Mukhtar Mustapha, Adun Humphrey, Cai Dongsheng, Obiora Sandra, Taiwo Michael, Ni Ting, Ozsahin Dilber Uzun, Bamisile Olusola
School of Economics and Management, Guangdong University of Petrochemical Technology, Maoming, 525000, People's Republic of China.
Energy Systems Engineering Department, Cyprus International University, TRNC Mersin 10, Mersin, KKTC, Turkey.
Sci Rep. 2023 Jul 19;13(1):11643. doi: 10.1038/s41598-023-38642-4.
Recently, the International Energy Agency (IEA) released a comprehensive roadmap for the global energy sector to achieve net-zero emission by 2050. Considering the sizeable share of (Sub-Sahara) Africa in the global population, the attainment of global energy sector net-zero emission is practically impossible without a commitment from African countries. Therefore, it is important to study and analyze feasible/sustainable ways to solve the energy/electricity poverty in Africa. In this paper, the energy poverty in Africa and the high renewable energy (RE) potential are reviewed. Beyond this, the generation of electricity from the abundant RE potential in this region is analyzed in hourly timestep. This study is novel as it proposes a Sub-Sahara Africa (SSA) central grid as one of the fastest/feasible solutions to the energy poverty problem in this region. The integration of a sizeable share of electric vehicles with the proposed central grid is also analyzed. This study aims to determine the RE electricity generation capacities, economic costs, and supply strategies required to balance the projected future electricity demand in SSA. The analysis presented in this study is done considering 2030 and 2040 as the targeted years of implementation. EnergyPLAN simulation program is used to simulate/analyze the generation of electricity for the central grid. The review of the energy poverty in SSA showed that the electricity access of all the countries in this region is less than 100%. The analysis of the proposed central RE grid system is a viable and sustainable option, however, it requires strategic financial planning for its implementation. The cheapest investment cost from all the case scenarios in this study is $298 billion. Considering the use of a single RE technology, wind power systems implementation by 2030 and 2040 are the most feasible options as they have the least economic costs. Overall, the integration of the existing/fossil-fueled power systems with RE technologies for the proposed central grid will be the cheapest/easiest pathway as it requires the least economic costs. While this does not require the integration of storage systems, it will help the SSA countries reduce their electricity sector carbon emission by 56.6% and 61.8% by 2030 and 2040 respectively.
最近,国际能源署(IEA)发布了一份全面的全球能源领域路线图,以在2050年前实现净零排放。鉴于(撒哈拉以南)非洲在全球人口中所占的相当大比例,没有非洲国家的承诺,全球能源领域实现净零排放几乎是不可能的。因此,研究和分析解决非洲能源/电力贫困的可行/可持续方法非常重要。本文回顾了非洲的能源贫困和高可再生能源(RE)潜力。除此之外,还按小时时间步长分析了该地区丰富的可再生能源潜力所产生的电力。这项研究具有创新性,因为它提出了撒哈拉以南非洲(SSA)中央电网,作为解决该地区能源贫困问题的最快/可行解决方案之一。还分析了相当比例的电动汽车与拟议的中央电网的整合情况。本研究旨在确定实现撒哈拉以南非洲预计未来电力需求平衡所需的可再生能源发电能力、经济成本和供应策略。本研究中的分析是在将2030年和2040年作为目标实施年份的情况下进行的。使用EnergyPLAN模拟程序来模拟/分析中央电网的发电情况。对撒哈拉以南非洲能源贫困的审查表明,该地区所有国家的电力接入率均低于100%。对拟议的中央可再生能源电网系统的分析是一个可行且可持续的选择,然而,其实施需要进行战略财务规划。本研究所有案例情景中最便宜的投资成本为2980亿美元。考虑使用单一可再生能源技术,到2030年和2040年实施风力发电系统是最可行的选择,因为它们的经济成本最低。总体而言,将现有的/化石燃料发电系统与可再生能源技术整合到拟议的中央电网将是最便宜/最容易的途径,因为它所需的经济成本最低。虽然这不需要整合储能系统,但到2030年和2040年,它将分别帮助撒哈拉以南非洲国家将其电力部门的碳排放量减少56.6%和61.8%。