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nikos28
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In everyday life, we consume a tremendous amount of energy. Our lives are styled around consumption—consumption of natural resources and consumption of energy. Figure 1-1 dramatically illustrates where all of this energy goes. These figures are for a U.K. lifestyle, but we can take this as being representative for people who live in the “developed world.” The bulk of our energy consumption goes on space heating—58%—this is something that can easily be provided for with passive solar design. Next is water heating, which requires 24% of the energy which we use—again, we will see in this book how we can easily heat water with solar energy. So already we have seen that we can meet 82% of our energy needs with solar technologies! The next 13% of our energy is used to provide electrical power for our lights and home. In Chapter 10 on solar photovoltaics, we will see how we can produce clean electricity from solar energy with no carbon emissions. The remaining 5% is all used for cooking— again we will see in this
book how easy it is to cook with the power of the sun! So we have seen that all of our energy needs can be met with solar technologies.
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