Open AccessPerformance Evaluation of PV Plant at Al-Ahliyya Amman University in Jordan
Author(s) -
Ali Hamzeh,
Mahmoud Awwad
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/464/1/012008
Subject(s) - scada , photovoltaic system , grid , tilt (camera) , power station , yield (engineering) , electricity , engineering , electrical engineering , environmental science , automotive engineering , mathematics , mechanical engineering , materials science , geometry , metallurgy
The objective of the paper is to analyse the technical performance over 2018 of the grid-tied 1MWp solar PV plant installed on the roofs of eight buildings at the campus of Al-Ahliyya Amman University (AAU) in Jordan. The plant comprises 3869 modules of 260 Wp each, oriented due south with mixed tilt angles of 5° and10°. The structure of the plant is configured as eight PV units connected in parallel to the main distribution substation 11 kV/0.4 kV. The plant SCADA system is designed using Internet of Things and programmable logic controllers. According to the conditions of the electricity utility, the SCADA system controls the output of inverters to prevent any injection of PV power in the grid. This utility restriction is found to lead to bad evaluation indicators. According to the evaluation results, the measured specific yield (1203 kWh/kWp) is less than the estimated one without restriction (1727 kWh/kWp) by about 30%. Whereas the annual yield as computed by software PVSYST V5.71 amounts 1737362 kWh, the measured yield considering the utility limitations is 1203380 kWh. Accordingly, the capacity factor (13.7%) and the performance ratio (62.5%) are found to be significantly reduced.