Re: OT History Channel- Sugar

Posted by MarkB_MI on September 16, 2005 at 04:16:42 from (64.31.11.185):

In Reply to: Re: OT History Channel- Sugar posted by jfp on September 16, 2005 at 02:58:23:

Good morning to you, too, JFP.

My point was that it's meaningless to talk about gas mileage on a vehicle when you're not actually powering it with gas. My '88 Chevy pickup gets about a million miles to the gallon. That is, if you tow it, which is the only way it's likely to move these days.

Let's examine Mr. Gremban's 25 cents a night claim: Assume that he's paying 5 cents a kilowatt hour. And assume a total conversion efficiency of 50 percent, which I think is wildly optimistic, given the losses in the charger, batteries, motor controls and motors.

So:

25 cents divided by 5 cents per kw-h is 5 kilowatt-hours.

At 50 percent efficiency, he gets 2.5 kw-hr to the wheels.

2500 watt-hrs divided by 746 watts per hp gives him 3.4 hp-hours.

How far do you think he's driving on 3.4 horsepower-hours of energy?

As much respect as I have for German engineers, I've known them to do some goofy things. Like buying a Prius, for example.

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• Re: OT History Channel- Sugar jfp 05:27:34 09/16/05 (0)

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