Different energy sources provide us with the energy we need to live and work. Geothermal, solar, wind and biomass are a few of the sources. These sources aren’t just a major source for electricity, but they can also be used for heating and transport. The main challenge for these energy sources is that they may cause greenhouse gas emissions when used to produce electricity. This leads to the need for more environmentally sustainable energy sources.
Fossil fuels are the most well-known type of energy. They include oil, coal, and natural gas. They were formed millions of years ago when prehistoric animals and plants died and were then buried under layers of sedimentary rocks. In the right conditions the fossil fuels slowly transformed into carbon-rich materials that, when burnt produce energy. They are not renewable because they will run out in our lifetimes, or in many lifetimes.
Renewable energy sources are replenished continuously. The sun is the largest source of renewable energy, since it supplies heat and light. It is used for our homes business, cars, and homes. Wind is a renewable energy source that produces electricity by spinning turbines. Since the first time people realized how to harness wind we have been utilizing it for millennia. We use biological processes to produce ethanol (a clear, alcohol-like substance which can be used as fuel) from food waste and crops.
Hydropower is the most important renewable energy source in America, however biofuels and wind will soon surpass it. Hydropower is a natural cycle to harness water’s rapid flow, which is used to produce electricity.
