Clean Solar Panels With Pressure Washer: Should You or Not?

Is It Right To Clean Solar Panels With Pressure Washer?

Is it right to clean solar panels with pressure washer?

The short answer is a surprising NO. It may seem intuitive to clean your solar panels with pressure washer, but it’s actually a lot more complicated than that.

This comprehensive guide will walk you through whether pressure washing is meant to be used for your precious solar panels. So, let’s dive in and shed some light on the best practices for maintaining your solar power system.

Should You Clean Solar Panels With a Pressure Washer?

Pressure washing solar panels is generally not recommended as a standard cleaning method.

While pressure washing can effectively remove stubborn dirt, it carries several risks that can outweigh its benefits. High-pressure water can damage the delicate surface of solar panels, compromise their protective coatings, or even crack the glass.

Additionally, the force of the water can push moisture into the electrical components of the panels, leading to electrical issues and potentially voiding warranties. Manufacturers of most solar panels typically advise against pressure washing and recommend gentler cleaning techniques to maintain the efficiency and longevity of solar panels.

Instead of pressure washing, it’s usually safer and more effective to clean solar panels using methods like a hose, soft brush, or a squeegee with soapy water. These methods can effectively remove dust, pollen, and light debris without the risk of damage.

However, it’s essential to follow the manufacturer’s guidelines and consider your local environmental conditions when determining the frequency and method of cleaning your solar panels to ensure they continue to perform optimally.

Things To Consider When You Want to Clean Your Solar Panels

Cleaning solar panels can help maintain efficiency, but pressure washing might not always be the best approach. Here are some considerations:

Manufacturer’s Recommendations

First and foremost, check the manufacturer’s guidelines for cleaning your specific solar panels. Some manufacturers advise against pressure washing, as it can potentially damage the panels or their protective coatings.

Dirt and Debris

If your solar panels are only lightly soiled with dust and pollen, a gentle cleaning method like using a hose, soft brush, or a squeegee with soapy water can suffice. High-pressure water may not be necessary for such cases.

Hard Water and Minerals

Mineral deposits can build up on the panels over time if you live in an area with hard water. In such cases, you may need a more thorough cleaning method. However, pressure washing might still not be required. Instead, consider using a water-fed pole system or deionized water to prevent mineral buildup.

Professional Services

Some companies offer professional solar panel cleaning services. They often use specialized equipment and techniques less likely to damage the panels than high-pressure washing. Hiring professionals might be safer, especially if unsure about the appropriate cleaning method.

Safety Concerns

When pressure washing, there’s a risk of falling from ladders or damaging the panels if the pressure is too high. Safety should always be a priority when cleaning solar panels.

Frequency

How often you need to clean your solar panels depends on your location and the environmental conditions. In dusty or pollen-heavy areas, more frequent cleaning may be necessary, but in other regions, less frequent cleaning might suffice.

While pressure washing can be effective in certain situations, following the manufacturer’s recommendations and exercising caution is essential.

In many cases, a gentler cleaning method is sufficient to maintain your solar panels’ efficiency and lifespan without the risk of damage. If you need more time, consider consulting a professional or the solar panel manufacturer for advice.

Understanding the Importance of Clean Solar Panels

Clean solar panels can capture more sunlight, ensuring maximum energy production. Over time, this can impact your energy bill and reduce your carbon footprint. Neglecting their cleanliness may result in up to a 25% loss in energy efficiency.

Alternative Ways to Clean Your Solar Panels

Cleaning your solar panels is essential to ensure they operate at their maximum efficiency. While pressure washing can be effective when done carefully, there are alternative ways to clean your solar panels without the potential risks associated with high-pressure water.

Here are some alternative methods to consider:

Manual Cleaning:

Manual cleaning involves using a soft brush or a squeegee with a long handle to remove dirt, dust, and debris from the solar panels. This method is gentle and less likely to cause damage than pressure washing.

Pros:

• Low risk of panel damage

• Cost-effective, as it requires minimal equipment

• Safer for rooftop installations

Cons:

• Requires physical effort, especially for large arrays

• May not be as effective for stubborn or sticky contaminants

Use a Hose and Nozzle:

Using a regular garden hose with a gentle nozzle attachment can effectively clean your solar panels. The water pressure from a hose is much lower than that of a pressure washer, reducing the risk of damage.

Pros:

• Low risk of damage to panels

• Easy and cost-effective

• Suitable for occasional cleaning

Cons:

• It may not be as effective at removing stubborn debris

• It requires manual scrubbing for better results

Solar Panel Cleaning Robot:

There are specialized solar panel cleaning robots available that can automatically clean your panels. These robots use soft brushes or microfiber cleaning pads designed to navigate the panels without causing damage.

Pros:

• Automated and efficient cleaning

• Minimizes the risk of damage

• Suitable for large arrays

Cons:

• Initial investment in the robot

• May require maintenance and monitoring

Water and Vinegar Mixture

A homemade cleaning solution using a mixture of water and vinegar can help break down dirt and residue on solar panels. Mix one part white vinegar with nine parts water and apply it with a soft cloth or sponge. Rinse thoroughly with clean water.

Pros:

• Environmentally friendly

• Safe for the panels

Cons:

• It requires manual scrubbing

• Less effective for very dirty panels

Rainwater Cleaning:

In some cases, rainwater can help naturally clean your solar panels, as raindrops can dislodge dust and dirt. However, this method relies on the frequency and intensity of rainfall in your area.

Pros:

• Environmentally friendly

• Requires no effort or cost

Cons:

• Not effective for heavy dirt or bird droppings

• Relies on weather conditions

While pressure washing can be an option for cleaning solar panels, alternative methods can be safer and equally effective. The choice of cleaning method should depend on your specific needs, the condition of your solar panels, and your comfort level with each approach.

Regardless of your chosen method, regular cleaning and maintenance are essential. Being extremely careful while cleaning ensures your solar panels produce clean energy efficiently.

Safety Considerations

While pressure washing is an excellent cleaning method, it’s essential to exercise caution to avoid damaging your solar panels. Here are some safety considerations:

• Use the right pressure settings. Adjust the pressure washer to a gentle setting to prevent any panel damage.

• Choose a professional service. Hiring experienced professionals ensures your panels are cleaned safely and effectively.

• Wear protective gear. If you clean the panels yourself, wear gloves, safety harnesses, and goggles.

DIY vs. Professional Solar Panel Cleaning Services

Now that you know the benefits of pressure washing, you might wonder whether to DIY or hire professionals for the job. The decision depends on various factors.

For smaller solar panel setups, a DIY approach might suffice. You can invest in a pressure washer and follow safety guidelines. However, opting for professional services is usually best if you have a larger installation or lack experience. They have the expertise, equipment, and safety measures to ensure a thorough and safe cleaning process.

Maintenance Tips for Keeping Solar Panels Clean

Maintaining clean solar panels isn’t just about occasional soft washing. Here are some tips to help you keep your panels pristine between professional cleanings:

1. Regular Visual Inspections: Check your panels for dirt, debris, or bird droppings. Early detection can prevent buildup. A monitoring system is a good investment.

2. Trim Surrounding Trees: If trees are near your panels, trim branches and leaves to minimize falling debris.

3. Rain as Nature’s Cleaner: Let nature lend a hand! Rain can help wash away some dirt and dust. However, don’t solely rely on it for cleaning.

4. Bird Deterrents: Install bird deterrents to prevent birds from perching on your panels and leaving unwanted surprises.

Takeaways

Your solar panels play a crucial role. Keeping them clean through soft pressure washing can enhance their performance and lifespan while reducing your environmental impact. Cleaner panels mean more energy savings and a brighter future for us all.

Don’t wait to experience the benefits firsthand. Whether you choose DIY or hire professionals, ensure your solar panels shine bright and maximize your solar power potential. Clean solar panels are the key to harnessing the sun’s full power and reaping the rewards.

Ready to maximize your solar power energy output? Contact Judge Mobile Wash at 610-692-9274, a pressure washing company, today to schedule a professional solar panel cleaning service. 

We have the expertise and equipment to ensure your panels are spotless and performing at their best. We hope this answers your question, “should you clean solar panels with pressure washer.”