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Old 09-15-2008, 09:34 AM   #42 (permalink)
kverges
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Join Date: Feb 2005
Location: Dallas
Posts: 925
The Tesla efficiency calculations actually are impressive - I take back what I said, but I do wonder how they got the 110 watt-hours per kilometer figure. It is slated as having a 200 kw motor, so if it can roll along at 100 km/hr and use just 10% of that capacity, then it would use 20 kw-hours of energy to travel 100 km, or 200 watt-hours per km. So the motor must be able to run at about 5% of rated capacity to get the quoted 110 watt-hours per km figure. I remain skeptical that in the real world a driver would, on average, call upon only 5% of the power. If you go to average of 10% power or more, I suspect the Tesla does not exceed gasoline power. I woudl love to see real world results.
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