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In almost all situations, the fossil fuel is combusted to generate heat. The heat in turn boils water into steam which is then fed to a turbine or other mechanism that converts the heat into rotational energy. This energy is then transferred (usually through a driveshaft) to an electric generator that produces electricity while it spins.

In most cases the power station is connected to a grid, and in that case the amount of power generated is almost exactly equal to the amount of steam fed to the turbine.

In fossil fuel stations the thermal efficiency is 25-50%. That means that even the most efficient ones waste about half the avaliable energy in the fuel, and the bad ones waste three-quarters.

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Q: How electricity is generated in a fossil fuel power station?
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How is electricity generated in a power station by using fossil fuels?

Burning fossil fuels (coal, oil and natural gas) is used to boil water. The steam is used to spin electricity turbines and this generates electricity.


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The difference is only the material that is being used to generate electricity.


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This is typical of nuclear plants where the fuel costs are low compared with fossil fuel costs.


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