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All Journal Jurnal Teknik Mesin, Industri, Elektro dan Informatika
Stozn Romeo
Institut Teknologi PLN
Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering

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Evaluasi Kinerja Produksi PLTS Atap Berbasis Data Operasional dan Analisis Deret Waktu pada Fasilitas Pendidikan PLN Stozn Romeo; Aminullah Assagaf; Syamsir Abduh
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 5 No. 1 (2026): Jurnal Teknik Mesin, Industri, Elektro dan Informatika
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v5i1.6287

Abstract

Rooftop photovoltaic (PV) systems installed in working and educational facilities require data-based performance evaluation so that renewable energy contribution can be monitored and translated into operational actions. This study evaluates the production performance of the rooftop PV system at PLN UPDL Pandaan using operational data from 2024 to 2025. The method combines descriptive statistics, total yield, specific yield, year-on-year comparison, coefficient of variation, seasonal index, time series reading, and an initial battery energy storage system (BESS) scenario. The results show that annual total yield decreased from 11,332.73 kWh in 2024 to 10,520.48 kWh in 2025, equivalent to a 7.17% reduction. Specific yield also decreased from 1,365.39 kWh/kWp to 1,267.53 kWh/kWp, while the monthly coefficient of variation increased from 15.11% to 18.08%. Seasonal analysis indicates relatively high production in August and October, whereas January, February, November, and December tend to remain below the historical average. The BESS scenario shows that a 10 kWh nominal capacity can increase estimated PV utilization from 57.52% to 76.55% under the representative load profile. The findings support baseline-based operation and maintenance, monthly residual monitoring, and further continuous load measurement before implementation.
Co-Authors Aminullah Assagaf Syamsir Abduh