Cleaning Your Solar Panels: 3 Factors to Consider

Throughout the day, solar panels are typically exposed to the impacts of the weather. However, adverse effects are not limited to those brought on by the wind, snow, sun, or rain.

Additionally, dirt, trash, bird droppings, dust, falling leaves, or needles from adjacent trees might harm the panels. As a result, these elements might make your solar panel less effective. Regular cleaning can reduce the occurrence of stains and enhance the efficiency of your system. However, there are 3 factors you should take into account before cleaning:


Solar blockers including leaves, dust, and water are frequent. Beyond the accumulation of filth over time, these often cause issues. However, your precise location also has a significant impact on how much this can impact your system and what causes it.

A small amount of dust or debris might not have an impact because light can still get through. They advise letting nature take its course because rain will handle the majority of the chore of cleaning solar panels. However, some solar companies found that the amount of efficiency lowers per minute. Some areas are also dustier than others.

Leaves, on the other hand, are sunlight blockers. Numerous trees, especially deciduous ones, in the area will not only drop leaves on your roof but also draw birds. Both factors result in accumulation and debris over time, making regular solar panel cleaning efforts or services even more crucial.

The array’s angle is also one item to think about. Flat panels will require more maintenance since the water might accumulate and, when it evaporates, create a muddy residue. Angled ones benefit from raindrops passing over them by staying clean.

The presence of these bloggers is the reason why you need solar panel cleaning.


Whether it’s DIY or you plan to call a professional, when to initiate solar panel cleaning is an important factor to consider.

Time – You may want to take advantage of a cloudy day when cleaning the solar panel. If you do this on a sunny day, any water you use may evaporate, which could cause the dirt to smear. Therefore, cleaning in the morning might be a great idea because the dew that may have accumulated over the previous night will have softened the filth, requiring less water and energy to clean.

Weather – Most of the time, solar panels are cleaned by rain or snowfall. Without a doubt, a downpour of severe rain can wash away any surface filth, such as dust or fallen leaves. As the sand and light soils fall down, the snow from the solar panels may force them along with them. However, when it comes to the crusted stains, such as the hard bird dropping and the soils along the border of the solar panel frame, this is not always the case.


How can solar panels be cleaned most effectively? DIY enthusiasts should already have the necessary supplies at home. It is advisable to use only water and a non-abrasive sponge to apply soapy water because you don’t want to scratch your system in any manner. If you think you need a little extra assistance, use a light detergent.

We also advise against using a pressure washer to clean solar panels; instead, stick to using a regular hose. Using anything under high pressure could result in damage. If the birds have left a mess, use a sponge and nothing more powerful than dishwashing soap. Strong chemicals should not leave markings on the panels.

The rain will remove the majority of the dust, making hiring professional cleaners unnecessary. Break out the garden hose and clean the panels down while keeping your feet on the ground if you are in an area that is highly polluted or if there may be some extra dirt or distracting objects up there. Gently clean the area by sponging some washing-up liquid on a sponge. In the end, you can decide to leave the cleaning to the professionals.

You may visit the pros on this website to perform spot checks to determine how much maintenance is required after residential solar panel installation pewaukee wi, including solar inverter repair, if necessary.