The cities of Graz in Austria and Freiburg in Germany have been perceived as ecological model cities since the late 1980s.This is shown by various international awards, press coverage and many visitors from other municipal administrations. Both cities have been well known for their attempts to bring about transitions towards more sustainable and low-carbon energy systems. The comparison of Graz and Freiburg over a period of two decades enables us to study how differing contexts, actor constellations and historic developments shape the transformation of energy systems towards greater sustainability. It is argued that understanding the role of cities for energy transitions requires a detailed examination of the coupled dynamics of socio-technical interactions across the levels of niches, regimes and landscapes on the one hand, and multilevel systems of governance on the other. At these intersections new, although spatially confined, socio-technical constellations of sustainable energy provision may emerge and be stabilised. Nevertheless, empirical evidence shows that it is misleading to conclude that true socio-technical transitions are taking place in these cities, even though a number of foundations for long-term change processes have been laid.
BetsillM. M.BulkeleyH. (2004) Transnational networks and global environmental governance: the cities for climate protection program, International Studies Quarterly, 48, pp. 471–493.
2.
BrandR. (2005) Urban infrastructures and sustainable social practices, Journal of Urban Technology, 12, pp. 1–25.
3.
BulkeleyH. (2006) Urban sustainability: learning from best practice?, Environment and Planning A, 38, pp. 1029–1044.
4.
BulkeleyH.BetsillM. (2005) Rethinking sustainable cities: multilevel governance and the ‘urban’ politics of climate change, Environmental Politics, 14, pp. 42–63.
CoenenL.TrufferB. (2012) Places and spaces of sustainability transitions: geographical contributions to an emerging research and policy field, European Planning Studies, 20, pp. 367–374.
7.
CoenenL.BenneworthP.TrufferB. (2012) Toward a spatial perspective on sustainability transitions, Research Policy, 41, pp. 968–979.
8.
CoenenL.RavenR.VerbongG. (2010) Local niche experimentation in energy transitions: a theoretical and empirical exploration of proximity advantages and disadvantages, Technology in Society, 32, pp. 295–302.
9.
CorburnJ. (2009) Cities, climate change and urban heat island mitigation: localising global environmental science, Urban Studies, 46, pp. 413–427.
10.
CoutardO.RutherfordJ. (2010) Energy transition and city-region planning: understanding the spatial politics of systemic change, Technology Analysis & Strategic Management, 22, pp. 711–727.
11.
GeelsF. W. (2002) Technological transitions as evolutionary reconfiguration processes: a multi-level perspective and a case-study, Research Policy, 31, pp. 1257–1274.
12.
GeelsF. W. (2004) From sectoral systems of innovation to socio-technical systems: insights about dynamics and change from sociology and institutional theory, Research Policy, 33, pp. 897–920.
13.
GeelsF. W.SchotJ. (2007) Typology of sociotechnical transition pathways, Research Policy, 36, pp. 399–417.
14.
GrahamS.MarvinS. (2001) Splintering Urbanism: Networked Infrastructures, Technological Mobilities and the Urban Condition. London: Routledge.
15.
GustavssonE.ElanderI.LundmarkM. (2009) Multilevel governance, networking cities, and the geography of climate-change mitigation: two Swedish examples, Environment and Planning C, 27, pp. 59–74.
16.
HodsonM.MarvinS. (2009) Cities mediating technological transitions: understanding visions, intermediation and consequences, Technology Analysis & Strategic Management, 21, pp. 515–534.
17.
HodsonM.MarvinS. (2011) Can cities shape socio-technical transitions and how would we know if they were?, in: BulkeleyH.Castán BrotoV.HodsonM.MarvinS. (Eds) Cities and Low Carbon Transitions, pp. 54–70. London: Routledge.
18.
HodsonM.MarvinS. (2012) Mediating low-carbon urban transitions? Forms of organization, knowledge and action, European Planning Studies, 20, pp. 421–439.
19.
IPCC (Intergovernmental Panel on Climate Change) (2007) Climate change 2007: synthesis report. Contribution of Working Groups I, II and III to the fourth assessment report of the IPCC. IPCC, Geneva.
20.
KeirsteadJ.SchulzN. B. (2010) London and beyond: taking a closer look at urban energy policy, Energy Policy, 38, pp. 4870–4879.
21.
LangeJ.UfheilM.TannerC. (2010) Ausbau der Kraft-Wärme-Kopplung in der Stadt Freiburg. Umweltschutzamt der Stadt Freiburg, Freiburg.
22.
LindsethG. (2004) The cities for climate protection campaign (CCPC) and the framing of local climate policy, Local Environment, 9, pp. 325–336.
23.
MaassenA. (2012) Heterogeneity of lock-in and the role of strategic technological interventions in urban infrastructural transformations, European Planning Studies, 20, pp. 441–460.
24.
MeadowcroftJ. (2009) What about the politics? Sustainable development, transition management, and long term energy transitions, Policy Sciences, 42, pp. 323–340.
25.
RavenR. P. J. M. (2007) Niche accumulation and hybridisation strategies in transition processes towards a sustainable energy system: an assessment of differences and pitfalls, Energy Policy, 35, pp. 2390–2400.
26.
RavenR. P. J. M.GeelsF. W. (2010) Socio-cognitive evolution in niche development: comparative analysis of biogas development in Denmark and the Netherlands (1973–2004), Technovation, 30, pp. 87–99.
27.
RavenR. P. J. M.SchotJ.BerkhoutF. (2012) Space and scale in socio-technical transitions, Environmental Innovation and Societal Transitions, 4, pp. 63–78.
28.
RavenR. P. J. M.HeiskanenE.LovioR.HodsonM.BrohmannB. (2008) The contribution of local experiments and negotiation processes to field-level learning in emerging (niche)technologies: meta-analysis of 27 new energy projects in Europe, Bulletin of Science Technology & Society, 28, pp. 464–477.
29.
RipA. (2012) The context of innovation journeys, Creativity and Innovation Management, 21, pp. 158–170.
30.
RipA.KempR. (1998) Technological change, in: RaynerS.MaloneE. L. (Eds) Human Choice and Climate Change: Resources and Technology, pp. 327–399. Columbus, OH: Batelle Press.
31.
RutlandT.AylettA. (2008) The work of policy: actor networks, governmentality, and local action on climate change in Portland, Oregon, Environment and Planning D, 26, pp. 627–646.
32.
SchotJ.GeelsF. W. (2008) Strategic niche management and sustainable innovation journeys: theory, findings, research agenda, and policy, Technology Analysis & Strategic Management, 20, pp. 537–554.
33.
SmithA. (2007a) Emerging in between: the multi-level governance of renewable energy in the English regions, Energy Policy, 35, pp. 6266–6280.
34.
SmithA. (2007b) Translating sustainabilities between green niches and socio-technical regimes, Technology Analysis & Strategic Management, 19, pp. 427–450.
35.
SmithA.RavenR. (2012) What is protective space? Reconsidering niches in transitions to sustainability, Research Policy, 41, pp. 1025–1036.
36.
SpäthP. (2005) District heating and passive houses: interfering strategies towards sustainable energy systems, in: ECEEE 2005 Summer Study proceedings, ECEEE, Stockholm.
37.
SpäthP. (2012) Understanding the social dynamics of energy regions: the importance of discourse analysis, Sustainability, 4, pp. 1256–1273.
38.
SpäthP.RohracherH. (2010) ‘Energy regions’: the transformative power of regional discourses on socio-technical futures, Research Policy, 39, pp. 449–458.
39.
SpäthP.RohracherH. (2011) The ‘eco-cities’ Freiburg and Graz: the social dynamics of pioneering urban energy and climate governance, in: BulkeleyH.Castán BrotoV.HodsonM.MarvinS. (Eds) Cities and Low Carbon Transitions, pp. 88–106. London: Routledge.
40.
SpäthP.RohracherH. (2012) Local demonstrations for global transitions: dynamics across governance levels fostering socio-technical regime change towards sustainability, European Planning Studies, 20, pp. 461–479.
41.
TrufferB.CoenenL. (2012) Environmental innovation and sustainability transitions in regional studies, Regional Studies, 46, pp. 1–21.
42.
VerbongG. P. J.ChristiaensW.RavenR. P. J. M.BalkemaA. (2010) Strategic niche management in an unstable regime: biomass gasification in India, Environmental Science & Policy, 13, pp. 272–281.
