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One of the biggest challenges for rooftop solar systems in India is dust and pollution settling on solar panels. When dirt builds up over time, it blocks sunlight from reaching the solar cells and directly affects the amount of electricity your solar system can generate.
Regular cleaning keeps the system healthy and ensures you get maximum output for many years—especially in dusty regions.
India experiences high dust levels throughout the year. Bird droppings, air pollution, and seasonal changes lead to dirt accumulation that gradually reduces efficiency and increases your grid usage.
Clean solar panels perform better and help you maintain maximum potential savings every month.
Solar manufacturers lay down specific cleaning instructions. Using hard water, pressure jets, strong chemicals, or abrasive materials can cause scratches or micro-cracks on the panel glass, and this may impact warranty coverage.
Cleaning correctly ensures your system remains safe, efficient, and warranty compliant.
If you choose to clean your panels yourself, follow these simple recommendations:
Avoid cleaning during peak sunlight, as splashing cool water on hot surfaces can create thermal shock.
These methods can scratch the glass, leave stains, or reduce long-term efficiency.
Cleaning frequency depends mainly on your environment:
Location Type | Recommended Frequency |
|---|---|
| High dust / polluted cities | Every 15–30 days |
| Moderate dust regions | Every 1–2 months |
| Cleaner localities | Every 3 months |
| After dust storms / heavy bird droppings | Clean immediately |
Rain during monsoon helps, but it should not replace manual cleaning.
Dust and pollution block sunlight from reaching the solar cells. This reduces the conversion of sunlight into electricity and increases the dependence on grid power—especially during high-load months.
Keeping your panels clean helps maintain higher energy generation and better savings.
Do not walk on solar panels
Never clean while the system is ON
Avoid bending near open edges
Don’t clean under strong sunlight
Wear proper shoes and safety gear
On-grid systems offer multiple long-term benefits:
Lower electricity bills
Government subsidies available
No batteries required
Simple installation
Long operating life (25+ years)
With increasing electricity costs, rooftop solar continues to be one of the highest ROI household investments today.
The safest way to clean solar panels at home is quite simple:
➡ soft long brush
➡ low-pressure water
➡ mild cleaning liquid
➡ only when the panels are cool
Following these basic tips helps maintain long-term efficiency, keeps your system safe, and protects your investment for years to come.
Copyright © 2025 Ushasri Technologies Private Limited. All rights reserved.
