At least since the 1980 study on the energiewende by Krause et al. (Energie-Wende: Wachstum und Wohlstand ohne Erdöl und Uran. Frankfurt am Main: S. Fischer), renewable energies have been considered a viable alternative to conventional fossil fuels, and renewable energy technologies were seen...

Japan has few indigenous energy supplies, and imports the bulk of its energy, so it is hardly surprising that, following the oil crises of the mid 1970's, it has taken renewable energy seriously. Moreover, increasing constrains on energy and the environment, especially the global environmental...