Different energy sources provide us with the energy we need to live and work. These include solar, wind geothermal, biomass, and geothermal sources. In addition to being an important source of electricity, these sources can also be used for transport and heating. These energy sources produce greenhouse gases when burned to create electricity. This creates a need for more green energy sources.
The most popular type of energy is the fossil fuels, which include coal, oil, and natural gas. They were created millions of year ago when prehistoric animals and plants died and were buried beneath layers of sedimentary rocks. When the conditions were right they were gradually transformed into carbon-rich substances which, when burned create energy. These fossil fuels cannot be recycled because they will run out in our lifetimes, or in many lifetimes.
Renewable energy sources are constantly replenished. The sun is the most important 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 cars. Wind is another renewable energy source, which generates electricity through spinning turbines. Since the first time people realized how to harness wind and harness it, we have been using it for millennia. We utilize biological processes to create alcohol (a alcohol-like substance that is clear and transparent which can be used as fuel) from waste and crops.
Of all these sources hydropower is the biggest renewable energy source in the United States, though wind and biofuels are expected to be the next to take over. Hydropower is based on nature’s water cycle to harness the power of swiftly flowing water, which is used for electricity generation.
