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  2. Units of energy - Wikipedia

    en.wikipedia.org/wiki/Units_of_energy

    In spectroscopy, the unit cm −1 ≈ 0.000 123 9842 eV is used to represent energy since energy is inversely proportional to wavelength from the equation = = /. In discussions of energy production and consumption, the units barrel of oil equivalent and ton of oil equivalent are often used.

  3. List of countries by electricity consumption - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    By 2025, Asia is projected to account for half of the world’s electricity consumption, with one-third of global electricity to be consumed in China. [1] This list of countries by electric energy consumption is mostly based on the Energy Information Administration. [2]

  4. World energy supply and consumption - Wikipedia

    en.wikipedia.org/wiki/World_energy_supply_and...

    Global energy consumption, measured in exajoules per year: Coal, oil, and natural gas remain the primary global energy sources even as renewables have begun rapidly increasing. [1] Primary energy consumption by source (worldwide) from 1965 to 2020 [2] World energy supply and consumption refers to the global supply of energy resources and its ...

  5. List of countries by energy consumption per capita - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Social Progress Index vs Energy Use per capita, 2015. List of countries by Social Progress Index. World energy consumption per capita based on 2021 data. This is a list of countries by total energy consumption per capita. This is not the consumption of end-users but all energy needed as input to produce fuel and electricity for end-users.

  6. Electric energy consumption - Wikipedia

    en.wikipedia.org/wiki/Electric_energy_consumption

    Electric energy consumption is energy consumption in the form of electrical energy. [2] About a fifth of global energy is consumed as electricity: for residential, industrial, commercial, transportation and other purposes. [ 2 ]

  7. Quad (unit) - Wikipedia

    en.wikipedia.org/wiki/Quad_(unit)

    A quad is a unit of energy equal to 10 15 (a short-scale quadrillion) BTU, [1] or 1.055 × 10 18 joule (1.055 exajoules or EJ) in SI units. The unit is used by the U.S. Department of Energy in discussing world and national energy budgets. The global primary energy production in 2022 was 637.8 quad, i.e., 672.9 EJ. [2]

  8. List of countries by energy intensity - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    The following is a list of countries by energy intensity as published by the World Resources Institute for the year 2003. It is given in units of tonnes of oil equivalent per million constant year 2000 international dollars. * indicates "Energy consumption in COUNTRY or TERRITORY" or "Energy in COUNTRY or TERRITORY" links.

  9. Watt - Wikipedia

    en.wikipedia.org/wiki/Watt

    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 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 ...