Steps to Clean a Solar Panel the Right Way

If you have solar panels installed on your property, then it’s important to clean them on a regular basis. Not cleaning your solar panels can lead to decreased efficiency and reduced performance. In this article, we will discuss the steps involved in cleaning a solar panel the right way. We will also answer some of the most commonly asked questions about solar panel cleaning. So if you’re looking for tips on how to clean your solar panels, read on!

Step 1: Safety First

Before you start cleaning your solar panels, it’s important to take some safety precautions. First, make sure that the power is turned off. You don’t want to risk electrocution while you’re cleaning your panels! Second, use a ladder or other stable platform to reach the top of your solar panel array. Never stand on the panels themselves, as this could damage them.

Consider wearing gloves and a dust mask to avoid getting dirt and debris in your eyes or mouth. When you’re finished cleaning, wash your hands thoroughly. Safety is always the top priority when working with electricity, so make sure you take all necessary precautions.

If you skimp on safety, you could seriously injure yourself or damage your solar panels.

Step 2: Inspect the Panels

Once you’re in a safe position, take a close look at your solar panels. Look for any dirt, dust, bird droppings, or other debris that may be on the surface of the panels. If there is any build-up of dirt or debris, you’ll need to clean it off. Otherwise, it could prevent the solar panels from working properly.

Inspecting the panels on a regular basis will help you keep them clean and prevent any long-term damage. When you’re inspecting the panels, be sure to look for any cracks or other damage. If you see any damage, it’s important to have it repaired as soon as possible. Otherwise, it could lead to even more problems down the road.

A few general inspection protocols are as follows:

  •  Check if the panels are tilted too much, which can cause shading and inefficiency
  •  Look at the base of the panel to check for any physical damage
  •  Make sure that there is no debris blocking the panel
  •  Check the electrical connections to ensure they are secure

Step 3: Gather Supplies

Now that you’ve inspected the panels and determined that they need to be cleaned, it’s time to gather your supplies. You’ll need a bucket of warm water, a soft cloth or sponge, and a mild soap. Avoid using harsh chemicals or cleaners, as these could damage the solar panels.

Create a list of all the supplies you’ll need before you begin cleaning. This will help you stay organized and avoid any mistakes.

If you have a lot of dirt and debris build-up, you may need to use a soft-bristled brush to remove it. Be sure to use a brush with soft bristles, as harsh bristles could scratch the surface of the panels. Once you have all of your supplies, you’re ready to start cleaning!

Step 4: Begin Cleaning

Start by wetting down the surface of the solar panel with warm water. Then, apply a mild soap to the sponge or cloth and begin scrubbing the panel. Be sure to clean all sides of the panel, including the front, back, and edges.

If you’re using a brush, be sure to use gentle, circular motions. Don’t scrub too hard, as this could damage the surface of the panel. Once you’ve cleaned all sides of the panel, rinse it off with clean water.

Step 5: Dry the Panels

After you’ve rinsed the soap off of the panels, it’s time to dry them. Use a clean, soft cloth to wipe down the surface of the panels. Be sure to dry all sides of the panel, including the front, back, and edges.

Allowing the panels to air dry is also an option. However, this could take some time. If you’re in a hurry, it’s best to use a cloth to dry the panels.

Step 6: Repeat as Needed

Cleaning your solar panels on a regular basis will help them last longer and work more efficiently. Depending on the location of your panels, you may need to clean them once a month or once every few months.

If you live in a dusty area or have a lot of trees around your property, you may need to clean them more often. Inspect the panels regularly and clean them as needed.

Bonus Tips

 Use distilled water: If you live in an area with hard water, it’s best to use distilled water to clean your solar panels. Hard water can leave behind minerals that could damage the surface of the panels.

 Avoid cleaning in direct sunlight: When cleaning your solar panels, be sure to avoid doing it in direct sunlight. The heat from the sun could cause the soap to evaporate too quickly, making it difficult to rinse off.

 Don’t use a pressure washer: Avoid using a pressure washer on your solar panels. The high-powered water could damage the surface of the panels.

 Use ladders safely: If you need to use a ladder to reach your solar panels, be sure to do so safely. Avoid leaning the ladder against the panels, as this could damage them.

 Don’t climb on the roof: If your solar panels are installed on your roof, it’s important not to walk on it. Walking on the roof could damage the panels or cause you to fall and injure yourself.

By following these steps, you can clean your solar panels the right way and keep them working efficiently for years to come!


  1. What are the benefits of cleaning solar panels?

There are several benefits to cleaning solar panels, including improved energy production, extended panel life, and reduced maintenance costs. Dirty solar panels can lose up to 30% of their efficiency, so regular cleaning is essential to maintaining optimal performance.

  1. How often should solar panels be cleaned?

Solar panels should be cleaned at least once a year, and more often if they are located in dusty or sandy areas. If your panels are exposed to bird droppings or other debris, they should be cleaned as soon as possible to prevent permanent damage.

  1. What is the best way to clean solar panels?

The best way to clean solar panels is with a soft brush and mild soap and water solution. You should avoid using harsh chemicals or abrasive cleaners, as these can damage the delicate surface of the panel.

  1. Can I clean my solar panels myself?

Yes, you can clean your solar panels yourself with the proper tools and supplies. However, it is important to exercise caution when working on rooftops or other elevated surfaces. If you are not comfortable doing this, there are many professional solar panel cleaning services available.

  1. How much does it cost to have solar panels cleaned?

The cost of having solar panels cleaned will vary depending on the size and number of panels, as well as the location of the property. In general, expect to pay between $100 and $300 for a professional cleaning service.

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