Jinwei Li , Xiaoling Cao , Shouya Liu , Pengxin Zhang , Yanping Yuan
{"title":"Study on the load uncertainty of buildings and villages in western Sichuan Plateau based BP neural network integrating prior knowledge","authors":"Jinwei Li , Xiaoling Cao , Shouya Liu , Pengxin Zhang , Yanping Yuan","doi":"10.1016/j.esd.2025.101781","DOIUrl":"10.1016/j.esd.2025.101781","url":null,"abstract":"<div><div>Due to its unique climatic conditions and occupant behaviors, the precise design of heating systems in the western Sichuan Plateau (WSCP) presents significant challenges. Existing research has primarily focused on climate change and solar energy utilization systems, with limited exploration of the combined impacts of weather variability and occupant behavior uncertainties on building and village heating demands. This study obtained three typical buildings and occupant behavior patterns through field surveys and on-site measurements. Further, it developed a novel algorithm combining a particle swarm optimization (PSO) algorithm with a backpropagation (BP) algorithm that incorporates prior knowledge to predict heating demands for buildings and villages under the dual uncertainties of weather and occupant behavior across different locations. The results show that considering both weather and occupant behavior uncertainties, the peak heating load of buildings may increase by up to 119.3 % compared to design conditions. Conversely, when considering the herding activities of the inhabitants, the overall peak heating demand of villages may decrease by 38.1 %. Additionally, in the WSCP, the mean uncertainty of building heating demand exhibits an upward trend with decreasing longitude and increasing latitude. Therefore, future designs of distributed and centralized heating systems in this region should fully incorporate the impacts of uncertainties from weather conditions and occupant behaviors. The findings of this study provide critical references for the precise design of heating systems in the WSCP.</div></div>","PeriodicalId":49209,"journal":{"name":"Energy for Sustainable Development","volume":"88 ","pages":"Article 101781"},"PeriodicalIF":4.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144569790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ofelia Carlsson, Madeleine Johansson, Erik O. Ahlgren
{"title":"Utilization of a solar PV mini-grid powered cold storage to reduce fishery spoilage - A Tanzanian case","authors":"Ofelia Carlsson, Madeleine Johansson, Erik O. Ahlgren","doi":"10.1016/j.esd.2025.101778","DOIUrl":"10.1016/j.esd.2025.101778","url":null,"abstract":"<div><div>Access to electricity is important for the development of rural areas in Sub-Saharan Africa. One area where better electricity access could contribute to development is reduction of spoilage of food. This article aims to understand how access to electricity can affect the spoilage of fish and the economical possibility to implement a communal cold storage unit connected to a solar PV mini-grid, as well as what technical requirements this would put on the mini-grid operation. The study is based on a case on the island Ukara in Lake Victoria, Tanzania. A techno-economic analysis is performed simulating a walk-in cold storage room connected to a solar PV mini-grid. The article also includes a qualitative analysis with a causal loop diagram illustrating the interlinkages between the system variables to identify the effects of electrification on the spoilage of fish. The findings indicate that it is economically feasible to implement a communal cold storage unit if an investor makes the initial investment and allows the fishers a pay-back period of at least one year and if a profit wants to be made more than 50 kg fish should be sold a day. Another finding is that the capacity of the mini-grid may need to increase to be able to cover the demand during periods of low solar PV generation. The cost for the mini-grid company becomes higher with the cooling unit during the high season of fishery, this is since the rain seasons correlate with this, and the solar radiation is low. The mini-grid operation cost is around 2.4 $/day higher with the cooling unit connected to the grid, it may be higher if the mini-grid owners decide to run the diesel generator instead to invest in higher capacity batteries and solar PV. The causal loop diagram indicates that access to electricity can be an important solution to reduce the spoilage of fish by enabling the use of cold storage. Moreover, electricity access allows the fishermen to use electricity for value addition of the fish, as the refrigerated fish have higher price than fresh fish. The spoilage has become zero when the fish is refrigerated.</div></div>","PeriodicalId":49209,"journal":{"name":"Energy for Sustainable Development","volume":"88 ","pages":"Article 101778"},"PeriodicalIF":4.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144569789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sustainability-driven energy management strategies for reducing carbon footprints in higher education","authors":"Ahmed Hebala, Mostafa M. Kamel, Mostafa S. Hamad","doi":"10.1016/j.esd.2025.101783","DOIUrl":"10.1016/j.esd.2025.101783","url":null,"abstract":"<div><div>Higher Education Institutions (HEIs) are intense energy consumers with a substantial carbon footprint (CF), yet they hold promising potential for emissions reductions. This study aims to evaluate the CF of the College of Maritime Transport and Technology (CMTT), Alexandria, Egypt, and to assess the effectiveness of four mitigation strategies. An in-depth CF analysis was conducted based on Scope 1, 2, and 3 emissions using established protocols to identify key emission sources. Building on this baseline, the study evaluates the impact of four mitigation strategies: (1) improving energy efficiency in buildings, (2) PV-based energy generation, (3) electrifying the campus transport fleet, and (4) an innovative on-campus waste valorisation system that converts Recycled Cooking Oil (RCO) into biodiesel. The analysis estimates the potential for RCO production from campus activities and quantifies feasible CF reductions from biodiesel-based fossil fuel substitution. The effectiveness of this approach is compared with that of conventional strategies, showing varying degrees of contribution to institutional decarbonisation. The study provides a novel integration of circular economy solutions—specifically RCO-to-biodiesel conversion—into a conventional energy and emissions management framework. It offers a replicable roadmap for HEIs to enhance sustainability through combined renewable, efficiency, and waste-to-energy strategies.</div></div>","PeriodicalId":49209,"journal":{"name":"Energy for Sustainable Development","volume":"88 ","pages":"Article 101783"},"PeriodicalIF":4.4,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144556592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Stella Tereka , Jon Geir Pétursson , Patrick Byakagaba , Auður H. Ingólfsdóttir
{"title":"Gender and socio-economic determinants of rural household adoption of clean energy practices in Uganda: Implications for energy transition pathways","authors":"Stella Tereka , Jon Geir Pétursson , Patrick Byakagaba , Auður H. Ingólfsdóttir","doi":"10.1016/j.esd.2025.101780","DOIUrl":"10.1016/j.esd.2025.101780","url":null,"abstract":"<div><div>This study explores how gender, socio-economic factors, and cultural norms shape rural household energy transitions in Uganda—an area underexamined in sub-national, gender-informed energy research. Using a mixed-methods approach, the study draws on data from 675 household surveys and 24 focus group discussions across six districts. Analytical methods included ordinal logistic regression using the Adjacent Categories Model (ACM) and thematic coding of qualitative data. The study draws on the Sustainable Livelihood Framework (SLF), Feminist Political Ecology (FPE), and energy ladder and stacking models.</div><div>Results show that 98 % of households continue to rely on biomass fuels, with energy stacking driven by affordability and supply constraints rather than deliberate progression toward cleaner options. Poverty, limited infrastructure, cultural preferences, and gendered divisions of labour and decision-making constrain the adoption of clean energy technologies. While women and girls predominantly collect firewood, male participation increased in certain districts (e.g., Adjumani and Luweero), reflecting localised shifts in labour roles. Income diversification, participation in savings groups (VSLAs), and knowledge of environmental issues significantly improve the likelihood of cleaner energy adoption.</div><div>The study contributes to the energy social science research by combining gender and context-specific analysis with mixed methods and a multi-theoretical framework. It underscores the need for integrated, locally grounded policy interventions that address structural and socio-cultural barriers to energy transition.</div></div>","PeriodicalId":49209,"journal":{"name":"Energy for Sustainable Development","volume":"88 ","pages":"Article 101780"},"PeriodicalIF":4.4,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144524277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Climate commitments and energy transition pledges in Latin America: Where is the region headed?","authors":"L.L.B. Lazaro , O.C. Usuriaga-Najera , A.H. Neto , J.A.B. Grimoni , P.R. Jacobi","doi":"10.1016/j.esd.2025.101779","DOIUrl":"10.1016/j.esd.2025.101779","url":null,"abstract":"<div><div>Energy transition has emerged as a central theme in Latin American political and public discourse; however, its meaning remains ambiguous, and is often co-opted by powerful political and economic actors to reinforce existing structures rather than drive transformative change. This study critically examines Latin America's climate commitments and energy transition pledges by exploring three key dimensions: (a) trends in greenhouse gas emissions; (b) evolution of climate-related institutions and policies, and; (c) energy sector commitments and initiatives that drive energy transition. Although Latin America contributed relatively little to global energy-related CO<sub>2</sub> emissions and maintains a predominantly renewable electricity mix, it remains the largest emitter in the world from land use change and forestry sectors. The region's continued dependence on fossil fuels, particularly in high-emission sectors such as transport, as well as, its reliance on oil revenues and extractive industries presents significant structural barriers. Weak, often non-binding, climate governance frameworks further undermine progress. While national commitments increasingly emphasize renewable energy deployment, achieving a meaningful transition requires systemic reforms, stronger institutional enforcement, and improved policy coherence. This transition must integrate social equity, energy poverty, and climate justice—beyond technological solutions—to ensure a just and sustainable energy and climate future for Latin America.</div></div>","PeriodicalId":49209,"journal":{"name":"Energy for Sustainable Development","volume":"88 ","pages":"Article 101779"},"PeriodicalIF":4.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144514274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sustainable ethanol production: CO2 emission analysis and feedstock strategies through life cycle assessment","authors":"Vijay Kumar, Ashish Ranjan Sinha","doi":"10.1016/j.esd.2025.101775","DOIUrl":"10.1016/j.esd.2025.101775","url":null,"abstract":"<div><div>The environmental impact of ethanol as a substitute for petroleum-based fuels is mainly dependent on its feedstock. This study employs Life Cycle Assessment (LCA) to compare CO<sub>2</sub> emissions from ethanol production derived from sugarcane, maize, and rice, alongside conventional petrol, to identify the most sustainable option for fuel. The findings reveal that sugarcane, maize, and rice-based ethanol provide the most significant ecological benefits, with net CO<sub>2</sub> emissions of −1.61 kg/L, −0.19 kg/L, and 0.81 kg/L, primarily due to their superior carbon sequestration potential and installation of carbon storage plants in the distilleries, making them environmentally preferable to petrol. Additionally, ethanol demonstrates better combustion properties and a lower carbon intensity compared to petrol, thereby reinforcing its role as a cleaner alternative for energy. The study further highlights that integrating CO<sub>2</sub> capture technologies in ethanol distilleries can significantly reduce emissions, thereby enhancing both environmental sustainability and economic feasibility. These insights highlight the potential of ethanol as a viable, low-carbon energy source, particularly when combined with advanced emission-reduction strategies for transportation fuel.</div></div>","PeriodicalId":49209,"journal":{"name":"Energy for Sustainable Development","volume":"88 ","pages":"Article 101775"},"PeriodicalIF":4.4,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An expert opinion-based perspective on emerging policy and economic research priorities for advancing the low-carbon hydrogen sector","authors":"Rubal Dua, Rami Shabaneh","doi":"10.1016/j.esd.2025.101774","DOIUrl":"10.1016/j.esd.2025.101774","url":null,"abstract":"<div><div>This perspective sheds light on emerging research priorities crucial for advancing the low-carbon hydrogen sector considered critical for achieving net zero greenhouse gas emissions targets especially for hard-to-abate sectors. Our analysis follows a five-step process, including drawing from news media, academic discourse, and expert consultations. We identify twenty-one major research challenges. Among the top priorities highlighted by experts are: (i) Evaluating the trade-offs of hydrogen-fueled power generation compared to hydrocarbon fuels and renewables with alternative storage solutions, and the feasibility of co-firing hydrogen and ammonia with hydrocarbon fuels for backup or independent power generation; (ii) Exploring how global hydrogen trade could be shaped by market forces such as price volatility, geopolitical dynamics, and international collaborations; (iii) Examining the financial considerations for investors from developed nations pursuing hydrogen projects in resource-rich developing countries, balancing costs, investment risks, and expected returns. We find statistically significant differences in opinions on hydrogen/ammonia co-firing for power generation between experts from China and those from the U.S. and Germany.</div></div>","PeriodicalId":49209,"journal":{"name":"Energy for Sustainable Development","volume":"88 ","pages":"Article 101774"},"PeriodicalIF":4.4,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pheladi Morufa Molepo, Khaled Aboalez, Tebello Ntsiki Don Mathaba
{"title":"Analysis of Barriers to South Africa’s Energy Transition: Perspectives from industry experts","authors":"Pheladi Morufa Molepo, Khaled Aboalez, Tebello Ntsiki Don Mathaba","doi":"10.1016/j.esd.2025.101777","DOIUrl":"10.1016/j.esd.2025.101777","url":null,"abstract":"<div><div>Renewable energy sources hold immense potential for meeting future energy demands while significantly reducing greenhouse gas emissions. Despite South Africa's abundant wind and solar resources, the country's transition to renewable energy has remained stagnant. Several barriers hinder the integration of these technologies into the energy system. This study applied the AKTESP theoretical framework to analyse the key challenges impeding wind and solar energy adoption in South Africa. Fifteen semi-structured interviews with industry experts were conducted to gather insights into these barriers. The analysis revealed that agreement, social, and technological categories are the most critical barriers obstructing South Africa’s energy transition. Among the most significant barriers are the lack of grid connection, the lack of policy continuity (both mentioned by 100% of participants), and limited public awareness (mentioned by 87% of participants). In contrast, political, market, economic, and knowledge-related barriers were found to be less significant. South Africa has well-developed policies and knowledgeable stakeholders capable of supporting renewable energy projects and facilitating their integration into the national grid.</div></div>","PeriodicalId":49209,"journal":{"name":"Energy for Sustainable Development","volume":"88 ","pages":"Article 101777"},"PeriodicalIF":4.4,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144338556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rizqi Ilma Nugroho , Till Gnann , Daniel Speth , Widodo Wahyu Purwanto , Jessica Hanafi , Sutanto Soehodho
{"title":"Integrated analysis of the market diffusion of battery electric passenger cars and motorcycles in emerging markets: An agent-based modeling approach","authors":"Rizqi Ilma Nugroho , Till Gnann , Daniel Speth , Widodo Wahyu Purwanto , Jessica Hanafi , Sutanto Soehodho","doi":"10.1016/j.esd.2025.101772","DOIUrl":"10.1016/j.esd.2025.101772","url":null,"abstract":"<div><div>Battery electric vehicles (BEV) offer a promising pathway to decarbonizing transportation. However, existing studies have primarily focused on BEV passenger cars while overlooking motorcycles and the interplay between these modes, an omission that is critical in emerging markets. This research addresses this gap by examining the BEV market diffusion of both vehicle types in an integrated framework, utilizing an agent-based model that involves monetary factors, infrastructure availability, consumer preferences, and local socioeconomic conditions. Applying the model to the Greater Jakarta Area, a metropolitan city in an emerging market, the results indicate that robust policy measures could boost the diffusion of both BEV passenger cars and motorcycles to approximately 82 % of the total vehicle stock by 2050. BEV passenger cars may achieve price parity as early as 2024, whereas BEV motorcycles are expected to follow in 2026. Consumer preferences and infrastructure availability are critical to BEV diffusion, especially for electric motorcycles. In addition, total motorcycle stocks are projected to decline after 2036 due to the potential mode shift to passenger cars as socioeconomic conditions improve. Overall, strong supports on both BEV types' uptake could lower transport-sector greenhouse-gas emissions by up to 65 % by 2050.</div></div>","PeriodicalId":49209,"journal":{"name":"Energy for Sustainable Development","volume":"88 ","pages":"Article 101772"},"PeriodicalIF":4.4,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144330358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fachry Abdul Razak Afifi , Alin Halimatussadiah , Robi Kurniawan , Doan Nainggolan
{"title":"Household preferences for rooftop solar photovoltaic systems: Evidence from a survey-based study in five Indonesian cities","authors":"Fachry Abdul Razak Afifi , Alin Halimatussadiah , Robi Kurniawan , Doan Nainggolan","doi":"10.1016/j.esd.2025.101771","DOIUrl":"10.1016/j.esd.2025.101771","url":null,"abstract":"<div><div>Understanding the underlying decisions of rooftop solar PV adopters in emerging markets like Indonesia is crucial for accelerating the deployment of the technology. Despite its potential, utilization has remained low. This study aims to characterize household preferences towards rooftop solar PV installations and to examine the influence of sociodemographic characteristics on those preferences. Data is collected through an online survey conducted in five major cities in Indonesia. This study adapts the features of the double-bounded Contingent Valuation Method (CVM) to elicit preferences. The findings indicate that while most respondents are willing to install solar PV on their rooftops, the overall degree of their preference is generally low. Key determinants of their preferences include education, age, household income, head of household status, and residential location, with social networks also playing a significant role. Specifically, membership in environmental communities increases the likelihood of adoption by 18.4 %, while exposure to peers with solar PV installations is linked to a 16.5 % higher probability of installation. This empirical evidence suggests that policymakers need to develop a comprehensive strategy to maximize uptake and highlights the importance of designing differentiated and targeted policies to support a more inclusive clean energy transition.</div></div>","PeriodicalId":49209,"journal":{"name":"Energy for Sustainable Development","volume":"88 ","pages":"Article 101771"},"PeriodicalIF":4.4,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144307573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}