Energy Efficiency最新文献

Correction to: The crisis that normalised time-shifting: Energy flexibility, price awareness and care during the energy crisis in Denmark 修正：使时间转移正常化的危机：丹麦能源危机期间的能源灵活性、价格意识和关心

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2025-05-16 DOI: 10.1007/s12053-025-10335-z

Kirsten Gram-Hanssen, Ander Rhiger Hanssen, Line Valdorff Madsen, Rikke Skovgaard Nielsen

引用次数: 0

Household activities underlying residential electricity demand: who does what during the evening peak? 住宅用电需求背后的住户活动：谁在晚高峰期间做什么？

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2025-05-15 DOI: 10.1007/s12053-025-10322-4

Ciarán Lavin, Hannah Julienne

{"title":"Household activities underlying residential electricity demand: who does what during the evening peak?","authors":"Ciarán Lavin, Hannah Julienne","doi":"10.1007/s12053-025-10322-4","DOIUrl":"10.1007/s12053-025-10322-4","url":null,"abstract":"<div><p>Growing the proportion of electricity generated from renewable sources is an important goal. But periods of high energy demand are not always aligned with renewable supply, necessitating greater reliance on other sources such as fossil fuels. In Ireland, like many other countries, electricity demand typically peaks in the evening, driven largely by residential demand. Reducing or shifting household activities away from this evening peak period can thus increase the proportion of electricity generated from renewable sources. Understanding the flexibility potential of residential electricity demand requires knowing which household activities happen most during peak times, and what groups of people are most likely to perform them at those times, as well as understanding what might facilitate and motivate behaviour change. To investigate these questions, we use a behavioural science approach that is activity specific. Using a large dataset from an Irish tracking survey that adapts the day reconstruction method (Kahneman et al., 2004), we first record the time of day at which a range of activities – water heating and showering, laundry, dishwashing, and cooking, among others – take place. Focusing on the evening peak between 4 and 7 pm, we then investigate sociodemographic, household, and psychological variables associated with timing activities during this period rather than other times of day. We show that the factors associated with time of use (e.g., tariff structure, reported effort to avoid evening use, and household composition) vary by activity. We discuss the implications of our findings and note their value for demand side management mechanisms.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-025-10322-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073846","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}

引用次数: 0

The risk of guaranteed savings in energy performance contracts in the EU and Polish perspective 从欧盟和波兰的角度看能源绩效合同中保证节约的风险

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2025-05-15 DOI: 10.1007/s12053-025-10326-0

Rafał Cieślak

{"title":"The risk of guaranteed savings in energy performance contracts in the EU and Polish perspective","authors":"Rafał Cieślak","doi":"10.1007/s12053-025-10326-0","DOIUrl":"10.1007/s12053-025-10326-0","url":null,"abstract":"<div><p>The 2023 revised Energy Efficiency Directive raises the EU energy efficiency target, making it binding for EU countries to collectively ensure an additional 11.7% reduction in energy consumption by 2030, compared to the 2020 reference scenario projections. The Directive highlights the exemplary role of the public sector in the energy efficiency improvement process, particularly with regard to buildings and public procurement. The regulation makes the use of energy performing contracting mandatory for the renovation of large public buildings and the promotion of exemplary EPC solutions. Given the growing popularity of the EPC model, in-depth research into various aspects of the EPC projects will become necessary. One of the important features of the EPC model is the achievement of guaranteed energy savings. With this comes risk, which is often transferred to energy service providers. The main purpose of the article is to analyze the provisions of the EED and Eurostat with regard to Polish regulations, in the context of the risk of guaranteed energy savings. The article conducted a literature review, an analysis of EED regulations, Eurostat guidelines and Polish regulations, guidelines, and contract models, in terms of the risk of guaranteed energy savings. In addition, Polish EPC project stakeholders were interviewed. The results show that the EED does not require ESCOs to bear the risk of guaranteed savings, which aims to ensure that EPC projects generate savings regardless of the obligated entity. The paths to this goal under EPC may vary. Nevertheless, it seems that from the point of view of public entities, the desirable model is to transfer this risk to the ESCO. Polish regulations, for example, in principle assume the transfer of this risk to the ESCO. In contrast, the detailed approach varies depending on the specific stakeholder group of EPC projects.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073847","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}

引用次数: 0

Assessing the suitability of different roof types and coatings on roof-installed solar photovoltaic performance in sub-Saharan climates: a review 评估不同屋顶类型和涂层对撒哈拉以南气候下屋顶安装的太阳能光伏性能的适用性：综述

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2025-05-08 DOI: 10.1007/s12053-025-10331-3

Abdel-Hamid Mourad, Nosakhare J. Aigbedion

{"title":"Assessing the suitability of different roof types and coatings on roof-installed solar photovoltaic performance in sub-Saharan climates: a review","authors":"Abdel-Hamid Mourad, Nosakhare J. Aigbedion","doi":"10.1007/s12053-025-10331-3","DOIUrl":"10.1007/s12053-025-10331-3","url":null,"abstract":"<div><p>Solar photovoltaic (PV) technology is widely adopted in sub-Saharan regions due to abundant solar irradiation and unreliable grid infrastructure. However, the performance of roof-mounted PV systems is significantly influenced by the type of roofing material and surface coatings used. This review evaluates the thermal and performance implications of installing PV systems on four common roof types—green, clay tile, metal, and plastic tile under sub-Saharan climatic conditions. Findings indicate that green roofs reduce PV module temperatures by 1.5–3 °C and improve power output efficiency by up to 6%, while clay tile roofs offer up to 2.6 °C cooling compared to metal roofs, resulting in a 0.378 V increase in output voltage per module. Coated metal roofs with reflective pigments such as TiO₂ and Fe₂O₃ were found to improve PV performance by up to 10.4%. This review concludes that roof material selection and coating application play crucial roles in PV efficiency and system longevity, with green roofs offering the highest performance gains but facing cost and maintenance barriers. This review also highlights research gaps in the comparative thermal performance of coated metal roofs, clay tiles, and plastic tile roofs, especially under varying sub-Saharan climatic conditions.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918919","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}

引用次数: 0

Assessment of the performance of fuel-efficient stoves and factors determining its adoption: evidence from Northwest Ethiopia 评估节能炉灶的性能和决定采用的因素：来自埃塞俄比亚西北部的证据

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2025-05-07 DOI: 10.1007/s12053-025-10324-2

Belete Debebe, Feyera Senbeta, Demel Teketay, Atsede D. Tegegne

{"title":"Assessment of the performance of fuel-efficient stoves and factors determining its adoption: evidence from Northwest Ethiopia","authors":"Belete Debebe, Feyera Senbeta, Demel Teketay, Atsede D. Tegegne","doi":"10.1007/s12053-025-10324-2","DOIUrl":"10.1007/s12053-025-10324-2","url":null,"abstract":"<div><p>Environmental and health risks stemming from traditional biomass fuel use remain a significant challenge in developing countries like Ethiopia. Improved cooking stoves have become a viable option to reduce these adverse effects; however, the adoption and use rates remain low. This study aims to analyze the performance of <i>Mirt</i>-improved stoves and identify the factors that determine its adoption in Northwest Ethiopia. A kitchen performance test (KPT) was conducted based on three days of repeated firewood measurement on randomly selected 15 <i>Mirt</i>-stove users and 20 three-stone stove user households. Additionally, 420 households were surveyed to identify factors determining the adoption of <i>Mirt</i>-stove. The data were analyzed using descriptive statistics and a binary logistic regression model. An independent t-test was also employed to analyze the kitchen performance test. The KPT results reveal that <i>Mirt</i>-stoves saved about 5.4 kg of firewood/<i>injera</i> baking session, which translates to about 777 kg (40.5%) reduction in firewood use per household per year compared with three-stone stoves. Besides, the KPT results show that <i>Mirt</i>-stoves reduce the time needed to bake <i>injera</i> compared to three-stone stoves by 23.5 min (28%), equivalent to an annual per capita time-saving of about 56.4 h. Further, estimates of the empirical results highlighted that household age, sex, education, family size, type of housing, availability of separate kitchens, access to credit, and access to information significantly and positively influence <i>Mirt</i> stove adoption. In contrast, distance from the stove market and fuel sources have significantly and negatively affected <i>Mirt</i>-stove adoption. The study suggests that fuel-efficient stoves like <i>Mirt</i>, if well adapted to local <i>injera</i> baking needs, can significantly contribute to forest conservations, improving livelihoods and lessening the workloads of women and children in fuelwood collection.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143913932","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}

引用次数: 0

The crisis that normalised time-shifting: Energy flexibility, price awareness and care during the energy crisis in Denmark 使时间转移正常化的危机：丹麦能源危机期间的能源灵活性、价格意识和关怀

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2025-04-28 DOI: 10.1007/s12053-025-10327-z

Kirsten Gram-Hanssen, Ander Rhiger Hanssen, Line Valdorff Madsen, Rikke Skovgaard Nielsen

{"title":"The crisis that normalised time-shifting: Energy flexibility, price awareness and care during the energy crisis in Denmark","authors":"Kirsten Gram-Hanssen, Ander Rhiger Hanssen, Line Valdorff Madsen, Rikke Skovgaard Nielsen","doi":"10.1007/s12053-025-10327-z","DOIUrl":"10.1007/s12053-025-10327-z","url":null,"abstract":"<div><p>The energy crisis during Winter 2022–2023 placed energy high on the public agenda in Denmark, including a hitherto unseen focus on dynamic electricity prices. This paper identifies a normalisation of following electricity prices online during the crisis and changing practices accordingly, the aim of the paper being to learn from this normalisation theoretically as well as policy-wise. The paper is based on a quantitative survey (N = 1000) and in-depth qualitative interviews (n = 30). Results showed that among those who indicate that they have flexible electricity prices almost 70% say that they follow prices daily, and an even larger share indicate that they are more aware of the timing of their electricity use compared to one year ago. Furthermore, more than half of the households used timers on their washing machines and dishwashers to time-shift appliance-use. Through an analysis of variation in interest and practices of time-shifting, we construct a parameter that we call ‘care for the energy system’, which showed more correlations than households’ socio-economy. The qualitative interviews revealed how experiences and engagement in time-shifting of practices for some households was prompted by tight economic constraints and for other households by care for energy and interest in green energy consumption. The results suggest that variable prices coupled with media and authority communication can encourage people to care for the energy system through time-shifting. However, as economic incentives can have social consequences, price signals should be coupled with financial support for vulnerable households.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-025-10327-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143879740","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}

引用次数: 0

Assessing energy poverty indicators towards club convergence in Europe 评估欧洲俱乐部趋同的能源贫困指标

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2025-04-26 DOI: 10.1007/s12053-025-10328-y

George Halkos, Christina Bampatsou, Panagiotis-Stavros Aslanidis

{"title":"Assessing energy poverty indicators towards club convergence in Europe","authors":"George Halkos, Christina Bampatsou, Panagiotis-Stavros Aslanidis","doi":"10.1007/s12053-025-10328-y","DOIUrl":"10.1007/s12053-025-10328-y","url":null,"abstract":"<div><p>Energy poverty is a multidimensional phenomenon tied to discrimination, injustice, and energy aporophobia. The study’s motivation is to explore convergence among 31 European states from 2005 to 2022, using the log t regression test and club clustering. Energy poverty can be measured through three indicators: (i) arrears on utility bills (Arrears), (ii) ability to pay to keep the home adequately warm (Inadequately Warm), and (iii) the presence of a leaking roof, damp walls or rotten windows (Leaks). The novelty lies in quantifying energy poverty with these indicators and analyzing convergence in various regions, including the application of a robustness ordered-logit text and a slope-homogeneity test. The empirical results show that countries with the lowest Arrears scores, like Norway and Sweden, exhibit weak convergence, while those with the highest, such as Greece and Türkiye, demonstrate absolute convergence. For Inadequately Warm, Norway and Iceland also show absolute convergence, whereas for the Leaks indicator, Northern Europe performs better than Southern and Western regions. Geographically, Arrears reveal a core-periphery divide, while Inadequately Warm and Leaks highlight a North–South differentiation.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-025-10328-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877746","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}

引用次数: 0

Enhancing energy efficiency in developing country households: Policy evaluation for household appliances in Ghana 提高发展中国家家庭的能源效率：加纳家用电器政策评估

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2025-04-21 DOI: 10.1007/s12053-025-10319-z

Seidu Agbor Abdul Rauf, Adebayo F. Adekoya, Patrick Mensah, Peter Animbe

{"title":"Enhancing energy efficiency in developing country households: Policy evaluation for household appliances in Ghana","authors":"Seidu Agbor Abdul Rauf, Adebayo F. Adekoya, Patrick Mensah, Peter Animbe","doi":"10.1007/s12053-025-10319-z","DOIUrl":"10.1007/s12053-025-10319-z","url":null,"abstract":"<div><p>The residential sector in Ghana has been identified as an important group for energy efficiency programs in order to meet the country's growing energy demands and also tackle its power shortages. The total final energy consumption of the country stands at 47% for the residential sector, with an average of 31% and 7% for refrigerating and air conditioning, respectively. Improving energy efficiency in the residential sector will not only improve both local and global energy use but will also improve carbon emission reduction. Hence, to ensure that this energy efficiency is achieved, the country enacted four legislative instruments to regulate the importation of cooling appliances (refrigerating and air conditioning), lighting, and other household appliances. These legislative instruments are to ensure that these appliances meet the requirements of the minimum energy performance standards (MEPS). This study provides a quantitative performance evaluation of energy, energy savings, and carbon emissions through the adaptation of the minimum energy performance standards (MEPS), cooling appliance standardization, and labeling programs for Ghanaian households using the appliance and equipment climate impact calculator (MEPSY) modeling method. This quantitative evaluation (energy efficiency policy documents) is based on data acquired from governmental agencies responsible for the energy sector. The outcome revealed that the MEPS program in Ghana has yielded a total savings of over USD 3,100 in financial savings on electricity bills due to energy savings of 23,100KWh in the household sector from 2010 to 2020, while a total of over 12,650GWh of electricity savings was made, translating into financial savings of over USD 2 billion in electricity bill savings with a carbon reduction of 6.5 million tons within the same period at the national level.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856614","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}

引用次数: 0

CO2 emission changes in two Italian regions: progress toward 2050 climate neutrality under the Covenant of Mayors 意大利两个地区的二氧化碳排放变化：根据市长公约实现2050年气候中和的进展

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2025-04-17 DOI: 10.1007/s12053-025-10325-1

Paolo Maria Congedo, Luca Colazzo, Marina Bonomolo, Cristina Baglivo

{"title":"CO2 emission changes in two Italian regions: progress toward 2050 climate neutrality under the Covenant of Mayors","authors":"Paolo Maria Congedo, Luca Colazzo, Marina Bonomolo, Cristina Baglivo","doi":"10.1007/s12053-025-10325-1","DOIUrl":"10.1007/s12053-025-10325-1","url":null,"abstract":"<div><p>In 2008, the European Commission established the Covenant of Mayors (CoM), a voluntary initiative to involve and support local authorities in pursuing the European Union's climate change mitigation and adaptation goals. This study proposes a methodology to evaluate the effectiveness of Sustainable Energy Action Plans (SEAPs) and Sustainable Energy and Climate Action Plans (SECAPs) in terms of reducing carbon dioxide emissions in the regions of Apulia and Sicily. The CO<sub>2</sub> emissions are analyzed at the provincial level, before and after the approval of the plans by the municipal council, using homogeneous consumption data from national sources, rather than from data declared by the CoM signatories themselves. The methodology adopted combines the analysis of variance and compound annual growth rate (CAGR) of emissions, both total and per capita, with an assessment of the level of involvement of municipalities and the population in CoM plans. Through Pearson's coefficient, the correlation between the spread of plans and emissions at the provincial level was also assessed. The main results show that Apulia and Sicily, with a share of approved plans of 45.5% and 87.7%, respectively, experienced a reduction in total emissions of 12.1% and 21.2%, and per capita of 9.3% and 18.7%, in the period after municipalities submitted their SEAPs or SECAPs. A greater effectiveness of the plans is denoted in Sicilian provinces than in Apulian ones. These findings underscore the importance of emissions monitoring by signatory local governments, particularly through a uniform methodology, as well as monitoring at the provincial and regional levels, implemented by the Covenant Territorial Coordinators (CTCs), to assess the implementation of the action plans and ensure that regional and national emission reduction targets are met.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"18 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12053-025-10325-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840463","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}

引用次数: 0

Design and modeling of an optimized interurban smart grid 优化的城际智能电网设计与建模

IF 3.2 4区工程技术

Energy Efficiency Pub Date : 2025-04-16 DOI: 10.1007/s12053-025-10315-3

Carlos Armenta-Déu

引用次数: 0