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Egypt’s Self-Cleaning Solar Panels Keep Dust Away — Pyramids visible over buildings and street traffic

Egypt’s Self-Cleaning Solar Panels Keep Dust AwayCEFR A2

21 Oct 2025

Adapted from Hazem Badr, SciDev CC BY 2.0

Photo by kai muro, Unsplash

AI-assisted adaptation of the original article, simplified for language learners.

Egyptian scientists developed a self-cleaning system for solar panels. This system is based on how tree leaves shed dust. When dust covers solar panels, it blocks sunlight and lowers energy production.

The new panels use vibrations to clean themselves. They shake off dust twice a day. This design can save money on cleaning solar panels every month. The cleaning cost is lower because panels need cleaning less often.

Difficult words

  • developto create or improve something.
    developed
  • systema group of parts working together.
  • solarrelated to the sun or sunlight.
    solar panels
  • panela flat piece used for something like solar energy.
    panels
  • cleanto remove dirt or dust.
    cleaning
  • dustsmall, dry particles that settle on surfaces.
  • moneycurrency used for buying things.
  • vibrationa rapid back-and-forth movement.
    vibrations

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • Why is it important to keep solar panels clean?
  • How do you think this technology will affect energy costs?
  • What other inventions could benefit from a self-cleaning system?

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