Different energy sources supply us with the power we require to live and work. Geothermal, solar, wind and biomass are a few of the sources. In addition to being the primary source of electricity, these sources can also be used to transport and heating. The main challenge for these energy sources is that they can cause greenhouse gas emissions when they are burned to produce electricity. This is why it is necessary to find more sustainable sources of energy.
The most commonly used type of energy is the fossil fuels, made up of coal oil, natural gas. They were created millions of years ago when prehistoric animals and plants died and were then buried under layers of sedimentary rocks. When the right conditions, they gradually transformed into carbon-rich materials which, when burnt, generate energy. These fossil fuels will not be renewable as they will become depleted by the time we reach our age, or in many lifetimes.
Renewable energy sources however are constantly replenished. The sun is the most important source of renewable energy as it provides both warmth and light. It is used to power our homes and businesses, as well as to drive our cars. Wind is renewable energy source that generates electricity by spinning turbines. Since the first time people realized how to harness wind, we have been using it for millennia. We use biological processes create ethanol (a clear, alcohol-like substance that can be used as fuel) from the waste of crops and other materials.
Among these sources hydropower is by far the most important renewable energy source in the United States, though wind and biofuels are predicted to become the leading source of energy in the near future. Hydropower draws on nature’s hydro cycle to harness the power of flowing water, which is used to generate electricity.
https://leonardogiombini.it/2018/10/19/i-vantaggi-delle-centrali-energetiche