Hello Jim, I read where one of the Fossil Fuel company CEOs was thinking that natural gas will peak before the end of the century (as if I will be around). How are the utilities planning to incorporate renewables, EVs into their mix after the peaks in fossil fuel production? I've heard and read some things but it seems like they are keeping their plans close and I wonder if part of it is that changes in technological develop and user preferences are sort of a set of wild cards?
On Fri, Dec 14, 2018 at 12:15 PM jim--- via EV <ev@lists.evdl.org> wrote: > On the last points, you are largely wrong. To most of the people on this > list, delivering a half megawatt to a really fast charger seems like a > large amount of power. To your electric utility, that is a trivial amount > of power. That's only a few amps on a 12KV distribution circuit. The > electric utilities are not at all worried about the ability to handle large > amounts of electric vehicles - particularly at night when loads are > normally lowest. > > BTW, my Dad was a power plant operator for his career and I spent 24 years > at the 2nd largest utility in California, so I have a little understanding > of the electric system. > > Jim Walls > > > > -----Original Message----- > From: "Peter Eckhoff via EV" <ev@lists.evdl.org> > Sent: Friday, December 14, 2018 08:35 > To: "Electric Vehicle Discussion List" <ev@lists.evdl.org> > Cc: "Peter Eckhoff" <evd...@gmail.com> > Subject: Re: [EVDL] EVLN: Toyota dealers say there is no sale$ demand.us > forEVs > > If current batteries have around 215 whr/kg and Amprius's new battery which > maybe rated as much as 435 whr/kg (if in the same volume), a Model 3 with a > 300 mile range could conceivably have a 600 mile range and a Bolt could > have a 480 mile range. At 60 miles per hour, the max range occurs at about > 10 hours and 8 hours of driving, respectively. Basically, a full day of > driving with no pit stops for a meal and/or personal weight adjustment. > > But if you want to press on for another 10 or 8 hours, I've timed a family > pit stop at about 30 minutes and add to that the time it would take to do > an ICE refuel at a semi-busy set of interstate pumps, you have a minimum of > 40 minutes that could be used to recharge an EV. Let's make it an hour. > > For an hour full recharge, a Model 3 and Bolt would need 150 and 120 > kwhrs. At 480 volts, that's 312 amp-hours; a bit much. But spread that > over a good night's sleep, shower, breakfast, repacking, checkout, etc. for > a total of 14 hours, that's 22 amp-hours which is not unreasonable or 10 > hours at 32 amps. > > A trip from Omaha to Rapid City, SD is 524 miles and taking a side trip to > Fossil Bed State Park is completely doable with no range anxiety; maybe a > slight top off for a Bolt at Wall or one of the other small towns along the > way. > > The biggest hurdle will be the generation, storage, and distribution of the > energy to recharging points. > > Has anyone read what the utilities are planning on doing? > > > > > > > > On Fri, Dec 14, 2018 at 9:08 AM Collin Kidder via EV <ev@lists.evdl.org> > wrote: > > > On Thu, Dec 13, 2018 at 7:43 PM Lee Hart via EV <ev@lists.evdl.org> > wrote: > > > > > > If fast charging is so vital, how come the market isn't flooded with > > > fast chargers for cellphones, laptops, power tools, and all our other > > > battery-operated toys? > > > > ?!?!?!?! Umm.... IT IS. The market most certainly is packed full with > > fast chargers for cellphones. They all advertise how their new 9v wall > > wart and cable will charge your phone up like 80% in 45 minutes or > > some such thing. Companies like Samsung have specifically built fast > > charging into their premium phones. Likewise on power tools. As you > > might expect, people doing construction burn through batteries on > > portable tools. So, those chargers tend to be quite fast also - they > > even have thermal management but only in the form of "we won't charge > > this battery until it's not hot anymore." Laptops don't tend to have > > super fast chargers because you can usually use them plugged in anyway > > so the battery ends up being more like a built-in UPS. > > > > So, yeah, fast charging most certainly exists where there is a use > > case for it. I can see the draw of fast charging for electric cars > > too. It's true that 90% of the time you don't need it and can charge > > slowly at home. But, as EVs become more prevalent there will be cases > > where people have nothing else. In that case if you have to drive 700 > > miles somewhere then you need some fast chargers. I think the biggest > > draw for fast chargers are that they fill the gap we currently have > > where you can recharge quickly with gasoline (only maybe 4 minutes) > > but you can't do that in an EV. So, people are used to filling up > > quickly and want to retain that. This is mostly psychological but you > > can't discount that. Psychological issues are very real and saying > > "just charge at home" doesn't cut it. People aren't looking for your > > alternatives, they're looking for ways to do what they want to do. > > There are many people who won't get an EV until they feel like they > > can charge it back up anywhere and quickly. Until then they've got > > their gas guzzler that can do that. > > _______________________________________________ > > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > > Please discuss EV drag racing at NEDRA ( > > http://groups.yahoo.com/group/NEDRA) > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20181214/cdb89b08/attachment.html > > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Please discuss EV drag racing at 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 > Please discuss EV drag racing at NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > -------------- next part -------------- An HTML attachment was scrubbed... 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