It is a well-known fact that photovoltaic modules produce their best yield under optimal conditions, and since the self-cleaning effect does not always work perfectly in practice, contamination should be regularly removed by professional photovoltaic cleaning.
HOW DOES SOILING OCCUR ON PHOTOVOLTAIC SYSTEMS?
Soiling on photovoltaic systems is caused by soot, pollen, and dirt particles contained in the air. Bird droppings can be particularly dangerous and can even lead to etching of the module surface.
It is often said that soiling is removed by the so-called self-cleaning effect caused by rain or snow, but this effect does not work optimally if the angle of inclination is too flat. Irrespective of this, soiling occurs at the edges of every photovoltaic system. Even moss or lichen can grow here too.
WHAT EFFECT DOES SOILING HAVE ON PHOTOVOLTAIC MODULES?
In principle, soiling on photovoltaic modules has the same effect as shading: They reduce the yield of your system. Depending on the degree of soiling, this reduction in yield can amount to 10 to 20 percent. In addition, soiling at the edges of the PV system leads to an increased need for repair and maintenance.
HOW TO CARRY OUT PROFESSIONAL PHOTOVOLTAIC CLEANING?
Particularly with larger roof areas and stubborn soiling, the cleaning of the photovoltaic system should be carried out by a specialist company. Specialists have the know-how, and also the right equipment to ensure sustainable and value-enhancing photovoltaic cleaning.
Photovoltaic cleaning is carried out with demineralised (decalcified) water and a special glass brush to avoid damaging the surface.
This means that cleaning agents can be dispensed completely or, in the case of extreme contamination, only a mild ecological cleaner is required.
HOW OFTEN SHOULD PHOTOVOLTAIC CLEANING TAKE PLACE?
The frequency of cleaning depends greatly on the location and climatic conditions:
- In rural regions, annual cleaning is sufficient.
- Systems in industrial areas and regions with heavy air pollution require more frequent cleaning.
- Ventilation systems in the vicinity of photovoltaic modules lead to greater pollution and also require more regular cleaning.
KONTAKT
FCC Austria Abfall Service AG 8055 Graz-Puntigam, Auer-Welsbach-Gasse 25 Tel.: 0316 / 29 27 91 Fax: 0316 / 29 27 91 - 3130 | 8224 Kaindorf, Obertiefenbach 116 Tel.: 03334 / 22 89 Fax: 03334 / 22 89 - 3304 E-Mail: fm@fcc-group.at |
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