Are Solar Panels Self Cleaning?

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Solar panels self cleaning with rain

Are Solar Panels Self Cleaning?

‘Self-cleaning’ is a term regularly thrown around the solar industry, but what is actually meant by it? Do you really never need to clean your solar panels? 

We are very lucky here in the UK (yes lucky) that we get regular rainfall that helps wash off any debris and dirt that accumulates on your solar panels. Despite this, in order to keep your solar panels producing at maximum capacity, sunlight depending, some extra cleaning is recommended. 

This is very simple and can be done in a similar way to the cleaning of windows. No abrasive chemicals or tools should be used as you don’t want to risk damaging the surface. High water pressure or jet washers are also not recommended. You can do this by using a telescopic pole and window cleaner. In terms of frequency, cleaning your solar panels every 12-18 months should suffice.

If you want extra reassurance, there are professional cleaning services you can use, although it will be a pricier option. 

So overall solar panels ‘self cleaning’ is more of a marketing ploy that arose from the idea of using a hydrophobic coating to encourage water to slide off the panels. This is effective to a certain extent, however it does wear off after time and cleaning is still recommended. 

As a company we strongly believe in providing you with the most relevant and honest information regarding our products. We want you to appreciate the value of the system, so our designers work hard to recommend what you need for your home. 

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