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Enhancing Energy Supply Reliability for University Lecture Halls Using Photovoltaic-Battery Microgrids: A South African Case Study

Author

Listed:
  • Obu Samson Showers

    (Electrical Engineering Department, University of Cape Town, Private Bag X3, Upper Campus, Rondebosch, Cape Town 7700, South Africa)

  • Sunetra Chowdhury

    (Electrical Engineering Department, University of Cape Town, Private Bag X3, Upper Campus, Rondebosch, Cape Town 7700, South Africa)

Abstract

Institutions of higher learning in South Africa are grappling with occasional power outages in lecture halls, leading to disruptions in academic activities and occasional loss of lecture hours. Therefore, this study presents a comprehensive evaluation of a grid-connected solar PV/Li-ion battery microgrid (μG) system aimed at maintaining a constant power supply to selected lecture halls at a university in the Western Cape, South Africa. The microgrid design, modelling, and simulations, conducted in the MATLAB/Simulink environment, include the solar PV, Li-ion battery, energy consumption of the lecture halls (load profile), boost converter, bidirectional converter, and grid. Using the detailed design, modelling, and simulation, the study evaluates the economic and environmental impacts of integrating μGs, focusing on enhancing energy reliability, reducing operational costs, and mitigating CO 2 emissions. The results indicate that integrating the microgrid resulted in a significant 51% reduction in energy cost and a decrease in greenhouse gas emissions by 530 kgCO 2 e per hour. In Cases 2 and 4, where the battery supplied power, the annual battery degradation costs are 6.08% and 14.9% of the initial cost, respectively. The μG ensures an uninterrupted power supply and improves the overall reliability of the university’s energy infrastructure. It promotes environmental sustainability goals of zero emissions and maintains continuous academic activities during grid outages. Furthermore, it fosters a conducive learning environment, supports innovation and creativity in sustainable energy technologies, and sets a standard for other higher education institutions to integrate renewable energy-powered μGs.

Suggested Citation

  • Obu Samson Showers & Sunetra Chowdhury, 2024. "Enhancing Energy Supply Reliability for University Lecture Halls Using Photovoltaic-Battery Microgrids: A South African Case Study," Energies, MDPI, vol. 17(13), pages 1-26, June.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:13:p:3109-:d:1421024
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    References listed on IDEAS

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    1. Mokesioluwa Fanoro & Mladen Božanić & Saurabh Sinha, 2022. "A Review of the Impact of Battery Degradation on Energy Management Systems with a Special Emphasis on Electric Vehicles," Energies, MDPI, vol. 15(16), pages 1-29, August.
    2. Jerry L. Holechek & Hatim M. E. Geli & Mohammed N. Sawalhah & Raul Valdez, 2022. "A Global Assessment: Can Renewable Energy Replace Fossil Fuels by 2050?," Sustainability, MDPI, vol. 14(8), pages 1-22, April.
    3. Sanni, Shereefdeen Oladapo & Oricha, Joseph Yakubu & Oyewole, Taoheed Oluwafemi & Bawonda, Femi Ikotoni, 2021. "Analysis of backup power supply for unreliable grid using hybrid solar PV/diesel/biogas system," Energy, Elsevier, vol. 227(C).
    4. Kai Xu & Youguang Guo & Gang Lei & Jianguo Zhu, 2023. "A Review of Flywheel Energy Storage System Technologies," Energies, MDPI, vol. 16(18), pages 1-32, September.
    5. Haseeb Javed & Hafiz Abdul Muqeet & Moazzam Shehzad & Mohsin Jamil & Ashraf Ali Khan & Josep M. Guerrero, 2021. "Optimal Energy Management of a Campus Microgrid Considering Financial and Economic Analysis with Demand Response Strategies," Energies, MDPI, vol. 14(24), pages 1-24, December.
    6. Adefarati, T. & Bansal, R.C., 2019. "Reliability, economic and environmental analysis of a microgrid system in the presence of renewable energy resources," Applied Energy, Elsevier, vol. 236(C), pages 1089-1114.
    7. Bonginkosi A. Thango & Pitshou N. Bokoro, 2022. "Battery Energy Storage for Photovoltaic Application in South Africa: A Review," Energies, MDPI, vol. 15(16), pages 1-21, August.
    8. Tehreem Nasir & Syed Sabir Hussain Bukhari & Safdar Raza & Hafiz Mudassir Munir & Muhammad Abrar & Hafiz Abd ul Muqeet & Kamran Liaquat Bhatti & Jong-Suk Ro & Rooha Masroor, 2021. "Recent Challenges and Methodologies in Smart Grid Demand Side Management: State-of-the-Art Literature Review," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-16, August.
    9. Malheiro, André & Castro, Pedro M. & Lima, Ricardo M. & Estanqueiro, Ana, 2015. "Integrated sizing and scheduling of wind/PV/diesel/battery isolated systems," Renewable Energy, Elsevier, vol. 83(C), pages 646-657.
    10. Roy, Apratim & Kabir, Md. Ashfanoor, 2012. "Relative life cycle economic analysis of stand-alone solar PV and fossil fuel powered systems in Bangladesh with regard to load demand and market controlling factors," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(7), pages 4629-4637.
    11. Pu, Zonghua & Zhang, Gaixia & Hassanpour, Amir & Zheng, Dewen & Wang, Shanyu & Liao, Shijun & Chen, Zhangxin & Sun, Shuhui, 2021. "Regenerative fuel cells: Recent progress, challenges, perspectives and their applications for space energy system," Applied Energy, Elsevier, vol. 283(C).
    12. Jalali, Mohammad Majid & Kazemi, Ahad, 2015. "Demand side management in a smart grid with multiple electricity suppliers," Energy, Elsevier, vol. 81(C), pages 766-776.
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