Article
Green & Sustainable Science & Technology
Anam Azam, Muhammad Rafiq, Muhammad Shafique, Haonan Zhang, Muhammad Ateeq, Jiahai Yuan
Summary: The study shows that renewable electricity consumption has a positive impact on economic growth in newly industrialized countries, and there is a significant bidirectional causation between renewable electricity consumption and economic growth in the long run.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Economics
Aviral Kumar Tiwari, Leena Mary Eapen, Sthanu R. Nair
Summary: The study found a long-term relationship between economic growth and electricity consumption in the agriculture sector in India, with unidirectional causality flowing from overall economic growth to electricity consumption at the aggregate state level. At the sectoral level, there is a unidirectional causal relationship running from electricity consumption to economic growth for the agriculture sector, and economic growth to electricity consumption for the industrial sector.
Article
Environmental Sciences
Dimitrios Dimitriadis, Constantinos Katrakilidis, Achillefs Karakotsios
Summary: This study examines the causal relationships among carbon dioxide emissions, economic growth, and renewable and non-renewable energy consumption in 68 developing countries from 1990 to 2014. The results suggest significant dynamic linkages among these variables and reveal possible differences in the impacts of renewable and non-renewable energy consumption on environmental quality.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Economics
Vladimir Arcabi, Tomislav Gelo, Robert J. Sonora, Jurica Simurina
Summary: This study analyzes the cointegration of electricity consumption, prices, and GDP in EU countries, considering potential structural breaks in electricity consumption. Results suggest that the Fourier cointegration test is more effective in rejecting the null hypothesis of no cointegration compared to the standard ADL test, and elasticity estimates show less difference when using structural breaks methods.
Article
Green & Sustainable Science & Technology
Yu Ma, Tingting Zhang, Wenyu Qian, Danqi Wei
Summary: This paper examines the impact of financial development and demographic changes on the non-hydro renewable energy industry in different countries. The results suggest that stock markets, bank intermediaries, and foreign direct investment play significant roles in promoting the growth of the industry in both developing and developed countries. However, the bond market's positive impact is observed only in developed countries, while population aging has a significant inhibitory effect in both types of countries.
Article
Economics
Benard M. Wabukala, Nicholas Mukisa, Susan Watundu, Olvar Bergland, Nichodemus Rudaheranwa, Muyiwa S. Adaramola
Summary: Renewable energy sources (RES) in Uganda face challenges in terms of affordability and theft. A study conducted a probabilistic assessment to categorize households based on electricity affordability in urban and rural areas. The study proposed alternative billing schemes to enhance legal connection and consumption of electricity. Results showed higher theft losses in rural households and a significant difference in revenue collected between urban and rural areas due to the number of legally connected households and their consumption levels. The study also highlighted the high initial connection fee and the below-average affordability of electricity for both rural and urban households in Uganda.
Article
Environmental Sciences
Maryam Ishaq, Ghulam Ghouse, Raquel Fernandez-Gonzalez, Felix Puime-Guillen, Natasa Tandir, Helena Maria Santos de Oliveira
Summary: This study examines the effects of energy intensity, renewable energy consumption, and forestation on CO2 emissions. The results show that energy intensity is the most influential determinant of CO2 emissions, followed by renewable energy consumption. Forestation has significant long-run effects only for lower-middle-income countries. The study supports the reduction of energy intensity and the promotion of renewable energy sources to address carbon emissions.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Economics
Taner Guney
Summary: This research examines the association between sustainable development, renewable energy consumption, non-renewable energy utilization, and GDP. OECD nations' statistics from 1990 to 2015 were used. The study finds bidirectional causality among these factors and emphasizes the importance of renewable energy for sustainable development.
JOURNAL OF THE KNOWLEDGE ECONOMY
(2023)
Article
Environmental Sciences
Nuno Carlos Leitao, Clara Contente Dos Santos Parente, Daniel Balsalobre-Lorente, Jose Maria Cantos Cantos
Summary: This research examines the environmental Kuznets curve and economic growth determinants for Visegrad countries. The findings suggest that economic growth is positively correlated with pollution emissions, while squared income per capita is negatively impacted by carbon dioxide emissions. Energy consumption increases carbon emissions, while renewable energy consumption promotes regional growth. Additionally, urban population and foreign direct investment are positively associated with economic growth.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Theodoros Christoforidis, Constantinos Katrakilidis
Summary: This article examines the impact of disaggregated energy sources and institutional quality on the ecological footprint of OECD countries, finding that economic growth and non-renewable energy consumption are detrimental to the environment, while institutional quality contributes to ecological sustainability. Additionally, there is evidence of a bidirectional causal association between non-renewable energy and institutional quality with the ecological footprint. The study also highlights the inefficient integration of renewable energy forms in OECD countries and emphasizes the essential role of institutions on environmental sustainability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Mohd Irfan
Summary: The paper examines the integration between electricity and renewable energy certificate (REC) markets for India, finding that solar and non-solar REC markets are influenced by a variety of factors. Suggestions are proposed to strengthen the REC market in India for promoting renewable energy development.
Article
Environmental Sciences
Rehab R. Esily, Yuanying Chi, Dalia M. Ibrahiem, Nourhane Houssam, Yahui Chen
Summary: This study investigates the effects of electricity sourced from natural gas (ENG), renewable energy (RE), and trade in information and communication technologies (ICTs) on economic growth and CO2 emissions in Algeria, Egypt, and Nigeria. The findings show that CO2, ENG, ICT trade, and urbanization (UP) have positive effects on economic progress, while RE has no significant influence. It is recommended that policymakers prioritize the usage of natural gas as a transition fuel to renewable energy sources and recognize the benefits of green ICT trade.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Ch. Sravan, Prajna Paramita Mishra
Summary: In the era of globalization, electricity plays a vital role in achieving high economic growth. Renewable electricity, due to its sustainability, serves as a driving force for environmentally friendly economic growth compared to other forms of electricity. However, in countries with insufficient domestic electricity production, importing electricity becomes crucial to meet the increasing demand. This study explores the causal relationships between renewable electricity production, electricity imports, and electricity consumption in India. Using a Vector Error Correction model and Wald-Granger causality test, analysis reveals that greenhouse gas emissions and natural resource rents positively influence renewable electricity production. Increasing electricity consumption leads to higher electricity imports, but does not significantly impact renewable production. The results call for a focus on developing renewable electricity production systems from both producers and consumers to combat rising emission levels. Minimizing imports is recommended to maintain electricity self-sufficiency.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Green & Sustainable Science & Technology
Qiang Wang, Fuyu Zhang
Summary: Existing research suggests that the impact of free trade on renewable energy development varies among countries with different income levels. While free trade has a positive effect on renewable energy development in high and upper-middle income countries, it has a negative influence on lower-middle income countries. In addition, population increase, economic development, and technological progress are important factors that can promote renewable energy development in 186 countries.
Article
Thermodynamics
Anam Azam, Muhammad Rafiq, Muhammad Shafique, Muhammad Ateeq, Jiahai Yuan
Summary: In the 21st century, humans are facing challenges of environmental degradation and the need for sustainable economic development; renewable electricity consumption has a positive impact on reducing CO2 emissions in the long run, although its influence on GDP is statistically insignificant.
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2021)
Article
Environmental Sciences
Sana Ghorbal, Mehdi Ben Jebli, Slim Ben Youssef
Summary: The study found that foreign direct investment and trade have negative impacts on the consumption of renewable energies in Tunisia, while non-foreign patents have a positive impact. In the short term, there is a one-way causality from CO2 emissions to patents, while in the long term there are bidirectional causal relationships between renewable energies, non-foreign patents, and trade.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Montassar Kahia, Mehdi Ben Jebli
Summary: This paper utilizes panel cointegration and Granger causation approaches to analyze the relationships among CO2 emissions, GDP growth, clean energy generation, and industrial growth for the top ten industrial countries from 1980 to 2014. The study shows that clean energy generation has a statistically significant impact on reducing CO2 emissions in some countries while increasing them in others, and industrial growth also has varying effects on emissions in different countries.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Sana Ghorbal, Sahbi Farhani, Slim Ben Youssef
Summary: The study analyzed the linkage between CO2 emissions, renewable energy consumption, foreign direct investment, national patents, exports, imports, and GDP in Tunisia from 1980 to 2017. Findings from the elasticity long-run test showed that RE consumption, exports, and GDP have a positive impact on CO2 emissions, while FDI has a negative impact. Additionally, the study suggests that Tunisia should encourage FDI as it seems to play a role in mitigating CO2 emissions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Mohamed Sahbi Nakhli, Muhammad Shahbaz, Mehdi Ben Jebli, Shizhen Wang
Summary: This research examines the relationship between renewable and non-renewable electricity consumption, CO2 emissions, and economic policy uncertainty in the United States. The findings suggest a unidirectional causality from electricity consumption to economic policy uncertainty, and a bidirectional causality between CO2 emissions and economic policy uncertainty. The study supports the sustainable development goals of the United States and provides policy recommendations.
Article
Green & Sustainable Science & Technology
Shaohua Jiang, Grzegorz Mentel, Irum Shahzadi, Mehdi Ben Jebli, Najaf Iqbal
Summary: The prime objective of this research is to explore the impacts of import and export diversification and renewable energy on environmental footprints. The study finds that income inequality and import diversification increase ecological issues while globalization and exports diversification mitigate them. Furthermore, there is a unidirectional causal relationship between renewable energy consumption and import diversification, as well as ecological footprint and import diversification.
Article
Environmental Sciences
Yosra Mahou, Slim Ben Youssef, Mehdi Ben Jebli
Summary: This study examines the progress of California in meeting the United Nations Sustainable Development Goals. The findings show that renewable energy consumption has a short-term impact on CO2 emissions, and GDP and research and development have bidirectional effects on CO2 emissions and renewable energy consumption. In the long run, renewable energy consumption, research and development, and GDP contribute to CO2 emissions, while renewable energy consumption, research and development, and CO2 emissions contribute to GDP.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Mehdi Ben Jebli, Abdelaziz Hakimi
Summary: The environmental situation is seriously degraded due to the spread of greenhouse gases. This study examines the impact of financial inclusion and renewable energy consumption on CO2 emissions, taking into account other factors. The results show that real GDP, renewable energy consumption, and technological advancement contribute to reducing CO2 emissions, while non-renewable energy consumption and financial inclusion contribute to increasing emissions levels.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Green & Sustainable Science & Technology
Sana Ghorbal, Lamia Soltani, Slim Ben Youssef
Summary: This study explores the relationship between CO2 emissions, energy consumption, patents, foreign direct investment, and Gross Domestic Product in South Korea. The results show that energy consumption, domestic patents, and GDP have positive impacts on CO2 emissions, while foreign patents have a negative impact. Additionally, energy consumption and foreign patents have positive effects on GDP, while patents and CO2 emissions have a negative impact.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2022)
Article
Environmental Sciences
Imen Chaouali, Mehdi Ben Jebli, Wadim Strielkowski
Summary: The present study examines the relationships between CO2 emissions, real GDP, renewable and non-renewable energy consumption, and service growth for the top ten countries (TTC) in service activities. The study uses cointegration and Granger causality tests to analyze the dynamic interaction between the variables from 1980 to 2018. The results suggest cross-sectional dependence and cointegration among the variables. Long-term outcomes reveal an inverse U-shaped relationship between emissions and GDP, supporting the environmental Kuznets curve hypothesis. The findings indicate that non-renewable energy and economic growth contribute to CO2 emissions, while service value-added leads to a decrease in emissions. The coefficient for renewable energy is negative but insignificant for the selected panel. The study emphasizes the importance of promoting renewable energy use in the service sector for sustainable development.
NATURAL RESOURCES FORUM
(2023)
Article
Environmental Studies
Sana Ghorbal, Slim Ben Youssef
Summary: South Korea, as a leading country in innovation and R&D, especially in renewable energy, faces challenges as one of the more polluting countries. This article examines the relationship between CO2 emissions, GDP, RE, FDI, HP, and FP in South Korea from 1980 to 2018. The study finds that there is a positive relationship between GDP and CO2 emissions, while FP and RE have a negative influence on CO2 emissions but favorably affect GDP. FDI and HP have positive impacts on CO2 emissions. The research also reveals long-term bidirectional causal relationships among CO2 emissions, GDP, RE, and FP, with certain unidirectional causalities in the short-run.
ENERGY & ENVIRONMENT
(2023)
Article
Area Studies
Slim Ben Youssef
Summary: This paper evaluates the relationship between military spending (MS) and oil imports (OIM) in China, finding that in the long run, MS increases OIM, renewable energy consumption, and GDP. However, OIM has a non-linear and asymmetric impact on MS in both the short and long term. The study suggests that China is likely to reduce its military spending significantly when it is confident in its energy security, which can be achieved through increasing renewable energy consumption, with contributions from the military sector, particularly in R&D activities.
JOURNAL OF ASIAN AND AFRICAN STUDIES
(2023)
Article
Green & Sustainable Science & Technology
Mehdi Ben Jebli, Imen Gam
Summary: This study investigates the impact of water investment, agricultural land expansion, economic growth, and renewable energy on environmental quality (CO2 emissions) in China using the linear and nonlinear Autoregressive Distributed Lags (ARDL and the NARDL) methods from 1994 to 2019. The choice of China for empirical research is motivated by the potential for improving global environmental quality and combating global warming. The empirical results provide strong evidence of a cointegration relationship between the variables considered. This study contributes to the existing literature by challenging two hypotheses and suggesting the promotion of green agriculture and renewable energy use through taxes and subsidies to control polluting activities.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Environmental Sciences
Imen Chaouali, Mehdi Ben Jebli, Imen Gam
Summary: This study investigates the relationship among renewable energy consumption, carbon dioxide emissions, economic development, and service growth in Tunisia using linear and non-linear autoregressive distributed lags techniques and Granger causality tests for the period of 1980-2020. The linear results indicate a positive effect of renewable energy and service growth on carbon emissions in the long term. The non-linear results show that a negative energy shock has a positive impact on environmental quality in the long term. Importantly, unilateral causality from all the modeled variables to carbon emissions is revealed in the long run. To mitigate climate change and promote economic prosperity, the Tunisian government should develop an efficient, environmentally friendly strategy and further explore the connection between new technologies and renewable energy. Indeed, policymakers are encouraged to promote the use of innovative clean technologies in renewable energy production.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Slim Ben Youssef
Summary: In this study, the relationships among renewable energy consumption, net energy imports, military expenditures, arms exports, gross domestic product, and carbon dioxide emissions in the USA were evaluated using annual data. The autoregressive distributed lag approach and the vector error correction model were employed. The results revealed both long-term and strong causal relationships existing from all variables considered to renewable energy consumption. Furthermore, there was a short-term causality running from net energy imports to renewable energy consumption. The study also showed that arms exports had a positive long-term effect on both renewable energy consumption and net energy imports. Military expenditures had a positive long-term impact on renewable energy consumption, but a negative long-term effect on both net energy imports and CO2 emissions. This study highlights the contribution of the military sector in the USA towards utilizing renewable energy and combating global warming. The recommendation is made to increase the R&D budget of the US Department of Defense allocated to innovations in renewable energies.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Cameron Bracken, Nathalie Voisin, Casey D. Burleyson, Allison M. Campbell, Z. Jason Hou, Daniel Broman
Summary: This study presents a methodology and dataset for examining compound wind and solar energy droughts, as well as the first standardized benchmark of energy droughts across the Continental United States (CONUS) for a 2020 infrastructure. The results show that compound wind and solar droughts have distinct spatial and temporal patterns across the CONUS, and the characteristics of energy droughts are regional. The study also finds that compound high load events occur more often during compound wind and solar droughts than expected.
Article
Green & Sustainable Science & Technology
Ning Zhang, Yanghao Yu, Jiawei Wu, Ershun Du, Shuming Zhang, Jinyu Xiao
Summary: This paper provides insights into the optimal configuration of CSP plants with different penetrations of wind power by proposing an unconstrained optimization model. The results suggest that large solar multiples and TES are preferred in order to maximize profit, especially when combined with high penetrations of wind and photovoltaic plants. Additionally, the study demonstrates the economy and feasibility of installing electric heaters (EH) in CSP plants, which show a linear correlation with the penetration of variable energy resources.
Article
Green & Sustainable Science & Technology
M. Szubel, K. Papis-Fraczek, S. Podlasek
Article
Green & Sustainable Science & Technology
J. Silva, J. C. Goncalves, C. Rocha, J. Vilaca, L. M. Madeira
Summary: This study investigated the methanation of CO2 in biogas and compared two different methanation reactors. The results showed that the cooled reactor without CO2 separation achieved a CO2 conversion rate of 91.8%, while the adiabatic reactors achieved conversion rates of 59.6% and 67.2%, resulting in an overall conversion rate of 93.0%. Economic analysis revealed negative net present worth values, indicating the need for government monetary incentives.
Article
Green & Sustainable Science & Technology
Yang Liu, Yonglan Xi, Xiaomei Ye, Yingpeng Zhang, Chengcheng Wang, Zhaoyan Jia, Chunhui Cao, Ting Han, Jing Du, Xiangping Kong, Zhongbing Chen
Summary: This study investigated the effect of using nanofiber membrane composites containing Prussian blue-like compound nanoparticles (PNPs) to relieve ammonia nitrogen inhibition of rural organic household waste during high-solid anaerobic digestion and increase methane production. The results showed that adding NMCs with 15% PNPs can lower the concentrations of volatile fatty acids and ammonia nitrogen, and increase methane yield.
Article
Green & Sustainable Science & Technology
Zhong Ge, Xiaodong Wang, Jian Li, Jian Xu, Jianbin Xie, Zhiyong Xie, Ruiqu Ma
Summary: This study evaluates the thermodynamic, exergy, and economic performance of a double-stage organic flash cycle (DOFC) using ten eco-friendly hydrofluoroolefins. The influences of key parameters on performance are analyzed, and the advantages of DOFC over single-stage type are quantified.
Article
Green & Sustainable Science & Technology
Nicolas Kirchner-Bossi, Fernando Porte-Agel
Summary: This study investigates the optimization of power density in wind farms and its sensitivity to the available area size. A novel genetic algorithm (PDGA) is introduced to optimize power density and turbine layout. The results show that the PDGA-driven solutions significantly reduce the levelized cost of energy (LCOE) compared to the default layout, and exhibit a convex relationship between area and LCOE or power density.
Article
Green & Sustainable Science & Technology
Chunxiao Zhang, Dongdong Li, Lin Wang, Qingpo Yang, Yutao Guo, Wei Zhang, Chao Shen, Jihong Pu
Summary: In this study, a novel reversible liquid-filled energy-saving window that effectively regulates indoor solar radiation heat gain is proposed. Experimental results show that this window can effectively reduce indoor temperature during both summer and winter seasons, while having minimal impact on indoor illuminance.
Article
Green & Sustainable Science & Technology
Alessandro L. Aguiar, Martinho Marta-Almeida, Mauro Cirano, Janini Pereira, Leticia Cotrim da Cunha
Summary: This study analyzed the Brazilian Equatorial Shelf using a high-resolution ocean model and found significant tidal variations in the area. Several hypothetical barrages were proposed with higher annual power generation than existing barrages. The study also evaluated the installation effort of these barrages.
Article
Green & Sustainable Science & Technology
Francesco Superchi, Nathan Giovannini, Antonis Moustakis, George Pechlivanoglou, Alessandro Bianchini
Summary: This study focuses on the optimization of a hybrid power station on the Tilos island in Greece, aiming to increase energy export and revenue by optimizing energy fluxes. Different scenarios are proposed to examine the impact of different agreements with the grid operator on the optimal solution.
Article
Green & Sustainable Science & Technology
Peimaneh Shirazi, Amirmohammad Behzadi, Pouria Ahmadi, Sasan Sadrizadeh
Summary: This research presents two novel energy production/storage/usage systems to reduce energy consumption and environmental effects in buildings. A biomass-fired model and a solar-driven system integrated with photovoltaic thermal (PVT) panels and a heat pump were designed and assessed. The results indicate that the solar-based system has an acceptable energy cost and the PVT-based system with a heat pump is environmentally superior. The biomass-fired system shows excellent efficiency.
Article
Green & Sustainable Science & Technology
Zihao Qi, Yingling Cai, Yunxiang Cui
Summary: This study aims to investigate the operational characteristics of the solar-ground source heat pump system (SGSHPS) in Shanghai under different operation modes. It concludes that tandem operation mode 1 is the optimal mode for winter operation in terms of energy efficiency.
Article
Green & Sustainable Science & Technology
L. Bartolucci, S. Cordiner, A. Di Carlo, A. Gallifuoco, P. Mele, V. Mulone
Summary: Spent coffee grounds are a valuable biogenic waste that can be used as a source of biofuels and valuable chemicals through pyrolysis and solvent extraction processes. The study found that heavy organic bio-oil derived from coffee grounds can be used as a carbon-rich biofuel, while solvent extraction can extract xantines and p-benzoquinone, which are important chemicals for various industries. The results highlight the promising potential of solvent extraction in improving the economic viability of coffee grounds pyrolysis-based biorefineries.
Article
Green & Sustainable Science & Technology
Luiza de Queiroz Correa, Diego Bagnis, Pedro Rabelo Melo Franco, Esly Ferreira da Costa Junior, Andrea Oliveira Souza da Costa
Summary: Building-integrated photovoltaics, especially organic solar technology, are important for reducing greenhouse gas emissions in the building sector. This study analyzed the performance of organic panels laminated in glass in a vertical installation in Latin America. Results showed that glass lamination and vertical orientation preserved the panels' performance and led to higher energy generation in winter.
Article
Green & Sustainable Science & Technology
Zhipei Hu, Shuo Jiang, Zhigao Sun, Jun Li
Summary: This study proposes innovative fin arrangements to enhance the thermal performance of latent heat storage units. Through optimization of fin distribution and prediction of transient melting behaviors, it is found that fin structures significantly influence heat transfer characteristics and melting behaviors.
