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Most reliable solar modules are designed to last 25-30 years. Under normal use environment and conditions, after such a long period of time, the power degradation of the module can still be controlled within a certain range, and the power output is generally guaranteed to be no less than 80% of the initial power after 25 years. Its service life is affected by a number of factors, including the quality of the module's encapsulation materials, the stability of the cells, routine maintenance, and the climatic environment in which it is located.
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The efficiency of solar PV modules depends on the materials used, the technology and the light conditions, etc. There are several types of solar photovoltaic modules: Mono, PERC, TOPCon, HJT, BC, etc. Their maximum efficiency in mass production is 18.75% for Mono, 23.2% for PERC, 24.5% for TOPCon, 25.4% for HJT and 26.6% for BC.
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Yes. Low-light performance refers to the ability of solar cells to generate electricity under low-light conditions and is an important indicator of solar cells. The core component of solar panels for power generation is the PN junction, which is a combination of two types of semiconductor materials, p-type and n-type, in a single crystal. The two semiconductor materials have different conductive properties, forming a potential difference in the solar panel. When sunlight shines on the solar cell, this potential difference can drive electrons and holes to diffuse and move in the PN junction to form an electric current. Under the same lighting conditions, the smaller the potential difference that can generate current, the better the low-light performance of the solar panel.
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Firstly, we need information about your average daily electricity consumption, peak usage time and the lighting conditions in your area.
If you are a residential, we will estimate your daily electricity consumption based on the power and usage time of your appliances, and then select modules with appropriate power based on the local average annual sunshine hours.
For commercial or utility users, whose electricity consumption is heavy, and the patterns are complex, we will arrange professional technicians to conduct a detailed analysis of the electricity load and customize a suitable module configuration plan for you to ensure that the electricity generated by the module can not only satisfy your daily use, but also maximize the return on your investment.
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No. Take a 600W solar panel as an example. Under normal working conditions, it will generate a voltage of 40.75V and a current of 14.73A. This electricity is direct current, while the existing power system uses alternating current, so it cannot be directly connected to the grid, and it needs to use an inverter to convert DC to AC before it can be connected to the existing power system. Taking a 3kW inverter as an example, the input voltage of this inverter is 240V, so it needs to be connected in series with 5 pieces of 600W solar modules to convert the DC power to AC power, then it can be integrated into the existing power system.
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The installation is not difficult, but the beat way is to choose a certified and professional electrician to install them. Choosing an installer who is licensed and qualified to install solar can let you connect your system to the grid. Without a certified electrician’s sign-off, the utility won’t let you connect your system to the grid, so you won't be able to generate a profit. DIY installation may be illegal where you live according to local laws.
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Once the solar modules are installed, they require almost no maintenance. You only need to clean them when the surface is dirty or blocked to keep them running continuously and stably. This is one of the benefits of using solar panels. The expense of operation and maintenance occupies extremely little proportion during power generation, which won’t change significantly with the increase in power generation. In addition, the extra generated energy has little impact on the costs, as well. What’s more, while the PV asset has passed the depreciation period, the marginal cost tends to be even lower so that this marginal cost can be regarded as approaching 0.
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After the solar panels are installed, you need to do the following inspections.
Firstly, you need to conduct an electrical safety inspection, including checking whether the electrical connection between the components and the inverter, distribution box and other equipment is correct and firm, whether the insulation performance is good, and whether the grounding system is reliable to prevent leakage accidents.
Secondly, check the installation structure of the modules to ensure that the modules are firmly fixed on the bracket, and the connection between the bracket and the foundation is stable and reliable, and can withstand the impact of natural disasters such as wind, snow, and earthquakes, to avoid personal injury and property loss caused by the components falling due to losing installation.
In addition, it is also necessary to check whether there are flammable and explosive items or other safety hazards around the modules. If there are any, they should be cleaned up in time to ensure the safety of the environment.
Finally, check the lighting protection measures of the solar system to prevent modules and other equipment from being damaged by lighting.
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Taking Mexico as an example, the cost of installing a 1MW solar system is 6 million Pesos. The average annual sunshine duration in Mexico is 2,250 hours, so the annual power generation of 1MW is 1MW*2,250h=2.25 million kWh. In Mexico, the selling price of 1kWh is 3 pesos, so the annual electricity revenue of 2.25 million kWh is 225*3=6.75 million pesos. So, in Mexico, the investment payback period of the solar system is 1 year.
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To ensure the quality of solar panels, we have established a complete quality management system. When purchasing raw materials, each batch of silicon wafers, glass, frames, EVA films and other raw materials are strictly inspected upon entry to ensure that they meet high industry standards. During the production process, each process is subject to strict quality control. For example, the welding quality of the battery cells and the lamination process parameters are monitored and recorded in real time. Finished modules must undergo comprehensive quality inspections, including appearance inspection (no defects such as scratches, cracks, bubbles, etc.), electrical performance testing (power, open circuit voltage, short circuit current, fill factor and other indicators meet the nominal values), insulation testing (to ensure the electrical safety of components in various environments) and weather resistance testing (to simulate the performance stability of components in harsh environments such as high temperature, high humidity, and ultraviolet rays). Our testing standards follow the standards set by authoritative organizations such as the International Electrotechnical Commission (IEC), ensuring that every module shipped has excellent quality and reliability, providing you with long-term and stable power output protection.
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Impact of high temperatures on solar panels: High temperatures can cause the temperature of solar panels to rise, thus affecting the conversion efficiency and service life of the panels. High temperatures can also cause the "hot spot effect" of solar panels.
Impact of high humidity on solar panels: The moisture will permeate into the solar cells though the seams, edges and back of the panels, which may accelerate the corrosion process, and lead to damage the electrical connections, thereby reducing the panels' power generation capacity.
Impact of Salt spray on solar panels: Salt spray contains a large amount of sodium ions and chloride ions. When these ions are deposited on the glass on the surface of the module, they will form a conductive channel and reduce the anti-PID performance of the module.
To cope with these challenges, solar panel manufacturers have developed special materials and technologies that are resistant to high temperatures, corrosion and salt spray to ensure product quality during the production process of solar modules. In addition, the modules will undergo strict product certification to simulate real-world environments, such as high temperature, high humidity, and high salt spray, to verify their reliability and durability in harsh environments. This ensures that solar modules can operate stably and reliably for at least 20 years in various complex natural environments, providing users with continuous power output.
