Just as the stories of King Arthur and his tragic story of Camelot, Guinevere and the Knights of the Round Table continue to capture our imaginations, so do the possibilities of new electricity generation technologies totally transforming our lives.

Up until recently, the promises of large-scale changes to the electricity systems had been relegated to the pages of science fiction stories or speculative articles in science journals such as a Scientific American or New Scientist. But now, thanks to a perfect storm of new technologies driven by government subsidies…