Peri Hartman <
[email protected]> wrote:
> That would work in low demand areas. But along a freeway where people are
> queing up, you might as well use a high wattage source directly. There
> comes a point where the rate in (from the power lines) equals the rate out
> throughout most of the day. At that point, any advantages of charging a
> "dump-charge" pack are lost.
>
> -----Original Message-----
> From:
[email protected] [mailto:
[email protected]] On
> Behalf
> Of Dennis Miles
> Sent: 14 December, 2010 9:12 AM
> To: Electric Vehicle Discussion List
> Subject: Re: [EVDL] NPR story on electric vehicle charging program.
>
> Perhaps we can get a comment from Steve Clunn at Greenshed.com but IIRC he
> fast-charged his mower from his pickup pack then recharged the pickup from
> a
> homeowners outlet while he cut their lawn with the mower, and trailered the
> mower to the next lawn service client and repeated the action.
>
> Why not use a similar setup at a highway FAST recharging station, several
> cycle packs are charged at the one or two hour rate and are connected to
> the
> EV pack to recharge the EV in 15 minutes or less. the load to the grid is
> leveled at a substantially lowered and the EVs receive a Quick as possible
> re-charge. As business grows in the coming years add more batteries to the
> Re-charging station's cycle packs.
>
> On Tue, Dec 14, 2010 at 11:52 AM, Cor van de Water <
[email protected]
> >wrote:
>
> > It has been said before - high power needs high voltage.
> > At a typical 11kV from the medium voltage grid (which runs on overhead
> > wires, maybe even through your backyard) the 600kW is only 55A unless
> > it is 3-phase then it is even lower.
> > It also has been said that there will be few high power fast-charge
> > "convenience stores" as most everyone will opt for slow and cheaper
> > overnight charging.
> > But if you want to make a long trip and have a few bucks extra to
> > spend for the fast charge, then that convenience may be viable (I
> > mean, it may have a positive business case as money-making enterprise,
> > to have fast-charging stations at regular places along highways in the
> > same way that we have gas stations now though I believe there will not
> > be a need for so many charging stations as there are gas outlets
> > today.
> > Time will tell.
> >
> > Cor van de Water
> > Director HW & Systems Architecture Group Proxim Wireless Corporation
> > http://www.proxim.com
> > Email:
[email protected] Private: http://www.cvandewater.com
> > Skype: cor_van_de_water IM:
[email protected]
> > Tel: +1 408 383 7626 VoIP: +31 20 3987567 FWD# 25925
> > Tel: +91 (040)23117400 x203 XoIP: +31877841130
> >
> > -----Original Message-----
> > From:
[email protected] [mailto:
[email protected]] On
> > Behalf Of Peri Hartman
> > Sent: Tuesday, December 14, 2010 1:51 AM
> > To: 'Electric Vehicle Discussion List'
> > Subject: Re: [EVDL] NPR story on electric vehicle charging program.
> >
> > Great progress, but a couple things aren't clear.
> > 1. does $8B cover just the cost of the charging stations, or also
> > improvements to the infrastructure?
> > 2. what level of charger?
> >
> > Let me expound on the latter. I think for most people, 100 mile range
> > with 20 minute charging will not be popular. Maybe at 200 miles with
> > 5 minute charging. But to do that, let's take a simple example:
> >
> > - Say you have a car that gets 250wh/m (possible, but probably
> > optimistic at freeway speeds)
> > - The goal is 200 miles on a charge.
> > - Not counting losses, that's 50kwh
> > - To deliver that in 5 minutes requires a 600kw service.
> > - At 440v, that would be 1364a
> > Wow! I'm not sure Agassi is providing for that within an $8B estimate.
> >
> > Peri
> >
> >
> > -----Original Message-----
> > From:
[email protected] [mailto:
[email protected]] On
> > Behalf Of Dennis Miles
> > Sent: 13 December, 2010 9:03 AM
> > To: Electric Vehicle Discussion List
> > Subject: Re: [EVDL] NPR story on electric vehicle charging program.
> >
> > Lawrence,
> > This is about $8 billion to build and stock battery swapping
> > stations!
> > The speaker is Shai Agassi CEO of Better Place. He also mentioned the
> > "Project Get Ready" program and another program however those are
> > mostly for home charging stations, not highway recharging locations.
> > Agassi also mentioned A-B-C which he defined as Automobiles,
> > Batteries, and Charging. It immediately came to my mind that I learned
> > the entire alphabet not just the first three letters, and we called
> > them the ABC'S Therefore I would add the letter S to his comment as
> > "S"ervice is always left out but is definitely necessary!
> > Regards,
> > *Dennis Lee Miles* (Director) *E.V.T.I. inc*.
> > *www.E-V-T-I-Inc.COM <http://www.e-v-t-i-inc.com/> *(Adviser)*
> > EVTI-EVA Education
> > Chapter*
> > Phone (813) ID4 - E V T I or (813) 434 - 3884
> > ----------------------------------------------------------------------
> > --
> > ----
> > ---------------
> > On Mon, Dec 13, 2010 at 11:23 AM, Lawrence Rhodes <
> >
[email protected]> wrote:
> >
> > >
> > > http://www.npr.org/player/v2/mediaPlayer.html?action=1&t=1&islist=fa
> > > ls
> > > e&id=132020612&m=132020598
> > >
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> >
> >
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>
>
> --
> Regards,
> *Dennis Lee Miles* (Director) *E.V.T.I. inc*.
> *www.E-V-T-I-Inc.COM <http://www.e-v-t-i-inc.com/> *(Adviser)*
> EVTI-EVAEducation Chapter
> *
> ++++++++++++++++++++++++++++++++
> The "Stone Age" didn't end because they ran out of Stones;
> It ended because they started using their Brains !
> +++++++++++++++++++++++++++++++++++++++++++++
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--
Regards,
*Dennis Lee Miles* (Director) *E.V.T.I. inc*.
*www.E-V-T-I-Inc.COM <http://www.e-v-t-i-inc.com/> *(Adviser)*
EVTI-EVAEducation Chapter
*
++++++++++++++++++++++++++++++++
The "Stone Age" didn't end because they ran out of Stones;
It ended because they started using their Brains !
+++++++++++++++++++++++++++++++++++++++++++++
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