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:

    “I have witnessed the tremendous energy of the masses. On this foundation it is possible to accomplish any task whatsoever.”
    —Mao Zedong (1893–1976)

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