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Advantages and disadvantages of solar energy
What is the importance of solar energy
Renewable energy effects on the environment
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Solar power is a form of electricity generated from the energy obtained from the sun. This conversion may occur indirectly through the concentrated solar power (CSP) concept or directly by use of photovoltaics (PV). Analysts indicate that the energy released by the sun to the earth exceeds the power consumed by human beings by 35,000 times (Armentrout and Patricia 50). Excess energy, in the form of solar radiation, is reflected back to the atmosphere. This shows the underutilized capacity of solar energy in attaining sustainable developments. The photovoltaic systems do not release greenhouse gases in the power generation process. Moreover, they can convert sunlight into electricity even in conditions of low solar energy. This proves that solar power can be available for use in domestic or commercial buildings even on cloudy days. In contrast, the indirect conversion of solar energy through CSP techniques involves the generation of heat energy and using the resultant steam to operate power generators (Hirschmann 36). Similar to the photovoltaics structure, this system does not have any environment-degrading emissions.
The high-energy intensity obtained from the sun is the main reason why solar power is considered reliable and useful in establishing and maintaining profitable commercial projects with the main aim of increasing the local and global economies (Mahaney 112). For instance, various scientific experts have proved that the sun is able to provide the world with enough power to run all domestic and commercial projects for a year by shining for one hour. This fact is the underlying principle behind the recent operations of the National Center for Photovoltaics (NCPV). This national agency seeks to use solar power to cater ...
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...vestors should collaborate in increasing the production capacity of solar energy. This is because of its numerous benefits, which include cost effectiveness in the installation, generation, and maintenance, as well as its renewability. In addition, it is a reliable source of energy especially due to its availability in all seasons of the year in significant portions. With the advanced technologies in the modern world, the general population in different countries will benefit from this scientific discovery without incurring huge costs at the domestic and commercial platforms. Other subsections that should adopt solar power systems include academic institutions and government agencies. In addition to facilitating economic developments, the maximum utilization of solar energy will help in solving the problem of global warming since it does not utilize fossil fuels.
The sun has been a major aspect of life since the beginning of time. People used many other forms of energy before electricity was discovered. There has been a debate over energy resources for years. Many people are worried about what current energy resources may be doing to the environment. Oil spills and nuclear power plant mishaps have only been a few accidents that have had a big impact on the environment and the people who inhabit it. There are plenty of energy sources that do not harm the environment and are still able to get the job done. Solar energy is one energy alternative that will insure the betterment of the country and, at the same time, protect the natural environment.
One of the issues that has a significant influence on sustainable economic and social development is energy. The utilization of energy results in climate change owing to its impact on environment by greenhouse gas emissions. This is resulted from the convention of using oil, gas, and coal that emit CO2, NOx and other poisoning substances into the air. The national strategy of China is to reduce this pollution by replacing fossil fuels with alternative energy such as wind, nuclear, geothermal, hydropower or solar energy. (Zhen 2008). Qian and Ling state that Northwest China is an ideal place to develop solar energy, the energy used by absorption of sun radiation, because there is a very wide access to sun heating, which is about 2000 hours a year. (Qian and Ling 1998). However, since there is a very little support from science, government and market, that fact causes the main difficulties to popularize this energy. Despite high prices some of the solar energy technologies have been already installed, and after several years’ costs decreasing the economic growth enables China to achieve the highest level of solar energy development in the world in 10 years.(Bullis 2010, 53). Although there are many useful and perspective features of applying solar energy technologies, the purpose of this study is to analyze advantages and disadvantages of the impact of solar energy and using these technologies on environment and economy in China. Firstly, there will be discussed the role of solar energy in environmental, socio-economical, and political issues. Then several kinds of solar energy technologies and their application will be demonstrated and analyzed. Finally, the answer for the question whether China should spread the development of the...
Did you ever think about where your drinking water comes from? The water that we drink was initially sea water that has undergone a scientific process called desalination. Desalination is a chemical process in which natural compounds are separated from water, making the water clean and drinkable. Traditionally, sea water is propelled through hydraulic pumps which create a flow to separate the water from the sea salt. Hydraulic pumps require certain chemicals that are harmful to humans and these chemicals sometimes are cross-contaminated in the drinking water being produced. Personally, I don’t want to drink chemicals that are threatening to my life and that cause harm to the environment. Many people would be uncomfortable if they knew what chemicals their drinking water may contain, especially if their children also consume it. The major drinking water producers should rely on solar energy to desalinate water which is a newer, cleaner, and safer alternative energy source.
The prime advantage of this approach to harnessing solar energy is that the process is simplified by combining energy gathering and storage into a single step. This process is robust, stable and cheap. One limitation of this process is, while this is useful for heating applications, production of electricity would require another step using thermoelectric devices or producing steam to run a generator.
Though this statement is supported by the International Energy Agency (IEA), an authoritative international institution that making his statement much credible, we should realise that there is an underlying assumption for this premise to be true, that is, the current policies are unchanged. Since we are not sure whether the current policies would continue or not, this premise is not necessarily true. On the contrary, according to another report by IEA, solar electricity is estimated to cover 25% of the world’s total electricity needs by 2050, taking up the largest portion of all sources of electricity (IEA,
The world currently functions through the use of fossil fuels. However, fossil fuels possess two significant disadvantages. Fossil fuels harm the global environment because they enhance the greenhouse effect by releasing carbon dioxide, and they release other harmful gases such as sulfur dioxide and nitrogen dioxide.1 Also, fossil fuels are limited and will run out in the near future if current rates of consumption are maintained. Photovoltaic cells that convert solar energy to electrical energy solve both of these problems. Although the production of photovoltaic cells causes some pollution, photovoltaic cells do not emit harmful gases nor do they pollute the environment. Solar energy is virtually unlimited since the Sun will continue its fusion reaction and provide light energy to the Earth. Solar energy cannot be absorbed on dark or cloudy days, but if it can be stored, solar energy gathered from luminous periods can be used during those dim days.
The future of the United States solar energy industry will be shaped not only by economic growth, but also by the rate of declining oil resources and the global realization of the consequences of human induced climate change. Political responses to this realization in the United States include; new policies, legislature, and tax incentives to both businesses and private households to promote growth and investment in the solar power industry.
Preview: Today I will discuss the potential that solar power has to become this country’s main supply of energy and the latest research that can make solar power more efficient and cost effective. I will also present the environmental benefits that come with using solar power over other and more harmful forms of energy.
Saini, Keshav. "Solar Thermal Energy Pros and Cons | Environmental Issues." Environmental Issues Blog. N.p., 6 Jan. 2012. Web. 04 Mar. 2014. .
Solar is a viable alternative energy source with solar panels becoming more affordable and more efficiently designed.
How Efficient is Solar Energy Technology? Engineering Challenges. n. d. a. d. a. d. d. 8 April 2014. http://www.engineeringchallenges.org/cms/8996/9082.aspx>. How do Nuclear Plants Work?”
I am certain that all have heard of the terms greenhouse gases, fossil fuels, and global warming. Have you ever questioned what will happen if nothing is done about the environmental problems facing the world today? What if I answer you that, we can merely use the power from the sun to power up our entire planet without the use of harmful energy sources, which affect our atmosphere? The power from the sun is what we call solar power. Solar power is the energy that comes from the sun as light and heat energy, and then it is later converted into electrical energy through solar panels (Nelson, 2008).
The Earth captures around 342 W/m2 of energy from the sun. This energy is in the form of solar radiation, which the atmosphere reflects about 77 W/m2 and will absorb around 68 W/m2 of solar radiation annually. Therefore, the Earth’s surface is receiving, on average, about 197 W/m2 of solar radiation annually. This amount of energy received is roughly more than 10,000 times the amount of all energy humans consume per year. This energy can be used to produce electricity or heat. This energy source is not being used to it’s potential considering how much effort would come into effect to store and transport this energy.
One of the most compelling arguments for the use of renewable energy is how many forms exist of it. Nuclear power, solar power, wind power, tidal power, hydroelectric power, pumped storage, wave power, geothermal power, biomass, and biogas are the most widely known renewable energy sources (Darvill, 2013). This large selection of fuels supports the idea of renewable fuels one day powering the entire planet. All the sources of energy have different niches and benefits. Solar energy is extremely ef...
Regarding solar power, Mistry claims that although the solar power does not generate pollution, it has a lot of costs. Building solar panels with photovoltaic equipment has high costs. For instance, a photovoltaic system for a home can cost around $35,000 (Kumar, 2012). However, if our goal for the future is to create a healthy environment, switching fossil fuels for solar power might be the best choice to achieve that goal. According to Kumar (2012), Solar power is a clean and renewable energy so, it decreases the dependency on fossil fuel and also reduces the air pollution.