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Rooftop Solar Panels New Jersey - Residential Solar Power Energy

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Rooftop Solar Panel Cleaning

As the most common type of PV system, rooftop solar panels have a lot of dust and dirt that accumulates over time. Most homes don’t even have air filters or HEPA filters to remove small particles from exhaust. This causes dirt to accumulate on the surface of the solar cells faster than they can naturally cleanse themselves. The buildup causes reduced efficiency, decreased output, and increased maintenance costs.
Fortunately, there are ways to combat this issue so it doesn’t become a bigger problem. To keep your system clean and avoid any potential negative effects from buildup, regular cleaning is recommended once every few weeks or as needed with extended periods between cleanings. Read on to find out more about why you need regular cleaning, how often you should do it, and what tools you can use for the task.

Why should you clean your rooftop solar panels?

The largest benefit of regular cleaning is a reduction in maintenance costs. As dirty panels accumulate, the output decreases and efficiency decreases as well. In addition, this accumulation can cause reduced lifespan for your system. Regular cleanings may even eliminate the need for additional equipment like an air and water filter.
Cleaning your solar panel helps increase life expectancy and reduce operating costs by making sure that the cells are free from dirt build-up. Cleaning also prevents potential negative effects from buildup like reduced efficiency, decreased output, and increased maintenance costs.

Types of Roof-Top Solar Panel Cleaning

A professional cleaning service is a pricey option, but it is effective. You can also use a variety of tools to clean the panels yourself at home.
If you’re looking for something more cost-effective, you can manually clean your solar cells by using a strong vacuum cleaner, water hose, and a squeegee or small brush. Another option is to use a liquid cleaning agent that includes a scrubber on the end that can be attached to the end of your hose. For stubborn dirt buildups, an old toothbrush works well with some dish soap mixed in to loosen up the grime so it can be removed easily.
The key is making sure you are regularly cleaning your panels so they remain efficient and don’t produce as much heat from sunlight. This will reduce maintenance costs in addition to prolonging their life span.

When to clean your rooftop solar panels

First, you need to know when to clean your rooftop solar panels. We recommend cleaning them at least once every few weeks.
Cleaning should also be done in the evening or early morning before the solar panels get too hot. This prevents damaging any of the cells as they heat up and gets rid of any debris that could cause problems later on in the day.
As a rule of thumb, it’s best to clean your panels after a period without direct sunlight for about half an hour. In other words, if you haven’t received any sun for an hour in that day, it is best to clean your panels early in the morning rather than late afternoon or evening.

Different ways to clean your rooftop solar panel

Different methods can be used to clean your rooftop solar panel. They include using a vacuum cleaner, using a broom and dustpan, or using a wet rag.
While these methods are all effective, they each have their own limitations. There is no “one size fits all” approach for cleaning your system and what works for one person may not work for someone else.
Cleaning with a vacuum cleaner
A vacuum cleaner is one of the most popular ways to clean your rooftop solar panel. This method gets dirty quickly but doesn’t require any additional equipment like a wet rag does. You must make sure that you’re buying the right type of vacuum cleaner suited for this task though as some models will not be suitable for the job or may get stuck in cracks and crevices on your roof.
Cleaning with a wet rag
Wet rags can easily be found at home stores and drugstores but you’ll still need to purchase them separately if you don’t already have any on hand since it’s not included in the package with any other cleaning products. They are easy to use and quickly get rid of large amounts of dirt at once without much effort involved. However, they cannot easily reach into tight spaces like vents or corners so you’ll need to use other tools if needed along with the wet rag.
Cleaning with a broom and dustpan
A broom and dustpan can also be used to remove large amounts of dirt from your roof but this method takes more time to clean your system


A clean solar panel is a happy solar panel. Cleaning your solar panels can extend their life, saving you money in the long term.

If you would like to know if we can install solar and put thousands of dollars in your pocket for doing it, use the form below to submit your electric bill for a no cost, no obligation evaluation.