Suomessa on tutkittu asiaa ja todettu näin. Lasinpesuaine toimii ok. Tuolta voi käydä lukemassa lisää.
www.pv-magazine.com
Beware of cleaning photovoltaic panels with dishwashing detergent - pv magazine Global
Researchers in Finland found that dishwashing liquid reduces solar module transmittance and performance, leaving residues even after rinsing. They recommend avoiding its use for cleaning solar panels.