Energy efficiency
Encyclopedia
Energy efficiency may refer to:
- Efficient energy useEfficient energy useEfficient energy use, sometimes simply called energy efficiency, is the goal of efforts to reduce the amount of energy required to provide products and services. For example, insulating a home allows a building to use less heating and cooling energy to achieve and maintain a comfortable temperature...
, sometimes simply called energy efficiency. - Energy conversion efficiencyEnergy conversion efficiencyEnergy conversion efficiency is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The useful output may be electric power, mechanical work, or heat.-Overview:...
, the ratio between the output and input of an energy conversion machine. - Energy conservationEnergy conservationEnergy conservation refers to efforts made to reduce energy consumption. Energy conservation can be achieved through increased efficient energy use, in conjunction with decreased energy consumption and/or reduced consumption from conventional energy sources...
, efforts made to reduce energy consumption.