How to Clean the Solar panel in the Home Photovoltaic Power Station

How to Clean the Solar panel in the Home Photovoltaic Power Station

After installing a photovoltaic power station, it is inevitable to encounter such a situation: dust, fallen leaves, bird droppings, etc. accumulate on the surface of the modules, which greatly affects the power generation of the photovoltaic power station, so it is necessary to clean the solar panels of the photovoltaic power station regularly. According to industry statistics, frequent cleaning of photovoltaic solar panels can effectively increase the power generation by about 8% every year.


So, how to clean photovoltaic solar panels? How often is it appropriate to clean? What tool is best for cleaning photovoltaic panels?

From the current point of view, the solar panel owners of the home photovoltaic power station can clean it by themselves. If there are no special circumstances, there is no need to spend money to find a professional operation and maintenance team.

The cleaning tools for solar panels are also relatively common, commonly used are high-pressure water guns, soft brushes, cotton mops, etc. These tools are very low in cost and easy to use.

When cleaning, if there is only a small amount of dust on the surface of the solar panel, simply rinse with a high-pressure water gun.

If there are granular pollutants such as sand and mud on the surface, you can first wash it with a high-pressure water gun to wash away the particles, and then use a soft brush to scrub to prevent the particles from sticking to the electric board.

If there are viscous pollutants such as bird droppings and oily pollutants on the surface, wipe them off with a clean rag, clean them with glass water, and finally rinse them with a water gun.

It should be noted that in the process of using the high-pressure water gun, pay attention to the pressure of the high-pressure water gun. Excessive water pressure may cause damage to the solar panel.

What should be paid attention to when cleaning solar panels?

(1) It is best to choose the cleaning time in the early morning, evening or night, and avoid cleaning during high temperature periods such as noon to avoid damage to the solar panels.

(2) When cleaning, pay attention to avoid using hard objects and sharp objects to directly contact the solar panel.

(3) Do not step on solar panels, brackets and other components, which may easily damage the power station and affect the service life.


According to the current industry operation and maintenance experience, in winter and other seasons with a lot of rain and snow, it is generally sufficient to clean it once a month (if there is snow accumulation, it should be cleaned in time), and it is sufficient to clean it twice a month in other months. For windy and dusty areas such as the Northwest, it needs to be determined according to the specific situation.

It should be noted that when cleaning the modules, try not to use soapy water. Usually, when we wash our hands with soap, a thin film will be left on our hands. For the same reason, after cleaning the modules with soap, there will be a film on the surface of the photovoltaic modules. A layer of film or residue will promote faster adhesion and accumulation of dust, etc., affecting the power generation of the power station. In addition, other corrosive cleaning agents should not be used.

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