How To Clean Solar Panels? Everything You Need To Know

How To Clean Solar Panels?


Solar panels have become increasingly popular for meeting home energy needs. By absorbing sunlight, they create a current that is converted to usable electricity, thanks to solar software for its prominent work for solar panels. The amount generated is determined by the amount of sunlight absorbed, so if solar panels are dirty, they are not as efficient—or cost-effective—as they could be.

In general, solar panels require little cleaning and maintenance in areas that receive regular precipitation. Rain can wash away a lot of the dirt and debris that might be preventing a home's solar panels from absorbing the most sunlight. Nevertheless, dirt can accumulate over time. Relying on rain to keep panels clean may not be sufficient, especially in dry climates and near construction sites and industrial lands.

With some easy-to-find tools, homeowners can learn how to safely clean and increase the efficiency of their solar panels and decide when it's best to get the help of a professional solar panel cleaner.

Why Do We Need To Clean Solar Panels?

When installing a residential solar energy system, the solar panels are usually flat, sloping, and on the roof. How often do you clean the roof? Probably less often and probably never. Why is that? Listen to you saying, "Isn't that the point of rain?" It's the same logic for solar panels.

In most cases, you don't need to clean your solar panels often. Everything that accumulates on it (e.g., dust and pollen) will be washed away by the next rain. However, cleaning the solar panels can be useful. If there are a lot of bird droppings on the panel, it is a good idea to get rid of them as the rain may not be able to wash them off easily. Even if you live in a drought-prone area or if it is raining, even if it is a very light foggy rain, you may need to clean them from time to time.

Does dirt and debris affect the effectiveness of solar panels? If so, how much is it? Yes, dirt and debris can affect the amount of sunlight that passes through to convert light into energy. However, the amount of efficiency loss is negligible. Probably less than 5%. Also, for a typical 5kW solar system, this is equivalent to a loss of about $20 in energy charges. Not monthly-total. And, in general, even if you're talking about a drought area, when it finally rains, everything will be washed away in a few months, and it may not even be worth the hassle of cleaning in the first place.

How To Clean Solar Panels?

How To Clean Solar Panels?

If you decide that you need to clean your solar panels, you have two main options. You can either hire a specialist or clean it yourself. Of course, many solar companies offer this type of service for a fee. They may offer it as part of their annual maintenance service or suggest doing it from time to time when installing the product. The truth is that what you get back at the cost of your energy bill does not exceed what you have to pay to these companies to get the job done. Solar companies often charge a large amount for this cleaning without adding any value to their energy bills.

On the other hand, if you're interested in doing it yourself, you usually have everything you need at home. In most cases, all you need is a hose and soap, and you're all set. This is also useful in areas that are prone to drought. Because what you do with hoses is basically rain if you have more hoses in the area.

There is a way to determine if the solar panel needs to be cleaned first. One is to physically inspect the panel for debris, dirt, bird droppings, etc. Another option is to use a monitoring system that informs you about the performance of your solar panels. This alerts you to the need for system maintenance, whether the system is mechanical, electrical, or clean.

Top 4 Solar Panel Cleaning Tips:

Avoid Using Abrasive Materials:

Abrasives can scratch the surface of solar panels, causing damage that affects solar power generation and often affects warranties. The best tool for cleaning solar panels is a water rod with a soft brush in combination with a squeegee. Water the solar panel with a low-pressure hose, scrape off dirt with a soft brush, and wipe the surface to dry.

Don't Use Pressured Water:

Applying high pressure water to a solar panel may seem like a quick and easy fix for a dirty solar panel, but this solution damages the panel's silicon seams and waters where water is not expected, may be included.

Safety First:

Be sure to shut down your PV system before you start cleaning the panels. See the wiring diagram you should have received after installation for information on how to do this. However, keep in mind that the roof wiring is still valid and can be subject to dangerous voltages. If you find any damage or exposure to your wiring, stop immediately and report it to your solar panel expert.

Avoid Cleaning In Hot Weather:

Be sure to shut down your PV system before you start cleaning the panels. See the wiring diagram you should have received after installation for information on how to do this. However, keep in mind that the roof wiring is still valid and can be subject to dangerous voltages. If you find any damage or exposure to your wiring, stop immediately and report it to your solar panel expert.

Solar Panel Cleaning Equipment:

If you are interested in cleaning your home solar panels yourself, there are various products you can use to clean them. But one after another, Check with your solar installer and supplier for solar panel cleaning information, recommendations, and prohibitions for cleaning your system. The most effective way to clean the

The solar module should be cleaned with a hose and a bucket of soapy water.It's just like when you wash your car at home. I don't want to scratch the panel, so it's best to use water and a non-abrasive sponge to apply the soapy water. Do not use a high-pressure sprayer when flushing the solar panels. High pressure attachments can damage the solar module itself.

Solar Panel Cleaning Equipment:

If you're using anything other than water, make sure it's soft, hard, and hairless, especially to get rid of annoying bird droppings. The sponge is not scratched, so it is the best product for cleaning solar panels. If you use a small amount of soap on the sponge, use one that cleans the dishes. Solar panels can be adversely affected by detergents and other powerful chemicals. Remember that ordinary water works best 99% of the time. Keep in mind that

Solar panels can get very hot when exposed to the sun. It is best to choose a cool, cloudy day to clean the plate. In addition to protecting yourself from burns, if you try to clean the solar panel at very high temperatures, the soapy water placed on the panel will quickly evaporate, leaving residue and dirt on the panel.

Rooftop Solar Panel Cleaning System:

What is the best way to clean a rooftop solar panel? For DIY, you need to find the materials at home. The best way to apply soapy water is to use a water and abrasive-free sponge, as you don't want to scratch the system.

Rooftop Solar Panel Cleaning System:

If you need further help, use a mild detergent.

Also, if you are wondering if you can use a high-pressure washer to clean your solar panels, we recommend using a regular hose. Using high pressure on items can cause damage. If the bird is confused and nothing stronger than the dishwashing liquid used for the dishes, use a sponge. No strong chemicals are needed to mark the plate.


It is best to work on the ground with a device that has a long handle. But if that's not possible and you decide to go to the rooftop, you need to take precautions.

For example, the rope should be attached to the safety harness to prevent it from falling to the ground. This is a method often used by professionals.

Moreover, without a helmet and seat belt, no one should be on the roof. It's a potentially deadly environment. Before you start, check out this advice for working at these heights. The job of cleaning solar panels is not worth your life!