Neat article with some good diagrams. Sorry if duplicate, I searched before posting. http://www.greencarreports.com/news/1093947_what-it-takes-to-build-a-tesla-supercharger-dc-fast-charging-site -m - - - Updated - - - Sorry I posted this a second time by accident. Can't seem to delete it thought. Mod, please delete this one! Thanks. -m