Technical data for cleaning a 1.6 m2 PV panel

 

Heavy soiling: cleaning with water brush

Activity Time / sec
Water volume / l Solodon volume/g
Wetting61,5
Foaming61,55
Cleaning6012
Rinsing154
Total87 = 1,5 min195

Recommended water flow: minimum 15 l/min

Light soiling: cleaning with the mop

Activity Time / sec
Water volume / l Solodon volume/g
Wetting61,5
Foaming61,55
Cleaning25
Rinsing154
Total52 = 1 min75

Calculation example per hour of cleaning work

Light soiling:

Volume              Total valueValue / Module
Water consumption400-500 ltr.1,00 €1,7 Cent
Solodon consumption (pink nozzle):350g7,00 €10 Cent
Wages35,00 €58 Cent
Cleaned modules60
Total 70 Cent

 

Heavy soiling:

Volume          Total valueValue / Module
Water consumption700-800 ltr.1,50 €3,8 Cent
Solodon consumption (pink nozzle):350g7,00 €17 Cent
Wages35,00 €88 Cent
Cleaned modules40
Total 109 Cent

 

Determing the water volume

Check the time you need to fill a 10 litre bucket with water from your hose.
Important: perform this test where you want to clean later. On the roof, water usually flows much slower from the hose than at ground level.

Water volume in l / min:

60 x  measured time for 10 l in seconds
______________________________

10 l

We recommend a minimum flow volume of 15 l water / min.