text: Let’s Build a Global Power Grid
  With a little DC wizardry and a lot of gas,
  we can swap power across continents
  By Clark W. Gellings
  Posted 28 Jul 2015
  
  http://spectrum.ieee.org/energy/the-smarter-grid/lets-build-a-global-power-grid/
  
  http://www.terrawatts.com/
  ;-)