Engineering notes

How to Maintain Solar Panels?

Published · 6 May 2025

Dust and bird droppings adhering to the surfaces of solar panels in the outdoor environment for a long time reduce the efficiency of the solar panel.

We should perform periodic maintenance on solar panels so that our energy production efficiency does not decrease.

Blue squeegee cleaning the surface of a solar panel
  • We should choose the time for maintenance well. Generally, low light or cloudy days should be preferred to avoid losses in energy production.
  • To avoid accidents such as electric shock, we must check the panel for any damage by looking at the connecting wires and related components.
  • When wiping the solar panel; hard, sharp, corrosive solvents and alkaline organic solvents should not be used. Soft tools such as sponges and cotton towels should be preferred to prevent scratches and corrosion of the solar panel.
  • To avoid load resistance due to localized shadowing, attention should be paid to the cleanliness of edges and corners that affect power generation efficiency.
  • Due to prolonged exposure to factors such as wind, sun or rain, it is important to regularly check screws for corrosion and rust.

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