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Economical Benefit of Cleaning of Soiling and Snow Evaluated for PV Plants at Three Locations in Europe
B. Stridh
Degradation, PV System, Soil, Snow
PV Systems
Subtopic: Large PV Power Plants and Distributed PV: System Aspects and Grid Connection
Event: 27th European Photovoltaic Solar Energy Conference and Exhibition
Session: 5AV.1.53
4027 - 4029
ISBN: 3-936338-28-0
Paper DOI: 10.4229/27thEUPVSEC2012-5AV.1.53
0,00 EUR
Document(s): paper


Partial energy loss due to soiling, especially in climates where rainfall is rare, is one of most important energy loss factors that can be influenced by the operator during the life of a PV plant. Snow cover can be seen as a special case of soiling applicable in regions with colder climate. The PV power production for Murcia in Spain, Munich in Germany and Stockholm in Sweden has been modeled by PVsyst for a 1 MW plant with fixed tilt angle and with 2-axis tracking. A break-even analysis between share of one year's energy loss due to soiling and cleaning cost was conducted for the different locations. As basis for the evaluation industrial or spot prices for electricity were used. An economical benefit of cleaning can be seen in Murcia, maybe in Munich, but probably not in Stockholm assuming a cleaning cost of €2500/MW and assuming industrial electricity price. With a spot electricity price it is probably only in Murcia a revenue benefit of cleaning can be seen. It is unlikely that there is an economical benefit to remove snow from a PV plant in Stockholm assuming a snow removal cost in the same order as for soil cleaning.