Energy Efficiency最新文献

{"title":"The role of energy performance certificates and energy-related financial literacy in choosing an energy-efficient home: Evidence from Slovenian homeowners","authors":"Ivana Jovović,&nbsp;Nevenka Hrovatin,&nbsp;Jelena Zorić","doi":"10.1007/s12053-025-10320-6","DOIUrl":"10.1007/s12053-025-10320-6","url":null,"abstract":"<div><p>Energy performance certificates serve to inform the public about the energy performance of buildings in a standardised way. Although there have been influential studies about energy performance certificates, their effectiveness in improving household energy efficiency by reducing information barriers has been underexplored. This paper addresses this gap with evidence from Slovenia, an EU member state using empirical data from an online survey. We employed discrete choice models to analyse a representative sample of 2,484 Slovenian homeowners. We find that financial literacy and correct life-cycle cost calculation positively and significantly influence the likelihood of selecting an energy-efficient home. The same results apply to the integrated concept of energy-related financial literacy. In addition, providing information in monetary terms, rather than in kWh per square meter, does not significantly impact the respondents’ decision, while trust in the energy performance certificates is a decisive factor in the choice of an energy-efficient home and thus plays an important role in their effectiveness. The obtained results advocate for the simplification of energy performance certificates and the enhancement of information campaigns to foster trust and improve energy literacy, which is found to be very low.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-025-10320-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Overview about energy recovery applied to combustion engine focused on biofuels","authors":"Felipe da Silva Frutuoso,&nbsp;Mona Lisa Moura de Oliveira,&nbsp;André Valente Bueno,&nbsp;Ludmila Corrêa de Alkmin e Silva","doi":"10.1007/s12053-025-10318-0","DOIUrl":"10.1007/s12053-025-10318-0","url":null,"abstract":"<div><p>Hybrid vehicles present promising application prospects, combining the tradition and autonomy of combustion engines with the reliability, efficiency, and environmental appeal of electrification. In Brazil, the eighth-largest vehicle producer globally, up to 70% of the fleet comprises flex-fuel vehicles (FFVs), capable of operating with gasoline E27 (27% anhydrous ethanol), hydrous ethanol E100, or any blend, representing a significant portion of the country’s transportation matrix. Energy recovery is an important strategy for power conservation and increasing the efficiency of hybrid vehicles that combine internal combustion engines (ICE) and electric engines with small-capacity batteries, commonly applied in low-level electrification. This paper proposes an overview of technologies for ICE energy recovery to improve hybrid FFVs efficiency, that should be the main strategy for comply new emission legislation in Brazil and others markets in the next years. It employs a two-step approach: a literature review followed by patent analysis. The discussion analyzes advance technologies for recovering ICE energy like turbocharger, hybridization, exhaust gas recirculation (EGR) and Homogeneous Charge Compression Ignition (HCCI), applied to FFV ICEs. The United States, China and Germany are the countries with the highest number of patents registered in all ICE sub-technologies analyzed. Turbocharging appears to be a well-developed technology while HCCI still has many challenges to be overcome before it can be offered commercially. Hybrid FFVs vehicles using biofuel only or blended with gasoline offer a swift response to the energy transition in the mobility sector towards 100% electrification powertrain and provide a quicky solution for countries like Brazil.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relationship between the architectural and constructive characteristics of dwellings and the adaptive actions of their occupants","authors":"Alexis Pérez-Fargallo,&nbsp;Paula Gacitúa-Ferrada,&nbsp;Laura Marín-Restrepo,&nbsp;David Bienvenido-Huertas","doi":"10.1007/s12053-025-10312-6","DOIUrl":"10.1007/s12053-025-10312-6","url":null,"abstract":"<div><p>People spend most of their time in enclosed spaces, doing activities, which is why habitable spaces that meet minimum environmental comfort for occupants are sought. In Chile, high levels of energy consumption are needed to reach acceptable comfort levels and, therefore, high costs. For this reason, people use other strategies to maintain comfort, such as actions to adapt, changing elements in the space, or making personal changes such as wearing a sweater before turning on the heating. This study looks to analyze the relationship between the adaptive actions of occupants of dwellings in the Biobío Region and the architectural and constructive characteristics of their homes. Data collection was made using a survey where 72 households took part. The data analysis explored correlations between the studied variables. The results indicated that people perform personal actions before using any environmental ones, with the main factor behind this being the insulation level of the dwellings. This suggests that, in these contexts, people innately employ adaptive actions, generating energy savings.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring user engagement and perceptions towards smart energy applications in Norway: Insights from a text mining analysis of user reviews","authors":"Chandra Prakash Paneru,&nbsp;Ari K. M. Tarigan,&nbsp;Cristian Toșa","doi":"10.1007/s12053-025-10309-1","DOIUrl":"10.1007/s12053-025-10309-1","url":null,"abstract":"<div><p>Smart energy applications can be powerful tools for two-way communication between energy providers and end-users. These apps offer real-time usage insights and present consumption data through intuitive and visually appealing interfaces. In parallel, these platforms allow users to provide ratings, reviews, and comments directly within or via app provision platforms, thereby helping energy providers improve their overall services. Long-term engagement with such energy apps could benefit sustainable energy consumption practices, as such digital platforms can empower users to make informed energy-efficient choices. Nonetheless, there is a lack of a systematic approach to analysing users’ engagement towards such smart energy apps and users’ opinions about their practical functionalities and features. This study examines how users interact with smart energy apps, assess their functionalities, and share their opinions through ratings, reviews, and comments. It offers unique insights into end-user perspectives through advanced text-mining techniques incorporating word analysis, sentiment analysis, topic modelling, and exploratory qualitative analysis. By analysing over 3,000 publicly available user-generated reviews, the research identifies patterns such as monitoring energy consumption, managing appliances, and integrating smart home features like EV charging. The findings highlight diverse motivations for app engagement, extending beyond cost savings to include empowerment, convenience, and alignment with sustainability goals. While users express predominantly positive sentiments about the app’s intuitive design, real-time feedback, and gamification features, reviews also reveal areas for improvement, emphasizing the importance of user-centred design in enhancing app usability and functionality. The findings provide actionable insights for improving app design, advancing smart energy solutions, and informing energy efficiency and conservation initiatives.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-025-10309-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Climate resilience strategies for schools in mediterranean areas: is it feasible to condition air merely with ventilation?","authors":"Paolo Maria Congedo,&nbsp;Andrea Palmieri,&nbsp;Cristina Baglivo","doi":"10.1007/s12053-025-10311-7","DOIUrl":"10.1007/s12053-025-10311-7","url":null,"abstract":"<div><p>Managing energy costs in school buildings across Italy poses a significant challenge. Over time, various directives have aimed to reduce energy consumption and improve indoor air quality to enhance student and teacher performance. This study offers an innovative analysis of the thermal behavior of a school in a typical Mediterranean climate. The building envelope is designed to meet legal standards for thermal transmittance specific to its Italian climate zone. Using Termolog Epix 15 software, the study conducts dynamic annual and hourly simulations to assess operative temperature and relative humidity in classrooms, with the heating system turned off and varying air exchange rates. The results suggest that optimizing the building envelope can be more effective than installing traditional HVAC systems (heating, ventilation, and air conditioning) in warm climates, demonstrating the effectiveness of a mechanical ventilation system without heating or cooling. By analyzing the PMV (Predicted Mean Vote) and PPD (Predicted Percentage of Dissatisfied) indices, the study demonstrates that it is possible to maintain acceptable thermo-hygrometric comfort through the only ventilation. During winter, with air changes per hour ranging from 1 to 5, classrooms can maintain temperatures between 21 °C and 23 °C, ensuring thermal comfort without heating. Typically, a heating system would operate for approximately 1071 h annually, excluding holidays. However, an effective ventilation system could eliminate the need for heating entirely. While maintaining optimal temperatures in the intermediate months (spring/autumn) and summer is more challenging, this concern is mitigated by the fact that schools are closed during summer holidays.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-025-10311-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysing energy considerations in residential renovation planning and design: a case study comparison between Denmark and Sweden","authors":"Katharina Reindl,&nbsp;Georgios Pardalis,&nbsp;Daniel Pihl,&nbsp;Jenny Palm","doi":"10.1007/s12053-025-10310-8","DOIUrl":"10.1007/s12053-025-10310-8","url":null,"abstract":"<div><p>This paper investigates the dynamics surrounding energy efficiency measures in building renovation projects to understand how energy issues are dealt with at planning and design meetings for building renovations. Through a comparative analysis of case studies of residential building renovation projects in Sweden and Denmark, document studies, observations, and interviews were conducted. The study revealed barriers hindering the effective implementation of energy efficiency practices and discussed how these can be overcome. Despite a growing recognition of the importance of energy issues, professionals often prioritise design aspects and technical installations over energy saving or efficiency. Conventional renovation practices limit the adoption of more innovative or advanced energy-efficient solutions. Financial constraints and a lack of focus on energy performance were significant barriers to the implementation of more progressive measures. Energy calculations as well as energy consultants are not given space and time at the project meetings. Clear guidance and alternative financing mechanisms are crucial for overcoming these hurdles and promoting sustainable building practices.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-025-10310-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Operation performance of a ground source heat pump system in the mediterranean climate zone. First results","authors":"Paul Christodoulides,&nbsp;Christakis Christou,&nbsp;Lazaros Aresti,&nbsp;Iosifina I. Stylianou,&nbsp;Georgios A. Florides","doi":"10.1007/s12053-025-10307-3","DOIUrl":"10.1007/s12053-025-10307-3","url":null,"abstract":"<div><p>This paper presents the configuration and performance of a Low Enthalpy Geothermal System successfully installed and utilized in the Mediterranean climate zone. Additionally, it examines the performance of different types of Ground Heat Exchangers (GHE), all installed in the same System. The Ground Source Heat Pump (GSHP) of the system consists of vertical ground heat exchangers (GHEs) in five different configurations, one double helicoidal coil in a well and an open loop (well) system. The entire system is constantly monitored by a Building Management System (BMS) that records the energy, volume flow, incoming and outgoing temperature at critical points of the system. Based on the recorded values, the performance of the System was analyzed in a heating and a cooling working mode, after examining the power flows in and out from critical points of the System. Results show higher heat exchange values inside the open well, both in heating and cooling mode suggesting the usage of this type of GHE, where applicable. Additionally, the electric power consumed by the chillers which are the largest electricity consumers within the System, is approximately five times lower than the power placed in the building by the Geothermal System (SCOP between 4.5 and 5). In terms of primary energy savings, we can say with confidence the GSHP systems working under Mediterranean climate zone conditions, can be consider as high efficiency solutions, verifying the theoretical efficiency given by the manufacturer of the GSHP.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-025-10307-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A two-stage layout model of battery swapping station network based on urban road net","authors":"Shuo Zhang,&nbsp;Xinyi Li,&nbsp;Yingzi Li,&nbsp;Xiufei Ma,&nbsp;Meixia Zheng,&nbsp;Li Chen","doi":"10.1007/s12053-025-10302-8","DOIUrl":"10.1007/s12053-025-10302-8","url":null,"abstract":"<div><p>The full penetration of electric vehicle (EV) is the support for China's dual carbon goal of decarbonizing urban transportation. However, the inadequate layout of EV service facilities, especially the battery swapping station network (BSSN), has hindered the development of EV in cities and the promotion of decarbonization of urban transportation. Therefore, in this paper, a novel BSSN two-stage layout model for EV is proposed by combining the characteristics of urban road net. At the first stage, a comprehensive utility model is constructed to select the candidate site nodes of BSSN by combining the node characteristics of urban road net based on Social Network Analysis (SNA). At the second stage, a layout model of BSSN is proposed to quantify the battery swapping demand and provide the optimal solution of BSSN, based on the comprehensive utility and the cost objective of the battery swapping station (BSS). Finally, the BSSN optimal solution is provided based on the layout model to cover the swapping demand within the Fourth Ring Road of Beijing as a case. In the case study, the consideration of multi-objective is proved to be effective. The optimal service radius for BSS is 5-7 km and 399,127.2t carbon emission reductions that can be generated based on this plan. In addition, the sensitivity analysis of BSS service radius, minimum station number and EV scale is carried out. The layout model of BSSN introduces comprehensive utility into the road net and optimizes the location of BSSN from the perspective of urban planning, and it is of significance to the planning of urban transportation.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of gender, age, and income in demand-side management acceptance: A literature review","authors":"Ida Marie Henriksen,&nbsp;Helena Strömberg,&nbsp;Jennifer Branlat,&nbsp;Lisa Diamond,&nbsp;Giulia Garzon,&nbsp;Declan Kuch,&nbsp;Selin Yilmaz,&nbsp;Lenart Motnikar","doi":"10.1007/s12053-025-10304-6","DOIUrl":"10.1007/s12053-025-10304-6","url":null,"abstract":"<div><p>Demand-side management (DSM) programs aiming to both reduce and render household consumption more flexible are becoming increasingly essential due to ongoing energy crises and the growing integration of renewable energy into energy production. The active involvement of households and energy users is crucial to fully unlock the potential of DSM programs. As this paper demonstrates, despite more than thirty years of feminist scholarly work focusing on the home as an important site of the production of gender inequality, few of these insights have been taken into account by DSM designers. Additionally, we note a broader pattern concerning gaps in knowledge regarding the diverse perspectives of energy users and their domestic contexts, all of which create obstacles to successful rollout and scalability. This paper uses the concepts of the social license to automate and intersectionality to analyze the existing literature on DSM programs. We find that three primary barriers in household DSM programs have been addressed: 1) there is an unresolved tension between DSM technology being perceived as a masculine domain and the home as a feminine domain; 2) low-income households face challenges in accessing the technology needed to enable both flexibility and savings; and 3) disparities in opportunities for youth and the elderly to participate in DSM programs are insufficiently considered. Based on these findings we argue that user diversity—not only conceived of as separate identity category variables but also as implicating overlapping and possible mutually reinforcing marginalizations– is needed to form a starting point in DSM program design for fair and scalable solutions.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-025-10304-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143496876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Socio-technical perspectives for mechanical ventilation systems in buildings: predictors of attitude and user satisfaction","authors":"Jessica Berneiser,&nbsp;Diana Maier,&nbsp;Sebastian Gölz,&nbsp;Sven Auerswald,&nbsp;Arnulf Dinkel","doi":"10.1007/s12053-025-10300-w","DOIUrl":"10.1007/s12053-025-10300-w","url":null,"abstract":"<div><p>Mechanical ventilation plays an important role in an increasingly energy-efficient building stock by promoting a good indoor air quality, occupant comfort and building protection. It can also reduce energy losses due to suboptimal ventilation behavior during the cold season and increase the overall energy efficiency of the building. However, the effectiveness of mechanical ventilation systems is dependent on appropriate user behavior. Discrepancies between technical requirements and actual user behavior in terms of adequate ventilation system use have been observed in empirical research. This can decrease energy efficiency and potentially negatively impact indoor air quality. The aim of this research was to explore factors that predict occupants’ attitudes towards their ventilation system and their satisfaction with it. We examined self-reported natural ventilation practices of occupants as well as predictors of technology acceptance and user satisfaction with mechanical ventilation. Predictors of these two dependent variables differed slightly in our sample. Perceived usefulness and perceived ease of use of the ventilation system predicted both attitudes and user satisfaction. In addition, user satisfaction was significantly associated with the perceived cleanliness of the ventilation system. Even though stated as a relevant preference for ventilation systems in our pre-study, satisfaction with control options was not related to attitudes or user satisfaction, neither was the subjective importance of the noise level and energy efficiency. We therefore conclude that it is essential to emphasize the goals and benefits of mechanical ventilation systems, hence their usefulness for comfort, health, building protection, and energy efficiency. Furthermore, it seems crucial to provide detailed explanations on the correct operation of the system to maintain its effectiveness. Ensuring the system’s understandability and ease of use are also vital for aligning technology requirements with user needs. Finally, to increase user satisfaction it may be critical to place importance on the filtering capabilities and cleanliness of the ventilation systems. Highlighting these aspects and explaining what is required of users to maintain hygienic environments in manuals and during installation could be a promising means of ensuring adequate long-term operation by occupants.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-025-10300-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143396632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}