Essay on Solar Energy
2485 Words10 Pages
Solar energy is the most ancient kind of energy found on earth, for it is as old as the sun. "Solar" means from the sun. The earth is only one of the many planets which is bathed in the sun's overflowing energy. Every second the world receives 95.8 trillion watts of power…just think about that for a minute. Think about how much power the earth just received in the time it took you to read this sentence? It is well beyond the amount of power used in one day. It has the potential to satisfy all our energy needs forever without ever having to use the pollutive fossil fuels ever again. "The problem however, does not lie in the limited source, as do fossil fuels, but in harnessing…show more content…
In the 1690's an Italian scientist invented a solar furnace that was so hot it could shatter a diamond, one of the hardest substances on earth (Asimov 119).
The real question around the beginning of the 19th century concerning solar energy was "could the sun produce electricity directly?" The main motivation behind this desire was that electricity could be stored in a battery, and used later. It would not be necessary to use the device in the sunlight. All inventions failed, until Frank Shuman, an engineer from Pennsylvania finally made a breakthrough. He built an experimental plant that used black troughs covered in glass with a few inches of water. When exposed to the sun, the water got very hot, causing it to circulate and power an electric generator. His data was so convincing that he got financial backers and built the world's first solar electric power plant in Egypt. However, the Eastern Sun Power Company went out of business even though it was using free fuel. It didn't produce enough electricity for the area that it used, 14,000 sq. ft of sun-collecting land (Zweibel 48).
In 1954 Bell Laboratories invented the first photovoltaic (or solar) cell, made from the semi-conductor silicon, and other elements. It was the first way to convert sunlight directly into electricity. When the space program was launched in the 60's, it
Solar energy is considered to be the best option for the people and modern industries as it belongs to the renewable category. With the disappearance of the fossil fuels from the planet and their rising costs has forced countries to switch over to a sustainable energy source. Sun is the biggest energy supplier and is fully capable of meeting the energy needs of earth in the distant future.
No pollution: Used as an alternative to petrol, the solar power doesn’t pollute the environment and delivers clean and reliable energy to the users. It doesn’t emit harmful carbonic gases into the atmosphere. As a result, people can ensure electrical supply to their homes without burning coal. Moreover, the users do not have to grapple with the storage issues related to fossil and nuclear fuel. Solar panels also do not make noise and emit toxic fumes into the atmosphere.
Also read:Importance of trees
Renewable energy: As long as the sun exists in the space, solar energy can be generated for free. It is a game changer as far as ensuring energy security to the people. With rising electricity bills in the household, people are increasingly installing solar panels on their rooftops to supplement the production of electricity. It will help them to reduce the energy expenditure to a great extent. Solar energy can provide power in places with remote accessibility. The only drawback of the solar panel is that it might not work full throttle during a cloudy day.
Cost effective maintenance:Advancement in technology has helped to lower the maintenance of the solar panels. In order to increase power, more such devices can be added to the system. Usage of solar energy has resolved the problems of many homeowners. The cost of the solar panel might seem to be more, however, it can easily be recovered after 10 years. One of the most important benefits of the solar energy is that it doesn’t initiate recurring cost.
Simplistic installation: Unlike the conventional mode of electricity, the installation of the solar panels is quite simple. Due to lack of wires, the total cost of upkeep is drastically reduced. In addition, the panels do not require space as they can b easily placed on the roof top of the building or the single family homes. Since the solar energy is installed in a distributed fashion, large-scale investment is not required.
Long term warranty: Solar panels can last for a very long time as various companies provide warranties ranging from 20 to 25 years. Since the device doesn’t contain moving mechanical parts, they are bound to last for a very long time. Solar energy has been providing powers to the areas where it is not possible to supply electricity in conventional mode.
Conclusion: The world is increasingly looking for alternate options to the coal which is a polluted source of electricity. It is vital for the energy-hungry economies around the world to rely on plenty of sunshine to generate renewable energy source such as solar power. In a nutshell, it can be said that solar energy is the harbinger of independence from the clutches of fossil fuels.