Energy EconomicsPub Date : 2025-05-22DOI: 10.1016/j.eneco.2025.108612
Yang Huang , Ni Xiong , Chengkun Liu
{"title":"Smart city policies and corporate renewable energy technology innovation: Insights from patent text and machine learning","authors":"Yang Huang , Ni Xiong , Chengkun Liu","doi":"10.1016/j.eneco.2025.108612","DOIUrl":"10.1016/j.eneco.2025.108612","url":null,"abstract":"<div><div>Smart cities have emerged as a key strategy to balance economic growth with carbon emission reduction. This study uses a difference-in-differences (DID) model, supplemented by a double machine learning approach (DML), to examine the impact of China's smart city policies on corporate renewable energy technology innovation (RETI). We further integrate a supervised machine learning bag-of-words (BoW) approach enhanced with TF-IDF weighting and cross-validation to convert patent texts into robust quantitative RETI metrics. Results show that smart city policies significantly enhance RETI, primarily by alleviating financial constraints and improving human capital. These effects are further amplified by well-developed institutional environments and executive's environmental protection background. Additionally, the main effect is more pronounced for nonstate-owned corporate and those in eastern China. These findings offer valuable insights for fostering RETI and advancing sustainable development, with implications for achieving carbon neutrality goals.</div></div>","PeriodicalId":11665,"journal":{"name":"Energy Economics","volume":"148 ","pages":"Article 108612"},"PeriodicalIF":13.6,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Energy EconomicsPub Date : 2025-05-22DOI: 10.1016/j.eneco.2025.108614
Dengjun Zhang , Nazif Durmaz , John M. Kagochi
{"title":"Energy outages, in-house power generators, and capacity utilization: The case of African manufacturing","authors":"Dengjun Zhang , Nazif Durmaz , John M. Kagochi","doi":"10.1016/j.eneco.2025.108614","DOIUrl":"10.1016/j.eneco.2025.108614","url":null,"abstract":"<div><div>This study evaluates the impact of energy outages and in-house power generators on capacity utilization among approximately 12,000 African firms. Energy outages and in-house power generators are measured by the days that firm experienced energy outages and the share of self-generated electricity as a proportion of total electricity consumed, respectively. We further construct quantile dummies based on outage days and the self-generated electricity share. The estimation results depend on the measurement of these key variables and whether the joint impact of energy outages and in-house power generators is accounted for. For example, only in the model that include outage days, the self-generated electricity share, and the interaction term between them, both outage days and the joint impact are found to be significant. This study provides a comprehensive assessment of the effects of power outages and generator ownership on capacity utilization, offering valuable managerial and policy insights.</div></div>","PeriodicalId":11665,"journal":{"name":"Energy Economics","volume":"147 ","pages":"Article 108614"},"PeriodicalIF":13.6,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Energy EconomicsPub Date : 2025-05-21DOI: 10.1016/j.eneco.2025.108550
Wen Li , Jing-Ping Li , Yun-Feng Wang , Sebastian-Emanuel Stan
{"title":"Is artificial intelligence an impediment or an impetus to renewable energy investment? Evidence from China","authors":"Wen Li , Jing-Ping Li , Yun-Feng Wang , Sebastian-Emanuel Stan","doi":"10.1016/j.eneco.2025.108550","DOIUrl":"10.1016/j.eneco.2025.108550","url":null,"abstract":"<div><div>This study investigates the bidirectional relationship between artificial intelligence (AI) and renewable energy investment, emphasizing their strategic importance in achieving global low-carbon objectives. Using a high-frequency dataset from 2010 to 2024, which includes monthly observations on the artificial intelligence robotics index (AIW) and the renewable energy index (ENI) in China, this research employs a bootstrap subsample rolling window Granger causality test to examine dynamic causal linkages. The findings reveal that AI accelerates renewable energy investment by enhancing energy forecasting, grid optimization, and intelligent energy management. However, its long-term impact is constrained by high capital costs, resource limitations, and regulatory uncertainty. Moreover, renewable energy development reciprocally promotes AI advancements, particularly in energy storage and autonomous energy systems, although this synergy is vulnerable to policy instability and economic downturns. This study makes significant contributions by providing empirical evidence on the evolving role of AI in renewable energy investments and offering practical policy insights. The results inform policy-makers, investors, and energy firms about optimizing AI applications in renewable energy, improving regulatory frameworks, and fostering economic conditions that accelerate the shift towards a sustainable, carbon-neutral economy. These insights have broad implications for countries aiming to leverage AI-driven solutions for sustainable energy innovation.</div></div>","PeriodicalId":11665,"journal":{"name":"Energy Economics","volume":"147 ","pages":"Article 108550"},"PeriodicalIF":13.6,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Energy EconomicsPub Date : 2025-05-21DOI: 10.1016/j.eneco.2025.108578
Mingxing Shao, Lei Wen, Sifei Li, Binyue Huang
{"title":"Exploring the role of artificial intelligence as a catalyst for energy technology innovation","authors":"Mingxing Shao, Lei Wen, Sifei Li, Binyue Huang","doi":"10.1016/j.eneco.2025.108578","DOIUrl":"10.1016/j.eneco.2025.108578","url":null,"abstract":"<div><div>Artificial intelligence (AI) has a strong spillover effect and acts as an essential propellant for advancements in technology and development. Using A-share listed enterprises between 2007 and 2022 as the sample, we assess the influence of AI on energy technology innovation (ETI). Our findings highlight that AI can promote ETI primarily by improving the human capital structure and encouraging enterprises to increase research and development (R&D) expenditure. This effect is more pronounced in enterprises with low-carbon transition strategy, those located in regions with abundant resource endowments, and those situated in clean energy base areas. Moreover, the study reveals that AI can positively affect ETI and contribute to enhanced enterprise environmental performance. The findings provide more thorough understanding of the critical role of AI in energy and innovation, offering practical recommendations for enterprises to leverage AI in boosting energy efficiency and lowering pollutant emissions, thereby aligning with as well as encouraging the attainment of carbon neutrality and peaking targets set by China.</div></div>","PeriodicalId":11665,"journal":{"name":"Energy Economics","volume":"147 ","pages":"Article 108578"},"PeriodicalIF":13.6,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144130872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Energy EconomicsPub Date : 2025-05-20DOI: 10.1016/j.eneco.2025.108604
Aalok Kumar , Pooja Goel , Sunil Tiwari
{"title":"Impediment ranking and solutions for enhancing electric freight vehicle uptake in urban logistics","authors":"Aalok Kumar , Pooja Goel , Sunil Tiwari","doi":"10.1016/j.eneco.2025.108604","DOIUrl":"10.1016/j.eneco.2025.108604","url":null,"abstract":"<div><div>The adoption of electric freight vehicles (EFVs) is integral to achieving sustainable urban freight mobility (UFM); however, their large-scale deployment remains constrained by a number of financial, infrastructural, regulatory, policy, and operational barriers. This study employs a robust multi-criteria decision analysis (MCDA) framework, which integrates fuzzy Delphi, decision-making trial and evaluation laboratory (DEMATEL), and interpretive structural modelling (ISM), to systematically identify, rank, and link critical barriers to EFV deployment. Through an initial literature review and expert-driven assessment, we identify 18 barriers, which are subsequently refined to 13 based on their significance and interrelationships. The results highlight six dominant causal barriers, including inadequate government incentives, unstructured urban market layouts, and high operational costs with prolonged payback periods, all of which create systemic resistance to EFV adoption. Additionally, limited charging infrastructure, an immature EFV resale market, and a lack of dedicated repair centres exacerbate the reluctance of logistics service providers to transition to EFVs. The study also categorizes these barriers into four strategic clusters based on their driving and dependence power, offering a novel hierarchical decision roadmap to facilitate effective policy interventions. Advancing existing DEMATEL methodologies, this research contributes to the discourse on sustainable urban logistics by providing an empirically validated, analytically rigorous framework that informs policymakers, logistics service providers, and urban planners in devising effective strategies for EFV integration. The proposed model facilitates strategic decision-making for achieving low-carbon urban freight systems and offers a scalable approach that is applicable to diverse urban contexts.</div></div>","PeriodicalId":11665,"journal":{"name":"Energy Economics","volume":"147 ","pages":"Article 108604"},"PeriodicalIF":13.6,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Energy EconomicsPub Date : 2025-05-20DOI: 10.1016/j.eneco.2025.108558
Yuqi Zheng , Brian Lucey
{"title":"What REALLY drives clean energy stocks - Fear or Fundamentals?","authors":"Yuqi Zheng , Brian Lucey","doi":"10.1016/j.eneco.2025.108558","DOIUrl":"10.1016/j.eneco.2025.108558","url":null,"abstract":"<div><div>This study investigates the relationship between the S&P Global Clean Energy Index and novel factors based on the GDELT Database, such as global news confidence levels, environmental sentiment, media coverage preferences in the US and China, and the ratio of environmental to overall reporting. We identify variables sourced from recent literature. Using the Isolation Forest method to select potential explanatory variables, Extreme Bounds Analysis reveals that “Fear” factors such as media sentiment and confidence show consistent and significant correlations with the S&P Global Clean Energy Index. These findings highlight the influential role of media sentiment in driving market confidence and industry growth. In contrast, some traditionally popular “Fundamental” factors, such as the Global Financial Stress Indicator, Green Bond Index, and US Dollar Index, lack robustness. While they appear reliable under normal distribution models, they exhibit substantial uncertainty under alternative models, limiting their explanatory power.</div></div>","PeriodicalId":11665,"journal":{"name":"Energy Economics","volume":"148 ","pages":"Article 108558"},"PeriodicalIF":13.6,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Energy EconomicsPub Date : 2025-05-19DOI: 10.1016/j.eneco.2025.108552
Shietal Ramesh , Rand Kwong Yew Low , Robert Faff
{"title":"Corrigendum to “Modelling time-varying volatility spillovers across crises: Evidence from major commodity futures and the US stock market” [Energy Economics Volume 143, March 2025, 108225]","authors":"Shietal Ramesh , Rand Kwong Yew Low , Robert Faff","doi":"10.1016/j.eneco.2025.108552","DOIUrl":"10.1016/j.eneco.2025.108552","url":null,"abstract":"","PeriodicalId":11665,"journal":{"name":"Energy Economics","volume":"147 ","pages":"Article 108552"},"PeriodicalIF":13.6,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The economic burden of a carbon tax on Chinese residents: A gender and income perspective","authors":"Yan-Yan Yu , Chao-Yun Zhong , Shu-Xin Zhang , Hong-Dian Jiang","doi":"10.1016/j.eneco.2025.108601","DOIUrl":"10.1016/j.eneco.2025.108601","url":null,"abstract":"<div><div>Consumption-based carbon accounting helps identify key groups that influence emission reduction efforts, but current research primarily focuses on consumption differences among different income groups, neglecting the impact of gender characteristics on emissions and the potential differentiated effects of emission reduction policies on different gender groups. Therefore, on the basis of a detailed description of the consumption structure of residents grouped by income and gender, this study takes China as an example to examine the indirect carbon emissions from residents' product consumption. This study uses an input–output structural decomposition analysis model to investigate the contributions of five influencing factors to changes in consumption-based carbon emissions in China and uses an input–output price model to explore the economic burden of a carbon tax on residents grouped by gender and income. The results show that low-income females have the largest carbon tax burden ratio (i.e., the proportion of the carbon tax cost in the residents' total consumption expenditure), which is 1.12 times and 1.32 times higher than that of low-income residents and the average level, respectively. Specifically, 64.9 % (185.2 yuan) of females' carbon tax cost is related to housing consumption. Targeted implementation of supporting policies can obviously decrease the carbon tax cost of low-income residents and female residents, which can provide support for enhancing the fairness and inclusivity of emission reduction policies.</div></div>","PeriodicalId":11665,"journal":{"name":"Energy Economics","volume":"147 ","pages":"Article 108601"},"PeriodicalIF":13.6,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Energy EconomicsPub Date : 2025-05-18DOI: 10.1016/j.eneco.2025.108577
Rohan Best, Andrea Chareunsy, Fatemeh Nazifi
{"title":"Persistent energy poverty for renters motivates policy reform","authors":"Rohan Best, Andrea Chareunsy, Fatemeh Nazifi","doi":"10.1016/j.eneco.2025.108577","DOIUrl":"10.1016/j.eneco.2025.108577","url":null,"abstract":"<div><div>Energy poverty can be pronounced in a cost-of-living crisis, especially when combined with housing-cost pressure for renters. In Australia, energy poverty has been a persistent problem for over a decade, especially for renters. This paper uses four different Australian household surveys covering 2012–2024 to decompose energy poverty gaps between housing renters and non-renters. We find that the capacity to make investments explains up to 45 % of the difference in difficulty paying bills between renters and non-renters. Assets explain approximately a third of the renter-homeowner difference and are substantially more important than income. Renters being less likely to have solar panels explains a small proportion of the gap for bill-paying difficulty. These three results imply three different foci beyond past policies. Governments can use more investment support to complement income support, means testing can focus more on assets rather than income, and policies can support bundles of investments and not just one aspect such as solar panels.</div></div>","PeriodicalId":11665,"journal":{"name":"Energy Economics","volume":"147 ","pages":"Article 108577"},"PeriodicalIF":13.6,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}