Diverse energy sources provide us with the power we need to live and work. Geothermal, solar, wind and biomass are a few of the sources. In addition to being a major source of electricity they can also be used for transportation and heating. The main issue for these energy sources is that they may cause greenhouse gas emissions when used to generate electricity. This is why it is necessary to find more sustainable energy sources.
Fossil fuels are the most popular type of energy. They include oil, coal and natural gas. They were formed thousands of years ago, when prehistoric animals and plants passed away and were buried under layers of sedimentary rocks. Under the right conditions, these fossil fuels were gradually transformed into carbon-rich substances which, when ignited create energy. The fossil fuels cannot be renewable since they will be depleted in our lifetimes, or in many years.
Renewable energy sources are replenished continuously. The sun is the main source of renewable energy, because it is a source of warmth and light. It is used to power our homes and businesses, as well as to drive our vehicles. Wind is a renewable energy source that produces electricity by spinning turbines. We have used it since humans first discovered how to harvest the wind for millennia. We also use biological processes to create the ethanol (a clear alcohol that can be used to create fuel) from waste and crops.
Hydropower is the most important renewable energy source in the United States, but biofuels and wind will soon take over. Hydropower is a natural cycle to harness water’s rapid flow, which can be used to produce electricity.
https://leonardogiombini.it/2019/05/11/cosa-sono-gli-impianti-a-biomasse/