It is actually 14.4 kWh from 110V/12A. Most people have 15A circuits and shouldn't draw more than 12A.
When I first got my Tesla, I was charging on 110V and having some trouble keeping up. My normal commute is 50 miles round trip, plus side trips. The Tesla has about 250-300 wh per mile. With L2 charging, there is no problem, even after fully depleting the pack. It fully charged overnight. I do agree that smaller, lighter cars and better efficiency would be helpful. However, I'm not sure whether a cD less than 0.22 will be enough like a car to be practical and accepted. Looking through the lists of cars below, most cars with a drag coefficient less than 0.25 are concept cars. The Tesla Model S is actually pretty good at 0.24. Its biggest problem is its size and weight. http://en.m.wikipedia.org/wiki/Automobile_drag_coefficient On May 13, 2015 1:08:06 PM MDT, Ben Goren via EV <ev@lists.evdl.org> wrote: >On May 13, 2015, at 11:51 AM, Jamie K via EV <ev@lists.evdl.org> wrote: > >> Ben, on the subject of L1 chargers being good enough for nearly >everybody and L2 being overkill, I would ask "based on what data"? > >Sorry...I had in mind overnight home charging, with the assumption that >the 20 kWh you get from 12 hours @ 110V / 15A is going to be good >enough for as many miles as nearly everybody is going to need in a day, >especially given the types of efficiency figures we're headed towards >and that Lawrence was advocating. At 250 Wh / mile, that's 80 miles. >Even at 500 Wh / mile, that's still 40 miles, the range that Chevy >targeted for the Volt as "almost good enough for 100% electric for >almost everybody." > >Yes, there will be exceptions...but how many people regularly drive >more than 40 miles in a day, and, of those, how many are going to want >to do so in an EV that's only doing 500 Wh / mile? > >Even more important...how many people are going to want to spend lots >of extra money on an at-home fast charger if overnight L1 charging >always leaves them with 80 miles more in the morning than they had at >the end of the day before? > >b& >_______________________________________________ >UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >http://lists.evdl.org/listinfo.cgi/ev-evdl.org >For EV drag racing discussion, please use NEDRA >(http://groups.yahoo.com/group/NEDRA) _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
