We require different sources of energy to live and work. They include wind, solar, geothermal, and biomass sources. These sources aren’t only a major source for electricity, but also can be used to heat or transport. The main challenge for these energy sources is that they can create greenhouse gas emissions when used to generate electricity. This creates the need for more sustainable energy sources.

The most popular type of energy is fossil fuels, which consist of coal oil, natural gas. They began to form millions of years ago when animals and plants of the past died and were buried by layers of sedimentary rock. Under the right conditions these fossil fuels slowly transformed into carbon-rich materials that, when burned create energy. The fossil fuels cannot be renewable because they will end up being depleted in our lifetimes or in a variety of lives.

Renewable energy sources are replenished continuously. The most important renewable energy source is sunlight, which gives light and heat. It is https://leonardogiombini.it/2019/03/01/le-biomasse-i-processi-termochimici/ used for our homes, businesses, and cars. Wind is a different renewable energy source, which produces electricity by spinning turbines. We have been using it since people first discovered how to harvest the wind for millennia. We utilize biological processes to produce alcohol (a clear, alcohol-like substance which can be used as fuel) from crops and waste.

Among these sources hydropower is the biggest renewable energy source in the United States, though wind and biofuels are likely to become the leading source of energy in the near future. Hydropower utilizes the natural water cycle to harness water’s swift flow, which in turn is used to generate electricity.