Change search
ReferencesLink to record
Permanent link

Direct link
Motivators for adoption of photovoltaic systems at grid parity: A case study from Southern Germany
KTH, School of Industrial Engineering and Management (ITM), Industrial Economics and Management (Dept.). Universidad Politecnica de Madrid, Spain.ORCID iD: 0000-0002-5617-1912
KTH, School of Industrial Engineering and Management (ITM), Industrial Economics and Management (Dept.), Sustainability and Industrial Dynamics.ORCID iD: 0000-0001-5912-441X
2015 (English)In: Renewable & sustainable energy reviews, ISSN 1364-0321, E-ISSN 1879-0690, Vol. 43, 1090-1098 p.Article in journal (Refereed) Published
Abstract [en]

In some countries, photovoltaic (PV) technology is at a stage of development at which it can compete with conventional electricity sources in terms of electricity generation costs, i.e., grid parity. A case in point is Germany, where the PV market has reached a mature stage, the policy support has scaled down and the diffusion rate of PV systems has declined. This development raises a fundamental question: what are the motives to adopt PV systems at grid parity? The point of departure for the relevant literature has been on the impact of policy support, adopters and, recently, local solar companies. However, less attention has been paid to the motivators for adoption at grid parity. This paper presents an in-depth analysis of the diffusion of PV systems, explaining the impact of policy measures, adopters and system suppliers. Anchored in an extensive and exploratory case study in Germany, we provide a context-specific explanation to the motivations to adopt PV systems at grid parity.

Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 43, 1090-1098 p.
Keyword [en]
Deployment, Grid parity, Innovation, Micro generation, Policy, Solar
National Category
Social Sciences Interdisciplinary
URN: urn:nbn:se:kth:diva-157789DOI: 10.1016/j.rser.2014.11.077ISI: 000348880600085ScopusID: 2-s2.0-84919667492OAI: diva2:772043

QC 20150310

Available from: 2014-12-16 Created: 2014-12-16 Last updated: 2015-12-10Bibliographically approved
In thesis
1. Diffusion of dynamic innovations: A case study of residential solar PV systems
Open this publication in new window or tab >>Diffusion of dynamic innovations: A case study of residential solar PV systems
2015 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

In the literature on diffusion of innovations, it is widely known that the characteristics and socio-environmental settings of adopters do evolve in space and time. What about innovations themselves? During the diffusion process, don’t some innovations continuously alter in space and time? If so, how does the dynamic character of an innovation influence the diffusion process? In previous research, it has been often assumed that innovations do not continuously alter or get modified when diffusing from a source to potential adopters. This assumption may mean that the innovation is invariant as it diffuses in time and space—i.e., the innovation does not have a continuously dynamic character. Is it always the case in practice?   

A single form of an innovation is not always necessarily compatible with the preferences, limitations, and residential settings of adopters. The innovation might appear in different forms when it diffuses in space and time, i.e., it is “dynamic”. This PhD thesis aims to explore how dynamic innovations diffuse in space and time—a relatively understudied topic in research. In doing so, it distinguishes between the diffusion of dynamic innovations and other kinds of innovations. Anchored on the case of diffusion of residential solar photovoltaic (PV) systems, this thesis is composed of a cover essay and six appended papers. The first two appended papers are systematic literature reviews, aiming at understanding the state of the art of the theoretical and contextual research domains. The third paper is based on a case study in southern Germany and explores the diffusion of a dynamic innovation at adopter level. The fourth paper is empirically focused on a local firm’s business model, which is assumed to be a key to understanding the mechanism behind the diffusion of dynamic innovations. The fifth paper is based on lead market hypothesis and tries to explore the diffusion of innovations at the regional level. The sixth paper studies a semi-hypothetical case and offers an innovative method to forecast the diffusion of innovations in general.

The contribution of this PhD thesis lies in three research dimensions: context, method, and theory. Firstly, the thesis takes the existing theories (e.g., diffusion of innovations theory and lead market hypothesis) and methods (e.g., case study) and applies them in different contexts of the diffusion of residential solar PV systems: the individual, sub-national, and national level. Secondly, it proposes a new research method, namely the finite element method for forecasting the diffusion of innovations, based on an existing theory (e.g., wave-like diffusion of innovations in time and space) and context (e.g., solar PV systems). Last but not least, the cover essay of this thesis takes the findings of the appended papers and employs an extension of theory of diffusion of innovations. In doing so, it includes the role of the dynamic characteristic of innovations that do alter in time and space during the diffusion process.

Overall, the findings of this thesis indicate that the diffusion of dynamic innovations is different in nature, and continuous efforts of change agents are critical for enhancing the diffusion of such innovations. Change agents are especially important to help potential adopters to find out and develop the form of innovation that best fits their needs, limits, and preferences, which are heterogeneous in space and time. 

Place, publisher, year, edition, pages
Sweden: KTH Royal Institute of Technology, 2015. xiii, 71 p.
TRITA-IEO, ISSN 1100-7982 ; 2015:09
Dynamic innovations, diffusion, residential solar, photovoltaics, time, space
National Category
Economics and Business Sociology
Research subject
Industrial Engineering and Management
urn:nbn:se:kth:diva-177020 (URN)978-91-7595-763-0 (ISBN)
Public defence
2015-12-11, E2, Lindstedtsvägen 3, KTH, Stockholm, 14:00 (English)
European Doctorate in Industrial Management

QC 20151117

Available from: 2015-11-17 Created: 2015-11-13 Last updated: 2016-02-15Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Karakaya, EmrahNuur, Cali
By organisation
Industrial Economics and Management (Dept.)Sustainability and Industrial Dynamics
In the same journal
Renewable & sustainable energy reviews
Social Sciences Interdisciplinary

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 838 hits
ReferencesLink to record
Permanent link

Direct link