That swap site was designed to arbitrage a loophole of California tax credits for EV's. http://www.latimes.com/business/autos/la-fi-hy-tesla-battery-swap-harri

That swap site was designed to arbitrage a loophole of California tax credits for EV's. http://www.latimes.com/business/autos/la-fi-hy-tesla-battery-swap-harris-ranch-20150310-story.html http://www.latimes.com/business/autos/la-fi-hy-tesla-battery... Basically, if a battery swap facility exists and has done it on at least one car, then all cars in the fleet capable of this battery swap can enjoy the extra tax credits, even though said facility is not open for actual use and has no plans to employ swapping on the other vehicles.