Maintenance Guides / Solar Panels

Clean solar panels

Difficulty: moderateTime: 30 mins

Why it matters

A thin layer of dust and grime can reduce solar panel output by 10–25%. In dry climates, panels may need cleaning 2–3 times per year. In wetter climates, rain handles much of it.

Stop forgetting to do this.

HomeOS generates a personalized maintenance schedule so you never miss another clean solar panels.

How to do it

  • 1

    On a cool, overcast morning, use a garden hose from the ground to rinse the panels.

  • 2

    For stubborn grime, use a soft brush on an extension pole with mild soap.

  • 3

    Avoid harsh chemicals, abrasives, or high-pressure sprays that can damage the surface.

  • 4

    Never spray cold water on hot panels — thermal shock can crack them.