Calculation example

Costs - utility bill of a 30 kWp system

30.000 KWh/Year * 0,43 € = yearly appr. € 13.800

Assumed degree of pollution appr. 5%
(slight contamination)

Insertion loss by contamination:

yearly appr. € 690.-

Assumed degree of pollution appr. 10%
(moderate contamination)

Insertion loss by contamination:

yearly appr. € 1380.-

Assumed degree of pollution appr. 15%
(heavy contamination)

Insertion loss by contamination:

yearly appr. € 2070.-