An automobile network that's also owning their "refueling" network concerns me with the usual lock in concerns. What'd append when other brands want to offer the same service? A multitude of recharge posts all accross the land space each under their car brand flag? Figuring that there's only tesla and ford on this city, instead of the Nissan charging station that I need?

This particular solution seems very specific to Tesla (or even only model S), is there any standard or independent initiative for battery-exchange stations?