Improvement of an electrostatic cleaning system for removal of dust from solar panels

Hiroyuki Kawamoto*, Bing Guo

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    82 Citations (Scopus)


    An improved cleaning system has been developed that uses electrostatic forces to remove dust from the surface of solar panels. A two-phase high voltage is applied to the parallel wire electrodes embedded in the glass plate of a solar panel. It was previously demonstrated that the adhering dust can be repelled from the surface of a slightly inclined panel by applying a low-frequency high-voltage. However, the performance is low for extremely small dust particles. The proposed system improves the performance by the application of a high voltage, reduction of adhesion force, utilization of natural wind, and frequent operation before the deposition of dust. In addition to the cleaning performance, the frequency response and actual power consumption of the high voltage source was investigated to provide data for the design and efficiency evaluation of the system. It was demonstrated that the energy consumption is extremely small with a simple and potentially low-cost high voltage source. This technology is expected to increase the efficiency of the mega solar power plants constructed in deserts at low latitudes.

    Original languageEnglish
    Pages (from-to)28-33
    Number of pages6
    JournalJournal of Electrostatics
    Publication statusPublished - 2018 Feb 1


    • Cleaner
    • Electrostatic force
    • Mega solar
    • Sand
    • Solar panel

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Biotechnology
    • Condensed Matter Physics
    • Surfaces, Coatings and Films
    • Electrical and Electronic Engineering


    Dive into the research topics of 'Improvement of an electrostatic cleaning system for removal of dust from solar panels'. Together they form a unique fingerprint.

    Cite this