I drove Calgary to Vegas (and return) over the X-mas break with Model X 100D (max. range ~460 km).
On the way south, supercharged in Fort MacLeod and topped up at Peavey Mart in Lethbridge (free,~16 kW), then carried on to Great Falls Spring Hill Suites destination charger overnight. Roughly 30 km of energy to spare. South of Great Falls (after destination charging), the distance to Butte is around 250 km, however, there is a substantial elevation gain. We pulled into Butte supercharger with approx. 60 km remaining (ie. it used up an additional 150 km of energy to cover the distance).
If you're on the way to Vegas, do not skip charging at Beaver and at St. George. There is a mountain range approaching Vegas and the speed limit is 80 miles/hour. Might as well charge and ensure you get to Vegas with energy at hand. The supercharger stations in Vegas may be busy with 30 minute wait time. If you charge in Vegas at the Linq supercharger, keep your stay below an hour, otherwise you will have to pay $9 for parking as you exit to area.
On the return trip north with heavy headwind and -10oC, after Great Falls destination charging overnight, I barely made it to Lethbridge Peavey Mart. Had to slow down to 60 km/h on the highway for the final 15 km approaching Lethbridge and was driving along the streets with 0 km of energy remaining.... but we made it.
We also completed a Calgary to Vegas trip in September. At that time, we travelled through Fort MacLeod (supercharged) and headed west to Fernie and then south to avoid destination charging in Great Falls. We did not have a CHAdeMo adapter, so our next best option was the Town's EV charger at 16 kW. We topped up (took us around 3 hours to top up) and then headed south, crossing into US at Roosville crossing (which is open 24 hours) and arriving at Missoula supercharger with ~25 km remaining, and then to Butte and south. On our return trip, we stopped at Great Falls to destination charge. Continuing north, we drafted behind a tractor-trailer and made it Lethbridge with approx. 30 km remaining.
PlugShare indicates a Flo charging station at Milk River (80 km south of Lethbridge). The picture looks like near completion except for surfacing of the area (I assume with gravel). I am not certain if this has been completed yet.
PlugShare also show a charging station in the Town of Raymond, but will need to detour 15 km from Highway 4 (along Highway 52), approx. 35 km south of Lethbridge. It appears to be a 7 kW charger (so approx. 30 km/h), but may be a good location to charge on days with heavy headwind.
I hope that helps.
On the way south, supercharged in Fort MacLeod and topped up at Peavey Mart in Lethbridge (free,~16 kW), then carried on to Great Falls Spring Hill Suites destination charger overnight. Roughly 30 km of energy to spare. South of Great Falls (after destination charging), the distance to Butte is around 250 km, however, there is a substantial elevation gain. We pulled into Butte supercharger with approx. 60 km remaining (ie. it used up an additional 150 km of energy to cover the distance).
If you're on the way to Vegas, do not skip charging at Beaver and at St. George. There is a mountain range approaching Vegas and the speed limit is 80 miles/hour. Might as well charge and ensure you get to Vegas with energy at hand. The supercharger stations in Vegas may be busy with 30 minute wait time. If you charge in Vegas at the Linq supercharger, keep your stay below an hour, otherwise you will have to pay $9 for parking as you exit to area.
On the return trip north with heavy headwind and -10oC, after Great Falls destination charging overnight, I barely made it to Lethbridge Peavey Mart. Had to slow down to 60 km/h on the highway for the final 15 km approaching Lethbridge and was driving along the streets with 0 km of energy remaining.... but we made it.
We also completed a Calgary to Vegas trip in September. At that time, we travelled through Fort MacLeod (supercharged) and headed west to Fernie and then south to avoid destination charging in Great Falls. We did not have a CHAdeMo adapter, so our next best option was the Town's EV charger at 16 kW. We topped up (took us around 3 hours to top up) and then headed south, crossing into US at Roosville crossing (which is open 24 hours) and arriving at Missoula supercharger with ~25 km remaining, and then to Butte and south. On our return trip, we stopped at Great Falls to destination charge. Continuing north, we drafted behind a tractor-trailer and made it Lethbridge with approx. 30 km remaining.
PlugShare indicates a Flo charging station at Milk River (80 km south of Lethbridge). The picture looks like near completion except for surfacing of the area (I assume with gravel). I am not certain if this has been completed yet.
PlugShare also show a charging station in the Town of Raymond, but will need to detour 15 km from Highway 4 (along Highway 52), approx. 35 km south of Lethbridge. It appears to be a 7 kW charger (so approx. 30 km/h), but may be a good location to charge on days with heavy headwind.
I hope that helps.