How to properly clean solar panels and what happens if you don't?

The use of solar panels is growing rapidly, especially in the private sector, where they are becoming an integral part of modern homes. Their popularity is explained not only by environmental benefits, but also by minimal maintenance. However, despite their durability, solar panels require periodic cleaning. The accumulation of dust, dirt and precipitation can lead to a decrease in their efficiency. Let's take a closer look at how to properly clean solar panels and what consequences may arise if this is not done.

How to clean solar panels?

Solar panels are installed in a variety of climates and are exposed to a variety of contaminants, from dust and sand in arid regions to leaves, smog, and birds in urban areas. Cleaning your panels is a simple but important process that can be done even with common household products.

For effective cleansing, the following are suitable:

• A soft sponge or brush with a long handle allows you to carefully remove dirt without the risk of damaging the surface.

• A soap solution based on a neutral detergent - perfectly copes with plaque and stubborn stains.

• Running water is the simplest way to remove dust, but it is not enough to combat serious contamination.

• Microfiber cloths – help avoid streaks and restore surface transparency.

It is strictly forbidden to use abrasive sponges, hard brushes, chemically aggressive detergents and steam cleaners, as they can damage the surface of the panels and reduce their effectiveness.

Safety When Cleaning Solar Panels

Since the panels are usually installed on roofs, the cleaning process requires care. Before starting work, you must:

• Use a sturdy ladder and safety harness if necessary.

• Do not step on the panels as this may cause damage.

• If possible, use a mop with an extended handle or a hose with a spray nozzle.

• Clean the panels in the early morning or evening hours to avoid overheating and the appearance of streaks.

If the roof has a complex structure or access to the panels is difficult, it is recommended to contact professionals who will carry out cleaning safely and effectively.

How often should solar panels be cleaned?

It is recommended to clean solar panels at least once or twice a year , especially in spring and autumn. However, the frequency may vary depending on climate conditions:

• In dusty areas (for example, near fields or roads), panels become dirty faster and require frequent cleaning.

• In cities with high levels of smog and precipitation, plaque may form more quickly.

• In regions with frequent rainfall, panels can be cleaned naturally, but monitoring their condition is still necessary.

What happens if you don't clean your solar panels?

Dirt, leaves and other contaminants reduce the amount of sunlight reaching the panels, which reduces their efficiency. On average, uncleaned panels lose 15 to 20% of their efficiency per year. In the long term, this leads to:

• Reduced electricity generation and increased electricity costs.

• Overheating of panels due to uneven distribution of sunlight, which reduces their service life.

• Damage to the surface , as sand and other small particles can leave microscopic scratches.

Thus, regular cleaning not only maintains the panels at maximum efficiency, but also extends their service life.

How much does it cost to recycle solar panels?

The average cost of recycling one solar module is between 10 and 12 euros . However, for private owners, this amount is rarely a problem, as most countries have recycling programs that allow panels to be disposed of at minimal cost. A more serious financial burden is associated with the loss of their efficiency due to improper maintenance. Uncleaned panels wear out faster, which leads to additional costs for their replacement and repair.

Modern technology allows for more stable and durable solar modules, but even they require proper maintenance. Regular cleaning and maintenance help maintain maximum efficiency, reduce energy costs, and extend the life of the system for many years.