Cleaning solar panels: Pollution reduces yield, keep them clean!

Solar panels are an investment in a sustainable future. They not only help to reduce energy costs, but also reduce your ecological footprint. What many people do not know is that dirty solar panels generate less energy. Dirt, dust and bird droppings can accumulate and reduce the yield. Regular cleaning is therefore essential for optimal efficiency. We explain why and how you can best clean your solar panels.

Why do solar panels need to be cleaned?

Solar panels work best when they are completely clean and can absorb as much sunlight as possible. However, various forms of contamination can hinder this process:

• Dust and sand: Especially in dry, windy environments, dust can build up, reducing light penetration.
• Bird droppings: Stubborn contamination that is difficult to remove and can cause damage.
• Leaves and branches: In wooded areas, these materials can block light and hinder operation.
• Rain and Mud: While rain sometimes helps with cleaning, it can also cause mud formation, which reduces yields.

This pollution means that solar panels can generate less energy, which leads to lower savings on your energy bill.

How often should you clean solar panels?

How often your solar panels need to be cleaned depends on factors such as location, weather conditions and the type of pollution. In general, it is recommended to clean solar panels at least once or twice a year. Do you live in an area with a lot of dust, bird droppings or trees? Then cleaning more often is wise.

A good guideline is to clean your solar panels at least twice a year, for example in spring and autumn. Do you notice a lower yield? Check if your panels need extra cleaning.

How do you clean solar panels?

Cleaning solar panels is something you can do yourself, but it is important to use the right techniques and materials to prevent damage. Follow these steps for safe and effective cleaning:

1. Turn off the system – This prevents electric shock and damage to the system.
2. Use a soft brush or sponge – Avoid abrasive materials that may cause scratches.
3. Use clean (rain)water – Avoid lime-rich water, as this can leave a haze that reduces yield.
4. Use a telescopic pole – Handy for hard-to-reach panels, so you don’t have to climb onto the roof.
5. Avoid direct sunlight – Clean on a cloudy day or in the early morning/late afternoon to avoid stains and damage.
6. Rinse thoroughly – Ensure that dirt and cleaning agents are completely removed.

Professional cleaning

If you don’t feel comfortable cleaning solar panels, consider hiring a professional. Specialists have the right equipment and techniques for a safe and efficient cleaning, especially for hard-to-reach panels.

Prevention is better than cure

In addition to cleaning, you can take measures to reduce pollution:

• Placement – ​​Make sure your panels are placed in a way that they are less likely to get dirty.
• Bird Control – Install netting or spikes to prevent birds from perching on your panels.
• Avoid Shade – Make sure that trees or buildings do not block the panels, as shade will significantly reduce efficiency.

Conclusion

Solar panels are a great way to save energy and contribute to a more sustainable environment. However, pollution can reduce performance, making regular maintenance a necessity. By properly maintaining your panels, you ensure maximum energy yield and a longer lifespan. Whether you clean them yourself or hire a professional, a little care goes a long way.

Don't let pollution get in the way of your energy savings. Clean your solar panels and get maximum solar energy, all year round!