"15% more to cover losses" "When a simple direct connect is nearly 100% lossless, and so easy to plug in, why would I want to be so wasteful?" "BMW&Daimler developing 3-Hour Wireless Inductive EVSE " This wireless system is 75% efficient, so it has 25% wasted power.. And plugs with wire have "Copper Losses" of about 3 to 5% . To editorialize, IMHO the manufacturers are looking for some distinctive marketing advantages. Wireless is about as useful as a can of instant spare tire, because it makes the trunk larger, and costs less, than a tire and rim, but on a lonely highway, far from town, I have been glad, to see the spare, in the trunk along with a jack and lug wrench! I feel all drivers should know: how to use a clutch, change a tire, parallel park, perform minor auto repairs, and back up a trailer. But, I am experienced, and many are not! The life skills are being abandoned, and replaced by computer games... I am climbing down off the soap box now..
Dennis Lee Miles (EVprofessor) *Founder: **EV Tech. Institute Inc.** (www.evti.org <http://www.evti.org>) * *E-Mail:* *evprofes...@evprofessor.com* <evprofes...@evprofessor.com> *Phone #* *(863) 944-9913* in Central Florida (Office hours: 12:00 Noon to 10:00 pm, New York time) On Mon, Jul 21, 2014 at 12:08 AM, Peri Hartman via EV <ev@lists.evdl.org> wrote: > Me, too. However, consumers might not care (unfortunately). In other > words, you might pay 15% more to cover losses but compared to what? > Consumers will be happy to just park and have the charge happen > automatically. Unless energy costs are really high, they will get ignored. > > I'm with you, though. When a simple direct connect is nearly 100% > lossless, and so easy to plug in, why would I want to be so wasteful? > > > Peri > > ------ Original Message ------ > From: "Al via EV" <ev@lists.evdl.org> > To: "Peter C. Thompson" <pe...@cruzware.com>; "Electric Vehicle > Discussion List" <ev@lists.evdl.org> > Sent: 20-Jul-14 8:55:06 PM > Subject: Re: [EVDL] EVLN: BMW&Daimler developing 3-Hour Wireless Inductive > EVSE for i3 EV > > My problem with the whole wireless charging "dog and pony show" is the >> lost energy and the seemingly impossible efficiency claims. >> For instance, even if the high frequency transformer had NO air gap, >> there would still be a limit to its efficiency. >> How efficient is a 60hz transformer? Is a higher frequency transformer >> any more efficient? >> >> Al >> _______________________________________________ >> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >> http://lists.evdl.org/listinfo.cgi/ev-evdl.org >> For EV drag racing discussion, please use 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 > For EV drag racing discussion, please use 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/20140721/d4099315/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
