We require a variety of energy sources to live and work. They include wind, solar and geothermal as well wikipedia reference as biomass sources. In addition to being the primary source of electricity, these sources can also be used to transportation and heating. The main challenge with these energy sources is that they could cause greenhouse gas emissions when burned to produce electricity. This means that there is a need for greener sources of energy.
Fossil fuels are the most common form of energy. They include oil, coal, and natural gas. They were created millions of year ago when prehistoric animals and plants passed away and were buried under layers of sedimentary rocks. When the right conditions, they gradually transformed into carbon-rich compounds that, when ignited, generate energy. These fossil fuels cannot be recycled as they will run out in our lifetimes or even in a number of lifetimes.
Renewable energy sources, on the other hand, are continually replenished. The sun is the largest source of renewable energy since it provides light and heat. It is used to power our homes and businesses and to drive our vehicles. Wind is a renewable energy source that generates electricity by spinning turbines. We have been using it since we first discovered how to harvest the wind for millennia. Finally, we use biochemical processes to create an ethanol (a clear alcohol that can be used to fuel) from crops and waste.
Hydropower is the most important renewable energy source in the US, but biofuels and wind are likely to surpass it. Hydropower is a natural cycle to harness the power of water’s rapid flow, which in turn is used to generate electricity.