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  2. Efficient energy use - Wikipedia

    en.wikipedia.org/wiki/Efficient_energy_use

    Common energy efficiency label on appliances to indicate their energy efficiency in a clear manner. Efficient energy use, or energy efficiency, is the process of reducing the amount of energy required to provide products and services. There are many technologies and methods available that are more energy efficient than conventional systems.

  3. Energy efficiency - Wikipedia

    en.wikipedia.org/wiki/Energy_efficiency

    Energy efficiency may refer to: Energy efficiency (physics), the ratio between the useful output and input of an energy conversion process Electrical efficiency, useful power output per electrical power consumed; Mechanical efficiency, a ratio of the measured performance to the performance of an ideal machine

  4. Energy conservation - Wikipedia

    en.wikipedia.org/wiki/Energy_conservation

    Measurable energy conservation and efficiency gains in the 1980s led to the 1987 Energy Security Report to the President (DOE, 1987) that "the United States uses about 29 quads less energy in a year today than it would have if our economic growth since 1972 had been accompanied by the less- efficient trends in energy use we were following at ...

  5. Energy conversion efficiency - Wikipedia

    en.wikipedia.org/wiki/Energy_conversion_efficiency

    Energy conversion efficiency (η) is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The input, as well as the useful output may be chemical , electric power , mechanical work , light (radiation), or heat .

  6. Ecological efficiency - Wikipedia

    en.wikipedia.org/wiki/Ecological_efficiency

    In comparing the cultivation of animals versus plants, there is a clear difference in magnitude of energy efficiency. Edible kilocalories produced from kilocalories of energy required for cultivation are: 18.1% for chicken, 6.7% for grass-fed beef, 5.7% for farmed salmon, and 0.9% for shrimp.

  7. Template:Sustainable energy - Wikipedia

    en.wikipedia.org/wiki/Template:Sustainable_energy

    Download as PDF; Printable version; In other projects ... Efficient energy use; ... You can include this template in any sustainable energy-related article by adding ...

  8. Energy management - Wikipedia

    en.wikipedia.org/wiki/Energy_management

    Through the energy efficiency it management is remain the key for the any industrial user across globe, to achieve the energy management goal for the federal government or industry the efficiency of water and energy resources play a vital role Examples of how it is possible to save energy and costs with the help of maintenance:

  9. Household energy insecurity - Wikipedia

    en.wikipedia.org/wiki/Household_energy_insecurity

    Household energy insecurity is a broad framework that includes a household's inability to afford energy costs as one of several factors in a household's ability to meet energy needs. Household energy insecurity is influenced by both internal and external factors such as energy cost, household income, housing conditions, and personal behavior. [1]