We require various energy sources to work and live. Geothermal, solar, wind and biomass are among the sources. These sources are not only an important source of electricity, but also can be used to heat or transport. These energy sources produce greenhouse gases when they are burned to generate electricity. This leads to the need for more sustainable energy sources.
The most common type of energy is the fossil fuels, which consist of coal, oil, and natural gas. They began to form millions and millions of years ago when animals and plants of the past died and were covered by layers of sedimentary rock. If the conditions were right, these fossil fuels were slowly transformed into carbon-rich materials that, when burnt produce energy. These fossil fuels cannot be recycled because they will run out in our lifetimes or even in many lifetimes.
Renewable energy sources are constantly replenished. The primary renewable energy source is sunlight, which gives heat and light. It is used to power our homes and businesses as well as to drive our cars. Wind is another renewable energy source, which generates electricity by spinning turbines. We have been using it since the first began to harness the wind for millennia. We employ biological processes to create alcohol (a alcohol-like substance that is clear and transparent that can be used for 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 is based on nature’s water cycle to harness the power of swiftly flowing water, which is used in turn to generate electricity.
https://leonardogiombini.it/2018/06/02/leonardo-giombini-e-le-energie-rinnovabili/
