Photovoltaic Energy as an Alternative Energy Source - By: Allan Michael Taylor

Ever since the negative impacts of heightened energy consumption has been discovered, research and the scientific community have started to clamor with finding ways how to address the increasing demand in energy consumption as well as curb the levels of negative impacts energy consumption brings to the environment. As we all know today, there sources such as water, wind and light developed and being developed further for sufficient energy supply to world's energy needs. Nowadays, the use of sunlight as potential energy source is becoming popular. The technology is called photovoltaic technology.

The term photovoltaic is coined using the Greek word "phos", which means light and the word "voltage" referring to electricity. The technology is very simple. The photovoltaic cells consisting the sheet or module are capable of converting sunshine into electricity. This electricity can be directly and immediately used to power electronic materials in home. However, the photovoltaic energy is capable of proving both grid and off-grid energy production. With the off-grid production, the use of equipment capable of converting AC to DC is needed before the electrical energy can be used.

The photovoltaic process involves exciting the electrons into a higher state. When this occurs, the cells create an electric field where electricity is produced. The process happens once the cells come in contact with sunlight. As the energy produced is greater when there is more sunlight made available, solar panels or modules are much more commonly positioned or mounted on house roofs or building roofs. The roof is an open space directly where the sunlight hits as well as provides enough protection to the photovoltaic equipment from damages probably resulting from other human activities.

The first photovoltaic cells were utilized to power space satellites. Off-grid production also allows it to power solar cars, boats, remote sensing, road emergency telephones, and many others. Nowadays, people can use the technology in their own homes through solar panels which are designed and appropriated for home use. These solar panels are manufactured by different companies, as well as vary in size, colors, and shapes. Usually, they are rectangular in shape and use silicon. Nowadays, the crystalline cells are categorized into three including mono-crystalline, polycrystalline and amorphous.

Today the price for energy production using photovoltaic technology is still relatively higher than the traditional grid energy production. Compared with the price of the first solar cells, however, today's prices are significantly lower. The reduction in price is made possible by the increase in technological sophistication of production as well as government incentives as aw ay to promote the use of this alternative energy source. The governments of Japan, Germany and France, for instance, give financial incentives such as feed-in tariffs to support the industry.

Companies that offer photovoltaic modules offer up to twenty five years in warranty. These manufacturers also give guarantees related to the minimum level of power that a module can produce given a certain number of years. The performance of photovoltaic material depends on the technology and rated peak power. The rated peak power is usually at 80% of the given or manufacturer-set power.

About the Author

Jim Carpenter is an expert if you want more information on photovoltaics. To learn anything and everything regarding solar pv, pay a visit to the website located at - http://www.thegreenelectrician.co.uk

Article Directory Source: http://www.articlerich.com/profile/Allan-Michael-Taylor/45501

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