History of Solar Energy Essay

     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).

The greatest energy that can be produced by the sun is electricity. Photovoltaics, or solar cells, capture the sun and convert it into electricity. Solar cells were discovered by the Europeans back in the 1870’s when they used selenium to develop the telegraph. They found that when light hits selenium it would produce and electrical current. Soon enough there were many scientists and engineers working on photovoltaic systems. Silicon and Selenium proved to be the two best elements to conduct electricity when light hits them. Photovoltaic systems (PV cell) work by converting the suns light into electricity. A semi conducting material absorbs the sunlight, that energy knocks electrons loose from their atoms, this allows the electrons to flow through the material to produce electricity. The further development of solar cells can be attributed to the satellite industry. Solar cells were expensive and there was no use for them until satellites came. Because it is impractical to tether satellites it became important to develop solar energy at any cost that would power these satellites. This created a sustainable market for solar power, the first of its kind.

The ‘Valley House’ (figures 1.1 - 1.3, page 3) exemplifies energy efficiency in both its locality and materials used. It has been strategically positioned within the existing topography on a north facing aspect to take advantage of the sunlight consistently throughout the day, minimising the need for daytime lighting, thus saving electricity. The main power

However, very few realize the urgency in dramatically improving our living conditions in order to preserve the resources that are diminishing in front of our eyes. In the early 1990s, scientific researchers began recognizing the shifting experienced in global climate change. Upon acknowledging the fact that global warming did exist, scientists sought after ways to alleviate this developing social problem. In order to use sources already existing in our environment, alternative energy resources, such as solar energy, have come to the forefront in solutions. The implementation of technologies that use solar energy, that is any form of energy radiated by the sun, date back to A.D. 100 when Northern Italian summer homes with windowed rooms were constructed using thin sheets of mica or selenite (Skylar and Sheinkopf 7). From that time forward, inventors have created ways in which solar energy can be used to fuel our daily lives. Innovations in solar water heating, solar pool heating, solar electricity, and even solar cooking are currently offered as an alternate means of energy. The question remains, however, as to why more Americans are not taking advantage of these accessible energy-saving resources. In comparison to other energies used to fuel the nation, “solar energy is the cleanest, safest, most environmentally gentle energy option” the United States has

Since metal reflects the heat of the sun, aluminum roofing minimizes the building’s midday heat gain,

These are the panels that are placed on a home or business that capture the sun's rays and convert them into energy.

Imagine a world without light, a world filled with so much darkness that it would be nearly impossible to see anything, to use anything or to even function. A world without light would be a world without energy, without being able to use our phones 24/7, a world without all the comforts, mainly a world with hardships and struggles. We live in a world where energy is needed for everything. Nothing really works without electricity. For example, Energy is constantly being used to charge cellular devices, warm food in the microwave or even to charge electrical cars. The world is shifting it went from the extracting of unnatural fossil fuels to the discovery of a more natural way call solar energy. In order to know how crucial solar energy is it

Actually, the photovoltaic effect (creating electricity from sunlight) was first discovered in 1839. The first solar panel was made in 1882. Solar energy is not exactly new on the scene.

I am certain that all have heard of the terms green house 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). This kind of power is completely free, right? Why should we put a lot of expense on other sources of energy, when there is a complete free

In order for one to further understand the importance of solar energy, the problem of global warming must be explained. As defined by Webster’s Dictionary, “Global Warming” is an increase in the earth’s average atmospheric temperature that causes corresponding changes in climate and that may result from the greenhouse effect. With an average increase in atmospheric temperatures, our planet is slowly deteriorating. In order to stall or halt this global destruction, countries must turn to solar energy as a cleaner alternative to the depletion of fossil fuels. Solar energy creates a homeostasis for the climate. Due to its ability to decrease global climate changes, solar power can address global warming in several ways.

As time went on architecture in several examples exemplified the use of solar power among building became less of a resource.

Solar energy is the most plentiful and purist renewable energy source available. Because it is completely natural, it is considered to be a clean energy source. It does not disrupt the environment or threaten the Eco-systems the way oil and some other energy sources tend to. Nor does it cause greenhouse gases, air or water pollution. Solar energy is an immensely important aspect of life and has been since the beginning of time. Increasingly, we are learning how to harness this important resource and use it to replace traditional energy sources. Modern technology can utilize this energy in a variety of ways, such as; generating electricity, providing light or a comfortable interior environment, and heating water for domestic, industrial, or commercial use. One day solar energy may well become our primary form of energy. This would lead to a clean environment, less money spent on utilities, and a healthier world. It is highly important because it has the potential to allow technology and nature to co-exist peacefully.

Solar energy and its use isn’t new to the world. It has been used by various societies beginning from 7thCentury B.C, when the sun’s heat was concentrated by glass and mirrors to light fires. Today, we have everything from solar-powered buildings to solar-powered vehicles. By and large solar technology has some environmental, economic, psychological and ethical implications for our society. Actions taken by companies and individuals to increase the use of solar technology will create good local jobs, improve our environment and reduce our dependence on foreign oil while doing what’s ethical and moral for our society.

Solar energy may define as the energy received by the earth from the sun. This solar energy is in the form of solar radiation. With the help of solar cells, solar radiation can convert into electricity. Sun is a highly powerful energy source, humans and natures are directly depending on the sun. For example in hydro-electricity the solar energy needed for the evaporation of water after that it returns to earth as rain and provides water in dams. In biomass, the solar energy used that process. Solar cells directly converted solar radiation into electricity, during the process time there is no noise or pollution are there. These cells made with some semiconducting materials. If use solar cells in our home it will help to reduce the greenhouse gas emission, minimise the percentage of carbon dioxide in our atmosphere and mainly reduce the necessity of fossil fuels and natural gas use to produce electricity. According to the Ben Sorensen, solar energy is one of a good source of substitute energy, for the reason that it is renewable, economical and does not pollute our environment. Thus, this essay will be divided into three parts. Firstly, we will talk about fossil fuels and its demerits. Secondly, we will look at the issues and implications of solar energy. Finally, we will focus on the advantageous and disadvantageous of solar energy respectively.

Abstract: The current energy situation with fossil fuels as the main source of the world’s energy has two main flaws: fossil fuels contribute to global warming via the greenhouse effect and they are limited in the quantity that remains. Solar power solves both of these problems and can be captured by utilizing photovoltaic cells. However, photovoltaic cells have their own drawbacks due to their high costs of installation and maintenance.