Introduction : visions and futures in the study of low-carbon energy systems

Technological utopianism : small modular reactors and the physics community
Symbolic convergence : hydrogen fuel cells and the engineering community
Technological frames : the interpretive flexibility of shale gas in Eastern Europe
Discursive coalitions : contesting clean coal in South Africa
Sociotechnical imaginaries : smart meters and the public in the United Kingdom
Expectations : electric mobility and experts in the Nordic region

Conclusion : dimensions, dichotomies and frameworks for energy futures.