On 9 Jul 2021 at 0:21, Peri Hartman via EV wrote: > As little as 12 percent of the energy from a car´s gasoline fuel goes > toward making it move.
I've seen this number cited a few times before. I would have guessed something closer to 15-18%, but given our penchant here in the US for 2+ ton monster trucks with gigantic engines, 12% might be about right. Just for kicks, below is a link to a paper from 2011 which evaluates a highly fuel efficient conventional ICEV then available in Europe, a Diesel VW Lupo (rated 78mpg). It concluded that the Lupo captured about 28% of the energy in the fuel. http://sites.science.oregonstate.edu/~giebultt/COURSES/ph313/ppt/carefficienc y.pdf And that's about as good as it gets for ICEVs. > By contrast, battery electric vehicles are between 60 and 100 percent > efficient. Uh ... no. While EVs are unquestionably a LOT more efficient than ICEVs, I'm pretty sure that the upper limit of their efficiency range is less than 100 percent. There's some good info in this piece, but I don't think the article's author, Sarah Kaplan, helped make her case with that obviously implausible statement. It kind of knocks her credibility all askew. So it goes in "journalism," unfortunately. David Roden, EVDL moderator & general lackey To reach me, don't reply to this message; I won't get it. Use my offlist address here : http://evdl.org/help/index.html#supt = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Celebrity: a person known for his well-knownness. = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
