Multiconcept Methods to Enhance Photovoltaic System Efficiency

Table 3

Albedo values.

Surface	Albedo (%)
Dry soil (dark)	9
Bituminous membrane	13
Cement slabs	15
Green grass	23
Concrete	25
Concrete (milky)	46
Old snow	45-50
White tiles	71
Aluminum foil	75
White painted concrete	60-80
Expanded polystyrene	83
Fresh snow	90-92