Differences in Snow Shedding in Photovoltaic Systems with Framed and Frameless Modules

Document Type

Conference Proceeding

Publication Date



Department of Materials Science and Engineering; Department of Electrical and Computer Engineering


Energy losses due to snow coverage can be high in climates with large annual snowfall. These losses may be reduced with region-specific system design guidelines. One possible factor in snow retention on PV systems could be frame presence and/or shape. Sandia is studying the effect of module frame presence on photovoltaic module snow shedding for a pair of otherwise-identical PV systems in Vermont. The results of this study provide a summary of the findings after the 2018-2019 winter period. The results clearly show that the presence of a frame inhibits PV performance in mild winter conditions.

Publisher's Statement

© 2019 IEEE. Publisher’s version of record: https://doi.org/10.1109/PVSC40753.2019.8981389

Publication Title

Conference Record of the IEEE Photovoltaic Specialists Conference