The latest news, the best promos. 

Most Common Issues With Residential Solar Panels

Most Common Issues With Residential Solar Panels

October 26, 2023
residential solar panels

Main Issues with Residential Solar Panels

In recent years, residential solar panels have gained significant popularity due to their ability to harness the power of the sun and reduce energy bills. Solar panels provide a clean and sustainable source of energy, making them a wise choice for environmentally-conscious homeowners. However, like any technology, solar panel systems are not immune to issues that can affect their efficiency and performance. In this blog post, we will explore the most common issues with residential solar panels, offering insights and solutions to ensure your solar investment remains fruitful.

Solar Panel Issues: Dust and Dirt Accumulation

One of the most prevalent issues with solar panels is the accumulation of dust and dirt on their surfaces. Dust and dirt can significantly reduce the efficiency of your solar panels by blocking sunlight and hindering the absorption of energy. Regular cleaning is essential to maintain the performance of your system.

Solution: Periodically clean your solar panels with a soft brush or sponge and water to ensure optimal energy production.

Shading Issues

Solar panels are most effective when they receive direct sunlight. Shading issues, such as nearby trees, tall buildings, or even a small obstruction, can cast shadows over the panels and reduce their output.

Solution: Trim or remove shading objects if possible or consider installing micro-inverters that can mitigate shading effects on individual panels.

Solar Panel Issues: Microcracks

Microcracks are tiny cracks that can develop in solar panels over time due to temperature fluctuations and mechanical stress. These cracks may not be visible to the naked eye, but they can lead to a reduction in the panel’s performance.

Solution: Regularly inspect your solar panels for microcracks and, if detected, contact a professional for repairs.

Inverter Failures

The inverter is a crucial component of any solar panel system, as it converts the direct current (DC) produced by the panels into usable alternating current (AC) for your home. Inverter failures can disrupt the entire system’s operation.

Solution: Ensure your inverter is of high quality, and consider investing in a backup inverter to minimize downtime in case of a failure.

Wiring and Connection Issues

Issues with wiring and connections are among the most common problems in solar panel systems. Loose or damaged wires can cause power loss or even electrical hazards.

Solution: Regularly inspect the wiring and connections in your system, and seek professional assistance for any issues.

Solar Panel Issues: Hot Spots

Hot spots are localized areas on solar panels where heat is generated due to defects or shading. These hot spots can lead to long-term damage and reduced efficiency.

Solution: Regular inspections and preventive maintenance can help identify hot spots early, allowing for timely repairs.

Pests Damage

Pest can sometimes nest under solar panels, leading to various issues such as damaged wiring, droppings, and debris buildup, affecting the system’s performance.

Solution: Install critter guards, such as mesh or spikes, to prevent birds from nesting under your solar panels.

Weather-Related Damage

Extreme weather conditions, such as hail, heavy snow, or high winds, can cause physical damage to solar panels, reducing their efficiency.

Solution: Depending on your location, consider investing in hail-resistant panels or install protective measures like solar panel covers during severe weather events.

Age-Related Degradation

Over time, solar panels naturally degrade and become less efficient. This is a common issue with all solar panel systems and can result in reduced energy production.

Solution: To combat age-related degradation, consider upgrading to more efficient panels or expanding your system as needed.

Monitoring System Failures

Having a monitoring system for your solar panels is essential to track performance. Failures in the monitoring system can leave you unaware of potential issues.

Solution: Regularly check your monitoring system to ensure it’s working correctly and providing you with real-time data on your solar panel performance.


Solar panel issues can be challenging to deal with, but they are not insurmountable. By understanding the most common problems and implementing proactive solutions, you can ensure your residential solar panel system remains a reliable source of clean energy. Regular maintenance, inspections, and timely repairs are key to maximizing the benefits of solar panels. Remember, addressing solar panel issues promptly can lead to increased energy efficiency and long-term savings.

Find Us