https://leonardogiombini.it/2020/06/02/primi-3-punti-chiave-di-unesperienza-centralizzata
Different energy sources provide us with the energy we need to live and work. Solar, wind, geothermal and biomass are among the sources. These sources are not just an important source of electricity, but also can be used to heat and transport. They can also emit greenhouse gases when burned to produce electricity. This creates a need for more sustainable energy sources.
Fossil fuels are the most well-known form of energy. They include coal, oil and natural gas. They began to form millions of years ago when animals and plants of the past died and were covered by layers of sedimentary rock. Under the right conditions these fossil fuels gradually transformed into carbon-rich substances that, when burned, produce energy. The fossil fuels cannot be renewable as they will end up being depleted in our lifetimes, or in many lifetimes.
Renewable energy sources however are continuously replenished. The primary renewable energy source is sunlight, which produces warmth and light. We use it for our homes, businesses, and cars. Wind is an energy source that is renewable and produces electricity by spinning turbines. We have been using it since people first began to harness the wind for millennia. We use biological processes to create alcohol (a clear, alcohol-like substance that can be used to make fuel) from waste and crops.
Among these sources hydropower is the most significant renewable energy source in the United States, though wind and biofuels are expected to become the dominant source in the near future. Hydropower uses the natural water cycle to harness water’s swift flow, which in turn can be used to produce electricity.