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The role of biomass in sub-Saharan Africa's fully renewable power sector - The case of Ghana

机译:生物量在撒哈拉以南非洲完全可再生电力部门的作用 - 加纳的情况

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Sub-Saharan Africa is a region with a large population living without electricity. This study investigates the grid balancing role of bioenergy in a sub-Saharan Africa & rsquo;s fully renewable power sector to address the energy poverty challenge in the region, using Ghana as a case country. Two methods are employed: the bioenergy estimation method, for deriving Ghana & rsquo;s technical bioenergy potential, and the LUT model, for the power sector transition modelling. The Ghanaian bioenergy potential of 48.3 TWh is applied on the power sector using the LUT model to develop six alternative scenarios, emphasising on the role of bioenergy, greenhouse gas emissions costs, and climate change mitigation policies. The results of the Best Policy Scenario reveal that with an electrical efficiency of 37.2%, 18 TWh of electricity, which is 16.9% of Ghana & rsquo;s electricity demand by 2050, could be produced from bioenergy for grid balancing. Also, the levelised cost of electricity declines from 48.7 & euro;/MW in 2015 to 36.9-46.6 & euro;/MWh in 2050. Whereas the cost of electricity increases to 76.4 & euro;/MWh in the Current Policy Scenario without greenhouse gas emissions costs. The results show the viability of a relatively cheap and bioenergy balanced sustainable renewable power system for the sub-Saharan African region.(c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
机译:撒哈拉以南非洲是一个没有电力的人口大的地区。本研究调查了生物能量在撒哈拉以南非洲和rsquo的网格平衡作用,以满足该地区的能源贫困挑战,以加纳为例。采用两种方法:生物能源估算方法,用于推导加纳和RSQUO; S技术生物能源电位和LUT模型,用于电力扇区转换建模。利用LUT模型应用了48.3 TWH的加纳生物能源潜力,以开发六种替代方案,强调生物能源,温室气体排放成本和气候变化缓解政策的作用。最佳政策情景的结果表明,电效率为37.2%,电力18吨,为2050年的加纳电力需求为16.9%,可以从生物能量进行电网平衡。此外,2015年的48.7和欧元的电力均力下降到2015年至36.9-46.6和欧元; / MWH在2050年。而电力成本增加到76.4欧元; / MWH在没有温室气体的当前政策情景中。排放费用。结果表明,对撒哈拉以南非洲地区的相对便宜和生物能量平衡可持续的可再生能源系统的可行性。(c)提交人2021年。由elsevier有限公司发布这是CC下的开放式访问文章(http://creativecommons.org/licenses/by/4.0/)。

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