ARIBOWO, Nanang and Facta, Mochammad and Saptadi, Singgih (2026) PERENCANAAN PENGEMBANGAN PRODUKSI ENERGI PLTS ATAP SISTEM ON GRID PADA GEDUNG PEMERINTAH (STUDI KASUS GEDUNG SEKRETARIAT DPRD PROVINSI JAWA TENGAH). Masters thesis, UNIVERSITAS DIPONEGORO.
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Abstract
Peningkatan kebutuhan energi seiring pertumbuhan penduduk serta ketergantungan pada energi fosil menimbulkan tantangan besar terhadap keberlanjutan pasokan energi dan peningkatan emisi gas rumah kaca (GRK). Sektor bangunan menyerap hampir 50% energi nasional dan berkontribusi 30% terhadap emisi GRK sehingga menjadi fokus penting dalam upaya transisi menuju energy bersih. Pembangkit Listrik Tenaga Surya (PLTS) atap dipandang sebagai solusi strategis, mengingat potensi energi surya Indonesia yang sangat besar serta arah kebijakan nasional menuju target Net Zero Emission 2060. Upaya percontohan pemanfaatan PLTS dilakukan di Gedung Sekretariat DPRD Provinsi Jawa Tengah yang telah memiliki PLTS atap berkapasitas 30 kWp sejak 2019, namun hanya memanfaatkan sekitar 176 m² dari total luas atap 1.663 m². Di tahun 2022 total penghematan biaya energi tertinggi sebesar Rp 86.850.290,- atau 6.99% dan di tahun 2024 hanya Rp 60.340.000,- atau 3,78% saja. Biaya konsumsi listrik yang
masih tinggi seharusnya dapat dikurangi dengan memanfaatkan ketersediaan lahan atap pengembangan kapasitas PLTS yang mampu meningkatkan penghematan konsumsi energi listrik gedung. Analisis potensi pengembangan PLTS atap pada gedung tersebut melalui pendekatan teknis, kontribusi terhadap pengurangan emisi CO₂ dan keekonomian. Adapun alternatif yang terbentuk berdasarkan variasi komponen selanjutnya dioptimalisasi pemilihannya dengan menggunakan metode Analisis Hierarki Proses (AHP). Hasil penelitian menunjukkan bahwa pengembangan PLTS Atap sistem on grid dengan kapasitas total 166 kWp secara teknis mampu meningkatkan penghematan energi rata-rata 265.280 kWh/tahun dan
mampu mereduksi emisi rata-rata 222,84 tonCO2/tahun dengan memanfaatkan 248 buah modul surya tipe Longi LR-7 670M kapasitas 670 Wp, dan dua unit grid tie inverter Growatt dengan kapasitas 36 kW dan 110 kW. Secara keekonomian nilai NPV dan BCR menunjukkan rencana pengembangan ini layak untuk dilakukan dengan payback periode 8,08 tahun pada pengembangan kapasitas 36 kW dan 8,84 tahun pada pengembangan kapasitas 110 kW.
Kata Kunci : PLTS, AHP, Penghematan, Gedung Pemerintahan
The increasing energy demand driven by population growth and high dependence on fossil fuels poses major challenges to the sustainability of energy supply and the rising greenhouse gas (GHG) emissions. The building sector consumes nearly 50% of the national energy and contributes around 30% to GHG emissions, making it a key focus in the transition toward clean energy. Rooftop Solar Power Plants (PLTS) are regarded as a strategic solution, considering Indonesia’s vast solar energy potential and the national policy direction toward achieving Net Zero Emissions by 2060. A pilot project for the use of solar power plants was conducted at the Secretariat Building of the Regional House of Representatives (DPRD) of Central Java Province, which has operated of 30 kWp rooftop solar PV system since 2019, but only utilizies around 176 m² of its total roof area of 1,663 m². The highest annual energy cost savings were achieved in 2022 at Rp 86,850,290 or 6.99%, declining to only Rp 60,340,000 or 3.78% in 2024. The high cost of electricity consumption should be able to be reduced by utilizing the availability of rooftop land to develop solar power plant capacity which can increase savings in building electricity consumption. This study analyzes the potential development of rooftop PV systems on the building based on technical performance, CO₂ emission reduction, and economic feasibility. The alternatives formed based on component variations are the optimized for selection using the Process Hierarchy Analysis (AHP) method. The results of the research show that the development of a rooftop solar power plant grid connected system with a total capacity of 166 kWp is technically capable of increasing average energy savings 265,280 kWh/year and reducing emissions 222.84 tons of CO2/year by utilizing 248 Longi LR-7 670M type solar modules with capacity of 670 Wp and two Growatt inverter units with a capacity of 36 kW and 110 kW. Economically, the NPV and BCR values show that this development plan is feasible to implement with a payback period 8.08 years for 36 kW and 8.84 years for 110 kW.
Keywords: Rooftop PV, AHP, Energy Saving, Government Building
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | PLTS, AHP, Penghematan, Gedung Pemerintahan |
| Subjects: | Engineering |
| Divisions: | Postgraduate Program > Master Program in Energy |
| Depositing User: | ekana listianawati |
| Date Deposited: | 24 Feb 2026 08:16 |
| Last Modified: | 24 Feb 2026 08:16 |
| URI: | https://eprints2.undip.ac.id/id/eprint/45902 |
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