Photovoltaic Energy System Performance Investigation: Case Study of 5.1-kW Rooftop Grid Tie in Egypt
Publication: Journal of Energy Engineering
Volume 145, Issue 3
Abstract
This paper presents a comprehensive status investigation of a designed 5.1-kW residential-scale grid-tie photovoltaic energy system (PVES) equipped with an inverter-based status monitoring scheme. Status variations for 19 parameters are monitored every 10 min during the daylight. The data of typical sunny, average, and heavily cloudy days are analyzed to characterize the system status and behavior under various atmospheric conditions. The performance indexes, including different energy yield factors and system losses, are computed following international standards. Unlike other similar studies in literature, the impact of the installed PVES on the low-voltage electrical network is initially investigated at the inverter level, and the compatibility with the emerging requirements and codes to integrate such systems within the electric grid is examined. The average monthly capacity factor is found to be 15.55%. A comparison with other photovoltaic systems worldwide reflects initial good matching.
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Published In
Journal of Energy Engineering
Volume 145 • Issue 3 • June 2019
Copyright
©2019 American Society of Civil Engineers.
History
Received: Jul 14, 2018
Accepted: Nov 15, 2018
Published online: Apr 1, 2019
Published in print: Jun 1, 2019
Discussion open until: Sep 1, 2019
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