DOI: https://doi.org/10.14710/ijred.2023.49814

Comparison of the Grid and Off-Grid Hybrid Power Systems for Application in University Buildings in Nigeria

1Department of Mechanical Engineering, Enugu State University of Science and Technology, PMB 01660. Agbani, Enugu, Nigeria

2Department of Agricultural and Bioresource Engineering, Enugu State University of Science and Technology, PMB 01660. Agbani, Enugu State, Nigeria

Received: 26 Oct 2022; Revised: 28 Dec 2022; Accepted: 28 Jan 2023; Available online: 10 Feb 2023; Published: 15 Mar 2023.
Editor(s): H Hadiyanto
Open Access Copyright (c) 2023 The Author(s). Published by Centre of Biomass and Renewable Energy (CBIORE)
Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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Abstract
The Nigerian Universities rely on weak and unreliable fossil-based electric grids with diesel engine generators (DEG) as a backup. However, there is a potential to light up the campuses using power systems derived from primary renewable power systems (RPS) like wind turbine (WT) and solar photovoltaic (PV), that can be on or off-grid to improve the energy mix and duration reliably. This study presents the comparative analysis of the optimal hybrid grid and off-grid systems (OGS & OOGS) for serving the demand load of university buildings in four climatic regions of Nigeria. HOMER Pro is used to design and select the systems based on minimal net present cost (NPC) and cost of electricity (COE). The impact of a minimal renewable fraction of 95% on the optimal system architecture (OSA) and COE is studied for both grid and off-grid modes. Also, sensitivity analysis of the impact of key variables on performance for the sites is carried out. It is found that the OGS in the four regions is PV/Converter (Conv), while for the OOGS, it is PV/WT/DEG/battery (BB)/Conv except in Port Harcourt (PH), where it is PV/DEG/BB/Conv. The COE for the OGS in the Savana and monsoon climes of Enugu and PH are 10 and 19% more than that in the warm-semi arid climate zones of Maiduguri and Kano, which is approximately 0.09 $/kWh. The COE ($/kWh) for the OOGS is 0.21 in Maiduguri, 0.245 in Kano, 0.275 in Enugu and 0.338 in PH. An obligatory 95% RF changes the architecture and increases COE in all the locations except Maiduguri, with a slightly improved COE but higher NPC like other locations. It is established that the suggested hybrid system is beneficial and feasible for supplying more reliable and clean energy to educational buildings in different Nigerian locations.
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Keywords: Renewable energy; Electric load; Nigeria energy resources; Techno-economic analysis; Hybrid system

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Section: Original Research Article
Language : EN
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  1. Adewuyi, O. B., Kiptoo, M. K., Afolayan, A. F., Amara, T., Alawode, O. I., & Senjyu, T. (2020). Challenges and prospects of Nigeria’s sustainable energy transition with lessons from other countries’ experiences. Energy Reports, 6, 993–1009. https://doi.org/10.1016/J.EGYR.2020.04.022
  2. Al-Najjar, H., El-Khozondar, H. J., Pfeifer, C., & Al Afif, R. (2022). Hybrid grid-tie electrification analysis of bio-shared renewable energy systems for domestic application. Sustainable Cities and Society, 77, 103538. https://doi.org/10.1016/J.SCS.2021.103538
  3. Al Afif, R., Ayed, Y., & Maaitah, O. N. (2023). Feasibility and optimal sizing analysis of hybrid renewable energy systems: A case study of Al-Karak, Jordan. Renewable Energy, 204, 229–249. https://doi.org/10.1016/J.RENENE.2022.12.109
  4. Ali, M., Wazir, R., Imran, K., Ullah, K., Kashif Janjua, A., Ulasyar, A., Khattak, A., & Guerrero, J. M. (2021). Techno-economic assessment and sustainability impact of hybrid energy systems in Gilgit-Baltistan, Pakistan. Energy Reports, 7, 2546–2562. https://doi.org/10.1016/j.egyr.2021.04.036
  5. Alsafasfeh, Q. H. (2015). Performance and Feasibility Analysis of a Grid Interactive Large Scale Wind/PV Hybrid System based on Smart Grid Methodology Case Study South Part – Jordan. International Journal of Renewable Energy Development, 4(1), 39–47. https://ejournal.undip.ac.id/index.php/ijred/article/view/8179/pdf
  6. Amole, A. O., Oladipo, S., Olabode, O. E., Makinde, K. A., & Gbadega, P. (2023). Analysis of Grid/Solar Photovoltaic Power Generation for Improved Village Energy Supply: A Case of Ikose in Oyo State Nigeria. Renewable Energy Focus. https://doi.org/10.1016/j.ref.2023.01.002
  7. Asamoah, S. S., Gyamfi, S., Uba, F., & Mensah, G. S. (2022). Comparative assessment of a stand-alone and a grid-connected hybrid system for a community water supply system: A case study of Nankese community in the eastern region of Ghana. Scientific African, 17, e01331. https://doi.org/10.1016/J.SCIAF.2022.E01331
  8. Ayodele, T. R., Ogunjuyigbe, A. S. O., & Amusan, T. O. (2018). Techno-economic analysis of utilizing wind energy for water pumping in some selected communities of Oyo State, Nigeria. Renewable and Sustainable Energy Reviews. https://doi.org/10.1016/j.rser.2018.03.026
  9. Babatunde, O., Denwigwe, I., Oyebode, O., Ighravwe, D., Ohiaeri, A., & Babatunde, D. (2021). Assessing the use of hybrid renewable energy system with battery storage for power generation in a University in Nigeria. Environmental Science and Pollution Research 2021 29:3, 29(3), 4291–4310. https://doi.org/10.1007/S11356-021-15151-3
  10. Bani Hani, E. H., Sinaga, N., Khanmohammdi, S., & Diyoke, C. (2022). Assessment of a waste energy recovery (WER) unit for power and refrigeration generation: Advanced thermodynamic examination. Sustainable Energy Technologies and Assessments, 52, 102213. https://doi.org/10.1016/J.SETA.2022.102213
  11. Benti, N. E., Mekonnen, Y. S., & Asfaw, A. A. (2023). Combining green energy technologies to electrify rural community of Wollega, Western Ethiopia. Scientific African, 19, e01467. https://doi.org/10.1016/J.SCIAF.2022.E01467
  12. Çetinbaş, İ., Tamyürek, B., & Demirtaş, M. (2019). Design, Analysis and Optimization of a Hybrid Microgrid System Using HOMER Software: Eskişehir Osmangazi University Example. International Journal of Renewable Energy Development, 8(1), 65–79. https://ejournal.undip.ac.id/index.php/ijred/article/view/21772/pdf
  13. Das, B. K., Alotaibi, M. A., Das, P., Islam, M. S., Das, S. K., & Hossain, M. A. (2021). Feasibility and techno-economic analysis of stand-alone and grid-connected PV/Wind/Diesel/Batt hybrid energy system: A case study. Energy Strategy Reviews, 37, 100673. https://doi.org/10.1016/J.ESR.2021.100673
  14. Das, B. K., Hasan, M., & Rashid, F. (2021). Optimal sizing of a grid-independent PV/diesel/pump-hydro hybrid system: A case study in Bangladesh. Sustainable Energy Technologies and Assessments, 44, 100997. https://doi.org/10.1016/J.SETA.2021.100997
  15. Diyoke, C. (2019). A new approximate capacity factor method for matching wind turbines to a site: case study of Humber region, UK. International Journal of Energy and Environmental Engineering, 10(4). https://doi.org/10.1007/s40095-019-00320-5
  16. Diyoke, C., & Ngwaka, U. (2021). Thermodynamic analysis of a hybrid wind turbine and biomass gasifier for energy supply in a rural off-grid region of Nigeria. Energy Sources, Part A: Recovery, Utilization and Environmental Effects. https://doi.org/10.1080/15567036.2021.1922551
  17. Diyoke, C., Ngwaka, U., & Onah, T. O. (2021). Comparative assessment of a hybrid of gas turbine and biomass power system for sustainable multi-generation in Nigeria. Scientific African, 13, e00899. https://doi.org/10.1016/J.SCIAF.2021.E00899
  18. EEDC. (2022). MYTO Tariff for EEDC. https://www.enugudisco.com/index.php/extensions/tariff-information/new-tariff-effective-from-september-2020
  19. Esan, A. B., Agbetuyi, A. F., Oghorada, O., Ogbeide, K., Awelewa, A. A., & Afolabi, A. E. (2019). Reliability assessments of an islanded hybrid PV-diesel-battery system for a typical rural community in Nigeria. Heliyon, 5(5), e01632. https://doi.org/10.1016/J.HELIYON.2019.E01632
  20. Gabbar, H. A., & Siddique, A. B. (2023). Technical and economic evaluation of nuclear powered hybrid renewable energy system for fast charging station. Energy Conversion and Management: X, 17, 100342. https://doi.org/10.1016/J.ECMX.2022.100342
  21. Ghenai, C., & Bettayeb, M. (2019). Modelling and performance analysis of a stand-alone hybrid solar PV/Fuel Cell/Diesel Generator power system for university building. Energy, 171, 180–189. https://doi.org/10.1016/J.ENERGY.2019.01.019
  22. Hamisu Umar, N., Bora, B., Banerjee, C., Gupta, P., & Anjum, N. (2021). Performance and economic viability of the PV system in different climatic zones of Nigeria. Sustainable Energy Technologies and Assessments, 43, 100987. https://doi.org/10.1016/j.seta.2020.100987
  23. Hassane, A. I., Didane, D. H., Tahir, A. M., Mouangue, R. M., Tamba, J. G., & Hauglustaine, J. (2022). Comparative Analysis of Hybrid Renewable Energy Systems for Off-Grid Applications in Chad. International Journal of Renewable Energy Development, 11(1), 49–62. https://ejournal.undip.ac.id/index.php/ijred/article/view/39012/pdf
  24. He, Y., Guo, S., Dong, P., Wang, C., Huang, J., & Zhou, J. (2022). Techno-economic comparison of different hybrid energy storage systems for off-grid renewable energy applications based on a novel probabilistic reliability index. Applied Energy, 328, 120225. https://doi.org/10.1016/J.APENERGY.2022.120225
  25. HOMER. (2022). HOMER Pro User Manual. https://www.homerenergy.com/products/pro/docs/index.html
  26. Jahangir, M. H., Fakouriyan, S., Vaziri Rad, M. A., & Dehghan, H. (2020). Feasibility study of on/off grid large-scale PV/WT/WEC hybrid energy system in coastal cities: A case-based research. Renewable Energy, 162, 2075–2095. https://doi.org/10.1016/J.RENENE.2020.09.131
  27. JUMIA. (2022). Jumia Nigeria Online Shop. https://www.jumia.com.ng/
  28. Kumar, R., & Channi, H. K. (2022). A PV-Biomass off-grid hybrid renewable energy system (HRES) for rural electrification: Design, optimization and techno-economic-environmental analysis. Journal of Cleaner Production, 349, 131347. https://doi.org/10.1016/j.jclepro.2022.131347
  29. Li, J., Liu, P., & Li, Z. (2020). Optimal design and techno-economic analysis of a solar-wind-biomass off-grid hybrid power system for remote rural electrification: A case study of west China. Energy, 208, 118387. https://doi.org/10.1016/j.energy.2020.118387
  30. Muh, E., & Tabet, F. (2019). Comparative analysis of hybrid renewable energy systems for off-grid applications in Southern Cameroons. Renewable Energy, 135, 41–54. https://doi.org/10.1016/j.renene.2018.11.105
  31. Mulenga, E., Kabanshi, A., Mupeta, H., Ndiaye, M., Nyirenda, E., & Mulenga, K. (2023). Techno-economic analysis of off-grid PV-Diesel power generation system for rural electrification: A case study of Chilubi district in Zambia. Renewable Energy, 203, 601–611. https://doi.org/10.1016/J.RENENE.2022.12.112
  32. Nesamalar, J. J. D., Suruthi, S., Raja, S. C., & Tamilarasu, K. (2021). Techno-economic analysis of both on-grid and off-grid hybrid energy system with sensitivity analysis for an educational institution. Energy Conversion and Management, 239, 114188. https://doi.org/10.1016/J.ENCONMAN.2021.114188
  33. Netherlands Enterprise Agency. (2021). Solar Report Nigeria
  34. Odou, O. D. T., Bhandari, R., & Adamou, R. (2020). Hybrid off-grid renewable power system for sustainable rural electrification in Benin. Renewable Energy, 145, 1266–1279. https://doi.org/https://doi.org/10.1016/j.renene.2019.06.032
  35. Oladigbolu, J. O., Al-Turki, Y. A., & Olatomiwa, L. (2021). Comparative study and sensitivity analysis of a standalone hybrid energy system for electrification of rural healthcare facility in Nigeria. Alexandria Engineering Journal, 60(6), 5547–5565. https://doi.org/10.1016/J.AEJ.2021.04.042
  36. Oladigbolu, J. O., Ramli, M. A. M., & Al-Turki, Y. A. (2020). Optimal design of a hybrid pv solar/micro-hydro/diesel/battery energy system for a remote rural village under tropical climate conditions. Electronics (Switzerland), 9(9), 1–22. https://doi.org/10.3390/electronics9091491
  37. See, A. M. K., Mehranzamir, K., Rezania, S., Rahimi, N., Afrouzi, H. N., & Hassan, A. (2022). Techno-economic analysis of an off-grid hybrid system for a remote island in Malaysia: Malawali island, Sabah. Renewable and Sustainable Energy Transition, 2, 100040. https://doi.org/10.1016/J.RSET.2022.100040
  38. Tawfik, T. M., Badr, M. A., El-Kady, E. Y., & Abdellatif, O. E. (2018). Optimization and energy management of hybrid standalone energy system: a case study. Renewable Energy Focus, 25, 48–56. https://doi.org/10.1016/J.REF.2018.03.004
  39. Udeani, C., Jaramillo, P., & Williams, N. J. (2021). A techno-economic and environmental assessment of residential rooftop solar - Battery systems in grid-connected households in Lagos, Nigeria. Development Engineering, 6, 100069. https://doi.org/10.1016/J.DEVENG.2021.100069
  40. Vanguard. (2018). Need for urgent intervention in improving electricity supply in Nigerian Universities - Vanguard News. https://www.vanguardngr.com/2018/01/need-urgent-intervention-improving-electricity-supply-nigerian-universities/
  41. World Bank. (2021). Nigeria - Climatology . https://climateknowledgeportal.worldbank.org/country/nigeria/climate-data-historical
  42. Xe. (2022). Nigerian Nairas to US Dollars Exchange Rate. https://www.xe.com/currencyconverter/convert/?Amount=1&From=NGN&To=USD

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