Based on photos from some of the other TCH sites, including conduit labels, V3 can be identified by the layout of concrete pads and the conduit feeding them.
In the photo above, we see two large cement pads to the left, each for one V3 charging unit (the cabinet). The conduits for those pads will be labeled 1A, 1B, 1C and spare (1D) for the first cabinet and 2A, 2B, 2C and spare (2D) for the second cabinet. Moving down the row to the right, we see two smaller concrete cabs with conduit labels suggesting battery storage. All the way to the right is a rectangular pad that will house the switchgear equipment.
From my understanding, each charging cabinet can support up to four 250 kW charging pedestals. On TCH, only three per cabinet will be populated, leaving room for a future expansion of two more pedestals (1D and 2D).
Note that the 1000 kVA transformer will be the limiting factor for these TCH locations if they ever get full of vehicles. The battery storage will be able to absorb some of the peak, but a busy holiday travel day could result in the site throttling to 1MW (plus instant solar production, if available) across all stalls.
I’m looking forward to seeing equipment photos of the Las Vegas V3 site. It should have 6 charging cabinets for its 24 stalls. My wild ass guess is that it’ll have a 3000 kVA transformer.