End-use
End-use(n.) : the ultimate specific use to which a manufactured product (such as paper) is put or Restricted.1 A dictionary definition of ‘End-use’ is the following. It is a final categorizing method of certain products based on their ultimate purposes of use. One product can be used for different purposes, and if it is for environmental pollution prevention, it will be categorized as an environmental product.2 For instance, looking into a case of energy, there are many steps of transferring fossil fuel to actual energy, and every step there is an energy loss. In order for a building to operate, a lot of energy is required. If the method of energetic use is adapted, the efficiency of energy usage will be maximized; in other words, minimum energy can be used to keep the building air pleasant. An insulator keeps heating energy in winter and in summer, it keeps the air cool. Nature, an outside energy source can be used to receive energy also.3 For example, the use of solar energy can reduce heating cost and the amount. Rocky Mountain Institute utilizes passive elements such as solar panel, arrangement of space and insulation to receive energies from nature like solar, geothermal and others. These elements maximize energy efficiency. As a result, the usage of human-generated energy is minimized and purposes of use vary.