Why should Solar Panels be cleaned regularly?
- Alastair Keeble
- Jun 10
- 2 min read
It's increasingly becoming apparent that regular cleaning of solar panels is essential for the performance of your system; therefore, periodic cleaning is crucial is you want maximum results.

IMPROVE EFFICIENCY
There is no doubt that cleaning solar panels contributes to their effectiveness. According to a study by the National Renewable Energy Laboratory (NREL), the efficiency and performance improvement can be up to 35% in high dust areas, and by up t0 25% in high bird activity areas. So, regular cleaning really can make a huge difference!
WARRANTY
Many solar panel installation companies as well as manufacturers have specified regular cleaning as a warranty condition. You may not be covered by the warranty if there is no proof of regular cleaning. That’s why regular cleaning is recommended if you want to be on the safe side in case there is a malfunction at some point.
RAINWATER DOESN'T COUNT
Many people believe that they don't need to clean their solar panels, as the rain will do that for them, but this is not the case. To ensure that your solar panels are working effectively and productively, they need to be properly cleaned.
INCREASE DURABILITY
Sand, dust particles and debris can be found in all environments. These build up over time and can lead to wear and tear. Whilst this build up may not be noticeable at first, it can cause damage over time, therefore the regular maintenance is essential.
AESTHETIC APPEAL
Your solar panels are an important part of your home, or work environment. Therefore, you want them to look good. Regular cleaning will contribute to this, and it will make your home, or workplace, more aesthetically appealing to yourself and visitors.
INSPECTION
The cleaning of your solar panels also gives a chance for them to be inspected for any damage or defects. These can then be dealt with in a timely manner, before the damage becomes more serious.
IMPROVE ROI TIME
Solar panels are not cheap, they are an investment that you expect a return upon. Not keeping on top of the cleaning of the solar plans will decrease the return on your investment, particularly as time goes on.
In conclusion, cleaning your solar panels is essential and in most cases it is affordable. The benefits, specifically the monetary ones, far outweigh the costs.
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