I was referring to human power. Much more efficient. Sent from my iPhone
> On Aug 23, 2015, at 10:41 AM, Michael Ross <michael.e.r...@gmail.com> wrote: > > 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 <ev@lists.evdl.org> > 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 > > A public-opinion poll is no substitute for thought. > Warren Buffet > > Michael E. Ross > (919) 585-6737 Land > (919) 576-0824 Google Phone > (919) 600-2892 Cell > > michael.e.r...@gmail.com > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150823/6770f3b3/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)
