Different Energy Sources

Diverse energy sources provide us with the energy we require to live and work. Solar, wind, geothermal and biomass are some of the sources. In addition to being a major source of electricity they are also used for heat and transport. These energy sources can emit greenhouse gases when burned to create electricity. This means that there is a need for greener sources of energy.

The most popular kind of energy is called fossil fuels, comprised of coal oil, natural gas. They began to form millions of years ago when prehistoric plants and animals passed away and were then buried beneath layers of sedimentary rock. In the right conditions they were gradually transformed into carbon-rich compounds which, when ignited generate energy. The fossil fuels cannot be renewable, as they’ll run dry in our lifetimes or in a variety of lifetimes.

Renewable energy sources, on the other hand are constantly replenished. The most important renewable energy source is sunlight, which provides light and heat. It is used to power our homes and businesses as well as to drive our cars. Wind is an energy source renewable that produces electricity through spinning turbines. Since the first time people realized how to harness wind, we have been using it for millennia. Finally, we use biochemical processes to create an ethanol (a clear alcohol that can be used as a fuel) from waste and crops.

Among these sources hydropower is the biggest renewable energy source in the United States, though wind and biofuels are expected become the dominant source in the near future. Hydropower is based on nature’s water cycle to harness the power of flowing water, which is then used to generate electricity.

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