generation - Electricity demand

The demand for electricity can be met in two different ways. The primary method thus far has been for public or private utilities to construct large scale centralized projects to generate and transmit the electricity required to fuel growing economies. Many of these projects have unpleasant environmental effects such as air or radiation pollution and the flooding of large areas of land. Increasingly, distributed generation is seen as an alternate way to supply the electrical demand close to the users. Smaller, distributed projects can ...

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electricity generation

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