The source I worked from, http://www.teslamotors.com/supercharger http://www.teslamotors.com/supercharger , contains only this about solar power… And, at many

The source I worked from, http://www.teslamotors.com/supercharger http://www.teslamotors.com/supercharger , contains only this about solar power… And, at many locations, solar cells mounted on the weather canopy charge your Model S with solar energy. I'm sure SolarCity projects will be supplying more power than Teslas use, but not from these charging stations. (Unless virtually no one uses the stations, which is probably not the plan. There'd be no reason to install 4 parallel charging stations if you were charging less than one car a day. Another possibility is that they build car ports that cover many parking spaces in a lot to support each charging bay. That's not what the picture shows, but it would work.) I can't find an original source for the idea that the stations will produce more power than they consume, but it appears, attributed to Musk, in both Engadget and Huffington post. Most other articles on the event don't have it. It seems to have come from an oral presentation. The good news is, if a Tesla S goes about 2 miles on 1 kWhr of power and if an average person drives about 10k miles per year, that is only 14kWhr/day. Each bay would supply the typical power requirements of two Tesla S cars. Update: The press release is out now, http://finance.yahoo.com/news/tesla-motors-launches-revolutionary-supercharger-032000226.html http://finance.yahoo.com/news/tesla-motors-launches-revoluti... It clearly says the stations will make more power than they consume. So either they are huge compared to the picture, or Tesla S drivers aren't much for road tripping.