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Mainali, Brijesh, DrORCID iD iconorcid.org/0000-0003-0189-474x
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Publications (10 of 53) Show all publications
Sula, M., Mahapatra, K., Mainali, B., Rupar-Gadd, K. & Pardalis, G. (2023). Adopting Space Sufficiency Interventions as a Means for Accelerating Energy Renovation: Swedish Homeowners’ Perceptive. In: 2023: Proceedings of the International Conference “Sustainable Built Environment and Urban Transition”: . Paper presented at Sustainable Built Environment and Urban Transition,Linnaeus University, October 12-13, 2023, Växjö. Linnaeus University Press
Open this publication in new window or tab >>Adopting Space Sufficiency Interventions as a Means for Accelerating Energy Renovation: Swedish Homeowners’ Perceptive
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2023 (English)In: 2023: Proceedings of the International Conference “Sustainable Built Environment and Urban Transition”, Linnaeus University Press , 2023Conference paper, Published paper (Refereed)
Abstract [en]

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.

Place, publisher, year, edition, pages
Linnaeus University Press, 2023
Keywords
Sufficiency, climate mitigation, sustainable housing, energy renovations, single-family houses, homeowners, focus group
National Category
Engineering and Technology Environmental Engineering Other Environmental Engineering
Research subject
Technology (byts ev till Engineering), Sustainable Built Environment
Identifiers
urn:nbn:se:lnu:diva-125342 (URN)9789180820424 (ISBN)
Conference
Sustainable Built Environment and Urban Transition,Linnaeus University, October 12-13, 2023, Växjö
Projects
Scaling up energy renovation through smart design and one-stop-shop business model
Funder
Knowledge Foundation, Hög 20
Available from: 2023-10-27 Created: 2023-10-27 Last updated: 2023-10-30Bibliographically approved
Almeida, R., Mahapatra, K. & Mainali, B. (2023). Analytical review of methodological approaches for measuring circularity in building renovation. In: Proceedings of the International Conference “Sustainable Built Environment and Urban Transition”: 12-13 October, Växjö. Paper presented at Sustainable Built Environment and Urban Transition October 12-13, 2023, Linnaeus University, Växjö. Växjö: Linnaeus University Press
Open this publication in new window or tab >>Analytical review of methodological approaches for measuring circularity in building renovation
2023 (English)In: Proceedings of the International Conference “Sustainable Built Environment and Urban Transition”: 12-13 October, Växjö, Växjö: Linnaeus University Press, 2023Conference paper, Published paper (Refereed)
Abstract [en]

Circularity in construction industry requires understanding of the complex system dynamics, which are affected by various building layers and societal systems. While the existing building stock offers opportunities to enable re-looping of construction and demolition waste, the assessment of building circularity performance is not straightforward, due to lack of standard database, methods, and tools. This may lead to subjective interpretations by practitioners who rely on lifecycle assessment (LCA) approach complemented with circularity indicators (C-indicators) to know the level of circularity (LOC) of building materials, components, and elements. Thus, these C-indicators requires careful evaluation of the current methodological approaches. The aim of this paper is to map and evaluate the nexus between assessment methodologies highlighting their strengths, limitations, and areas of improvement. In this study, a complementary approach of systematic literature review and design research concept was used to classify seven primary aspects covering 18 key performance indicators, that impact the system thinking approach of the renovation project. The critical analysis of ten distinguished C-indicators show conditional, beneficial and trade-off relationships between various indicators. At the same time, the dynamic aspect of re-looping the resources is missing in these indicators and sustainability is accounted by complementing lifecycle impacts rather than coupling them. Results of this review highlight substantial gaps in C-indicators applicability for renovation projects with emphasis to formulate a practical guidance to assess recirculation of materials throughout the value chain. 

Place, publisher, year, edition, pages
Växjö: Linnaeus University Press, 2023
Keywords
system thinking, built-environment, resource efficiency, environment impact assessment, comparative analysis
National Category
Building Technologies
Research subject
Technology (byts ev till Engineering), Sustainable Built Environment
Identifiers
urn:nbn:se:lnu:diva-125391 (URN)9789180820424 (ISBN)
Conference
Sustainable Built Environment and Urban Transition October 12-13, 2023, Linnaeus University, Växjö
Available from: 2023-10-31 Created: 2023-10-31 Last updated: 2023-11-02Bibliographically approved
Jha, A. K., Andrae, A. S. G. & Mainali, B. (2023). Comparison of Methods for Calculating Indirect Upstream Carbon Emissions from Information and Communication Technology Manufacturing. WSEAS Transactions on Environment and Development, 19, 1045-1057
Open this publication in new window or tab >>Comparison of Methods for Calculating Indirect Upstream Carbon Emissions from Information and Communication Technology Manufacturing
2023 (English)In: WSEAS Transactions on Environment and Development, ISSN 1790-5079, Vol. 19, p. 1045-1057Article in journal (Refereed) Published
Abstract [en]

The use of Information Communication technology (ICT) is rapidly increasing in an age ofdigitalization. Measurement of carbon dioxide equivalent (CO2e) emissions from ICT is crucial for reducingthem. Most ICT organizations focus on Scope 1 and 2 emissions as they have greater control over them, commonly ignoring Scope 3 emissions. Scope 3 Category 1 (S3C1) emissions occur throughout the rawmaterial acquisition and manufacturing stages of an ICT product's life cycle accounting for a large portion ofthe sector's overall CO2e emissions and energy consumption. By not reporting Scope 3 emissions, companieslose the ability to reduce their overall CO2e corporate emissions. Although Category 1 and 11 under Scope 3account for 85% of ICT's worldwide CO2e emissions, the methodologies for calculating S3C1 emissions in ICTare understudied. This study focuses on these emissions in the framework of Sustainable Development Goals 9,12, and 13. Product life cycle assessment (PLCA) and Spend-based methods have been used to analyze S3C1emissions in the ICT sector with two case examples of laptop computers and smartphones. The ExcelManagement Life Cycle Assessment (EMLCA) tool has been used for the S3C1 emissions estimation. PLCAand Spend-based methods are compared on their ability to calculate CO2e emissions. It is concluded that theSpend-based is faster than PLCA for predicting ICT emissions with modest uncertainty for smartphone andlaptop components. Furthermore, this work explores the advantages and downsides of both methods. 

Keywords
CO2e emissions, GHG protocol, Information Communication Technology (ICT) Sector, Laptop computer, Product Life Cycle Assessment, Scope 3 Category 1 emissions, Spend-based.
National Category
Energy Systems Environmental Management
Identifiers
urn:nbn:se:lnu:diva-125349 (URN)10.37394/232015.2023.19.99 (DOI)2-s2.0-85177662651 (Scopus ID)
Available from: 2023-10-28 Created: 2023-10-28 Last updated: 2024-01-18Bibliographically approved
Thapa, P., Mainali, B. & Dhakal, S. (2023). Focus on Climate Action: What Level of Synergy and Trade-Off Is There between SDG 13; Climate Action and Other SDGs in Nepal?. Energies, 16(1), Article ID 566.
Open this publication in new window or tab >>Focus on Climate Action: What Level of Synergy and Trade-Off Is There between SDG 13; Climate Action and Other SDGs in Nepal?
2023 (English)In: Energies, E-ISSN 1996-1073, Vol. 16, no 1, article id 566Article in journal (Refereed) Published
Abstract [en]

The Sixth Assessment Report of the Inter-Governmental Panel on Climate Change (IPCC)has highlighted the urgency of accelerated climate actions harnessing synergies and minimizing trade-offs with various SDG. This calls for a clear understanding of linkages between climate goals and other SDGs at the national level for formulating synergistic policies and strategies and developing different sectoral programs and coherent cross-sectoral policies. This is even more important forleast developed countries such as Nepal where these linkages are less understood and development challenges are multifaceted. In this context, this paper aims to evaluate potential synergies and trade-offs among selected SDGs and their associated targets in Nepal in a linear pairwise comparison. Synergies and trade-offs related to climate action (SDG 13), access to energy (SDG 7), sustainable consumption and production (SDG 12), and life on land (SDG 15) have been evaluated using historical data for the period from 1990 to 2018 employing a mixed methods approach. Network analysis tomap the conceptual linkages between the SDGs and their targets was combined with the advanced sustainability analysis (ASA) to quantitatively evaluate the synergy and trade-offs between SDGs.The results illustrate the presences of a continual trade-off between the emission reduction targets of SDG 13 with per capita energy consumption and share of renewable energy of SDG 7, land use for agricultural production target of SDG 12, and forest area target of SDG 15. This indicates that climate action is strongly interlinked with GHG emissions from economic activities and energy consumption. The results of the study represent a valuable input for the policymakers, supporting coherent and sustainable development planning as Nepal plans to graduate to a middle-income country.

Place, publisher, year, edition, pages
MDPI, 2023
National Category
Energy Systems Climate Research
Research subject
Technology (byts ev till Engineering), Bioenergy Technology
Identifiers
urn:nbn:se:lnu:diva-118216 (URN)10.3390/en16010566 (DOI)000908702000001 ()2-s2.0-85145646275 (Scopus ID)
Available from: 2023-01-10 Created: 2023-01-10 Last updated: 2023-08-28Bibliographically approved
Aarthi, A. D., Mainali, B., Khatiwada, D., Golzar, F. & Mahapatra, K. (2023). Implementation of GIS-AHP Framework for the Identification of Potential Landfill Sites in Bengaluru Metropolitan Region, India. In: Nídia S. Caetano; Manuel Carlos Felgueiras (Ed.), Caetano, N.S., Felgueiras, M.C. (Ed.), The 9th International Conference on Energy and Environment Research. ICEER 2022.: . Paper presented at The 9th International Conference on Energy and Environment Research. ICEER 2022.. Springer
Open this publication in new window or tab >>Implementation of GIS-AHP Framework for the Identification of Potential Landfill Sites in Bengaluru Metropolitan Region, India
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2023 (English)In: The 9th International Conference on Energy and Environment Research. ICEER 2022. / [ed] Caetano, N.S., Felgueiras, M.C., Springer, 2023Conference paper, Published paper (Refereed)
Abstract [en]

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.

Place, publisher, year, edition, pages
Springer, 2023
Series
Environmental Science and Engineering, ISSN 1863-5520, E-ISSN 1863-5539
Keywords
Municipal solid waste, Landfill site selection, Circular economy, GIS enabled AHP technique, Bengaluru Metropolitan region
National Category
Environmental Management Energy Systems
Research subject
Technology (byts ev till Engineering), Bioenergy Technology
Identifiers
urn:nbn:se:lnu:diva-125925 (URN)10.1007/978-3-031-43559-1_77 (DOI)2-s2.0-85185558689 (Scopus ID)9783031435584 (ISBN)9783031435591 (ISBN)
Conference
The 9th International Conference on Energy and Environment Research. ICEER 2022.
Available from: 2023-12-07 Created: 2023-12-07 Last updated: 2024-02-29Bibliographically approved
Sinha, S., Mainali, B., Mahapatra, K. & Mazaheri, A. (2023). Integrating Digital Tools in One-Stop-Shop Business Models for Climate-Smart Single-Family Home Renovation in the European Union. In: Proceedings of the International Conference “Sustainable Built Environment and Urban Transition”: . Paper presented at Sustainable Built Environment and Urban Transition, 12-13 October, Växjö. Växjö, Sweden: Linnaeus University Press
Open this publication in new window or tab >>Integrating Digital Tools in One-Stop-Shop Business Models for Climate-Smart Single-Family Home Renovation in the European Union
2023 (English)In: Proceedings of the International Conference “Sustainable Built Environment and Urban Transition”, Växjö, Sweden: Linnaeus University Press , 2023Conference paper, Published paper (Refereed)
Abstract [en]

The ageing building stock in the European Union (EU) is not adequately equipped to deal with the changing climate, posing a significant challenge for climate change mitigation and adaptation. This has driven governmental institutions and private firms to expedite their renovation efforts; integration of one-stop-shop (OSS) regimes for encouraging higher rates of renovation could stimulate the rate of renovation by up to 6% annually, the aimed rate for the 2030 Renovation Wave by the European Commission. While OSS solutions present a great opportunity for addressing the challenges posed by climate change by allowing older homes to become better prepared through climate-smart retrofitting, these solutions have had mixed results in the past. Given the urgency of the situation as predicted in various scenarios by the IPCC, it is imperative to assess the effectiveness of OSS solutions in accelerating the rate of renovation. This research aims to investigate how the digitalisation of aspects of the customer journey of an end user participating in an OSS home renovation platform can lead to overcoming challenges faced by previously implemented instances of it. 

To answer this question, first a systematic literature review of previous OSS schemes implemented in Europe, digital tools commonly applied for renovation, and state-of-the-art strategies and models to facilitate customer journeys were studied. Through the characterisation of these mechanisms, opportunities for the integration of digital tools were identified and suggested for each stage of the customer journey. It was found that through the utilisation of technologies such as application programming interfaces (API), for increased access and real-time updating; blockchain infrastructure for information transparency and symmetry, and urban building energy modelling for predictive assessment, some important pitfalls of OSS implementation can be addressed. This study is expected to contribute to the renovation sector, ultimately leading to improving buildings' adaptive capacity, which is critical for the EU's sustainable development objectives going forward.

Place, publisher, year, edition, pages
Växjö, Sweden: Linnaeus University Press, 2023
Keywords
climate adaptation, retrofit, one-stop shop, blockchain, urban building energy modelling
National Category
Climate Research
Research subject
Technology (byts ev till Engineering), Sustainable Built Environment
Identifiers
urn:nbn:se:lnu:diva-125985 (URN)9789180820424 (ISBN)
Conference
Sustainable Built Environment and Urban Transition, 12-13 October, Växjö
Funder
Swedish Research Council Formas, 2021-02389
Available from: 2023-12-12 Created: 2023-12-12 Last updated: 2024-01-10Bibliographically approved
Devendran, A. A., Mainali, B., Khatiwada, D., Golzar, F., Mahapatra, K. & Toigo, C. H. (2023). Optimization of Municipal Waste Streams in Achieving Urban Circularity in the City of Curitiba, Brazil. Sustainability, 15(4), Article ID 3252.
Open this publication in new window or tab >>Optimization of Municipal Waste Streams in Achieving Urban Circularity in the City of Curitiba, Brazil
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2023 (English)In: Sustainability, E-ISSN 2071-1050, Vol. 15, no 4, article id 3252Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
MDPI, 2023
Keywords
municipal solid waste management; circular economy; GIS-based spatial analysis; landfill lifespan estimation; Curitiba
National Category
Environmental Engineering Energy Systems
Research subject
Technology (byts ev till Engineering), Bioenergy Technology
Identifiers
urn:nbn:se:lnu:diva-119276 (URN)10.3390/su15043252 (DOI)000941408800001 ()2-s2.0-85149223148 (Scopus ID)
Projects
FORMAS
Funder
Swedish Research Council Formas, 2017-00266
Available from: 2023-02-12 Created: 2023-02-12 Last updated: 2023-05-02Bibliographically approved
Mokhtara, C., Sinha, S., Mainali, B. & Mahapatra, K. (2023). Urban Heat Island Risk Assessment and Mapping in the Swedish Residential Sector. In: Proceedings of the International Conference “Sustainable Built Environment and Urban Transition” / Climate change, resilience, and adaptation of urban built environment: . Paper presented at Sustainable Built Environment and Urban Transition October 12-13, 20233, Linnaeus University, Växjö. Linnaeus University Press
Open this publication in new window or tab >>Urban Heat Island Risk Assessment and Mapping in the Swedish Residential Sector
2023 (English)In: Proceedings of the International Conference “Sustainable Built Environment and Urban Transition” / Climate change, resilience, and adaptation of urban built environment, Linnaeus University Press, 2023Conference paper, Published paper (Refereed)
Abstract [en]

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.

Place, publisher, year, edition, pages
Linnaeus University Press, 2023
Keywords
climate change, climate risk assessment, urban heat island, land surface temperature, adaptation, mitigation, resilience, sustainability.
National Category
Energy Systems Environmental Management Environmental Analysis and Construction Information Technology
Research subject
Technology (byts ev till Engineering), Sustainable Built Environment
Identifiers
urn:nbn:se:lnu:diva-125343 (URN)9789180820424 (ISBN)
Conference
Sustainable Built Environment and Urban Transition October 12-13, 20233, Linnaeus University, Växjö
Available from: 2023-10-28 Created: 2023-10-28 Last updated: 2023-12-11Bibliographically approved
Pardalis, G., Mahapatra, K. & Mainali, B. (2022). A business model canvas framework for sustainable one-stop-shops. In: : . Paper presented at SBE22Delft - Innovations for the Urban Energy Transition: Preparing for the European Renovation Wave 11/11/2022-13/11/2022 Delft, Netherlands. Bristol, United Kingdom: Institute of Physics (IOP), 1085, Article ID 012048.
Open this publication in new window or tab >>A business model canvas framework for sustainable one-stop-shops
2022 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The Sustainable Business Model Canvas (SBMC) offers a useful tool for business model design, as it manages to integrate all three dimensions of sustainability without distinguishing between three different layers (economic, environmental, and social). This paper presents the application of SBMC in a real study case of a one-stop-shop (OSS) for the renovation of single-family houses operating inKronoberg province in Sweden. The case is based on shifting from the current approach of the OSS, making interventions that will lead to the development of a "new" OSS which can reach the highest possible sustainability potential. A two-stage comprehensive assessment process for the "new" model is proposed, following a lifecycle perspective. The use of SBMC and the assessment process allows both existing and under-development OSSs to gain a better understanding of different alternatives regarding their business, and how these alternatives improve or weaken their existing business model. This work also proposes the steps that should be followed to assess the impact of potential intervention in the business model on the sustainability performance of an OSS. There is a need though to acquire relevant data to make a more detailed evaluation of the economic, environmental, and social burdens and benefits of an OSS. Such an evaluation will lead to more well-informed interpretations regarding the sustainability performance of different OSSs.

Place, publisher, year, edition, pages
Bristol, United Kingdom: Institute of Physics (IOP), 2022
Series
IOP Conference Series: Earth and Environmental Science, ISSN 1755-1307, E-ISSN 1755-1315 ; 1085
Keywords
sustainable business model canvas, one-stop-shop, lifecycle assessments, sustainable buildings, circular economy
National Category
Other Engineering and Technologies Other Environmental Engineering
Research subject
Technology (byts ev till Engineering), Sustainable Built Environment; Technology (byts ev till Engineering); Economy
Identifiers
urn:nbn:se:lnu:diva-116600 (URN)10.1088/1755-1315/1085/1/012048 (DOI)2-s2.0-85140056287 (Scopus ID)
Conference
SBE22Delft - Innovations for the Urban Energy Transition: Preparing for the European Renovation Wave 11/11/2022-13/11/2022 Delft, Netherlands
Projects
Sustainable housing for strong communities (Stronghouse)
Funder
Interreg North Sea Region, J-No 38-2-15-19
Available from: 2022-10-01 Created: 2022-10-01 Last updated: 2022-11-16Bibliographically approved
Sula, M., Mahapatra, K. & Mainali, B. (2022). Additional Dwelling Units: Can they finance energy renovation?. In: eceee 2022 Summer Study on energy efficiency: agents of change, European Council for an Energy Efficient Economy (ECEEE), 2022: . Paper presented at eceee 2022 Summer Study on energy efficiency: Agents of Change. European Council for an Energy Efficient Economy (ECEEE), 2022, Article ID 8-296-22.
Open this publication in new window or tab >>Additional Dwelling Units: Can they finance energy renovation?
2022 (English)In: eceee 2022 Summer Study on energy efficiency: agents of change, European Council for an Energy Efficient Economy (ECEEE), 2022, European Council for an Energy Efficient Economy (ECEEE), 2022 , 2022, article id 8-296-22Conference paper, Published paper (Refereed)
Abstract [en]

In Northern Europe, Single Family Housings (SFH) constitute a large share of the total building stock. In Sweden, more than 52% of the population lives in SFH. Most of these houses were built between 1960-80 and are currently needing renovation. Most of these houses are owned by older adults whose kids have moved away, and thus they live in housing over-dimensioned to their needs with a large share of energy consumption for space heating. Furthermore, these facilities are neither elderly-friendly nor energy-efficient, deeming major renovation.

 

This paper applies a case-study approach to explore options to better utilize and reduce the living area per capita through the generation of Additional Dwellings Unit (ADU) within the existing building stock owned by the elderly. The case study SFH owned by an elderly couple is located in Kronoberg Region, Sweden, and is a typical SFH built during the 1970s. We redesign and restructure the underused space to create an ADU that can be rented out, which in turn may economize the high investment costs of energy-efficient renovation. The energy efficiency renovation measures considered were improvement of the building's climate shell (envelope), extra insulation in the walls and attic, and better performance doors and windows. Energy simulations and life cycle cost assessment of the energy efficiency measures, and space redesign showed that it is possible to reduce energy use by 61% compared to the existing condition of the reference house and a payback time of 59% compared to the application of the energy measures alone. The proposed intervention is aligned with the aging in place strategy, tackling it from a space sufficiency perspective. The proposed intervention reduces the living space per resident by 40% and energy consumption per capita by 62% compared to just the energy renovation of the reference house while creating cash inflows that motivate the houseowner to uptake an energy renovation. The improved energy performance of the building may generate better indoor living conditions for a healthier life for the residents.

Place, publisher, year, edition, pages
European Council for an Energy Efficient Economy (ECEEE), 2022, 2022
Series
eceee 2022 Summer Study on energy efficiency, ISSN 1653-7025, E-ISSN 2001-7960 ; 2022
Keywords
space heating, building design, housing refurbishment, detached houses, elderly-friendly, social innovation, design innovation
National Category
Building Technologies Energy Systems Environmental Analysis and Construction Information Technology
Research subject
Technology (byts ev till Engineering), Sustainable Built Environment
Identifiers
urn:nbn:se:lnu:diva-116876 (URN)9789198827002 (ISBN)9789198827019 (ISBN)
Conference
eceee 2022 Summer Study on energy efficiency: Agents of Change
Projects
Scaling up energy renovation through smart design and one-stop-shop business modelSustainable housing for strong communities (Stronghouse)
Funder
Knowledge Foundation, Hög 20Interreg North Sea Region, J-No 38-2-15-19Swedish Research Council Formas, 2019-00219
Available from: 2022-10-17 Created: 2022-10-17 Last updated: 2023-04-18Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0003-0189-474x

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