Techno-economic assessment of rooftop solar photovoltaic integration for institutional energy efficiency and sustainability enhancement

Authors

  • Sofyan Dwi Iriyanto Department of Electrical Engineering, Faculty of Engineering, Universitas Papua, Manokwari 98314, Indonesia
  • Adelhard Rehiara Department of Electrical Engineering, Faculty of Engineering, Universitas Papua, Manokwari 98314, Indonesia
  • Yanty Rumengan Department of Electrical Engineering, Faculty of Engineering, Universitas Papua, Manokwari 98314, Indonesia

DOI:

https://doi.org/10.61511/seesdgj.v3i1.2025.1967

Keywords:

Rooftop Solar PV, On-Grid System, Renewable Energy, Helioscope, West Papua

Abstract

Background : This study investigates the technical and economic feasibility of an on-grid rooftop solar photovoltaic (PV) system for the Postgraduate Building of the University of Papua, West Papua, Indonesia. Amid rising energy demands and limited renewable energy utilization in the region, this research addresses the need for sustainable electricity solutions. Methods: The system was designed using Helioscope software, considering solar radiation, shading, and local climate data. The proposed configuration consists of 14 polycrystalline solar modules (320 Wp each) and one SMA Sunny Tripower 5.0 kW inverter. Results: Simulation results indicate that the system can produce approximately 5,660 kWh annually, covering 19% of the building’s electricity consumption. The estimated initial investment of Rp 137,200,000 yields annual savings of Rp 9,617,740, resulting in a payback period of 14 years and 2 months. Conclusion: The findings demonstrate the viability of rooftop solar power systems for reducing energy costs and enhancing sustainability in remote areas. The project serves as a replicable model for academic institutions seeking to adopt renewable energy technologies. Novelty: This study provides a localized case of solar PV deployment in West Papua, contributing empirical insights to regions with limited renewable energy integration and offering a practical approach to energy transition in underserved areas.

References

Ariawan, I. G. A. J., Giriantari, I. A. D., & Sukerayasa, I. W. (2021). Perancangan Plts Atap Di Gedung Graha Sewaka Dharma. Jurnal SPEKTRUM, 8(3), 9–18. https://doi.org/10.24843/SPEKTRUM.2021.v08.i03.p2

Arnoos, H., Kamel, S., Jurado, F., & Yaqoob, S. J. (2024). Optimizing Photovoltaic Systems in Building Applications: Environmental and Economic Benefits with Helioscope and HOMER Pro Analysis. In 2024 International Conference on Electrical, Computer and Energy Technologies (ICECET (1-6). IEEE. https://doi.org/10.1109/ICECET61485.2024.10698227

Duka, E. T. A., Setiawan, I. N., & Weking, A. I. (2018). Perencanaan Pembangkit Listrik Tenaga Surya Hybrid Pada Area Parkir Gedung Dinas Cipta Karya, Dinas Bina Marga Dan Pengairan Kabupaten Badung. Jurnal SPEKTRUM, 5(2), 67–73. https://doi.org/10.24843/SPEKTRUM.2018.v05.i02.p09

Handayani, P. W., Rus’an, N., & Rezki, J. F. (2024). Reliable Electricity Access, Micro and Small Enterprises, and Poverty Reduction in Indonesia. Bulletin of Indonesian Economic Studies, 60(1), 35–66. https://doi.org/10.1080/00074918.2023.2175782

Iskandar, H. R., Taryana, E., & Zainal, Y. B. (2024). Modelling and analysis of rooftop PV as an energy optimization of flat roof and gable roof mounting system. SINERGI, 28(1), 1-12. https://doi.org/10.22441/sinergi.2024.1.001

Kapsalis, V., Maduta, C., Skandalos, N., Bhuvad, S. S., D’Agostino, D., Yang, R. J., Udayraj, Parker, D., & Karamanis, D. (2024). Bottom-up energy transition through rooftop PV upscaling: Remaining issues and emerging upgrades towards NZEBs at different climatic conditions. Renewable and Sustainable Energy Transition, 5, 100083. https://doi.org/10.1016/j.rset.2024.100083

Kortetmäki, A., Ylipaino, J., Koskela, J., Kallioharju, K., & Järventausta, P. (2024). The impact of metering methods on collective self-consumption: Insights from multi-dwelling buildings in Finland. Energy and Buildings, 319, 114511. https://doi.org/10.1016/j.enbuild.2024.114511

Kual, M., Palintin, A. D., & Sarungallo, P. (2023). Designing a Rooftop Solar Power Plant at the Faculty of Engineering Universitas Papua using PVSyst and EasySolar Software: Perancangan PLTS Atap di Gedung Fakultas Teknik Universitas Papua Menggunakan Software PVSyst dan Easysolar. JISTECH: Journal of Information Science and Technology, 11(2), 89–96. https://doi.org/10.30862/jistech.v11i2.114

López-Aguilar, H. A., Kennedy Puentes, G., Lozoya Márquez, L. A., Chávez Acosta, O., Monreal Romero, H. A., López Meléndez, C., & Pérez-Hernández, A. (2025). Evaluation of Energy Potential in a Landfill Through the Integration of a Biogas–Solar Photovoltaic System. Urban Science, 9(1). https://doi.org/10.3390/urbansci9010017

Mahdi, R. O., & Hacham., W. S. (2025). Baghdad’s Solar Power Potential: An Exploration Using PVsyst and HelioScope at Al-Khwarizmi College of Engineering. Al-Khwarizmi Engineering Journal, 21(1), 49–60. https://doi.org/10.22153/kej.2025.04.010

Maity, R., bin Ahmad Shuhaimi, M. K. I., Sudhakar, K., & Razak, A. A. (2024). Forestvoltaics, Floatovoltaics and Building Applied Photovoltaics (BAPV) Potential for a University Campus. Energy Engineering, 121(9), 2331–2361. https://doi.org/10.32604/ee.2024.051576

Mijbal, A. H., & Mohammed, F. S. (2025). Photovoltaic solar system for laboratory building. AIP Conference Proceedings, 3264(1), 020019. https://doi.org/10.1063/5.0259004

Poornima, P. U., Dhineshkumar, K., Kiran Kumar, C., Sumana, S., Rama Sundari, M. V., Sivaraman, P., Shuaib, M., & Rajaram, A. (2025). Optimising rooftop photovoltaic adoption in urban landscapes: A system dynamics approach for sustainable energy transitions. Biomedical Signal Processing and Control, 100, 107071. https://doi.org/10.1016/j.bspc.2024.107071

Pramadya, F. A., & Kim, K. N. (2024). Promoting residential rooftop solar photovoltaics in Indonesia: Net-metering or installation incentives? Renewable Energy, 222, 119901. https://doi.org/10.1016/j.renene.2023.119901

Rachmanto, R., Juwana, W., Akbar, A., Prasetyo, S., Bangun, W., & Arifin, Z. (2023). Economic Analysis of On-Grid Photovoltaic-Generator Hybrid Energy Systems for Rural Electrification in Indonesia. International Journal of Sustainable Development and Planning, 18, 2967–2973. https://doi.org/10.18280/ijsdp.180935

Rafi, M. A. I. R., M. Sajid Hasan, Imam-Ur-Rashid, M. Manzurul Hasan, J. Alam Chowdhury, M. Rahman Sohan, N. A. Jahan, & M. Mofazzal Hossain. (2025). Techno-Economic and Environmental Analysis of Solar PV System at Sher-e-Bangla National Cricket Stadium: A Comprehensive Case Study. IEEE Access, 13, 52658–52682. https://doi.org/10.1109/ACCESS.2025.3553636

Rehiara, A. B., & Setiawidayat, S. (2022). Day Ahead Solar Irradiation Forecasting Based on Extreme Learning Machine. In 2022 IEEE International Conference on Cybernetics and Computational Intelligence (CyberneticsCom) (pp. 63-66). IEEE.https://doi.org/10.1109/CyberneticsCom55287.2022.9865532

Rehiara, A. B., Bawan, E., Palintin, A., Wihyawari, B., Pasalli, Y., & Paisey, F. (2025). The Technical and Environmental Assesments of The Microhydro Power Plant of Werba. Journal of Electrical Systems, 21, 15–23.

Rehiara, A. B., Setiawidayat, S., & Sumbung, F. H. (2023). Day-Ahead Power Loss Minimization Based on Solar Irradiation Forecasting of Extreme Learning Machine. Advances in Science. Technology and Engineering Systems Journal, 8(2), 78–86. https://doi.org/10.25046/aj080209

Rehiara, A., Setiawidayat, S., Marini, L. F., & Raharjo, S. (2023). The Indonesian Government’s Role in Setting Renewable Energy Targets to Reduce GHG Emissions from the Electrical Energy Sector. Nakhara : Journal of Environmental Design and Planning, 22(2), 310. https://doi.org/10.54028/NJ202322310

S. D. Nugraha, M. Ashari, & D. C. Riawan. (2025). Multi-Objective Approach for Optimal Sizing and Placement of EVCS in Distribution Networks With Distributed Rooftop PV in Metropolitan City. IEEE Access, 13, 40883–40898. https://doi.org/10.1109/ACCESS.2025.3547327

Sinaga, R., Tambunan, A. H., & Prastowo, B. C. (2017). Optimization model of electrification ratio using solar photovoltaic: case study in Kupang Regency. In Proceeding of Annual South East Asian International Seminar, 7, 7-13.https://doi.org/10.31219/osf.io/drq3c

Tan, H., Guo, Z., Lin, Z., Chen, Y., Huang, D., Yuan, W., Zhang, H., & Yan, J. (2024). General generative AI-based image augmentation method for robust rooftop PV segmentation. Applied Energy, 368, 123554. https://doi.org/10.1016/j.apenergy.2024.123554

Virgiano, M. J. M., M. Ch. Mangindaan, G., & Lily S., P. (2022). Potensi Pengembangan Plts Di Lingkungan Fakultas Teknik Universitas Sam Ratulangi [Skripsi, Sam Ratulangi]. http://repo.unsrat.ac.id/3578/1/16021103054%20Jurnal%20Virigano%20Mamangkey.pdf

Wang, X., Gao, X., & Wu, Y. (2023). Comprehensive analysis of tropical rooftop PV project: A case study in nanning. Heliyon, 9(3). https://doi.org/10.1016/j.heliyon.2023.e14131

Wei, T., Zhang, Y., Zhang, Y., Miao, R., Kang, J., & Qi, H. (2024). City-scale roof-top photovoltaic deployment planning. Applied Energy, 368, 123461. https://doi.org/10.1016/j.apenergy.2024.123461

Workala, R. C., Palintin, A. D., & Stepanus, J. B. (2023). Study on Design of Rooftop On-Grid Solar Power Plant at the Rectorate Building of Papua University: Studi Perancangan Pembangkit Listrik Tenaga Surya (PLTS) Rooftop On-Grid di Gedung Rektorat Universitas Papua. JISTECH: Journal of Information Science and Technology, 11(2), 97–106. https://doi.org/10.30862/jistech.v11i2.115

Yao, H., & Zhou, Q. (2023). Research status and application of rooftop photovoltaic Generation Systems. Cleaner Energy Systems, 5, 100065. https://doi.org/10.1016/j.cles.2023.100065

Zhang, Z., Chen, M., Zhong, T., Zhu, R., Qian, Z., Zhang, F., Yang, Y., Zhang, K., Santi, P., Wang, K., Pu, Y., Tian, L., Lü, G., & Yan, J. (2023). Carbon mitigation potential afforded by rooftop photovoltaic in China. Nature Communications, 14(1), 2347. https://doi.org/10.1038/s41467-023-38079-3

Published

2025-07-31

How to Cite

Iriyanto, S. D., Rehiara, A., & Rumengan, Y. (2025). Techno-economic assessment of rooftop solar photovoltaic integration for institutional energy efficiency and sustainability enhancement. Social, Ecology, Economy for Sustainable Development Goals Journal, 3(1), 57–71. https://doi.org/10.61511/seesdgj.v3i1.2025.1967

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