AFIN, Anugrah Pratama and Purwanto, Purwanto and Utama, Nuki Agya (2025) STUDI EVALUASI PEMANFAATAN PLTS ATAP SISTEM OFF GRID KAPASITAS 44,88 kWp DI ASH YARD PLTU MT SUMSEL-8. Masters thesis, UNIVERSITAS DIPONEGORO.

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Abstract

Indonesia saat ini menghadapi berbagai tantangan dalam memenuhi kebutuhan energi nasionalnya. Sekitar 60% dari pembangkitan listrik nasional bergantung pada batu bara, menekankan perlunya mengurangi ketergantungan ini untuk mencapai keseimbangan energi, memperkuat ketahanan energi, dan mendorong pengembangan sumber energi terbarukan yang berkelanjutan. Studi ini menilai kelayakan investasi dalam sistem atap surya off grid, dengan mempertimbangkan kinerja teknis, implikasi lingkungan, dan faktor ekonomi, termasuk biaya instalasi dan potensi penghematan energi. Temuan menunjukkan bahwa desain dan implementasi sistem tenaga surya atap off grid beroperasi secara efektif, mencapai rasio kinerja (PR) sebesar 83,22%, yang melebihi patokan yang diharapkan sebesar 70%. Selain itu, sistem ini mampu menghasilkan keluaran listrik tahunan rata-rata sebesar 5.572 kWh. Sistem tenaga surya atap off grid ini secara signifikan berkontribusi terhadap pengurangan emisi karbon di lokasi penelitian, mengurangi 50.531 ton CO2e dalam setahun, sejalan dengan tujuan lingkungan dari studi ini. Sistem tenaga surya atap off grid di Kantor Ash Yard merupakan investasi yang layak dan menguntungkan secara ekonomi, difasilitasi oleh koneksi kabel listrik ke pembangkit listrik tenaga batu bara Sumsel-8 dan pemanfaatan listrik tegangan menengah 20kV dari PLN. Periode Pengembalian Investasi selama 19 tahun, investasi ini tetap dapat diimplementasikan, karena periode pengembalian investasi lebih pendek daripada umur proyek yang diestimasi.
Kata Kunci: Energi, Terbarukan, Keberlanjutan, Investasi

Indonesia is currently confronted with numerous challenges in fulfilling its national energy requirements. Approximately 60% of the nation's electricity generation is reliant on coal, underscoring the necessity to diminish this reliance in order to achieve energy equilibrium, bolster energy resilience, and foster the development of sustainable renewable energy sources. This study assesses the viability of investing in off grid solar rooftop systems, taking into account technical performance, environmental implications, and economic factors, including installation expenses and potential energy savings. The findings indicate that the design and implementation of the off grid rooftop solar power system operate effectively, achieving a performance ratio (PR) of 83.22%, which surpasses the anticipated benchmark of 70%. Furthermore, the system is capable of generating an average annual electricity output of 5,572 kWh. This off grid rooftop solar power system significantly contributes to the reduction of carbon emissions at the research site, mitigating 50,531 tons of CO2e within a year, aligning with the environmental objectives of the study. The off grid rooftop solar power system at the Ash Yard Office represents a viable and economically advantageous investment, facilitated by the power cable connection to the Sumsel-8 coal-fired power plant and the utilization of 20kV medium voltage electricity from PLN. With a Payback Period of 19 years, this investment remains justifiable, as the Payback Period is shorter than the expected lifespan of the project.
Keywords: Keywords: Energy, Renewable, Sustainability, Investment

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