Optimasi Kapasitas PLTS Berdasarkan Ketersediaan Lahan Rooftop Menggunakan Helioscope
DOI:
https://doi.org/10.37859/jst.v13i1.11472
Abstract
The increasing demand for electrical energy in buildings requires the utilization of renewable energy as an alternative power source. One of the applicable solutions is the implementation of rooftop photovoltaic (PV) systems. This study aims to optimize the rooftop PV system capacity based on the available installation area at the BKD Building of Tebing Tinggi City using Helioscope software. The research method was carried out through building electrical load data collection, electrical energy requirement analysis, PV system capacity calculation, installation area requirement analysis, rooftop simulation using Helioscope software, and simple economic analysis. The results showed that the total electrical energy demand of the building was 304,212 Wh/day, with motor loads dominating energy consumption by 91% of the total electrical usage. The required PV system capacity to supply the entire building load was 82.393 kWp with a required installation area of 552.08 m². Based on the Helioscope simulation results, the available effective rooftop area was only 346.8 m², indicating that the PV system for supplying the entire building load was not feasible to implement. The optimization results showed that the most optimal PV configuration was supplying electronic and lighting loads with a capacity of 7,777.15 Wp using 79 solar modules and requiring an installation area of 52.93 m². The economic analysis indicated that the proposed PV system has a simple payback period of approximately 11 years, demonstrating its feasibility for long-term implementation in government buildings. This study demonstrates that rooftop validation using Helioscope software is essential to produce a realistic rooftop PV design that matches actual building conditions.
Downloads
References
R. Dwi, J. Kartika, and A. Murdianto, “Perencanaan Pembangkit Listrik Tenaga Surya Skala Industri Berbasis PVsyst,” vol. xx, no. 50, pp. 171–179, 2023, doi: 10.33650/jeecom.v4i2.
D. Eka, J. Sutiawan, J. T. Elektro, and U. Pakuan, “ANALISIS TEKNIS DAN EKONOMI PEMBANGKIT LISTRIK TENAGA SURYA ATAP BERBASIS PVsyst,” vol. xx, no. xx, pp. 110–119, 2024, doi: 10.33650/jeecom.v4i2.
Z. Latasya, I. D. Sara, J. Tgk, S. Abdurrauf, and B. Aceh, “Analisis Rancangan Pembangkit Listrik Tenaga Surya ( PLTS ) Off-grid Terpusat Dusun Ketubong Tunong Kecamatan Seunagan Timur Kabupaten Nagan Raya,” vol. 4, no. 2, pp. 1–14, 2019.
I. Hidayat and S. Salim, “Analisis Komparatif dan Optimasi PLTS Rooftop Berbasis GIS Comparative Analysis and Optimization of GIS-Based Rooftop Solar Power Plants,” vol. 8, 2026.
A. Setyawan, “PEMBANGKIT LISTRIK TENAGA SURYA OFF GRID UNTUK SUPPLY CHARGE STATION,” no. 1, pp. 23–28, 2022.
S. Nasional, T. Elektro, I. Hidayat, S. Salim, A. I. Tolago, and Z. Bonok, “SNTE-FORTEI Pemanfaatan GIS untuk Perencanaan dan Optimasi PLTS Rooftop di Gedung Teknik UNG,” pp. 180–191.
A. M. Nasution, I. Ernawati, and A. P. Nugroho, “Study of The Potential for Installing a Solar Power Plant on The Roof of The Temanggung Regional Library Building,” vol. 5, no. 1, pp. 22–28, 2023.
R. R. Solar, “Technical Note,” no. 20, pp. 1–16, 2025.
A. P. Nugroho, D. Kurniawan, and I. Pendahuluan, “Potensi Pembangkit Listrik Tenaga Surya Rooftop di Gedung Mohammad Hatta , Universitas Proklamasi 45 Abstrak Potensi Pembangkit Listrik Tenaga Surya Rooftop di Gedung Mohammad Hatta , Universitas Proklamasi 45,” vol. 5, no. 1, pp. 12–19, 2025.
S. S. Sudewanto and M. A. Riyadi, “Evaluasi Pemanfaatan Pembangkit Listrik Tenaga Surya On Grid di Laboratorium B PLN UPDL Pandaan Evaluation on On-Grid Solar Cell Usage in Laboratorium B PLN UPDL Pandaan,” vol. 8, no. 2.
R. P. Dewi, F. Hazrina, and B. Widianingsih, “Optimalisasi Kapasitas Rooftop PV System Skala Rumah Tangga di Perumahan,” vol. 13, no. 01, pp. 67–73, 2022, doi: 10.35970/infotekmesin.v13i1.937.
N. Pasra and S. R. Adewijaya, “Design And Simulation Of Solar Power Generation On Rooftops Towards Clean Technology,” vol. 19, no. 02, pp. 55–60, 2023.
Y. Putra, H. Lumbantobing, and Y. Imamulhak, “Design and Analysis of Grid Connected Photovoltaic Rooftop System in the Kadudampit District Office,” vol. 05, no. 01, pp. 35–41, 2025, doi: 10.52005/fidelity.v5i1.138.
S. Hani, G. Santoso, and N. Arifin, “Perencanaan Pembangkit Listrik Tenaga Surya ( PLTS ) On-Grid Dengan Sistem DC Coupling Berkapasitas 17 kWP Pada Gedung,” vol. 5, no. 2502, 2020, doi: 10.22236/teknoka.v5i.300.
S. D. Iriyanto, A. B. Rehiara, and Y. Rumengan, “Techno-economic assessment of rooftop solar photovoltaic integration for institutional energy efficiency and sustainability enhancement,” vol. 3, no. 1, pp. 57–70, 2025.
I. K. Mangelep and M. Rumbayan, “Rooftop Solar Power Plants for Garden House Electrical Energy Sources,” vol. 12, no. 3, pp. 167–174, 2023.
D. D. E. B. Soares, E. Paris, B. Hell, and E. Bacry, “Predicting the Solar Potential of Rooftops using Image Segmentation and Structured Data,” pp. 1–8, 2016.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2026 Irfan Nofri, Rohana Rohana, Sudirman Lubis, Sawirman Nasution
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
