The Ultimate Solar Panel Maintenance Guide

solar panel maintenance

Are you thinking about installing solar panels but you’re having doubts?

People who are considering adopting green energy often face this fear. In reality, maintaining a solar panel system is easy and won’t cost you a fortune.

But oftentimes people aren’t sure where to start. If this sounds like you, then this article is for you. Here is your ultimate solar panel maintenance guide to help you stay on top of keeping them operating at their best.

Do Solar Panels Need to Be Maintained?

Solar panels require regular maintenance to ensure optimal performance and efficiency. Although home solar panels contain no moving parts, they can still suffer from the buildup of dirt, dust and debris.

Additionally, trees and debris can create shadows that reduce the energy produced. This can be removed by cleaning the panels. Sunscreens and other shading materials should be removed as often as needed. 

Benefits of Regular Solar Panel Maintenance

Regular solar panel maintenance is an essential part of ensuring that your solar power system runs. There are many benefits to maintaining your solar panel system. The following are the most notable:

Cost Savings

Maintaining solar panels through cleaning and a visual inspection can reduce energy losses in the solar system. It can also increase energy output.

This will reduce monthly electricity bills and generate more energy. When home solar panels are well-maintained, the costs associated with solar power system maintenance are lower than with older, less efficient systems. 

Peace of Mind

With regular monitoring and maintenance, homeowners can have peace of mind that their solar panels are functioning as they should. Plus, their energy output is at its greatest potential.

A solar maintenance service also provides homeowners with a 24/7 monitoring service. This can alert them to any issues with the system, providing them with peace of mind about the safety and efficiency of their system. 

Tax Incentives

Homeowners can get a federal tax credit of up to 30 percent on the cost of setting up and maintaining a solar energy system. Additionally, homeowners may qualify for a renewable energy credit, or REC, as well as other credits depending on the state they live in. These incentives offer an important financial reward for homeowners who pay for solar panel maintenance at least once a year.

Solar panel systems are renowned for their reliability, but regular maintenance is essential. Homeowners who make the most of these tax incentives by investing in their solar panel maintenance can ensure that their system works for years to come.

How Do You Maintain Solar Panels?

Maintaining solar panels is an important part of ensuring their efficiency and longevity. Here are some ways to maintain and protect your solar panels:

Watch for Dirt and Debris Buildup

It is important to watch for dirt and debris buildup. This can reduce the amount of energy produced by the system. Dust and debris can accumulate on the surface of the panels.

It blocks the sunlight and reduces the efficiency of the system. To maintain home solar panels, remove any debris and dust, or use a damp cloth to clean the surface of the panels.

Additionally, inspect the panels for any damage or discoloration. All of this could state problems with the wiring or components of the system. 

Lookout for Rack and Roof Penetrations

Rack penetrations are holes and slits in the array frame. Roof penetrations are holes that allow the mounting structure and wiring to penetrate the roof. Both of these can cause water or other debris to get inside, leading to corrosion and other damage.

Thus, it is crucial to inspect these areas and repair any damage. While this may take a bit of extra time and effort, it is well worth it. This in return ensures that the solar panels are producing electricity at their peak efficiency.

Check the Panels After Severe Weather Events

It is important to always check the solar panels after any severe weather events. This includes storms, strong winds, or hail. Extreme weather conditions can damage solar panels.

It can cause them to become less efficient. To prevent this from happening, it is important to inspect the panels after any event to ensure that they are still in good condition. You should look for any signs of damage, as well as any connected wiring and mounting equipment.

If you find any damaged materials, repair them as soon as possible to prevent further damage. Additionally, if you notice any of your panels are producing less energy, it is important to investigate the cause. Regular maintenance and inspection of solar panels can ensure they remain in good condition and keep your solar energy system running.

Monitor the System

The most important aspect of monitoring a solar panel system is to identify potential problems as soon as possible. This includes monitoring inverter and solar panel performance.

Regularly check and note any reductions in performance or abnormalities. Also, ensuring all panels are oriented and checking connections between different parts of the system are both important parts of maintaining a solar panel system. 

How Long Do Solar Panels Last?

Solar panels are built to last 25-30 years. This means, if installed and cared for, a single solar panel can last over two decades, generating clean energy from the sun. While the performance of a solar panel declines each year, it can still provide up to 80% of its rated energy output after ten years and about 60% after 20 years.

Higher-quality solar panels usually have better performance over the long term. And these are able to last for closer to 30 years.

Solar panel warranties usually guarantee that the solar panel will perform at 90-92% of its rated energy output for at least 10-20 years. Maintenance of your solar panels is critical to sustaining its performance and making sure it lasts as long as possible. 

The Cost of Maintaining Solar Panels

The cost of maintaining solar panels is quite nominal compared to the cost of installing them. Initially, the cost of solar panel installation can be expensive, but the cost of maintenance is comparatively less. Yearly maintenance costs can range from $200 to $800, depending on the size of the solar installation.

The maintenance cost includes inspecting the electrical connections, wiring, and the structure of the system. As well as ensuring the modules remain clean and free of debris. Furthermore, the cost of maintenance may also include replacing any broken parts.

Or in other cases, working on any issues that might be causing the solar panel to be less efficient. In the long run, the cost of maintaining solar panels is beneficial. This ensures that panels continue to operate at their peak efficiency for the longest period.

How Often Do Solar Panels Need Maintenance?

When it comes to solar panel maintenance, there are different schedules to keep in mind.

Annual Inspection

An annual inspection of solar panels is an important part of solar energy system maintenance and should not be neglected. Panel performance and integrity should be checked at least once a year. After all, if a solar panel breaks down, any related systems you have in place will not function, costing you time and money to fix them.

During the inspection, the technician should check the condition of each solar panel and its supporting structure. They must ensure the panels are still orientated to maximize solar exposure. They need to check the wiring, connections, and inverter to ensure everything is working. 


When it comes to cleaning solar panels, it is important to plan to have them cleaned about twice per year. This will ensure optimal performance of the solar system and prevent dirt, dust, pollen or other substances from building up on the panels over time, diminishing their efficiency. During the cleaning process, it is important to use a mild detergent and a soft-bristled brush, to avoid damage to the panels.

Additionally, a pressure washer set to a low setting can be used to remove more stubborn bits of debris. Doing this will help keep the panels running at satisfactory levels and avoid having to replace the system. Cleaning solar panels takes some time, but it is worth it in the end when the system’s performance is optimal.

Additional Maintenance

If you notice a problem with your solar panels outside of your annual inspection, you can schedule a maintenance appointment as needed.

Ground-Mounted Panels vs. Rooftop Panels – Is There a Maintenance Difference?

Rooftop panels offer greater attractiveness and easier installation. But they need more maintenance due to their exposed location and susceptibility to the weather. Ground-mounted panels avoid much of this but require extra time and effort for installation, as well as needing enough available space.

In terms of maintenance yet, ground-mounted panels generally need much less. The panels are less likely to be exposed to extreme weather conditions or debris, thus needing fewer cleaning or repairs. Rooftop panels are also more likely to be stolen due to their accessibility, which can increase costs and time spent on maintenance.

Ground-mounted panels can be fastened, mitigating the risk of theft and their components are also more accessible for replacement and repairs. All in all, ground-mounted panels may be more expensive and time-consuming to install, but it offers a more secure, efficient and cost-effective option in terms of maintenance.

How to Prepare Your Solar Panels for Severe Weather Events

To prepare your solar panels for severe weather events, you will need to take a few proactive steps. First, you should check to make sure all of the appropriate sealants and caulks are properly applied. This can help protect against moisture and water getting into electrical components and causing corrosion or even a fire.

Next, verify that all of the bolts, nuts, and screws that secure the solar paneling are properly tightened. Thirdly, make sure the panels are clean and free of debris. Keep vegetation and other structures at least 8 inches away from the panels.

Check your solar panel to ensure that it is properly insulated. This will help shield the panels from extreme temperatures and prevent any damage from heavy winds. By taking these steps, you can better prepare your solar paneling for severe weather events.

Importance of Proper Solar Installation

Proper solar installation is vitally important to get the most out of your solar system. Poorly installed solar systems can cause problems including decreased efficiency and in some cases, dangerous electrical hazards. To ensure the safety and efficiency of your system, it is important to hire a qualified installer who specializes in solar projects that can properly install, wire, and maintain your solar system.

Additionally, the proper installation also helps you avoid premature component failures, and costly repairs, and reduces your financial return on investment. If you’re looking for more information, you can find more here to ensure you have an appropriately sized, expertly installed solar system.

How to Troubleshoot Solar Panel Inverters

The first step is to check the physical connections of inputs and outputs, verifying everything is tight and connected properly. If the connections are correct, check the voltage and amperage measurements at the inverter. If these readings are lower or higher than rated, this is an indication of an issue with the inverter.

Owners can then troubleshoot each component of the inverter from the battery, charge controller, electrolytic capacitor, and rectifier bridge. Check for proper connections and if any are loose, tighten them. If the proper current readings are still not present with the proper connections, it is time to replace the solar panel inverter.

Everything You Need to Know on Solar Panel Maintenance

Solar panel maintenance and cleaning should be done on a regular basis, because caring for and cleaning your panels will help you achieve optimal performance. The tips and steps outlined in this guide should give you insight into the best ways to keep your solar panels running efficiently for years to come. Start caring for your solar panels today and get the most out of your energy investment!

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