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Main News Why do I need to clean solar panels?

Why do I need to clean solar panels?

29 February 2024

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Cleaning solar panels is an important aspect of the technical maintenance of solar energy systems and performs several key functions:

  1. Increase in productivity: The surface of solar panels can become contaminated with various substances such as dust, dirt, bird droppings, lichens, and other atmospheric pollutants. These pollutants can reduce the transmittance of sunlight through the panel surface, leading to a decrease in system performance. Cleaning panels from contaminants allows for maximum utilization of solar energy and increased system output power.
  2. Prevention of heat accumulation: Contaminants on the surface of panels can cause heat accumulation around the solar cells. Increased temperature can reduce the efficiency of converting solar radiation into electricity and lead to overheating, which can negatively impact the durability of system components.
  3. Reducing the risk of damage: Ignored contaminants over time can lead to deformation or damage to the surface of solar panels. This can worsen performance and shorten the service life of solar cells. Regular cleaning helps prevent such damage and maintain system integrity.
  4. Improving aesthetics: The visual impression of a solar energy system is also important, especially if it is installed on commercial or public buildings. Clean solar panels look neater and more professional, contributing to a positive perception of the system among users and customers.
  5. Preservation of warranty: Some solar panel manufacturers provide a warranty for their products, which may be voided in case of non-compliance with operating conditions, including maintenance rules. Regular panel cleaning may be one of the requirements to maintain warranty rights.

Although many modern solar panels have some degree of self-cleaning from rainwater and snow, regular cleaning is still recommended, especially if the system is installed in areas with low rainfall or heavy environmental pollution. Cleaning solar panels should be carried out according to the manufacturer’s recommendations, and it is advisable to entrust this task to qualified specialists to avoid damage or improper handling of equipment.


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