scholarly journals Analyzing of a Photovoltaic/Wind/Biogas/Pumped-Hydro Off-Grid Hybrid System for Rural Electrification in Sub-Saharan Africa—Case study of Djoundé in Northern Cameroon

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2644 ◽  
Author(s):  
Nasser Yimen ◽  
Oumarou Hamandjoda ◽  
Lucien Meva’a ◽  
Benoit Ndzana ◽  
Jean Nganhou
Keyword(s):  
Agricultural Sector ◽  
Energy System ◽  
Sub Saharan Africa ◽  
Rural Electrification ◽  
Analysis Tool ◽  
Hybrid Energy ◽  
Cost Of Energy ◽  
Northern Cameroon ◽  
The Face ◽  
Sub Saharan

Traditional electrification methods, including grid extension and stand-alone diesel generators, have shown limitations to sustainability in the face of rural electrification challenges in sub-Saharan Africa (SSA), where electrification rates remain the lowest in the world. This study aims at performing a techno-economic analysis and optimization of a pumped-hydro energy storage based 100%-renewable off-grid hybrid energy system for the electrification of Djoundé, which is a small village in northern Cameroon. Hybrid Optimization of Multiple Energy Resources (HOMER) software was used as an analysis tool, and the resulting optimal system architecture included an 81.8 kW PV array and a 15 kW biogas generator, with a cost of energy (COE) and total net present cost (NPC) of €0.256/kWh and €370,426, respectively. The system showed promise given the upcoming decrease in installation cost of photovoltaic systems. It will be viable in parts of SSA region but, significant investment subsidies will be needed elsewhere. The originality of this study can be emphasized in three points: (1) the modelling with the recently introduced pumped-hydro component of HOMER; (2) broadening sensitivity analysis applications to address practical issues related to hybrid renewable energy systems (HRES); and, (3) consideration of the agricultural sector and seasonal variation in the assessment of the electricity demand in an area of SSA.

scholarly journals Accessibility and Sustainability of Hybrid Energy Systems for a Cement Factory in Oman

2020 ◽  
Vol 13 (1) ◽  
pp. 93
Author(s):  
Wesam H. Beitelmal ◽  
Paul C. Okonkwo ◽  
Fadhil Al Housni ◽  
Wael Alruqi ◽  
Omar Alruwaythi
Keyword(s):  
Functional Limitations ◽  
Energy Systems ◽  
Energy System ◽  
Electricity Production ◽  
Diesel Generator ◽  
Hybrid Energy ◽  
Electric System ◽  
Cement Factory ◽  
Hybrid Energy Systems ◽  
Cost Of Energy

Diesel generators are being used as a source of electricity in different parts of the world. Because of the significant expense in diesels cost and the requirement for a greener domain, such electric generating systems appear not to be efficient and environmentally friendly and should be tended to. This paper explores the attainability of utilizing a sustainable power source based on a cross-breed electric system in the cement factory in Salalah, Oman. The HOMER software that breaks down the system setup was utilized to examine the application and functional limitations of each hybridized plan. The result showed that a renewable-energy (RE)-based system has a lower cost of energy (COE) and net present cost (NPC) compared to diesel generator-based hybrid electric and standalone systems. Although the two pure renewable hybrid energy systems considered in this study displayed evidence of no emissions, lower NPC and COE values are observed in the photovoltaic/battery (PV/B) hybrid energy system compared with photovoltaic/wind turbine/battery (PV/WT/B). The PV/WT/B and PV/B systems have higher electricity production and low NPC and COE values. Moreover, the PV/B has the highest return on investment (ROI) and internal rate of return (IRR), making the system the most economically viable and adjudged to be a better candidate for rural community electrification demands.

scholarly journals Maintaining paediatric cardiac services during the COVID-19 pandemic in a developing country in sub-Saharan Africa: guidelines for a “scale up” in the face of a global “scale down”

2020 ◽  
Vol 30 (11) ◽  
pp. 1588-1594
Author(s):  
Ogochukwu J. Sokunbi ◽  
Ogadinma Mgbajah ◽  
Augustine Olugbemi ◽  
Bassey O. Udom ◽  
Ariyo Idowu ◽  
...  
Keyword(s):  
Scale Up ◽  
Global Scale ◽  
International Travel ◽  
Sub Saharan Africa ◽  
African Continent ◽  
Tertiary Centre ◽  
The Face ◽  
Scale Down ◽  
Sub Saharan ◽  
International Experts

AbstractThe COVID-19 pandemic is currently ravaging the globe and the African continent is not left out. While the direct effects of the pandemic in regard to morbidity and mortality appear to be more significant in the developed world, the indirect harmful effects on already insufficient healthcare infrastructure on the African continent would in the long term be more detrimental to the populace. Women and children form a significant vulnerable population in underserved areas such as the sub-Saharan region, and expectedly will experience the disadvantages of limited healthcare coverage which is a major fall out of the pandemic. Paediatric cardiac services that are already sparse in various sub-Saharan countries are not left out of this downsizing. Restrictions on international travel for patients out of the continent to seek medical care and for international experts into the continent for regular mission programmes leave few options for children with cardiac defects to get the much-needed care.There is a need for a region-adapted guideline to scale-up services to cater for more children with congenital heart disease (CHD) while providing a safe environment for healthcare workers, patients, and their caregivers. This article outlines measures adapted to maintain paediatric cardiac care in a sub-Saharan tertiary centre in Nigeria during the COVID-19 pandemic and will serve as a guide for other institutions in the region who will inadvertently need to provide these services as the demand increases.

Turkey’s Sub-imperialism in Sub-Saharan Africa

2021 ◽  
pp. 048661342110039
Author(s):  
Gönenç Uysal
Keyword(s):  
Foreign Policy ◽  
Economic Crisis ◽  
Jel Classification ◽  
Sub Saharan Africa ◽  
Gulf Countries ◽  
Political Roles ◽  
The Face ◽  
Sub Saharan ◽  
Military Relations ◽  
Emerging Powers

The growing economic and political roles of the so-called emerging powers in sub-Saharan Africa have attracted particular attention following the apparent decline of Western powers in the face of the global economic crisis of 2007–2008. The AKP’s “proactive” foreign policy has manifested Turkey’s burgeoning role in the region. This paper draws upon Marxism to explore the diffusion of Turkish capital and the enhancement of military relations in the region in harmony and in contradistinction with Western and Gulf countries. It discusses the AKP’s proactive foreign policy vis-à-vis sub-Saharan Africa as a particular sociohistorical form of sub-imperialism that is characterized by and reproduces economic and geopolitical rivalries and alliances among Turkey and Western and Gulf countries. JEL Classification: F5, P1, O1

scholarly journals Prospects for sustainable intensification of soybean production in sub-Saharan Africa

2020 ◽  
Vol 15 (4) ◽  
pp. 365-371
Author(s):  
Deepayan Debnath ◽  
◽  
Suresh Babu ◽  
Keyword(s):  
Agricultural Sector ◽  
Sustainable Intensification ◽  
Sub Saharan Africa ◽  
Yield Gap ◽  
Livestock Industry ◽  
Soybean Yield ◽  
Soybean Production ◽  
Soy Meal ◽  
Sub Saharan ◽  
Ssa Countries

There is a significant soybean yield gap in sub-Saharan African (SSA) countries. Sustainable intensification of the agricultural sector to reduce such a yield gap is important. Increasing soybean productivity can meet the growing demand for food and feed when complemented with higher soy meal demand by the local livestock industry. This study performs an ex-ante economic analysis to determine the effect of higher soybean production on trade and land use within SSA countries. We find that increasing soybean yield by 50% can increase the total returns from soybean production by 186 million LC (local currency) in Ethiopia and 36 billion LC in Nigeria. We show that soybean yield growth alone is enough to boost soy oil production, as the crushing of the beans produces 18% oil and 79% meal. While increasing productivity may lead to freeing land to produce high-valued cash crops, investors will be reluctant to invest in the crushing facilities in the absence of soy meal demand by the livestock industry. Therefore, policymakers need to establish collaboration between development organisations, private companies, farmers and researchers to achieve this transformation and thereby raise agricultural productivity.

Le Bagne

2020 ◽  
pp. 217-226
Author(s):  
Charles Forsdick
Keyword(s):  
French Guiana ◽  
New Caledonia ◽  
Sub Saharan Africa ◽  
Penal Colony ◽  
Penal Colonies ◽  
The Face ◽  
The Rich ◽  
Sub Saharan ◽  
Key Sites ◽  
Postcolonial Politics

The bagne retains an ambiguous status as a lieu de mémoire, in part because of its predominantly extra-metropolitan location, in part because most understandings of the institution rely heavily on representations freighted via literature, film and graphic fiction. In French Guiana and New Caledonia, the bagne was nevertheless the major driver in the attempted mise en valeur of those colonies in the face of varying degrees of resistance to settlement. Moreover, France’s carceral archipelago extended beyond those key sites to include penal colonies in North and Sub-Saharan Africa as well as Indochina. The essay scrutinizes the rich body of material that has served as a vehicle for memories of the institution, but uses a focus on contemporary memorial practices in French Guiana and New Caledonia to suggest a distinct divergence in forms of interpretation, especially regarding the place of the penal colony in colonial expansionism. Although until recent years the bagne has often acted as more of a postcolonial lieu d’oubli, in a context of complex postcolonial politics and of growing interest in penal heritage its status as a lieu de mémoire is becoming increasingly apparent.

scholarly journals Proposing a Paradigm Shift in Rural Electrification Investments in Sub-Saharan Africa through Agriculture

2020 ◽  
Vol 12 (8) ◽  
pp. 3096 ◽  
Author(s):  
George Kyriakarakos ◽  
Athanasios T. Balafoutis ◽  
Dionysis Bochtis
Keyword(s):  
Rural Areas ◽  
Business Models ◽  
Sub Saharan Africa ◽  
Rural Electrification ◽  
Agricultural Cooperatives ◽  
New Approach ◽  
Sub Saharan ◽  
The Cost ◽  
Cross Subsidization

Almost one billion people in the world still do not have access to electricity. Most of them live in rural areas of the developing world. Access to electricity in the rural areas of Sub-Saharan Africa is only 28%, roughly 600 million people. The financing of rural electrification is challenging and, in order to accomplish higher private sector investments, new innovative business models have to be developed. In this paper, a new approach in the financing of microgrid electrification activities is proposed and investigated. In this approach, agriculture related businesses take the lead in the electrification activities of the surrounding communities. It is shown that the high cost of rural electrification can be met through the increased value of locally produced products, and cross-subsidization can take place in order to decrease the cost of household electrification. The approach is implemented in a case study in Rwanda, through which the possibility of local agricultural cooperatives leading electrification activities is demonstrated.

Modelling and management of smart microgrid for rural electrification in sub-saharan Africa: The case of Nigeria

2019 ◽  
Vol 32 (10) ◽  
pp. 106672 ◽  
Author(s):  
Eunice C. Nnaji ◽  
Donald Adgidzi ◽  
Michael O. Dioha ◽  
Daniel R.E. Ewim ◽  
Zhongjie Huan
Keyword(s):  
Sub Saharan Africa ◽  
Rural Electrification ◽  
Sub Saharan
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