The Electric Car
in [Design]
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From: Martin Griffith on 28 Jul 2007 18:48 On Sat, 28 Jul 2007 15:26:55 -0700, in sci.electronics.design gyansorova(a)gmail.com wrote: >On Jul 29, 10:06 am, Martin Griffith <mart_in_medina(a)ya___.es> wrote: >> On Sat, 28 Jul 2007 21:59:51 +0100, in sci.electronics.design Eeyore >> >> <rabbitsfriendsandrelati...(a)hotmail.com> wrote: >> >> >gyansor...(a)gmail.com wrote: >> >> >> Can we now re-charge in say 10 mins? >> >> >No. >> >> >This is another reason why hybrids make more sense. Pure EVs have too many >> >limitations. >> >> >Graham >> >> If they could recharge in 10 mins, the US power grid would burn out >> >> Martin > >What about these? > >http://altairnano.com/markets_amps.html > That is not the point, work out how much energy it takes to move say 1 ton of metal a 100Km, with all the normal losses, like traffic lights, and going around bends in the road. If 20 cars are recharging in say a small city, say 5Km^2, at any one time, what are the total power requirements, and who has the capacity to provide that power? { fun.... http://www.youtube.com/watch?v=XV_Dh2zvwLI } The ancient US electrical power distribution system would barf, and inwardly digest Martin
From: Martin Griffith on 28 Jul 2007 18:53 On Sat, 28 Jul 2007 23:40:23 +0100, in sci.electronics.design Eeyore <rabbitsfriendsandrelations(a)hotmail.com> wrote: > > >gyansorova(a)gmail.com wrote: > >> Martin Griffith wrote: >> >Eeyore wrote: >> > >gyansor...(a)gmail.com wrote: >> > >> > >> Can we now re-charge in say 10 mins? >> > >> > >No. >> > >> > >This is another reason why hybrids make more sense. Pure EVs have too many >> > >limitations. >> > >> > >> > If they could recharge in 10 mins, the US power grid would burn out >> >> >> What about these? >> >> http://altairnano.com/markets_amps.html > >Shockingly expensive. $75,000 per vehicle just for batteries. > >http://www.greencarcongress.com/2006/07/altair_nanotech.html > >Graham > so about 150� then? Martin
From: Eeyore on 28 Jul 2007 19:09 Martin Griffith wrote: > gyansorova(a)gmail.com wrote: > >Martin Griffith wrote: > >> Eeyore wrote: > >> >gyansor...(a)gmail.com wrote: > >> > >> >> Can we now re-charge in say 10 mins? > >> > >> >No. > >> > >> >This is another reason why hybrids make more sense. Pure EVs have too many > >> >limitations. > >> > >> If they could recharge in 10 mins, the US power grid would burn out > > > >What about these? > > > >http://altairnano.com/markets_amps.html > > > That is not the point, work out how much energy it takes to move say 1 > ton of metal a 100Km, with all the normal losses, like traffic lights, > and going around bends in the road. Around 30kWh. > If 20 cars are recharging in say a small city, say 5Km^2, at any one > time, what are the total power requirements, and who has the capacity > to provide that power? > > { fun.... http://www.youtube.com/watch?v=XV_Dh2zvwLI } > > The ancient US electrical power distribution system would barf, and > inwardly digest If you could recharge 30kWh in 10 mins, each recharging car is going to require 180kW. 20 of those at any one time is 3.6MW. Graham
From: J.A. Legris on 28 Jul 2007 19:27 On Jul 28, 4:59 pm, Eeyore <rabbitsfriendsandrelati...(a)hotmail.com> wrote: > gyansor...(a)gmail.com wrote: > > Can we now re-charge in say 10 mins? > > No. > > This is another reason why hybrids make more sense. Pure EVs have too many > limitations. > > Graham Energy wise, hybrids are only slightly better that the norm, and when we include recycling all those spent batteries, lousy low-temperaure performance and the ultimate source of the energy (coal and oil) it's a boondoggle. The solution is either significantly lighter vehicles (essentially electric bicycles with fairings), or horses. But when you think about it, they're unsustainable too. The only real solution is cutting the population of humans down by a factor of 10, and the only practical and "humane" way to do that is to release a virus that effectively sterilizes a whole generation, without prejudice. Bioterrorists, get to work! The alternative is involuntary extinction, pure and simple. Al Gore's been soft-peddling. -- Joe
From: gyansorova on 28 Jul 2007 19:34
On Jul 29, 11:09 am, Eeyore <rabbitsfriendsandrelati...(a)hotmail.com> wrote: > Martin Griffith wrote: > > gyansor...(a)gmail.com wrote: > > >Martin Griffith wrote: > > >> Eeyore wrote: > > >> >gyansor...(a)gmail.com wrote: > > > >> >> Can we now re-charge in say 10 mins? > > > >> >No. > > > >> >This is another reason why hybrids make more sense. Pure EVs have too many > > >> >limitations. > > > >> If they could recharge in 10 mins, the US power grid would burn out > > > >What about these? > > > >http://altairnano.com/markets_amps.html > > > That is not the point, work out how much energy it takes to move say 1 > > ton of metal a 100Km, with all the normal losses, like traffic lights, > > and going around bends in the road. > > Around 30kWh. > > > If 20 cars are recharging in say a small city, say 5Km^2, at any one > > time, what are the total power requirements, and who has the capacity > > to provide that power? > > > { fun....http://www.youtube.com/watch?v=XV_Dh2zvwLI} > > > The ancient US electrical power distribution system would barf, and > > inwardly digest > > If you could recharge 30kWh in 10 mins, each recharging car is going to require > 180kW. 20 of those at any one time is 3.6MW. > > Graham Don't give me your problems! Give me your solutions!! What's the answer when the oil runs out? |