Optimization of Capacity and Performance Analysis of Rooftop Solar Power Plants Using MATLAB Based on Load Profiles and Solar Irradiance at Politeknik Negeri Medan

Cholis Cholish, Abdullah Abdullah, Suprianto Suprianto, Surya Hardi, Irfan Nofri, Abdul Azis Hutasuhut, Zarina Binti Ismail


Abstract


The demand for electrical energy in the education sector continues to increase along with the growing use of electrical equipment, laboratories, and academic activities. Politeknik Negeri Medan, as a vocational education institution, has relatively high electrical energy consumption; therefore, a more efficient and environmentally friendly alternative energy source is required. This study aims to analyze and optimize a rooftop Solar Power Plant (SPP) system using MATLAB based on building load profiles and solar irradiance intensity in Medan City. The research method was carried out through the collection of building electrical load profile data, solar irradiance data, and rooftop area measurements. Simulation and optimization of the rooftop photovoltaic system were conducted using MATLAB to analyze system capacity, number of solar panels, energy performance, system efficiency, solar panel distribution, and potential electrical energy savings. The results showed that the total electrical energy demand of the Politeknik Negeri Medan building was 5,410 kWh/day with a total installed power of 1,352.57 kW. Based on the simulation results, the optimum photovoltaic system capacity was 1,516.25 kWp with 2,757 solar panels of 550 Wp capacity each. The photovoltaic system was able to generate relatively stable electrical energy throughout the year, with solar irradiance having a significant influence on the system output energy. The analysis also showed that the effective rooftop area of 11,601.61 m² was sufficient for solar panel installation requiring an area of 8,491 m². In addition, the photovoltaic system has the potential to reduce electricity costs by approximately IDR 2.81 billion per year. This study demonstrates that the implementation of a rooftop photovoltaic system using MATLAB at Politeknik Negeri Medan is feasible from technical, economic, and environmental perspectives. The use of MATLAB improves the quality of photovoltaic system analysis through detailed and systematic energy performance simulations and solar panel configuration optimization

Keywords


Rooftop Photovoltaic; MATLAB; Solar Energy; Photovoltaic System Optimization; Irradiance; Load Profile; Renewable Energy

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References


A. Rasool, M. Amjad, M. Hassan, M. Shafiullah, and M. S. Mastoi, “A simulation-based framework for pre-installation solar PV feasibility assessment using long-term climatic data,” Next Energy, vol. 12, no. January, p. 100644, 2026, doi: 10.1016/j.nxener.2026.100644.

A Azis, I. Nofri, A. Pangestu, and C. Cholish, “ANALISIS KUANTITATIF KONTRIBUSI DAYA REAKTIF KABEL TANAH 20 KV TERHADAP PROFIL TEGANGAN METODE GAUSS – SEIDEL BERBASIS MATLAB,” vol. 10, no. 1, pp. 84–94, 2026.

M. Nfaoui et al., “Comprehensive modeling and simulation of photovoltaic system performance by using matlab/simulink: integrating dynamic meteorological parameters for enhanced accuracy,” J. Umm Al-Qura Univ. Appl. Sci., vol. 11, no. 3, pp. 633–656, 2025, doi: 10.1007/s43994-024-00175-5.

A. K. Al-Hanoot, H. Mokhlis, S. Mekhilef, M. Alghoul, H. Shareef, and Z. Alotaibi, “Techno-economic analysis of cutting-edge PV systems deployment and reconfigurations on rooftop industrial building in Saudi Arabia’s eastern region,” Energy Convers. Manag. X, vol. 25, no. December 2024, p. 100873, 2025, doi: 10.1016/j.ecmx.2025.100873.

M. Agung and Y. Widiawati, “Kajian Pemasangan PLTS dengan Menggunakan… Kajian Pemasangan PLTS dengan Menggunakan Software PVsyst The study of Solar Power Plant Installation Using PVsyst Software,” Electr. - J. Otomasi Kelistrikan dan Energi Terbarukan, vol. 7, pp. 1–10, 2025.

E. M. Silalahi, “Analisis Energi Listrik Plts on-Grid Dengan Boost Converter Dan Inverter Berbasis Matlab/Simulink,” J. Inform. dan Tek. Elektro Terap., vol. 13, no. 1, 2025, doi: 10.23960/jitet.v13i1.5959.

A. Arida, D. Atmojo, I. T. Yuniahastuti, R. D. Laksono, T. Elektro, and P. Koresponden, “Analisis Potensi Daya Plts Rooftop Laboratorium,” pp. 66–75, 2025.

D. Sahidin, B. Ihsan, T. D. Rachmildha, and D. Hamdani, “Perancangan dan Pemodelan PLTS Off-Grid dengan Penyimpanan Energi Hibrida Berbasis Superkapasitor-Baterai: Studi Kasus di Desa Karamina, Papua,” J. Ris. Rekayasa Elektro, vol. 7, no. 1, pp. 23–34, 2025, doi: 10.30595/jrre.v7i1.26325.

P. Variasi and K. Irradiasi, “Jurnal simetrik,” pp. 138–148, 2025.

H. S. Fikri, D. Nugroho, and B. P. Jati, “Optimasi Kinerja Panel Surya Monocrystalline dan Polycrystalline dengan Pengendali MPPT pada Berbagai Tingkat Iradiasi dan Temperatur: Studi Simulasi dengan Matlab,” Avitec, vol. 6, no. 1, p. 19, 2024, doi: 10.28989/avitec.v6i1.2024.

T. M. Putri, “Pemodelan Pembangkit Listrik Tenaga Surya Off-Grid untuk Skala Rumah Tangga Tiris Mega Putri Unit Three Kartini , Joko , Raden Roro Hapsari Peni Agustin Tjahyaningtijas,” J. Tek. Elektro, vol. 14, no. 1, pp. 16–25, 2023.

M. Bernandos, A. F. Perangin Angin, and F. S. Pratama, “Designing an on-Grid Solar Power Plant At the Women’S Dormitory Building of Aviation Polytechnic Jayapura,” J. Din. Vokasional Tek. Mesin, vol. 8, no. 2, pp. 125–134, 2023, doi: 10.21831/dinamika.v8i2.67281.

B. Cirak, “Modelling and Simulation of Photovoltaic Systems Using MATLAB / Simulink,” WSEAS Trans. Power Syst., vol. 18, pp. 49–56, 2023, doi: 10.37394/232016.2023.18.6.

Priatam et al., “Analisa Radiasi Sinar Matahari Terhadap Panel Surya 50 WP,” RELEJurnal Tek. Elektro, vol. 4, no. 1, pp. 48–54, 2021, [Online]. Available: http://jurnal.umsu.ac.id/index.php/RELE/article/view/7825

P. Harahap, I. Nofri, and S. Lubis, “PLTS 200 Wp to Meet Energy Needs at the Taqwa Muhammadiyah Mosque, Sei Litur Village, Sawit Sebrang Langkat District,” J. Innov. Community Engagem., vol. 1, no. 1, pp. 60–71, 2021, doi: 10.28932/jice.v1i1.3380.

M. T. Hossain, M. A. Rahman, and S. Chowdhury, “Evaluation of Power Performance of a PV Module with MPPT Solution Using MATLAB Simulation,” J. Renew. Energy Environ., vol. 8, no. 4, pp. 101–107, 2021, doi: 10.30501/jree.2021.274901.1193.

M. Shafiul Alam, F. S. Al-Ismail, A. Salem, and M. A. Abido, “High-level penetration of renewable energy sources into grid utility: Challenges and solutions,” IEEE Access, vol. 8, no. June, pp. 190277–190299, 2020, doi: 10.1109/ACCESS.2020.3031481.

A. N. Akpolat, E. Dursun, A. E. Kuzucuoğlu, Y. Yang, F. Blaabjerg, and A. F. Baba, “Performance analysis of a Grid-connected rooftop solar photovoltaic system,” Electron., vol. 8, no. 8, 2019, doi: 10.3390/electronics8080905.

A. Fernández-Guillamón, E. Gómez-Lázaro, E. Muljadi, and Á. Molina-García, “Power systems with high renewable energy sources: A review of inertia and frequency control strategies over time,” Renew. Sustain. Energy Rev., vol. 115, 2019, doi: 10.1016/j.rser.2019.109369.

X. Sun, M. R. Khan, C. Deline, and M. A. Alam, “Optimization and performance of bifacial solar modules: A global perspective,” Appl. Energy, vol. 212, pp. 1601–1610, 2018, doi: 10.1016/j.apenergy.2017.12.041.

D. Jumbo, A. Arif, and N. Al Ghozy, “Equivalent : Jurnal Ilmiah Sosial Teknik Optimasi Kinerja Sistem Pembangkit Listrik Tenaga Surya Terhubung Jaringan Berkapasitas 265 , 29 kWp,” vol. 7, no. 2, pp. 115–131.

B. H. Ganatra, A. K. Jha, K. R. B, and D. H. Ganatra, “PERFORMANCE AND ANALYSIS OF GRID CONNECTED PHOTOVOLTAIC SYSTEM USING MATLAB / SIMULINK,” vol. 7, no. 12, pp. 332–339.




DOI: https://doi.org/10.30743/jet.v11i2.13817

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