Renewable energy consumption in Africa: the role of economic well-being and economic freedom

Amoah, Anthony; Kwablah, Edmund; Korle, Kofi; Offei, Daniel

doi:10.1186/s13705-020-00264-3

Cited by 58 publications

(41 citation statements)

References 38 publications

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“…The electrical and thermal efficiency of PV/T collector for the current study is illustrated for comparison with Evola's study in figures 5(a) and (b). study [27] According to the figure (5), the trend of changes in electrical and thermal efficiency of collectors for both study is same and it can be concluded that the extracted data from TRNSYS, is reasonable and also acceptable.…”

Section: -2-validation Of Modelmentioning

confidence: 80%

“…The more increase of thermal conductivity, the more heat flux transfers from the PV module to the working fluid. The figure of the thermal efficiency of PV/T solar collector is shown in figure (6). According to the figure (6), the ascending trend of thermal efficiency over the nanofluid's concentration is repeated for all flowrates and months.…”

Section: -2-thermal Efficiencymentioning

confidence: 98%

“…The figure of the thermal efficiency of PV/T solar collector is shown in figure (6). According to the figure (6), the ascending trend of thermal efficiency over the nanofluid's concentration is repeated for all flowrates and months. Furthermore, a parabolic behavior can be detected by the surge of flowrates.…”

Section: -2-thermal Efficiencymentioning

confidence: 98%

“…Thus, the results of the tilt angle effect are studied for this case, only. The sum of output electrical energy in all months, is reported in table (5). As it can be found in table (5), changing the tilt angle of collector changes the amount of output electrical energy.…”

Section: = ± 15°mentioning

confidence: 98%

“…Therefore, the enhancement of thermal conductivity engendering to more heat is dissipated from the photovoltaic panel and more energy is obtained by working fluid. Also, in recent years, with the advancement of nanotechnology, numerous researchers have studied the use of nanofluids to improve heat transfer in engineering applications [5][6][7][8][9][10]. Thus, by application of the properties of nanofluids in PV/T solar collectors, the performance of this solar system can be improved.…”

Section: -Introductionmentioning

confidence: 99%

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The Impact of Tilt Angle and Flowrate on Performance of Nanofluid Based Photovoltaic/ Thermal (PV/T) Solar Collectors

Naderi

Gazori²,

Bozegi³

2020

Preprint

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Background Today, by the arrival of new sustainable energy technology, the provision of energy for the global population has turned into a significant issue for societies. Meanwhile, photovoltaic/thermal (PV/T) solar collectors, as one of the most advanced types to produce electricity and heat simultaneously, can be applied with nanofluid as the working fluid. Methods In this research, PVP coated silver nanofluid was prepared in three volume concentrations being 250, 500 and 1000 ppm by two-step method to determine the stability and thermal conductivity, experimentally. Then, the performance of PV/T solar collector is analyzed by TRNSYS software to study electrical and thermal efficiency and also output electrical and thermal energy in different months, flowrates (25, 50, 75, 100, 150 and 200 l/h) and nanofluid’s concentration. Results Based on the results, the optimum flowrate and nanofluid’s concentration are obtained 50 l/h and 1000 ppm PVP coated silver nanofluid. At last, the effect of tilt angle on the output thermal and electrical energy is determined. According to the results, by changing tilt angle in different months, the performance of PV/T solar collector can be ameliorated. Conclusion This paper can be heeded as a novel approach to overcome the lack of solar radiation in winters by improving the performance of PV/T solar collectors.

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Section: -2-validation Of Modelmentioning

confidence: 80%

Section: -2-thermal Efficiencymentioning

confidence: 98%

Section: -2-thermal Efficiencymentioning

confidence: 98%

Section: = ± 15°mentioning

confidence: 98%

Section: -Introductionmentioning

confidence: 99%

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The Impact of Tilt Angle and Flowrate on Performance of Nanofluid Based Photovoltaic/ Thermal (PV/T) Solar Collectors

Naderi

Gazori²,

Bozegi³

2020

Preprint

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Decision analysis related to solar farm investments based on analysis hierarchical process and fuzzy AHP for sustainable energy production

Azmi

Amar

Chenal

et al. 2022

Intl J of Energy Research

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Renewable solar energy is one of the most preferable clean energy sources with no environmental impacts. The Marrakech Safi region (Moroccan context), with its arid and semi-arid climate, can ensure sustainable energy productionoriented for a green economy. This paper aims to perform a decision analysis using the analysis hierarchical process (AHP) and Fuzzy AHP to identify the suitable areas for potential solar farms. The adopted approaches used 15 factors to produce suitability maps. AHP and Fuzzy AHP were used to minimize the subjectivity related to the factor notation, and to improve the result of the models. The factors' weights were reevaluated using the sensitivity analysis to assess their influence by comparing the theoretical and the effective weights.

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Do institutional quality and its threshold matter in the sensitivity of the renewable energy transition to financial development? New empirical perspectives

Olaniyi,

Al‐Faryan,

Ogbaro

2023

Int. J Fin Econ

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The transition to renewable energy is critical for environmental sustainability, consistent with sustainable development goals (SDGs) 7, 8, 11, 12, and 13 of the United Nations Development Programme (UNDP). Scholars have identified financial development and institutional quality as significant factors determining the renewable energy transition in developing countries. This study opines that the efficiency of the financial system in supporting and providing the substantial financial implications that a switch to renewable energy necessitates depends on the quality of the institutional framework. Weak institutions in developing countries produce loopholes and inherent flaws in the financial system that facilitate corruption and opportunism, ultimately promoting dirty energy usage and technology at the expense of renewable energy. This process suggests that the interaction between financial development and institutions can either accelerate or impede the transition to renewable energy, depending on an economy's institutional architecture. Considering Africa's enormous renewable energy resources, previous research has overlooked the implications of the interplay between institutional quality and financial development in spurring Africa's transition to renewable energy. Thus, this study looks at the role of institutions in moderating the relationship between financial development and renewable energy in Africa from 1990 to 2019, using first‐ and second‐generation estimators to capture econometrics' pitfalls such as endogeneity, cross‐sectional dependence, and heterogeneity inherent in the panel dataset. This study departs from previous research in that it uses a dynamic panel threshold to determine the threshold of institutions beyond which financial development is stimulated to spur Africa's transition to renewable energy. The findings show that institutions create loopholes that allow rent‐seeking, opportunism, and sharp practices in the African financial system. These inherent flaws divert financial resources to support dirty energy and undermine the financial sector's ability to support a renewable energy transition on the continent. Also, the findings from the threshold of institutions affirm that African countries operate predominantly below the threshold of institutions, over which institutions enable financial development to expedite the continent's transition to renewable energy. The study suggests that institutional quality is essential in the relationship between financial development and Africa's shift to renewable energy. The findings' policy implications are discussed and outlined.

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Renewable energy consumption in Africa: the role of economic well-being and economic freedom

Cited by 58 publications

References 38 publications

The Impact of Tilt Angle and Flowrate on Performance of Nanofluid Based Photovoltaic/ Thermal (PV/T) Solar Collectors

The Impact of Tilt Angle and Flowrate on Performance of Nanofluid Based Photovoltaic/ Thermal (PV/T) Solar Collectors

Decision analysis related to solar farm investments based on analysis hierarchical process and fuzzy AHP for sustainable energy production

Do institutional quality and its threshold matter in the sensitivity of the renewable energy transition to financial development? New empirical perspectives

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