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Old 07-01-2010, 11:55 PM   #75 (permalink)
Patrick
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Location: Northern Florida, USA
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Hot Tamale - '10 Toyota Prius III
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Quote:
Originally Posted by NeilBlanchard View Post
You take a 80-90% efficient motor, and it will beat a 20-30% efficiency engine every time.
I agree with you here. But that electricity had to be made somewhere, I don't think they're producing any 100% efficient power stations yet. So multiply your motor efficiency rating by the efficiency of the powerplant to get the actualy energy input to make the EV move.

Quote:
Originally Posted by NeilBlanchard View Post
Take the 7.5kWh per gallon of gasoline, and use it instead directly in an EV and you go farther -- and you'll save all the gasoline.
Again, the electricity had to be generated somewhere. Unless it was via renewables, then a fossil-fueled plant with all its inefficiencies produced it. Coal, CNG, or something else was used to make it. The electricity didn't just appear out of thin air. That's why well-to-wheels is the only fair comparison, IMO.
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