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To: Red Badger; D-fendr; Bitsy; E. Pluribus Unum; sinanju; Ingtar; FReepaholic; KarlInOhio; ...

So from 92kWH for three days, that would mean a monthly electric bill of about $138 for their “average family”. That’s reasonable.

372 miles, if at 60mph is 6.2 hours.

92kWH used constantly would be 14.8kW.

746W per HP means 19.9HP would be available to maintain that cruising speed. That’s doable in current ultracompacts.

OTOH, lets examine “1,088HP”....enough to beat “some internal combustion models...” LOL. “some” Seeing as the Corvette 6.2l monster is rated at 430HP, yeah, 1,088HP would be just about beat “some” engines out there. This is the kind of “tell” in an article that shows the writer has no clue what numbers they’re throwing around.

1088HP = 811.6kW

92kWH/811kW = full throttle for 6.8 minutes.

So all in all, the numbers are rational. Not necessarily *reasonable* or practical, but exactly what you’d expect if you scaled up a child’s R/C race car to full size.

IOW, there’s nothing magical about electric cars here, just same old laws of physics and scale.


20 posted on 09/30/2011 9:32:17 AM PDT by sam_paine (X .................................)
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To: sam_paine

>> OTOH, lets examine “1,088HP”....enough to beat “some internal combustion models...” LOL. “some” Seeing as the Corvette 6.2l monster is rated at 430HP, yeah, 1,088HP would be just about beat “some” engines out there. This is the kind of “tell” in an article that shows the writer has no clue what numbers they’re throwing around. <<

I’d like to see a Corvette go 0 to 60 in about 2.8 seconds. There’s a reason the author calls the Roadster and this car “supercars.”

What is “magical” is the efficiency at converting electricity to power (and torque). The problem has long been the effective transport of that electricity, since you can’t exactly drag an extension cord all the way to work.


30 posted on 09/30/2011 9:45:16 AM PDT by dangus
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