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Originally Posted by Ghia5L
90% efficiency from a coal plant (or pretty much any power plant)? Dreaming...
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Exactly, from what I remember the “efficiency” of an electric car’s engine, once you take into account the generation and distribution of the power is roughly the same as a petrol engine in the low 20% range. The most efficient engines are the big turbocharged two stroke diesels in ships that turn at 100rpm, they can achieve 50% efficiency or more.