There are debris in the photovoltaic energy storage cabinet

At present, though many researchers have studied dust deposition on photovoltaic modules, there is still a lack of theoretical support and experimental verification in some aspects. The following ideas can be studied in future research.

Indoor and outdoor dust deposition experiments. The dust density of indoor dust deposition is 7.155 g/m2, and the output power is reduced by 45–55%; the indoor dust deposition density is 1.4 g/m2, and the power loss is 4–5%. Effect of 145-day summer dry dust deposition. photovoltaic efficiency reduced from 15% to 13.9%.

Large-scale photovoltaic power plants are often built in arid and sandy areas, which carry a large number of dust particles in the air. Dust deposition on photovoltaic modules has a significant impact on the transmittance, temperature, and roughness of photovoltaic modules, reducing their power generation efficiency and service life.

The dust density of indoor dust deposition is 7.155 g/m2, and the output power is reduced by 45–55%; the indoor dust deposition density is 1.4 g/m2, and the power loss is 4–5%. Effect of 145-day summer dry dust deposition. photovoltaic efficiency reduced from 15% to 13.9%. A 2-month polluted dust deposition experiment.

As shown in Fig. 4, under the combined action of turbulent diffusion, Brownian diffusion, gravity deposition, turbulent swimming effect and thermophoresis effect, dust particles adhere, rebound, accumulate and resuspend on photovoltaic modules. Dust accumulates dynamically and repeatedly and forms a dust layer.

The deposition of particles on photovoltaic modules is influenced by gravity and several types of force: van der Waals, liquid and electric field. Dust particles leave the panel under strong separation force which includes contact and resistance.