Quote:
Originally Posted by ConnClark
You're making the assumption that energy conversion is 100% efficient for electrical production. In reality its only about 33% on average. If you want to take from that the Grid losses of about 5% and consider batteries are only 85 to 90% efficient with charging and about 90 to 95% efficient discharging. All said and done it puts you right back at the same efficiency of a standard car (Note there are other losses that could be considered too).
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The numbers you have presented for electric efficiency do not boil down to 33%, which (probably not coincidentally) is the approximate efficiency of a typical gasser, except for all the inefficiencies of producing the fuel (not insignificant.)