For the maintenance of your solar panels, we use a system with rotating brushes, fed with pure water

(click on the video for a demo)

Tap water contains lime (chalk), which is detrimental to the maintenance of your solar panels and your windows. When the windows or tiles dry, the limescale remains. Pure water is water from which all substances, harmful to the solar panels, have been removed and does not leave any traces when it has dried. In this way we guarantee an optimal result of the maintenance.
To limit the time and cost of maintenance and guarantee your return, it is recommended to clean your solar panels annually to remove moss, bird droppings, plant remains, pollution, etc. Have a look at your windows in the roof, to see that there is more than just dust in the air and the same you don’t want for your investment…

 

Photovoltaic systems are exposed daily to harmful or polluting substances, which - even after a short time - reduce the efficiency of a solar installation. Only regular maintenance of the installation can solve this problem.

With the QLEEN SOLAR range, Lehmann KG offers professional solutions for the maintenance of photovoltaic panels for both private and commercial purposes. The QLEEN SOLAR system what we use at STEFCLEANING is mobile and versatile and can easily be adapted to different circumstances. High-quality components, coupled with durable and reliable resources, guarantee thorough and cost-effective maintenance of both small and large installations at all times.

QLEEN SOLAR works with demineralized water (“pure” water), which is gentle on nature and on your solar panels! Since its development, Lehmann has ensured that the products use a minimum of water and energy for maximum results. In practice, the QLEEN SOLAR system uses less than 160 liters of water per hour.

Frequently asked questions

 

Can maintenance be done from the ground?

Indeed, in many cases, maintenance can be done from the ground. After all, the system allows maintenance up to 17 meters high, which promotes the safety of the maintenance team. It is of course possible that solar panels are placed in such a way that they are difficult to access, so that a scaffolding, ladder or lift is still necessary. A site visit gives advice!


 

Do you also work for private customers?

We offer our services to both private customers and organizations (companies, schools, etc.).

Are the brushes adapted to my material?

The brushes have different colors according to the type of maintenance required and according to the supplier's recommendations.

White brushes are used for window cleaning, blue brushes for facades and red brushes for solar panels.

 

Do you use a chemical process for the maintenance of solar panels?

To avoid risk of damage, it is not recommended to maintain solar panels using a chemical process. Solar panels are best cleaned annually with clean water.

For facades, chemicals are used to remove stubborn air pollution and unfiltered water is sufficient.

What is “clean” water?

The PURAQLEEN system has a water reservoir with a very fine filter, composed of minuscule resin components, which removes harmful substances from tap water and purifies the water 100% by means of an ionic process. This demineralizes the water and dissolves the dirt.

In case of regular maintenance of the solar panels, pure water (combined with the brushes) guarantees an optimal result without the addition of additional (chemical) maintenance products.

Is maintenance in the sun a good idea?

By using 100% pure water, we guarantee a streak-free result, even with direct exposure to the sun. Maintenance can therefore be carried out in the sun without any problems.

Ask us for a quote

  • Send us your demand by following the link. Detail as much as you can and we’ll get back in no time to send you a quote.

 
 
 
 
Passion is our strength. 
Satisfaction is our mission.