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Renewable energies

Definition of Renewable Energy

Renewable energies (or EnR) refer to a set of means of producing energy from theoretically unlimited sources or resources, available without time limit or replenishable more quickly than they are consumed.

We generally speak of renewable energies as opposed to energies drawn from fossil fuels whose stocks are limited and non-renewable on a human time scale: coal, oil, natural gas... On the contrary, renewable energies are produced from sources such as the rays of the sun, or the wind, which are theoretically unlimited on a human scale.

Renewable energies are also sometimes referred to by the terms “green energies” or “clean energies”, by misuse of language. Indeed, if renewable energies very often have ecological advantages, they are not necessarily “green” or “clean” in the sense that they also have significant environmental consequences.

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