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Perancangan Sistem Pembangkit Listrik Tenaga Surya (PLTS) Off-Grid Pada Gedung Perkuliahan Fauzsan, Achmad Yamani; Yunesti, Putty; Wardani, Wulan Kusuma; Soelami, FX Nugroho; Friansa, Koko; Bangun Persada, Guna; Wira Buana, Setiadi
Journal of Community Development and Disaster Management Vol 7 No 1 (2025): Journal of Community Development and Disaster Management
Publisher : Institut Agama Islam Sunan Giri Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/jcd.v7i1.6965

Off-Grid Solar Power Plant (PLTS) system planning at Building F of the Sumatra Institute of Technology, South Lampung Regency, Lampung Province is one of the efforts or strategies in reducing the use of conventional electrical energy from the main supplier, namely the State Electricity Company (PLN), and helping to succeed the government's efforts to increase the consumption of new and renewable energy. In PLTS system planning, the aspects that will be analyzed in this research are technical aspects with the help of PVsyst software to collect data regarding technical indicators such as performance ratios and energy production generated by Off-Grid PLTS. In this research, the required land area is 52 m2 from a total of 930 m2 of available land. The simulation results show that the planned rooftop solar system has a capacity of 10.8 kWp using 24 units of AE SOLAR MC144 430-450 W type solar modules, with the capacity of each module being 450 Wp. The PLTS system uses 1 inverter with the type Victron Quattro 48/15000 (15 kW) with a capacity of 15,000 W and uses a battery with the type LUNA2000-15- S0 which has a capacity of 15 kW in each unit. In this study, the solar module received solar irradiation of 4,616 kWh/m2 per day and 1,684 kWh/m2 per year. The production obtained in this study amounted to 14,475 kWh per year. The percentage of the Performance Ratio (PR) value produced by the designed OffGrid PLTS system is 73.01%.

Comparative Analysis of Taper and Taperless Horizontal Turbine Blades at Labuhan Jukung Beach Buana, Setiadi Wira; Prakoso, Yudhistira Alghifari; Kencana, Elsa Rizkiya; Yunesti, Putty; Wardani, Wulan Kusuma; Persada, Guna Bangun; Madi
Jurnal Konversi Energi dan Manufaktur Vol. 10 No. 2 (2025)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.10.2.10

The uneven distribution of electricity demand across Indonesia necessitates the development of Renewable Energy Sources, particularly wind energy. This study evaluates the performance efficiency of horizontal-axis wind turbines equipped with two blade types: taper and taperless, both using the NACA 0012 airfoil. Aerodynamic simulations were conducted using QBlade software. Wind speed data from 2017 to 2022 were sourced from the European Centre for Medium-Range Weather Forecasts (ECMWF), while electricity consumption data were obtained from the Statistics Bureau of Pesisir Barat Regency. A quantitative approach using descriptive graphical analysis was employed to compare the performance metrics of the two blade designs. The results show that the taperless blade achieves higher power coefficient (Cp) and torque coefficient (Ct) values compared to the taper blade, although the taper blade produces greater torque (T). The energy conversion of the taperless blade reached 347.6 kWh, representing an increase of approximately 4.83% over the 331.6 kWh generated by the taper blade. Further analysis indicates that approximately 19 taperless-blade turbines are required to meet the daily electricity demand of 6,545 kWh in Pesisir Barat Regency. These findings support the recommendation to adopt taperless blades for improved wind energy utilization in the region.

ANALISIS KELAYAKAN TEKNO-EKONOMI PLTS ON-GRID PADA GEDUNG BALAI PELATIHAN PERTANIAN LAMPUNG Yunesti, Putty; Wardani, Wulan Kusuma
Jurnal Informatika dan Teknik Elektro Terapan Vol. 13 No. 3S1 (2025)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v13i3S1.7977

Dalam mendukung target 23% energi terbarukan dalam bauran energi nasional pada tahun 2025 sebagaimana tercantum dalam Kebijakan Energi Nasional (RUEN), penelitian ini dilakukan untuk merancang dan menganalisis kelayakan teknis serta ekonomi dari Pembangkit Listrik Tenaga Surya (PLTS) atap on-grid di Balai Pelatihan Pertanian Lampung. Penelitian mencakup perancangan teknis menggunakan perangkat lunak PVSyst dan Helioscope, serta analisis ekonomi dengan metode Life Cycle Cost (LCC) dan Levelized Cost of Energy (LCOE). Evaluasi kelayakan didasarkan pada indikator seperti Net Present Value (NPV), Internal Rate of Return (IRR), dan Discounted Payback Period (DPP). Hasil rancangan menunjukkan kapasitas optimal PLTS atap sebesar 6,05 kWp dengan asumsi radiasi matahari sebesar 1786,8 kWh/m²/tahun, menghasilkan produksi energi tahunan sebesar 8715,9 kWh dan Performance Ratio (PR) sebesar 80,6%. Biaya investasi awal diperkirakan sebesar Rp69.994.445,00, dengan LCC sebesar Rp96.347.850,77 dan LCOE sebesar Rp1.218,18/kWh. Analisis kelayakan ekonomi menunjukkan bahwa proyek ini menguntungkan, dengan NPV positif sebesar Rp14.686.055, DPP pada tahun ke-15, dan IRR sebesar 12,76%. Berdasarkan hasil tersebut, proyek PLTS atap ini dinyatakan layak untuk diimplementasikan pada bangunan yang dianalisis.

Desain Pembangkit Listrik Tenaga Surya Bifacial: Pendekatan Sudut Inklinasi Dhiyah Ayu, Haogqea; Asri, Rishal; Yunesti, Putty
Infotekmesin Vol 15 No 2 (2024): Infotekmesin, Juli 2024
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v15i2.2352

In this era, energy demand is increasing along with population growth and technological development. Energy is a basic need, and its availability is decreasing, necessitating renewable energy sources like solar energy. However, the current use of solar Photovoltaic (PV) relies only on one side. In this study, the bifacial method is used in solar power plants (PLTS) to reduce conventional energy consumption by identifying the relationship between the tilt angle and internal shading that affects the performance of bifacial photovoltaics. The PLTS system is designed with inclination angles of 8, 15, and 20 to minimize shading and maximize efficiency. PVsyst simulation results show that an 8 angle produces 22868 kWh/year, a 15 angle produces 22724 kWh/year, and a 20 angle produces 22464 kWh/year. Shading affects energy production, but the 8 angle has the lowest power reduction. Choosing the right inclination angle can improve PLTS efficiency and performance.

Analysis of Electrical Energy Consumption and Lighting Systems in PT X Lampung Office Buildings Naimah, Khoirun; Rahmatullah, Abri; Yunesti, Putty
Jambura Journal of Electrical and Electronics Engineering Vol 6, No 2 (2024): Juli - Desember 2024
Publisher : Electrical Engineering Department Faculty of Engineering State University of Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjeee.v6i2.25215

Electricity plays a crucial role in the operations of companies and offices, as highlighted in the 2022 data from the Ministry of Energy and Mineral Resources. The commercial sector recorded an energy usage of 49.65 million BOE (Barrel Oil Equivalent) and 68.891 GWh of electricity consumption. Excessive use of electrical equipment leads to wastage, resulting in higher electricity bills. Thus, there is a need for an efficient system in both lighting and other areas, with efforts focused on enhancing energy efficiency through conservation.This Final Project aims to determine and analyze Energy Consumption Intensity (IKE) values, lighting systems, and identify opportunities for electricity consumption savings at the PT. X Lampung Office Building. The research method involves an initial energy audit and brief measurements on the lighting system. Results indicate that, out of 13 rooms on all three floors, only 5 meet the standards. The analysis identifies opportunities for electricity consumption savings, with a no-cost method at 8.1% and a low-cost method at 9.1%. These findings are expected to serve as recommendations for identifying energy-saving opportunities in Indonesian office buildings.

Perancangan Sistem Pembangkit Listrik Tenaga Surya (PLTS) Off-Grid Pada Gedung Perkuliahan: Design of Off-Grid Solar Power Plant System (PLTS) in Lecture Building Fauzsan, Achmad Yamani; Yunesti, Putty; Wardani, Wulan Kusuma; Soelami, FX Nugroho; Friansa, Koko; Bangun Persada, Guna; Wira Buana, Setiadi
Journal of Community Development and Disaster Management Vol. 7 No. 1 (2025): Journal of Community Development and Disaster Management
Publisher : Institut Agama Islam Sunan Giri Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/jcd.v7i1.6965

Off-Grid Solar Power Plant (PLTS) system planning at Building F of the Sumatra Institute of Technology, South Lampung Regency, Lampung Province is one of the efforts or strategies in reducing the use of conventional electrical energy from the main supplier, namely the State Electricity Company (PLN), and helping to succeed the government's efforts to increase the consumption of new and renewable energy. In PLTS system planning, the aspects that will be analyzed in this research are technical aspects with the help of PVsyst software to collect data regarding technical indicators such as performance ratios and energy production generated by Off-Grid PLTS. In this research, the required land area is 52 m2 from a total of 930 m2 of available land. The simulation results show that the planned rooftop solar system has a capacity of 10.8 kWp using 24 units of AE SOLAR MC144 430-450 W type solar modules, with the capacity of each module being 450 Wp. The PLTS system uses 1 inverter with the type Victron Quattro 48/15000 (15 kW) with a capacity of 15,000 W and uses a battery with the type LUNA2000-15- S0 which has a capacity of 15 kW in each unit. In this study, the solar module received solar irradiation of 4,616 kWh/m2 per day and 1,684 kWh/m2 per year. The production obtained in this study amounted to 14,475 kWh per year. The percentage of the Performance Ratio (PR) value produced by the designed OffGrid PLTS system is 73.01%.

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