FEBRIANTO, Andru Fajar and Sutanto, Heri and Windarta, Jaka (2023) STUDI KELAYAKAN PENGGANTIAN PLTD KE PLTS SEBAGAI MERIT ORDER BASELOAD PADA ANALISIS SISTEM KELISTRIKAN LOMBOK (STUDI KASUS DI GILI MENO, GILI AIR DAN GILI TRAWANGAN). Masters thesis, UNIVERSITAS DIPONEGORO.

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Abstract

Program dedieselisasi Pemerintah Indonesia yang diamanahkan ke PT PLN (Persero) salah satunya adalah penggantian PLTD ke PLTS dengan penambahan baterai sebagai merit order baseload dengan target pulau kecil yang sistem kelistrikannya terpisah (isolated). Penelitian ini dilakukan pada sistem kelistrikan Lombok di Gili Meno, Gili Air dan Gili Trawangan (Gili MATRA) karena lokasi pulau berdekatan agar karakteristik pendukung masih relevan dan memiliki nilai lebih karena merupakan kawasan pariwisata internasional. Perencanaan kapasitas PLTS dan baterai untuk menggantikan PLTD menggunakan aplikasi PVsyst V7.3.3 metode trial and error sesuai periode perencanaan dengan growth konsumsi energi 3,14% dan growth beban puncak 1,38% pada Gili Meno diperlukan kapasitas PLTS sebesar 555 kWp dan kapasitas baterai 6.760 Ah (menggantikan kapasitas PLTD sebesar 330 kW) menghasilkan kontribusi energi sebesar 2.815.904,35 kWh atau Rp12.649.042.332,00 (selisih Rp1.447.374.835,00 dari penggantian PLTD), nilai NPV: Rp3.388.717.871,00, nilai BCR: 1,12, PP: 14,88 tahun, penurunan emisi: 8.293,97 tonCO2e dan aspek sosial: 0,672 DALY (8,062 bulan). Pada Gili Air diperlukan kapasitas PLTS sebesar 1.140 kWp dan kapasitas baterai 14.560 Ah (menggantikan kapasitas PLTD 650 kW) dapat menghasilkan kontribusi energi: 5.586.659,35 kWh atau Rp25.095.273.820,00 (selisih Rp2.871.542.908,00 dibanding menggunakan PLTD), nilai NPV: Rp4.786.305.909,00, nilai BCR: 1,08, PP: 15,57 tahun, penurunan emisi: 16.419,29 tonCO2e dan aspek sosial: 1,330 DALY (15,960 bulan). Pada Gili Trawangan untuk menggantikan kapasitas PLTD sebesar 1.780 kW diperlukan kapasitas PLTS sebesar 3.374 kWp dan kapasitas baterai 36.900 Ah menghasilkan kontribusi energi: 16.169.967,93 kW atau Rp72.635.495.948,00 (menghasilkan selisih sebesar Rp8.311.363.517,00 dari penggunaan PLTD), nilai NPV: Rp10.149.198.254,00, nilai BCR: 1,06, PP: 16,04 tahun, penurunan emisi: 47.404,61 tonCO2e dan aspek sosial: 3,840 DALY (46,077 bulan). Tingginya dampak pada penelitian karena sebagian besar kebutuhan energi listrik di Gili MATRA sebelumnya masih disuplai oleh PLTD.
Kata Kunci: Dedieselisasi, PT PLN (Persero), diesel power plant, solar power plant, baterai, PVsyst, Gili MATRA.

One of the Indonesia government dedieselization program mandated to PT PLN (Persero) is the replacement of diesel power plant to solar power plant with the addition of battery as a merit order baseload targeting small islands with isolated electricity systems. This research was conducted in the Lombok electricity system in Gili Meno, Gili Air and Gili Trawangan (Gili MATRA) because the location of the islands is close together so that the supporting characteristics are still relevant and have more value because it’s an international tourism area. Planning the capacity of solar power plant and battery to replace diesel power plant using the PVsyst V7.3.3 application with trial and error method according to the planning period with 3.14% energy consumption growth and 1.38% peak load growth in Gili Meno requires solar power plant capacity of 555 kWp and a battery capacity of 6,760 Ah (replacing 330 kW diesel power plant capacity) resulting in energy contribution: 2,815,904.35 kWh or IDR12,649,042,332 (difference until IDR1,447,374,835 from replacing diesel power plant), NPV: IDR3,388,717,871 BCR: 1.12, PP: 14.88 years, emission reduction: 8,293.97 tonsCO2e and social aspect: 0.672 DALY (8.062 months). In Gili Air, solar power plant capacity of 1,140 kWp and a battery capacity of 14,560 Ah (replacing PLTD capacity of 650 kW) is required, resulting in energy contribution: 5,586,659.35 kWh or IDR25,095,273,820 (difference until IDR2,871,542,908 compared to using diesel power plant), NPV: IDR4,786,305,909, BCR: 1.08, PP: 15.57 years, emission reduction: 16,419.29 tonsCO2e and social aspect: 1,330 DALY (15.960 months). In Gili Trawangan, to replace diesel power plant capacity of 1,780 kW, solar power plant capacity of 3,374 kWp and a battery capacity of 36,900 Ah is required, resulting in energy contribution: 16,169,967.93 kW or IDR72,635,495,948 (difference until IDR8,311,363,517 from the use of diesel power plant), NPV: IDR10,149,198,254, BCR: 1.06, PP: 16.04 years, emission reduction: 47,404.61 tonsCO2e and social aspect: 3,840 DALYs (46.077 months). The high impact on the study is because most of the previous electrical energy needs were still covered by diesel power plant.
Keywords: Dedieselization, PT PLN (Persero), diesel power plant, solar power plant, battery, PVsyst, Gili MATRA.

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