umu.sePublications
Change search
Link to record
Permanent link

Direct link
BETA
Azizi, Shoaib
Publications (4 of 4) Show all publications
Azizi, S., Nair, G. & Olofsson, T. (2019). Analysing the house-owners’ perceptions on benefits and barriers of energy renovation in Swedish single-family houses. Energy and Buildings, 198, 187-196
Open this publication in new window or tab >>Analysing the house-owners’ perceptions on benefits and barriers of energy renovation in Swedish single-family houses
2019 (English)In: Energy and Buildings, ISSN 0378-7788, E-ISSN 1872-6178, Vol. 198, p. 187-196Article in journal (Refereed) Published
Abstract [en]

Single-family houses offer a large potential for energy savings by energy renovation (ER). Homeowners’ motivation to implement ER derives from the benefits and barriers they perceive. Benefits are the positive consequences that can motivate homeowners to act and barriers are the challenges that demotivate them to undertake ER. Different benefits and barriers do not homogenously affect every homeowner. Identifying motivating benefits and demotivating barriers for each specific group among homeowners can shed lights on ER decision-making and enable policies that are more effective. The objective of this study is to contextualize the implementation of ER by understanding how the perceived benefits and barriers influence homeowners. This study links the expected consequences, which are benefits and barriers to the influential factors on ER, which are used to group the homeowners.

The analysis is based on a questionnaire survey mailed to 1550 owners of single-family houses in northern Sweden. The perceptions of homeowners on benefits and barriers of ER are significantly different between the groups that are motivated and unmotivated to implement ER. Despite the perceived importance of some of the benefits such as energy cost reduction, they may not be determinative for the homeowners’ decision to undertake ER. The homeowners are more likely to implement ER for reasons other than energy use reduction such as for improving the indoor environment. The barriers such as the difficulty of finding a low-interest loan and reliable information sources are found to impede the intention to implement ER among different groups. Policy implications to facilitate ER in single-family houses are discussed.

Place, publisher, year, edition, pages
Elsevier, 2019
Keywords
Energy efficient renovation, Investment decision, Perceptions, Implementation, House-owners, Sweden
National Category
Energy Systems
Research subject
environmental science
Identifiers
urn:nbn:se:umu:diva-160337 (URN)10.1016/j.enbuild.2019.05.034 (DOI)2-s2.0-85066929243 (Scopus ID)
Projects
renovatin center
Available from: 2019-06-17 Created: 2019-06-17 Last updated: 2019-08-14Bibliographically approved
Azizi, S., Nair, G. & Olofsson, T. (2019). Demand-controlled energy systems in commercial and institutional buildings: a review of methods and potentials. In: eceee 2019 Summer Study on energy efficiency:: Is efficient sufficient?. Paper presented at eceee 2019 Summer Study, Belambra Presqu'île de Giens, France, 03–08 June, 2019 (pp. 1444-1450). European Council for an Energy Efficient Economy (ECEEE)
Open this publication in new window or tab >>Demand-controlled energy systems in commercial and institutional buildings: a review of methods and potentials
2019 (English)In: eceee 2019 Summer Study on energy efficiency:: Is efficient sufficient?, European Council for an Energy Efficient Economy (ECEEE), 2019, p. 1444-1450Conference paper, Published paper (Refereed)
Abstract [en]

Heating, ventilation and air-conditioning (HVAC) are by farthe most energy intensive systems in commercial and institutionalbuildings with office spaces. This makes HVAC systemsattractive targets for energy efficiency improvement. New technologicaladvancements can play significant role on improvingenergy efficiency. Such advancements have been also emergedin form of novel management and control strategies, whichmight lead to considerable energy savings with relatively minorinvestments. This paper evaluates demand control HVAC andlighting to assess the energy saving potential of upgrading theconventional building energy systems.

This paper provides a summary of different methods and occupancydetection technologies. A range of technologies andmethods are covered that vary in complexity, limitations andenergy saving potential. Additional benefits such as demandresponse are evaluated and other emerging applications arediscussed. Based on the review of methods and potentials, thepaper assesses the state of the art in demand controlled energysystems and suggests areas for further research.

Place, publisher, year, edition, pages
European Council for an Energy Efficient Economy (ECEEE), 2019
Series
eceee Summer Study proceedings, ISSN 1653-7025, E-ISSN 2001-7960
Keywords
occupancy detection, demand-side management
National Category
Energy Systems
Identifiers
urn:nbn:se:umu:diva-160341 (URN)978-91-983878-5-8 (ISBN)978-91-983878-4-1 (ISBN)
Conference
eceee 2019 Summer Study, Belambra Presqu'île de Giens, France, 03–08 June, 2019
Available from: 2019-06-17 Created: 2019-06-17 Last updated: 2019-06-18Bibliographically approved
Azizi, S., Nair, G. & Olofsson, T. (2018). Comparative Study of Influential Factors on Implementation of Energy Efficiency Measures in Single-Family Houses in Cold Climate. In: : . Paper presented at 2018 ACEEE Summer Study in Energy Efficiency in Buildings, Pacific Grove, CA, August 12-17, 2018. ACEEE - American Council for Energy-Efficient Economy
Open this publication in new window or tab >>Comparative Study of Influential Factors on Implementation of Energy Efficiency Measures in Single-Family Houses in Cold Climate
2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

A combination of factors, which include occupants and building related aspects, could motivate homeowners to implement energy renovation (ER). This study applies a comparative approach to assess perspectives of single-family homeowners towards different energy efficiency measures (EEMs). The aim is to unveil the factors that are effective on the residents’ attitude and decision making to implement an EEM or a set of EEMs. The analysis is based on a questionnaire survey conducted during spring 2017 among1550 owners of single-family houses in seven municipalities in northern Sweden. Approximately, 35% of respondents expressed their interest to install energy efficient household appliances and solar photovoltaic (PV) systems. The analysis suggests significant relations between the homeowners’ interest to implement thermal envelope measures and the quality of the house such as age and indoor environmental problems such as cold surfaces. The group of respondents, who reported their heating cost to be high, are more likely to be interested in implementing thermal envelope measures than other measures such as HVAC. Several socio-economic factors are found to be significantly related with homeowners’ interest to implement EEMs.

Place, publisher, year, edition, pages
ACEEE - American Council for Energy-Efficient Economy, 2018
Keywords
Energy efficient renovation
National Category
Energy Engineering
Identifiers
urn:nbn:se:umu:diva-151878 (URN)
Conference
2018 ACEEE Summer Study in Energy Efficiency in Buildings, Pacific Grove, CA, August 12-17, 2018
Funder
European Regional Development Fund (ERDF)
Available from: 2018-09-14 Created: 2018-09-14 Last updated: 2019-06-14Bibliographically approved
Nair, G., Azizi, S. & Olofsson, T. (2017). A management perspective on energy efficient renovations in Swedish multi-family buildings. Energy Procedia, 132, 994-999
Open this publication in new window or tab >>A management perspective on energy efficient renovations in Swedish multi-family buildings
2017 (English)In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 132, p. 994-999Article in journal (Refereed) Published
Abstract [en]

Sweden has around 2.5 million dwellings in multi-family buildings, which constitute about 55% of the total dwelling units. The multi-family building ownership in Sweden can be categorized into municipal, private and co-operative ownership. Approximately 40% of apartments in multi-family buildings belong to municipal housing companies, while the rest is equally shared by private companies and co-operative housing associations. These organizations have different priorities, limitations and concerns related to energy renovations. Accordingly, in this sector the decisions to invest in energy efficiency improvement depends to a large extent on the type of ownership.

In this study we analyzed the perspectives of different types of building ownership on energy efficient renovation. The analysis is based on detailed interviews of 4 senior managers representing the multi-family buildings under different ownership categories. Along with this we also interviewed a municipality energy adviser. All the interviewees are based in in North Sweden. The drivers to facilitate the rate of adoption of energy renovation in such buildings are discussed.

Place, publisher, year, edition, pages
Elsevier, 2017
Keywords
Energy renovations, barriers, multi-family buildings, decisions, Sweden
National Category
Energy Systems
Identifiers
urn:nbn:se:umu:diva-133613 (URN)10.1016/j.egypro.2017.09.699 (DOI)000426435500166 ()2-s2.0-85033386266 (Scopus ID)
Available from: 2017-04-14 Created: 2017-04-14 Last updated: 2018-06-11Bibliographically approved
Organisations

Search in DiVA

Show all publications