Development of Flexible Solar PV Panel Cleaning System

Solar energy is a major renewable source of energy and is now contributing to about 60–70% in the power generation sector for countries like India. Mostly, large solar farms are located in defoliated areas. These areas are more prone to dusty environment and bird droppings. This interference of pollutants reduces the power generating capacity of the PV module up to 50% if the modules are not cleaned over a period of month or two. The goal behind the development of flexible solar panel cleaning system is to minimize the adverse impact of pollutants on the panel surface thereby increasing the output of the PV modules. We have designed a mechanical system comprising of fine spray nozzle, helical brush, wiper, and driving mechanism which are actuated by Arduino UNO and motor driver. Solar PV modules are also incorporated on the roof to sustain power generation for the functioning of the system. This system is flexible to do dry and wet cleaning according to the requirement.