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International Journal of Renewable Energy Development
Published by Center of Biomass and Renewable Energy
ISSN : 22524940     EISSN : 27164519     DOI : https://doi.org/10.61435/ijred.xxx.xxx
Core Subject : Science, Engineering,
Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering
The International Journal of Renewable Energy Development - (Int. J. Renew. Energy Dev.; p-ISSN: 2252-4940; e-ISSN:2716-4519) is an open access and peer-reviewed journal co-published by Center of Biomass and Renewable Energy (CBIORE) that aims to promote renewable energy researches and developments, and it provides a link between scientists, engineers, economist, societies and other practitioners. International Journal of Renewable Energy Development is currently being indexed in Scopus database and has a listing and ranking in the SJR (SCImago Journal and Country Rank), ESCI (Clarivate Analytics), CNKI Scholar as well as accredited in SINTA 1 (First grade category journal) by The Directorate General of Higher Education, The Ministry of Education, Culture, Research and Technology, The Republic of Indonesia under a decree No 200/M/KPT/2020. The scope of journal encompasses: Photovoltaic technology, Solar thermal applications, Biomass and Bioenergy, Wind energy technology, Material science and technology, Low energy architecture, Geothermal energy, Wave and tidal energy, Hydro power, Hydrogen production technology, Energy policy, Socio-economic on energy, Energy efficiency, planning and management, Life cycle assessment. The journal also welcomes papers on other related topics provided that such topics are within the context of the broader multi-disciplinary scope of developments of renewable energy.
Arjuna Subject : Energi (semua kategori) - Energi Terbarukan, Keberlanjutan dan Lingkungan
Articles 734 Documents
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Geopolitical risk, renewable energy transition and policy response: evidence from the BRICS economies Talent Thebe Zwane; Akindele John Ogunsola
International Journal of Renewable Energy Development Vol 15, No 3 (2026): May 2026
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2026.61693

Abstract

This paper empirically examines the dynamic interplay between geopolitical risk, renewable energy transitions, and policy responses within the BRICS (Brazil, Russia, India, China, and South Africa) economies spanning the period from 1990 to 2023, thus addressing the pressing challenge of harmonizing the energy security priorities with the imperative for sustainable economic growth. Employing cross-sectional autoregressive distributed lag and Bayesian structural vector autoregression methodologies for a comprehensive analysis of short-run and long-run dynamics among variables, the findings show a significant negative relationship between geopolitical risks and the adoption and investment in renewable energy sources. Correspondingly, economic policy uncertainties are observed to spur renewable energy consumption under specific economic circumstances characterized by effective policy frameworks; however, policy uncertainties pose a hindrance to renewable energy investment. Furthermore, the study highlights that exchange rate fluctuations have a significant positive impact on renewable investment decisions, whereas demographic pressures stemming from population growth tend to impede energy transition processes. The response strategies to geopolitical shocks underscore the crucial nexus between policy formulation and stability, which collectively mold energy-related outcomes. The central policy recommendation emanating from this study emphasizes the significance of concerted cooperation among the BRICS nations, including measures such as shared supply-chain assurances, regional financing mechanisms, and harmonized regulatory regimes to alleviate barriers associated with geopolitical risks in the transition to renewable energy sources. Finally, the direct applicability of the results pertains to the unique context of the BRICS bloc, which is due to their specific trade dynamics, technological dependencies, and exposure to commodities. 
Methodology for the Selection and Optimal Sizing of Standalone PV / Wind Energy Systems with Battery Storage under Resource Availability Constraints Guétinsom Jean Kafando; Daniel YAMEGUEU; Sani Moussa Kadri
International Journal of Renewable Energy Development Accepted Articles
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2026.61740

Abstract

Access to electricity remains a major challenge in sub-Saharan Africa, particularly in rural areas where grid extension is often costly and unprofitable. Standalone photovoltaic (PV) and/or wind power systems with battery storage represent a promising solution, yet they still face technical and economic barriers, especially related to sizing and storage costs. This article proposes an innovative methodology for the selection and optimal sizing of such systems, integrating a predictive battery aging model based on the analysis of real charge/discharge cycles using the Rainflow algorithm and Miner’s rule. The methodology relies on four main techno-economic performance indicators: the Loss of Power Supply Probability (LPSP), the Levelized Cost of Energy (LCOE), the Capacity Factor (CF) of a wind turbine, and the Weighted Index of Complementarity and Productivity (WICP). It accounts for available resources, the user’s hourly consumption profile, and local climatic conditions. The approach is applied to the case of Nagréongo, a rural area in Burkina Faso. Only the PV/battery system proves to be a viable option. In contrast, the site is unsuitable for wind energy system installation, even in a hybrid configuration, as both the capacity factor (CF) and the wind complementarity index (WICP) remain below acceptable thresholds. The study also reveals that optimal configurations depend heavily on the hourly consumption profile, despite identical daily energy needs. Finally, a comparison with the conventional intuitive method and the HOMER software shows that the proposed methodology can reduce the LCOE by more than 50% and around 20%, respectively, thanks to a better consideration of real battery aging, hourly demand variability, and system idle periods.
Optimization of energy efficiency and purge strategy of an open-cathode PEMFC stack with a dead-end anode configuration Tan-Thich Do; Trung-Kien Vi; Phuoc-Dong Doan
International Journal of Renewable Energy Development Accepted Articles
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2026.62153

Abstract

Nowadays, proton exchange membrane fuel cells (PEMFCs) are acknowledged as promising energy solutions toward reaching net-zero emissions by 2050 due to their highlighted properties. To enhance electrochemical reactions and improve hydrogen utilization, the dead-end anode (DEA) configuration was employed to investigate the voltage and energy efficiency of an open-cathode PEMFC stack (100 W-20 cells) at optimal fan speed. The results show that when the operating current and purge interval increased, the stack voltage decreased owing to water impurities, water, and nitrogen buildup in the flow field anode channel. At optimal purge intervals of 540, 360, 280, and 60 s, the energy efficiency was achieved at 45.55%, 45.31%, 43.11%, and 35.05%, respectively. Compared to a previous study, these values represent increases of 25.22%, 12.91%, 9.15%, and 2.09% for operating currents of 1, 3, 5, and 8 A, respectively. These improvements were achieved by optimizing the fan speed, purge interval, and microcontroller unit power consumption. Finally, a hydrogen purge strategy was developed to optimize energy efficiency, considering voltage stability and hydrogen consumption. This study provides meaningful insights into optimizing the energy efficiency of open-cathode PEMFC stacks across various load levels.
Electrospun PVA/CQD Nanofiber–Coated Carbon Anode for High–Performance Microbial Fuel Cells: A Comparative Study Firman Ridwan; Muhammad Restu Raimon; Dean Bilalwa Agusto; Wismalqi Wismalqi; Feskaharny Alamsjah
International Journal of Renewable Energy Development Accepted Articles
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2026.61677

Abstract

This research presents a novel approach to MFCs by utilizing carbon anodes coated with nanofibers through the electrospinning technique, incorporating PVA and CQDs as functional components. The MFC experiments involved two electrogenic bacteria, Bacillus subtilis and Escherichia coli, using sugarcane juice as the substrate. Characterization tests, such as SEM, FTIR, and UV–Vis, verified the incorporation of CQDs and bacteria into the nanofiber structure. Electrochemical analyses, including CV and EIS, revealed a notable decrease in charge transfer resistance and an improvement in electron kinetics, especially with B. subtilis. The MFC based on B. subtilis showed superior performance, achieving a maximum power density of 1754 mW/m² on the fourth day, which is about 3.5 times greater than the E. coli system, which only reached 491 mW/m². The enhanced performance of B. subtilis is credited to its capability to form a strong biofilm on the nanocomposite anode surface, promoting direct electron transfer, and its metabolic pathways that aid in the production of redox metabolites. The findings highlight the potential of nanofiber–coated carbon anodes and the superiority of B. subtilis as an electrogenic bacterium for enhancing MFC performance and advancing sustainable energy production from organic waste.

Page 74 of 74 | Total Record : 734

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