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Diffusion of innovative domestic heating systems and multi-storey wood-framed buildings in Sweden
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
2007 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The diffusion of innovations that promote sustainable use of forest resources and energy efficiency is important for reducing greenhouse gas emission and dependency on oil. In this thesis the ‘systems of innovation’ (SI)

The SI analyses showed that several sources of path dependency, resulting from the establishment and growth of the concrete-based construction system over the past 100 years, hinder the expansion of a wood-based multi-storey

The adopter-centric approach included household questionnaire surveys: one covering the whole of Sweden in 2004 involving 1500 randomly selected homeowners with any type of heating system, and another in the city of Östersund in

The expansion of district heating networks in the detached home sector, particularly those homes with resistance heaters, is often considered difficult. However, results showed that, in Östersund, the government investment

Place, publisher, year, edition, pages
Sundsvall: Mid sweden Univ , 2007.
Series
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 33
National Category
Other Environmental Engineering
Identifiers
URN: urn:nbn:se:miun:diva-48Local ID: 5226ISBN: 9789185317660 (print)OAI: oai:DiVA.org:miun-48DiVA, id: diva2:2025
Public defence
2007-10-30, Q221, Q, Akademigatan 1, Östersund, 13:00 (English)
Opponent
Supervisors
Available from: 2008-09-24 Created: 2008-09-24 Last updated: 2015-10-29Bibliographically approved
List of papers
1. Multi-storey timber buildings – breaking industry path dependency
Open this publication in new window or tab >>Multi-storey timber buildings – breaking industry path dependency
2008 (English)In: Building Research & Information, ISSN 0961-3218, E-ISSN 1466-4321, Vol. 36, no 6, p. 638-648Article in journal (Refereed) Published
Abstract [en]

The Swedish legal restriction on construction of multi-storey timber buildings was imposed in 1888 and repealed in 1994. The subsequent emergence of such a timber building system in Sweden is analysed in the context of the existing concrete-based construction system. The characteristics of the construction industry and its path dependency over the past century hamper the development of a timber building system. However, government policies and funding, the wood industry’s interest in an enhanced market for value-added wood products, and involvement of the wood research community has helped develop such a construction system. Investments in knowledge creation, incentives for the entry of new firms, and increased prefabrication may facilitate a transition from this formative phase to a growth phase in the diffusion of timber buildings.

 

Keywords
Innovation system, lock-in, multi-storey buildings, path dependency, technology systems, timber frame
National Category
Other Environmental Engineering
Identifiers
urn:nbn:se:miun:diva-396 (URN)10.1080/09613210802386123 (DOI)000260325400008 ()2-s2.0-54949115874 (Scopus ID)
Note
VR-EconomicsAvailable from: 2008-11-30 Created: 2008-09-24 Last updated: 2017-12-13Bibliographically approved
2. Bioenergy innovations: the case of wood pellet systems in Sweden
Open this publication in new window or tab >>Bioenergy innovations: the case of wood pellet systems in Sweden
2007 (English)In: Technology Analysis & Strategic Management, ISSN 0953-7325, E-ISSN 1465-3990, Vol. 19, no 1, p. 99-125Article in journal (Refereed) Published
Abstract [en]

In the context of global warming and dependence on fossil fuels, modern bioenergy systems have evolved with a large global potential. Small-scale pellet heating systems for space heating of detached houses is one application of bioenergy technology. In Sweden, such systems have advantages over oil-fired and electric boiler systems in terms of the total lifecycle heating cost to consumers. However, the diffusion of this technology into the market has hitherto been rather slow. By combining an extended configuration cycle model with a dynamic multi-level perspective on system innovation, we have studied the factors involved in the diffusion of such systems in Sweden. The results indicate that investment cost may not be the major issue, but that other factors such as annual fuel cost of heating, lack of information, dissatisfaction of early adopters, and technology lock-in are among the most important factors.

Keywords
Diffusion, pellet heating, Sweden
National Category
Other Environmental Engineering
Identifiers
urn:nbn:se:miun:diva-397 (URN)10.1080/09537320601065423 (DOI)000243368000008 ()2-s2.0-33845732228 (Scopus ID)2988 (Local ID)2988 (Archive number)2988 (OAI)
Available from: 2008-11-25 Created: 2008-09-24 Last updated: 2017-12-13Bibliographically approved
3. Diffusion of innovative heating systems in detached homes in Sweden
Open this publication in new window or tab >>Diffusion of innovative heating systems in detached homes in Sweden
2008 (English)In: International Journal of Energy Technology and Policy, ISSN 1472-8923, Vol. 6, no 4, p. 343-367Article in journal (Refereed) Published
Abstract [en]

The Swedish homeowners' perception of Innovative Heating Systems (IHSs) was studied through a questionnaire survey. Most of the respondents were satisfied with their existing heating systems and were not planning to install a new one. They considered economic factors and functional reliability the most important factors in the choice of a heating system. Hence, economic policy instruments appear to be efficient in inducing homeowners to install an IHS. Installers were the most important source of information. The perceived advantages of pellet boilers were fewer than those of heat pumps and therefore, they were diffusing slower than heat pumps in Sweden.

Keywords
detached homes, innovative heating systems, heat pumps, pellet boilers, questionnaire survey, Sweden, economic policy, functional reliability
National Category
Other Environmental Engineering
Identifiers
urn:nbn:se:miun:diva-398 (URN)10.1504/IJETP.2008.019954 (DOI)2-s2.0-50449095244 (Scopus ID)
Available from: 2008-12-02 Created: 2008-09-24 Last updated: 2013-02-11Bibliographically approved
4. Innovative approaches to domestic heating: homeowners’ perceptions and factors influencing their choice of heating system
Open this publication in new window or tab >>Innovative approaches to domestic heating: homeowners’ perceptions and factors influencing their choice of heating system
2008 (English)In: International Journal of Consumer Studies, ISSN 1470-6423, E-ISSN 1470-6431, Vol. 32, no 1, p. 75-87Article in journal (Refereed) Published
Abstract [en]

The paper focuses on Swedish homeowners' perceptions of innovative heating systems, and those factors that influence their decision to adopt a new heating system. The systems studied were: district heating, heat pumps and pellet boilers. Results of two household surveys - one covering the whole of Sweden in autumn 2004 and the other in the city of Östersund in summer 2005 - revealed that approximately 80% of the survey respondents, particularly those with resistance heaters, did not intend to install an innovative heating system. Economic aspects, functional reliability and indoor air quality were found to be the most important factors influencing respondents' choice of a heating system. Survey respondents thought that a bedrock heat pump system has a number of advantages with respect to the annual cost of heating, security of fuel supply, environmental benignity, market value of the home and low greenhouse gas emission. A district heating system has advantages regarding functional reliability, system automation and time required to obtain information. A pellet boiler system has one main advantage: investment cost. Compared with homeowners having other types of heating systems, those with resistance heaters accorded more importance to investment cost due to the high cost of installing a water-based system for heat distribution within the home.

Keywords
domestic heating systems, homeowner, perceptions, Sweden
National Category
Other Environmental Engineering
Identifiers
urn:nbn:se:miun:diva-399 (URN)10.1111/j.1470-6431.2007.00638.x (DOI)207984500010 ()
Available from: 2008-11-25 Created: 2008-09-24 Last updated: 2017-12-13Bibliographically approved
5. Influencing Swedish homeowners to adopt district heating system
Open this publication in new window or tab >>Influencing Swedish homeowners to adopt district heating system
2009 (English)In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 86, no 2, p. 144-154Article in journal (Refereed) Published
Abstract [en]

Improved energy efficiency and greenhouse gas mitigation could be achieved by replacing resistance heaters with district heating system. In 2005, only about 8% of the Swedish detached houses had district heating system. The expansion of such systems largely depends on homeowners’ adoption decisions. And, to motivate homeowners to adopt district heating, it is essential to understand their decision-making process. In this context, in June 2005 we carried out a questionnaire survey of about 700 homeowners who lived in the city of Östersund in houses with resistance heaters (baseline survey). About 84% of the respondents did not intend to install a new heating system. Since then these homeowners were influenced by (a) an investment subsidy by the Swedish government to replace resistance heaters with district heating, a brine/water-based heat pump, or a biomass-based heating system and (b) a marketing campaign by the municipality-owned district heating company. This paper analyses how these two measures influenced about 78% of the homeowners to adopt the district heating system. For this purpose we carried out a follow-up survey of the same homeowners in December 2006 (resurvey). Results showed that the investment subsidy and the marketing campaign created a need among the homeowners to adopt a new heating system. The marketing campaign was successful in motivating them to adopt the district heating system. The marketing strategy by the district heating company corresponds to the results obtained in the baseline survey.

Keywords
Homeowner; Perception; District heating; Marketing campaign; Investment subsidy
National Category
Other Environmental Engineering
Identifiers
urn:nbn:se:miun:diva-400 (URN)10.1016/j.apenergy.2008.03.011 (DOI)000260269000004 ()2-s2.0-52149098553 (Scopus ID)
Note

VR-Economics

Available from: 2008-11-25 Created: 2008-09-24 Last updated: 2017-10-09Bibliographically approved

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