Pub Date : 2025-03-03DOI: 10.1016/j.rser.2025.115541
A. Uliasz–Bocheńczyk , R. Wiśniowski
Hydrogen is poised to play a key role in future energy systems as the European Union transitions from fossil fuels to meet the goals of the European Green Deal. Geological storage of hydrogen in underground porous media is a promising technology for energy storage solutions. Ensuring the safety of this process is important, with well integrity being a critical safety element. Consequently, safety considerations must be integrated into the planning stage of hydrogen storage projects. Injection and liquidated openings are the most likely routes of leakage, particularly due to various factors, such as corrosion, including the excessive porosity and permeability of hardened sealing slurries. Currently, there is a lack of research focusing on the impact of hydrogen on cement slurry, despite its importance in terms of storage safety. Therefore, we analysed the effect of hydrogen on the technological parameters, as well as the physical and chemical properties of cement slurries utilised in drilling technologies for geological storage. This review offers a comprehensive overview of recent advances in hydrogen resistance testing of slurries composed of different cements. Notably, it addresses the research gap pertaining to the hydrogen resistance of cement slurries, highlighting the need for further investigations in this area.
{"title":"Impact of hydrogen on cement slurry: A review","authors":"A. Uliasz–Bocheńczyk , R. Wiśniowski","doi":"10.1016/j.rser.2025.115541","DOIUrl":"10.1016/j.rser.2025.115541","url":null,"abstract":"<div><div>Hydrogen is poised to play a key role in future energy systems as the European Union transitions from fossil fuels to meet the goals of the European Green Deal. Geological storage of hydrogen in underground porous media is a promising technology for energy storage solutions. Ensuring the safety of this process is important, with well integrity being a critical safety element. Consequently, safety considerations must be integrated into the planning stage of hydrogen storage projects. Injection and liquidated openings are the most likely routes of leakage, particularly due to various factors, such as corrosion, including the excessive porosity and permeability of hardened sealing slurries. Currently, there is a lack of research focusing on the impact of hydrogen on cement slurry, despite its importance in terms of storage safety. Therefore, we analysed the effect of hydrogen on the technological parameters, as well as the physical and chemical properties of cement slurries utilised in drilling technologies for geological storage. This review offers a comprehensive overview of recent advances in hydrogen resistance testing of slurries composed of different cements. Notably, it addresses the research gap pertaining to the hydrogen resistance of cement slurries, highlighting the need for further investigations in this area.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":"214 ","pages":"Article 115541"},"PeriodicalIF":16.3,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143528807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-03DOI: 10.1016/j.rser.2025.115569
Xingping Yuan , Lijie Guo , Qinghui Lv , Dan Zhao , Hua Liao , Wenhui Ma , Qingyun Jiang , Gang Xie , Yanqing Hou , Jinglei Shen
Electronic-grade polysilicon is a critical raw material for the high-performance semiconductor industry, requiring extremely high purity levels. The control of impurity content during the production process has a decisive impact on the quality and performance of the final product. The development and improvement of production processes to achieve precise control of impurity content is the core challenge for the industrialized preparation of electronic-grade polysilicon. Based on a brief introduction of the main production processes, this review systematically reviews the impurity sources and effective control strategies in the production of electronic-grade polysilicon based on the modified Siemens process, including the synthesis of raw materials, the distillation and purification of trichlorosilane, the reduction of trichlorosilane, and the separation and recycling of tail gas. Finally, the technical challenges faced in the current production process are pointed out, and look forward to further directions for improving production efficiency and optimizing impurity control in the industrialized preparation of electronic-grade polysilicon. The advancement of new processes, improvement of impurity control strategies, optimization of existing production techniques and equipment, upgrading of resource recycling systems, and the development of intelligent control and automated production technology will be essential drivers for the continued advancement of electronic-grade polysilicon production technology.
{"title":"Product quality research in the industrialized preparation of electronic grade polysilicon: A review of impurity sources and control strategies","authors":"Xingping Yuan , Lijie Guo , Qinghui Lv , Dan Zhao , Hua Liao , Wenhui Ma , Qingyun Jiang , Gang Xie , Yanqing Hou , Jinglei Shen","doi":"10.1016/j.rser.2025.115569","DOIUrl":"10.1016/j.rser.2025.115569","url":null,"abstract":"<div><div>Electronic-grade polysilicon is a critical raw material for the high-performance semiconductor industry, requiring extremely high purity levels. The control of impurity content during the production process has a decisive impact on the quality and performance of the final product. The development and improvement of production processes to achieve precise control of impurity content is the core challenge for the industrialized preparation of electronic-grade polysilicon. Based on a brief introduction of the main production processes, this review systematically reviews the impurity sources and effective control strategies in the production of electronic-grade polysilicon based on the modified Siemens process, including the synthesis of raw materials, the distillation and purification of trichlorosilane, the reduction of trichlorosilane, and the separation and recycling of tail gas. Finally, the technical challenges faced in the current production process are pointed out, and look forward to further directions for improving production efficiency and optimizing impurity control in the industrialized preparation of electronic-grade polysilicon. The advancement of new processes, improvement of impurity control strategies, optimization of existing production techniques and equipment, upgrading of resource recycling systems, and the development of intelligent control and automated production technology will be essential drivers for the continued advancement of electronic-grade polysilicon production technology.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":"214 ","pages":"Article 115569"},"PeriodicalIF":16.3,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143528808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-03DOI: 10.1016/j.rser.2025.115518
Princewill Okwoche , Milan Ščasný , Amin Karimu
Pervasive informal economies can significantly hinder efforts to improve energy efficiency. This study investigates the complex relationship between informality and energy efficiency in African countries, focusing on linear, nonlinear, and asymmetric effects. The research aims to clarify how varying levels of informality affect energy efficiency and the intervening roles of foreign direct investment (FDI) and institutional quality. Employing a panel dataset of 46 African countries from 1990 to 2017, the study utilizes Stochastic Frontier Analysis to derive energy efficiency scores. It applies panel autoregressive distributed lag and the dynamic panel threshold models to assess the effects of informality. Findings from the linear model reveal that informality may have some initial beneficial effects on energy efficiency. Further evidence of nonlinearity is strongly supported, showing that informality may improve energy efficiency only up to a threshold of between 41 and 42 % of GDP, beyond which it becomes detrimental to its performance. Similarly, compelling evidence of asymmetric effects is reported: positive and negative shocks have increasing and decreasing effects on energy efficiency, respectively. Additional evidence indicates that FDI lowers energy efficiency, whereas governance quality is associated with improved energy efficiency. Lastly, FDI mitigates the negative effect of informality in line with the halo effect. These results reflect the heterogeneous effects of informality that have been reported by prior studies. Policy recommendations based on these findings are discussed.
{"title":"Informal economies and energy efficiency: Empirical evidence from African countries","authors":"Princewill Okwoche , Milan Ščasný , Amin Karimu","doi":"10.1016/j.rser.2025.115518","DOIUrl":"10.1016/j.rser.2025.115518","url":null,"abstract":"<div><div>Pervasive informal economies can significantly hinder efforts to improve energy efficiency. This study investigates the complex relationship between informality and energy efficiency in African countries, focusing on linear, nonlinear, and asymmetric effects. The research aims to clarify how varying levels of informality affect energy efficiency and the intervening roles of foreign direct investment (FDI) and institutional quality. Employing a panel dataset of 46 African countries from 1990 to 2017, the study utilizes Stochastic Frontier Analysis to derive energy efficiency scores. It applies panel autoregressive distributed lag and the dynamic panel threshold models to assess the effects of informality. Findings from the linear model reveal that informality may have some initial beneficial effects on energy efficiency. Further evidence of nonlinearity is strongly supported, showing that informality may improve energy efficiency only up to a threshold of between 41 and 42 % of GDP, beyond which it becomes detrimental to its performance. Similarly, compelling evidence of asymmetric effects is reported: positive and negative shocks have increasing and decreasing effects on energy efficiency, respectively. Additional evidence indicates that FDI lowers energy efficiency, whereas governance quality is associated with improved energy efficiency. Lastly, FDI mitigates the negative effect of informality in line with the <em>halo effect</em>. These results reflect the heterogeneous effects of informality that have been reported by prior studies. Policy recommendations based on these findings are discussed.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":"214 ","pages":"Article 115518"},"PeriodicalIF":16.3,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143528806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-01DOI: 10.1016/j.rser.2025.115546
Jisoo Shim , Doosam Song
The rise of single-person households globally is reshaping the residential building sector, yet their energy consumption patterns have been largely overlooked. This study analyzes data from 518 households in South Korea over one year, revealing significant insights into single-person households’ energy use. Single-person households consume 2.69 times more heating energy, 1.66 times more electricity, and 1.55 times more domestic hot water per capita than multi-person households. Employed individuals in these households, who spend less time at home, consume more heating energy due to inefficient Heating, Ventilation, and Air Conditioning (HVAC) control behaviors, wasting 43.6 % of heating energy. The study highlights the urgent need for targeted energy policies and technological innovations tailored to single-person households. Current policies designed for multi-person households fail to address their unique needs. Proposed measures include revised building energy performance standards, optimized HVAC system sizing, and floor plan designs that consider the distinct occupancy patterns of single-person households. By addressing these challenges, policymakers and technologists can reduce energy consumption and support global carbon neutrality goals.
{"title":"Unveiling energy inefficiencies: A study on building energy consumption in single-person households","authors":"Jisoo Shim , Doosam Song","doi":"10.1016/j.rser.2025.115546","DOIUrl":"10.1016/j.rser.2025.115546","url":null,"abstract":"<div><div>The rise of single-person households globally is reshaping the residential building sector, yet their energy consumption patterns have been largely overlooked. This study analyzes data from 518 households in South Korea over one year, revealing significant insights into single-person households’ energy use. Single-person households consume 2.69 times more heating energy, 1.66 times more electricity, and 1.55 times more domestic hot water per capita than multi-person households. Employed individuals in these households, who spend less time at home, consume more heating energy due to inefficient Heating, Ventilation, and Air Conditioning (HVAC) control behaviors, wasting 43.6 % of heating energy. The study highlights the urgent need for targeted energy policies and technological innovations tailored to single-person households. Current policies designed for multi-person households fail to address their unique needs. Proposed measures include revised building energy performance standards, optimized HVAC system sizing, and floor plan designs that consider the distinct occupancy patterns of single-person households. By addressing these challenges, policymakers and technologists can reduce energy consumption and support global carbon neutrality goals.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":"214 ","pages":"Article 115546"},"PeriodicalIF":16.3,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-01DOI: 10.1016/j.rser.2025.115517
Wanan Sheng
This paper presents an experimental investigation to a solution on the conventional cylindrical oscillating water column (OWC) wave energy converter (WEC), with a heave plate being attached below of the cylindrical OWC. Such a simple solution could change the hydrodynamics of the cylindrical OWC device dramatically due to the significant increase of the added mass and damping coefficient to the structure motions, in particular, the natural period of the structural heave motion could be greatly increased while the natural period of the water body remains almost unchanged. As such, the enlarged difference between these two natural periods means a large relative motion between them over a wider bandwidth, hence the improved OWC could absorb wave energy more efficiently over a larger bandwidth of the wave frequencies (or periods). This is especially beneficial for the device extracting energy from ocean waves efficiently, since ocean waves inherently contain multiple periods. Meanwhile, such a solution could maintain the simplicity for the OWC structure, and a shallow draft OWC device could be possible while its energy conversion capacity is not comprised. In this work, an experimental investigation is conducted on the improved cylindrical OWC (floating), with the aims at proving the concept: with a heave plate attached to the OWC, its wave energy extraction capacity can be dramatically increased. In addition, the device motions can be effectively reduced, which is also very beneficial for the mooring and cable connections, as well as the accessibility to the device in seas, so for reducing the cost of wave energy production further.
{"title":"An experimental study for improving performance of a cylindrical OWC WEC with a heave plate","authors":"Wanan Sheng","doi":"10.1016/j.rser.2025.115517","DOIUrl":"10.1016/j.rser.2025.115517","url":null,"abstract":"<div><div>This paper presents an experimental investigation to a solution on the conventional cylindrical oscillating water column (OWC) wave energy converter (WEC), with a heave plate being attached below of the cylindrical OWC. Such a simple solution could change the hydrodynamics of the cylindrical OWC device dramatically due to the significant increase of the added mass and damping coefficient to the structure motions, in particular, the natural period of the structural heave motion could be greatly increased while the natural period of the water body remains almost unchanged. As such, the enlarged difference between these two natural periods means a large relative motion between them over a wider bandwidth, hence the improved OWC could absorb wave energy more efficiently over a larger bandwidth of the wave frequencies (or periods). This is especially beneficial for the device extracting energy from ocean waves efficiently, since ocean waves inherently contain multiple periods. Meanwhile, such a solution could maintain the simplicity for the OWC structure, and a shallow draft OWC device could be possible while its energy conversion capacity is not comprised. In this work, an experimental investigation is conducted on the improved cylindrical OWC (floating), with the aims at proving the concept: with a heave plate attached to the OWC, its wave energy extraction capacity can be dramatically increased. In addition, the device motions can be effectively reduced, which is also very beneficial for the mooring and cable connections, as well as the accessibility to the device in seas, so for reducing the cost of wave energy production further.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":"214 ","pages":"Article 115517"},"PeriodicalIF":16.3,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-01DOI: 10.1016/j.rser.2025.115551
Hai-Tra Nguyen , Abdulrahman H. Ba-Alawi , Nivethitha Somu , Roberto Chang-Silva , ChangKyoo Yoo
The increasing adoption of net-negative emission (N-NE) technologies, such as renewables, integrated carbon capture and storage (CCS), and potential CO2 regeneration, is crucial to address energy poverty (SDG-7 and SDG-11) and reduce global CO2 emission intensity (SDG-13) in non-OECD countries. This study proposes a smart management energy-emission nexus framework for a sustainable energy distribution network (EDN) and CO2 emission mitigation. The framework integrates flexible demand response, bidirectional supply regulation and carbon-capture capacity planning to optimize the energy performance and avoid wasted storage and generation capacity. It incorporates sustainable transaction governance and conservation strategies to mitigate, supply overload, and minimize CO2 emission intensity. A smart multi-criteria decision-making (MCDM) procedure with abnormality detection ensure real-time operation and long-term energy-emission nexus management. The framework is validated through a case study in Vietnam, demonstrating a 62.25 % reduction in electricity shortages, an 85.1 % improvement in storage capacity, and a 21.5 % increase in CCS-driven emission restriction. The system regenerates 0.72 kWh of electricity from captured CO2 emission, achieving a robust reliability rate of 0.71 and a consumer satisfaction score of 0.81 with high economic energy rate of 0.05. The proposed strategies effectively optimize energy distribution and CO2 emission reduction, contributing to enhanced energy efficiency, sustainability, and resilience in emerging economies.
{"title":"Smart multi-stage energy-emission nexus framework for sustainable supply-demand management and CO2 mitigation","authors":"Hai-Tra Nguyen , Abdulrahman H. Ba-Alawi , Nivethitha Somu , Roberto Chang-Silva , ChangKyoo Yoo","doi":"10.1016/j.rser.2025.115551","DOIUrl":"10.1016/j.rser.2025.115551","url":null,"abstract":"<div><div>The increasing adoption of net-negative emission (N-NE) technologies, such as renewables, integrated carbon capture and storage (CCS), and potential CO<sub>2</sub> regeneration, is crucial to address energy poverty (SDG-7 and SDG-11) and reduce global CO<sub>2</sub> emission intensity (SDG-13) in non-OECD countries. This study proposes a smart management energy-emission nexus framework for a sustainable energy distribution network (EDN) and CO<sub>2</sub> emission mitigation. The framework integrates flexible demand response, bidirectional supply regulation and carbon-capture capacity planning to optimize the energy performance and avoid wasted storage and generation capacity. It incorporates sustainable transaction governance and conservation strategies to mitigate, supply overload, and minimize CO<sub>2</sub> emission intensity. A smart multi-criteria decision-making (MCDM) procedure with abnormality detection ensure real-time operation and long-term energy-emission nexus management. The framework is validated through a case study in Vietnam, demonstrating a 62.25 % reduction in electricity shortages, an 85.1 % improvement in storage capacity, and a 21.5 % increase in CCS-driven emission restriction. The system regenerates 0.72 kWh of electricity from captured CO<sub>2</sub> emission, achieving a robust reliability rate of 0.71 and a consumer satisfaction score of 0.81 with high economic energy rate of 0.05. The proposed strategies effectively optimize energy distribution and CO<sub>2</sub> emission reduction, contributing to enhanced energy efficiency, sustainability, and resilience in emerging economies.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":"214 ","pages":"Article 115551"},"PeriodicalIF":16.3,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-01DOI: 10.1016/j.rser.2025.115557
Canyu Lv , Zhichao Liu , Fazhou Wang , Shuguang Hu
The rapid increase in industrial solid wastes (ISW) worldwide poses significant challenges for waste management, with landfilling proving insufficient. ISW utilization offers a promising route for valorizing the stockpiled and freshly produced solid wastes from various industries. This review examines the potential of alkaline ISWs, enriched in calcium silicate minerals, calcium hydroxide, and magnesia, to transform CO2 into building products. Key ISWs with high carbonation reactivity and cementing properties include steel slag, magnesium slag, yellow phosphorous slag, and calcium-silica slag. A comprehensive understanding of phase formation mechanisms and composition characteristics during the pyrometallurgical processes of these ISWs is provided. Their properties are further summarized, highlighting the impact of the different properties on the applications, with steel and magnesium slags showing better prospects in a comprehensive view. The current status of applications is reviewed, highlighting several building products that have been developed to hold promises for commercial applications. Current application status is also reviewed along with two cases of application using steel slag and magnesium slag to make building products on the pilot and industrial scales. This review aims to contribute to the development of sustainable building materials and effective waste management solutions, thereby promoting industrial symbiosis and reducing environmental impacts.
{"title":"Industrial solid wastes as carbonatable binders for abating CO2 emission","authors":"Canyu Lv , Zhichao Liu , Fazhou Wang , Shuguang Hu","doi":"10.1016/j.rser.2025.115557","DOIUrl":"10.1016/j.rser.2025.115557","url":null,"abstract":"<div><div>The rapid increase in industrial solid wastes (ISW) worldwide poses significant challenges for waste management, with landfilling proving insufficient. ISW utilization offers a promising route for valorizing the stockpiled and freshly produced solid wastes from various industries. This review examines the potential of alkaline ISWs, enriched in calcium silicate minerals, calcium hydroxide, and magnesia, to transform CO<sub>2</sub> into building products. Key ISWs with high carbonation reactivity and cementing properties include steel slag, magnesium slag, yellow phosphorous slag, and calcium-silica slag. A comprehensive understanding of phase formation mechanisms and composition characteristics during the pyrometallurgical processes of these ISWs is provided. Their properties are further summarized, highlighting the impact of the different properties on the applications, with steel and magnesium slags showing better prospects in a comprehensive view. The current status of applications is reviewed, highlighting several building products that have been developed to hold promises for commercial applications. Current application status is also reviewed along with two cases of application using steel slag and magnesium slag to make building products on the pilot and industrial scales. This review aims to contribute to the development of sustainable building materials and effective waste management solutions, thereby promoting industrial symbiosis and reducing environmental impacts.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":"214 ","pages":"Article 115557"},"PeriodicalIF":16.3,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-01DOI: 10.1016/j.rser.2025.115566
Tingting He , Yihua Hu , Fashuai Li , Yuwei Chen , Maoxin Zhang , Qiming Zheng , Yukan Jin , He Ren
Global wind power generation has grown rapidly in recent years, with China emerging as the world's largest market. Wind turbines, the key devices for this generation, are widely distributed both on land and at sea. Accurate mapping and regular updates of their locations are essential for energy production predictions, efficiency assessment, and environmental impact evaluation. While satellite remote sensing facilitates rapid mapping of offshore wind turbines, methods for detecting land-based wind turbines remain underdeveloped. To address this issue, this study proposes a novel framework for wind turbine detection using Sentinel-2 MSI data and generates the first map of both land- and offshore-based wind turbines in China in 2023. A total of 148,181 land- and 7,541 offshore-based wind turbines are detected with satisfactory accuracy (OA = 0.964, F-score = 0.963). We find that land-based turbines are primarily concentrated in northwest and north China, with the largest numbers found in Inner Mongolia, Xinjiang, Hebei, and Gansu provinces (>10,000 units). Inner Mongolia is the leading contributor, with over 23,000 units. These turbines are mainly located in areas with low altitudes, gentle slopes, strong winds, and surrounding land cover types of grasslands, cropland, and barren land. Offshore turbines are mostly found in nearshore areas with uniform distribution. This wind turbine map provides essential information for predicting wind power production, optimizing wind farm sites, and evaluating environmental impacts. Moreover, the proposed approach relies entirely on Sentinel-2 data, currently the highest-resolution open-access satellite data globally, providing valuable support for wind turbine localization and installation date updates.
{"title":"Mapping land- and offshore-based wind turbines in China in 2023 with Sentinel-2 satellite data","authors":"Tingting He , Yihua Hu , Fashuai Li , Yuwei Chen , Maoxin Zhang , Qiming Zheng , Yukan Jin , He Ren","doi":"10.1016/j.rser.2025.115566","DOIUrl":"10.1016/j.rser.2025.115566","url":null,"abstract":"<div><div>Global wind power generation has grown rapidly in recent years, with China emerging as the world's largest market. Wind turbines, the key devices for this generation, are widely distributed both on land and at sea. Accurate mapping and regular updates of their locations are essential for energy production predictions, efficiency assessment, and environmental impact evaluation. While satellite remote sensing facilitates rapid mapping of offshore wind turbines, methods for detecting land-based wind turbines remain underdeveloped. To address this issue, this study proposes a novel framework for wind turbine detection using Sentinel-2 MSI data and generates the first map of both land- and offshore-based wind turbines in China in 2023. A total of 148,181 land- and 7,541 offshore-based wind turbines are detected with satisfactory accuracy (OA = 0.964, F-score = 0.963). We find that land-based turbines are primarily concentrated in northwest and north China, with the largest numbers found in Inner Mongolia, Xinjiang, Hebei, and Gansu provinces (>10,000 units). Inner Mongolia is the leading contributor, with over 23,000 units. These turbines are mainly located in areas with low altitudes, gentle slopes, strong winds, and surrounding land cover types of grasslands, cropland, and barren land. Offshore turbines are mostly found in nearshore areas with uniform distribution. This wind turbine map provides essential information for predicting wind power production, optimizing wind farm sites, and evaluating environmental impacts. Moreover, the proposed approach relies entirely on Sentinel-2 data, currently the highest-resolution open-access satellite data globally, providing valuable support for wind turbine localization and installation date updates.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":"214 ","pages":"Article 115566"},"PeriodicalIF":16.3,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-28DOI: 10.1016/j.rser.2025.115521
Wenjia Lu, Jiyang Fu, Nan Wu, Yuncheng He
The fatigue performance of vibration energy harvesters directly impacts their reliability and longevity in practical applications, making it to be crucial to study their fatigue behavior. However, current research in this area remains insufficient. This study systematically reviews the fatigue performance of piezoelectric, electromagnetic, and electrostatic energy harvesters, with a focus on analyzing the differences in fatigue behavior across various materials and structural designs and their effects on harvester lifespan. The work begins by introducing the energy transduction mechanisms in vibration energy harvesting systems and the associated fatigue issues, followed by an assessment of relevant research methodologies. The influence of piezoelectric materials and harvester structural design on fatigue performance is then explored, revealing the impacts of material fatigue damage, stress concentration, and adhesive interface problems on device longevity. For electromagnetic and electrostatic energy harvesters, this analysis highlights current research gaps, particularly in the areas of mechanical wear and charge leakage. The study further discusses methods to enhance harvester fatigue performance through material selection and structural optimization and suggests that future research should focus on the development of new materials, structural improvements, and the investigation of fatigue performance under multiple environmental conditions. This work provides a comprehensive review and quantitative analysis of fatigue in vibration energy harvesters, aiming to advance the field.
{"title":"Fatigue in vibration energy harvesters: State-of-the-art review","authors":"Wenjia Lu, Jiyang Fu, Nan Wu, Yuncheng He","doi":"10.1016/j.rser.2025.115521","DOIUrl":"10.1016/j.rser.2025.115521","url":null,"abstract":"<div><div>The fatigue performance of vibration energy harvesters directly impacts their reliability and longevity in practical applications, making it to be crucial to study their fatigue behavior. However, current research in this area remains insufficient. This study systematically reviews the fatigue performance of piezoelectric, electromagnetic, and electrostatic energy harvesters, with a focus on analyzing the differences in fatigue behavior across various materials and structural designs and their effects on harvester lifespan. The work begins by introducing the energy transduction mechanisms in vibration energy harvesting systems and the associated fatigue issues, followed by an assessment of relevant research methodologies. The influence of piezoelectric materials and harvester structural design on fatigue performance is then explored, revealing the impacts of material fatigue damage, stress concentration, and adhesive interface problems on device longevity. For electromagnetic and electrostatic energy harvesters, this analysis highlights current research gaps, particularly in the areas of mechanical wear and charge leakage. The study further discusses methods to enhance harvester fatigue performance through material selection and structural optimization and suggests that future research should focus on the development of new materials, structural improvements, and the investigation of fatigue performance under multiple environmental conditions. This work provides a comprehensive review and quantitative analysis of fatigue in vibration energy harvesters, aiming to advance the field.</div></div>","PeriodicalId":418,"journal":{"name":"Renewable and Sustainable Energy Reviews","volume":"214 ","pages":"Article 115521"},"PeriodicalIF":16.3,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-28DOI: 10.1016/j.rser.2025.115547
Yongjing Xie, Boqiang Lin
Renewable energy projects are characterized by substantial investment costs and significant capital requirements. In the context of reduced government subsidies, financial leasing has emerged as a crucial funding source for Chinese renewable energy projects. However, whether financial leasing can become an effective strategic choice to promote renewable energy investment in China remains to be empirically tested. Utilizing microdata from 114 Chinese renewable energy companies from 2011 to 2022, we have derived the following research conclusions: (1) Financial leasing significantly facilitates renewable energy investment. Bootstrap testing indicates that financial leasing can indirectly enhance renewable energy investment by alleviating financing constraints. (2) Financial mismatches undermine the positive impact of financial leasing on renewable energy investment. (3) Financial leasing significantly affects the investments of small and medium-sized renewable energy enterprises receiving lower government subsidies. However, no statistically significant evidence suggests a similar effect for large firms with substantial government subsidies. (4) There is a substitution effect between financial leasing and government subsidies. As government subsidies decline, the role of financial leasing in promoting renewable energy investment becomes increasingly significant. Based on these findings, we proposed targeted policy recommendations.
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