Publications
RELEVANT PUBLICATIONS
[1] Wetajega, S.D., Ayetor, G.K., Kadri, S.M., Opoku, R., Effah, F.B., Rosner, P. and Sekyere, C.K. (2026) 'Assessing the Technical Readiness of Ghana's Distribution Grid for Electric Vehicle Integration: A Case Study Revealing Transformer Overload and Harmonic Violations', Results in Engineering, p. 110922. doi:10.1016/j.rineng.2026.110922.
[2] Rosner, P., Gartner, L.A., Ayetor, G.K., Götz, K. and Lienkamp, M. (2026) 'Get the biggest fish to fry: Assessing commercial operators' barriers towards electric vehicle adoption in urban and rural sub-Saharan Africa', African Transport Studies, 4, p. 100069. doi:10.1016/j.aftran.2025.100069.
[3] Ayetor, G.K., Ativor, A., Kesse, M.A., Tawiah, P.O., Diouf, B., Opare, S., Agyekum, E.B. and Andoh, P.Y. (2025) 'Realistic assessment of electric vehicle policies in Africa: a case study of Ghana', Case Studies on Transport Policy, 21, p. 101500.
[4] Ayetor, G.K., Dugbenu, J., Duah, A.A., Adewe, C., Agyei, E.A., Affenyi, E., Peasah, G.M. and Nartey, T.T. (2025) 'Assessing fuel economy and tailpipe emissions of road vehicles in Ghana', African Transport Studies, 3, p. 100040.
[5] Gautam, P., Pode, G., Pode, R., Ayetor, G.K. and Diouf, B. (2024) 'Depreciation in the Electric Vehicle Transition: Sustainability of the Second-Hand Electric Vehicle Market', Vehicles, 6, pp. 2044-2074. doi:10.3390/vehicles6040101.
[6] Boahen, S., Alhassan, I.A., Amoabeng, K.O., Choi, J.M., Sekyere, C.K.K. and Ayetor, G.K.K. (2026) 'Experimental analysis and control of secondary fluid flow rate in a cascade dual-purpose heat pump', Applied Thermal Engineering, 292(Part 2), p. 130399. doi:10.1016/j.applthermaleng.2026.130399.
[7] Agyekum, E.B., Odoi-Yorke, F., Abbey, A.A. and Ayetor, G.K. (2024) 'A review of the trends, evolution, and future research prospects of hydrogen fuel cells – A focus on vehicles', International Journal of Hydrogen Energy, 72, pp. 918-939.
[8] Ka, I., Djité, A.N., Chimére Diop, S.A., Ayetor, G.K. and Diouf, B. (2026) 'The Electric Vehicle Transition in Emerging Economies', Vehicles, 8(2), p. 37. doi:10.3390/vehicles8020037.
[9] Aidam, G.S.K., Opoku, R., Davis, F., Adjei, E.A., Oppong, D.K., Sekyere, C.K.K., Ayetor, G.K.K. and Koueviya, P. (2026) 'A multi-modal assessment of electric mobility for sustainable intercity transport in emerging economies: A case of Ghana', African Transport Studies, 4, p. 100093.
[10] Quayson-Sackey, E., Nyantekyi-Bwakye, B. and Ayetor, G.K. (2024) 'Technological advancements for anti-icing and de-icing offshore wind turbine blades', Cold Regions Science and Technology, p. 104400. doi:10.1016/j.coldregions.2024.104400.
[11] Ayetor, G., Mashele, J. and Mbonigaba, I. (2023) 'The progress toward the transition to electromobility in Africa', Renewable and Sustainable Energy Reviews, 183, p. 113533.
[12] Ayetor, G.K., Mbonigaba, I. and Mashele, J. (2023) 'Feasibility of Electric Two and Three-Wheelers in Africa', Green Energy and Intelligent Transportation, p. 100106.
[13] Ayetor, G.K., Nyarko, F.K. and Andoh, P.Y. (2023) 'Achieving Cost Parity for Battery Electric Vehicles in Africa: a case study of Ghana', Transportation Letters, pp. 1-13.
[14] Boahen, S., Ofori-Amanfo, K.B., Amoabeng, K.O., Ayetor, G., Obeng, G.Y., Opoku, R. and Dzebre, D.E. (2023) 'Fault detection model for a variable speed heat pump', Journal of Engineering and Applied Science, 70(1), pp. 1-18.
[15] Adjei, F., Sperling, D., Atia-Abugbilla, I., Anokye, A., Appiah, J., Ayetor, G. and Severengiz, S. (2023) 'Converted and Shared Light Electric Vehicles in Ghana: A Technical and Economic Analysis Based on Converted ICE Motorbikes and e-mopeds', in *Manufacturing Driving Circular Economy: Proceedings of the 18th Global Conference on Sustainable Manufacturing, October 5-7, 2022, Berlin*.
[16] Tettehfio, E.O., Andoh, P.Y., Atombo, C., Sekyere, C.K. and Ayetor, G.K. (2024) 'Assessing the Safety of Auto-Rickshaws Used as Public Transport in Ghana', Advanced Engineering Forum, Trans Tech Publ, pp. 63-82.
[17] Ayetor, G.K. (2022) 'Towards Net Zero Electric Vehicle Emissions in Africa', Current Sustainable/Renewable Energy Reports, pp. 1-7.
[18] Ayetor, G.K., Dzebre, D.K.E., Mensah, L.D., Boahen, S., Amoabeng, K.O. and Tay, G.F.K. (2022) 'Comparing the Cost per Mile of Electric Vehicles and Internal Combustion Engine Vehicles in Ghana', Transportation Research Record, p. 03611981221135804.
[19] Opoku, R., Ahunu, B., Ayetor, G.K., Ayitey, D.T., Uba, F., Asiedu, N. and Obeng, G.Y. (2023) 'Unlocking the potential of solar electric vehicles for post-COVID recovery and growth in the transport sector in Ghana', Scientific African, p. e01583.
[20] Adjei, E., Amoabeng, K., Ayetor, G., Obeng, G., Quansah, D. and Adusei, J. (2022) 'Assessing the impact of hydro energy project on poverty alleviation: The case of Bui Dam in Ghana', Energy Policy, 170, p. 113227.
[21] Ayetor, G.K., Sunnu, A.K., Quansah, D.A. and Adjei, E.A. (2022) 'The cost of a transition to electric vehicles in Africa: A case study of Ghana', Case Studies on Transport Policy, 10(1), pp. 388-395.
[22] Liu, H., Kaewunruen, S., Ahmad, W.N.K., Shamsuddin, A., Ayetor, G.K., Hansson, J. and Bräunl, T. (2021) 'A net-zero future for freight', One Earth, 4(11), pp. 1517-1519.
[23] Ayetor, G.K., Mbonigaba, I., Mashele, J. and Sunnu, A. (2021) 'Investigating the state of road vehicle emissions in Africa: A case study of Ghana and Rwanda', Transportation Research Interdisciplinary Perspectives, 11, p. 100409.
[24] Ayetor, G.K., Sunnu, A.K., Mbonigaba, I. and Mashele, J. (2021) 'Vehicle regulations in Africa: Impact on used vehicle import and new vehicle sales', Transportation Research Interdisciplinary Perspectives, 10, p. 100384.
[25] Ayetor, G.K., Quansah, D.A. and Adjei, E.A. (2020) 'Towards zero vehicle emissions in Africa: A case study of Ghana', Energy Policy, 143, p. 111606.
[26] Ayetor, G.K., Sunnu, A.K., Mashele, J. and Mbonigaba, I. (2021) 'Impact of replacing ICE bus fleet with electric bus fleet in Africa: A lifetime assessment', Energy, 221, p. 119852.
[27] Hatsu, J.K., Sunnu, A.K., Ayetor, G.K. and Takyi, G. (2021) 'Investigation of shell mold casting technique in Ghana using indigenous materials', Scientific African, p. e01052. doi:10.1016/j.sciaf.2021.e01052.
[28] Sunnu, A., Adu-Poku, K.A. and Ayetor, G.K. (2021) 'Production and characterization of charred briquettes from various agricultural waste', Combustion Science and Technology. doi:10.1080/00102202.2021.1977803.
[29] Andoh, P.Y., Tachie, K., Asante, K., Ayetor, G.K. and Amoabeng, K.O. (2021) 'Fabrication and Testing of a Low-Cost Wind Turbine Blade using Bamboo Reinforced Recycled Plastic', Journal of Applied Engineering and Technological Science (JAETS), 2(2), pp. 125-138.
[30] Kesse, M.A., Buah, E., Handroos, H. and Ayetor, G.K. (2020) 'Development of an artificial intelligence-powered TIG welding algorithm for the prediction of bead geometry for TIG welding processes using hybrid deep learning', Metals, 10(4), p. 451. doi:10.3390/met10040451.
[31] Ayetor, G.K., Sunnu, A.K. and Kesse, M. (2019) 'Engine performance and emissions of fuel produced from palm kernel oil', Biofuels, pp. 1-7.
[32] Andoh, P.Y., Ayetor, G.K., Amoabeng, K.O. and Sackey, M.N.S. (2022) 'Assessment of Automobile Engines Rebuilt at Local Artisan Workshops in Ghana', Journal of Applied Engineering and Technological Science (JAETS), 3(2), pp. 53-66.
[33] Sunnu, A.K., Ayetor, G.K. and Gaye, J.M. (2019) 'Straight vegetable oil fuel performance and exhaust emissions under turbocharged and naturally aspirated conditions', Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, pp. 1-11.
[34] Ayetor, G.K., Sunnu, A. and Gyamfi, G. (2017) 'Idling effect of injection pressure and timing and their effects on performance and emissions of a compression ignition engine fuelled with biodiesel', Biofuels, 8(3), pp. 333-338.
[35] Ayetor, G.K., Duodu, E. and Abban, J. (2016) 'Effects of Energy Storage Systems on Fuel Economy of Hybrid-Electric Vehicles', International Journal of Technology and Management Research, 1(5), pp. 14-23.
[36] Ayetor, G.K., Sunnu, A. and Parbey, J. (2015) 'Effect of biodiesel production parameters on viscosity and yield of methyl esters: Jatropha curcas, Elaeis guineensis, and Cocos nucifera', Alexandria Engineering Journal, 54(4), pp. 1285-1290.
[37] Ayetor, G.K., Sunnu, A. and Parbey, J. (2015) 'Performance evaluation of biodiesel-biodiesel blends in a dedicated CIDI engine', International Journal of Renewable Energy Research (IJRER), 5(1), pp. 168-176.
[38] Ayetor, G.K. and Sunnu, A.K. (2015) 'Engine performance of biodiesel-biodiesel blends at varying engine speeds', African Journal of Science, Technology, Innovation and Development, 7(6), pp. 500-508.
[39] Sunnu, A., Ayetor, G.K. and Parbey, J. (2015) 'Effect of injection pressure and timing on biodiesel fuelled engine', Journal of Automobile Engineering (jaue), 5(1), pp. 1-18.
[40] Parbey, J., Asiedu, N., Ayetor, G.K., Tachie, K. and Adjei, E. (2014) 'Bioethanol potential from oil palm sap in Ghana', International Journal of Renewable Energy Research (IJRER), 4(1), pp. 54-60.
[41] Ayetor, G.K., Gyamfi, G.B. and Larnor, E.T. (2013) 'Drive Cycle Performance of Hybrid-Electric Vehicles', International Journal of Technology and Management Research, 1(2), pp. 1-6.
[42] Ayetor, G.K., Parbey, J. and Osei, G. (2016) 'Durability studies of an indirect diesel engine run on raw palm kernel oil', International Journal of Technology and Management Research, 1(5), pp. 42-50.
Selected Project Reports
1. Market Opportunity Study On Electric Vehicle Charging Stations In Ghana - UNDP
2. Ghana Electric Vehicle Baseline Survey 2022 - Energy Commission
3. National E-Mobility Roadmap for Sao Tome & Principe - UNIDO
4. Fuel Economy Roadmap for Sao Tome & Principe - UNIDO
5. Enhancing Ghanas E-Mobility Industry – Opportunities for Green SME’s and Essential Policy Reforms - Ghana Climate Innovation Centre.