CD Skripsi
Analisis Pengaruh Variasi Azimuth Angle Terhadap Kinerja Rooftop Pv Pada Gedung Fakultas Teknik Universitas Riau
ABSTRACT
This research analyzes the effect of azimuth angle variations on the performance of solar panels on the rooftop solar power generation system (PLTS) at the Faculty of Engineering Building, Riau University. The azimuthal angles tested were 160°, 170°, 180°, and 190° with a fixed tilt angle of 5°, using 4 x 100 Wp solar panels. Data were collected through direct measurements from 08:00 to 17:00 WIB for seven days, including parameters of solar radiation intensity, temperature, humidity, voltage, current, power, and output energy. The results showed that an azimuth angle of 180° produced optimal performance with a maximum efficiency of 16.3%, average power of 63.0 W, performance ratio (PR) of 85%, and total daily energy of 593.27 Wh. The highest solar radiation intensity was recorded around 12:00-13:00 pm, reaching 1050 W/m², with an angle of 180° most effectively capturing direct radiation. Angles of 160°, 170°, and 190° produced 549.17 Wh, 562.94 Wh, and 540.97 Wh of energy respectively with lower PR (78-81%). Weekly trend analysis and 30-day prediction using the Random Walk model showed the consistent performance of the 180° angle under fluctuating weather conditions. This study confirms the importance of 180° azimuthal orientation to maximize the efficiency of rooftop solar power plants in tropical regions such as Engineering Faculty of Riau University.
Keywords: Azimuth Angle, Solar Panel, Rooftop Solar Power Plant, Efficiency, Performance Ratio, Solar Radiation, Random Walk
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