The Importance of Solar Power

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The sun shines upon Earth everyday, yet no one thinks much of it. Solar power’s importance, though, is above what anyone could have ever imagined. There is active solar energy which is when solar power is converted into light, heat, cause air-movement for ventilation or cooling, or store heat for future use. Less thought of, the other type of solar energy is passive energy, which most take for granted. Solar power provides life with heat, light, and now, electricity. Solar power also plays a role in 4 of the 5 areas of green technology: energy, green building, environmentally preferred purchasing, and green chemistry. All in all, solar power is quite a unique form of energy. The most simplest type of solar energy is passive energy. It is when solar energy is used directly in the forms of heat or light. This energy can be collected as easily as changing way a structure is oriented, designed, or constructed. Windows can allow the sun to heat and light up the room to replace electricity during the day. Heat-absorbing surfaces like a dark walls help collect heat to warm the home, while air vents may spread the warm air around the house. All in all, passive energy is one of the two types of solar energy. Active energy is when solar power is turned into electricity using a technology called Solar Photovoltaic (PV) or into heat by Solar Thermal. This type of energy is not directly changed into the forms. Semiconductors are used in Solar Photovoltaic and create electricity when hit by sunlight. These are organized in single cells which are then put into larger groups and arrays. They are flat-plates that have insulated glass-covered box painted black to maximize the collection of heat. Between the collectors water circulates in loops, w... ... middle of paper ... ...nergy will help life on Earth greatly in the long run and will help slow disasters such as global warming. Works Cited
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