As much as we typically agree, here I have to disagree. (sorry!) The link you posted had to do with someone taking electricity without asking.
I've found places to plug in everywhere, and asked each time. Hotels typically have outdoor plugs for their maintenance crews. Same with all establishments, for that matter. RV parks are everywhere and supply higher power options. I've never been at a loss for finding places to plug in. Ever.
That's because of your convenient location, Bonnie. Try to find somewhere to plug in between Erie and Jamestopwn, for example.
If you mentally make the commitment to always always have a buffer BEFORE it's an emergency, you will have a myriad of charging choices and won't be stuck anywhere.
This is simply false; saying it betrays your "California thinking".
Even on my upstate NY - Michigan road trip, for which I left *extensive* buffers (I assumed 450 Wh/mi and left a 20 mile buffer), I had to stop at very specific locations; because of my extensively redundant planning, there was *a* place to charge in each case, but not more. Between London and Sarnia there was a whole lot of nothing. Those farmhouses might let you plug in.... they might not.... they probably don't have outdoor plugs, anyway. Once I got to Michigan, *the power was out due to ice storms* in half the blocks.
Now, I was getting much worse mileage than 450 -- apparently I was getting the worst recorded mileage of anyone on this forum over a long distance (We believe this is due to snow accumulating in the wheel wells and creating massive friction.)
My charging spots were planned less than 70 miles apart, and it was very iffy.
Because I plan very very conservatively, I had one place to plug in. A "myriad"? No way. I never got down to 0, but I did get down to the car bleeping at me and telling me to plug in soon, on pretty much every leg of the trip, and I had no -- zero -- backup charging options on some of those trip legs. (Or to be more accurate, the alternate options had no power or had otherwise failed; my original plan had at least two charging locations in each city, and each 70 miles apart.)
And this is actually a pretty civilized region. I was never out of cellphone service, and I was never worried about freezing to death in a ditch. (I ended up lengthening my route on the way back by going through Detroit just to avoid this long run of empty.)
Imagine the situtation of the owner in Saskatchewan.
I agree that if you plan conservatively enough you will be OK (I was OK, although it was very nervewracking). But if you follow the standard recommendations here? You have a decent chance of ending up stuck with a drained batttery and no easy way to charge it, due to weather. Of course, Bonnie, you live in sunny California and so don't have a clue about weather.
Right now, you CANNOT reliably do Buffalo-Cleveland in one go in a model S in the winter. (In the summer, there are RV parks and it's not a problem.)
If you have located two reliable sources of power in Erie and can stay there overnight, then you're OK.
There's a reason I've been calling for an Erie Supercharger, as I notice two other people did in this thread alone -- Tesla Motors Inc. has of course ignored this completely, because that's the sort of company they are (one who doesn't listen and doesn't pay attention).
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Roadster owners will never be within driving distance of a supercharger. And this just hasn't been an issue for us.
Because, apart from a couple of truly hardcore members on this forum (tip of the hat to DougG), Roadster owners are simply not going to be driving their cars in the winter in the snowbelt. It's a convertible, for goodness sakes!