Energy use is increasing along with the growth in population and the changes in our energy consumption habits. This brings up the question: How can we better prepare for a future so that we use less energy? This question can be answered with two phrases: energy conservation or energy efficiency. The two terms may seem similar; however, there is a basic difference between the two, which results from quality engineering. Energy conservation is an action of using less energy, either through personal choice, or because of necessity. Energy efficiency, on the other hand, is the engineering outcome of technologies that consume less energy to conduct the same function without giving up the standards. Turning off the lights in the evening, when there is a need for light, is energy conservation.
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