Solar panels need periodic cleaning and maintenance to keep them looking like new. You can use a non-abrasive detergent, water, or vinegar to clean them. Using something other than abrasive cleaning pads is best because they can scratch the glass. You should also check your panels for dust, soot, and ash build up every month.


Solar panels need regular cleaning. This can be done by yourself, or it can be performed by a professional. Many solar companies offer this service as part of their annual maintenance. These services are typically recommended by the company that installed the product. Still, you need to be aware that solar companies often charge exorbitant rates and only offer a little return on your investment. The cost of cleaning solar panels varies greatly depending on the number of panels and the size of your roof.

If you have many panels or live in an area with meager sunlight, you may find it more cost-effective to hire a solar panel cleaner instead of doing the work yourself. Cleaning solar panels will reduce the energy they produce by about 5%. However, they will restore their energy output once it rains.

Cleaning solar panels is not hard and can be performed as frequently as two to four times a year. Rainfall will naturally wash away loose dirt and debris, while regular cleaning removes the dirt and dust layer. In a study conducted by Google, solar panels cleaned by professional technicians were found to have 12% higher efficiency than those left to dry by the rain. It is advisable to clean solar panels at least twice a year.

Signs That Your Solar Panels Need Maintenance

You should check your solar panels regularly to ensure they are still working correctly. You should contact a professional solar panel service if there’s a sudden drop in productivity. Although solar panels don’t require much maintenance, they can still become damaged by weather conditions or arc faults.

Regular cleaning is essential for solar panel maintenance to keep your solar panels looking clean and clear. Clean them with a mild detergent and clean water, and make sure to use a soft brush. Ensure you don’t use abrasive cleaning products, as they could scratch the glass. You should also check your panels every month for the buildup of dust, soot, and ash.

Keeping your solar panels clean is an essential part of maintaining their efficiency. Depending on your current weather conditions, cleaning your panels may need to be performed twice a year. However, if you live in an area with little rainfall, you may only need one cleaning a year. However, if your solar panels are collecting too much debris, they may need to be cleaned more frequently.

Another sign that your solar panels need maintenance as an effective energy solution is a sudden rise in the energy bill. This may mean that you have obstructed sunlight on your panels. You can monitor the energy output of your solar panels to determine whether they are obstructed by snow or other debris. They may need to be cleaned or replaced if they are blocked by snow.

Safety Precautions

Keep some safety precautions in mind when cleaning your solar panels. These include not trying to clean them with electricity running through them and never using a high-pressure jet washer or other vital cleaning fluids. Also, make sure you use water that has been filtered. Untreated water will leave a calcium film on the panel that can cause permanent damage.

It’s essential to clean your panels on a fantastic day. If you clean them on a hot day, you may burn yourself. And if you use hot water, it could leave a residue on the glass and reduce photovoltaic output. Always use a soft cloth when cleaning your solar panels, as rough brushes and sponges can scratch the glass and reduce its efficiency. Dish soap mixed with warm water will be effective for most panels. For stubborn or oily spots, use rubbing alcohol diluted in water. Be sure to rinse well to avoid leaving streaks.

The first safety precaution is to avoid spraying high-pressure water on your panels. High-pressure water may cause the panels to break. Always avoid using high-pressure hoses. You can use a soft brush instead. You can also use a sponge or soft cloth to remove stubborn stains. Once you’ve cleaned your panels, monitor the output to ensure they work optimally.