In present clip, the inquiry about sustainable usage of natural resources has become really of import all over the universe. Peoples start to recognize that nature can non supply more resources that it has, and that the natural resources consumed a batch. Therefore, there should be found a manner how to work out this peculiar job – energy crisis.
Consequently, we should reply the inquiry if the widespread of renewable energy is as serious option to the usage of fossil fuels or non. There is no right reply to this inquiry, but if we decidedly want to state ‘yes ‘ or ‘no ‘ , it will be better to burdening up the pro at Contra. So allow us happen out the causes why renewable energy is a serious option to the fossil fuels.
First of all, fossil fuels are non-renewable. Natural gas, coal and oil are the most common illustration of fossil fuels, and they are the three chief types of fuel that people largely use and depend on. Seitz ( 2008 ) states that ‘according to many analysts the universe would non run out of oil, but in a few decennaries deficits will go prevailing ‘.
Harmonizing to the Energy Information Agency, about 93 % of the universe ‘s energy beginnings are fossil fuels, and renewable energy is merely approximately 7 % . ( 2, 2008 ) Besides firing fossil fuels creates C dioxide, which is the nursery gas that leads to planetary heating and earnestly amendss our planet.
Second, renewable energy beginnings, such as hydropower energy, solar energy and weave energy are renewable, efficient and non-polluting or doing small pollution. They are simple: all you need is sunlight, running H2O and blowing air current.
Last, spread outing the usage of renewable energy will hold a positive impact on employment, harmonizing to more than a twelve independent surveies analysing the impact of clean energy on the economic system.
Greater trust on renewable energy would hold big, positive impacts on economic system, making important Numberss of new occupations, driving major capital investing, stabilising energy monetary values, and cut downing consumer costs. ( Flavin C. 2006, p.10 ) . By contrast, employment in the dodo fuel industries has been in steady diminution for decennaries, in big step due to turning mechanization of coal excavation and other procedures. ( Flavin C. 2006, p.10 ) .
As these three types of renewable energy were mentioned allow us discourse them more specific.
Hydropower energy is the most developed engineering for renewable energy. The chief potency that this type of energy has is that it can be used in multipurpose country. For illustration, benefits of hydropower are deluging control, irrigation and public H2O supplies. ( 6 ) Hydropower energy is normally generated signifier falling H2O, doing small pollution and it is a type of clean energy. Hydropower resources are normally divided into two chief classs.
As it is mentioned, the first class is resources that require semisynthetic dike construction with high hydraulic caputs ; the 2nd 1 is a “run-of-river” system that require minimal dike construction and with low hydraulic caputs. ( 4, 2000, p.44-45 ).
Similarly, World Bank ( 2004 ) believes that hydropower can play important function ‘in poorness decrease in developing states ‘ . In add-on, World Bank ( 2004 ) besides claims that ‘currently about 19 per centum of the universe ‘s electricity is produced from hydropower ‘ and that the nursery gas emanations ‘from most hydropower workss are comparatively low ‘ .
It is besides of import to burden the facts about advantages and disadvantages of hydropower energy. On the one manus, hydropower is a clean energy beginning. It does non foul the air like fossil fuels do. ( 6 )
Hydropower plays a major function in cut downing nursery gas emanations. The maintain cost is comparatively low. It is renewable. The engineering is dependable and proven over clip. ( 7 ) . On the other manus, if H2O is non available, the hydropower workss will non bring forth electricity. ( 6 ) USGS ( 7 ) studies that hydropower energy is non perfect and has some disadvantages. For illustration, ‘high investing cost, flood of land and wildlife home ground, alterations in reservoir and watercourse H2O quality, supplanting of local populations ‘ .
Solar energy is the 2nd type of renewable energy that was mentioned in this essay. Solar energy is the 2nd most common type of renewable energy. Basically solar energy is the energy of Sun. It helps us to last on our planet, it heats us, it makes 3s turn up, and, largely everything on our planet depends on solar energy. It is possible that ‘our current life can non go on if we remain economically dependent on fossil fuels ‘ , as Hermann ‘s ( 2004, p.4 ) claims, but as for me, we can non foretell the hereafter and we do non cognize what will go on tomorrow. So Hermann claims that something is improbable to happen./p & gt ;
It is non so easy to speak about advantages and disadvantages of solar energy. Talking about advantages of solar energy it is necessary to advert some of them. First, solar cells can be used about any topographic point around the universe. Second, solar cells soundless and non-polluting. In add-on, they require small care and have log life-time.
Finally, solar cells can be easy used in topographic points where there is no chief electricity. Now let us travel on to the disadvantages of solar energy. The chief and most of import disadvantage is initial cost. Last, solar cells are wholly depends on conditions, and can be used merely during daytime and sun hours. It is because the lone clip when cells can bring forth electricity. ( 9 )
The last and perchance most interesting type of renewable energy is wind energy. There is an interesting point about air current energy. Wind is a signifier of solar energy ; it is ‘caused by the warming of the ambiance by the Sun, the rotary motion of the Earth, and the Earth ‘s surface abnormalities ‘ ( 11 ) . Seitz ( 2008, 141 ) studies that wind as an energy beginning was by and large used for power every bit good as for the chilling houses, adding that air current energy beginning started to derive regard all around the universe. In recent old ages the widespread of air current energy has been highly rapid, but, for illustration, ‘despite that rapid growing, weave energy amounted to less than 1 % of U.S. electricity coevals ‘ ( 10, p.15 ) .
But as any other type of energy air current energy besides has advantages and disadvantages. Harmonizing to the Committee on Environmental Impacts one of the advantages is that ‘wind energy has the possible to cut down environmental impacts, because it does non ensue in the coevals of atmospheric contaminations or thermic pollution ‘ ( 10, p.15 ) . Another good point about air current energy is that it is ‘one of lowest-priced renewable energy available today ‘ ( 11 ) .
In decision there is a really serious inquiry if the widespread of renewable energy is as serious option to the usage of fossil fuels or non. Three chief types of renewable energy were considered. So there is a opportunity in the nearest hereafter that renewable energy beginnings will to the full displace fossil fuels. It may go on, but non really shortly and likely merely when there is nil to pull out or mine. Now both renewable and non-renewable energy will be used at the same time. Peoples are non ready yet to abandon fossil fuels, and are non ready for passing immense sum of money for renewable energy.
Christopher Flavin. ( 2006, September ) . American Energy. The Renewable Way to Energy Security. Worldwatch Institute.
Energy information disposal. Renewable Energy Consumption and Electricity Preliminary Statistics 2008. hypertext transfer protocol: //www.eia.doe.gov/cneaf/alternate/page/renew_energy_consump/rea_prereport.html
John L. Seitz. ( 2008 ) . Global issues: an debut. Blackwell Printing Ltd.
Committee on Programmatic Review of the U. S. Department of Energy ‘s Office of Power Technologies. ( 2000 ) . Renewable Power Pathways: A Review of the U. S. Department of Energy ‘s Renewable Energy Programs. National Academic Press.
World Bank Staff. ( 2004 ) . Water Resources Sector Strategy: Strategic Directions for World Bank Engagement. World Bank Publications.
U.S. Department Of Energy. Energy efficiency and renewable energy. Advantages and disadvantages of Hydropower. hypertext transfer protocol: //www1.eere.energy.gov/windandhydro/hydro_ad.html
USGS ( U.S. Geological Survey ) . Water usage: hydro electronic power. hypertext transfer protocol: //ga.water.usgs.gov/edu/wuhy.html
Scheer, Hermann. ( 2004 ) . Solar Economy: Renewable Energy for a Sustainable Global Future. Earthscan Publications Ltd.
Bristol University. Advantages of solar energy. hypertext transfer protocol: //www.chm.bris.ac.uk/webprojects2003/ledlie/advantages_of_solar_energy.htm
Committee on Environmental Impacts of Wind Energy Projects. National Research Council. ( 2007 ) . National Academies Press
U.S. Department Of Energy. Energy efficiency and renewable energy. Advantages and disadvantages of Wind Energy. hypertext transfer protocol: //www1.eere.energy.gov/windandhydro/wind_ad.html
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