Maximum performance through cleanliness
Solar system cleaning
Solar panels are a sustainable and efficient energy source – but their performance depends significantly on a clean surface. Contamination from dust, pollen, bird droppings, or other environmental influences can significantly reduce the efficiency of your photovoltaic system.
With professional solar panel cleaning from KÖTTER Cleaning, we ensure that your system continues to operate optimally.

Why is regular solar system cleaning important?
Even a small layer of dirt can impair the energy production of solar modules. Professional solar system cleaning offers you the following advantages:
- Maximizing energy yield through clean module surfaces
- Maintaining the value of your system through careful care and cleaning
- Longer service life of your solar modules by avoiding deposits
- Additional visual inspection by our staff for possible damage to the system
- Reducing fire safety risks, especially from organic residues

Environmentally friendly solar system cleaning using the osmosis process
KÖTTER Cleaning relies on the osmosis process, an environmentally friendly, chemical-free cleaning technology. This process treats and demineralizes water. After being applied to the solar surface, the fluid combines with the dirt particles, which are then gently removed without leaving any residue. An additional benefit: Surfaces cleaned with the osmosis process stay cleaner longer.
Why KÖTTER Cleaning for your solar system cleaning?
Our OQS-certified processes utilize state-of-the-art, material-friendly cleaning methods to thoroughly and safely clean your solar modules. Thanks to our sustainable cleaning methods, we avoid chemicals and use environmentally friendly techniques. Whether it's a one-time intensive cleaning or regular maintenance, our flexible service adapts to your individual requirements and ensures the long-term maximum efficiency of your solar system.