Solar Panel Cleaning: Should You Hire a Professional Cleaner?

Introduction

Cleaning your solar panels impacts their ability to absorb sunlight and convert it into usable energy. Any obstruction preventing sunlight from reaching the silicon on the panels can affect your system's performance.

Solar panels installed with a sufficient tilt will naturally clean themselves during heavy rainfall, thus, when is it necessary to clean your solar panels and what is its significance?

Numerous Australian homeowners ponder the process of cleaning solar panels and its effect on their system's performance. The most common query revolves around the value of employing a solar cleaning service. This article elucidates essential aspects to consider.

Is it Worth Cleaning Your Solar Panels?

• Dirty solar panels may lead to decreased power output as dirt, dust, or debris accumulates on their surface. The degree of power reduction can fluctuate based on factors like dirt level, panel angle, orientation, local dirt type, and buildup duration.
• Studies suggest that dirty solar panels may encounter power decreases of 5% to 35% on average. Nonetheless, it's crucial to acknowledge that these figures are rough estimates, and various factors can impact the actual power loss.
• Consistent upkeep and cleaning of solar panels are vital to enhance their efficiency and power production. Maintaining clean panels, devoid of debris, guarantees they operate at peak performance, generating the utmost electricity.

Factors Affecting Solar Panel Efficiency?

Impact of Debris

Accumulated dirt and debris on solar panels can lead to notable energy production declines. These particles obstruct sunlight penetration, lowering the panel's energy conversion rate. Hence, regular cleaning is essential to maintain optimal energy production.

Seasonal Considerations

Various seasons pose distinct challenges for solar panel maintenance. Winter snowfall can entirely cover panels, autumn brings fallen leaves, and spring introduces pollen. Each season requires a tailored cleaning approach to uphold panel efficiency

Different environments and locations are subject to worse soiling than others.

What Makes Solar Panels Dirty?

• Bird Droppings- While a single bird dropping may not notably impact output, accumulations over time can substantially decrease it. Rainfall alone is often inadequate for cleaning bird droppings.
• Dirt Accumulation Around the Frame- Even though rainfall typically removes most dirt from solar panels with a tilt of 10 degrees or more, dirt often accumulates around the aluminum frame. This accumulation can result in losses and the development of hotspots.
• Debris- If you have trees nearby or face strong winds, larger debris may gradually get stuck between the panels, leading to shading and affecting the system's output over time.
• Fungi, Lichen or Mold- Just as you can encounter growths on your roofing sheets or tiles, you can anticipate similar occurrences over time on your solar panels.
• Particulate exhaust or dust- If you reside in an industrial area, you might notice nearby factories emitting byproducts that adhere to solar panels, making them challenging to clean.

When to Clean Solar Panels?

As a general guideline, it is advisable to clean solar panels at least once every 2-3 years to uphold their optimal performance.

The frequency of cleaning residential solar panels can vary depending on factors such as your location, weather conditions, and the environment surrounding your home.

Removing daily dust from solar panels typically occurs naturally during heavy rainfall if the panels are installed at a tilt. Therefore, cleaning solar panels is generally necessary in areas where heavier soiling is present.

Signs that Your Solar Panels Require Cleaning?

Visual Inspection

If you notice any obstructions blocking sunlight or if the solar panels appear discolored, it's typically a sign that it's time to clean them.

Reduced Performance

If the system falls short of expectations, like less power compared to prior periods despite sunlight changes, contact a solar panel service.

Insect or Pest Activity

Rising insect or pest presence near solar panels could suggest attraction to gathered debris; cleaning prevents damage, and bird deterrents are available.

Panels installed

Panels installed with minimal tilt lose the benefit of heavy rainfall for effective cleaning, leading to faster dirt accumulation and the need for more frequent cleaning.

Why Hire a Professional Solar Panel Cleaner?

Opting for a solar panel cleaning service is the optimal approach, offering numerous benefits. Here are a few:

Insurance Compliance

If your solar panels are insured, your insurance policy may have specific maintenance requirements. Hiring professional solar panel cleaners ensures these are met, safeguarding your investment.

Preventative Maintenance

In addition to cleaning, professionals can identify potential issues before they become costly problems. This may include panel damage, faulty wiring, or other technical issues.

Safety

Solar panels are often installed on rooftops, posing risks during cleaning. Solar panel cleaners are trained to handle such situations safely and are equipped with appropriate safety gear.

Time-Saving

Cleaning solar panels can be time-consuming. Hiring a local solar panel service frees up your time for other tasks while ensuring your panels are well-maintained.

Longevity

Regular, proper maintenance can prolong the lifespan of your solar panels. Solar panel cleaning services know how to clean and maintain panels to prevent damage, ensuring they last as long as possible.

Expertise

Professional solar panel cleaning services possess the expertise to clean panels for optimal efficiency. They comprehend crucial details, such as the appropriate cleaning agents and pressure levels, to avoid damage while maximising effectiveness.

Quick Guide To Cleaning Solar Panels

• Switch Off Your System: As a crucial safety measure, start by switching off your solar system at the switchboard, following the provided instructions.
• Rinse the Panels: Safely access the roof and rinse the panels to eliminate loose dirt and grime.
• Prepare the Cleaning Solution: Mix water with a gentle, soap-like dishwashing liquid or utilise a solar panel-specific cleaner. Avoid harsh chemicals to prevent panel damage.
• Apply the Solution: Use a soft cloth or squeegee to gently apply the cleaning mixture. Employ a soft-bristled brush for stubborn spots.
• Rinse Thoroughly: With a thorough water spray, wash away all soap and cleaning agents, ensuring no residue remains around the panel frames.
• Dry the Panels: Prevent water spots by drying the panels with a clean, soft cloth.
• Inspect: After drying, inspect the panels for any overlooked tough spots. If soap residue is visible, ensure it's cleaned off for a pristine finish.

Prioritising safety is critical for individuals contemplating a DIY approach to solar panel cleaning. It is critical to properly secure oneself with a harness before starting any job.

[Disclaimer: The blog post is for informational purposes only and should not be considered professional advice. For accurate and up-to-date information on renewable energy, refer to reputable sources and consult with experts in the field.]

Please don’t hesitate to contact Betta Value Renewable Energy if you have any questions about this topic.