Power plants are an important facility in the generation of electricity. Almost all power stations consist of generators, where rotating turbines convert mechanical energy into electrical energy.
Most of them are driven by fossil fuels such as coal, oil and gas, while others depend on nuclear power. Fossil fuels are those who have become fossilized over several years and extracted from the earth or from the deep sea body.
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Coal is the most abundant fossil fuel throughout the world. Extracting coal is relatively cost-effective, with open hole mining or deep mining by sinking shafts as a common form of extraction.
Other fuels used in power plants are oil extracted from crude oil and mainly consist of hydrocarbon and sulfur. This is extracted by drilling wells through non-porous rocks that trap oil in it.
Natural gas also gets excellence as a source of power generation because it tends to be more cost effective than use of oil. Natural gas is released during extraction of coal or oil and is stored mainly in the form of compressed gas.
Although the most common form of fuel used in power plants, fossil fuels are known as the main source of greenhouse gases such as carbon dioxide, sulfur dioxide and nitrogen oxide which has contributed substantially to global warming.