Quote:
Originally Posted by Sven7
The big question is this: Which emits fewer greenhouse gases: 800Wh of coal-fired electricity or the amount of extra gas your cold engine burns?
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Hands down the coal-fired electricity. Cold engines are ridiculously inefficient and coal plants, while filthy, have a much higher thermal efficiency.
I am willing to admit the comparison between efficiencies does not address the entire question as the 800Wh is not a watt for watt replacement in powering your vehicle.