I'd say it's about 10x faster. So isn't that one order of magnitude? Unless you are base 2 or something. :) Except for big city dwellers, for most single car households, I don't think it works yet. But we could easily get by with one electric car. One thing I like about electric cars and hybrids is that they are so much quieter. We live on a hill, and there is such a difference when cars are going up it.It's better than four hours (or 12) but it's several orders of magnitude (yes, I am using it correctly) worse than hitting a gas station.
I wasn't just calculating gas-up time, which would be about 5 minutes max for 150 miles (3-6 gallons at 2-3 gpm) but time to get to the station, etc. I figure that you're going to have 25x to 50x more gas than electric charging stations, even in a dense urban environment, so you'll have to fill up sooner rather than later, drive farther, etc. Don't forget, if there are three cars in front of you at a single pump you're waiting <10 minutes max, but if you're at a 45 minute "supercharge" station it's almost two hours. I didn't even try to run a "napkin" calculation in my head. So, yeah, several orders of magnitude I betcha. -XC PS - Wait until they put "gas tax" on the electricity you use. Remember, that's how roads are (mostly) paid for. A lot of the delta will disappear. As bio-diesel owners have found out the hard way.
So, I just ran some numbers in my head.... I drove SFO to IAD with a friend a few years ago - it's pretty mush a straight 2,800 mile shot. We did it in 40 hours, give or take, over 2.5 days. If you did that in a Tesla you'd make a dozen (minimum @ 240 miles range) pit stops of 45 minutes each. Forgetting everything else, that's 9 hours. Or a 25% time penalty. Assuming you could make through WY, etc.... -XC