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> because the motors and other moving parts become increasigly efficient (& are already much better than a combustion engine) then less energy is required for the same resulting work

The resulting work is more important than the efficiency. Teslas have exceptionally low air drag, which is great for driving range.

However when you go from 80 to 90% system efficiency, you only increase range by 12%. Once youre at 99%, you really cant improve any more. 99% to 99.5% means the motor outputs half as much heat but goes hardly any farther.




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