Submitted by Live_Strongerrr t3_10o8vih in explainlikeimfive
Deil_Grist t1_j6dgtkx wrote
Reply to comment by SkateIL in Eli5 why aren't gas only vehicles far more fuel efficient than before by Live_Strongerrr
2/3 of the energy of an average ICE is lost as heat and noise. The main limiting factor is the size constraints of ICE don't allow it to use that heat the same way a power plant can, hence why round trip fuel /carbon efficiency of BEVs are so good even when the electricity comes from fossil fuels.
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