Performance Evaluation of an On-Grid Solar Photovoltaic System Installed on an Educational Building: A Case Study of Nongbualamphu Technical College
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Abstract
This study aims to design, install, and evaluate the performance of an on-grid solar photovoltaic (PV) system for a four-story educational building at Nongbualamphu Technical College. A 20-kilowatt system was designed and installed, comprising forty 550-watt solar panels connected in series. The system is expected to operate an average of 6 hours per day under sufficient sunlight. Results show that the system can generate approximately 10.04 MWh during the experiment period, accounting for 47.06% of the building’s total energy consumption, while the remaining 52.94 % (11.30 MWh) continues to be supplied by the grid. Additionally, around 449.73 kWh per day (4.31%) of excess energy is fed back into the grid.
The performance analysis indicates a high efficiency in energy utilization, with 95.69% of the solar energy being directly consumed within the system. This significantly reduces electricity costs, lowers dependency on fossil fuels, and promotes the use of clean energy. The findings suggest that this solar PV system can serve as a model for implementing similar systems in educational institutions or public facilities to enhance local energy sustainability and promote environmentally friendly practices.
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
สงวนสิทธิ์ โดย สถาบันการอาชีวศึกษาภาคตะวันออกเฉียงเหนือ 1
306 หมู่ 5 ถนนมิตรภาพ หนองคาย-อุดรธานี ตำบลโพธิ์ชัย อำเภอเมืองหนองคาย จังหวัดหนองคาย 43000
โทร 0-4241-1445,0-4241-1447
ISSN : 3027-6861 (print) ISSN : 3027-687X (online)
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