Common courtesy and respect for your fellow man should be the arbiter.
Well... Then we're screwed. Unfortunately, this is one of those things that we are likely going to have accept for the time being. It is part of choosing electric and using the superchargers. It isn't the negative publicity or energy direction that tesla wants to to focus on right now.
People le have the right to charge to 100%, and they aren't always going to want to move their car immediately. I'm sure some probably want the extra insurance miles, and some probably figure it's one less watt to charge at home since they are already there. How do you know the ones going to San Diego weren't going to grandma and grandpas first, then aunt Jackie's house, then a costco, then home.... Maybe it wasn't a direct trip.
I think the only thing tesla can do is have a check in kiosk (maybe the car can check itself in with some "on deck" parking spots, but I doubt that the parking lot owners will all be willing for that). Then when a car hits 90%, a message to the owner would be sent saying "your car is at 90%, and there are 2 people waiting." Then at 100% a message that says "your car is at 100%, and 2 people are waiting. Please be courteous and allow them to charge."
And I'd expect several years of tesla catching up to much more pressing issues before any solution is implemented. Right now only 3 chargers have this issue regularly, and they are all being supplemented with more local charging..
gilroy got Fremont and will have Manteca. Hawthorne is getting SJC, L.A. And Oxnard. Folsom got vacaville and is getting Roseville and at least one more.
None of the above solutions are even helpful if they forgot their phone, or it died, or they just simply turn off networking...
humans are humans and will be humans... Expect no more, and be gratefully thankful when you get better. Sorry.
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I've owned my Model S for a year and driven 17K miles, but have yet to use a Supercharger. Is it still the case that the odd-numbered stalls are more powerful than the even-numbered ones? Wasn't that the case when the SC first appeared?
Afaik, it has never been that way. There are paired spots, but the first one in use gets a higher rate until the car can't take it anymore... The other one gets whatever is left.
the paired slots are usually in his format: 1a and 1 b... Sometimes they are laid out 1a 1b 2a 2b 3a 3b.... And sometimes they are laid out 1a 2a 3a 1b 2b 3b.... And without looking closely you'll never notice the difference and likely park in a spot that is shared with one already in use. Most people don't even know they are shared. Tesla has done nothing to properly educate people... They are likely too busy, but also anything they do to educate charging philosophy or teach courtesy will also come off as complexity.... They don't want to sell complexity.