content: The article says almost nothing of the science behind it or how well it works, nor does it link to anything else about the procedure. It only says that it involves using electric currents to move minerals to the site, which is basically the opposite of how batteries work (you utilize minerals to cause a current (electrons) to move between them, which uses less energy than this, for a very simplistic explanation). If it's truly supposed to be available in three years I'm sure we'll hear a lot more about it soon.