Energy Efficiency

Energy efficiency (EE), is one of the two pillars of Sustainable Energy. The objective of EE activity is  to reduce the amount of energy required to provide products and services. Energy efficiency and energy conservation go hand in hand and complement each other. While the purpose of Energy efficiency is same as that of Energy Conservation, there is a major difference in between these terms. With energy efficiency, you don't have to sacrifice comfort to save energy. It is only the way of becoming efficient in utilizing energy. On the other hand, Energy conservation relates with a change in behaviour to save energy (turning off the lights, reducing use of appliances and other electronic equipment at time of no use, lowering the thermostat in winter etc).

Energy efficiency is achieved in different ways. For example, insulating our offices allows us to use less heating and cooling energy to maintain a comfortable temperature. Installing fluorescent lights, Energy Savers, LED bulbs or natural sun light reduces the amount of energy required to attain the same level of illumination compared with using traditional incandescent light bulbs. Improvements in energy efficiency are generally achieved by adopting a more efficient technology or production process or by application of commonly accepted methods to reduce energy loses.

Energy Efficiency is generally an economic necessity. The cost reduction in energy consumption is the major reason for achieving Energy Efficiency. There are, however many other motivations to improve energy efficiency. Reducing energy use is also seen as a solution to the problem of reducing greenhouse gas emissions. According to the International Energy Agency, improved energy efficiency in buildings, industrial processes and transportation can reduce the world's energy needs in 2050 by one third, and help control global emissions of greenhouse gases. In many countries energy efficiency is also taken as a national energy security benefit as it can reduce energy imports bills and also reduce the consumption rates  at which domestic energy resources are depleted.