What is renewable energy and examples?

Renewable energy characteristics

Now that we know what renewable energies are and what types there are, let’s delve into some examples of these forms of energy, which, as we have seen, vary depending on the source that generates them.

I have a concern. Hydroelectric energy obtained from a “run-of-the-river” system, that is, without the need to build a reservoir. If it can be considered renewable. But those cases in which to make the dam or dam is flooded a lot of land and “eliminates” a large amount of native vegetation of that place, eliminating filters or natural lungs for the “trapping” of CO2, is a renewable source?

Renewable energy

There is still a lot of work to be done, and sometimes the concept of renewable energy is confused with clean energy, when they are not the same thing. In addition, there is sometimes confusion as to whether an energy source is inexhaustible or not.

Renewable energies are those that come from inexhaustible sources. They can be unlimited because they will always be there, such as wind, or because they can be renewed in a short time, such as biomass.

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If we look at the example, there are major differences between these two renewable energies. Biomass, which consists of burning organic matter (especially vegetable matter) to produce heat, is considered inexhaustible because these crops can be replenished.

In other words, in reality, the material used is finished, but there is the capacity to plant again and obtain more in a short space of time. The wind, or the sun, however, blows and rises every day, being also renewable energies, but because they do not run out.

These fossil fuels are so called because they were produced from the organic remains of very old animals and plants. That natural process is still going on, but it takes too long for it to be considered renewable.

Renewable and non-renewable energies

Renewable energies are clean, inexhaustible and increasingly competitive sources of energy. They differ from fossil fuels mainly in their diversity, abundance and potential for use anywhere on the planet, but above all in that they do not produce greenhouse gases – the cause of climate change – or polluting emissions. Moreover, their costs are falling steadily, whereas the general trend in the cost of fossil fuels is the opposite, regardless of their cyclical volatility.

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According to the IEA, global electricity demand will increase by 70% by 2040 – raising its share of final energy use from 18% to 24% over the same period – driven mainly by emerging regions (India, China, Africa, the Middle East and Southeast Asia).  DISCOVER WHAT RENEWABLE ENERGIES ARE IN 2 MINUTESRenewable energies are those that are obtained from inexhaustible natural sources and generate electricity without contributing to global warming.

Importance of renewable energy

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