What cleaning method is used to clean photovoltaic panels is the most cost-effective and efficient?

What is used for photovoltaic panel cleaning ? What is the most cost-effective cleaning method for photovoltaic panels ? In the later operation and maintenance of photovoltaic power plants, cleaning issues are a major part of the photovoltaic panels . A suitable photovoltaic panel cleaning method can save costs and achieve a better photovoltaic panel cleaning effect. According to different power stations, there are four main cleaning methods for photovoltaic panels.

1. Manual dry cleaning of photovoltaic panels

The operator uses a long-handled mop with a special detergent for cleaning. The dry cleaning cycle is about 3 days/10MW, and the cost is about 1,2000-13,000 yuan/10MW.

Main principle: Using the principle of electrostatic adsorption, it has the function of adsorbing dust and sand particles, enhancing the dust suction and decontamination ability of the dust pusher, and can effectively avoid flying dust and sand particles during cleaning.

The disadvantages of manual dry-cleaning of photovoltaic panels: different operators have different forces and different pressures on the components, which will cause the components to deform too much and cause the cells to crack. Another shortcoming is that the dry-cleaning of the components is not good, often because the mop is stained. Excessive dust leaves some traces on the surface of the component, causing a large area of ​​shadow to block.

2. Manual washing of photovoltaic panels

The operation method of manual washing is to use a vehicle with water storage function, such as a tractor with a water tank or a city sprinkler, and a pressure nozzle of no more than 0.4MPa to clean the components. The cost of washing is about 0.2 yuan/m2, and the cost of The price of dry cleaning is about the same, but it requires two people to operate at the same time, one to drive, and one to spray water to clean and wash the components.

Disadvantages of manual water washing of photovoltaic panels: When the water pressure exerts too much pressure on the photovoltaic modules, it will cause the cells to crack, and it is impossible to control the change of the water pressure of the operator's nozzle during the process. Another disadvantage is that after washing, the components dry by themselves, and water stains will form on the surface of the components. Compared with the components, it is a miniature shadow occlusion.

3. Cleaning photovoltaic panels for construction vehicles

At present, the cleaning equipment modified with construction vehicles as the carrier has high power and high efficiency. The cleaning work has a good consistency in the pressure of the photovoltaic panel, and will not produce uneven pressure on the photovoltaic panel, causing the photovoltaic panel to crack, and cleaning can be done by cleaning and cleaning. Two modes of water washing.

4. Smart photovoltaic panel cleaning robot

In order to effectively improve the efficiency of cleaning the dust on the surface of the photovoltaic panel, intelligent cleaning robots are used for regular cleaning to thoroughly remove the dust and dirt on the surface of the photovoltaic panel to improve the efficiency of power generation. The method is to install a cleaning robot for each row of photovoltaic panels in the power station, which automatically cleans regularly and is unattended.

Disadvantages of smart photovoltaic panel cleaning robot: sometimes the robot is stuck by the uneven photovoltaic panel frame, the robot cannot return normally, and it is difficult for the operation and maintenance personnel to find the position of the robot on the site.

Compared with traditional photovoltaic panel cleaning methods, the advantages of intelligent cleaning robots are very obvious. Not only does it have its own energy storage, no external power supply is required, it will not cause the photovoltaic panel to crack, and it can save labor costs, save water, and is very environmentally friendly.