Well, it's kind of a necessary thing to make electric vehicles into a true replacement for gas. For 99% of what we do with cars, needing to recharge for 4-8 hours every 300 miles or so, really isn't a problem... you drive to work, drive home, plug it back in and tomorrow it's ready to go again. But when you want to go on a 400 mile trip, you just can't do it - you're going to have to stop somewhere in the middle for half a day to recharge. Since there are limits on the number of hours a truck driver can drive in a day, I imagine that it would be possible to make it work with a big enough battery pack, and recharging stations in the right places... for things like police cars and taxis, you're not typically going far from where they're based, so just switching cars would be a realistic option. Granted, not a cheap option, but the difference in the cost of fuel could very well make it cheaper than burning gas.
But if you can make a car that can be recharged practically as fast as filling a gas tank, you don't have to worry about any of that - it's just a matter of building the recharging stations, and they can be used the same as gas/diesel vehicles are used now. I think the idea of building a luxery supercar, is that you can show that it works, and you don't have to worry about how much it costs. There's nothing practical about a supercar anyway, so the practicality of it really doesn't matter. On Tue, Mar 5, 2019 at 9:56 AM Ken Hohhof <[email protected]> wrote: > Seems like fast charging would be more of an issue for trucks, police > cars, taxis, etc. that can’t be off the road charging for 4-8 hours because > they’re not making money when they’re charging. > > > > If someone is really concerned about recharging their luxury supercar in 4 > minutes because they’re driving it cross-country or something, they are > going to have a problem finding the special charging stations. If instead > they’re just Matthew McConaughey wanting to take their Lincoln out on a > spur-of-the-minute drive in a commercial, I doubt he needs to recharge it > in 4 minutes (or that there’s a special recharging station on his route). > > > > > > *From:* AF <[email protected]> *On Behalf Of *Adam Moffett > *Sent:* Tuesday, March 5, 2019 9:20 AM > *To:* [email protected] > *Subject:* Re: [AFMUG] OT New electric car > > > > ....then again the circuit will open once the ultracap melts whatever is > shorting it. Maybe every object is a fuse in that case. > Just talking out of my rear, cuz I don't really know. > > On 3/5/2019 10:17 AM, Adam Moffett wrote: > > Ultracaps sound great because you can put charge in them super fast. > You can also discharge them super fast. I don't know what a short on a > 100kwh equivalent capacitor would look like. Probably looks like a bomb. > > On 3/5/2019 10:11 AM, Mark Radabaugh wrote: > > Perhaps some type of supercap instead of a battery? That’s about the > only way I could see truly fast charging time since you are not using a > chemical reaction, just storing electrons. > > > > > https://cleantechnica.com/2018/02/27/supercapacitor-research-promises-10-minute-charging-times-200-mile-range/ > > > > Safety should be interesting. That’s a hell of a lot of energy density > with very little to rate limit converting it back to heat - talk about the > potential for a really big boom. > > > > Mark > > > > On Mar 5, 2019, at 9:49 AM, Forrest Christian (List Account) < > [email protected]> wrote: > > > > A while back I read that these new stations would have local storage of > some sort. That would limit the short term grid impact. > > > > On Mon, Mar 4, 2019, 5:15 PM Bill Prince <[email protected]> wrote: > > They announced it today as the Supercharger V3. Capable of up to 350KW, > but would "typically" run in the 200KW range (give or take). To take > advantage of the higher charge rates, the vehicle battery packs will need > to be enhanced to allow them to take that amount of power. > > > -- > > bp > > part15sbs{at}gmail{dot}com > > > > > > On Mon, Mar 4, 2019 at 4:01 PM Sterling Jacobson <[email protected]> > wrote: > > Again, I think they meant about 5 hours to charge, not just under four > minutes, lol! > > > > *From:* AF <[email protected]> *On Behalf Of *Bill Prince > *Sent:* Monday, March 4, 2019 4:43 PM > *To:* AnimalFarm Microwave Users Group <[email protected]> > *Subject:* Re: [AFMUG] OT New electric car > > > > I thought I read that Tesla announced a new "super" super charger that > could do 350KW. > > > -- > > bp > > part15sbs{at}gmail{dot}com > > > > > > On Mon, Mar 4, 2019 at 2:28 PM Nate Burke <[email protected]> wrote: > > Isn't that the kind of electric service you have running to your house? > Didn't I see the latest Tesla chargers are 200-250kw. > > On 3/4/2019 4:20 PM, [email protected] wrote: > > Piech Mark Zero > > Claims 311 mile range. At 3.11 miles per kW that would be a 100 kWh > battery. OK, within the realm of posibilities. > > > > 4:40 minutes to 80% battery capacity. > > > > So 280 seconds or .077 hours to dump 83 kWh into the battery. > > 83/.077=1067 kW > > > > So you have to have 1 Megawatt power source to charge? > > 2223 amps of 480 service. > > > > I am doubting this. > > > > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > > > > > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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