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Solar Panel Cleaning

Solar Panel Cleaning

Solar panels are a great way to conserve energy and save on your electric bill, but many people don't realize that they need to be cleaned in order to perform at peak efficiency. Leaves, bird poop, and airborne particles (from dirt and pollen) all have the potential to build up on your solar panels, and dirty solar panels mean power loss. Grime and debris reduce the ability of the solar array to perform at full capacity, making your solar panel system less efficient. A solar array comprises several solar modules wired together, and each solar module is made up of solar cells, all mounted collectively in a frame. Solar cells, in turn, are made of semiconductor materials, such as silicon. One side of a solar cell is positive, the other negative. When sunlight hits a solar cell, it excites the electrons in the semiconductor material, and it's this energy that can be captured as electricity. If the cells aren't clean, then less sunlight is able to be absorbed and less electricity is generated.


The potential energy loss depends on the level of filth your solar panels have accumulated, but energy loss could reach as much as 25%. Some reports even bring the number as high as 30% for consumers who never clean their system.

Dirty solar panels can...

  • Lose efficiency and lifespan
  • Reduce overall system performance
  • May cause permanent module staining
  • See a loss of return on investment
  • Affect your limited warranty

Regular cleaning can...

  • Ensure a maximum output
  • Maintain your warranty
  • Save you money
  • Extend the life of your investment
  • Prevent permanent module staining
  • Give you peace of mind

"But my panels are self-cleaning and maintenance-free!"

This is a myth! When a panel is called self-cleaning, it tends to mean that the surface is hydrophobic. This means water droplets cannot stick to the surface. In essence, these surfaces aren’t exactly self-cleaning and maintenance-free. They do reduce the mineral residue that can block the sun from reaching the cells; however, in a dusty environment, a single solar cell within the panel can become inefficient, and this will affect the performance of the rest of the cells within the panel. As they are wired in series, if one cell is shaded, then the output of the entire panel is lower as a result.

Rain, alone, is not enough to ensure solar panels remain free from a build-up of dirt throughout one year, let alone a lifetime. Let N.E.E.W help get your solar panels clean and running at peak efficiency!

Solar panel cleaning

Starting as low as $174.99
  • Buy and schedule your service in 60 seconds
Verify New England Eco Wash, LLC