Power (disambiguation)
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This disambiguation page lists articles associated with the same or a similar title.
Power (word): An English word over-loaded with meanings in several different domains of knowledge. [e]
Economics
- Market power: The ability of a supplier to exercise a degree of choice concerning the pricing of a product by restricting its supply: a measure of departure from the ideal of perfect competition in which every supplier is a price-taker [e]
Engineering
- Explosive power: The total power available from an explosive, measured with various tests of its ability to move mass rather than shatter it [e]
- Overhead power line: A power line installed above ground, on series of dedicated poles or towers, from which the line is suspended. [e]
Energy
Electrical power plant: An umbrella term for facilities to generate electric power, usually on an industrial scale. [e]- Geothermal power: Energy extraction from the heat stored beneath the Earth's surface which can be used directly for space and other heating or for generating electricity. [e]
- Hydropower: Diverse forms of power produced by or with water. [e]
- Nuclear power: The energy produced from controlled (non-explosive) nuclear reactions. Commercial nuclear power plants currently use the heat energy derived from nuclear fission reactions to generate steam, which in turn is used to generate electricity or other energy. [e]
- Solar power: Energy sources based directly on the sun's electromagnetic radiation. [e]
- Tidal power: Energy flows associated with tidal action. Some sources posit it to be an important alternative energy source. [e]
- Wind power: The conversion of air movement (wind) into a useful form of energy, such as using wind turbines to generate electricity, wind mills for mechanical power and wind pumps for pumping water. [e]
Types of electrical power generating plants
- Biomass power plant: An electrical power plant which produces electricity by burning biomass solids in a steam generator that heats water, which is then used to generate electricity. [e]
Coal-fired power plant: An electrical power plant that burns coal in a steam generator to produce high pressure steam, which goes to steam turbines that generate electricity. [e]- Geothermal power plant: An electrical power plant that extracts heat energy stored beneath Earth's surface and uses it to generate electricity. [e]
- Hydroelectric power plant: An electrical power plant that generates electric power by converting the energy in falling or flowing water into electricity; water is directed through turbines which spin to generate electricity. [e]
- Nuclear power plant: A power plant, often electric, that uses the energy derived from controlled (non-explosive) nuclear reactions to generate electricity. Conventionally, nuclear power plants used the heat energy derived from nuclear fission to generate steam, which in turn generates electric power. [e]
- Oxygen firing power plant: An electrical power plant similar to a conventional coal-fired power plant but with oxygen instead of air being used for the combustion of the coal. [e]
- Solar power plant: An electrical power plant that generates electricity directly from sunlight either by using photovoltaics or by focusing solar radiation into a concentrated beam of heat that is used to generate steam for conversion into electric power. [e]
- Thermal power plant: An electric power plant in which all of the electricity is produced by using a heat source to generate steam that drives a steam turbine which rotates an electrical generator. [e]
History
- Great power: A nation state able to exercise influence on a global scale. In the long century after 1815, the term was generally applied to the most powerful European nations. After World War II, the designation of permanent members of the United Nations Security Council was an expression of prevailing great powers. [e]
Slave Power: Add brief definition or description
Mathematics and statistics
- Power function: A function in which the argument is raised to a (constant-value) exponent. [e]
- Power series: An infinite series whose terms involve successive powers of a variable, typically with real or complex coefficients. [e]
- Power set: The set of all subsets of a given set. [e]
- Power (statistics): Add brief definition or description
Media
People
- Samantha Power: Special adviser for human rights, National Security Council staff in the Obama Administration; Pulitzer-prize journalist specializing in genocide [e]
Physics
- Power (physics): Rate of producing or consuming energy; SI unit: watt = joule/second. [e]
Politics
- Power (politics): The capacity to control the administration of resources within a society [e]
- Balance of power: The policy of forming alliances in order to counter the military power of a dominant country. [e]
- Occupying power: A formal legal concept from the Geneva Conventions, referring to nation-state(s) that have effective control of, and responsibility for, a conquered area [e]
- Regional power: In international relations, a nation whose power is restricted primarily to its own geographic region. [e]
- Power projection: The capability to deploy military forces, even if limited to air and special operations, on short notice over intercontinental ranges [e]
- Prerogative power: A legal doctrine that empowers a head of state or government to act beyond the laws of a nation, when the supreme national interests of that nation are involved [e]
- Social power: A social theory by French and Raven, postulates that there are six sources of social power: reward; coercion; legitimacy or normative power; referent (or organizational) power; expertise and information. [e]
- Superpower: In international relations, the most powerful nation(s). During the cold war, the United States and Soviet Union were recognized superpowers. Since the breakup of the Soviet empire, some believe the U.S. is the only remaining superpower, or that China is rapidly rising to superpower status. [e]
Religion
- Five Powers (Buddhism): Add brief definition or description
- Higher power: Add brief definition or description