Solar Panel Cleaning — Is It Worth It?
Published 2026-02-20 · Updated 2026-07-07 · MySunROI Research Team
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Rain cleans most panels adequately. Cleaning ($150–$300/visit) helps in dusty deserts or pollen-heavy areas — expect 2–5% production gain when dirty.
When to clean
- Visible dirt, bird droppings, heavy pollen
- Desert / agricultural dust
- Flat roofs with pooling debris
DIY vs professional
Soft brush + water — never abrasive. Shut down system if manufacturer recommends.
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Frequently Asked Questions
How often?
1–2× per year max in most climates; often unnecessary.