Cleaning Solar Panels: Why, When and How You Should Do It

As zero-waste and pollution-free ideas dominate the world today everybody is striving towards creating a more environmentally friendly and healthier place to live. To achieve this goal, transitioning from fossil fuels to renewable sources such as solar power is imperative. Particularly, when it comes to purchasing solar panels and utilizing solar energy, there are numerous advantages such as cost-effectiveness and unlimited availability. It has become quite a trend. However, without adequate cleaning procedures, the benefits of solar energy and its equipment cannot be fully enjoyed. Cleaning solar panels is a crucial aspect of solar energy generation. Without it, the photovoltaic (PV) system will not function efficiently, leading to a shorter lifespan of the product and ultimately reducing the availability of solar energy. Let’s delve into the article to understand why properly cleaning solar equipment is vital, when it should be done, and how.

Why is it essential to clean solar panels?

Solar panel cleaning is a process in which photovoltaic panels are cleansed. Depending on where you live, particles such as dust, pollution, grime, and sand can obstruct the panels from receiving sunlight. This can either impede the production of energy or diminish the efficiency of the panels. Additionally, if you invest in a solar panel package that includes various components, inadequate cleaning may result in reduced efficiency, leading to a failed purchase. To avoid these issues, it is important to follow appropriate solar panel cleaning methods in order to save both time and money.

When should solar panels be cleaned?

Solar panel maintenance should be carried out approximately once in a year. While yearly is the most ideal frequency, yearly checks as part of your agreement with a solar panel company like Swish Solar can help with the upkeep, depending on where you live and the weather conditions. It is preferable to clean solar panels at the conclusion of the winter season. This is due to the increase in energy production. For safety purposes, it would be advisable to clean the panels in the evening to prevent contact with hot panels. 

How is solar panel cleaning is done?

Hot water, gentle fabric, wiper, and detergent are the essentials to clean the panels. All you have to do is apply detergent and hot water with a gentle fabric to the panel and clean it with delicate movements. Afterwards, press the gentle fabric into the wiper to remove dirty water. Then, repeat the process until solar panels are clean. Simple as ABC!


It appears that solar panels, devices that produce the popular form of sustainable energy – solar power, require adequate maintenance for extended and effective operation. Although this may appear complex, all one needs to do is periodically clean the solar panels. If done at the appropriate time and using the correct methods, not only will the devices provide solar energy for a long time, but there will also be no need for professional maintenance procedures. Be considerate and maintain your solar panels to maximize their lifespan! 

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