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  2. Geothermal energy - Wikipedia

    en.wikipedia.org/wiki/Geothermal_energy

    Geothermal energy is thermal energy extracted from the Earth's crust. It combines energy from the formation of the planet and from radioactive decay . Geothermal energy has been exploited as a source of heat and/or electric power for millennia.

  3. Earth's internal heat budget - Wikipedia

    en.wikipedia.org/wiki/Earth's_internal_heat_budget

    The evolution of Earth's radiogenic heat flow over time. The radioactive decay of elements in the Earth's mantle and crust results in production of daughter isotopes and release of geoneutrinos and heat energy, or radiogenic heat. About 50% of the Earth's internal heat originates from radioactive decay. [17]

  4. Earth's energy budget - Wikipedia

    en.wikipedia.org/wiki/Earth's_energy_budget

    The percentage going into each domain of the climate system is also indicated. Earth's energy budget (or Earth's energy balance) is the balance between the energy that Earth receives from the Sun and the energy the Earth loses back into outer space. Smaller energy sources, such as Earth's internal heat, are taken into consideration, but make a ...

  5. Geothermal gradient - Wikipedia

    en.wikipedia.org/wiki/Geothermal_gradient

    Earth cutaway from core to exosphere Geothermal drill machine in Wisconsin, USA. Temperature within Earth increases with depth. Highly viscous or partially molten rock at temperatures between 650 and 1,200 °C (1,200 and 2,200 °F) are found at the margins of tectonic plates, increasing the geothermal gradient in the vicinity, but only the outer core is postulated to exist in a molten or fluid ...

  6. File:Earth Energy Budget with GHE.svg - Wikipedia

    en.wikipedia.org/wiki/File:Earth_Energy_Budget...

    The diagram depicts energy exchanges between the surface and the atmosphere, and between the atmosphere and space, but does not depict any details of energy transfers within the atmosphere. References. Data is taken from the energy budget diagram in the IPCC 2021 AR6 WG1 report p. 934, and based on data published in 2015. The technical ...

  7. Geothermal heating - Wikipedia

    en.wikipedia.org/wiki/Geothermal_heating

    Geothermal energy is a type of renewable energy that encourages conservation of natural resources. According to the US Environmental Protection Agency , geo-exchange systems save homeowners 30–70 percent in heating costs, and 20–50 percent in cooling costs, compared to conventional systems. [ 29 ]

  8. Geothermal - Wikipedia

    en.wikipedia.org/wiki/Geothermal

    Geothermal is related to energy and may refer to: Geothermal energy, useful energy generated and stored in the Earth; Geothermal activity, the range of natural phenomena at or near the surface, associated with release of the Earth's internal heat. Earth's internal heat budget, accounting of the flows of energy at and below the surface of the ...

  9. Energy transformation - Wikipedia

    en.wikipedia.org/wiki/Energy_transformation

    Fire is an example of energy transformation Energy transformation using Energy Systems Language. Energy transformation, also known as energy conversion, is the process of changing energy from one form to another. [1] In physics, energy is a quantity that provides the capacity to perform work (e.g. lifting an object) or provides heat.

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