In most people's cognition, photovoltaic power system needs sunlight to generate electricity. Especially recently, it has been rainy everywhere. Many friends who have installed photovoltaics or want to install photovoltaics can't help but worry about whether the rainy weather will affect the impact. Photovoltaic power system? Can it generate electricity if it snows in winter?
It is understood that while photovoltaic power system obtains energy, it is indeed related to the four seasons, day and night, cloudy and sunny and other meteorological conditions. However, in rainy and snowy weather, although there is no direct sunlight, the power generation of photovoltaic power plants will be relatively low, but it is not that there is no power generation. Photovoltaic modules can also achieve a certain degree of power generation under low light conditions. The data in the above video shows that a 20-kilowatt photovoltaic power system generates 20 kWh of electricity on rainy days.
Although weather factors are beyond our control, we can do a good job in maintaining photovoltaic modules in our daily life. After the module is installed and starts to generate electricity, regular inspection and cleaning are very important. Regular inspection can keep abreast of the operating status of the power station. Regular cleaning can remove dust and other dirt on the surface of the module and improve the power system efficiency of the module.
Cleaning steps for solar panels in rooftop power system
Check the contamination level of the panels to be cleaned before cleaning.
In the case of light contamination - no particulate matter, just dust, we recommend only rinsing or brushing alone.
When deep cleaning is required, if you find that there are particles on the surface or you are not sure whether it is not, then it is best to rinse it first, and then brush after the particles are rinsed away. Finally, it is best to rinse it again with clean water.
Use a small dry broom or rag to sweep off the attachments on the surface of the module, such as dry floating ash, leaves, etc. For hard foreign objects such as soil, bird droppings, and sticky objects attached to the glass, a slightly harder scraper or gauze can be used for scratching, but it should be noted that hard materials cannot be used to scratch to prevent damage to the glass surface. According to the cleaning effect, it is necessary to rinse and clean.
Rinse and clean. For objects that cannot be cleaned off, such as residues of bird droppings, plant sap, etc., or wet soil, which are closely attached to the glass, they need to be cleaned. The cleaning process generally uses clean water and a flexible brush to remove. If you encounter oily dirt, etc., you can use detergent or soapy water to clean the contaminated area separately.