The Hidden Threat to Your Solar Panels: How Shaded Areas Can Lead to Costly Damage
Solar panels work best when they get direct sunlight. But what happens when they don’t? Many commercial solar panel owners think shade only lowers efficiency. However, the problem is much bigger. Areas of a solar array without sunlight often develop algae, moss, and lichen. If ignored, this growth can damage panels, lower energy output, and even harm the entire system.
How Growth Forms on Solar Panels
Solar panels face all kinds of weather. Moisture collects in shaded areas. Dust, pollen, and debris mix in, creating the perfect place for algae and moss to grow. Over time, this build-up blocks sunlight and damages the panel’s protective surface.
This issue is common in places where trees, buildings, or other panels create shade. While modern panels are strong, they are not immune to long-term damage. Because of this, regular cleaning is important.
For more on solar panel efficiency, check out this NREL study on the effects of dirt and shade.
The Risks of Organic Growth
Leaving organic growth unchecked causes several problems:
Lower Energy Production – Even a little algae or moss blocks sunlight, reducing energy output.
Hot Spots & Damage – Shaded panels get hot spots, which can lead to overheating and damage.
Shorter Lifespan – Over time, growth breaks down the panel’s protective coating, leading to costly repairs.
System-Wide Problems – A few dirty panels can lower the performance of the entire solar array.
To learn more about how shade affects solar panels, check out EnergySage’s guide.
How Professional Cleaning Helps
Regular professional cleaning is the best way to stop organic growth. At The Solar Cleaners, we offer custom cleaning solutions for commercial, utility, carport, and ground-mounted solar systems. Our team removes dirt and buildup safely, helping your panels work at full power.
We also offer scheduled maintenance to keep your panels in top shape all year. Don’t wait for high energy bills or costly damage. A simple cleaning can save you thousands.
Take Action – Protect Your Investment
Has it been a while since your last solar panel cleaning? If your system isn’t performing well, or you see signs of organic growth, contact The Solar Cleaners today. We’ll inspect your system and provide a cleaning plan to boost energy output.
For more solar panel maintenance tips, check out:
For more industry best practices, check out the Solar Energy Industries Association’s guide.
In short, don’t let organic growth ruin your investment. Instead, trust The Solar Cleaners to keep your panels clean and your energy production high!