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Originally Posted by trebuchet03
Ignoring the high heat value of combustible fuels is like ignoring the charger efficiency of an electric vehicle. Yes, the motor might be 90% efficiency - but that doesn't mean 90% of the energy put in gets converted to useful work  It's not very truthful to ignore everything except the motor... |
That's true, and at the same time it isn't truthful to ignore or trivialize the energy needed to extract, refine, and transport oil/gasoline. Very few look at well to wheels efficiency, or even mention that with a PV setup or something similar the efficiency of electricity generation is something of a moot point.