How to clean a PV panel?

Consequently, specific cleaning techniques are required to mitigate the accumulated dust and restore the plant's efficiency. The most popular PV panel cleaning techniques include natural, manual, automatic, and electrostatic cleaning. Each cleaning technique is associated with both positive and negative impacts.

What is solar photovoltaic panel cleaning technology?

The Solar Photovoltaic panel cleaning technology can considerably increase the efficiency of electricity generated and also increase the durability of Solar panels.

Why do PV panels need to be cleaned manually?

However, traditional manual cleaning of the panels is an energy and time consuming process. Moreover, manual cleaning can also create cracks on the PV panel surface due to harsh brushing which will further deteriorate PV performance. In addition, very small particles cannot be removed effectively by manual cleaning process.

What is the contribution of cleaning and cooling in solar PV panels?

When the blowing time extended to 15 s and 20 s, the PV power improved to 758.2 W and 772.5 W, and the contribution of the cooling increased to 30.9% and 35.7%. Table 5. Parameters of the compressed air system. Fig. 10. Contribution of cleaning and cooling on performance improvement of a solar PV panel.

How to self-clean PV panel?

Hence, researchers have provided several methods to self-clean the PV panel i.e., mechanical method, electrostatic method and coating method. With these methods, PV panel can be cleaned with low cost and low energy consumption. Different methods of PV glass cleaning are given in Fig. 2as below. Download: Download high-res image (195KB)

How to clean dust from PV panels?

Electrostatic method also needs electrical power to operate and manual cleaning is not technically feasible at all. Nonetheless, hydrophilic and hydrophobic coatings are capable options to clean the dust from PV panels at large scale with reasonable reliability and low cost.