Essential Tips for Solar Panel Cleaning

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One of the prime advantages of solar panels is their low maintenance requirement post-installation. Nonetheless, given their exposure to outdoor elements and weather conditions on rooftops, regular cleanings are essential to ensure optimal performance.

Maintaining clean solar panels is crucial for their optimal performance, especially considering their exposure to dirt, dust, and debris. While rainfall helps, regular intentional cleanings are essential. Fortunately, cleaning solar panels yourself is straightforward. Here are the recommended tools you’ll likely need for the task.

Follow these key steps to maintain your panels!

Step 1: Consult Manufacturer Guidelines

Before starting the cleaning process, refer to the specific cleaning recommendations provided by your solar panel manufacturer. These guidelines can typically be found in the owner’s or installation manual, which is often available on the manufacturer’s website. Following manufacturer instructions ensures that you clean your panels properly without causing damage.

Step 2: Choose the Right Time

Avoid cleaning your solar panels during hot, sunny days when they can become extremely hot. Opt for cooler times of the day, such as early morning or late afternoon, to prevent the risk of overheating. 

Step 3: Rinse with Water

Begin by rinsing your panels with a garden hose to remove any loose debris or dirt. Avoid using high-pressure washers, as they can potentially damage the panels and compromise their integrity.

Step 4: Prepare Cleaning Solution

Fill a bucket with warm water and add a mild, non-abrasive cleaning solution or soap. Ensure that the cleaning solution is suitable for use on solar panels and won’t cause any damage.

Step 5: Clean the Panels

Using a soft sponge or squeegee attached to an extension pole, gently scrub the surface of the panels with the prepared cleaning solution. Focus on areas with stubborn buildup, such as bird droppings or pollen. Avoid using abrasive materials or harsh chemicals that could scratch or damage the panels.

Step 6: Rinse and Dry

After cleaning, thoroughly rinse the panels with clean water to remove any remaining soap residue. Allow the panels to air dry or gently wipe them with a clean, soft cloth to prevent streaking.

Note!

When cleaning your solar panels, focus on the surface of the panels and avoid direct contact with the wiring underneath. Regular cleaning helps maintain the efficiency of your solar panel system and ensures optimal performance over time.

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The cost of professional solar panel cleaning typically ranges between $5 and $15 per panel. For instance, if you have 20 panels installed, the total cost for professional cleaning could fall between $100 and $300.

Alternatively, if you decide to clean the panels yourself, you might spend around $100 on cleaning materials. However, your primary investment may be in acquiring a sturdy ladder if you don’t already have one.

Keep in mind that the price for professional cleaning services varies depending on location and the complexity of your solar system. Generally, opting for a professional cleaning service may entail slightly higher costs compared to DIY cleaning methods.

It’s advisable to consider hiring a professional for solar panel cleaning to mitigate the risk of injury and ensure effective maintenance. Engaging a specialized cleaning service is a convenient way for homeowners to upkeep their panels regularly while minimizing the likelihood of accidental damage.

Fortunately, there’s a wide availability of cleaning companies offering solar panel services, including those specializing in window washing. Additionally, your solar panel installer might provide recommendations for local cleaning services or offer cleaning services themselves.

Why Clean Your Solar Panels?

Dirty solar panels can obstruct sunlight, leading to decreased efficiency and energy production, ultimately impacting your savings on electricity bills. On average, neglecting solar panel cleaning can diminish lifetime savings by nearly $2,000. To optimize your home solar system’s performance, regular panel cleaning is highly recommended.

How Often Should You Clean Your Solar Panels?

In most areas, an annual or biannual cleaning suffices. However, regions with limited rainfall, like the southwest U.S., may require more frequent attention due to excessive dirt accumulation. Wildlife activity can also prompt more frequent cleanings, particularly if bird droppings are prevalent. Additionally, consider the panel angle and roof type, as flat surfaces may accumulate debris more rapidly.

Is Solar Panel Cleaning Worth It?

Absolutely! Routine cleaning is vital for maintaining panel efficiency and maximizing energy output. Neglecting maintenance can diminish performance, impacting monthly savings on electric bills. While DIY cleaning is cost-effective, it carries safety risks. Professional cleaning services offer safer, hassle-free alternatives, ensuring optimal results without endangering yourself.