Sources of Energy

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Energy is the ability to do work. A body with energy is capable of doing work, such as moving a car, lighting a bulb, or making water flow turn a turbine.

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In simple terms, anything out of which usable energy can be extracted is a source of energy. Coal, sunlight, wind, water, biomass, and uranium are examples.

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The sun is the ultimate source of energy for all living beings. Apart from nuclear energy, all other forms of energy result from solar energy. Plants store solar energy, and animals depend on plants d…

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Solar heating causes air movement, which produces wind. The sun drives the water cycle, which keeps rivers flowing. Fossil fuels are also called bottled solar energy because they store energy original…

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Renewable sources can be replenished in a short time. Non-renewable sources are limited and cannot be regenerated quickly. Water, wind, sunlight, geothermal, sea waves, hydrogen, and biomass are renew…

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Coal, oil, and natural gas have been used for a long time to produce heat, light, and electricity. Because of this long and common use, they are called conventional sources of energy.

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The three main fossil fuels are coal, crude oil, and natural gas. They are non-renewable and formed from the remains of dead plants and animals buried under the Earth for millions of years.

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Fossil fuels take millions of years to form, but they are being used very quickly. Coal reserves may last no longer than another 100 years, and oil and gas reserves may last another 30 to 35 years if …