you are forgetting to think about an important concept. Cars are parked 96% of
the time. Autopilot is now being extensively data crowd sourced. In 10 years,
Why buy a car? call one with your phone. they will be moving 80% of the time
and can recharge autonomously. Parking spaces will become less valuable because
you wont need one, because fewer will even want one, to park, What? why own a
car? just summon oneEV's will become ubiquitous. Where in that giant parking
lot is my vehicle? right in front of me, because I summoned it.giant parking
lots will also go away
From: Peri Hartman via EV <[email protected]>
To: Electric Vehicle Discussion List <[email protected]>
Sent: Monday, October 19, 2015 12:57 PM
Subject: Re: [EVDL] EVLN: Buying An Electric Car: Why Charging Rate, DC
Quick-Charging Matter
Don't forget that there is a huge percentage, 30% to 50% depending on
how you measure, who don't have consistent access to dedicated off
street charging. During the early adopter stage, this doesn't matter.
For the next wave of EV owners it will. People who can't charge at home
will need to either charge at a destination - work, shopping - or while
they wait at some sort of refuling station. Charge time will matter - a
lot.
Peri
------ Original Message ------
From: "Robert Bruninga via EV" <[email protected]>
To: "Ben Goren" <[email protected]>; "Electric Vehicle Discussion
List" <[email protected]>; "brucedp5" <[email protected]>
Sent: 19-Oct-15 9:43:53 AM
Subject: Re: [EVDL] EVLN: Buying An Electric Car: Why Charging Rate, DC
Quick-Charging Matter
>What they actually don't understand is that EV's are refuled while
>parked
>and not-in-use in the ultimate of convenience.
>
>Whereas they are so used to gas cars that must be refuled somewhere
>else,
>while they ARE-USING the car. A big inconvenience.
>
>-----Original Message-----
>From: EV [mailto:[email protected]] On Behalf Of Ben Goren via
>EV
>Sent: Monday, October 19, 2015 12:40 PM
>To: brucedp5; Electric Vehicle Discussion List
>Subject: Re: [EVDL] EVLN: Buying An Electric Car: Why Charging Rate, DC
>Quick-Charging Matter
>
>On Oct 19, 2015, at 3:24 AM, brucedp5 via EV <[email protected]> wrote:
>
>> In broad strokes, if you're confident that you can charge your car at
>> home every night--or at work every day--then recharge rate may not be
>> quite so important.
>
>They're handwaving away the most important point.
>
>People new to EVs are paranoid about the time it takes to recharge.
>People
>who've lived with an EV for a few weeks wonder what all the fuss is
>about.
>My parents went through this...Dad did a lot of searching for a cheap
>220
>charger for their new-to-them Leaf. Now, while they wouldn't turn one
>down
>if you offered them one for free, they have no interest in spending
>money
>on one.
>
>I think a lot of people unfamiliar with EVs get hung up on the time to
>charge the battery from empty, when the important metric is the time to
>charge the battery after a day's typical usage.
>
>If you figure 3 miles per kWh for a typical EV, you'll recharge at
>about
>10 MPH from a standard 110 circuit. Doesn't sound like much...but
>that's
>80 miles after 8 hours, and most of us are either asleep that long or,
>at
>least, spend that much time asleep plus showering and eating and the
>like.
>In practice, most people would have no trouble plugging in for 10 or 12
>hours a day at home, giving 100 - 120 miles.
>
>And, save for road trips, how many people even put 80 miles on the road
>in
>a given day? And on the rare days when that happens...how often does it
>happen day after day?
>
>Let's say you've got a 200-mile range EV, as is promised for the next
>generation of cars. Start the day with a full charge. Drive 100 miles
>that
>single day and end the day with 100 miles. Plug in only for 8 hours,
>start
>the next day with "only" 180 miles. You could keep that pattern up for
>over a week before you'd start to have legitimate reason for range
>anxiety. Give the car a couple days of 12-hour charges on your
>(presumed)
>weekend when you're only putting a few dozen miles per day on the car,
>and
>you're all caught back up again. And I think it's safe to suggest that
>what I just described is a rather extreme situation, even in America.
>Not
>unheard of, but very unusual.
>
>Fast charging is nice to have, sure. But it becomes _less_ important
>with
>bigger batteries, not more -- and we're emphatically headed to bigger
>batteries. But the only time you actually _need_ fast charging --
>assuming
>overnight access to a 110 outlet is as ubiquitous as it typically is --
>is
>for road trips or other scenarios where you're spending almost as much
>time in the car as you do in bed. And most people are renting cars for
>road trips these days anyway....
>
>Cheers,
>
>b&
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>
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