Instrumentation for Evaluating PV System Performance Losses From Snow

Instrumentation for Evaluating PV System Performance Losses From Snow


Website or Online Data - 2009
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When designing a photovoltaic (PV) system for northern climates, the prospective installation should be evaluated with respect to the potentially detrimental effects of snow preventing solar radiation from reaching the PV cells. The extent to which snow impacts performance is difficult to determine because snow events also increase the uncertainty of the solar radiation measurement, and the presence of snow needs to be distinguished from other events that can affect performance. This paper describes two instruments useful for evaluating PV system performance losses from the presence of snow: (1) a pyranometer with a heater to prevent buildup of ice and snow, and (2) a digital camera for remote retrieval of images to determine the presence of snow on the PV array.
Publisher: Golden, Colo. : National Renewable Energy Laboratory, [2009]
Characteristics: 1 online resource ([9] p.) : col. ill.


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