Solar Power Generation

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SOLAR POWER GENERATION (RENEWABLE ENERGY SOURCE) BY, PATNAM SHRUTHI

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SOLAR ENERGY: The energy that is produced from sun is known as solar energy. The Sun’s energy comes from nuclear fusion reaction that takes place deep in the sun, where hydrogen nucleus fuse into helium nucleus. When such a reaction takes place then tremendous amount of energy is produced which is escaped into the space.

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About 51% of sun’s energy is absorbed by earth’s atmosphere, some part is absorbed by earth’s surface and rest is reflected back to space. HOW MUCH SOLAR ENERGY REACHES EARTH?

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TYPES OF TECHNOLOGIES IN SOLAR POWER GENERATION: There are two types of technologies in generating power through solar energy, They are: Solar Photovoltaic Technology (a)Ground mounted solar photovoltaic system (b)Space based solar photovoltaic system 2.Floating solar chimney technology

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SOLAR PHOTOVOLTAIC TECHNOLOGY : Working of solar Photovoltaic cell:

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GROUND MOUNTED SOLAR PHOTOVOLTAIC SYSTEM :

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S PACE BASED SOLAR PHOTOVOLTAIC SYSTEM:

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FUNCTIONING:

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SANDWICH CONCEPT OF SPACE SOLAR POWER:

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FLOATING SOLAR CHIMNEY TECHNLOGY:

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APPLICATIONS : Solar Cookers: Box type solar cookers: Parabolic concentrating solar cookers:

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Solar Water H eaters:

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Solar Photovoltaic Cells I n T ransport:

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ADVANTAGES : 1.  Solar energy is free although there is a cost in the building of ‘collectors’ and other equipment required to convert solar energy into electricity or hot water . 2.  Solar energy does not cause pollution. However, solar collectors and other associated equipment / machines are manufactured in factories that in turn cause some pollution . 3.  Solar energy can be used in remote areas where it is too expensive to extend the electricity power grid . 4.  Many everyday items such as calculators and other low power consuming devices can be powered by solar energy effectively . 5.  It is estimated that the world’s oil reserves will last for 30 to 40 years. On the other hand, solar energy is infinite (forever).

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DIS-ADVANTAGES : 1 . Solar energy can only be harnessed when it is daytime and sunny. 2 . Solar collectors, panels and cells are relatively expensive to manufacture although prices are falling rapidly. 3 . In countries such as the UK, the unreliable climate means that solar energy is also unreliable as a source of energy. Cloudy skies reduce its effectiveness. 4 . Large areas of land are required to capture the suns energy. Collectors are usually arranged together especially when electricity is to be produced and used in the same location. 5. To Built Solar Power plant the cost expenses are too high.

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FUTURE SCOPE: As the technology has advanced, we now have started making use of electric vehicles too. Such vehicles have started becoming readily available and are operated using battery technology as well as solar energy. Their costs are now dropping and such vehicles are becoming readily available to the masses. Electric vehicles have a wonderful future for sure as they do not pollute the environment. They are also cheap in their usage.

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CONCLUSION: Use of solar energy is efficient in nature as it is a renewable energy source. By using such type of energies to generate and environment can be protected from global warming. Solar energy right now is minimal and does not make enough difference to justify the costs, in the future it probably has the greatest amount of potential because it does not have to be manually produced, extracted or burned. And it can also be used in outer space.

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