how much us energy comes from nuclear?
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The USA has 98 operating nuclear power reactors in 30 states, operated by 30 different power companies. Since 2001 these plants have achieved an average capacity factor of over 90%, generating up to 807 TWh per year and accounting for about 20% of the total electricity generated.
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The fission of 1 g of uranium or plutonium per day liberates about 1 MW. This is the energy equivalent of 3 tons of coal or about 600 gallons of fuel oil per day, which when burned produces approximately 1/4 tonne of carbon dioxide.
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Advantages of nuclear power. The generation of electricity through nuclear energy reduces the amount of energy generated from fossil fuels (coal and oil). Less use of fossil fuels means lowering greenhouse gas emissions (CO2 and others). The cost of nuclear fuel (overall uranium) is 20% of the cost of energy generated.
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Nuclear energy is cleaner while generating electricity. Nuclear fission provides energy without releasing greenhouse gases such as carbon dioxide. ... In a nuclear power vs coal power comparison, however, consider that combustion of fossil fuels releases carbon dioxide into the atmosphere.
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The total binding energy released in fission of an atomic nucleus varies with the precise break up, but averages about 200 MeV* for U-235 or 3.2 x 10-11 joule. This is about 82 TJ/kg. That from U-233 is about the same, and that from Pu-239 is about 210 MeV* per fission.
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It Has High Energy Density Nuclear fission is nearly 8,000 times more efficient at producing energy than traditional fossil fuels. That's a considerable amount of energy density. Because nuclear energy is more efficient, it requires less fuel to power the plant and therefore creates less waste as well.
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Uranium is an abundant metal and is full of energy: One uranium fuel pellet creates as much energy as one ton of coal, 149 gallons of oil or 17,000 cubic feet of natural gas. It does not come out of the ground ready to go into a reactor, though.
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It is estimated that one ton of thorium can produce as much energy as 35 tons of uranium in a liquid fluoride thorium reactor. Conventional reactors utilizes less than one percent of uranium, whereas a well working reprocessing reactor can utilize 99% of its thorium fuel.
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Renewables provided 17.6% of electricity generation in the United States in 2018. Nearly 90% of the increase in U.S. renewable electricity between 2008 and 2018 came from wind and solar generation.
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In comparison, the total amount of energy that all humans use in a year is about 410 quintillion Joules. The average American home used 39 billion Joules of electricity in 2015, to give you some context (that's 39 with only nine zeroes after it).
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['Nuclear fission is one of the most cost-effective forms of energy we have today. ... ', 'We can transmit the power from nuclear fission over long distances. ... ', 'Nuclear fission creates fewer emissions than other energy resources.']
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In the United States :   Americans constitute 5% of the world's population but consume 24% of the world's energy.
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Nuclear energy contributes a very small amount of emissions into the atmosphere which can cause many environmental problems such as global warming. ... Also, nuclear energy produces the same amount if not less greenhouse gasses than renewable resources.
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The United States is one of the five recognized nuclear powers by the signatories of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT). As of 2017, the US has an estimated 4,018 nuclear weapons in either deployment or storage.
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What is U.S. electricity generation by energy source? In 2019, about 4,118 billion kilowatthours (kWh) (or about 4.12 trillion kWh) of electricity were generated at utility-scale electricity generation facilities in the United States.
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As of the end of 2017, the United States had over 50 gigawatts (GW) of installed photovoltaic capacity. In 2018, utility scale solar power generated 66.6 terawatt-hours (TWh), 1.66% of total U.S. electricity.
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In 2018, the United States consumed more energy than ever before. Primary energy consumption in the United States reached a record high of 101.3 quadrillion British thermal units (Btu) in 2018, up 4% from 2017 and 0.3% above the previous record set in 2007.