Energy Efficiency

Energy efficiency may refer to:

  • Efficient energy use, sometimes simply called energy efficiency.
    • Energy efficiency in transportation.
  • Energy conversion efficiency, the ratio between the output and input of an energy conversion machine.
  • Energy conservation, efforts made to reduce energy consumption.

Famous quotes containing the words energy and/or efficiency:

    “Reckoned physiologically, everything ugly weakens and afflicts man. It recalls decay, danger, impotence; he actually suffers a loss of energy in its presence. The effect of the ugly can be measured with a dynamometer. Whenever man feels in any way depressed, he senses the proximity of something “ugly.” His feeling of power, his will to power, his courage, his pride—they decline with the ugly, they increase with the beautiful.”
    —Friedrich Nietzsche (1844–1900)

    “I’ll take fifty percent efficiency to get one hundred percent loyalty.”
    —Samuel Goldwyn (1882–1974)