Cleaning - technology is worthwhile especially for large roofs that require regular cleaning. Specialized companies and installers can open up a new field of business in this way. Photovoltaic systems deliver clean electricity. But to do so, they should be as clean as possible. Pollution such as dust, pollen from flowers, road traffic, industry, or agriculture

can significantly reduce the performance and thus the solar yields. That is why cleaning the systems is a matter for specialists: they clean the solar modules without damaging their surface or the roof.