Different Energy Sources
We require different sources of energy to work and live. These include wind, solar geothermal, biomass, as well as geothermal sources. In addition to being the primary source of electricity they can also be used for heat and transport. The biggest issue with these sources of energy is that they can cause greenhouse gas emissions when burned to produce electricity. This creates the need for greener sources of energy.
The most widely used kind of energy is called fossil fuels, comprised of coal oil, natural gas. They began to form millions of years ago when animals and plants of the past passed away and were then buried beneath layers of sedimentary rock. If the conditions were right, these fossil fuels were gradually transformed into carbon-rich substances that, when burnt generate energy. They are not renewable since they will be exhausted in our lifetimes, or in many lifetimes.
Renewable energy sources are, however, are continually replenished. The primary renewable energy source is sunlight, which supplies heat and light. It is used for our homes as well as for businesses and automobiles. Wind is renewable energy source that produces electricity through spinning turbines. Since the first people discovered how to harness the wind, we have been using it for millennia. We utilize biological processes to produce the ethanol (a alcohol-like substance that is clear and transparent that can be used for fuel) from the waste of crops and other materials.
In the list of sources hydropower is by far the most important renewable energy source in the United States, though wind and biofuels are expected to become the leading source of energy in the near future. Hydropower uses the natural water cycle to harness water’s swift flow, which produces electricity.