Renewable Energy最新文献

{"title":"Exploring biogas and biofertilizer resource recovery potential from kitchen waste and fecal sludge in decentralized settings: the case of Dar es Salaam, Tanzania","authors":"Franella Francos Halla ,&nbsp;Lise Appels ,&nbsp;Jacob Mabula Kihila ,&nbsp;Jo De Vrieze","doi":"10.1016/j.renene.2026.125356","DOIUrl":"10.1016/j.renene.2026.125356","url":null,"abstract":"<div><div>Most peri-urban areas in sub-Saharan Africa and similar regions do not incorporate sustainable organic waste management towards integrated resource recovery. Here, we explored the potential of kitchen waste and fecal sludge for the production of biogas and biofertilizers through anaerobic digestion at Kizito Huonjwa Street, Kigamboni Municipality in Dar es Salaam, Tanzania. A questionnaire was carried out, combined with interactive interviews with key informants and focus group discussion. The biogas and biofertilizer production potential from kitchen waste and fecal sludge were analyzed in three scenarios, focusing on kitchen waste only, fecal sludge only, and their combination. The highest biogas yields were achieved from the co-digestion of kitchen waste and fecal sludge, related to the available estimated feedstock quantities. Biogas production could reduce energy costs by up to 2.07 USD.day⁻¹ for households currently relying on charcoal, and up to 0.79 USD.day⁻¹ for households using liquefied petroleum gas for cooking and heating. The produced biofertilizers could reduce fertilizer costs by up to 72.6 % by replacing the currently used synthetic fertilizers. Overall, kitchen waste and fecal sludge offer great potential in bio-energy recovery and biofertilizer production, and decentralized resource recovery approaches in sub-Saharan Africa could be both sustainable and economically feasible.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"262 ","pages":"Article 125356"},"PeriodicalIF":9.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186269","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}

{"title":"Hydrophobic-hydrophilic Janus anodic aluminum oxide membrane via physical deposition for enhanced interfacial water evaporation","authors":"Enyu Wang ,&nbsp;Yanqing Li ,&nbsp;Tao Sun ,&nbsp;Jiaqi Zhang ,&nbsp;Lanlan Wu ,&nbsp;Shuiping Yan","doi":"10.1016/j.renene.2026.125337","DOIUrl":"10.1016/j.renene.2026.125337","url":null,"abstract":"<div><div>Solar-driven interfacial evaporation of water has attracted an increasing attention for clean water production due to its energy efficiency and environmental friendliness. However, it still suffers from the relatively low water evaporation rate, generally due to the limited water transport capacity of conventional evaporators and challenges in fabricating the precisely controlled air-water interface. In this study, we developed a simple and scalable physical deposition method to fabricate two types of hydrophobic-hydrophilic Janus anodic aluminum oxide (AAO) membrane evaporators. The hydrophobically modified TiO₂ or carbon nanotube (CNT) were coated onto one surface of hydrophilic AAO membrane by using a polyvinylidene fluoride (PVDF) binder to achieve a hydrophobic membrane surface, while the other AAO membrane surface was still hydrophilic. Under heating-driven conditions, the TiO₂-coated Janus membrane with asymmetric water contact angles of 117.38 ± 5.83°/55.42 ± 4.35°achieved a high water evaporation rate of 1.31 kg/m²·h at 45 °C (bulk water temperature), which was 56.32 % higher than the natural evaporation. This increased water evaporate rate was mainly attributed to a system-level synergy between a rapid capillary-driven water transport through the nanochannels and an enhanced heat and mass transfer at the Janus interface, as evidenced by a reduction in intrinsic phase transition barrier driven by the Janus interface, resulting in a low apparent evaporation enthalpy of water with 1635 kJ/kg. Moreover, driven by solar energy, the CNT-coated Janus membrane (3.18 mg-CNT/cm² loading) exhibited an excellent water evaporation rate of 3.13 kg/m²·h under 1 sun illumination (1 kW/m²), which was 42.27 % higher than TiO₂-coated Janus membrane, demonstrating a superior photothermal conversion efficiency. Furthermore, the CNT-coated Janus AAO membrane evaporator was also successfully adopted to concentrate the dark biogas slurry featured with a strong solar absorption performance, a ∼4 % improvement in water evaporation efficiency and a high ammonia nitrogen rejection rate of ∼91 % were achieved when compared to the natural evaporation, confirming its practical potential for wastewater concentration and nutrient recovery.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"262 ","pages":"Article 125337"},"PeriodicalIF":9.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146096111","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}

{"title":"Advanced fully analytical model for U-shaped closed-loop geothermal system: Heat transport and system performance","authors":"Wenying Tang ,&nbsp;Zixu Hu ,&nbsp;Yilong Yuan ,&nbsp;Dongxue Hao ,&nbsp;Rong Chen ,&nbsp;Jianqing Lin ,&nbsp;Bo Feng ,&nbsp;Tianfu Xu","doi":"10.1016/j.renene.2026.125381","DOIUrl":"10.1016/j.renene.2026.125381","url":null,"abstract":"<div><div>The U-shaped closed-loop geothermal system is a key direction for geothermal development due to its high flow rate and heat extraction. Accurate performance evaluation is essential to improve utilization efficiency. Traditional analytical models inadequately describe energy transfer, while numerical simulations are complex and time-consuming, hindering rapid assessment and mechanistic analysis. This study proposes a novel fully analytical wellbore–reservoir coupling model for deep U-shaped closed-loop systems, capturing heat transfer between formation and wellbore. The model precisely analyzes the process with minimal computation, overcomes numerical-simulation limitations, and agrees well with field data. Using this model, multi-factor coupling parameter impacts are quantified: increasing drilling depth has the most significant effect on enhancing heat production efficiency, and heat loss in the shallow wellbore section is negligible, with no significant impact on overall performance. The findings provide valuable guidance for optimizing and applying U-shaped closed-loop systems under diverse geological conditions.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"262 ","pages":"Article 125381"},"PeriodicalIF":9.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186253","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}

{"title":"Renewable energy and climate change mitigation: A legal framework for sustainable transitions in Nigeria and beyond","authors":"Olusola Joshua Olujobi,&nbsp;Nachanuya Silas Abangu","doi":"10.1016/j.renene.2026.125374","DOIUrl":"10.1016/j.renene.2026.125374","url":null,"abstract":"<div><div>This paper examines how Nigerian laws have been utilised to promote electricity generation from renewable energy sources as a means of addressing climate change. It explores the intricate interconnection between laws and the advancement of renewable energy programmes. Amidst inadequate energy access and significant emissions levels, Nigeria finds itself at a critical stage of energy law transition. Employing doctrinal legal research methodology, the study analyses existing Nigerian renewable energy laws and relevant international legal instruments to assess the prospects and challenges in this sector. A key finding is the absence of an integrated legal framework necessary for fostering an enabling environment for renewable energy deployment. The paper proposes a hybrid legal model that incorporates statutory reforms, regulatory incentives, and multi-stakeholder engagement. It further argues that Nigeria's over-reliance on fossil fuels impedes the growth of renewable energy, contravening its commitments under the Paris Agreement 2015. Beyond diagnosing challenges, the study outlines opportunities for growth, recommending the establishment of a specialised renewable energy statutory authority to oversee renewable energy development. It also advances policy and legal strategies for promoting investment, ensuring a just and sustainable energy transition, and creating a favourable environment for foreign direct investment, thereby enhancing Nigeria's energy security and economic resilience.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"262 ","pages":"Article 125374"},"PeriodicalIF":9.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186237","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}

{"title":"Multi-agent-based modeling of stakeholder dynamics in renewable energy markets: Towards enhanced policy-making and sustainable energy transition","authors":"Ruixiaoxiao Zhang ,&nbsp;Minhyun Lee ,&nbsp;Lijie Huang ,&nbsp;Shiqi Mei","doi":"10.1016/j.renene.2026.125369","DOIUrl":"10.1016/j.renene.2026.125369","url":null,"abstract":"<div><div>To address climate change and promote renewable energy (RE), a comprehensive understanding of decision-making and interactions among different stakeholders, including the government, utility companies, and business and residential sectors, is pivotal. This study proposes a multi-agent-based model to simulate the behaviors and interactions of these stakeholders, focusing on solar photovoltaic (PV) adoption under the Hong Kong Climate Action Plan 2030+ (HKCAP 2030+). The projection horizon extends to 2050, with milestones at 2035 and 2050 following HKCAP 2030+. The simulation results indicate that by 2050: (i) coal consumption significantly falls by 99.46% and natural gas consumption rises by 69.18%; (ii) RE installed capacity increases from 362.34 MW to 2365.99 MW; (iii) per capita carbon emissions decrease from 4.06 to 2.04 tonnes; and (iv) cumulative PV installed capacity reaches 931 MW, accounting for 2.64% of the electricity supply. These results suggest that HKCAP 2030+ mitigation targets are achievable under a business-as-usual pathway. However, meeting long-term goals, including carbon neutrality by 2050, will require additional strategic policy interventions, such as accelerating the cleaner energy transition, increasing investment in RE infrastructure, and expanding solar PV adoption, as relying solely on existing policies is insufficient to facilitate further RE development beyond 2030.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"262 ","pages":"Article 125369"},"PeriodicalIF":9.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186264","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}

{"title":"A computationally efficient model of a geothermal well for the Thermal Response Test (TRT) during drilling","authors":"Zahra Negahdari ,&nbsp;Jan Einar Gravdal ,&nbsp;Boris V. Balakin","doi":"10.1016/j.renene.2026.125363","DOIUrl":"10.1016/j.renene.2026.125363","url":null,"abstract":"<div><div>Thermal modeling of geothermal wells during drilling offers a practical and efficient approach to determine key thermal properties of subsurface formations, thereby facilitating the optimized design of geothermal energy systems. This study presents the development of a numerical model designed to predict the transient temperature distribution within a wellbore during active drilling operations. The model delineates the wellbore system into distinct thermal regions and formulates governing partial differential equations for each, capturing the effects of conduction, convection, internal heat generation, and time-dependent boundary conditions. The model’s capability is validated against the literature and a third-party code, demonstrating average discrepancies of 1.8% and 0.6%, respectively. Parametric simulations were conducted across a range of operational scenarios to evaluate the impact of critical drilling variables. We found that the outlet temperature of the drilling fluid changes by 30% during a 16-fold increase in the ground thermal conductivity and by 40% during a twofold reduction in the flow rate. The findings underscore the applicability of the model for real-time optimization and predictive control in geothermal drilling operations.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"262 ","pages":"Article 125363"},"PeriodicalIF":9.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186320","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}

{"title":"Development, performance and energy trade-off analyses of wind turbine precipitation-reactive control at offshore and onshore sites in Western Europe","authors":"M. Sergio Campobasso ,&nbsp;Matthew S. Rose ,&nbsp;Sanshodhan Shende ,&nbsp;Elisa Adirosi ,&nbsp;Giandomenico Pace ,&nbsp;Lorenzo De Silvestri ,&nbsp;Krystallia Dimitriadou ,&nbsp;Abhiram Vinod ,&nbsp;Charlotte Bay Hassager ,&nbsp;Fernando Sánchez ,&nbsp;Alessio Castorrini","doi":"10.1016/j.renene.2026.125357","DOIUrl":"10.1016/j.renene.2026.125357","url":null,"abstract":"<div><div>Leading edge erosion of wind turbine blades increases Annual Energy Production (AEP) losses and maintenance. Precipitation-Reactive Control (PRC) curtails rotor speed during erosive precipitation events, alleviating erosion but incurring curtailment-induced AEP losses. Using novel methods combining accurate wind and rain measurements and computationally efficient algorithms to select optimal precipitation metrics to steer PRC, the trade-offs of AEP losses for curtailment and erosion at an onshore site in England (Lancaster-Hazelrigg), and a Mediterranean and North Sea offshore site are evaluated. All analyses use time-series of wind speed from cup, sonic or lidar anemometers, and droplet size distributions from laser beam disdrometers. Varying levels of AEP losses for erosion are considered. The assessment at the Mediterranean site, with low erosivity, shows that PRC enables 25+ years of erosion-free operation with a 0.07% curtailment-induced AEP loss, against a 1% loss for moderate erosion. At Lancaster-Hazelrigg, the three-year mean AEP loss of 1.3% considering curtailment and erosion losses is lower than with standard control. The doubled erosion-free life gives a net positive contribution to cost of energy reductions. At the North Sea site, the three-year mean total AEP loss with PRC is higher than without, indicating the need for long-term cost analyses to evaluate PRC viability.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"262 ","pages":"Article 125357"},"PeriodicalIF":9.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186266","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}

{"title":"Clean hydrogen supply chain risks based on circular economy principles: A comparative decision-making framework with fuzzy information","authors":"Seyyed Jalaladdin Hosseini Dehshiri ,&nbsp;Ali Mostafaeipour","doi":"10.1016/j.renene.2026.125378","DOIUrl":"10.1016/j.renene.2026.125378","url":null,"abstract":"<div><div>The hydrogen Supply Chain (SC) greatly affects society, the environment, and the economy, making effective management crucial for sustainability. It can lower emissions, enhance energy security, and boost economic growth. Addressing risks and adopting Circular Economy (CE) principles can improve efficiency and cost-effectiveness. This study contributes by integrating CE principles into the hydrogen SC and provides a comparative fuzzy decision framework for identifying and prioritizing risks of hydrogen SC. To accurately analyze risks under uncertainty, a hybrid decision-making approach including the Fuzzy Step-wise Weight Assessment Ratio Analysis (F-SWARA) and the Fuzzy Weighted Aggregates Sum-Product ASsessment (F-WASPAS) methods is developed. The sensitivity of different scenarios is also investigated, as is comparative analysis using various techniques for decision-making. The weighting results indicate a strong preference for access to financial resources (0.227), adoption of reverse SC procedures (0.154), and consideration of the rate of return on investment (0.148). The results of the prioritization revealed that the most important risks include long-term financial uncertainty, high investment in hydrogen process technology, and fluctuations in the cost of renewable electricity. Suggested solutions include government support frameworks, banking facilities, new financing tools, local equipment production, and support for knowledge-based companies.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"262 ","pages":"Article 125378"},"PeriodicalIF":9.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186267","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}

{"title":"Enhancing public building sustainability through integrated solar photovoltaic-based microgrid pilots: commissioning, operation, and performance insights","authors":"Alexandros Arsalis ,&nbsp;Angelos Nousdilis ,&nbsp;Gianni Celli ,&nbsp;Vladislav Grigorovitch ,&nbsp;Aggelos Bouhouras ,&nbsp;Georgios Christoforidis ,&nbsp;Susanna Mocci ,&nbsp;Marina Grigorovitch ,&nbsp;Erez Gal ,&nbsp;George E. Georghiou","doi":"10.1016/j.renene.2026.125347","DOIUrl":"10.1016/j.renene.2026.125347","url":null,"abstract":"<div><div>The real-world performance and optimization potential of solar photovoltaic-battery energy storage system microgrids is implemented in public buildings across Mediterranean environments. Using data collected over an extended period, several aspects are evaluated, including system commissioning outcomes, operational behavior under varying time and seasonal conditions, and the effectiveness of scenario-based strategies. The latter aim at improving key performance indicators, such as self-consumption and self-sufficiency rates, which are analyzed across daily, weekly, and seasonal timescales. Moreover, scenario simulations explore the impact of varying photovoltaic and storage capacities as well as different levels of demand-side flexibility. Results show that instead of simply increasing the component capacity, it is more effective to increase load flexibility, which leads to the enhancement of system performance and the reduction of battery cycling. Moreover, factors such as occupancy schedules and climatic conditions significantly affect system behavior and optimization outcomes. The study demonstrates that integrating high-resolution monitoring data with scenario modeling offers valuable insights into the dynamic operation of photovoltaic-battery energy storage system microgrids. Across the four pilot sites, measured annual self-sufficiency rates reach up to 70–95 % under baseline operation, while scenario-based demand-side flexibility increases SSR by 10–25 percentage points compared to capacity scaling alone. Results consistently show that moderate load flexibility yields higher performance gains and lower battery cycling than equivalent increases in PV or storage capacity.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"262 ","pages":"Article 125347"},"PeriodicalIF":9.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146096109","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}

{"title":"Life Cycle Air Emissions External Costs of the current and future Italian electricity generation","authors":"Carmen Ferrara,&nbsp;Benedetta Marmiroli,&nbsp;Andrea Molocchi,&nbsp;Giulio Mela,&nbsp;Maria Leonor Carvalho,&nbsp;Pierpaolo Girardi","doi":"10.1016/j.renene.2026.125416","DOIUrl":"10.1016/j.renene.2026.125416","url":null,"abstract":"<div><div>Combining Life Cycle Assessment with monetary evaluation, the study presents an environmental estimation of externalities associated with the life cycle of electricity generation in Italy. The analysis quantifies the external costs of air emissions (greenhouse gases and air pollutants) of the current Italian electricity mix (2022) and of two future projections based on decarbonization scenarios (2030 and 2040) presenting a methodological approach based on the regionalization of life cycle air emissions.</div><div>The results show greenhouse gases contribute over 90% of total externalities, predominantly generating in Italy. National and EU policies aimed at internalizing or compensating for these externalities could be swiftly implemented and prove effective in reducing the externalities of electricity generation. Furthermore, the progressive decarbonization of electricity generation mix leads to a 67.7% reduction in externalities per kWh from 2022 to 2040. The findings also highlight that the effects of the energy transition extend along the externality chain. Externalities shift away from fossil-fuel-exporting countries toward producers of the renewable technologies required for the transition, primarily China. They also move from fuels to renewable-energy infrastructure. The detailed regionalized analysis of emissions across different life cycle phases and geographic areas offers valuable insights for policymakers aiming to internalize these externalities and support a sustainable energy transition In this regard, the study highlights effective climate and environmental policy should combine national decarbonization of electricity generation with targeted measures to decarbonize the manufacturing supply chains of renewable-energy technologies in principal producing countries to ensure that the environmental benefits are maximized globally.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"262 ","pages":"Article 125416"},"PeriodicalIF":9.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186356","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}