ASCCT
Advanced Self-Cleaning Coating System in solar panels refers to a special nanotechnology-based surface treatment applied to the glass surface of solar panels to automatically repel dust, dirt, water, and other contaminants — significantly reducing the need for manual cleaning.
🔍How It Works:
Advanced self-cleaning coatings are usually made from hydrophobic or hydrophilic materials:
Hydrophobic Coatings: Repel water and dirt. Water rolls off easily, carrying away dust and grime.
Hydrophilic Coatings: Spread water into a thin layer that lifts dirt and allows it to run off easily during rain.
Some systems may even be photocatalytic (often titanium dioxide-based), meaning:
UV sunlight activates the surface to break down organic dirt.
Then, rainwater washes the debris away.
✅ Advantages:
1. Reduces Cleaning Frequency: Minimizes dust accumulation, especially important in dusty regions like Rajasthan.
2. Increases Power Output: Clean panels allow more sunlight to pass through, improving efficiency.
3. Lowers O\&M Costs: Saves water and manpower for manual cleaning.
4. Eco-Friendly: No need for harsh chemicals or frequent water usage.
5. Enhances Durability: Protects against corrosion, oxidation, and UV damage.
❌ Disadvantages:
1. Higher Initial Cost: Coated panels are more expensive than standard ones.
2. Effectiveness Varies: Less effective in areas with oily pollutants or bird droppings.
3. Degradation Over Time: Coating can wear off after several years and may need reapplication.
4. Not a Substitute for All Cleaning: In extreme soiling conditions (e.g., mud, heavy pollution), manual cleaning might still be necessary.
🏗️ Where It’s Used:
Ideal for utility-scale solar farms, commercial rooftops, and desert regions.
Popular in Middle East, Africa, and India where dust and water scarcity are major issues.
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