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Difference analysis between crystalline silicon battery and thin film battery

Difference analysis between crystalline silicon battery and thin film battery

1. Introduction of crystalline silicon components (polysilicon) Polycrystalline silicon photovoltaic modules are composed of glass, EVA, solar cells, backplanes and solar panels (as shown in Figure 2). Due to the reasonable price and good performance of polysilicon modules, they have a relatively large share in the market. At present, the conversion efficiency of polycrystalline silicon modules is about 15%, which is slightly lower than that of monocrystalline silicon products, but higher than that of amorphous silicon modules. Polycrystalline silicon cells have no photodegradation effect, and slight material quality differences will not cause solar cells to be affected. However, there is a certain difference in the single-chip power of polycrystalline silicon cells, and there is a certain difference in the power of modules with the same area (usually there is a difference of 20Wp-30Wp). Another advantage of polycrystalline silicon cells is that high and stable power generation performance can be obtained per unit area. The current nominal life of polysilicon modules is 25 years.

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Do you know the factors that affect the service life of solar panels?

Do you know the factors that affect the service life of solar panels?

1. Processing quality problems The processing panel is generally professionally processed by the manufacturer. If the wrong processing method or unprofessional processing tool is used in the processing process. It will damage the solar panel, thus reducing the service life of the solar panel. 2. Device fault Before the installation, the construction personnel removed the protective film on the surface of the lighting board in advance, causing things to scratch the surface of the lighting board during the construction process. Or the installation method is wrong. For example, when using screw installation on the board, do not drill holes on the board in advance. Drilling directly on the board will cause the board to crack, which will also affect the service life. 3. Storage fault After purchasing solar panels, many customers stack them at will, regardless of the storage environment. If the solar panel is placed in a humid and corrosive place, it is easy to damage the life of the solar panel.

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What to do if the glass of the solar panel is broken

What to do if the glass of the solar panel is broken

1. The impact of glass breakage of solar panels The broken glass of the solar panel will have a certain impact on the use. The key is to see if the battery below is broken. If the battery is also cracked, it needs to be replaced. Tempered glass has a maintenance effect on the battery below. If it is broken, it will lead to a decrease in light transmittance and a lack of output power. After a long time, the battery will be oxidized, and the subsequent efficiency drop will fluctuate greatly. Second, the replacement of solar panel glass The glass on the solar panel is a low-iron tempered glass, also known as white glass, with a common thickness of about 3.2 mm, and a light transmittance of more than 90% in the wavelength range (320-1100NM) of the solar cell spectral response. 1200NM infrared light has higher reflectivity. The solar panel glass has the advantages of being resistant to ultraviolet radiation and ensuring that the light transmittance does not decrease.

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Congratulations to Wuxi Jingri Optoelectronics Technology Co., Ltd. successfully launched!

Congratulations to Wuxi Jingri Optoelectronics Technology Co., Ltd. successfully launched!

Congratulations to Wuxi Jingri Optoelectronics Technology Co., Ltd. successfully launched!

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How long do solar panels last?

How long do solar panels last?

1. Service life of solar panels The service life of solar panels mainly depends on the material of the sealing layer. There are mainly three types of sealing layers: tempered glass lamination, PET lamination sealing, and glue drop packaging. More than 95% of solar panels on the market are tempered glass lamination packaging. solar panel. The lifespan of tempered glass laminated encapsulated solar panels is 25 years, that of PET laminated encapsulated solar panels is 5 to 8 years, and that of glued encapsulated solar panels is 2 to 3 years. The service life of solar panels is also determined by the materials of cells, tempered glass, EVA, TPT, etc. With the influence of the environment, the materials of solar panels will age with time. Under normal circumstances, the power will be attenuated by 30% after 20 years of use, and by 70% after 25 years of use. Daily maintenance measures for photovoltaic power generation systems are essential. Generally, the service life of solar panels made by manufacturers who use better materials can reach 25 years.

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The working principle and basic functions of solar power lighting system

The working principle and basic functions of solar power lighting system

Working principle of solar power lighting system The working principle of the centralized controllable solar power generation lighting system: under the irradiation of sunlight, the electric energy generated by the solar photovoltaic cell components is charged to the battery pack through the system controller and the battery overcharge prevention control port. Inverter, mains grid-connected switch, mains grid and mains switch are the connection parts of the system and the mains grid. In the special case of insufficient sunlight or insufficient battery power supply, the city grid directly charges the battery. At the same time, the battery has surplus power, and the design can also supply power to the city grid. This power supply method has not yet been implemented. The light group connection control port adopts the common single-chip microcomputer or uses other devices with arithmetic control function. The power of the output port of the battery group is connected to the energy-saving light source through the anti-over-discharge, overload, short-circuit controller port, through the system controller lamp group connection control port and the constant voltage and constant current light source control port, and the energy-saving light source can be changed according to actual needs. Brightness and color.

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