I'm not a scientist or anything and have been casually following the developments of this company but it kind of blows my mind to see where this is headed. First they release a fully-powered electrical vehicle; then they have supercharging stations put in all around America so that you can basically drive across to anywhere and they charge you $0, forever, all powered by solar energy; now they've basically created 'Powerwalls' which seem will power your home and eventually take you off other sources of energy and solely rely on their systems...which are all solar powered. Oh, and all their design patents are released for free for everyone to use.
It seems like some crazy futuristic plan that might actually come to fruition in the near future. Or am I wrong and has the technology been overestimated?