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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 module, 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, regular cleaning of photovoltaic solar panels can effectively increase power generation by about 8% every year.
So, how to clean photovoltaic solar panels? How often is the appropriate cleaning time? What tool is the best to clean photovoltaic panels? Today, we will answer for you one by one.
From the current point of view, the owner of the solar panel of the home photovoltaic power station can clean it by himself. If there is no special situation, 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-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 it with a high-pressure water gun.
If there are granular contaminants such as sand and mud on the surface, you can first use 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 contaminants such as bird droppings and oily contaminants on the surface, wipe it off with a clean rag, clean it with glass water, and finally rinse it 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, avoid cleaning at high temperature periods such as noon, so as to avoid damage to the solar panels.
(2) When cleaning, avoid using hard and sharp objects to directly touch the solar panel.
(3) Solar panels, brackets and other parts cannot be stepped on, which may damage the power station and affect its service life.
According to the current industry operation and maintenance experience, in winter and other rainy and snowy seasons, it is generally sufficient to clean it once a month (if there is snow accumulation, it should be cleaned in time), and it can be cleaned twice a month in the rest of the month. Windy and dusty areas such as the northwest need to be determined according to specific conditions.
It should be noted that: try not to use soapy water when cleaning the components. Usually when we wash our hands with soap, a thin film will be left on the hands. The same reasoning is that after cleaning the components with soap, it will also leave on the surface of the photovoltaic module. A layer of film or residues will encourage dust to adhere and accumulate more quickly, affecting the power generation capacity of the power station. In addition, it is not easy to use other corrosive cleaning agents.