Renewable energy will be the main source of energy in the future. Photovoltaic modules (PV) are the key to PV systems. In this article, we will examine the effect of the tilt angle, light, temperature and shading on the output power of photovoltaic modules.
Solar energy is one of the main forms of green energy available today. The land receives approximately 1366 kW of solar energy per day and we can only use a small part of it.
Types of Prings Photovoltaïques
Panels Solaires Monocristallins
THE monocrystalline photovoltaic panels are made from pure silicon and are dark black in color. They are made of a single pure silicon crystal cut into several slices.
Panels Solaires Polycristallins
Polycrystalline solar panels are made from a variety of silicon crystals. They are made by melting silicon crystals and pouring them into a mold.
The purity of silicon in polycrystalline silicon solar panels is lower than that of monocrystalline silicon, which results in lower conversion efficiency than monocrystalline silicon solar panels.
However, polycrystalline silicon is easy to manufacture industrially and its price is lower.
Panels Solar to Cmouth Mince
Thin film solar panels are different from monocrystalline and polycrystalline solar panels. The main materials used for their manufacture are CdTe, a-Si and CIGS.
Thin-film solar panels are less efficient, but can work in high temperature environments.
Cables Photovoltaïques
Photovoltaic cables are used for transmission of electrical energy in photovoltaic systems. Once the solar panels have converted solar energy into electrical energy, electricity is transmitted to the battery or the grid via photovoltaic cables.
Factors Aaffecting the Ssystems Photovoltaïques
The light
Photovoltaic panels work by converting solar radiation into electrical energy.
This is why light has a significant impact on the power output of a photovoltaic system.. This is why photovoltaic power plants are generally built in desert or tropical areas..
The light intensity is very strong and the photovoltaic system can obtain more solar energy resources, which increases the efficiency of electricity production and reduces energy costs. These regions are very conducive to the development of the photovoltaic industry.
The Température
We all know that high temperatures have an effect on the transmission of electricity through cables, and the same goes for photovoltaic modules.
The efficiency of photovoltaic panels is linked to temperature. Excessive temperatures affect heat dissipation and require appropriate heat sinks during installation.
According to the article “The Effect of Temperature on the Efficiency of Photovoltaic Cells“, an increase in operating temperature reduces the power output of photovoltaic panels.
The output power reaches 53,8 W to 10 ℃. HAS 25 ℃, the output power reaches 50,2 W. HAS 55 ℃, the output power reaches 42,9 W.
Masking
Shading is a key factor in PV systems, which directly affects the absorption of solar radiation by solar panels.
In cloudy or stormy weather, shading weakens the solar panel's ability to absorb solar energy, which reduces the output power to the lowest level.
Besides weather factors, Dust or other debris on the surface of solar panels can also negatively affect the performance of a photovoltaic system. This debris prevents the surface of the solar panel from coming into direct contact with sunlight, which reduces the light transmission rate and therefore the absorption efficiency of the solar panel.
Angle you PPV ring
Sun angle varies from region to region and from time to time, which also directly affects the electricity production efficiency of the photovoltaic system.
Generally speaking, an angle of inclination between 15 et 35 degrees is considered ideal. A tilt angle within this range allows photovoltaic panels to fully receive sunlight and maximize energy conversion efficiency.
Parallel, intelligent development. Nowadays, photovoltaic systems intelligently regulate the direction and tilt angle depending on the intensity of the light. Maximum efficiency of solar energy reception is thus maintained at all times..
Aging of Composants
Any installation faces the problem of aging after a long period of use. This can lead to a reduction in the power of photovoltaic modules. The average loss rate should be 1 % on 20 ans.
If module aging is inevitable, their timely replacement makes it possible to effectively maintain the output power of a photovoltaic system, thus extending the life of the entire system.
Regular inspection and replacement of aging modules ensures that the photovoltaic system continues to provide efficient energy conversion and production, while reducing system maintenance and operating costs.
Comment Nclean them Prings Photovoltaïques ?
In most cases, photovoltaic panels are self-cleaning and are able to get rid of surface dust and dirt. However, if the situation requires the panels to be cleaned, you must call a professional cleaner to carry out the operation.
To maximize the safety and efficiency of PV panels, it is recommended to turn off the solar panels during the cleaning process and carry out the work early in the morning, which helps avoid the potential impact that cleaning during high temperature hours can have on PV panels.
Cleaning should be carried out in several stages. First of all, use a soft bristle brush to gently clean the surface of dust and debris so as not to damage the surface of the photovoltaic panels. Ensuite, use the appropriate amount of water for deep cleaning to ensure that the surface of the photovoltaic panels is clean and free of pollution.
At the same time, cleaners must pay attention to safety measures to ensure that the work process will not have any adverse effects on themselves or the environment.
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