Energy Strategy Reviews最新文献

{"title":"Climate Action in Islanded Jurisdictions: A Comparative Case Study of Renewable Portfolio Standards in Puerto Rico and Hawaii","authors":"Ryan Brenner ,&nbsp;Matthias Fitzky ,&nbsp;Kim Hertz ,&nbsp;Tu Lan ,&nbsp;Vivaldi Rinaldi ,&nbsp;Abhiram Vadali ,&nbsp;Masoud Ghandehari","doi":"10.1016/j.esr.2025.101946","DOIUrl":"10.1016/j.esr.2025.101946","url":null,"abstract":"<div><div>Renewable Portfolio Standards are popular climate mitigation policies that subnational jurisdictions use to transition their electricity portfolios to renewable sources by a set year. Puerto Rico and Hawaii have both adopted such laws. The US federal government partnered with both jurisdictions to complete feasibility studies and determined that it is technologically feasible for each to achieve their goals, and that was followed by significant investment for achieving it. Both jurisdictions are island communities with similar climates, renewable energy potentials, and historical reliance on imported fossil fuels for electricity generation. This paper explores the impact of political status, a key difference between the two, on the feasibility of achieving an RPS. While Hawaii has the full sovereignty of a US state, Puerto Rico has less autonomy as a US territory. The impact of this difference is demonstrated through the example in Puerto Rico of the Congressionally-created Financial Oversight and Management Board vetoing key legislation passed by Puerto Rico to achieve its goals. It is shown that Puerto Rico's status as a territory adds hurdles to the existing technical challenges, above and beyond what Hawaii faces as a state, hindering Puerto Rico's ability to achieve its goals.</div></div>","PeriodicalId":11546,"journal":{"name":"Energy Strategy Reviews","volume":"62 ","pages":"Article 101946"},"PeriodicalIF":7.9,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263514","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":"Pathways to decarbonise the power sector in Mauritius","authors":"Nazeefah U. Edoo ,&nbsp;Gul Hameed ,&nbsp;Michael Short","doi":"10.1016/j.esr.2025.101930","DOIUrl":"10.1016/j.esr.2025.101930","url":null,"abstract":"<div><div>An electricity modelling study is presented to support the decarbonisation of the power sector in Mauritius. The gaps in literature that this study aims to address are the insufficient evidence of systematic modelling in the country’s electricity transition strategies, outdated targets in existing modelling studies, limited long-term climate ambitions and the under-representation of the impact of vehicle electrification on electricity planning. Hence, a techno-economic optimisation model is developed to explore three long-term (2025–2050) scenarios in the power sector of Mauritius. Scenario A reflects the current policy ambition, aligning with the Nationally Determined Contribution (NDC) targets of achieving 60 % of renewable energy in the electricity by 2030. Scenario B models a pathway to achieve net-zero emissions in the power sector by 2050 and scenario C builds on Scenario B by incorporating widespread electrification of the transport sector. The potential of switching heavy fuel oils with alternative liquid fuels is also explored in all scenarios. The modelling is conducted using a mixed-integer linear programming optimisation tool, the DECarbonisation Options Optimisation (DECO2). Results indicate that carbon emissions drop by almost 50 % if coal is replaced with biomass. Furthermore, a 100 % renewable energy grid is achievable with alternative liquid fuels generating around 1200 to 1500 GWh of electricity. In the case of net-zero emissions, 28 % of electricity can still be produced using fuel oils only if negative emission technologies (NETs) are deployed. Additionally, the electrification of transport is found to have significantly affected the electricity generation capacity. While the modelled system can meet a demand from electric vehicles of up to 400 GWh per year by the year 2050, the flexibility of choosing between the technologies reduces and expensive generation options need to be deployed. This electricity system modelling study aims at supporting policy decisions in national electricity grid planning in Mauritius.</div></div>","PeriodicalId":11546,"journal":{"name":"Energy Strategy Reviews","volume":"62 ","pages":"Article 101930"},"PeriodicalIF":7.9,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263512","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":"Energy management framework for low-income schools in developing regions","authors":"T. Michael-Ahile ,&nbsp;J.A. Samuels ,&nbsp;M.J. Booysen","doi":"10.1016/j.esr.2025.101925","DOIUrl":"10.1016/j.esr.2025.101925","url":null,"abstract":"<div><div>This study presents a comprehensive framework designed to optimise energy management in low-income schools in developing regions, specifically aiming to address challenges such as limited resources, lack of technical skills, unreliable energy infrastructure, and low levels of energy literacy. Taking advantage of South Africa’s unique energy landscape, the framework integrates renewable energy solutions, low-cost efficiency measures, and sociotechnical approaches to enhance energy efficiency while promoting sustainability. By combining global best practices with localised socio-economic insights, the study develops a flexible and scalable energy management strategy. This framework prioritises data-driven methods, stakeholder collaboration, and incremental implementation, ensuring contextual adaptability. The proposed model highlights cost reduction, energy efficiency, energy reliability, and behavioural optimisation, offering actionable pathways to empower educational institutions while addressing systemic energy inefficiencies. The framework is grounded in a mixed-methods approach and supported by empirical data from recent studies conducted in low-income South African schools, allowing schools to transition to sustainable energy practices, reduce dependency on fossil fuels, and foster energy literacy among students and staff. This proposed framework can significantly contribute to lower energy costs, reduced carbon emissions, and increased awareness and knowledge of sustainable energy practices in educational settings in developing regions.</div></div>","PeriodicalId":11546,"journal":{"name":"Energy Strategy Reviews","volume":"62 ","pages":"Article 101925"},"PeriodicalIF":7.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263516","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":"Clean energy supply security and the international trade regime: A WTO law analysis of the EU Net-Zero Industry Act","authors":"Anatole Boute","doi":"10.1016/j.esr.2025.101919","DOIUrl":"10.1016/j.esr.2025.101919","url":null,"abstract":"<div><div>The energy transition is bringing a fundamental change to the supply security paradigm that has long governed the organization of energy markets in the European Union (EU) and globally. The turn to clean technology manufacturing in the new supply security paradigm generates tensions with the international trade regime, as states aim to localize and diversify their clean energy supply chains through trade-restrictive measures. Energy analysts warn that these supply security strategies could increase the cost of the energy transition and delay decarbonization. Focusing on the EU Net-Zero Industry (NZI) Act, this article examines clean energy supply security under the international trade regime, and provides a framework of assessment that can more generally be applied to localization and diversification initiatives in industrialized economies. It argues that, although the international trade regime is experiencing a profound crisis, the principles governing its functioning remain relevant to guide states in the design of supply security strategies that minimize cost increases and delays of the energy transition. The analysis shows how the NZI Act aims to lower the risk of supply disruptions to avoid delays to the energy transition, but in fact could achieve exactly what it aims to avoid by increasing the cost of clean energy investments. A WTO-compatible alternative would require the EU, and import-dependent economies more generally, to limit trade restrictions to specific technology dependencies for which risks of supply disruptions and the unreliability of suppliers have been sufficiently established.</div></div>","PeriodicalId":11546,"journal":{"name":"Energy Strategy Reviews","volume":"62 ","pages":"Article 101919"},"PeriodicalIF":7.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263517","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":"Life cycle sustainability assessment of electricity production technologies: a structured review and future research perspectives","authors":"A. Al-Kuwari ,&nbsp;M. Kucukvar ,&nbsp;N.C. Onat ,&nbsp;H. Al-Yafei ,&nbsp;T. Al-Ansari","doi":"10.1016/j.esr.2025.101939","DOIUrl":"10.1016/j.esr.2025.101939","url":null,"abstract":"<div><div>This paper presents a comprehensive and up-to-date systematic review of life cycle sustainability assessment (LCSA) studies on emerging electricity production technologies conducted between 2014 and 2023. A systematic review was conducted using the Scopus database for the period between 2014 and 2023 and an initial 1658 documents were screened, with 448 meeting the inclusion criteria based on empirical LCSA of electricity production alternatives. The review highlights that while solar energy is the most frequently analyzed (30 % of studies), emerging technologies such as hydrogen and liquefied natural gas remain significantly underrepresented. Although LCSA is intended to incorporate environmental, economic, and social dimensions, approximately 80 % of the studies focused solely on environmental impacts, with minimal integration of socioeconomic analysis or explicit alignment with global frameworks such as the United Nations Sustainable Development Goals (only 2 % made such connections). Many studies also lacked a system-wide perspective, focusing narrowly on individual technologies and failing to explore trade-offs or synergies across electricity systems. Most assessments (over 80 %) relied on process-based life cycle models, with limited application of hybrid methods that combine process-based and multiregional input-output analysis to capture broader carbon and resource footprints. In terms of decision-making support, only 36 % of the reviewed studies employed traditional tools like sensitivity analysis or simulation, while the use of advanced methods such as optimization, artificial intelligence, and machine learning remains limited. This review synthesizes current practices, identifies methodological and thematic gaps, and proposes a more integrated framework for evaluating system-level sustainability impacts. It also offers practical insights for aligning electricity system planning with long-term sustainability goals, particularly SDG 7, by incorporating a broader range of technologies and data-driven analytical approaches.</div></div>","PeriodicalId":11546,"journal":{"name":"Energy Strategy Reviews","volume":"62 ","pages":"Article 101939"},"PeriodicalIF":7.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263575","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":"Analysis of district heating system energy security index. A case study from Latvia","authors":"Marita Agate Zirne,&nbsp;Ieva Pakere,&nbsp;Vivita Priedniece","doi":"10.1016/j.esr.2025.101943","DOIUrl":"10.1016/j.esr.2025.101943","url":null,"abstract":"<div><div>Existing energy security index (ESI) studies focus on individual countries, with indicators chosen according to the specifics of the country or the region. This study assesses the ESI for district heating (DH) in Latvia through a composite index methodology. The index consists of 10 indicators, identified through a comprehensive literature review and subsequently adapted to the specific context of DH.</div><div>Findings reveal distinct trends across dimensions. In the social dimension, household energy use per capita is predicted to increase to 8.5 MWh by 2050, while consumption per square metre will fall to 0.15 MWh/m². The economic dimension shows steady improvement, with import dependency decreasing to 2.7 %, self-reliance rising to 62.1 %, and household heating costs falling from 38 % of income in 2010 to 3.9 % in 2050. The environmental dimension demonstrates the strongest progress: CO₂ emissions per m² decline from 14.76 t in 2010 to net zero by 2050, raising its sub-index from 0.16 to 1.0. The technical dimension improves in efficiency (1.4 MWh/MW by 2050) but faces declining energy source diversity, peaking in 2030 (0.78) and dropping to 0.43 by 2050. Overall, the DH ESI is lowest in 2020 (0.44) and highest in 2030 (0.64).</div><div>Latvia's DH energy security (ES) is projected to strengthen in the long term, driven by economic and environmental gains from renewable energy expansion, efficiency improvements, and reduced import dependency. Vulnerabilities persist in the social and technical dimensions, underscoring the need for targeted policy measures to balance progress across all areas.</div></div>","PeriodicalId":11546,"journal":{"name":"Energy Strategy Reviews","volume":"62 ","pages":"Article 101943"},"PeriodicalIF":7.9,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263513","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":"How does the penetration of new energy vehicles affect global energy security? Empirical evidence from multiple countries","authors":"Jiaqi Wang ,&nbsp;Menghao Deng ,&nbsp;Tingqiang Chen","doi":"10.1016/j.esr.2025.101945","DOIUrl":"10.1016/j.esr.2025.101945","url":null,"abstract":"<div><div>In the context of global Energy Security (ES) challenges, New Energy Vehicles (NEVs) have garnered significant attention as a pivotal technology for catalyzing the energy transition, fortifying ES, and curtailing reliance on fossil fuels. However, the specific impact of New Energy Vehicle Penetration (NEVP) on ES and the underlying mechanisms remains underexplored. Using panel data from 45 countries between 2010 and 2022, this study employs a two-way fixed effects model, a random forest model, a spatial Durbin model, and a threshold effect system analysis to examine the impact of NEVP on ES. The results show: (1) NEVP significantly improves national ES, with results remaining robust after robustness and endogeneity tests; (2) Energy transition, technological innovation, and charging infrastructure play important mediating roles; (3) NEVP exhibits a “siphoning effect,” generating negative spatial spillover effects on neighboring countries’ ES; (4) The positive impact on ES is significant when NEVP is below 5.8%, but diminishing returns occur beyond this threshold due to grid pressure and infrastructure bottlenecks; (5) In developing countries, NEVP has a significantly stronger impact on ES compared to developed countries; Hybrid Energy Vehicles (HEV) have a stronger effect on ES than Battery Energy vehicles (BEV). Based on these findings, the study recommends that governments promote NEV adoption, strengthen infrastructure, support technological localization and green innovation, and implement differentiated policies to enhance ES and avoid diminishing returns.</div></div>","PeriodicalId":11546,"journal":{"name":"Energy Strategy Reviews","volume":"62 ","pages":"Article 101945"},"PeriodicalIF":7.9,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263519","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":"Measuring the impact of carbon transition risk on the equity performance of energy corporations","authors":"Isabel Figuerola-Ferretti ,&nbsp;F. Javier Sanz ,&nbsp;Tao Tang","doi":"10.1016/j.esr.2025.101914","DOIUrl":"10.1016/j.esr.2025.101914","url":null,"abstract":"<div><div>This paper examines the financial impact of carbon transition risk on energy sector returns by constructing a green-minus-polluter (GMP) portfolio concentrating on the oil and gas (brown) corporations and utilities (green) across North America and Europe. A structural break in 2020 prompts a split analysis. Between 2014 and 2020, North American GMP portfolios show strong abnormal returns (9–10%), which turn negative in the 2021–2023 period. In Europe, zero-emission portfolios yield 6% abnormal returns initially but show no significant profitability afterward. These findings suggest a faster transition pace in North America and indicate that while green investing can help mitigate transition risk, its financial performance varies over time. Our findings also show that the GMP factor has stronger explanatory power in the North American market and among oil and gas companies, highlighting regional and sectoral differences. The study contributes to the ongoing debate on the benefits of aligning investments with the green energy transition.</div></div>","PeriodicalId":11546,"journal":{"name":"Energy Strategy Reviews","volume":"62 ","pages":"Article 101914"},"PeriodicalIF":7.9,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263520","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":"Adaptive strategies to enhance resilience in the global oil trade network","authors":"Sai Chen ,&nbsp;Gaojian Ji ,&nbsp;Kailan Tian ,&nbsp;Yueting Ding","doi":"10.1016/j.esr.2025.101921","DOIUrl":"10.1016/j.esr.2025.101921","url":null,"abstract":"<div><div>The global oil trade network (GOTN) is highly interconnected and geographically concentrated, which makes it vulnerable to disruption risks such as extreme weather or geopolitical conflicts. However, certain countries demonstrate higher resilience when facing such risks. Therefore, this study aims to identify the key determinants of GOTN resilience and examine how they contribute to its enhancement. A resilience simulation model is developed using the susceptible-infected-susceptible framework and risk propagation dynamics in complex networks to simulate the impact of adaptive behaviors on GOTN resilience under risk shocks. The research results indicate that: (1) Adaptive behavior based on edge rewiring strategies can mitigate risk propagation in the GOTN under risk shocks. (2) Adaptive behavior changes the GOTN's topological properties, transforming tightly clustered trade relations into more dispersed configurations. (3) Higher probability of severing trade ties with risk-affected countries can not only protect certain trading countries but also enable those impacted to recover more quickly during the risk propagation, thereby strengthening the network resilience. (4) Reducing reliance on trading countries through measures such as supply diversification can mitigate the global risk propagation, which is critical for GOTN resilience. Our research emphasizes the priority of flexible mechanisms for rapid trade relationship adjustments in policy making, particularly during crisis periods.</div></div>","PeriodicalId":11546,"journal":{"name":"Energy Strategy Reviews","volume":"62 ","pages":"Article 101921"},"PeriodicalIF":7.9,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263518","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":"Decoding wind power uncertainty: A Bayesian-optimized machine learning approach for multi-timescale dynamic transitions","authors":"Yali Hou ,&nbsp;Qunwei Wang ,&nbsp;Yiqin Bao ,&nbsp;Tao Tan","doi":"10.1016/j.esr.2025.101937","DOIUrl":"10.1016/j.esr.2025.101937","url":null,"abstract":"<div><div>Due to the inherent instability and dynamic multi-timescale transitions of wind power generation, effectively decoding its uncertainty is critical for operational planning and grid stability. This study developed a machine learning framework using real-world data from a wind farm in Xinjiang. The framework integrates tree-based ensemble models to capture non-linear interactions and handle anomalies, Bayesian optimization for hyperparameter tuning, and Shapley Additive Explanations (SHAP) to quantify feature contributions. CatBoost, identified as the best-performing model, achieved an R² improvement from 0.9372 to 0.9631 when combined with Bayesian optimization. The results reveal that 50m wind speed positively impacts power generation when exceeding 5 m/s, whereas 10m turbulence intensity exhibits nonlinear degradation characteristics, specifically manifesting detrimental influences on energy conversion efficiency when exceeding the threshold of 0.2. Wind speed emerges as the most critical factor across all seasons. Beyond wind speed, the importance of features varies seasonally. Key feature impacts vary throughout the day: 50m wind speed in spring, wind direction in summer, and temperature in winter generally enhance power generation, though their effects weaken during the day. In autumn, 10m wind direction aids generation during the day but hinders it at night. Conversely, higher summer temperatures and lower winter wind speeds variably negatively affect power output. Wind direction fluctuations at 50m reduce daytime generation in spring and autumn. This study provides critical insights for optimizing wind farm operations and enhancing grid stability, offering actionable recommendations for policymakers and renewable energy stakeholders.</div></div>","PeriodicalId":11546,"journal":{"name":"Energy Strategy Reviews","volume":"62 ","pages":"Article 101937"},"PeriodicalIF":7.9,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263522","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}