Prismatic-glass.jpg


FA info icon.svgAngle down icon.svgSource data
Type Paper
Cite as Citation reference for the source document. Rob W. Andrews, Andrew Pollard, Joshua M. Pearce, A new method to determine the effects of hydrodynamic surface coatings on the snow shedding effectiveness of solar photovoltaic modules. Solar Energy Materials and Solar Cells 113 (2013) 71–78. open access

As solar photovoltaic (PV) installations have become more common in regions that experience substantial snowfall, losses in energy production due to snow coverage have grown in concern. Several post-production surface coatings have been proposed to enhance snow shedding to reduce these snow related losses. In this paper, a novel methodology is developed to determine the effectiveness of a snow clearing from a PV module and is used to evaluate the snow shedding effectiveness of any module surface treatment. Measured PV output is compared to modeled PV output in a generalizable method that allows for the determination of the length of time a panel is covered with snowfall using electrical performance data. This model accounts for module degradation during long-term outdoor testing and other external factors effecting performance, such as persistent soiling losses. This methodology was tested on modules that had one of four hydrodyanmic surface coatings, as well as one module with a prismatic glass front in order to determine the snow clearing effectiveness of these surfaces as compared to conventional plain glass. The methodology was validated, but the surface coatings tested did not have an appreciable positive effect on snow clearance, and in some cases tended to impede the shedding of snow. The physical mechanisms responsible for the results are discussed.

See also[edit | edit source]

FA info icon.svgAngle down icon.svgPage data
License CC-BY-SA-3.0
Language English (en)
Related 0 subpages, 27 pages link here
Impact 385 page views
Created March 3, 2013 by Joshua M. Pearce
Modified August 22, 2023 by StandardWikitext bot
Cookies help us deliver our services. By using our services, you agree to our use of cookies.