Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Benefits of renewable energy Essay
Benefits of renewable energy Essay
The impact of fossil fuel consumption
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Benefits of renewable energy Essay
The drastically increasing prices of fossil fuel and gasoline are making it harder for us to afford it. The fossil fuel is a natural resource which is reducing the supply of our reserves every second. It is one of the main sources for spreading pollution and global warming which is affecting our health as well as our environment. Solar energy is a suitable replacement of fossil fuel in term of green environment, recyclable, affordability and long lasting. Although, there are still many issues with solar energy which needs to be solved, but its availability far exceeds any conceivable future energy demands. A number of benefits could be gained from solar energy which includes dishes that concentrate the sun rays to heat fluid which drives engine and produce power. The installation of solar energy panel is very convenient and it could be attached on the roof of the car and building or any surface which has direct access to sun light in order to generate cheap and affordable electricity.
Most of the commercial solar cells are made up of silicon which converts sunlight into electrici...
Photovoltaic cells are found everywhere today: your home, work buildings, schools, and more. There are two types of Photovoltaic Cells: Organic and Inorganic. The type of cell that are most often found and used are inorganic cells. Inorganic cells are known to produce much more energy than organic cells. Although the main element used in these inorganic cells is Silicon, there are many more elements that are used in inorganic photovoltaic cells. There is monocrystalline, polycrystalline, amorphous, and microcrystalline Si, the III-V compounds and alloys, CdTe, and the chalcopyrite compound, copper indium gallium diselenide (CIGS). These photovoltaic cells are built for large scale power generations. All of these semiconductors have energy band gaps between 1.1-1.7 eV.
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.
Everyone on earth is familiar with solar power; it is the energy that the sun gives to the earth and is used by various organisms in various ways. Plants use solar energy to make food; cold-blooded animals use it to get their body temperature high enough to function while warm blooded animals use it for warmth. In the history of mankind, solar power has been critical. However, it is only in later years that the human race has acquired the technology necessary for collecting and storing solar energy. Solar panels and their attendant hardware make it possible to harness the energy, store it and transport it. The equipment has now become so small in some cases that one can wear it on his or her person. The paper shows
A Photovoltaic solar cell (PVSC) is an electrical device which converts light from the visible spectrum into direct current (DC) electricity (Honsberg). The International Space Station (ISS) originally used purified silicon solar cells for electrical generation. Silicon cells were primarily used as a result of their relatively light weight and heat conduction properties (Wittry, 2005). In 2001, two 38ft x 239ft solar panels were installed on the ISS. The new cells were multi junction solar cells comprised of gallium indium phosphate on gallium arsenide on germanium. The germanium based cell resists oxidation, unlike its silicon oxide counterpart that experienced degradation in the upper atmosphere due to exposure to oxygen (Wiebusch, 2001). Furthermore, the Silicon based solar cell (deployed on the
Silicon is a metalloid and has the atomic number of 14 on the periodic table of elements. It is one of the most abundant elements in the universe, and usually is contained in dirt, soil, sand, and it makes up of about 27.7% of the Earth’s mass (Abundances of the Elements in the Earth's Crust, , Hyperphysics, Georgia State Univ.). One of the special features of silicon is that it is a semiconductor. This means that under certain circumstances, silicon will conduct electricity. Scientists have harnessed this special characteristic of silicon and invented the microchip.
Chargers which are on the market today use a wide variety of solar panels, from thin film pan...
In this modern fast paced world that we live in, there are many issues that are looked over, energy is one of these. As a world, we are dependant on dwindling fossil fuel supplies and take for granted electricity, oil, and gas. There are four completely renewable sources of energy around us that should be used and developed, they are: wind, growing plants, flowing water, and the sun. These sources of energy are the ones we should be tapping, because they are reliable and renewable. Harnessing the suns energy is the most certain and ultimate energy source. Looking at a brief history and some facts about solar energy, a glimpse of the future can be seen, a future not dependant on fossil fuels.
Solar energy is a new concept that many are not familiar with, therefore, comprehending can be challenging. After a long attempt to discover how to use the sun's energy, scientists discovered solar panels that will absorb the rays that can be used to produce energy. "The sun supplies us with about 20,000 times the energy we can actually use" (“Solar Energy,” Earth Explorer). Solar energy is a leading form of sustainable energy which is used around the world to supply heat and electricity to homes. On the smaller scale solar energy can be used to recharge a phone, supply a calculator with power and run many other things. Solar energy can be an avenue to many advances fr...
Energy is the basic necessity of daily life. Nowadays, dependence on fossil fuels for energy needs becoming lower in numerous countries due to the potential of renewable energy to supply sustainable energy to the huge populations in many developing countries who are short of clean and continues energy. Generally, renewable energy can be defined as energy that is derived from natural resources which are constantly replenished and theoretically inexhaustible. Fossil fuels on the other hand can be described as energy that cannot be renewed and will eventually diminish. Thus, in many developing countries renewable energy is the alternative energy to replace non-renewable energy or commonly known as fossil fuels. In addition, according to Sorensen (2004), there is a greater demand for renewable energy sources nowadays due to the uncertainty of fuel price rise in living expenses. Commonly, there are many types of renewable energy available in our world such as wind power, biomass energy, solar energy, hydroelectric power and geothermal energy. However, the main three example of renewable energy are hydroelectric power, solar and biomass energy (Refer to Figure 1 in Appendix 1).
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.
Although Solar Energy is a flexible source of where energy could be directly or indirectly converted into forms of energy, it’s still not perfect. With its inefficiency, scientists are trying to find alternative solution to store solar cells for as long as possible. The main process of capturing solar energy happens at the nanoscale. With solar cells, it gets more efficient the tinier it gets. The converting rate of solar energy is equally price competitive as fossil fuel, with a dollar per watt of solar energy. With the help of nanotechnology, it could help raise solar energy conversion efficiency and help lower costs making it the ultimate method of raw energy conversion. To make sure the process of generating energy is kept at a low cost and energy output...
According to Mr. Solar.com, “this type of energy production, known as the Photovoltaic Effect, is achieved by solar panels converting sunlight into energy. Solar panels are made up of several individual solar cells, composed of layers of silicon, phosphorous (which provides the negative charge), and boron (which provides the positive charge). Solar panels absorb the sunlight’s photons and by doing so initiate an electric current, producing electrons. The resulting energy generated from photons striking the surface of the solar panel allows electrons to be knocked out of their atomic orbits and released into an electric field generated by the solar cells, which then pull these free electrons into a DC or directional current.” This electricity then proceeds to a mechanical room beneath our house to a charge controller, which regulates the amount of energy sent to our 24V batteries to be stored.
There is a Fresnel lens on top of every solar cell. Solar cells, also known as photovoltaic cells, are essentially a mechanical device that light into electricity. It is able to do this because of the photovoltaic effect. The photovoltaic effect is essentially when, due to the introduction of light electrons on a surface are expelled out. Due to this ejection, electric energy is generated. Chemically, electrons are jumping across valence bands and are becoming highly excited. This is what accelerated energy. This is critical to the working of solar concentrators because ...
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 photovoltaic effect, electricity can be created directly from sunlight. Some semi-conductor materials that are exposed to sunlight can create electron-hole pairs, which can be collected to produce electricity. This occurs when photons have energy above a certain threshold. These photons have shorter wavelengths. In silicon, the threshold for electron-hole production is in the infrared region of the electromagnetic spectrum.