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Best Tips for Industrial Solar Panel Cleaning

By March 2, 2023Blog, News
Coldwell Solar machine cleaning a row of ground-mounted solar panels on California agricultural land.

Have you installed a solar panel system for your industry and want to maintain its power output? Then you need to keep up with the cleaning. Solar panels are laid out in the open, and there are many things that can make them dirty and prevent them from running to their full potential. In this article, we will help you learn the best tips to clean your industrial solar panels.

How Do Industrial Solar Panels Work?

Rows of solar panels on the roof of an industrial plant with industrial smokestacks in the background.

Industrial solar panels use the energy from the sun that falls on photovoltaic panels that release free electrons in order to generate electricity. These solar panels are made of silicon, and since they are semiconductors, they create an electrical field with the help of positive and negative layers. These layers are made of boron and phosphorus. The plates generate AC, and an inverter is used to convert it into DC for industries to use.

There are many benefits of using industrial solar panels that can push you to finally install a system. For instance, you will be self-sufficient when it comes to electricity and you will not have to worry about any changes in the grid electricity.

Furthermore, industries contribute greatly when it comes to greenhouse gas emissions, and if you want to run a large operation, it is better for you to switch to sunlight. This will help you keep your production as high as you can and ensure that you don’t impact the environment negatively.

Therefore, as an industry, you must think about making the switch to solar so you can not only protect the environment but also ensure that your business excels. However, things do not end there after you have installed the solar panels. You need to ensure that these panels work to their maximum potential, and to do that; you must keep up with the cleaning and maintenance.

Best Tips For Industrial Solar Panel Cleaning

Solar company worker standing behind a row of ground-mounted solar panels and cleaning it with a soft mop.

There are several ways you can keep your solar panels clean but you need to ensure that the cleaning methods you use are in accordance with your solar system and will give the best cleaning possible.

Solar panels are not high to maintain but they do require regular cleaning so they keep running to their maximum potential. There are several things that can accumulate on solar panels, for instance, solar panels can gather a lot of dirt, bird droppings, and even fallen leaves. It is very important for you to clean them off properly so the panels can perform at their maximum potential. Here are some of the best tips you can use to clean your industrial solar panels.

Brushes & Sponges (Soap-less)

There are many solar companies who have discovered that with the help of deionized water and a brush, they can easily clean the panels without using soap at all. Soap should not be used when cleaning solar panels because soap usually leaves a residue on the panel. Not only will that affect the efficiency of electricity production, but the soap also causes the panels to gather dirt. Therefore, it is best not to use any cleaning agents.

Other companies also use a mixture of sorts such as diluted vinegar and hydrogen peroxide using a brush to remove all the dirt.


One of the best and most effective ways to clean your solar panels is to hire a cleaning company or ask your solar provider to do it for you. These experts will manually clean your solar panels. These companies have the best tools and experts that help them do the job perfectly.

These companies might even use the latest technologies; you can rely on them to clean the solar panels as expertly as they can. You can trust them to do a good job. They will also ensure that the system remains unharmed and is cleaned thoroughly.

Nanoparticle Coating

This is one of the latest technologies for solar panels. The solar system accumulates a lot of dirt. This is because the material is as such. Dust can easily settle here, and if your industry is in a dusty place, then you can expect a lot of dust on the panels that you must clean regularly.

However, with nanoparticle coating, you will add a film to your solar panels that prevent any dirt or grime from accumulating on them. No matter what temperatures you live in or how dusty the area is, your solar panels will remain safe from dirt accumulation. You can easily clean the panels off with water, and the panels remain as good as new. Furthermore, the coating is transparent. This means that it will not affect the production of electricity.


Companies that operate on a large scale can use robotics for their solar panel cleaning. These robots are both automatic and semi-automatic that are designed exclusively to clean solar panels. Robotics is a very convenient option because they can easily clean the solar panels that are in hard-to-reach places. For instance, solar panels on roofs and greenhouses are hard to clean.

You can also get fixed roof robots if you have a bigger installation for your industry and are located in a very dusty area such as the desert. These robots use airflow to clean off the dirt and grime, this is because if they were to use high-pressure water, it would damage the panels and ruin the efficiency. These robots also run on solar power and can easily recharge themselves between each cleaning cycle.


Vibrating solar panels can also be an effective way to clean the surface. Some companies use a DC motor on the panel to vertically vibrate it and get rid of all the dust. With this technique, you can minimize the chances of damaging your solar panels.

How To Know When It Is Time To Clean Your Commercial Solar Panels

Close up view of a dusty solar panel and a man's hand with dirty fingers and dust marks left on the panel.

It can be difficult to tell if your solar panels need cleaning and maintenance if you are new to the concept of solar panel systems and have only recently installed them.

You Can See The Dirt

One of the most obvious telltale signs of a dirty solar panel is that you can easily see the dust on it. You can climb onto the roof or wherever you have kept your solar panels and inspect them for dirt, bird droppings, and grime.

Once you are convinced that the solar panels are dirty, you must contact an expert immediately and ensure that you clean them as soon as possible so it does not affect the efficiency of your solar panels.

Poor Efficiency

If you have been noticing a drop in the efficiency of your solar panels and there is no reason for that to happen then it is mostly because of dirty solar panels. If dirt is accumulated on solar panels, they will not receive the amount of sunlight they should, and that can affect the production of electricity.

Suppose you feel that the solar panel system is fairly new and the depreciation in electricity generated is higher than normal. In that case, you must consider getting your solar panels professionally cleaned.

Once the surface is completely clean, more sunlight will fall on the panels causing them to generate more electricity.

It Has Been A Long Time

If you want to maximize your solar panel usage and ensure that it produces good amounts of electricity, then you must maintain it properly. Solar panels should be maintained regularly to prevent any dust or dirt from accumulating. It is best to clean your solar panels every year to ensure that they are operating as efficiently as they possibly can. However, you can decrease the duration between every clean cycle if you feel that your solar panel system needs cleaning.




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