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Alternative Energy

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Introduction

´╗┐Home ?The role of alternate source of energy in the world?s energy economy.? of alternate source of energy in the world?s energy economy.? Alternate Sources of Energy By: Aadharsh. D, 10B ________________ Introduction Energy is extremely important to us and is an inseparable part of our lives. Everyone uses energy in their daily lives. Energy is needed for so many things such as providing light, cooking food and also for transportation. Humans cannot function properly without energy and there would be chaos if there was no energy to supply our daily activities. Currently, the majority of the energy sector depends on fossil fuels or hydrocarbons to provide energy. The pie chart on the right shows the percentage of energy in the US that comes from fossil fuels and that number is a staggering 88%. Hydrocarbons are organic compounds consisting entirely of hydrogen and carbon. They are the world?s most important energy sources. They are the main source of electrical energy and are also used to heat homes due to the amount of energy produced when burnt. They produce steam, carbon dioxide and heat during combustion in the presence of oxygen. One major disadvantage is that if their combustion is incomplete, some of the products will be pollutants which affect the ozone layer and also are harmful to humans. ...read more.

Middle

Solar power is a clean, unlimited and renewable power source. It does not pollute the environment in any way and is simple enough to be used at homes for heating water. The only problem is that solar cells are expensive and you would need a large area of solar cells to produce large amounts of electricity. Due to this reason, a company would require large areas of flat land where there is lots of sunshine available. Geo-thermal is used in many countries for heating homes especially in Europe but a geo-thermal station is expensive to build and you can only build it where the earth?s heat is accessible from the surface. Wind power is harnessed through windmills. It costs a lot of money to build a windmill and if you want to build many, you need a lot of clear land in a windy place. The land used up in the windmill farm could be used for other things such as agriculture or housing. What should we base our energy needs on for the next 50 years? I believe that we should shift our energy needs from fossil fuels such as oil and natural gas to a renewable source of energy such as solar power. The technology for making solar cells has advanced greatly and will advance greatly in the future and so we can make solar cells that take in sunlight more efficiently. ...read more.

Conclusion

If we are exposed to radioactivity for so long, it will alter our DNA and genes and our descendants might have some deformation. Economical The energy industry is one of the biggest industries in the world. Oil companies have offices and employees all over the world. Most oil companies are multinational companies and are worth billions of dollar in market value. When oil runs out, some of these companies will go bankrupt and this will affect the market in a huge way unless they switch to renewable sources. Many countries such as the ones in Middle East depend on the energy industry to drive their economy and that is why they are so rich. Without the abundance of oil that they have, the countries will be in an economic crisis and lots of people will be poor with no jobs. Conclusion Energy is extremely vital to us as it allows us to do our daily task. Without electricity, the world would be in chaos and almost no one can live normally. It affects us in every way, economically, socially and also environmentally. Soon the non-renewable sources will run out and we will have to use renewable sources to produce electricity and that is why renewable sources are extremely important for our future and environment. We must learn to appreciate the amount of fossil fuels left and use them wisely as possible so that we can keep them as long as possible. We should also start shifting our energy needs to renewable sources. ...read more.

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