Is Solar Panel Cleaning Worth It?

Solar panels are a great investment, they allow homeowners and businesses to save money on their energy bills while simultaneously supporting renewable energy. But today many are asking the question: is solar panel cleaning really important? In reality, though solar systems are low-maintenance, cleaning them is a significant factor in their energy efficiency and performance over time.

In this blog, we’ll delve into why solar panel cleaning is important, how often you should clean them and whether it’s best to hire a pro or do the job yourself.

Benefits of Cleaning Solar Panels

Regular solar panel cleaning can increase the production of energy up to 20%. Dust, bird droppings and pollution can also obstruct the sunlight necessary for the solar panels to work their best.

Here are some of the main advantages to cleaning your solar panels:

• Enhanced energy production: Despite cleaning costs, clean panels will absorb more sunlight and produce higher electricity yields.
• Longer lasting system: Cleaning your system regularly can help avoid the build-up of dirt that results in damage.
• Superior performance: The panels perform better which means you get the most from your installation.
• Comply with warranties: Most solar panel suppliers require regular cleaning to maintain the contract for a solar system.

In other words: Clean panels mean steady performance and more savings.

Impact of Dirty Solar Panels on Efficiency

If solar panels become dirty, their ability to produce energy drops dramatically. A layer of dirt, leaves or even bird droppings will cause a 10 - 25% power decrease. Even a light dusting can block the sun’s rays from being absorbed, especially in arid areas that don’t get enough rain to clean panels off on their own.

This consolidation over time results in performance degradation due to the added load on the system. It doesn't just cut into your ability to work at full energy, it increases how much money you spend on that energy. These losses can be eliminated through routine maintenance and your system will perform to its maximum potential.

How Often Should Solar Panels Be Cleaned

Solar panel cleaning frequency is based on your location and weather. In most areas of the USA, solar panels only need to be cleaned once or twice a year.

But if you reside in places with heavy dust, pollen or bird buildup, you may have to clean them more frequently. Keeping an eye on your energy input can help: If outflow suddenly drops, it may be time to have everything cleaned.

Hiring Professionals for Solar Panel Cleaning

Professional solar cleaning is generally the safest and most effective way to keep your system in working order. These professionals use cleaning tools for solar panels along with non-scratch equipment to get the dirt off without scratching your panels or their wiring.

Hiring professionals also ensures:

• Appropriate cleaning methods: They clean your panel using the correct method for its type.
• Safety: You may have to climb up on the roof to clean them yourself.
• Efficiency: Jobs can get done fast and well by the pros.

If panels are still under warranty, check if your solar panel installation company or service provider provides maintenance packages.

DIY Solar Panel Cleaning Tips

If you’d rather clean your panels yourself, it can be done with some care. Here’s how to do it safely:

• Turn off the system before cleaning
• Use a soft brush or sponge to remove loose dirt.
• Rinse panels with pure water, it’s safe to clean solar panels with water.
• Detergents or high-pressure blasters would scratch the glass, so they should not be used.
• Wash early morning or in the evening so that streaks are not left by hot surfaces.

If you have ground-mounted these panels or a very good access to your roof where the panels are located, DIY cleaning would work best. Always prioritize safety over convenience.

Cost of Solar Panel Cleaning Services

How much does it cost to clean a solar panel? Solar panel cleaning prices can differ from site to site, depending on the size of your system and how high or low your panels are installed. 

Typical cost for washing from a professional solar panel cleaning service in the USA is between $150 and $350 for each visit.

Bigger systems on steeper roofs may be slightly more due to extra safety requirements. This might feel like a cost, but the overall advantages, improved functionality and energy savings, among other benefits, which it provides make it a prudent investment.

Why Solar Panel Cleaning is Worth It

Maintaining clean panels allows your renewable energy system to perform properly. It increases energy efficiency; prevents lasting damage and ultimately helps you achieve the best possible return from your solar investment.

Whether you opt for pro or DIY cleaning, keeping up with panel maintenance will let your PV cells operate at peak efficiency all year-long.

At Direct Solar Power, we sell a wide selection of solar panels that are built to last, provide high performance and convenient upkeep.

Final Thoughts

So, is it worth it to clean solar panels? Absolutely. It is a small investment that returns in the form of improved energy performance, longer system life and higher efficiency.

Here to help you maximize your solar panel output? Come visit today at Direct Solar Power and check out our high-efficiency, low-maintenance solar solutions.

Frequently Asked Questions

1. How much does solar panel cleaning cost?

Professional cleaning typically costs between $150 and $350 per visit, depending on your system size and accessibility.

2. Can I clean my solar panels myself?

Yes, you can. Use plain water and a soft brush or sponge. Avoid chemicals and pressure washers.

3. How often should solar panels be cleaned?

Most systems should be cleaned once or twice a year. More frequent cleaning may be needed in dusty or polluted areas.

4. What are the benefits of cleaning solar panels?

Clean panels improve energy output, extend system life, and ensure warranty compliance.

5. Does rain clean solar panels effectively?

Rain helps but doesn’t remove sticky residues or heavy dirt buildup. Manual or professional cleaning is still necessary for best results.