Maintaining optimal performance and increasing the lifespan of solar panels requires routine cleaning. The accumulation of dust, dirt, pollen, bird droppings, and other debris on the surface of solar panels lowers their efficiency in absorbing sunlight. There may be a 20–30% reduction in energy production as a result of this accumulation.
Here’s how keeping solar panels clean increases their lifespan:
1. Increases Productivity
Maximum absorption of sunlight is possible with clean solar panels, which enhances energy conversion rates. Because unclean panels don’t produce as much electricity, the system could have to work harder and eventually wear out sooner.
2. Prevents Incurable Injury
Certain detritus, including bird droppings, might become hard and leave behind long-lasting stains or harm panels’ anti-reflective coating. By keeping corrosive materials off the panel surface for extended periods of time, cleaning helps to avoid long-term damage.
3. Diminishes the Chance of Hot Spots
On the panel, dirt and debris can cause hot spots, which are regions that overheat from unequal solar absorption. The solar cells’ lifespan may be shortened by these hot areas. By guaranteeing uniform distribution of sunlight, cleaning helps prevent this problem.
4. Prevents Abrasive Dirt Scratches
Sand and fine dust are examples of abrasive particles that can cause surface scratches over time, especially if improper cleaning techniques are used. By using the right cleaning techniques, you can lessen the chance of scratches, which can harm the panel’s surface and decrease its effectiveness.
5. Maintains Guarantee
For warranties to remain valid, many manufacturers demand routine cleaning and maintenance. If cleaning is neglected, warranties may be voided, limiting coverage for subsequent repairs or replacements.
6. Keeps Corrosion at Bay
Metal parts of panels are frequently exposed to moisture and dirt, which can cause rust and corrosion. By preventing such exposure, routine cleaning helps to maintain the system’s structural integrity.
Overall, keeping solar panels clean lowers the chance of premature deterioration and the need for expensive repairs or replacements while ensuring they run at maximum efficiency for the 25–30 years that they are supposed to last.