[Note: This is an update to this thread: Model X has single 72A charger ... I made this a separate topic because it's a distinct change from the other thread. Mods can modify the other thread's title and merge if required...] If you are preparing to install charging options for Model X, this update may change what you install (in terms of circuit size, etc.) I have been considering how do to a build-out for a second car at maximum charging speeds, and so I've been exchanging e-mails with folks within Tesla on recommendations I can make around home electrical infrastructure for a 2 Tesla household (and I have the PoCo scheduled to be out here tomorrow to pull my meter so I can make the necessary changes). I received word today (from what I consider a very reliable source) that the 72A charging capability we've heard of earlier in the process is not the case, and that Model X will ship with a single charger capable of charging only at 12 kW, or 48A single phase. This means that if you're installing a Wall Connector for Model X only, you can install it on a 80A circuit, for the 64A charging setting. It allows you to use a smaller gauge wire (#4, although the difference isn't much) and reduces the impact on load calculations for your home panel. Older HPWC's have the 60A circuit option that can be selected, newer ones do not. For European Model X's, I assume this means 3ph x 16A maximum (11 kW) as well but that wasn't confirmed to me. I will add another update if I get it. Note also that this doesn't impact Supercharging, which bypasses the onboard charger to deliver a fast charge when you're on the road. As I understand it, the updates were sent to the support teams (inside sales and delivery) today. My perspective: I understand moving to a single charger - the complexity of a dual-charger setup was causing some problems. What I don't understand is the 48A limitation - why not build as high as possible to the Wall Connector's capability? I'm wondering (speculation here) if this is one of those supplier/parts problems, and if they're going to use Model S chargers (or at least same technology from same supplier) as a result. Perhaps this is going to be the Model X's "A-pack", where initial cars ship with 48A and they revise it later for higher current. These last points are purely my own thought - no information to back it up other than the circumstances.