Mufliz Khan. Dynamic skills. Gajaraj Gartia. Mukul Garg. Sarbjeet Kaur. Jaspinder Singh. There are nine major areas of energy resources. They fall into two categories: nonrenewable and renewable. Nonrenewable energy resources, like coal, nuclear, oil, and natural gas, are available in limited supplies. This is usually due to the long time it takes for them to be replenished. Renewable resources are replenished naturally and over relatively short periods of time.
The five major renewable energy resources are solar, wind, water hydro , biomass, and geothermal. Since the dawn of humanity people have used renewable sources of energy to survive -- wood for cooking and heating, wind and water for milling grain, and solar for lighting fires. A little more than years ago people created the technology to extract energy from the ancient fossilized remains of plants and animals. These super-rich but limited sources of energy coal, oil, and natural gas quickly replaced wood, wind, solar, and water as the main sources of fuel.
Careers in both the renewable and nonrenewable energy industries are growing; however, there are differences between the two sectors.
Search GO. What's the difference? A brighter future means renewable energy Right now, fossil fuels still make up a large portion of the energy market. Search When autocomplete results are available use up and down arrows to review and enter to select. While renewable energies fall entirely under natural sources not subject to depletion, non-renewable energies are in turn divided into two main categories: fossil and nuclear fuels.
Let us now consider their production process and the extent of their environmental impact. Fossil fuels , also known as hydrocarbons, are the first type of non-renewable energy. By far the most widespread energy source in the world, fossil fuels arise from all the organic material that has accumulated inside the Earth over the centuries.
The main hydrocarbons are oil and coal, but methane gas is also catching on for energy production. To produce energy, fossil fuels must be burned, whereby they release a high amount of CO2 and other toxic agents into the atmosphere; despite this, their generation costs remain under those of renewable energy sources.
As for nuclear fuels, the other non-renewable source , they arise from the extraction of uranium which is then processed and refined. Growing concerns about air pollution and the scarcity of hydrocarbons have led many countries to ramp up their research efforts into renewable sources for energy production. First of all, not all energy produced from renewable sources is sustainable : in fact, not all of them are produced with zero impact.
By way of example, producing energy from biomass might require burning wood or pellets, thus producing gaseous particles that disperse into the environment and contribute to pollution.
0コメント