25-588: Edwardsport is a town in Vigo Township , Knox County , Indiana , United States. The population was 303 at the 2010 census . It was founded in 1832 and named after Edward Wilkins, a founding father. Alfred Simonson House was added to the National Register of Historic Places in 2009. Edwardsport is located at 38°48′41″N 87°15′6″W / 38.81139°N 87.25167°W / 38.81139; -87.25167 (38.811322, -87.251670). According to
50-546: A light bulb with a power rating of 100 W is turned on for one hour, the energy used is 100 watt hours (W·h), 0.1 kilowatt hour, or 360 kJ . This same amount of energy would light a 40-watt bulb for 2.5 hours, or a 50-watt bulb for 2 hours. Power stations are rated using units of power, typically megawatts or gigawatts (for example, the Three Gorges Dam in China is rated at approximately 22 gigawatts). This reflects
75-492: A constant opposing force of one newton , the rate at which work is done is one watt. 1 W = 1 J / s = 1 N ⋅ m / s = 1 k g ⋅ m 2 ⋅ s − 3 . {\displaystyle \mathrm {1~W=1~J{/}s=1~N{\cdot }m{/}s=1~kg{\cdot }m^{2}{\cdot }s^{-3}} .} In terms of electromagnetism , one watt
100-399: A household in the town was $ 26,750, and the median income for a family was $ 31,979. Males had a median income of $ 26,979 versus $ 17,917 for females. The per capita income for the town was $ 13,541. About 15.6% of families and 20.5% of the population were below the poverty line , including 38.5% of those under age 18 and 8.9% of those age 65 or over. The Edwardsport Power Station located to
125-535: A turbine, which generates 648 MW e (i.e. electricity). Other SI prefixes are sometimes used, for example gigawatt electrical (GW e ). The International Bureau of Weights and Measures , which maintains the SI-standard, states that further information about a quantity should not be attached to the unit symbol but instead to the quantity symbol (e.g., P th = 270 W rather than P = 270 W th ) and so these unit symbols are non-SI. In compliance with SI,
150-486: A unit of time, namely 1 J/s. In this new definition, 1 absolute watt = 1.00019 international watts. Texts written before 1948 are likely to be using the international watt, which implies caution when comparing numerical values from this period with the post-1948 watt. In 1960, the 11th General Conference on Weights and Measures adopted the absolute watt into the International System of Units (SI) as
175-549: Is land and 0.97 square miles (2.5 km ) (or 1.45%) is water. Vigo Township residents may obtain a free library card from the Bicknell-Vigo Township Public Library. This Knox County, Indiana location article is a stub . You can help Misplaced Pages by expanding it . Megawatt The watt (symbol: W ) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m ⋅s . It
200-700: Is named after the Scottish inventor James Watt . The unit name was proposed by C. William Siemens in August 1882 in his President's Address to the Fifty-Second Congress of the British Association for the Advancement of Science . Noting that units in the practical system of units were named after leading physicists, Siemens proposed that watt might be an appropriate name for a unit of power. Siemens defined
225-455: Is one of ten townships in Knox County, Indiana . As of the 2020 census, its population was 4,083 (up from 4,031 at 2010 ) and it contained 2,095 housing units. Vigo Township was established in 1837. It was named for Col. François Vigo. According to the 2010 census, the township has a total area of 67.11 square miles (173.8 km ), of which 66.13 square miles (171.3 km ) (or 98.54%)
250-523: Is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potential difference of one volt (V), meaning the watt is equivalent to the volt-ampere (the latter unit, however, is used for a different quantity from the real power of an electrical circuit). 1 W = 1 V ⋅ A . {\displaystyle \mathrm {1~W=1~V{\cdot }A} .} Two additional unit conversions for watt can be found using
275-516: Is used to quantify the rate of energy transfer . The watt is named in honor of James Watt (1736–1819), an 18th-century Scottish inventor , mechanical engineer , and chemist who improved the Newcomen engine with his own steam engine in 1776. Watt's invention was fundamental for the Industrial Revolution . When an object's velocity is held constant at one meter per second against
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#1732869847360300-500: The 2010 census, Edwardsport has a total area of 0.28 square miles (0.73 km), all land. The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen Climate Classification system, Edwardsport has a humid subtropical climate , abbreviated "Cfa" on climate maps. As of the census of 2010, there were 303 people, 128 households, and 87 families living in
325-467: The above equation and Ohm's law . 1 W = 1 V 2 / Ω = 1 A 2 ⋅ Ω , {\displaystyle \mathrm {1~W=1~V^{2}/\Omega =1~A^{2}{\cdot }\Omega } ,} where ohm ( Ω {\displaystyle \Omega } ) is the SI derived unit of electrical resistance . The watt
350-428: The age of 18 living with them, 52.3% were married couples living together, 10.2% had a female householder with no husband present, 5.5% had a male householder with no wife present, and 32.0% were non-families. 29.7% of all households were made up of individuals, and 10.9% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 2.85. The median age in
375-515: The energy company Ørsted A/S uses the unit megawatt for produced electrical power and the equivalent unit megajoule per second for delivered heating power in a combined heat and power station such as Avedøre Power Station . When describing alternating current (AC) electricity, another distinction is made between the watt and the volt-ampere . While these units are equivalent for simple resistive circuits , they differ when loads exhibit electrical reactance . Radio stations usually report
400-460: The maximum power output it can achieve at any point in time. A power station's annual energy output, however, would be recorded using units of energy (not power), typically gigawatt hours. Major energy production or consumption is often expressed as terawatt hours for a given period; often a calendar year or financial year. One terawatt hour of energy is equal to a sustained power delivery of one terawatt for one hour, or approximately 114 megawatts for
425-488: The power of their transmitters in units of watts, referring to the effective radiated power . This refers to the power that a half-wave dipole antenna would need to radiate to match the intensity of the transmitter's main lobe . The terms power and energy are closely related but distinct physical quantities. Power is the rate at which energy is generated or consumed and hence is measured in units (e.g. watts) that represent energy per unit time . For example, when
450-545: The south of the town provides energy to the region. The plant has two units totalling 160 megawatt capacity. A report by the WWF in 2005 ranked it as the second most polluting power station in the industrialized world, in terms of the level of carbon dioxide produced per unit of electricity generated. A third IGCC unit, of 600 megawatts, is under construction. When it opens in 2011, units one and two are to be decommissioned. Vigo Township, Knox County, Indiana Vigo Township
475-556: The town was 45.2 years. 19.5% of residents were under the age of 18; 6.3% were between the ages of 18 and 24; 23.5% were from 25 to 44; 35.6% were from 45 to 64; and 15.2% were 65 years of age or older. The gender makeup of the town was 50.8% male and 49.2% female. As of the census of 2000, there were 363 people, 151 households, and 104 families living in the town. The population density was 1,305.3 inhabitants per square mile (504.0/km). There were 170 housing units at an average density of 611.3 per square mile (236.0/km). The racial makeup of
500-495: The town was 97.80% White , 0.55% African American , 0.28% Native American , and 1.38% from other races . Hispanic or Latino of any race were 1.65% of the population. There were 151 households, out of which 31.8% had children under the age of 18 living with them, 56.3% were married couples living together, 7.9% had a female householder with no husband present, and 31.1% were non-families. 27.8% of all households were made up of individuals, and 14.6% had someone living alone who
525-433: The town. The population density was 1,082.1 inhabitants per square mile (417.8/km). There were 169 housing units at an average density of 603.6 per square mile (233.1/km). The racial makeup of the town was 98.3% White , 0.3% Pacific Islander , 0.7% from other races , and 0.7% from two or more races. Hispanic or Latino of any race were 1.7% of the population. There were 128 households, of which 25.8% had children under
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#1732869847360550-559: The unit of power. In the electric power industry , megawatt electrical ( MWe or MW e ) refers by convention to the electric power produced by a generator, while megawatt thermal or thermal megawatt (MWt, MW t , or MWth, MW th ) refers to thermal power produced by the plant. For example, the Embalse nuclear power plant in Argentina uses a fission reactor to generate 2,109 MW t (i.e. heat), which creates steam to drive
575-556: The unit within the existing system of practical units as "the power conveyed by a current of an Ampère through the difference of potential of a Volt". In October 1908, at the International Conference on Electric Units and Standards in London, so-called international definitions were established for practical electrical units. Siemens' definition was adopted as the international watt. (Also used: 1 A × 1 Ω.) The watt
600-452: Was 65 years of age or older. The average household size was 2.40 and the average family size was 2.88. In the town, the population was spread out, with 22.9% under the age of 18, 10.5% from 18 to 24, 31.1% from 25 to 44, 24.0% from 45 to 64, and 11.6% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 100.6 males. For every 100 females age 18 and over, there were 104.4 males. The median income for
625-420: Was defined as equal to 10 units of power in the practical system of units. The "international units" were dominant from 1909 until 1948. After the 9th General Conference on Weights and Measures in 1948, the international watt was redefined from practical units to absolute units (i.e., using only length, mass, and time). Concretely, this meant that 1 watt was defined as the quantity of energy transferred in
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