Self-Powered Autonomous Electrostatic Dust Removal for Solar Panels by an Electret Generator.

ABSTRACT: Solar panels often suffer from dust accumulation, significantly reducing their output, especially in desert regions where many of the world's largest solar plants are located. Here, an autonomous dust removal system for solar panels, powered by a wind-driven rotary electret generator is proposed. The generator applies a high voltage between one solar panel's output electrode and an upper mesh electrode to generate a strong electrostatic field. It is discovered that dust particles on the insulative glass cover of the panel can be charged under the high electrical field, assisted by adsorbed water, even in low-humidity environments. The charged particles are subsequently repelled from the solar panel with the significant Coulomb force. Two panels covered with sand dust are cleaned in only 6.

SUBMITTER: Ding R 

PROVIDER: S-EPMC11234423 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature