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A PRESENTATION ON

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Contents :1.Abstract

2. Introduction

3.What is solar energy4. Wind energy

5. Solar-wind hybrid energy system6. Advantages

7.Conclusion

8.References

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Abstract :The oil shocks of 1970s led to spiraling crude oil prices in the world

market which prompted planners to view energy security as an issue of

national strategic importance. Energy security has an important bearing on

achieving national economic development goals and improving the quality

of life of the people. Worldsdependence on crude oil will continue for most

part of the 21st century but the continued dependence on crude oil is loaded

against it with inherent price volatility linked to finite global reserves. In

addition, global warming, caused largely by greenhouse gas emissions from

fossil fuel energy generating systems, is also a major concern. So, there is a

need to develop alternate fuels like non-conventional sources, consideringthe aforesaid two concerns.

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As the power demand is going on increasing day-by-day, it is responsible for our

engineers to make it available as per the demand.

Many of the power generating plant are using non-renewable sources as their

primary source.

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Photovoltaic is the direct conversion of light into electricity at the atomic

level.

Some materials exhibit a property known as the photoelectric effect that

causes them to absorb photons of light and release electrons.

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Large parabolic collectors are employed for collecting solar energy,

which is used to heat the fluid generally water which is stored in thestorage tank.

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WINDPOWER :A tower on which the wind turbine is mountedA rotor that is turned by the wind

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Solar-wind hybrid energy system

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Generally wind speed is low in the summer when sun shines brightestand longest. The wind is strong in the winter when less sunlight is

avalibul.Thus wind & a solar energy can complement each other & hence providereliability & long time alternative energy sources to state electricitysupply

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This system of energy conversion is noise less and cheap.

Maintenance cost is low.

They have long life.

Pollution free.

Highly reliable.

This provides power to the rural areas .

Another advantage of wind energy is that when combine with

solar electricity, this energy source is great for developed and

developing countries to provide a steady, reliable supply of

electricity

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CONCLUSIONThere is the need for the provision of an alternative sustainableelectric power supply system to provide electricity to rural and theunreached communities.The solar and wind energy is very useful us to produce the

continuous power supply in any season.This is a pollution free & reliability.The cost of the system is a economical .These types of renewable energy resources are very useful thanother sources.

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www.wikipedia.com

http://www.eia.doe.gov/kids/energyfacts/sources/renewable/solar.html

http://www.energyquest.ca.gov/story/chapter15.html

http://www.scienceonline.co.uk/energy/renewable-energy.html#solar

G.D.Rai, Non-Conventional energy sources, Khanna publications

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