From: Influence of volcanic tephra on photovoltaic (PV)-modules: an experimental study with application to the 2010 Eyjafjallajökull eruption, Iceland
Dry, before spraying
Wet
Dried out
Fine ash (204 g/m2)
15.92 V/0.01 A
17.16 V/0.02 A
16.19 V/0.01 A
Coarse ash (207 g/m2)
19.38 V/0.06 A
A 19.40 V/0.07 A
19.24 V/0.06 A
Without ash
20.4 V/0.15 A
20.4 V/0.16 A