Got a tricky question? Receive an answer from students like you! Try us!

Solar Enegry issues - Essay Example

Engineering and Construction
Pages 3 (753 words)
Download 0


Solar Energy Name Institution Solar Energy The sun provides an implausible amount of energy, which plants change into chemical energy to manufacture their own food. The sun is therefore, the source of energy to most of the renewable power harnessed on earth…

Extract of sample
Solar Enegry issues

A distinctive mesophyl cell contains 30 to 40 chloroplasts. In plants, a strike of sunlight excites one electron in the chlorophyll molecule to bump it up into a higher level of energy. Before it drops back to the initial state, life is enhanced between these two processes and the electron is drawn back within its machinery thus utilizing the energy (Maders, 2010). According to Maders (2010), solar cells are simple in that they are made from specific sources that are neither electricity conductors such as copper wire nor insulators such as plastics. When they are exposed to the sun, they absorb photons which are light particles and other types of electromagnetic radiations. These materials are called semi-conductors as they allow electric currents to be produced. Photons contain several energy amounts depending on the varying wavelengths of the solar range. This level of energy determines what happens immediately the photons hit a photovoltaic cell the place where they pass, get absorbed or reflected. Some of the photons absorbed are used to generate heat, others electricity while some do not reach the external circuit. Similarities between Photosynthesis and semiconductors Photosynthesis and semi-conductors are the same in the sense that they aim to trap solar energy. For instance, plants utilize photosynthesis to trap solar energy to manufacture food. ...
Download paper
Not exactly what you need?

Related Essays

Solar Energy Power (Photovoltaic Systems)
(Daniels 1971: 490) Meanwhile in 1973 another researcher, George O.G. Lof said that the man has to find other energy sources as the use of fossil fuel is unsustainable. For him, the development of technology that captures solar power is much more important. He expounds: The raw energy, in the form of electromagnetic radiation, reaches the earth’s atmosphere at a rate of 170 trillion kilowatts. Even after about one-fourth is scattered into space by clouds and dust, the quantity of energy reaching the land area of the United States is more than 700 times the current demand for all types of…
13 pages (3263 words)
Solar renewable energy
Electricity generation contributes around 19% of the share of renewable out of which hydroelectricity contributes 16% and the remaining 3% comes from new renewable. Solar energy is the energy that comes from the sun in the solar radiation form which is used in heating or generation of electricity. To generate electricity using solar powered electricity generation system, one requires using photovoltaic or heat engines known as concentrated solar power. Some of the most common solar applications include solar cooling using solar architecture, lighting, heating of the space, solar cooking, high…
10 pages (2510 words)
Making Solar Energy Economical
The demand for energy is dependent on properties of conversion means, technologies, and costs. Human energy makes use of resources that can be depleted in particular fossil fuels derived from the preferences. Market forces and cartels may guide a transition back to sources that are renewable. Energy as such has its effects and they come in terms of very heavy environmental costs. At the end of it they are incorporated into the energy cost and prices leading to overuse of energy and motivate policy inventions. Focusing on human utilization of the energy commodities and energy resources and the…
Maximizing Solar Power: Solar Thermal Energy for Domestic Use in New Zealand
According to the resources found for this study, energy efficiency of solar thermal power parallels that of the energy efficiency of fossil fuels, hence it is a viable alternative for electricity generation. Moreover, since the solar power is natural, it has no hazardous by-product and it is a renewable resource so it can be used indefinitely. This research has discovered that one reason for the low uptake for solar technology is the high cost and the lack of awareness among building and construction professionals. Solar Thermal Energy for Domestic Use in New Zealand Introduction In a country…
7 pages (1757 words)
Advantages of using solar cells
The environment has become a big issue around the whole world. During the last decade, it started to change quickly. The earth is becoming warmer and because of that, there are a lot of natural problems and disasters around the world.This is called global warming. People on earth caused this change in temperature. Further, people need energy in their daily lives. They need electricity, fire, hot water, heating and cooling. To produce energy that is enough for all of these activities, we need fossil fuels and coal. All the countries around the world use these two fuels to make electricity and…
9 pages (2259 words)
Solar Powered Fridge Technical Report
However majority of the mankind which lives in the developing or third world countries has just recently woken up to the benefits of refrigeration. As these countries continue to grow rapidly, their people will require refrigeration in some form or other. Refrigeration is required not only for keeping food fresh but is also needed for transportation of perishable products like meat, milk etc (, 2013). Although the need for refrigeration is huge, third world countries are suffering from immense energy crisis. Most of these countries do not have the resources to provide electricity to…
6 pages (1506 words)
Making Solar Energy Economical
This essay outlines the growing importance of the solar energy among other sources and determines the factors, that will ensure larger electrical generation based on solar energy conversion. …
3 pages (753 words)