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  2. Energy density - Wikipedia

    en.wikipedia.org/wiki/Energy_density

    In light-water reactors, 1 kg of natural uranium – following a corresponding enrichment and used for power generation– is equivalent to the energy content of nearly 10,000 kg of mineral oil or 14,000 kg of coal. [16] Comparatively, coal, gas, and petroleum are the current primary energy sources in the U.S. [17] but have a much lower energy ...

  3. Natural gas - Wikipedia

    en.wikipedia.org/wiki/Natural_gas

    The natural gas transmission lines extend to the natural gas processing plant or unit which removes the higher-molecular weight hydrocarbons to produce natural gas with energy content between 35–39 megajoules per cubic metre (950–1,050 British thermal units per cubic foot). The processed natural gas may then be used for residential ...

  4. Natural gas in the United States - Wikipedia

    en.wikipedia.org/wiki/Natural_gas_in_the_United...

    Natural gas production 1973-2022 U.S. natural gas monthly production, imports, and exports Discovered shale gas deposits as of June 2016 Natural gas production by State. Natural gas was the United States' largest source of energy production in 2016, representing 33 percent of all energy produced in the country. [1]

  5. Energy in the United States - Wikipedia

    en.wikipedia.org/wiki/Energy_in_the_United_States

    The United States is the world's second-largest producer and consumer of electricity. It generates 15% of the world's electricity supply, about half as much as China. [78] The United States produced 3,988 TWh in 2021. Total generation has been flat since 2010. Net electricity imports were 39 TWh, or about 1% of sales.

  6. Heat of combustion - Wikipedia

    en.wikipedia.org/wiki/Heat_of_combustion

    Heat of combustion. The heating value (or energy value or calorific value) of a substance, usually a fuel or food (see food energy), is the amount of heat released during the combustion of a specified amount of it. The calorific value is the total energy released as heat when a substance undergoes complete combustion with oxygen under standard ...

  7. Haber process - Wikipedia

    en.wikipedia.org/wiki/Haber_process

    The Haber process consumes 3–5% of the world's natural gas production (around 1–2% of the world's energy supply). [ 4 ] [ 66 ] [ 67 ] [ 68 ] In combination with advances in breeding, herbicides, and pesticides, these fertilizers have helped to increase the productivity of agricultural land:

  8. Food energy - Wikipedia

    en.wikipedia.org/wiki/Food_energy

    Food energy. Food energy is chemical energy that animals (including humans) derive from their food to sustain their metabolism, including their muscular activity. [1] Most animals derive most of their energy from aerobic respiration, namely combining the carbohydrates, fats, and proteins with oxygen from air or dissolved in water. [2]

  9. Cellulosic ethanol - Wikipedia

    en.wikipedia.org/wiki/Cellulosic_ethanol

    Energy used to run corn-based ethanol plants is derived from coal and natural gas. The Institute for Local Self-Reliance estimates the cost of cellulosic ethanol from the first generation of commercial plants will be in the $1.90–$2.25 per gallon range, excluding incentives.