Energy at the end of the world: an Orkney Islands saga

The Orkney Islands off the northern coast of Scotland, and nearer to the Arctic Circle than London, are a center for energy technology innovation.    Laura Watts gives an account of innovations from marine energy to hydrogen fuel networks, micro wind turnbines and a 10 year old smart grid.  The Orkneys are creating their own low-carbon future producing more renewable energy than they use.