Provided herein are light weight solar cell modules having an ionomeric encapsulant sheet and at least one glass sheet. In particular, the weight of the solar cell modules is reduced by reducing the thickness of the at least one glass sheet to about 2.0 mm or less, or to about 1.5 mm or less. The light weight modules retain favorable performance properties such as good pummel adhesion levels, good moisture resistance, and low stress. Further provided are lightweight solar cell modules equipped with integral mounting devices.
