| 1. |
- Sula, Migena, 1986-, et al.
(författare)
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Adopting Space Sufficiency Interventions as a Means for Accelerating Energy Renovation : Swedish Homeowners’ Perspective
- 2023
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Ingår i: Proceedings of the International Conference “Sustainable Built Environment and Urban Transition”. - : Linnaeus University Press. - 9789180820424
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Konferensbidrag (refereegranskat)abstract
- Residential energy consumption remains a significant driver of CO2 emissions in European buildings, demanding urgent action in the face of the climate crisis. While prevailing efforts have predominantly concentrated on enhancing energy efficiency and integrating renewable sources, addressing the climate urgency and resource constraints necessitates a paradigm shift towards sufficiency principles. Swedish statistics on Single-Family Houses (SFH) show that more than a third of households inhabit oversized spaces in aging buildings needing renovation. Sufficiency-oriented renovation strategies—optimizing, or reducing living areas per capita— present a promising avenue to achieve substantial energy reductions. This approach also opens the potential for space rentals, yielding combined energy and space efficiency advantages. In addition, the literature highlights reduced maintenance costs and potential urban housing crisis mitigation. However, practical implementation faces multiple obstacles.This paper investigates SFH owners' attitudes towards space-sufficiency interventions, focusing on living size preferences and identifying barriers and opportunities for sustainable housing. Through focus group sessions with SFH owners in November-December 2022, qualitative content analysis revealed that reducing living space per capita faces multifaceted challenges, despite potential benefits.These challenges encompass not only personal and psychological considerations but extend to economic, infrastructural, and policy barriers, including issues such as the potential breach of privacy, disruptions due to noise, dilemmas related to ownership and independency, disruptions to work-life dynamics, inadequate familiarity with sufficiency principles, and uncertainty imposed by space constraints. Strategic integration of sufficiency principles into energy-renovation policy alternatives necessitates a holistic approach that addresses these barriers, and some form of incentives may be needed to catalyze the adoption of sufficiency principles effectively.
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| 2. |
- Gustavsson, Leif, et al.
(författare)
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Implementing energy efficiency measures in existing Swedish building stock
- 2008
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Ingår i: World Sustainable Energy Days 2008, 5-7 March 2008, Wels, Austria.
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Konferensbidrag (refereegranskat)abstract
- There is a large potential for improving energy efficiency in the existing Swedish building stock. However, how successful the implementation of the efficiency measures will be, depends on economical and technical factors as well as on the attitudes and perceptions of the relevant actors. In this paper we use Rogers’ diffusion of innovation theory to analyze various factors affecting implementation of energy efficiency measures in the Swedish detached houses and apartment buildings. Results of recent Swedish household surveys concerning adoption of heating systems showed that majority of the respondents were satisfied with their heating systems and did not intend to install a new one. Economic aspects and functional reliability were important factors in the choice of heating systems, while installers/vendors were the most important sources of information on heating system. We discuss upcoming empirical studies on implementation of other energy efficiency measures, e.g. energy efficient windows and additional insulation, including that of heating systems, in detached houses and apartment buildings.
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| 3. |
- Mahapatra, Krushna, 1974-, et al.
(författare)
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Perceptional and socio-economic factors in adoption of low energy houses
- 2009
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Ingår i: International Scientific Conference on Energy systems with IT, March 11-12, in connection with 'Energitiget 2009', Stockholm, Sweden.
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Konferensbidrag (refereegranskat)abstract
- Diffusion of low energy houses reduces greenhouse emission from residential sector. However, adoption of such houses depends on the perception of the potential buyers. In this paper we have analyzed Swedish homeowners’ perception of low energy houses. Data was collected in 2008 from a mail-in questionnaire survey of about 3000 owners of detached houses. Results showed that about 39% of respondents, especially young, educated or whose household income was high, would consider buying a low energy house. Majority of the respondents agreed that a low energy house in comparison to a conventional house has lower operating energy cost, but higher investment cost. Majority thought that low energy houses do not have lower resale value, lower aesthetic appearance, or greater operational difficulty.
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| 4. |
- Mahapatra, Krushna, 1974-, et al.
(författare)
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Policy instruments to promote energy efficiency in the building sector: Indian and Swedish experiences
- 2008
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Ingår i: 14th Annual International Sustainable Development Research Conference, 21-23 September, New Delhi, India.
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Konferensbidrag (refereegranskat)abstract
- Energy efficiency measures in buildings are widely regarded as cost effective options to mitigate climate change. However, policy instruments are needed to improve the diffusion of such measures. The policy mix may be country-specific. Here, we compare and contrast the various policy instruments designed to enhance energy efficiency in the building sector in India and Sweden. The objective is to explore if the experiences of Sweden that have promoted energy efficiency in buildings for decades could be useful for India, where energy demand is forecasted to strongly increase. India and Sweden are very different, for example, in terms of development, size, priorities, population, and climatic conditions. In Sweden, policy initiatives to reduce energy use in buildings date back to the 1970s and the government is committed to significantly reduce energy use in buildings. In India, the interest in energy efficiency improvements in buildings is a recent phenomenon. The country introduced an energy conservation building code in 2007. This analysis shows that policy instruments are more prevalent in Sweden than in India where regulatory instruments are particularly lacking. Hence, Swedish buildings are more energy efficient than those in India. The Swedish experience could be useful for devising programs and implementing policy instruments to improve energy efficiency of Indian buildings.
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| 5. |
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| 6. |
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| 7. |
- Devendran, Aarthi Aishwarya, 1986-, et al.
(författare)
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Optimization of Municipal Waste Streams in Achieving Urban Circularity in the City of Curitiba, Brazil
- 2023
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Ingår i: Sustainability. - : MDPI AG. - 2071-1050. ; 15:4
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Tidskriftsartikel (refereegranskat)abstract
- The municipal solid waste (MSW) remains a great challenge in most cities of developing countries, as the majority of the generated waste is either not collected or is dumped in open uncontrolled non-engineered landfill sites, creating significant pollution due to the leakage of landfill leachate in the surrounding environment. In developing countries, a complete transition to a zero-landfill scenario is less likely to happen in the near future due to various socio-economic challenges. Therefore, the existing landfills in developing countries need holistic waste management thinking with more efforts on waste to energy conversions. This study highlights the challenges with existing MSW management practices of Curitiba, Brazil, and suggests some holistic and sustainable landfill management techniques. This is accomplished through the (i) identification of the suitable sites for setting up transfer stations (TSs), (ii) route optimization for MSW transportation, and (iii) analysis of the life expectancy of the existing landfill with waste valorization techniques for enhancing circularity of MSW of the city. The study has identified six potential TSs, making use of various geological criteria and constraints as suggested by the United States Environmental Protection Agency using GIS-based spatial analysis, which could save fuel cost of approximately 1.5 million Brazilian Real (BRL) per year for the solid waste transportation (from the source to the landfill site). This research has also made a value addition in this specific field with the preparation of a digitized road network map of the study region. Further, the sensitivity-based scenario analysis highlights that the lifespan of the existing landfill (until 2030) might be extended to 2058 if the city achieves the targeted recycling rate of 85% compared with the current rate of 23%. The results would be useful for policy-makers to adopt the crucial MSW scenario to achieve a circular economy in the waste management of the city of Curitiba.
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| 8. |
- Aarthi, Aishwarya Devendran, et al.
(författare)
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Implementation of GIS-AHP Framework for the Identification of Potential Landfill Sites in Bengaluru Metropolitan Region, India
- 2023
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Ingår i: The 9th International Conference on Energy and Environment Research. ICEER 2022.. - : Springer. - 9783031435584 - 9783031435591 ; , s. 809-818
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Konferensbidrag (refereegranskat)abstract
- Uncontrolled open dumping and burning of municipal solid waste (MSW) has resulted in soil, water, and air pollution in many urban cities in India. Landfills are the most common cost-effective solution for MSW management in many developing countries like India. However, the identification of suitable landfill sites always remains a challenging task as it involves the selection of several environmental criteria set by the local authorities. The objective of this study is to identify the most potential landfill sites proposed by the Government in Bengaluru Metropolitan Region, Karnataka state, India using Geographic Information System enabled Analytical Hierarchy Process based multi-criteria evaluation technique. Several criteria and constraints as recommended by the local authorities along with the proximity to the solid waste processing plants are used to identify the potential landfill sites in the study region. The study identified three highly suitable sites (Neraluru, Gudhatti, Madivala) for landfills which are not only environmentally sustainable but also economically attractive as they are closer to the solid waste processing plants minimizing the transportation cost involved in the disposal of solid waste from the source to the final disposal sites in the study region.
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| 9. |
- Bravo, Giangiacomo, et al.
(författare)
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Physical vs. Aesthetic Renovations : Learning from Swedish House Owners
- 2019
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Ingår i: Buildings. - : MDPI. - 2075-5309. ; 9:1
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Tidskriftsartikel (refereegranskat)abstract
- In this paper, we identify the socio-economic attributes and attitudes that have influencedhouse owners in renovating their homes in the past. Our study is based on responses to an onlinequestionnaire survey of 971 house owners living in Kronoberg County in Sweden. Results showedthat the interest and willingness of the house owners to perform a renovation varied dependingon their demographic background and the age of the house. The latter positively affected pastrenovations, only when combined with the residence time. Furthermore, the age of house ownersstrongly and positively affected the probability of performing aesthetic type of renovations, becauseof a long time of residence in the house. Younger, town living, and highly educated house ownersseem to be more concerned regarding saving energy, which motivated them to perform physicalrenovations on their house. Our results also suggest that income, level of education, and place ofresidence have an effect on renovation decisions only through their effect on the energy concern ofhouse owners, and a varied effect on renovation decisions, when combined with the time of residencein the house.
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| 10. |
- Mokhtara, Charafeddine, 1992-, et al.
(författare)
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Urban Heat Island Risk Assessment and Mapping in the Swedish Residential Sector
- 2023
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Ingår i: Proceedings of the International Conference “Sustainable Built Environment and Urban Transition” / Climate change, resilience, and adaptation of urban built environment. - : Linnaeus University Press. - 9789180820424
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Konferensbidrag (refereegranskat)abstract
- Although Scandinavian countries, including Sweden, are relatively less vulnerable to climate change, Swedish residential dwellings specifically those constructed before the 1975s are likely to be impacted by current extreme weather events (EWE) such as urban heat islands (UHI). This EWE can worsen air quality, increase heat-related illnesses (particularly among vulnerable populations), and raise maintenance costs and energy demand for cooling in buildings.This study aimed to map UHI risk in Sweden's residential sector using a scenario-based analysis approach. Moderate Resolution Imaging Spectroradiometer (MODIS) Remote sensing (RS) imagery data (land surface temperature (LST)) and some statistical data (including the number of houses, building typologies, and characteristics) collected from the SCB (Statistics Sweden) and TABULA database are used. The overall UHI risk maps for Sweden are developed following the risk matrix approach, by weighting and aggregating the created maps for UHI hazard, building exposure, and vulnerability. Here, the geographical information system ArcGIS pro 3.1 was used to carry out the different spatial analysis tasks, including pre-processing of spatial data, developing required maps, and performing raster calculations.The outcomes reveal a range of areas posing risks, with most high-risk zones situated in the southern and southeastern regions. Moreover, there is a discernible impact of the UHI on most of the buildings across Sweden constructed prior to the 1960s. Nevertheless, for structures built between 1961 to 1975, only those in the southern regions display potential susceptibility to the UHI. Furthermore, the western areas exhibit a low UHI risk.Despite the limitation of data used, the findings of this study have practical implications, as they can help homeowners, renovation companies, and policymakers implement appropriate adaptation strategies. The approach used is comprehensive, easily applicable, scalable, and can be replicated anywhere, assisting in the development of climate-resilient buildings not only in Sweden but also in other regions.
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