Journal
JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME
Volume 138, Issue 5, Pages -Publisher
ASME
DOI: 10.1115/1.4034071
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Funding
- U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]
- U.S. Department of Energy, SunShot Initiative [SNL 29096, SAND2015-10902 J]
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To address the lack of knowledge of local solar variability, we have developed and deployed a low-cost solar variability datalogger (SVD). While most currently used solar irradiance sensors are expensive pyranometers with high accuracy (relevant for annual energy estimates), low-cost sensors display similar precision (relevant for solar variability) as high-cost pyranometers, even if they are not as accurate. In this work, we present evaluation of various low-cost irradiance sensor types, describe the SVD, and present validation and comparison of the SVD collected data. The low cost and ease of use of the SVD will enable a greater understanding of local solar variability, which will reduce developer and utility uncertainty about the impact of solar photovoltaic (PV) installations and thus will encourage greater penetrations of solar energy.
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