Reasons to use solar panel system
The growth of industrial societies and the increasing need for energy on the one hand and the limitation and uneven distribution of fossil energy sources (oil, gas, coal) in the world on the other hand, along with the environmental concerns caused by excessive consumption of fossil energies such as Greenhouse gases resulting from fuel combustion have caused mankind to think about alternative energies, the most important feature of which is purity, availability, and renewable energy.

Solar energy is one of the most important sources of renewable energy. The amount of solar energy radiation varies in different parts of the world and is the highest in the solar belt of the earth. Iran is also located in its launch areas and studies show that the use of solar equipment in Iran is appropriate and can provide part of the country's energy needs.

Iran is a country that, according to experts in this field, has been introduced as one of the countries with high potential in the field of solar energy, despite having 300 sunny days in more than two-thirds of it and an average radiation of 5.5-4.5 kilowatt hours per square meter per day. . Some solar energy experts have gone a step further and claim in an idealistic state that if Iran equips its desert area with radiant energy receiving systems, it will be able to provide the energy needed by large parts of the region and become active in the field of electricity export.

With studies conducted by DLR Germany, it is possible to install more than 60,000 MW of solar thermal power plants in an area of more than 2,000 square kilometers.

If we allocate an area equal to 100 x 100 square kilometers of land for the construction of a photovoltaic solar power plant, the electricity produced by it will be equivalent to the total electricity production of the country in 2009.

Considering the negative and irreversible side effects of fossil energy production, it is necessary to pay attention to the promotion and development of renewable energy in the future. The technology of producing such energies is far higher than the cost of producing conventional energies, side effects such as environmental and social effects cover such costs. It should also be noted that economies of scale can play a key role in reducing the cost of producing each unit of energy.

During the last two decades, with the economic feasibility of researchers in various domestic, commercial and industrial sectors, industrialized countries including Japan and Germany are looking for alternative sources of energy such as solar energy for electricity generation, which turn to this type of energy because of its availability. It is a source of natural energy. In the early 1990s, Japan started using photovoltaic energy to generate electricity, followed by Germany. Recently, China is also looking to expand the capacity of solar energy and then reduce the cost of electricity production. In addition to the reduction of electricity production costs, the increase and improvement of productivity are also important aspects of this discussion. One of the types of solar energy is photovoltaic energy. Photovoltaics or solar panel system are electronic devices that convert sunlight directly into electricity. The photovoltaic effect exists when two different semiconductor materials (silicon and germanium) are in close proximity to each other and produce an electric current when exposed to sunlight. Today, PV is one of the fastest growing renewable energy technologies and is expected to play a major role in the future of electricity generation (multiple sources) in the world. Solar panel systems are one of the best renewable energy technologies; So that the sizes of their units are such that they have a special attraction for small businesses and those who want to achieve self-production and stability in electricity prices.
Unlike conventional coal, oil, gas and nuclear power plants, solar panel system has no fuel costs and relatively low operating and maintenance costs. Therefore, PV can prevent the increase in the price of fossil fuels.
Although PV electricity is variable, it has a good match with the peak demand for electricity in the summer season when the cooling systems work, and in hot countries, this match exists for the whole year.
Solar panel system now has a complete and proven technology and is rapidly developing and reaching global markets. With the continuous reduction of costs, the number of these markets will increase and the costs will also decrease. Solar panel system is a renewable energy source with high security capability and also does not face fuel price fluctuations.
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