I agree, but we were talking about China, so I presumed that it wasn't replacing a car.
Is that an unlikely assumption? Sent from my iPhone > On Aug 23, 2015, at 11:08 AM, "Peri Hartman" <[email protected]> wrote: > > Another significant factor is what an e-bike replaces. > > If it merely 100% replaces a pedal-only bike, then clearly it is dirtier. > > However if it replaces a pedal-only but also replaces 50% of car trips, it is > incredibly cleaner. Even if the car is an EV. > > Peri > > ------ Original Message ------ > From: "Michael Ross via EV" <[email protected]> > To: "Mark Abramowitz" <[email protected]>; "Electric Vehicle Discussion > List" <[email protected]> > Sent: 23-Aug-15 10:41:45 AM > Subject: Re: [EVDL] Bu's e-wheely bad idea> weaving-recklessly the wrongway > HT delivery > >> Mark, >> >> That is kind of naive, or not resulting from careful thought - >> "cleanliness" of any electric use depends on the power generating source. >> >> I have 6kW of solar at home - pretty clean. If I charged the light EV pack >> with a gas generator that would be pretty stinky. Grid power around here >> is primarily NG from modern plants, so... you can argue about clean there >> many ways. I could probably cobble together a wood gas generator/generator >> that would stink, but be carbon neutral. Then there are all the other >> options. >> >> Light EVs are, if nothing, cheap for low income folks, they help the >> sedentary wealthy get some exercise on short trips - just like the Vermont >> people noted in recent posts. >> >> Light EVs don't waste as much energy because they generally don't go very >> fast - anything over 12mph has an air drag penalty and 80mph is very >> inefficient in comparison whatever the source or vehicle. Air drag is the >> predominant energy wasting pathway. >> >> Light EVs make a lot more sense in terms of material efficiency as they >> don't have to resort to titanium, and aluminum to be lightweight (easily >> made from recovered scarp and recycled parts). If you want to do a dust to >> dust comparison. >> >> A human is incredibly efficient if you can get sufficient distance and trip >> time. A few meals of beans and greens will get you a couple hundred miles >> if you are a hearty and practiced rider. I suspect that is how the vast >> majority of the millions of EV bike owners are doing it. Someone recently >> quoted there are 126 million light EVs, bikes scooters, and so on. You can >> discount the biological miles as not pertinent, but I think the pedal/EV >> hybrid is a very worth design. Far cleaner than other alternatives for >> most power sources and use cases. >> >> >> On Sat, Aug 22, 2015 at 8:35 PM, Mark Abramowitz via EV <[email protected]> >> wrote: >> >>> Aren't EV miles *dirtier* for bikes? Don't they mostly use unassisted >>> bikes? >>> >>> Sent from my iPhone >> >> -- >> To invent, you need a good imagination and a pile of junk. >> Thomas A. Edison >> <http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> >> >> A public-opinion poll is no substitute for thought. >> *Warren Buffet* >> >> Michael E. Ross >> (919) 585-6737 Land >> (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Google Phone >> (919) 600-2892 Cell >> >> [email protected] >> <[email protected]> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150823/adf987bc/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) > > _______________________________________________ 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)
