Next Energy最新文献

{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"11 ","pages":"Article 100527"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147069014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Policy impacts on bioenergy development: Cross-country evidence based on analysis","authors":"D. Rajanikant,&nbsp;M. Premalatha,&nbsp;Prabhat Bhuddha Dev S,&nbsp;N. Anantharaman","doi":"10.1016/j.nxener.2025.100494","DOIUrl":"10.1016/j.nxener.2025.100494","url":null,"abstract":"<div><div>The bioenergy sector is rapidly evolving, driven by sustainable policies. The study presents a comparative evaluation of bioenergy development across 6 countries: Brazil, Sweden, the United States, Japan, Canada, and Colombia, spanning the period from 2013 to 2022. It highlights key milestones and policy frameworks that have shaped national trajectories. Brazil has established itself as a global leader in biofuel production by capitalizing on its favorable climate, vast agricultural resources, and advanced ethanol and biodiesel technologies. Sweden focuses on long-term energy security through waste-to-energy projects, second-generation biofuels, and carbon-neutral initiatives. The U.S. expands bioenergy through R&amp;D and diverse biofuel feedstocks. Japan has significantly advanced its bioenergy capabilities by implementing cutting-edge waste-to-energy solutions, developing algae-based biofuels, and promoting public-private partnerships to address feedstock limitations. Canada has made notable progress in utilizing biomass and agricultural residues despite geographical challenges, with British Columbia showing great potential for further expansion. Meanwhile, Colombia, still in the early stages of bioenergy growth, is gradually strengthening its industry by focusing on biogas and bioethanol production from sugarcane. Collectively, these countries demonstrate how strategic policy frameworks and effective implementation of sustainable practices have shaped the development of bioenergy. The observed trends highlight the sector’s potential to contribute to climate change mitigation, energy security, and sustainable economic growth.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100494"},"PeriodicalIF":0.0,"publicationDate":"2025-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145839456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Flexible hosting capacity: Integrating electric vehicles, photovoltaics, and battery energy storage into distribution grid planning in New England","authors":"Sergio Freeman,&nbsp;Ertan Agar","doi":"10.1016/j.nxener.2025.100495","DOIUrl":"10.1016/j.nxener.2025.100495","url":null,"abstract":"<div><div>Transportation electrification and the rapid deployment of distributed energy resources (DERs), including photovoltaics and battery energy storage systems, are transforming distribution grid operations. Traditional static hosting capacity assessments often fail to capture the dynamic, stochastic behavior of high DER penetrations, particularly when electric vehicles are integrated. This study applies a dynamic hosting capacity framework to a representative New England feeder using time-series simulations across five DER scenarios: baseline, unmanaged, time-of-use pricing, DER management systems (DERMS), and DERMS + vehicle-to-grid (V2G). Results reveal that unmanaged DERs more than double the factor of accelerated aging (FAA) in 18% of transformers and cause feeder voltage violations in 6.7% of operating hours. In contrast, DERMS coordination reduces voltage violations by 93% and FAA by over 50%. Hosting capacity increases from 25% under unmanaged conditions to 60% with DERMS + V2G. Dynamic hosting margin analysis indicates operational headroom rising from 18% (unmanaged) to over 40% (DERMS + V2G), with voltage regulator tap changes falling by 38% and reverse power flow events falling by 67%. These findings demonstrate that active coordination and V2G integration can substantially expand DER hosting capacity and enhance grid resilience without immediate infrastructure upgrades.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100495"},"PeriodicalIF":0.0,"publicationDate":"2025-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145839457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Physical property recommendations for computational modeling of water electrolysis","authors":"Joseph Bloxham ,&nbsp;Raj Venuturumilli","doi":"10.1016/j.nxener.2025.100488","DOIUrl":"10.1016/j.nxener.2025.100488","url":null,"abstract":"<div><div>Green hydrogen is necessary for the production of many low-carbon fuels. Water electrolysis is the most developed technology for green hydrogen. Process simulations and multiphysics models are widely used in industry. With an accurate model, scientists and engineers can direct research efforts or give recommendations for investing in technologies or companies. For models to give meaningful results, it is essential that the thermophysical properties of the materials in the system be represented correctly. Without correct property data, models will be inaccurate even if the underlying physics is precisely captured. However, increasing accuracy in physical properties can increase the computational cost of modeling. This report reviews the available literature for fluids present in most modern electrolyzers at industrially important conditions: water, hydrogen, oxygen, aqueous potassium hydroxide, and their mixtures. The report then reviews the current best data and practices for estimating density, heat capacity, thermal conductivity, surface tension, electrical conductivity, solubility, and electrical conductivity while balancing accuracy and computing speed. These properties are reviewed for pure components and mixtures in both liquid and vapor phases. Additional experimental data for these properties is necessary as the energy industry adopts green hydrogen production, but the recommendations made here are the best available at the time of the report.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100488"},"PeriodicalIF":0.0,"publicationDate":"2025-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145839458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of performance, combustion, and emission characteristics of a diesel engine fueled with novel emulsions of cattle dung bio-oil in diesel stabilized by biodiesel","authors":"Lovepreet Kaur ,&nbsp;Jayant Singh ,&nbsp;Alaknanda Ashok ,&nbsp;Harveer Singh Pali ,&nbsp;Sachin Kumar","doi":"10.1016/j.nxener.2025.100492","DOIUrl":"10.1016/j.nxener.2025.100492","url":null,"abstract":"<div><div>Alternative renewable fuels are the need of the hour due to limited petroleum fuel sources and environmental degradation caused by emissions. This study aims to evaluate the feasibility of utilizing cattle dung bio-oil (CDBO) microemulsions as an alternative fuel in compression ignition engines by investigating their production, stability, performance, combustion, and emission characteristics. CDBO was produced through fast pyrolysis under optimized conditions and blended with high-speed diesel (HSD) using castor oil methyl ester as an additive to prepare stable microemulsions containing 5–20% bio-oil by volume. The experimental objectives included characterization of the bio-oil, development of microemulsions, and assessment of their influence on engine performance, combustion parameters, and emission profiles. The engine testing was conducted on a single-cylinder, 4-stroke, water-cooled, direct-injection diesel engine (Kirloskar AVI, 5 hp/3.73 kW) coupled with an eddy current dynamometer. The setup was equipped with sensors and transducers to measure all required parameters. The findings indicated that the microemulsions having 20% bio-oil exhibited higher brake specific energy consumption (BSEC) (16.4%) and lower brake thermal efficiency (13.2%) than that of diesel, while the brake power remained almost the same at full loads. The microemulsion fuels produced significantly lower carbon monoxide (27%) and hydrocarbon emissions (41.5%), and the temperature of exhaust gas was higher (10.4%). At high loads, the microemulsions generated 23.5% lower smoke emissions than HSD. The ignition delay was the same as for diesel operation at higher loads, while the cylinder peak pressure was 6.4% higher than that of diesel.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100492"},"PeriodicalIF":0.0,"publicationDate":"2025-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145790218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing passive cooling of photovoltaic modules using bio-based eutectic phase change materials and barium sulphate radiative cooling paint","authors":"Zhen Wei Ko ,&nbsp;Annas Wiguno ,&nbsp;Jerry Joynson ,&nbsp;Matthew J. Ashfold ,&nbsp;Ianatul Khoiroh","doi":"10.1016/j.nxener.2025.100490","DOIUrl":"10.1016/j.nxener.2025.100490","url":null,"abstract":"<div><div>The global shift toward renewable energy has intensified the need to improve photovoltaic (PV) efficiency, particularly in tropical climates where elevated temperatures degrade performance. This study evaluates 2 passive cooling methods, bio-based phase change materials (PCMs) and barium sulphate (BaSO₄) radiative cooling paint to mitigate PV overheating. Two eutectic PCM mixtures, lauric acid/oleic acid (LA/OA) and lauric acid/capric acid (LA/CA), were characterized via differential scanning calorimetry, revealing latent heats of 120.1 J/g and 172.1 J/g, respectively. Under simulated solar irradiance of 800 W/m², PCM-integrated panels demonstrated significant thermal regulation, with the LA/CA system reducing peak temperatures by 18.3 °C vs. the reference panel and improving power output by 26.0%. In contrast, radiative cooling paint applied to panel frames or side-mounted heat sinks lowered temperatures by up to 6.1 °C but unexpectedly reduced power generation due to power dissipation, highlighting a trade-off between thermal and electrical performance. The LA/CA PCM emerged as the superior solution for tropical climates, offering sustained cooling and enhanced efficiency, while paint formulations require further optimization to avoid compromising light absorption. This study provides critical insights into passive cooling strategies, emphasizing the importance of holistic performance evaluation for real-world PV applications.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100490"},"PeriodicalIF":0.0,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145790219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Systematic review on bio-based insulation in Morocco: Research progress and policy challenges","authors":"Omar Iken ,&nbsp;Oussama Rahmoun ,&nbsp;Oumaima Imghoure ,&nbsp;Mohamed Touil ,&nbsp;Salma Ouhaibi ,&nbsp;Miloud Rahmoune ,&nbsp;Naoual Belouaggadia ,&nbsp;Rachid Saadani","doi":"10.1016/j.nxener.2025.100487","DOIUrl":"10.1016/j.nxener.2025.100487","url":null,"abstract":"<div><div>This paper evaluates the initiatives undertaken by research and policy institutions in Morocco regarding energy efficiency in buildings. It explores the potential of thermal insulation materials derived from bio-based composites and textile waste, as circularly, sustainable, economical and high-performance solutions. To meet this objective, a Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodology has been used with over 133 studies and 10 projects to analyse quantitatively and qualitatively the efforts made to integrate recycled and bio-based materials for more energy efficient buildings. The quantitative side has shown that over 30 different types of eco-friendly materials were experimentally and numerically characterised in Morocco during the last 25 years. The qualitative side was conducted through a U-value and thickness based evaluation and a classification by thermal conductivity and volumetric heat capacity to specify the most suitable materials. A critical analysis of the research methodology and the national policy strategy towards building energy efficiency has been carried out. The findings have highlighted the main challenges facing the integration of these insulation materials in the construction sector, particularly in terms of regulations, awareness and market access. Finally, recommendations were proposed to encourage the adoption of these innovative materials and strengthen public policies in favour of the energy transition.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100487"},"PeriodicalIF":0.0,"publicationDate":"2025-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145736376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamic simulation of a PEM fuel cell: Insights into efficiency, thermal, and fluid management","authors":"Theodore Azemtsop Manfo","doi":"10.1016/j.nxener.2025.100489","DOIUrl":"10.1016/j.nxener.2025.100489","url":null,"abstract":"<div><div>Proton exchange membrane (PEM) fuel cells are emerging as critical technology for clean and efficient energy conversion, providing a path to worldwide decarbonization and renewable power generation. Their successful integration into renewable and hybrid systems necessitates a thorough understanding of the interconnected electrochemical, thermal, and fluid processes that regulate performance. However, many existing models oversimplify these dynamic interactions, resulting in an inadequate understanding of system-level behavior and control optimization. This study fills that gap by creating a dynamic MATLAB/Simulink-based model of a PEM fuel cell to investigate how integrated thermal and fluid management affect efficiency, gas usage, and operational stability under changing loads. The model includes several critical subsystems, including the membrane electrode assembly, gas flow routes, heat regulation, and purge control. Simulation findings show a peak electrical output of 95 kW with a power density of 1.116 W cm⁻². This highlights the need for active cooling and purging strategies in reducing hydrogen loss and preserving stack performance. The findings aid sustainable PEM fuel cell design and real-time control development.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100489"},"PeriodicalIF":0.0,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145736525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coupling geothermal energy with geological carbon storage: A holistic review of enhanced geothermal systems using CO₂ as a working fluid","authors":"Jemal Worku Fentaw,&nbsp;Elvin Hajiyev,&nbsp;Abdul Rehman Baig,&nbsp;Hossein Emadi","doi":"10.1016/j.nxener.2025.100486","DOIUrl":"10.1016/j.nxener.2025.100486","url":null,"abstract":"<div><div>CO₂-based enhanced geothermal system (CO₂-EGS), also known as CO₂ plume geothermal, has emerged as a promising avenue to address the growing global energy demand and mitigate global climate concerns by exploiting renewable energy from geothermal reservoirs while concurrently sequestering CO₂. In this method, CO₂, in a supercritical state or dissolved in brine, is used as a working fluid to harness the geothermal energy held in hot reservoir rocks, with part of the CO₂ being trapped in the reservoir. Despite their rapidly growing popularity, the integration assessment of CO₂-EGS studies, fragmented into various subjects such as thermodynamics, heat transfer, multiphase flow, reservoir hydraulics, geomechanics, and geochemistry, remains insufficiently explored. Thus, a critical review that consolidates conducted studies, identifies gaps, and directs future research in this coupled technology is crucial. This review aims to provide a comprehensive assessment of CO₂-EGS, emphasizing its significance, the major challenges affecting its performance and mitigation strategies, the thermophysical properties of CO₂ as a working fluid, and CO₂ storage while extracting geothermal energy. The study revealed the key benefits of CO₂-EGS, including reducing corrosion and scaling effects in the wellbore, maintaining reservoir pressure, storing CO₂, increasing sweep efficiency of the reservoir, lowering pumping power, and addressing water scarcity for geothermal systems. Despite its significance, CO₂-EGS encounters major challenges, such as cost, drilling and operating wells in harsh geological conditions, CO₂ leakage, lost circulation, premature thermal breakthrough, lower specific enthalpy, and incomplete heating. Key factors influencing its performance include properties of the reservoir, natural fractures and faults, geochemical and geomechanical factors, well design, type of thermodynamic cycle used, and CO₂-related factors such as injection rate, injection pressure, temperature, and impurities. Overall, this review provides insights into significant advancements achieved and highlights future research to leverage CO₂-EGS for reducing CO₂ emissions while extracting geothermal energy.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100486"},"PeriodicalIF":0.0,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145736378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green hydrogen production from industrial effluent electrolysis: A brief bibliometric analysis and literature review","authors":"Pedro Henrique de Lima Gomes ,&nbsp;Vivian Carvalho de Araujo ,&nbsp;Carla Freitas de Andrade ,&nbsp;Daniel Silveira Serra ,&nbsp;Mona Lisa Moura de Oliveira","doi":"10.1016/j.nxener.2025.100481","DOIUrl":"10.1016/j.nxener.2025.100481","url":null,"abstract":"<div><div>Renewable energies are gaining ground in the global energy matrix due to their potential to decarbonize the economy. Currently, water electrolysis is one of the main commercial routes used to obtain green hydrogen, and there is a growing interest in alternative water sources to avoid competition between human and animal consumption and fuel production. In this context, a brief bibliometric analysis on \"Green hydrogen via effluent electrolysis\" was conducted, followed by a literature review aimed at answering the following guiding questions: (i) Are there green hydrogen production systems via effluent electrolysis?; (ii) What renewable energy sources are used by existing systems, and what is their configuration and production scale?; (iii) What electrolysis technologies are used in these systems?; (iv) What are the effluent sources used by existing systems, and what methods are employed for effluent treatment?; (v) What are the applications for hydrogen, oxygen, and residual heat obtained during effluent electrolysis? The results show that: (i) various types of effluent electrolysis systems have been reported; (ii) the main renewable energy source used in these systems is photovoltaic solar energy; (iii) the most commonly used electrolysis technology is the proton exchange membrane type; (iv) the most frequent effluent source is from municipal effluent treatment plants; and (v) the applications of green hydrogen, oxygen, and residual heat can meet the same demands as those of fossil origin hydrogen. Finally, it is evident that research involving effluent electrolysis for green hydrogen production is still in its early stages, indicating a wide field yet to be explored.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"10 ","pages":"Article 100481"},"PeriodicalIF":0.0,"publicationDate":"2025-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145684605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}