Techno-Economic Feasibility Assessment for the promotion of Grid-Connected Rooftop PV Systems in Botswana: A Case Study
Received: 7 January 2023 | Revised: 24 January 2023 | Accepted: 26 January 2023 | Online: 2 April 2023
Corresponding author: Youssef Kassem
Abstract
The main aim of the present study is to investigate the solar energy potential and evaluate the economic viability of a 5kW grid-connected rooftop photovoltaic (PV) system as an electricity generation source in three selected regions (Gaborone, Maun, and Tshabong) in Botswana for the first time. In this study, NASA POWER data were used for evaluating the solar potential in the selected regions. The results showed that the selected locations are suitable for the installation of various scales of PV systems due to the high global horizontal solar radiation. RETScreen Expert software was used to assess the techno-economic feasibility of the proposed systems. The performance of the proposed systems with various PV technologies (mono-crystalline silicon and poly-crystalline silicon) is analyzed. Furthermore, economic and financial indicators such as net present value, annual life cycle savings, payback, benefit-cost ratio, and cost of energy production were calculated. The results indicate that the proposed system is very promising for all the selected locations. Additionally, it was found that the PV projects with poly-Si technology produced a large amount of energy and have a low electricity cost compared to mono-Si technology. The results suggest that grid-connected rooftop PV systems have a significant role in covering the electricity demand and in reducing carbon dioxide emissions, especially in high population density and rural regions. This study provides some useful recommendations for decision-makers regarding the development and deployment of PV energy technology in Botswana.
Keywords:
Botswana, solar energy potential, grid-connected, rooftop PV system, PV technology, RETScreen softwareDownloads
References
E. A. Al-Ammar, N. H. Malik, and M. Usman, "Application of using Hybrid Renewable Energy in Saudi Arabia," Engineering, Technology & Applied Science Research, vol. 1, no. 4, pp. 84–89, Aug. 2011. DOI: https://doi.org/10.48084/etasr.33
M. Hosenuzzaman, N. A. Rahim, J. Selvaraj, M. Hasanuzzaman, A. B. M. A. Malek, and A. Nahar, "Global prospects, progress, policies, and environmental impact of solar photovoltaic power generation," Renewable and Sustainable Energy Reviews, vol. 41, pp. 284–297, Jan. 2015. DOI: https://doi.org/10.1016/j.rser.2014.08.046
J. Khan and M. H. Arsalan, "Solar power technologies for sustainable electricity generation – A review," Renewable and Sustainable Energy Reviews, vol. 55, pp. 414–425, Mar. 2016. DOI: https://doi.org/10.1016/j.rser.2015.10.135
A. Shahsavari and M. Akbari, "Potential of solar energy in developing countries for reducing energy-related emissions," Renewable and Sustainable Energy Reviews, vol. 90, pp. 275–291, Jul. 2018. DOI: https://doi.org/10.1016/j.rser.2018.03.065
Y. Kassem, R. Al Zoubi, and H. Gokcekus, "The Possibility of Generating Electricity Using Small-Scale Wind Turbines and Solar Photovoltaic Systems for Households in Northern Cyprus: A Comparative Study," Environments, vol. 6, no. 4, Apr. 2019, Art. no. 47. DOI: https://doi.org/10.3390/environments6040047
R. Opoku, E. A. Adjei, D. K. Ahadzie, and K. A. Agyarko, "Energy efficiency, solar energy and cost saving opportunities in public tertiary institutions in developing countries: The case of KNUST, Ghana," Alexandria Engineering Journal, vol. 59, no. 1, pp. 417–428, Feb. 2020. DOI: https://doi.org/10.1016/j.aej.2020.01.011
A. Sagani, J. Mihelis, and V. Dedoussis, "Techno-economic analysis and life-cycle environmental impacts of small-scale building-integrated PV systems in Greece," Energy and Buildings, vol. 139, pp. 277–290, Mar. 2017. DOI: https://doi.org/10.1016/j.enbuild.2017.01.022
H. Camur, Y. Kassem, and E. Alessi, "A Techno-Economic Comparative Study of a Grid-Connected Residential Rooftop PV Panel: The Case Study of Nahr El-Bared, Lebanon," Engineering, Technology & Applied Science Research, vol. 11, no. 2, pp. 6956–6964, Apr. 2021. DOI: https://doi.org/10.48084/etasr.4078
M. R. Motsholapheko, J. E. Mbaiwa, D. L. Kgathi, and T. Oladiran, "Access to grid electricity in Botswana: Implications for energy transition in the Okavango Delta," PULA: Botswana Journal of African Studies, vol. 32, no. 1, pp. 141–160, 2018.
K. Mohammadi and A. Mostafaeipour, "Using different methods for comprehensive study of wind turbine utilization in Zarrineh, Iran," Energy Conversion and Management, vol. 65, pp. 463–470, Jan. 2013. DOI: https://doi.org/10.1016/j.enconman.2012.09.004
W. R. Mutoko and P. Mutoko, "Literature Review on the Solar Energy Potential for Botswana," European Scientific Journal ESJ, vol. 15, no. 34, pp. 27–43, Dec. 2019. DOI: https://doi.org/10.19044/esj.2019.v15n34p27
P. G. O. Anderson, "The role, reliability and limitations of solar photo-voltaic systems in Botswana," in Ninth International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.00EX441), Orlando, FL, USA, Oct. 2000, vol. 3, pp. 973–982.
K. Tlhalerwa and M. Mulalu, "Assessment of the concentrated solar power potential in Botswana," Renewable and Sustainable Energy Reviews, vol. 109, pp. 294–306, Jul. 2019. DOI: https://doi.org/10.1016/j.rser.2019.04.019
C. Ketlogetswe and T. H. Mothudi, "Solar home systems in Botswana—Opportunities and constraints," Renewable and Sustainable Energy Reviews, vol. 13, no. 6, pp. 1675–1678, Aug. 2009. DOI: https://doi.org/10.1016/j.rser.2008.08.007
E. Bakaya-Kyahurwa and M. T. Oladiran, "Performance of solar water heating systems in Botswana," Journal of Energy in Southern Africa, vol. 11, pp. 156–160, Feb. 2000.
K. P. Motladiile, T. Bader, A. Pugsley, M. Smyth, and J. Mondol, "Energy requirement analysis for the design of solar photovoltaic micro-grids in Botswana: a study of Jamataka village," in BIUST Research and Innovation Symposium, Palapye, Botswana, Jun. 2019.
K. P. Motladiile, T. Bader, A. Pugsley, M. Smyth, and J. Mondol, "Energy requirement analysis for the design of solar photovoltaic micro-grids in Botswana: a study of Jamataka village," in BIUST Research and Innovation Symposium, Palapye, Botswana, Jun. 2019, pp. 101–106.
K. Tsamaase, J. Sakala, E. Rakgati, I. Zibani, and K. Motshidisi, "Solar PV Module Voltage Output and Maximum Power Yearly profile using Simulink-based Model," in 10th International Conference on Renewable Energy Research and Application, Istanbul, Turkey, Sep. 2021, pp. 31–35. DOI: https://doi.org/10.1109/ICRERA52334.2021.9598794
A. Pugsley et al., "Solar electricity & hot water for dispersed off-grid households in Botswana: Demand-based sizing & Prototype testing initial results," in 2nd International Conference on Solar Technologies & Hybrid Mini Grids to improve energy access, Palma de Mallorca, Spain, Oct. 2018.
Y. Kassem, H. Camur, and R. A. F. Aateg, "Exploring Solar and Wind Energy as a Power Generation Source for Solving the Electricity Crisis in Libya," Energies, vol. 13, no. 14, Jan. 2020, Art. no. 3708. DOI: https://doi.org/10.3390/en13143708
S. Rehman, M. A. Ahmed, M. H. Mohamed, and F. A. Al-Sulaiman, "Feasibility study of the grid connected 10MW installed capacity PV power plants in Saudi Arabia," Renewable and Sustainable Energy Reviews, vol. 80, pp. 319–329, Dec. 2017. DOI: https://doi.org/10.1016/j.rser.2017.05.218
T. Nacer, A. Hamidat, O. Nadjemi, and M. Bey, "Feasibility study of grid connected photovoltaic system in family farms for electricity generation in rural areas," Renewable Energy, vol. 96, pp. 305–318, Oct. 2016. DOI: https://doi.org/10.1016/j.renene.2016.04.093
H. Maammeur, A. Hamidat, L. Loukarfi, M. Missoum, K. Abdeladim, and T. Nacer, "Performance investigation of grid-connected PV systems for family farms: case study of North-West of Algeria," Renewable and Sustainable Energy Reviews, vol. 78, pp. 1208–1220, Oct. 2017. DOI: https://doi.org/10.1016/j.rser.2017.05.004
J. K. Copper, A. B. Sproul, and S. Jarnason, "Photovoltaic (PV) performance modelling in the absence of onsite measured plane of array irradiance (POA) and module temperature," Renewable Energy, vol. 86, pp. 760–769, Feb. 2016. DOI: https://doi.org/10.1016/j.renene.2015.09.005
N. D. Nordin and H. Abdul Rahman, "A novel optimization method for designing stand alone photovoltaic system," Renewable Energy, vol. 89, pp. 706–715, Apr. 2016. DOI: https://doi.org/10.1016/j.renene.2015.12.001
A. V. da Rosa and J. C. Ordonez, Fundamentals of Renewable Energy Processes. Cambridge, MA, United States: Academic Press, 2021.
E. Tarigan, Djuwari, and F. D. Kartikasari, "Techno-economic Simulation of a Grid-connected PV System Design as Specifically Applied to Residential in Surabaya, Indonesia," Energy Procedia, vol. 65, pp. 90–99, Jan. 2015. DOI: https://doi.org/10.1016/j.egypro.2015.01.038
Y. Kassem, H. Gokcekus, and A. Guvensoy, "Techno-Economic Feasibility of Grid-Connected Solar PV System at Near East University Hospital, Northern Cyprus," Energies, vol. 14, no. 22, Jan. 2021, Art. no. 7627. DOI: https://doi.org/10.3390/en14227627
A. M. Ramli, A. Hiendro, K. Sedraoui, and S. Twaha, "Optimal sizing of grid-connected photovoltaic energy system in Saudi Arabia," Renewable Energy, vol. 75, pp. 489–495, Mar. 2015. DOI: https://doi.org/10.1016/j.renene.2014.10.028
R. Rabbani and M. Zeeshan, "Impact of policy changes on financial viability of wind power plants in Pakistan," Renewable Energy, vol. 193, pp. 789–806, Jun. 2022. DOI: https://doi.org/10.1016/j.renene.2022.05.049
A. B. Owolabi, B. E. K. Nsafon, J. W. Roh, D. Suh, and J.-S. Huh, "Validating the techno-economic and environmental sustainability of solar PV technology in Nigeria using RETScreen Experts to assess its viability," Sustainable Energy Technologies and Assessments, vol. 36, Dec. 2019, Art. no. 100542. DOI: https://doi.org/10.1016/j.seta.2019.100542
Y. Kassem, H. Camur, and O. a. M. Abughinda, "Solar Energy Potential and Feasibility Study of a 10MW Grid-connected Solar Plant in Libya," Engineering, Technology & Applied Science Research, vol. 10, no. 4, pp. 5358–5366, Aug. 2020. DOI: https://doi.org/10.48084/etasr.3607
M. Asad, F. I. Mahmood, I. Baffo, A. Mauro, and A. Petrillo, "The Cost Benefit Analysis of Commercial 100 MW Solar PV: The Plant Quaid-e-Azam Solar Power Pvt Ltd.," Sustainability, vol. 14, no. 5, Jan. 2022, Art. no . 2895. DOI: https://doi.org/10.3390/su14052895
J. D. Mondol, Y. G. Yohanis, and B. Norton, "The impact of array inclination and orientation on the performance of a grid-connected photovoltaic system," Renewable Energy, vol. 32, no. 1, pp. 118–140, Jan. 2007. DOI: https://doi.org/10.1016/j.renene.2006.05.006
M. Obeng, S. Gyamfi, N. S. Derkyi, A. T. Kabo-bah, and F. Peprah, "Technical and economic feasibility of a 50 MW grid-connected solar PV at UENR Nsoatre Campus," Journal of Cleaner Production, vol. 247, Feb. 2020, Art. no. 119159. DOI: https://doi.org/10.1016/j.jclepro.2019.119159
D. A. Quansah, M. S. Adaramola, G. K. Appiah, and I. A. Edwin, "Performance analysis of different grid-connected solar photovoltaic (PV) system technologies with combined capacity of 20 kW located in humid tropical climate," International Journal of Hydrogen Energy, vol. 42, no. 7, pp. 4626–4635, Feb. 2017. DOI: https://doi.org/10.1016/j.ijhydene.2016.10.119
S. S. Rashwan, A. M. Shaaban, and F. Al-Suliman, "A comparative study of a small-scale solar PV power plant in Saudi Arabia," Renewable and Sustainable Energy Reviews, vol. 80, pp. 313–318, Dec. 2017. DOI: https://doi.org/10.1016/j.rser.2017.05.233
A. H. Mirzahosseini and T. Taheri, "Environmental, technical and financial feasibility study of solar power plants by RETScreen, according to the targeting of energy subsidies in Iran," Renewable and Sustainable Energy Reviews, vol. 16, no. 5, pp. 2806–2811, Jun. 2012. DOI: https://doi.org/10.1016/j.rser.2012.01.066
Y. Kassem and M. H. A. Abdalla, "Modeling predictive suitability to identify the potential of wind and solar energy as a driver of sustainable development in the Red Sea state, Sudan," Environmental Science and Pollution Research, vol. 29, no. 29, pp. 44233–44254, Jun. 2022. DOI: https://doi.org/10.1007/s11356-022-19062-9
K. Mohammadi, M. Naderi, and M. Saghafifar, "Economic feasibility of developing grid-connected photovoltaic plants in the southern coast of Iran," Energy, vol. 156, pp. 17–31, Aug. 2018. DOI: https://doi.org/10.1016/j.energy.2018.05.065
A. Alahmer and S. Alsaqoor, "Energy efficient of Using Chilled Water System for Sustainable Health Care Facility Operating by Solar Photovoltaic Technology," Energy Procedia, vol. 156, pp. 65–71, Jan. 2019. DOI: https://doi.org/10.1016/j.egypro.2018.11.092
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