How to Clean Solar Panels From the Ground (Powerful Guide)

Cleaning solar panels properly is crucial to their longevity and optimal performance. Even if solar panels are inaccessible on rooftops, there are effective techniques for cleaning them safely. So, the question is- how to clean solar panels from the ground?

Well, the first step in cleaning solar panels from the ground is to turn them off. Then, using a soft brush with mild soapy water and gentle rinsing. Leaving panels to dry on their own. Also, regular maintenance every few months helps maintain efficiency and performance.

We will examine how to clean solar panels without climbing ladders or risking injury. Whether you own a home or are a business owner, these simple yet effective methods can help you maximize energy production.

Let’s roll on!

Why Should You Clean Your Solar Panels?

how to clean solar panels from the groundCleaning solar screens ensures maximum energy production and extends their lifespan. The build-up of dust and grime over time can cause corrosion and scratches on the panel’s surface. Regular maintenance improves system longevity and helps identify issues needing immediate attention.

Furthermore, there are several different reasons why you should clean solar panels:

Reduce Greenhouse Gas Emissions

Aside from economic benefits, solar panel washing reduces greenhouse gas emissions associated with fossil fuel electricity generation. Investing in regular cleaning routines for solar panels allows you to actively participate in a greener future while minimizing dependence on nonrenewable resources.

Boost Your Energy Output

Solar panels convert sunlight into electricity. When the panels are dirty, they can’t generate electricity at their full capacity. Regular cleaning helps maximize your solar system’s energy output, ensuring you get the most out of your investment.

Retain Efficiency

Solar panels can accumulate dust, dirt, pollen, bird droppings, and other debris over time. It blocks sunlight from reaching the photovoltaic cells, preventing sunlight from converting into electricity.

As a result, dirty solar panels can reduce energy output by up to 30%. More sunlight can be absorbed by cleaning the panels, increasing their efficiency and energy production.

Enhance Life Expectancy

While solar panels are designed to withstand various environmental conditions, dirt, and grime can lead to overheating. Most of the time, excessive heat can degrade the components of the panels, potentially shortening their lifespan. Cleaning the panels helps prevent overheating and maintains their structural integrity.

Reduced Costs

Having efficient solar panels generates more electricity. Means you rely less on energy from the grid, leading to lower electricity bills. Furthermore, you can sell excess energy your panels generate back to the grid if you’re part of a net metering program.

Considering Environmental Impacts

Solar energy is an eco-friendly and sustainable energy source. Keeping your solar panels clean and running It efficiently reduces your carbon footprint.

Manufacturer Warranty

Many solar panel manufacturers include warranties that cover a certain period. However, these warranties often have stipulations, including proper maintenance. Regular cleaning can help you comply with these warranty terms, ensuring you’re eligible for support if any issues arise.

Risks Associated with Safety

When cleaning your solar panels, you may also need to inspect them for signs of damage or wear. Early detection and resolution can prevent more serious problems. If you are cleaning rooftops or height-mounted panels, follow safety guidelines.

How to Clean Solar Panels From the Ground: Best Troubleshooting Guide Ever

Solar panels are a significant investment that requires regular maintenance to ensure optimal energy production and longevity. Cleaning solar panel is essential to maximize their efficiency. To avoid damaging solar panels, make sure you follow proper cleaning techniques.

Now let’s examine how you can clean solar panels from the ground:

What You Will Need

Collect the necessary tools for the cleaning task:

  • A soft, non-abrasive brush or long-handled mop
  • A bucket of water mixed with a mild, eco-friendly soap
  • A garden hose with a gentle nozzle attachment

Process 1: Take safety into consideration before you begin. Make sure your solar panel system is turned off to avoid electrical hazards. Ensure you clean the panels when they are not generating electricity to ensure your safety.

Process 2: You can create a gentle cleaning solution by mixing mild soap with water. Avoid using harsh chemicals or abrasive cleaners that could damage the panels.

Process 3: Wash each solar panel gently with soapy water after you dip the brush or mop into it. Use horizontal strokes to avoid causing any scratches or damage.

Process 4: Use the garden hose with a gentle nozzle to rinse off the soap and loosen the dirt. Use low-pressure sprays to avoid damaging the panels.

Process 5: After rinsing, allow the panels to air dry naturally. It will prevent water spots and streaks from forming. Do not use abrasive materials or cloth to dry the panels, which could cause scratches.

Process 6: While cleaning, take the opportunity to inspect each panel for any visible damage, cracks, loose wires, or signs of wear. If you notice any issues, consider seeking professional assistance for repairs.

Process 7: Keep your solar panels clean a few times yearly, adjusting frequency according to weather and dirt accumulation. Regular maintenance will help ensure that your panels remain efficient and productive.

Process 8: Create a cleaning solution using a 1:1 mixture of white vinegar and water for stubborn residue or marks. Apply the solution with a soft cloth or sponge, then rinse thoroughly with clean water.

Safety Tips For Solar Panel Cleaning

You can safely clean solar panels by following these tips:

  • Clean panels when not generating electricity, like early morning or late afternoon.
  • Ensure a secure footing or ladder setup before starting.
  • Use a gentle nozzle attachment on your hose to avoid high-pressure water.
  • Wear appropriate footwear, gloves, and eye protection.
  • Stay aware of electrical connections and avoid touching exposed wires.
  • Use soft, non-abrasive materials to prevent scratches.
  • Use a non-slippery brush or mop handle to prevent accidents.
  • Only use mild, eco-friendly soap solutions for cleaning.
  • Choose clear, calm days to prevent accidents or panels from getting too hot.
  • If uncomfortable or for hard-to-reach panels, hire a professional cleaning service.
  • While cleaning, visually inspect panels for any damage or issues.

How Often Should You Clean Your Solar Panels?

The frequency of cleaning solar panel on roof depends on location and conditions. In dusty/polluted areas, clean every 1-2 months. Moderate areas, 3-6 months. Cleaner environments, 1-2 times yearly. Consider rain and inspect regularly. So, it’s best to Follow the manufacturer’s guidelines.

Usually, cleaning your solar panels depends on several factors, including location, weather conditions, and the amount of dirt and debris in the area. Let’s check into the details:

Considering the Season

It would help to clean your solar panels before solar energy generation peaks. Spring and early summer are ideal times to clean your panels in many places.

Examination Visually

Regularly inspect your solar panels for any visible dirt buildup or debris. If you notice a significant reduction in energy production or the panels look noticeably dirty, it’s time to clean them.

The Dusty Zone

You may need to clean your solar panels more frequently if you live in an area with high dust, pollen, or pollution levels. It could be as often as every 1-2 months.

Normative Conditions

In regions with moderate levels of dust and debris, cleaning your solar panels every 3-6 months may be sufficient.

Fresh Environments

A relatively clean environment with minimal debris might allow you to clean your solar panels once or twice a year.


Solar panels are generally installed at an angle to allow rainwater to flow down the surface and self-clean. Consult a solar panel installer or professional maintenance service for the best cleaning schedule.

When Should You Clean Solar Panels?

It is more effective and thorough when you clean your solar panels at the right time and under suitable conditions. Here’s a detailed explanation of the recommended timing and conditions for rooftop solar panel cleaning.

1. Overcast Day

An overcast day for solar panel cleaning is advantageous for a few reasons. Usually, Cleaning panels in direct sunlight can lead to rapid drying of cleaning solutions, which may result in leftover streaks or residue.

It is easier to apply and rinse off the cleaning solution in overcast conditions. Cleaning solar panels under the scorching sun can expose you to heat and potential sunburn. Also, minimizes the risk of sun-related health issues and discomfort.

2. Early Morning or Evening

Cleaning your solar panels during the early morning or evening hours has several benefits. Solar panels can get quite hot during peak daylight hours. Keeping the panels cool reduces the risk of rapid evaporation, ensuring thorough cleaning and preventing streaks.

Besides, Solar panels generate the most electricity during midday when the sun is strongest. Cleaning during the early morning or evening hours has less impact on electricity generation. It ensures that your energy production isn’t significantly disrupted.

3. Cooler Months

Cooler temperatures are conducive to using cleaning solutions without them evaporating too quickly. It allows the cleaning agents to effectively break down dirt and grime for easier removal.

Even during warmer months, cleaning solutions can dry quickly on the panels, forming streaks or residue. As the weather cools, you can thoroughly clean the panels without leaving behind grease or marks.

Who Can Clean Solar Panels?

Anyone can clean solar panels if they follow the proper procedures and take the necessary precautions.

Many people often wonder who can perform this task effectively. The answer may surprise you; it’s more than professionals or specialized cleaning companies. Let’s take a deep look:


Those familiar with basic maintenance can clean ground-level panels, following safety guidelines and using non-abrasive tools. Another alternative is using robotic cleaners designed specifically for cleaning solar panels.

These devices use brushes or pads to move across the surface of the panels. It removes dirt and debris without human intervention. They are particularly useful for larger installations where manual cleaning would be difficult.


For rooftop installations or safety concerns, hire Clean Energy Council-accredited technicians. They have the expertise, proper equipment, and safety protocols and can maintain warranties.

Professional Services

Hire a professional service, particularly if your solar panels are in hard-to-reach areas or require extensive cleaning. Their tools and expertise ensure your solar panels are cleaned safely and effectively. Consider hiring a solar panel cleaning service for complex installations or convenience. They offer expertise and insurance and save you time.

How Much Does It Cost To Clean Solar Panels?

The cost to clean solar panels varies by location, panel count, and service. Average residential cleaning may range from $150 to $300, subject to factors like frequency and system size.

Here’s a detailed explanation of the cost considerations:

System Size

The size of your solar PV system (measured in kilowatts or kW) can impact the overall cost. Larger systems require more time and effort to clean. The cost of $15-$20 per panel is a rough estimate. Let’s break down it:

  • Average-Sized 2KW Solar PV System with 10 Panels:

Number of Panels: 10

Estimated Cost per Panel: $15-$20

Estimated Total Cost: 10 panels x $15 (minimum) = $150, or 10 panels x $20 (maximum) = $200

  • Annual Cleaning Cost:

Assuming one cleaning per year: $150 (minimum) – $200 (maximum)

Remember that these estimates are based on general averages and may differ depending on your circumstances. Ask about pricing structures, additional services, and inclusions included in the price before hiring a cleaning service. Using this method, you can estimate your solar panel cleaning costs.

How Location Affects Solar Panel Cleaning?

Usually, geographical location affects solar panel cleaning needs. Polluted or wooded areas accumulate grime and debris, while deserts gather sand and ash. Rooftop angle matters too, and larger commercial systems require frequent cleaning for efficiency. Robotic solutions suit bigger setups.

Solar panels accumulate grime and oil more quickly in areas with high pollution, such as near factories, highways, or airports. Wooded areas also face challenges due to fallen leaves, which obstruct sunlight, and bird droppings, which can damage panels due to acidity.

Meanwhile, dust and sand accumulate on solar panels in desert climates like the Middle East or the US Southwest, blocking sunlight and scratching surfaces. Moreover, the angle of the rooftop where solar panels are installed impacts their cleaning requirements.

However, the natural self-cleaning effect of rainwater runoff helps clean panels installed at an angle. However, flat-mounted panels are more prone to water pooling, leaving residue and hindering energy efficiency.


Q: How Do You Clean Solar Panels Without Water?

A: A soft brush or microfiber cloth is the best way to clean solar panels without water. Ensure panels are cool and take care to prevent scratches.

Q: Is it Safe to Clean Solar Panels with Water?

A: It’s safe to clean solar panels with non-heated, potable water and normal pressure. You can use glass cleaner or a 3% soap-water solution. Pressurized water up to 1,500 psi is acceptable when needed. Avoid hard or mineral-rich water to prevent damage to your panels.

Q: What is the Proper Way to Clean Solar Panels?

A: Properly cleaning solar panels involves turning off the system and choosing a cloudy day or early/late hours. Then use a soft brush and mild soapy water, and gentle rinsing. Finally, check for damage and air drying.

Q: Will it Rain Clean Solar Panels?

A: If solar panels are not flat, rain can clean them. Occasionally, panels near factories, highways, or farms with high dust exposure may need manual cleaning.

Q: Can I Get Electrocuted Cleaning Solar Panels?

Solar panels pose a low electrocution risk. It generates low-voltage direct current (DC) electricity. Turning off the system before cleaning further reduces the risk. In case of uncertainty or rooftop installations, you should consult professionals.

Final Words

The journey towards a cleaner and sustainable energy future involves the adoption of solar panels and their diligent care. A properly maintained solar panel contributes to the reduction of carbon emissions and the preservation of the environment.

However, we have done our best to explain about how to clean solar panels from the ground. Please read the whole article again if there is still any confusion. So, we can continue harnessing the sun’s power by following recommended cleaning practices.

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