How to Clean a Solar Panel the Right Way

Solar panels are an essential part of any solar energy system, converting sunlight into electricity to power our homes and businesses. To ensure they operate efficiently and generate maximum energy, it's crucial to keep them clean.

In this guide, we'll walk you through the proper way to clean your solar panels, with tips from solar panel manufacturers in Rajkot, a city known for its growing solar industry.

Why Clean Your Solar Panels?

Solar panels are designed to be durable and weather-resistant, but they can accumulate dirt, dust, pollen, bird droppings, and other debris over time. This build-up can reduce the panel's efficiency, preventing them from generating as much electricity as they should.

A reduction in efficiency means you're not getting the most out of your solar investment, which can lead to higher electricity bills.

Cleaning your solar panels is essential for several reasons:

Maximize Energy Production: Clean solar panels can generate more electricity, helping you save money on your energy bills and potentially earn money through net metering.

Prolong Lifespan: Regular cleaning can extend the life of your solar panels, reducing the need for costly replacements or repairs.

Maintain Warranty: Many solar panel warranties require regular maintenance, including cleaning, to remain valid. Neglecting this can void your warranty.

Environmental Impact: Solar energy is one of the cleanest sources of electricity. By keeping your panels clean and efficient, you're contributing to a greener planet.

Now that you understand the importance of cleaning your solar panels let's delve into how to do it correctly, with insights from solar panel manufacturers in Rajkot. 

Check Manufacturer Guidelines

The first step to cleaning your solar panels is to consult the manufacturer's guidelines. Each manufacturer may have specific recommendations for cleaning their panels, and following these guidelines is crucial to avoid damaging your investment. Some manufacturers may even offer cleaning kits designed for their panels 

Choose the Right Time

Cleaning your solar panels on a sunny day is generally ideal. The sunlight can help quickly dry the panels, preventing water spots or streaks. However, avoid cleaning them during the hottest part of the day to prevent the cleaning solution from drying too quickly.

How to Clean a Solar Panel the Right Way

Start with Dry Cleaning

Begin by using a soft brush or sponge to remove loose dirt, dust, and debris from the panels. Gently scrub the surface to avoid scratching the glass. This dry cleaning step will make it easier to remove stubborn stains later.

Prepare a Cleaning Solution

In a bucket, mix a solution of water and mild dish soap or a specialized solar panel cleaning solution. Avoid using abrasive or harsh chemicals, as they can damage the panels.

Wash the Panels

Use the hose to wet the panels with clean water. Then, gently scrub the panels with the soapy solution using a soft brush or sponge. Be sure to clean the entire surface, paying extra attention to any areas with stubborn stains.

Rinse Thoroughly

Once you've scrubbed the panels, rinse them thoroughly with clean water using the hose. Make sure to remove all soap residue.

Use a Squeegee

To prevent water spots, use a squeegee with a rubber blade to remove excess water from the panels. Start from the top and work your way down, making overlapping passes.

Inspect for Residue

After cleaning, inspect the panels to ensure there's no soap residue or streaks left. If you notice any, rinse and squeegee again until the surface is spotless.

Dry Completely 

If the weather permits, allow the panels to air dry. This will help prevent the formation of water spots. If you live in an area with hard water, consider using a water softener or deionized water for the final rinse to prevent mineral deposits.

Regular Maintenance

Cleaning your solar panels should be part of your regular maintenance routine. Depending on your location and climate, you may need to clean them every 3-6 months. Keep a record of your cleaning schedule to ensure you don't forget.


Cleaning your solar panels the right way is essential to maximize their energy production, extend their lifespan, and maintain your warranty. By following the tips provided by solar panel manufacturers in Rajkot and the steps outlined in this guide, you can keep your solar panels in optimal condition.

Remember that safety should always be a priority, so turn off your system before cleaning and take precautions when working at heights. Regular maintenance will not only save you money but also contribute to a cleaner and more sustainable future powered by solar energy. 

Also Read: Why Homeowner Should Consider Investing in Solar Energy