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Solar or PV panels will need cleaning at some point. Its common sense that the cleaner the surface the more efficent the panel will perform.
Regarding frequency of cleans required will depend on the location. Some areas suffer from more airbourne dirt than others. I think you’ll know when it requires a clean. Normally this would be every 6 months to 1 year. Rain water will leave deposits on the panel along with airbourne dirt and these bake fast onto the surface

Solar Panel Cleaning

Solar panel cleaning is extremely important to achieve maximum output of a solar electric system.The financial impact of a clean solar panel is immediate. More electricity produced by the solar panels means less pounds billed by the utility company and a direct savings to the owner. During this time of year, when solar systems generate the most power cleaning maintenance is especially important. Available both residential and commercial customers alike.

Since the life expectancy of solar panels is 30 years, regular cleaning is imperative, especially if they are exposed to dusty conditions or close to the sea where salt crystals can accumulate. Additionally the panels may be target to bird droppings which will severely reduce the generating capacity of your solar panels.

We use environmentally friendly pure water reach and wash cleaning system, which ensures great cleaning results to help your solar panels run more efficientaly.

For a free no obligation quotation go to our contacts page and email us or call us today on the numbers below.

Why do I need my Solar panels cleaned?

Solar panels need cleaning either on an annual basis or more frequently, due to dirt in the atmosphere. This dirt adds a film of grime on the outside of the solar panels dramatically reducing their performance. The grime does this by preventing your solar panels from receiving the maximum amount of sunlight that the panel can take in, this then makes your solar panels less efficient and it is this inefficiency then has an effect on their performance and the amount of profit they return to you as a result in the year.

So how much money will I lose if I do not have my Solar panels cleaned at least once annually?

Cleaning the solar panels can be very cost effective as a dirty solar panel can lose 25% of its efficiency over a year. Cleaning these panels can cost from as little as £30 at least once a year, depending on their size and location. This £30 yearly investment can see a return of up to £1500 from your energy supplier every year proving how cost effective it can be just to keep your solar panels clean.

Live out side of Birmingham but still want your solar panels cleaned professionally?

Not a problem. When contacting us please simply state where you live and we will give you a quote that will cover our petrol and our standard rate for our Birmingham solar panel cleaning clients.

How will my solar panels be cleaned?

We have invested heavily in the latest cleaning technology which is ideal for cleaning solar panels. This cleaning technology uses a pure warm water system and with a reach of 70 ft with our poles we have a perfect cleaning system for solar panels. The pure warm water has had all the fluoride, calcium, chlorine and minerals filtered away, so it cannot leave any cleaning residue on the panels which canthen cause more atmospheric material to stick faster to the panels after a clean from a cleaning company that uses chemicals. The warm water will also clean any green algae away to return the solar panel to its original performance.

Our cleaning company has invested heavily in the latest cleaning technology to hit the market, a ladderless cleaning system which is ideal for cleaning your solar panels. This not only gives you exceptional better cleaning, due to the fact that our ladder less system uses only 100% pure de-ionised water but no environmentally unfriendly chemicals are used on your solar panels, which means if you need to worry about any EU legislation over chemicals being released into the environment that you do not need to.

Another benefit to you is because we use the latest cleaning technology, which does not require ladders, you do not have to worry about the 2005 Working at Height legislation.
This legislation unfortunately means that as the owner or occupier of a building you are responsible for ensuring that any work undertaken at your premises conforms to Health and Safety regulations. If you do not and a cleaner falls from a height while cleaning your solar panels you are unfortunately liable.

However as we do not use ladders this is therefore not possible with us, meaning that you have more time for your company and personal time and less worry about injuries that could happen due to the solar panels location.

When you first had solar panels installed you probably did not even consider the need to keep them clean. Most panels have a glass surface just like windows and so get dirty just like windows. In fact due to the position of the panels facing upwards they are more prone to bird dropping deposits and other debris settling on the surface.

Why do solar panels need cleaning?

Unlike windows the panels on your roof need to have a clean and clear surface to ensure they are working at their maximum efficiency. If they are not at their optimum performance it means they are not producing the amount of electricity that they could be.

The above image shows solar panels with bird droppings that do not wash off easily with just rain. This will affect the panels performance. To reduce the problem of bird droppings you can put a plastic mesh over your TV aerial to stop birds using it as a perch and messing on the panels below.

On the roof and angled skywards the panels will attract dirt, dust, soot, pollen, tree sap and salt crystals in costal regions creating a fine layer of grime. This layer reduces the amount of light reaching the silicon cells under the glass surface and reduces the panel’s effectiveness. A solar panel that has never been cleaned could be producing almost a third less power than it otherwise could be. Some have reported a ten to fifteen percent loss of solar output due to dirty panels. Boston University in the States have done some research on this and claim that as little as a few grams of dust per square metre can halve their efficiency.

From the ground the panels may appear to be clean, just like your windows. Up close however you can see the grime that has built up from the dirt and pollution in the air. A more noticeable deposit that can be left on panels is bird droppings. These tend to completely block the light from areas of the photovoltaic panel and can considerable reduce its effectiveness.

How to Clean Solar Panels

Some people may try to clean them themselves although this is not recommended. Firstly it can be dangerous trying to reach your roof without the proper equipment. Secondly you may end up damaging the panels either accidentally or by attempting to clean them yourself.

It is recommended that you hire a cleaning company that provides a solar panel cleaning service that know how to clean solar photovoltaic panels properly. Do not just hire a window cleaner unless they have specific knowledge and experience in this area. They may end up at worst damaging the panels or not effectively cleaning the panels so you end up no better off.

Hire a company that has the proper solar panel cleaning equipment

A company who is experienced in cleaning PV panels will have the proper equipment. Using standard windows cleaning tools means that they will end up leaving soap residue behind and hard water spots as any water on the panels surface evaporates.

A professional cleaner will use a water fed pole system that can reach the panels on your roof from the ground. They will use a pure water system that uses de-ionised water and a soft head brush attachment so as not to damage the panels. No chemical should be used as these can cause damage.

How often should I clean my solar panels?

In the UK this is something that we do not have much experience or knowledge with. Luckily solar panel cleaning services in other countries have been established for many years and many recommend getting them cleaned twice a year. Some suggest you get them cleaned every couple of months.

For the best results the first clean should be at the start of spring as the days lengthen and the amount of sun reaching the panels increases. Later in the summer they should be cleaned again. For the UK climate this seems to be the best solution.

If you have free solar panels installed or are thinking of getting them you should check with the installer to see if they pay for getting the panels cleaned. It is in their interest to keep them running at optimal efficiency.

Won’t the rain wash the dirt off the panels?

During the summer there may be long periods where it does not rain and the summer is when photovoltaics produce the most electricity. When it does rain some of the loose dirt is removed but more is deposited in its place. Some types of soiling such as that from birds will remain for many weeks and even months if they are not cleaned.

Does cleaning a solar panel really improve its efficiency?

The best way to prove this is to record the amount of power being generated before the panels are cleaned. Get the panels cleaned and then compare the new reading with the ones that you took earlier. It is best to do this on a sunny day where the weather is pretty constant as the sun disappearing behind the clouds intermittently is going to affect the results.

Is there a way to prevent my solar panels from getting as dirty?

At the moment for residential installations the most practical and proven method is to just get them cleaned regularly. There are special coatings that can be applied to the surface of the panels which claim to prevent dirt from sticking. If you are going to go down that root you need to make sure you check with the panel manufacturer first.

There are other systems that are not really practical for residential systems such as spray systems built into the roof that regularly hose down the panel. There are even solar panel cleaning robots that can clean them. There is also a system that uses an electric charge to lift the dust of the surface of panels.

Why do I need to clean my solar panels?

Your purchase of solar panels represents a significant investment. Allowing solar panels to become dirty due to airborne particles, bird droppings, and tree leaves can greatly diminish your solar power output. In other words, you are not getting the production you paid to get. If solar panels are never cleaned you not only lose a significant amount of power, you also risk losing the panels.

How much electricity do dirty solar panels lose?
While many factors impact solar power production in solar panels, experts agree that you will lose power. That loss may range as high as 25% in some areas according to the National Renewable Energy laboratory. Individual dealers have reported losses as high as 30% for some customers who failed to ever clean their panels.

As you can see by the picture it is suprising how dirty they can get. And because they are usually in an unaccessible location it is hard to tell if they are clean.

Won’t the rain wash the dirt off the panels?

During the summer there may be long periods where it does not rain and the summer is when photovoltaics produce the most electricity. When it does rain some of the loose dirt is removed but more is deposited in its place. Some types of soiling such as that from birds will remain for many weeks and even months if they are not cleaned.

[IMAGE]
Before the Clean and afterwards


How often should I clean my solar panels?

In the UK this is something that we do not have much experience or knowledge with. Luckily solar panel cleaning services in other countries have been established for many years and many recommend getting them cleaned twice a year. Some suggest you get them cleaned every couple of months.

For the best results the first clean should be at the start of spring as the days lengthen and the amount of sun reaching the panels increases. Later in the summer they should be cleaned again. For the UK climate this seems to be the best solution.

By all means give me a call for a no obligation quotation on your household, commercial premises and solar farms 01769 540361