Monitoring a photovoltaic system during the partial solar eclipse of August 2017
Electrical & Microelectronic Engineering, Rochester Institute of Technology,
2 Center of Imaging Science, Rochester Institute of Technology, USA
3 Astronomy Section, Rochester Academy of Science (ASRAS), USA
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Received in final form: 21 March 2018
Accepted: 3 April 2018
Published online: 18 May 2018
The power output of a 4.85 kW residential photovoltaic (PV) system located in Rochester, NY is monitored during the partial solar eclipse of August 21, 2017. The data is compared with the data on a day before and on the same day, a year ago. The area of exposed solar disk is measured using astrophotography every 16 s of the eclipse. Global solar irradiance is estimated using the eclipse shading, time of the day, location coordinates, atmospheric conditions and panel orientation. A sharp decline, as expected in the energy produced is observed at the time of the peak of the eclipse. The observed data of the PV energy produced is related with the model calculations taking into account solar eclipse coverage and cloudiness conditions. The paper provides a cohesive approach of irradiance calculations and obtaining anticipated PV performance.
Key words: solar eclipse / photovoltaics / residential PV / solar irradiance / astro imaging
© S.K. Kurinec et al., published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.