Keep your solar panels clean to maximize their efficiency and ensure long-term performance. Solar panels can get dirty easily in California where pollen, dust, wildfire ash and bird droppings can be found. Solar panels generate electricity by absorbing sunlight. Anything that blocks this light, such as dust or ash from wildfires in recent years, can cause a significant drop in production.
California has a dry climate, which means that dirt can accumulate over time. Clean panels are more efficient, but dirty ones can reduce by 15-25%. This results in higher energy bills for businesses and homeowners. Regular cleaning will help you get the best performance from your investment.
This guide will cover all the information you need about safely cleaning solar panels, whether you choose to hire a professional or do it yourself.
Why it is important to clean solar panels
Solar panels absorb sunlight and convert it into electricity. When dust or debris cover the surface of the solar panels, less light reaches the photovoltaic cell and their ability to produce power is reduced. This can lead to a lower rate of energy production and higher costs over time.
California’s dry, arid conditions cause solar panels to become dirty more quickly than other states. California’s dry and arid climate causes dust and pollen on solar panels to settle, especially in places like Los Angeles and San Diego where it is rare to get rain. As ash particles from burning forest can cover solar panels and rooftops, wildfire seasons can add an additional layer of dirt. bird droppings can also be a problem for homes located near trees. These are difficult to remove with water.
Regular cleaning is important for to protect your warranty. For example, many solar panel manufacturers insist on regular cleaning in order to maintain warranty coverage. Neglecting maintenance can lead to unexpected repairs.
When and How Often Should You Clean Your Solar Panels?
The frequency with which you clean your solar panels depends on a number of factors, including where you live, how tilted your panels are, and the environmental conditions. Dust and air pollution may accumulate more quickly in urban and suburban areas. Homes near highways and industrial zones will need to be cleaned more frequently.
Most homeowners in California will find that cleaning solar panels between three and six months works best. If you live in dusty areas, or an area prone to fires, it may be necessary to clean them twice to three times a year.
Monitoring the output is one of the best methods to determine whether your panels require cleaning. Dirt buildup could be to blame for a sudden decrease in electricity production, even if the weather is clear. Visual Inspection is another way to verify. If panels are dull, cloudy or covered with bird droppings, you should clean them.
How to Safely Clean Solar Panels
Safety should always be the first priority before you begin cleaning. Before performing any maintenance, turn off your solar system to avoid any electrical hazards. Take the necessary precautions if your solar panels are on the roof. Use a sturdy ladder, wear non-slip footwear, and secure yourself with a safety strap, if required.
The cleaning process for solar panels mounted on the ground or those that are readily accessible is simpler. The most efficient and safest way to clean solar panel is with water and mild soap. A soft brush can also be used. It is usually sufficient to use a standard garden spray hose with nozzle in order to remove dust and dirt. When the dirt is stubborn, a mixture of warm soapy water with a soft sponge or microfiber fabric will help remove it.
Avoid using materials that are abrasive, such as scrub brushes or rough sponges, because they can scratch the surface of the panels, which will reduce their efficiency. high pressure washers should also be avoided, as they can cause damage to the glass and even seep water into the wiring.
The best time for cleaning your solar panels is early in the morning or late in afternoon . When cleaning them in the peak of sunlight, water can evaporate too fast and leave streaks. Solar panels can also become very hot when exposed to direct sunlight. This makes cleaning them uncomfortable and even dangerous.
Common Mistakes to Avoid When Cleaning Solar Panels
using harsh chemical such as bleach or ammonia based cleaners is one of the most common mistakes made by homeowners. These chemicals can remove the coating which helps absorb sunlight. Scrubbing Too Hard is another common mistake. This can cause scratches to the glass surface and permanently reduce their effectiveness.
The heat can cause the water to dry out too quickly, leaving mineral deposits and streaks. Cleaning them while the surface is still cool will result in a finish that does not leave streaks. walking on solar panels is also discouraged. Walking on solar panels can cause small cracks, which are not always visible. However, they can have a significant impact over time.
While rainfall can help clean panels in some cases, depending on it alone will not be enough for optimal efficiency. Rainwater does not wash away sticky pollen or bird droppings, which are best removed manually or by professionals.
When to Hire Professional Solar Panel Cleaning Services
Cleaning solar panels on rooftops can be dangerous, especially for homeowners who have them installed in difficult-to-reach places or steep roofs . Hiring a solar panel cleaning service is a safer, more efficient alternative in these situations.
Professional cleaners utilize specialized equipment such as deionized systems to remove dirt and grime, without leaving behind mineral residue. The professionals have the expertise to clean panels without damaging them. A professional cleaning will restore your panels to maximum efficiency if they have heavy buildup due to wildfire ash or bird droppings.
The cost for professional solar panel cleaning in California can range from 100 to $250, depending on the number of panels, and accessibility. Costs can reach 1,000 or more for commercial properties.
When you hire a professional, check reviews from customers, licensing and insurance. This will ensure that you are working with a reliable company.
How to Keep Solar Panels Clean for Longer
preventive maintenance will help to reduce the frequency of cleaning. Trimming trees near your panels can reduce the amount of bird droppings and leaves that fall on them. Installing bird repellents such as spikes or reflective surfaces will also help to keep panels clean.
Consider using coatings that protect against dirt accumulation if your area is prone for dust storms and wildfires. Some solar panels are equipped with Self-Cleaning Technology. This technology uses hydrophobic surfaces to repel dust and water. Even with these features, manual cleaning is recommended.
Apps that monitor your solar system’s efficiency can help you detect energy losses early and schedule cleaning before they become significant.
Conclusion
Cleaning your solar panel regularly is the easiest way to prolong their life and maintain their efficiency. You can save money on your energy bills by ensuring that your solar system produces the maximum amount of electricity.
Although DIY cleaning may be an option for some homeowners, professional services offer a cleaner that is deeper and safer, particularly for rooftop installations. Regular maintenance and preventative measures can help keep your panels performing at their best for many decades.
Contact Optimum Solar Power Inc to receive expert solar panel cleaning services in California and save energy.