Maskur, M. Hajam (2026) Analisis Operasional dan Tekno-Ekonomi Sistem PLTS dan Battery Energy Storage System (BESS) On-Grid pada Konfigurasi AC-Coupled dan DC-Coupled di Kabupaten Sumenep. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini bertujuan menganalisis perilaku operasional dan implikasi tekno-ekonomi sistem Pembangkit Listrik Tenaga Surya (PLTS) yang terintegrasi dengan Battery Energy Storage System (BESS) pada konfigurasi AC-coupled dan DC-coupled dalam sistem kelistrikan on-grid Kabupaten Sumenep. Kabupaten Sumenep dipilih karena memiliki potensi energi surya yang tinggi serta rencana pengembangan PLTS sebesar 50 MW. Data kebutuhan beban sistem menunjukkan nilai yang relatif sebanding dengan rencana kapasitas PLTS. Pemodelan dan simulasi dilakukan menggunakan perangkat lunak HOMER Pro dengan pendekatan sistem terhubung jaringan (grid-connected system). Analisis menggunakan parameter teknis berupa produksi energi PLTS, grid purchase, BESS annual throughput, dan Renewable Fraction (RF), serta parameter ekonomi berupa Net Present Cost (NPC) dan Levelized Cost of Energy (LCOE). Selain analisis kondisi dasar, dilakukan analisis sensitivitas terhadap perubahan kapasitas PLTS, irradiance, dan beban sistem. Hasil penelitian menunjukkan bahwa peningkatan kapasitas PLTS dan irradiance meningkatkan aktivitas baterai, sedangkan peningkatan beban tidak memberikan peningkatan aktivitas baterai yang signifikan. Konfigurasi DC-coupled menghasilkan utilisasi baterai yang lebih tinggi dibanding konfigurasi AC-coupled, dengan nilai BESS annual throughput mencapai 2,95 GWh/tahun pada kondisi dasar dibandingkan 0,14 GWh/tahun pada konfigurasi AC-coupled. Namun demikian, peningkatan aktivitas baterai tersebut tidak diikuti peningkatan performa ekonomi yang sebanding. Konfigurasi AC-coupled menghasilkan nilai LCOE dan NPC yang sedikit lebih rendah dibandingkan konfigurasi DC-coupled. Temuan penelitian menunjukkan bahwa utilisasi baterai pada sistem PLTS-BESS on-grid lebih dipengaruhi oleh ketersediaan surplus energi PLTS dibanding perubahan kebutuhan beban, serta peningkatan utilisasi baterai tidak selalu menghasilkan peningkatan kontribusi energi terbarukan maupun performa ekonomi yang proporsional.
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This study aims to analyze the operational behavior and techno-economic implications of a photovoltaic (PV) system integrated with a Battery Energy Storage System (BESS) under AC-coupled and DC-coupled configurations in the on-grid power system of Sumenep Regency, Indonesia. Sumenep was selected due to its high solar energy potential and the planned development of a 50 MW PV power plant, which is relatively comparable to the local electricity demand. Modeling and simulation were conducted using HOMER Pro under a grid-connected system approach. The analysis employed technical indicators including PV energy production, grid purchase, BESS annual throughput, and Renewable Fraction (RF), as well as economic indicators represented by Net Present Cost (NPC) and Levelized Cost of Energy (LCOE). Sensitivity analyses were performed on PV capacity, solar irradiance, and load demand. The results indicate that increasing PV capacity and solar irradiance enhances battery activity, while increasing load demand has little effect on battery utilization. The DC-coupled configuration demonstrates higher battery utilization than the AC-coupled configuration, with a BESS annual throughput of 2.95 GWh/year compared to 0.14 GWh/year. However, the higher battery utilization is not accompanied by proportional improvements in economic performance. The AC-coupled configuration yields slightly lower LCOE and NPC values. The findings suggest that battery utilization in on-grid PV–BESS systems is influenced more by the availability of PV surplus energy than by changes in load demand, and that higher battery utilization does not necessarily result in proportional improvements in renewable energy contribution or overall economic performance.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | PLTS–BESS, AC-coupled, DC-coupled, utilisasi baterai, surplus energi, PV-BESS, AC-coupled, DC-coupled, battery utilization, surplus energy, techno-economic analysis |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1087 Photovoltaic power generation T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1322.6 Electric power-plants T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2941 Storage batteries |
| Divisions: | Interdisciplinary School of Management and Technology (SIMT) |
| Depositing User: | M Hajam Maskur |
| Date Deposited: | 24 Jul 2026 02:20 |
| Last Modified: | 24 Jul 2026 02:20 |
| URI: | http://repository.its.ac.id/id/eprint/136952 |
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