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efficiency
WHY CLEAN?
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Dirt and debris reduce the amount of sunlight that is able to penetrate solar cells.
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Bird droppings, pollen, and other organic matter can create hotspots.
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Crud can cause permanent damage to the solar panel.
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Heavy pollution or frequent rain.
Lifespan Dependency
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Environmental conditions
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Quality of the panels
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Manufacturer
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Maintenance
DATA
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On average, most solar panels experience a decrease in efficiency of around 0.5 - 1% per year.
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This means that after 25 years, a solar panel that started with an efficiency rating of 20% would have an efficiency rating of around 7.5% lower, or approximately 12.5%.
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