Forecasts, Scenarios, Visions, Backcasts And Roadmaps To The Hydrogen Economy: A Review Of The Hydro
(Miguel Tejada)
A great number of papers have been published that compare the quality or impact of academic journals. This article seeks to broaden the debate on journal evaluation by showing how top journals in various academic business disciplines, as defined by the Financial Times list of top research outlets, relate to one other. Using large-scale sociometric analyses on about 140,000 citations we found that the integration of the citation network has increased over time. Moreover, the information flow from Finance and Economics to Management has become stronger and, within Management, a polarization between information generators and users has taken place. We also found that most business academics published in distinct and mostly non-overlapping disciplines. The only exceptions were Finance and Economics as well as Strategic Management and OB/HR. Surprisingly, we also found that the general business journals, which could be assumed to be cited by most other journals across the management disciplines, are not central to the entire field. For instance, they are not complementary at all to Finance and Economics. Instead, Operations Research (OR) and Management Information Systems journals occupy the central space on the perceptual map. This indicates that these disciplines (and OR in particular) are complementary with Management and with Finance and Economics.Scenarios, roadmaps and similar foresight methods are used to cope with uncertainty in areas with long planning horizons, such as energy policy, and research into the future of hydrogen energy is no exception. Such studies can play an important role in the development of shared visions of the future: creating powerful expectations of the potential of emerging technologies and mobilising resources necessary for their realisation. This paper reviews the hydrogen futures literature, using a six-fold typology to map the state of the art of scenario construction. The paper then explores the expectations embodied in the literature, through the 'answers' it provides to questions about the future of hydrogen. What are the drivers, barriers and challenges facing the development of a hydrogen economy? What are the key technological building blocks required? In what kinds of futures does hydrogen become important? What does a hydrogen economy look like, how and when does it evolve, and what does it achieve? The literature describes a diverse range of possible futures, from decentralised systems based upon small-scale renewables, through to centralised systems reliant on nuclear energy or carbon-sequestration. There is a broad consensus that the hydrogen economy emerges only slowly, if at all, under 'Business as Usual' scenarios. Rapid transitions to hydrogen occur only under conditions of strong governmental support combined with, or as a result of, major 'discontinuities' such as shifts in society's environmental values, 'game changing' technological breakthroughs, or rapid increases in the oil price or speed and intensity of climate change
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