Advantages And Disadvantages Of Alternative Energy Sources

RENEWABLE AND NON-RENEWABLE energy sources

1. INTRODUCTION

Because of the recent sharp increases in the fossil fuels the world begins to look for alternative energy resources. For developing countries, these prices increases have a negative effect on the economy; for many countries which already suffer from poverty it is difficult to use fossil fuels and this meaning these countries are obliged to choose between fuel and food, health care, education, and other essentials.

Renewable energy resources need priority because: 1) Emissions of gases that pollute the environment and cause global warming and climate change; 2) high cost;

3) Environmental damages and security threats of nuclear power; 4) the serious consequences caused by fossil fuel.

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2. Renewable Energy

• Renewable energy is energy which is generated from natural sources i.e. sun, wind, rain, tides and can be generated again and again as when required.

• It is considered the cleanest sources of energy on this planet. Renewable sources have low carbon emissions, so they are considered environment friendly.

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2.1. Main forms of renewable energy

1. Wind energy

2. Hydro energy

3. Solar energy

4. Bio-fuel

5. Geothermal energy

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2.1.1. Wind energy

• Wind energy is extracted from wind by wind turbines to produce electricity, windmills for mechanical power, wind pump to pump water, or to push the sails of ships. Wind