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Currently, more than 90% of photovoltaic cells are made of various types of silicon. In 2011, about 95% of the panels sold to run home photovoltaic systems in the United States of America were crystalline silicon. Silicon is used to make solar panels in various ways. The most important difference is the purity of the silicon used. Crystalline silicon is the basis for making monocrystalline and polycrystalline solar cells.1-Monocrystalline solar panelsMonocrystalline solar cells are made from pure crystal. Their integrated color simply distinguishes panels with this technology from other panels. Silicon crystals with rounded coers are used in the construction of these types of panels, which distinguish them from polycrystalline panels in terms of appearance.1-1-Advantages of monocrystalline panelsThe highest yield among panels (around 21%) due to the high manufacturing quality and high purity of siliconMonocrystalline panels are the most efficient in using space and require less space for installation, and as a result, they are the best choice for places where there is a lack of space or the price of land is expensive.They have the longest lifespan among panels, and for this reason, most manufacturers have a warranty of more than 20 years for this type of panel.Compared to polycrystalline panels, they have better performance and efficiency in low light conditions.1-2-Disadvantages of monocrystalline panelsDue to the multi-stage and complex construction, they are the most expensive type of solar panels.If the shadow falls on a part of the panel, or the panel becomes dirty and dusty, or if snow and hail sit on the panel, the entire panel will stop working and will not produce power.Due to the manufacturing method of this type of panel, a lot of waste is created during their manufacture.At high temperatures (usually above 30 degrees Celsius), the efficiency of this type of panel drops.2-Polycrystalline solar panelsThe first solar panels based on polycrystallin, ...ادامه مطلب

In today’s bustling world, due to the increase in population, fossil energy resources are decreasing drastically. Therefore, Applications of solar panels as a way to replace fossil fuels has expanded.With the expansion of science and technology, solar panels entered the arena and were used as a technology in energy production for buildings.Today, we can see the application of solar panels in many buildings.A solar cell is a device for converting solar energy into electrical energy, which is produced from semiconductor sheets.Application of solar panels is one of the latest innovations to optimize energy consumption in green buildings and a suitable method for maintaining and using renewable solar energy.Solar systems are a very rational way to invest and reduce building costs and provide human health and lead to the preservation of natural resources for future generations.What is solar energy and what is its application?Solar energy is one of the free sources of clean energy without any environmental damage. This energy is used today due to the energy crisis and to minimize pollution.Today, due to the lack of use of high-quality materials and proper insulation in building, the amount of energy consumption and its waste in the building is very high.The cost of fossil fuels and other energy is very high and the residents of the building have to pay exorbitant fees to pay the bills. But solar energy is an available and free resource that can be used for various purposes in the building.For example, this type of energy is used to heat the water needed by the heaters to provide heating in the building or to produce electricity.Cooling and heating systems and solar water heaters significantly reduce the amount of energy consumption in the building and play an effective role in the life of the building.Basically, solar systems are also equipped with an auxiliary system so that they can be used when the amount of solar energy is not enough to supply the required energ,solar energy, solar panels, solar panels for buildings ...ادامه مطلب

If you are interested in solar energy professionally; You are probably able to explain how solar photovoltaic systems produce electricity. This process is mysterious and unknown to many, and there are often misconceptions about it among those who are not familiar with solar energy. For this reason, in this article we are going to talk about how solar installations produce electricity and how this process works. First, we will talk about the basics of how to produce solar energy, and then we will discuss the specifications of PV systems or Photovoltaics System.Basics of a Solar Photovoltaic (PV) SystemSolar PV systems are basically a combination of solar panels, the hardware needed to help power flow from the panels, and inverters. Depending on their type, PV systems can use string inverters, micro inverters or power optimizers to convert energy; But the basic structure of most PV systems is the same. How does solar energy work in a photovoltaic (PV) system?Solar panels convert the energy of photons (light particles) into electricity. This process is called the photovoltaic effect. When a photon hits a photovoltaic (PV) device; The photon energy is transferred to the local electrons of the material. Then these excited electrons flow and thus electricity is produced.Solar cells (located inside solar panels) produce direct current (DC), which is usually converted to alteating current (AC) by an inverter. In this way, the electricity produced by these panels can be transferred to the power grid or used to supply energy to electrical appliances (or commercial installations of solar buildings).The process of how solar panels work includes the following three main steps:1-The solar cells inside the solar panels absorb the sunlight and this causes the electric current to start flowing.2-An inverter converts DC power to AC power.3-This electricity is used to supply the energy needed by the customers’ buildings, and the excess electricity over the custome,Solar photovoltaic system, Solar , photovoltaic system, solar panel ...ادامه مطلب