why why is coal energy important

Why Is Coal Important? | Reference

Coal is important because it is a reliable and an affordable source of energy in many countries. It is responsible for about 40 percent of the electricity generated in the world. Coal is a crucial ingredient in manufacturing industries. There are two types of coal: metallurgical and thermal. Thermal coal is used for power generation.

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Why Is Energy Important? | Reference

Coal, oil and other fossil fuels are the result of plants and animals dying and leaving behind energy-rich matter. This matter can be converted into electricity or mechanical energy. Solar and wind power use the energy provided by the sun to create electrical energy; nuclear energy exploits atomic forces to create a tremendous amount of energy .

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Why is Renewable Energy Important? - Understand Solar